CN119908801A - Medical power handles and medical kits - Google Patents
Medical power handles and medical kits Download PDFInfo
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- CN119908801A CN119908801A CN202510234815.4A CN202510234815A CN119908801A CN 119908801 A CN119908801 A CN 119908801A CN 202510234815 A CN202510234815 A CN 202510234815A CN 119908801 A CN119908801 A CN 119908801A
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Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a medical power handle and a medical kit, wherein the medical power handle comprises a mounting sleeve, a supporting accessory and a connecting sleeve; the power transmission piece is coaxially arranged in the mounting sleeve and can rotate around the axis of the power transmission piece, a cutter accommodating cavity for inserting a cutter is axially formed in the power transmission piece, the cutter accommodating cavity is used for communicating a cutter supporting channel, the lock sleeve is matched with the sleeve and is arranged outside the mounting sleeve and can rotate around the axis of the mounting sleeve, the rotating position of the lock sleeve comprises a full locking position, a half locking position and a full unlocking position, the lock sleeve locks or unlocks the cutter through a first transmission structure, and the lock sleeve locks or unlocks a supporting accessory through a second transmission structure. According to the invention, the different connection states of the cutter and the support accessory with the handle can be realized according to the switching of different gears, and the requirements of operators on different working conditions can be met.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a medical power handle and a medical kit.
Background
The medical abrasive drill is an important medical instrument, is widely applied to a plurality of medical fields such as orthopaedics, dentistry, neurosurgery and the like, and mainly comprises a handle, a motor, a cutter and the like. The rotary cutter (drill bit) is used for cutting, grinding, repairing and the like of bones or teeth, and is mainly used for treating bone tissues or teeth in surgical operations.
The medical grinding handle is usually connected with the cutter through the support accessory, and the support accessory and the cutter are locked simultaneously before normal operation so as to ensure reliable operation. However, the existing grinding drill handle is provided with two locking mechanisms for locking the supporting accessory and the cutter in one-to-one correspondence, when the supporting accessory and the cutter are required to be simultaneously unlocked or locked, the two locking mechanisms are required to be simultaneously operated, the operation is complex, the locking mechanisms corresponding to the supporting accessory are also easy to be mistakenly touched in the process of independently replacing the cutter, the supporting accessory is required to be locked, the time cost for replacing the cutter is long, and the operation time is prolonged.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a medical power handle and a medical kit, which are used for solving the problems that the operation of the grinding handle in the prior art is complex when the support accessory and the cutter are required to be locked or unlocked simultaneously, and the support accessory is easy to be touched by mistake when the cutter is required to be replaced independently, so that the replacement time cost is long.
To achieve the above and other related objects, the present invention provides the following technical solutions:
a medical power handle for detachably connecting with a cutter and driving the cutter, a front end of the medical power handle detachably connecting with a support accessory having a cutter support channel, the medical power handle comprising:
the mounting sleeve is used for being spliced with the supporting accessory;
The power transmission part is coaxially arranged in the mounting sleeve and can rotate around the axis of the power transmission part, a cutter accommodating cavity for inserting a cutter is axially formed in the power transmission part, and the cutter accommodating cavity is used for communicating the cutter supporting channel;
The lock sleeve is matched and sleeved outside the mounting sleeve, and can rotate around the axis of the mounting sleeve, the rotating position of the lock sleeve comprises a full locking position, a half locking position and a full unlocking position, the lock sleeve locks or unlocks the cutter through the first transmission structure, and the lock sleeve locks or unlocks the supporting accessory through the second transmission structure;
When the lock sleeve is positioned at the full locking position, the first transmission structure locks the cutter inserted in the cutter accommodating cavity, and the second transmission structure locks the support accessory inserted at the front end of the mounting sleeve;
When the lock sleeve is positioned at the half locking position, the first transmission structure unlocks a cutter inserted in the cutter accommodating cavity, and the second transmission structure locks a support accessory inserted at the front end of the mounting sleeve;
When the lock sleeve is positioned in the full unlocking position, the first transmission structure unlocks the cutter inserted in the cutter accommodating cavity, and the second transmission structure unlocks the support accessory inserted in the front end of the installation sleeve.
Optionally, the first transfer structure includes:
The first guide groove is arranged on the lock sleeve or the mounting sleeve, a plurality of locking groove parts are arranged on the first guide groove at intervals along the guide edge of the first guide groove, and each locking groove part corresponds to one gear;
The gear locking piece is matched and arranged in the first guide groove and is configured to move along the guide direction of the first guide groove when the lock sleeve rotates;
When the lock sleeve is positioned at any gear among the full locking position, the half locking position and the full unlocking position, the gear locking piece is embedded into the corresponding locking groove part.
Optionally, the first guide groove penetrates through the peripheral side wall of the mounting sleeve, the first guide groove is a cylindrical spiral groove, and the first transmission structure further comprises:
The second guide groove is arranged on the inner wall of the lock sleeve and extends along the axial direction of the lock sleeve, and the gear locking part extends into the second guide groove;
The movable sleeve is arranged in the mounting sleeve and is movably sleeved outside the power transmission piece, the movable sleeve is used for locking the cutter by moving along the first axial direction of the power transmission piece or unlocking the cutter by moving along the second axial direction of the power transmission piece, a limiting ring groove is formed in the peripheral wall of the movable sleeve along the circumferential direction, and the gear locking piece part extends into the limiting ring groove;
When the lock sleeve rotates, the gear locking piece drives the movable sleeve to move along the axial direction of the power transmission piece under the combined guiding action of the first guide groove, the second guide groove and the limiting ring groove.
Optionally, the first guide groove is formed in the inner wall of the lock sleeve, the first guide groove is a cylindrical spiral groove, and the first transmission structure further comprises:
The second guide groove penetrates through the peripheral side wall of the mounting sleeve and extends along the axial direction of the mounting sleeve;
The movable sleeve is arranged in the mounting sleeve and is movably sleeved outside the power transmission piece, the movable sleeve is used for locking the cutter by moving along the first axial direction of the power transmission piece or unlocking the cutter by moving along the second axial direction of the power transmission piece, a limiting ring groove is formed in the peripheral wall of the movable sleeve along the circumferential direction, and the gear locking piece part extends into the limiting ring groove;
When the lock sleeve rotates, the gear locking piece drives the movable sleeve to move along the axial direction of the power transmission piece under the combined guiding action of the first guide groove, the second guide groove and the limiting ring groove.
The plurality of locking groove parts comprise a full locking groove part, a half locking groove part and a full unlocking groove part, wherein the full locking groove part and the full unlocking groove part on the first guide groove are respectively positioned at two ends of the first guide groove, and the half locking groove part is positioned between the full locking groove part and the full unlocking groove part;
when the lock sleeve is positioned at the full locking position, the gear locking piece is embedded in the full locking groove part;
When the lock sleeve is positioned at the half locking position, the gear locking piece is embedded in the half locking groove part;
When the lock sleeve is positioned in the full unlocking position, the gear locking piece is embedded in the full unlocking groove part.
Optionally, the first transmission structure further includes:
the cutter locking piece is movably embedded on the peripheral side wall of the power transmission piece so as to lock or unlock a cutter inserted in the cutter accommodating cavity;
The sliding sleeve is sleeved outside the power transmission part in a sliding manner;
A sliding sleeve elastic piece for applying elastic acting force along a first axial direction to the sliding sleeve;
The sliding sleeve moves along a first axial direction and pushes the cutter locking piece to move along a locking path so that the cutter locking piece part enters the cutter accommodating cavity and locks a cutter inserted into the cutter accommodating cavity;
the sliding sleeve moves along the second axial direction under the pushing of the moving sleeve so as to avoid the path of the cutter locking piece for unlocking the cutter.
Optionally, the second transmission structure comprises a first circumferential limit part arranged on the mounting sleeve and a first axial limit part arranged at the front end of the lock sleeve,
The first circumferential limiting part is used for being matched with the second circumferential limiting part of the supporting accessory to circumferentially limit the supporting accessory;
When the lock sleeve is in the full locking position or the half locking position, the first axial limiting part and the second axial limiting part of the support accessory are at least partially overlapped and face each other in the circumferential direction so as to prevent the support accessory from being separated from the mounting sleeve, and when the lock sleeve is in the full unlocking position, the first axial limiting part and the second axial limiting part are staggered in the circumferential direction so as to enable the support accessory to be separated from or inserted into the mounting sleeve in the axial direction.
Optionally, an installation gap for supporting the accessory to insert is formed between the lock sleeve and the installation sleeve, the installation gap is provided with a forward opening, the first circumferential limiting part is arranged on the outer wall of the installation sleeve, and the first axial limiting part is arranged on the inner wall of the lock sleeve.
Optionally, in the first axial limiting portion and the second axial limiting portion, one of the limiting portions is an annular limiting portion provided with an insertion notch, the insertion notch extends from one side of the annular limiting portion to penetrate through the other side of the annular limiting portion along the axial direction, and when the lock sleeve is in the fully unlocked position, the other limiting portion can penetrate through the insertion notch along the axial direction, so that the medical power handle and the support accessory can be separated from or inserted into each other.
Based on the same conception, the invention also provides a medical kit which comprises the medical power handle and the supporting accessory which are matched, wherein the medical power handle is the medical power handle.
As described above, the medical power handle and the medical kit of the present invention have the following beneficial effects:
The locking sleeve is rotated to integrate the locking or unlocking actions of the cutter and the support accessory with the medical power handle, when the cutter and the support accessory are required to be simultaneously unlocked, or the cutter and the support accessory are simultaneously unlocked, or the cutter is independently unlocked or locked, the cutter and the support accessory are respectively connected with the handle assembly in different connection states only through the switching of the locking sleeve, the requirements of operators on different working conditions can be met, the structure is simple, the operation is convenient, the working efficiency is improved, in addition, when the cutter is required to be independently replaced, the locking of the support accessory is not influenced, and the time cost for replacing the cutter is saved.
Drawings
FIG. 1 is a schematic view of an exploded view of a medical power handle and support accessory and cutter according to an embodiment of the present invention;
FIG. 2 is a schematic view of the assembly structure of a medical power handle and support accessory and cutter according to an embodiment of the present invention;
FIG. 3 is a schematic view showing an assembly structure of a medical power handle and a supporting sleeve according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of an assembly of a powered handle with a support accessory and a cutter for use in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a power handle for use in medicine in accordance with an embodiment of the present invention;
FIG. 6 is a partial structural cross-sectional view of a traditional Chinese medical power handle (fully locked position) according to an embodiment of the invention;
FIG. 7 is a partial cross-sectional view (semi-locking position) of a traditional Chinese medical power handle according to an embodiment of the invention;
FIG. 8 is a partial cross-sectional view of a traditional Chinese medical power handle (fully unlocked position) according to an embodiment of the present invention;
FIG. 9 is a schematic view of a portion of a traditional Chinese medical power handle (with the lock sleeve removed) according to an embodiment of the present invention;
FIG. 10 is a schematic view of a mounting sleeve according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of a power transmission member in accordance with an embodiment of the present invention;
FIG. 12 is a cross-sectional view of a power transmission member in accordance with an embodiment of the present invention in a second (A-A direction);
FIG. 13 is a schematic view of a lock sleeve according to an embodiment of the present invention;
FIG. 14 is a cross-sectional view of a sleeve according to an embodiment of the present invention;
FIG. 15 is an M-view of a sleeve according to an embodiment of the present invention;
FIG. 16 is an N-directional view of a sleeve according to an embodiment of the present invention;
FIG. 17 is a schematic view of a moving sleeve according to an embodiment of the present invention;
FIG. 18 is a schematic view of a cutter according to an embodiment of the present invention;
FIG. 19 is a schematic diagram of a cutter according to a second embodiment of the present invention;
FIG. 20 is a schematic view of a support sleeve according to an embodiment of the present invention;
FIG. 21 is a cross-sectional view (B-B) of a support sleeve in accordance with an embodiment of the present invention;
fig. 22 is a P-view of a support sleeve in an embodiment of the invention.
Description of the reference numerals
100-A medical power handle;
11-mounting sleeve, 111-first guide groove, 111 a-full unlocking groove part, 111 b-half locking groove part, 111c full locking groove part, 112-first circumferential limit part and 113-limit surface;
12-power transmission part, 121-tool accommodating cavity, 122-locking part mounting hole and 123-tool positioning hole;
13-lock sleeve, 131-second guide groove, 132-first axial limit part;
14-sliding sleeve;
15-a movable sleeve, 151-a limiting ring groove;
16-an elastic sleeve;
17-tool lock, 18-gear lock, 19-tool positioning;
20-first bearing, 21-second bearing;
the elastic piece of the 23-movable sleeve;
24-locking screw sleeve and 25-connecting screw sleeve;
200-knife tool, 210-locking groove, 220-power part;
300-supporting attachment, 310-supporting sleeve, 311-second circumferential limit part, 312-second axial limit part, 312 a-inserting notch and 313-tool supporting channel.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
The "medical power handle" in this example may be a grinding handle and the "cutter" may be a grinding cutter having a cutter bar and a grinding head. Of course, in the practical implementation process, the medical power handle is not excluded from being other than a grinding handle, and the cutter is not excluded from being other than a grinding cutter.
In the following description of the various embodiments, the term "axial direction" is the axial direction of the entire medical power handle, and the terms "distal" and "proximal" are relative directions, with "distal" (or "front") referring to a direction axially closer to the grater of the tool and "proximal" (or "rear") referring to a direction axially farther from the grater of the tool.
Referring to fig. 1 to 4, the present invention provides a medical power handle for detachably connecting with a cutter 200 and driving the cutter 200, wherein a front end of the medical power handle 100 is detachably connected with a support accessory 300 having a cutter support channel 313, the medical power handle 100 comprises a mounting sleeve 11, a power transmission member 12, a lock sleeve 13, a first transmission structure and a second transmission structure, wherein the mounting sleeve 11 is used for being inserted into the support accessory 300; the power transmission member 12 is coaxially arranged in the mounting sleeve 11 and can rotate around the axis of the power transmission member, a cutter accommodating cavity 121 for inserting the cutter 200 is axially arranged in the power transmission member 12, the cutter accommodating cavity 121 is used for communicating with the cutter supporting channel 313, the lock sleeve 13 is matched and sleeved outside the mounting sleeve 11 and can rotate around the axis of the mounting sleeve 11, the rotating position of the lock sleeve 13 comprises a full locking position, a half locking position and a full unlocking position, the lock sleeve 13 locks or unlocks the cutter 200 through a first transmission structure, the lock sleeve 13 locks or unlocks the supporting accessory 300 through a second transmission structure, when the lock sleeve 13 is in the full locking position, the first transmission structure locks the cutter 200 inserted in the cutter accommodating cavity 121, the second transmission structure locks the supporting accessory 300 inserted in the front end of the mounting sleeve 11, when the lock sleeve 13 is in the half locking position, the first transmission structure unlocks the cutter 200 inserted in the cutter accommodating cavity 121, when the second transmission structure is in the full locking position, the cutter 200 inserted in the front of the mounting sleeve 121, the second transmission structure unlocks the support accessory 300 inserted in the front end of the mounting sleeve 11.
Specifically, the support accessory 300 and the cutter 200 can be detachably connected to the medical power handle 100, a cutter support channel 313 penetrating along the axial direction is provided inside the support accessory 300, and when the support accessory 300 is connected to the medical power handle 100, the distal end of the mounting sleeve 11 is inserted into the cutter support channel 313 of the support accessory 300 (in other examples, the support accessory 300 may also be provided to be inserted into the mounting sleeve 11) when the support accessory 300 is connected to the medical power handle 100. The support accessory 300 is connected with the mounting sleeve 11 and the lock sleeve 13 respectively, and the axial positions of the lock sleeve 13 and the mounting sleeve 11 are relatively fixed. When the cutter 200 is connected with the medical power handle 100, the front end of the mounting sleeve 11 is penetrated in the cutter supporting channel 313 of the supporting accessory 300, the cutter supporting channel 313 of the supporting accessory 300 is communicated with the cutter accommodating cavity 121 of the power transmission member 12, the tail part of the cutter 200 can penetrate through the cutter supporting channel 313 of the supporting accessory 300 and be inserted into the cutter accommodating cavity 121, and when the cutter 200 is locked in the power transmission member 12, the cutter can synchronously rotate along with the power transmission member 12. The implementation of the tool support channel 313 is not limited to the case of the embodiment in this example, and any manner in the prior art may be adopted.
The lock sleeve 13 can rotate around the axis of the installation sleeve 11, the lock sleeve 13 can be located in different gears (a full locking position, a half locking position and a full unlocking position) through the rotation of the lock sleeve 13, the rotation of the lock sleeve 13 can lock or unlock the cutter 200 by means of a first transmission structure, and lock or unlock the support accessory 300 by means of a second transmission structure, so that different connection states of the cutter 200 and the support accessory 300 with the medical power handle 100 are realized, and the following are achieved:
When the lock sleeve 13 is rotated to the full locking position, the cutter 200 inserted in the cutter accommodating cavity 121 can be locked by the first transmission structure, and the support accessory 300 inserted in the front end of the mounting sleeve 11 can be locked by the second transmission structure. Even if the cutter 200 and the power transmission member 12 are in a locked connection state, and the support accessory 300 is connected to the mounting sleeve 11 and the lock sleeve 13, respectively, so that the cutter 200 and the support accessory 300 each remain in a locked state with the medical power handle 100, normal operation can be performed at this time.
When the lock sleeve 13 is rotated to the half locking position, the cutter 200 inserted in the cutter accommodating cavity 121 is unlocked through the first transmission structure, and the support accessory 300 inserted at the front end of the mounting sleeve 11 is locked through the second transmission structure, namely, the support accessory 300 and the medical power handle 100 are still in a locking state, and the cutter 200 and the medical power handle 100 are in an unlocking state, at the moment, the support accessory 300 cannot move, and only the cutter 200 can be freely inserted or removed, so that the lock sleeve is suitable for the condition that only the cutter 200 needs to be replaced without replacing the support accessory 300. Thus, by rotating the lock sleeve 13 to the half-locking position, only the cutter 200 can be replaced without affecting the locking of the support accessory 300, facilitating the quick replacement of the cutter 200 to accommodate different surgical demands, and improving the flexibility and efficiency of the surgery.
When the lock sleeve 13 is rotated to be in the full unlocking position, the cutter 200 inserted in the cutter accommodating cavity 121 is unlocked through the first transmission structure, and the support accessory 300 inserted in the front end of the mounting sleeve 11 is unlocked through the second transmission structure. Namely, the cutter 200 is unlocked from the power transmission member 12, and the supporting accessory 300 is unlocked from the mounting sleeve 11 and the lock sleeve 13 respectively, so that the cutter 200 and the supporting accessory 300 are unlocked from the medical power handle 100 respectively, and the cutter 200 and the supporting accessory 300 can be freely inserted or removed at the moment, so that the device is suitable for the condition that the cutter 200 and the supporting accessory 300 are required to be mounted or dismounted. Thus, by rotating the lock sleeve 13 to the full unlocking position, the cutter 200 and the support accessory 300 can be simultaneously unlocked, and the operation is quick and convenient.
The locking sleeve 13 is rotated to integrate the locking or unlocking actions of the cutter 200 and the support accessory 300 and the medical power handle 100, when the support accessory 300 and the cutter 200 are required to be simultaneously unlocked, or the cutter 200 is required to be independently unlocked or locked, the cutter 200 and the support accessory 300 can be respectively connected with the handle assembly in different connection states only through the switching of the locking sleeve 13 in different gears, the requirements of operators on different working conditions can be met, the structure is simple, the operation is convenient, the operation efficiency is improved, in addition, the locking of the support accessory 300 is not influenced when the cutter 200 is required to be independently replaced, and the time cost for replacing the cutter 200 is saved.
Referring to fig. 9 and 10, in some embodiments, the first transmission structure includes a first guide groove 111 and a gear locking member 18, wherein the first guide groove 111 is provided on the lock sleeve 13 or the mounting sleeve 11, a plurality of locking groove portions are spaced apart along a guide edge of the first guide groove 111, each of the locking groove portions corresponds to one gear, the gear locking member 18 is cooperatively provided in the first guide groove 111, the gear locking member 18 is configured to move along a guide direction of the first guide groove 111 when the lock sleeve 13 rotates, and the gear locking member 18 is embedded in the corresponding locking groove portion when the lock sleeve 13 is located in any one of a full locking position, a half locking position and a full unlocking position.
Specifically, the first guide groove 111 plays a guiding role for the gear locking member 18 to ensure that the gear locking member 18 can smoothly move along a predetermined path when the lock sleeve 13 rotates, and when the lock sleeve 13 rotates, the gear locking member 18 located in the first guide groove 111 can be moved along the guiding direction of the first guide groove 111 and can be embedded into the corresponding locking groove portion, thereby realizing the switching between the gears. Each of the locking groove portions of the first guide groove 111 is disposed at intervals, and each of the locking groove portions corresponds to one gear (for example, the full locking position, the half locking position, and the full unlocking position each correspond to one locking groove portion), so that the gear locker 18 can be switched between the locking groove portions. In this example, the shift lock member 18 employs a ball member, which facilitates smooth shift between the respective lock groove portions.
In some embodiments, the first guide groove 111 penetrates through the circumferential side wall of the mounting sleeve 11, the first guide groove 111 is a cylindrical spiral groove (see fig. 10), the first transmission structure further comprises a second guide groove 131 and a moving sleeve 15, wherein the second guide groove 131 (see fig. 13 to 16) is formed in the inner wall of the lock sleeve 13 and extends along the axial direction of the lock sleeve 13, the gear locking member 18 extends into the second guide groove 131 partially, the moving sleeve 15 (see fig. 5 and 17) is formed in the mounting sleeve 11 and is movably sleeved outside the power transmission member 12, the moving sleeve 15 is used for locking the cutter 200 by moving along the first axial direction of the power transmission member 12 or is used for unlocking the cutter 200 along the second axial direction of the power transmission member 12, a limiting ring groove 151 is formed in the circumferential wall of the moving sleeve 15, the gear locking member 18 extends into the limiting ring groove 151 partially, and the second guide groove 111 and the second guide groove 131 jointly move along the limiting ring groove 151 when the lock sleeve 13 rotates.
Specifically, in this example, the first axial direction of the power transmission member 12 is a direction toward the proximal end of the power transmission member 12, i.e., toward the proximal end of the medical power handle 100, and the second axial direction of the power transmission member 12 is opposite to the first axial direction, i.e., the second axial direction is a direction toward the distal end of the power transmission member 12, i.e., toward the distal end of the medical power handle 100. The first guide groove 111 penetrates through the circumferential side wall of the mounting sleeve 11 in the form of a cylindrical spiral groove, namely, the axial direction of the first guide groove 111 is overlapped with the axial direction of the mounting sleeve 11, in the example of fig. 8, the coverage range of the first guide groove 111 in the circumferential direction is smaller than 180 degrees, therefore, the first guide groove 111 is approximately similar to an inclined groove inclined relative to the axial direction of the mounting sleeve 11 (namely, the extending direction of the first guide groove 111 is inclined relative to the axial direction of the mounting sleeve 11), so that the gear locking piece 18 can ascend or descend along the spiral groove on the mounting sleeve 11, the second guide groove 131 is arranged on the inner wall of the lock sleeve 13 in the form of axial extension, guide restraint of axial movement is provided for the gear locking piece 18, the gear locking piece 18 can move along the axial direction of the lock sleeve 13, and a limit groove 151 (refer to fig. 13) is arranged on the outer circumferential wall of the moving sleeve 15 in the circumferential direction, the limit groove 151 allows the gear locking piece 18 to transmit power to the moving sleeve 15, so that the gear locking piece 18 can accurately drive the moving sleeve 15 to move along the moving sleeve 15 in the moving process, and the moving direction 200 can be unlocked through the cutter 200. The gear locking member 18 is located in the second guide groove 131, the first guide groove 111 and the limiting ring groove 151 (see fig. 7), and the gear locking member 18 can convert the circumferential rotation of the lock sleeve 13 into the axial movement of the moving sleeve 15 under the combined guide action of the first guide groove 111, the second guide groove 131 and the limiting ring groove 151, so as to reliably lock or unlock the cutter 200.
The lock sleeve 13 is sleeved outside the installation sleeve 11, the moving sleeve 15 is positioned in the installation sleeve 11, in this embodiment, (see fig. 14 and 16) two second guide grooves 131 are symmetrically arranged on the lock sleeve 13, the second guide grooves 131 extend along the axial direction of the lock sleeve 13, the second guide grooves 131 are in circular arc shape along the cross section perpendicular to the lock sleeve 13, the notch of each second guide groove 131 is communicated with the inside of the lock sleeve 13, the second guide grooves 131 allow the gear locking piece 18 to move along the axial direction inside the lock sleeve 13, two first guide grooves 111 are correspondingly arranged on the installation sleeve 11, when the lock sleeve 13 rotates relative to the installation sleeve 11, the gear locking piece 18 positioned in each first guide groove 111 gradually changes along a spiral path and can convert circumferential rotation of the lock sleeve 13 into axial movement of the moving sleeve 15, the limiting ring groove 151 is circumferentially arranged at the rear end of the moving sleeve 15, and the front end of the moving sleeve 15 is close to the sliding sleeve 14. When the lock sleeve 13 is rotated, the gear locking member 18 moves along the second guide groove 131 along with the rotation of the lock sleeve 13, and is converted into movement along the axial direction of the mounting sleeve 11 by the first guide groove 111 of the mounting sleeve 11, and the gear locking member 18 is also in the limit ring groove 151 of the moving sleeve 15, so that the moving sleeve 15 can be synchronously driven to move along the axial direction on the power transmission member 12. The gear locking member 18 is located in the second guide groove 131, the first guide groove 111 and the limiting ring groove 151 at the same time, and the multiple constraint and guide mechanisms enable the locking process to be more accurate and reliable, and through the cooperation, the rotation of the lock sleeve 13 is converted into the movement of the moving sleeve 15.
In other embodiments, the first guiding groove 111 is formed on the inner wall of the lock sleeve 13, the first guiding groove 111 is a cylindrical spiral groove, the first transmission structure further comprises a second guiding groove 131 and a moving sleeve 15, the second guiding groove 131 penetrates through the circumferential side wall of the mounting sleeve 11 and extends along the axial direction of the mounting sleeve 11, the moving sleeve 15 is arranged in the mounting sleeve 11 and is movably sleeved outside the power transmission member 12, the moving sleeve 15 moves in the first axial direction of the power transmission member 12 to lock the cutter 200 or moves in the second axial direction of the power transmission member 12 to unlock the cutter 200, a limiting ring groove 151 is formed on the outer circumferential wall of the moving sleeve 15 in the circumferential direction, the gear locking member 18 partially stretches into the limiting ring groove 151, and when the lock sleeve 13 rotates, the gear locking member 18 is driven to move along the axial direction of the power transmission member 12 under the combined guiding action of the first guiding groove 111, the second guiding groove 131 and the limiting ring groove 151.
Specifically, unlike the above embodiment, in this embodiment, the first guide groove 111 is formed in the inner wall of the lock sleeve 13 in the form of a cylindrical spiral groove, so that the gear locking member 18 can climb or descend along the spiral groove on the lock sleeve 13, the second guide groove 131 penetrates the peripheral side wall of the mounting sleeve 11 in an axially extending manner, so as to provide a guide constraint for axial movement of the gear locking member 18, so that the gear locking member 18 can move along the axial direction of the mounting sleeve 11, and the limiting ring groove 151 allows the gear locking member 18 to transmit power to the moving sleeve 15, so that the gear locking member 18 can accurately drive the moving sleeve 15 to move in the moving process, and locking and unlocking of the cutter 200 can be achieved by moving the moving sleeve 15 along the axial direction of the power transmission member 12. The gear locking member 18 can convert the circumferential rotation of the lock sleeve 13 into the axial movement of the moving sleeve 15 under the co-guiding action of the first guiding groove 111, the second guiding groove 131 and the limiting ring groove 151, so as to achieve reliable locking or unlocking of the cutter 200. That is, when the lock sleeve 13 is rotated, the shift lock member 18 moves along the first guide groove 111 along with the rotation of the lock sleeve 13 and is converted into movement along the axial direction of the mounting sleeve 11 by the second guide groove 131 of the mounting sleeve 11, and since the shift lock member 18 is also in the limit groove 151 of the moving sleeve 15, the moving sleeve 15 can be synchronously driven to move along the axial direction on the power transmission member 12.
Referring to fig. 10, in the above embodiment, the plurality of locking groove portions includes a full locking groove portion 111c, a half locking groove portion 111b and a full unlocking groove portion 111a, the full locking groove portion 111c and the full unlocking groove portion 111a on the first guide groove 111 are located at two ends of the first guide groove 111, respectively, the half locking groove portion 111b is located between the full locking groove portion 111c and the full unlocking groove portion 111a, when the lock sleeve 13 is located at the full locking position, the gear locking member 18 is embedded in the full locking groove portion 111c, when the lock sleeve 13 is located at the half locking position, the gear locking member 18 is embedded in the half locking groove portion 111b, and when the lock sleeve 13 is located at the full unlocking position, the gear locking member 18 is embedded in the full unlocking groove portion 111 a.
Specifically, three locking groove portions may be disposed on the inner sidewall of the first guide groove 111 at intervals, each locking groove portion corresponds to one gear, a transition portion is disposed between two adjacent locking groove portions, each locking groove portion has an inner arc structure, each transition portion has an outer arc structure, and each locking groove portion is adapted to the gear locking member 18, so that the gear locking member 18 can smoothly switch between the gears in the first guide groove 111 along with the rotation of the lock sleeve 13. Further, by switching the position of the shift lock 18 among the full lock groove portion 111c, the half lock groove portion 111b, and the full unlock groove portion 111a, the locked states of the support accessory 300 and the cutter 200, respectively, which are different from the medical power handle 100, can be achieved. The full unlocking groove portion 111a and the full locking groove portion 111c are respectively located at two ends of the first guide groove 111, and the arrangement ensures that clear starting and ending positions exist in the adjusting process, so that an operator can conveniently and accurately execute unlocking and locking operations, and quick replacement or disassembly is facilitated. The half locking groove portion 111b is located between the full locking groove portion 111c and the full unlocking groove portion 111a, so that an operator can easily switch the gear locker 18 among the full locking groove portion 111c, the half locking groove portion 111b and the full unlocking groove portion 111a by rotating the lock sleeve 13 according to specific needs, and can conveniently and rapidly replace the tool changer 200 without disassembling the support accessory 300. The design of the first guide groove 111 makes the locking and unlocking process of the cutter 200 simpler, and the user can switch between different gears only by simple rotation operation of the lock sleeve 13, so that the working efficiency is improved, and the design of the first guide groove 111 and the positions of different locking groove parts thereof not only improves the accuracy and efficiency of handle operation, but also enhances the applicability and flexibility.
It is worth mentioning that the moving sleeve can be locked or locked by moving along the power transmission member, and the existing steel ball locking or elastic clamping arm locking mode can be adopted. The following embodiments exemplarily illustrate one implementation of "moving a sleeve to lock a tool by moving in a first axial direction of a power transmission member or to unlock a tool by moving in a second axial direction of a power transmission member" with reference to the accompanying drawings:
Referring to fig. 5 to 8, in one possible embodiment, the first transmission structure further includes a tool locking member 17, a sliding sleeve 14 and a sliding sleeve elastic member 22, wherein the tool locking member 17 is movably embedded on a circumferential sidewall of the power transmission member 12 to lock or unlock the tool 200 inserted in the tool accommodating cavity 121, the sliding sleeve 14 is slidably sleeved outside the power transmission member 12, the sliding sleeve elastic member 22 is used for elastic force in a first axial direction of the sliding sleeve 14 Shi Jiayan, the sliding sleeve 14 moves in the first axial direction and pushes the tool locking member 17 to move along a locking path, so that the tool locking member 17 partially enters the tool accommodating cavity 121 and locks the tool 200 inserted in the tool accommodating cavity 121, and the sliding sleeve 14 moves in a second axial direction under the pushing of the moving sleeve 15 to avoid the path of unlocking the tool 200 by the tool locking member 17.
Specifically, the sliding sleeve 14 is slidably sleeved outside the power transmission member 12, and the sliding sleeve 14 is located inside the mounting sleeve 11. Rotation of the sleeve 13, due to the gear locking member 18, causes the sleeve 15 to move axially along the power transmission member 12 and, in turn, the sleeve 14 to move axially. When the lock sleeve 13 is rotated to the full locking position (see fig. 6), the sliding sleeve 14 can be moved along the first axial direction and push the cutter locking member 17 to move along the locking path, so that the cutter locking member 17 partially enters the cutter accommodating cavity 121 to lock the cutter 200, and when the lock sleeve 13 is rotated from the full locking position to the half locking position (see fig. 7) or to the full unlocking position (see fig. 8), the sliding sleeve 14 can be moved along the second axial direction (opposite to the first axial direction) under the action of the moving sleeve 15, so that the path of unlocking the cutter 200 by the cutter locking member 17 is avoided, the cutter locking member 17 is not blocked by the sliding sleeve 14, and the cutter 200 can be unlocked along the path of unlocking the cutter 200, so that the cutter 200 can be separated from the cutter accommodating cavity 121, and unlocking of the cutter 200 is realized. For ease of understanding, it is contemplated that the path of the tool lock 17 unlocking the tool 200 and the locking path of the locking tool 200 may be overlapping but in opposite directions.
Referring to fig. 11 and 12, it can be understood that the outer wall of the power transmission member 12 is provided with a locking member mounting hole 122 which is communicated with the tool accommodating cavity 121, and the tool locking member 17 moves along the locking member mounting hole 122, and partially enters the tool accommodating cavity 121 and is embedded in a locking groove 210 formed in the outer wall of the tool 200 to lock the tool 200, or completely exits the tool accommodating cavity 121 to unlock the tool 200. The outer wall of the tail of the cutter 200 is provided with a locking groove 210 along the circumferential direction thereof, and the cutter locking member 17 is movably embedded in the locking groove 210, in this example, the cutter locking member 17 may be a ball member, and a clamping phenomenon is not easy to occur in the locking or unlocking process, and of course, the cutter locking member 17 may be a cylindrical locking member or a locking member with another shape, so long as the cutter locking member can move along the locking member mounting hole 122 to enter and exit the cutter accommodating cavity 121.
Referring to fig. 12, in this example, two locking member mounting holes 122 are symmetrically formed in the outer wall of the power transmission member 12 along the radial direction thereof, the locking member mounting holes 122 are in communication with a tool accommodating cavity 121 inside the power transmission member 12, and the tool locking member 17 moves in the axial direction of the locking member mounting holes 122 (i.e., in the radial direction of the power transmission member 12). Rotating the lock sleeve 13 enables the slide sleeve 14 to move in the axial direction, when the slide sleeve 14 moves to cover the lock member mounting hole 122, the tool lock member 17 is pushed into the tool accommodating cavity 121 and is embedded in the locking groove 210, and the tool 200 is locked (see fig. 6), and when the slide sleeve 14 moves to expose the lock member mounting hole 122, the tool lock member 17 can move radially and exit the locking groove 210 and the tool accommodating cavity 121, and at this time, the tool 200 can be freely inserted or removed (see fig. 7 and 8).
The sliding sleeve elastic member 22 is sleeved outside the power transmission member 12, and is used for applying elastic force to the sliding sleeve 14 Shi Jiayan in the first axial direction so as to keep the position of the sliding sleeve 14 at a normal position, and when the sliding sleeve 14 is at the normal position, the tool locking member 17 locks the tool 200 inserted into the tool accommodating cavity 121 (see fig. 6). The sliding sleeve 14 is located at the distal end of the moving sleeve 15, and when the moving sleeve 15 moves in the second axial direction (overcomes the elastic force of the sliding sleeve elastic member 22), the sliding sleeve 14 can be pushed to move in the second axial direction, so as to push the sliding sleeve 14 away from the normal position, and unlock the tool 200 inserted in the tool accommodating cavity 121 (see fig. 7 and 8). Specifically, in this example, the sliding sleeve elastic member 22 is a spring, a disc spring or other types of compression springs sleeved outside the power transmission member 12, and two ends of the sliding sleeve elastic member 22 are respectively abutted between the shaft shoulder of the power transmission member 12 and the sliding sleeve 14. In this way, the elastic force applied by the sliding sleeve elastic member 22 can make the cutter locking member 17 in a state of keeping the cutter 200 locked, and if the cutter 200 is to be unlocked, the cutter 200 needs to be unlocked by overcoming the elastic force, so that the cutter 200 is beneficial to keeping the locked state in the operation process, thereby improving the safety of the operation process.
When the lock sleeve 13 is rotated to the full locking position (see fig. 6), the movable sleeve 15 can be moved along the first axial direction, so that the sliding sleeve 14 also moves along the first axial direction under the action of the sliding sleeve elastic piece 22, and reaches a normal position (that is, the sliding sleeve 14 covers the locking piece mounting hole 122), and the sliding sleeve 14 pushes the tool locking piece 17 to at least partially enter the tool accommodating cavity 121 and be embedded into the locking groove 210 of the tool 200, and the tool 200 is axially locked and cannot be pulled out, so that the tool 200 is locked;
When the lock sleeve 13 is rotated to the half locking position (see fig. 7), the moving sleeve 15 can be moved along the second axial direction (opposite to the first axial direction), the moving sleeve 15 pushes the sliding sleeve 14 to move along the second axial direction, so that the sliding sleeve 14 is in a state of exposing the locking member mounting hole 122, namely, avoiding the path of unlocking the cutter 200 by the cutter locking member 17, and the cutter locking member 17 can freely enter and exit the cutter accommodating cavity 121, so that the cutter 200 can be unlocked, and the cutter 200 can axially move and be freely separated;
By rotating the lock sleeve 13 to the fully unlocked position (see fig. 8), the moving sleeve 15 can be further moved in the second axial direction (opposite to the first axial direction), and the sliding sleeve 14 can be further moved in the second axial direction by pushing the sliding sleeve 15, so that the sliding sleeve 14 approaches the distal end of the power transmission member 12, and at this time, the tool 200 can be kept in the unlocked state because the sliding sleeve 14 is still in a state of exposing the locking member mounting hole 122.
The inner diameter of the sliding sleeve 14 is adapted to the outer diameter of the power transmission member 12, a gap is provided between the inner diameter of the moving sleeve 15 and the outer diameter of the power transmission member 12, and the inner diameter of the moving sleeve 15 is larger than the inner diameter of the sliding sleeve 14 and smaller than the outer diameter of the sliding sleeve 14. Specifically, the inner diameter of the sliding sleeve 14 is adapted to the outer diameter of the power transmission member 12, so that the sliding sleeve 14 can cover or expose the locking member mounting hole 122 when sliding on the power transmission member 12, a gap is formed between the inner diameter of the moving sleeve 15 and the outer diameter of the power transmission member 12, when the moving sleeve 15 pushes the sliding sleeve 14 to expose the locking member mounting hole 122, the tool locking member 17 is allowed to move in the radial direction, and the inner diameter of the moving sleeve 15 is larger than the inner diameter of the sliding sleeve 14 and smaller than the outer diameter of the sliding sleeve 14, so that the moving sleeve 15 can push the sliding sleeve 14 to move when sliding.
It will be appreciated that the distal and proximal ends of the power transmission member 12 are disposed within the mounting sleeve 11 by means of a first bearing 20 and a second bearing 21, respectively, with the sliding sleeve 14 and the moving sleeve 15 being located between the first bearing 20 and the second bearing 21. Wherein, the first bearing 20 is sleeved on the distal end of the power transmission member 12, the second bearing 21 is sleeved on the proximal end of the power transmission member 12, and the power transmission member 12 is rotatably connected in the mounting sleeve 11 through the first bearing 20 and the second bearing 21.
Referring to fig. 6, in the above embodiment, the first transmission structure further includes a moving sleeve elastic member 23, where the moving sleeve elastic member 23 is used to apply a force to the moving sleeve 15 Shi Jiayan in the first axial direction. The moving sleeve elastic piece 23 is sleeved outside the sliding sleeve elastic piece 22, and two ends of the moving sleeve elastic piece 23 are respectively abutted between the first bearing 20 and the moving sleeve 15. The moving sleeve elastic member 23 makes the moving sleeve 15 contact with the outer ring of the second bearing 21 all the time at one end of the moving sleeve 15 away from the moving sleeve elastic member 23 under the action of no external force, and the moving sleeve elastic member 23 and the moving sleeve 15 are stationary when the power transmission member 12 rotates. Meanwhile, the moving sleeve elastic member 23 can prevent the moving sleeve 15 from moving in a locking state of the cutter 200, thereby facilitating noise reduction and improving reliability.
The medical power handle 100 further comprises a cutter positioning member 19 and an elastic sleeve 16, wherein the cutter positioning member 19 is embedded on the peripheral side wall of the power transmission member 12, when the cutter 200 is inserted into the cutter accommodating cavity 121, a part of the cutter positioning member 19 enters the cutter accommodating cavity 121 and is abutted with the power part 220 at the tail part of the cutter 200, the elastic sleeve 16 is fixedly sleeved outside the power transmission member 12 and is positioned between the power transmission member 12 and the movable sleeve 15, and the elastic sleeve 16 limits radial movement of the cutter positioning member 19.
Specifically, referring to fig. 11 and 12, a tool positioning hole 123 is formed in a peripheral side wall of the power transmission member 12 along a radial direction thereof, the tool positioning hole 123 is communicated with a tool accommodating cavity 121 inside the power transmission member 12, in this example, two tool positioning holes 123 are symmetrically formed in the power transmission member 12, a center line of the two tool positioning holes 123 is perpendicular to a center line of the two locking member mounting holes 122, a tool positioning member 19 is disposed in each tool positioning hole 123, and the tool positioning member 19 is used for abutting against a power portion 220 at a tail portion of the tool 200 when the tool 200 is inserted into the tool accommodating cavity 121 (see fig. 14 and 15), and in this example, the tool positioning member 19 is a ball. The power part 220 is in a flat square structure, and the two symmetrically arranged cutter positioning members 19 are abutted against the power part 220, so that on one hand, the circumferential rotation of the cutter 200 can be limited, and on the other hand, the torque can be transmitted to the cutter 200 by the power transmission member 12. In this way, the tool 200 is locked circumferentially by the tool holder 19 and the tool 200 is locked axially by the tool holder 17, thereby achieving complete locking of the tool 200.
Referring to fig. 6, an elastic sleeve 16 is fixedly sleeved on the power transmission member 12, and the elastic sleeve 16 is located between the power transmission member 12 and the moving sleeve 15 and partially shields the cutter positioning hole 123, and the radial movement path of the cutter positioning member 19 is limited by the elastic sleeve 16, so that the cutter positioning member 19 is prevented from being separated from the locking member mounting hole 122 outwards.
It should be noted that, for the implementation manner of "the axial position of the lock sleeve 13 is relatively fixed to the axial position of the mounting sleeve 11" is various, in the embodiment of fig. 5, the medical power handle 100 further includes a locking screw sleeve 24 and a connecting screw sleeve 25, the locking screw sleeve 24 is sleeved on the mounting sleeve 11 and axially abuts against the interior of the lock sleeve 13, the connecting screw sleeve 25 is sleeved on the mounting sleeve 11 and abuts against the rear end of the lock sleeve 13, and the locking screw sleeve 24 and the connecting screw sleeve 25 jointly axially limit the lock sleeve 13. Specifically, the locking screw sleeve 24 is close to the front end of the mounting sleeve 11 and is in threaded connection with the mounting sleeve 11, the connecting screw sleeve 25 is located at the rear end of the locking sleeve 13 and is in threaded connection with the mounting sleeve 11, the locking screw sleeve 24 and the connecting screw sleeve 25 limit the axial movement of the locking sleeve 13 together, but can allow the locking sleeve 13 to axially rotate around the mounting sleeve 11, and the locking sleeve 13 can be kept at a preset position and stability in the mounting and using processes, so that the accurate operation and reliability of the medical power handle 100 are ensured.
The above description of how the medical power handle 100 locks and unlocks the cutter 200 by rotating the lock sleeve 13 will be described below as to how the medical power handle 100 locks and unlocks the support accessory 300 by rotating the lock sleeve 13:
The second transmission structure includes a first circumferential limit portion 112 (see fig. 10) disposed on the mounting sleeve 11, and a first axial limit portion 132 (see fig. 13) disposed at a front end of the lock sleeve 13, where the first circumferential limit portion 112 is configured to cooperate with a second circumferential limit portion 311 (see fig. 21) of the support accessory 300 to circumferentially limit the support accessory 300, where the first axial limit portion 132 and a second axial limit portion 312 (see fig. 20) of the support accessory 300 at least partially overlap and face each other in a circumferential direction when the lock sleeve 13 is in a fully locked position to block the support accessory 300 from being separated from the mounting sleeve 11, and where the first axial limit portion 132 and the second axial limit portion 312 are staggered in a circumferential direction to enable the support accessory 300 to be axially separated from or inserted into the mounting sleeve 11 when the lock sleeve 13 is in a fully unlocked position.
Specifically, when the mounting sleeve 11 is plugged with the support accessory 300, the limiting surface 113 is arranged on the mounting sleeve 11 to limit the limit position when the mounting sleeve 11 is plugged with the support accessory 300. The first circumferential limit portion 112 provided by the mounting sleeve 11 is adapted to the second circumferential limit portion 311 provided on the support accessory 300 to circumferentially limit the support accessory 300. Here, "circumferential limit" means preventing the support accessory 300 from rotating relative to the mounting sleeve 11. The circumferential limiting mode can adopt a mode of matching a key and a key groove, a mode of matching a flat square structure, a mode of matching a spline structure and the like. In this embodiment, the first circumferential spacing portion 112 and the second circumferential spacing portion 311 adopt a flat square structure, that is, the first circumferential spacing portion 112 and the second circumferential spacing portion 311 adopt mutually adapted flat square structures. Two second circumferential limiting portions 311 (in this example, inner flat sides) of the support accessory 300 are symmetrically provided, and correspondingly, two first circumferential limiting portions 112 (in this example, outer flat sides) of the mounting sleeve 11 are symmetrically provided, so that the force balance of the support sleeve 310 assembled and connected with the mounting sleeve 11 can be ensured.
When the lock sleeve 13 is rotated to the full locking position, the first axial limiting part 132 of the lock sleeve 13 and the second axial limiting part 312 of the support accessory 300 can be at least partially overlapped and opposite to each other in the circumferential direction so as to prevent the support accessory 300 from being separated from the mounting sleeve 11, thereby locking the support accessory 300 and the medical power handle 100;
When the lock sleeve 13 is rotated to the half locking position, the first axial limiting part 132 of the lock sleeve 13 and the second axial limiting part 312 of the support accessory 300 are still in an overlapped and opposite state in the circumferential direction, namely, the support accessory 300 is still kept blocked from being separated from the mounting sleeve 11, so that the support accessory 300 and the medical power handle 100 are still in a locking state;
When the lock sleeve 13 is rotated to the fully unlocked position, the first axial limiting part 132 of the lock sleeve 13 and the second axial limiting part 312 of the support accessory 300 can be staggered in the circumferential direction, so that the support accessory 300 can be axially separated from or inserted into the mounting sleeve 11, and the support accessory 300 and the medical power handle 100 are unlocked.
In addition, in this example, two second guiding grooves 131 are disposed opposite to each other on the lock sleeve 13 (see fig. 16), correspondingly, two first guiding grooves 111 are disposed opposite to each other on the mounting sleeve 11 (see fig. 15), two first axial limiting portions 132 are disposed opposite to each other on the lock sleeve 13 (see fig. 15), two second axial limiting portions 312 are disposed opposite to each other on the support accessory 300 (see fig. 22), two first circumferential limiting portions 112 are disposed opposite to each other on the lock sleeve 13, two second circumferential limiting portions 311 are disposed opposite to each other on the support accessory 300 (see fig. 22), the center line of the first circumferential limiting portions 112 (in this example, the outer flat sides) on the same side of the mounting sleeve 11 is collinear with the center line of the first guiding grooves 111, that is, the center line of the first circumferential limiting portions 112 is collinear with the half locking groove portions 111b of the first guiding grooves 111, the center connecting lines of the two second guiding grooves 131 on the lock sleeve 13 and the center connecting lines of the two first axial limiting portions 132 have a set angle (in this example, 45 °), and the relative position of the second guiding grooves 131 on the sleeve 13 and the first axial limiting portions 132 are regulated.
Referring to fig. 4, it can be understood that a mounting gap for inserting the support accessory 300 is provided between the lock sleeve 13 and the mounting sleeve 11, the mounting gap has a front opening, the first circumferential limit portion 112 is disposed on an outer wall of the mounting sleeve 11, and the first axial limit portion 132 is disposed on an inner wall of the lock sleeve 13. Specifically, the first circumferential limiting portion 112 is located on the outer wall of the mounting sleeve 11 to be matched with the second circumferential limiting portion 311 located on the inner wall of the supporting sleeve 310, and the first axial limiting portion 132 is located on the inner wall of the locking sleeve 13 to be matched with the second axial limiting portion 312 located on the outer wall of the supporting sleeve 310. The front end inner wall of the lock sleeve 13 and the circumferential outer wall of the mounting sleeve 11 are provided with mounting gaps, when the support accessory 300 is connected with the medical power handle 100, the tail end of the support accessory 300 is at least partially inserted into the mounting gaps, so that not only is enough insertion space provided for the tail end of the support accessory 300, but also smoothness in rotation of the lock sleeve 13 is ensured, the problem of clamping stagnation or damage caused by too small gaps is avoided, the contact area between connecting parts is increased, the connection strength between the support accessory 300 and the medical power handle 100 is enhanced, the connection stability is improved in a physical embedding manner, and the lock sleeve 13 can lock or unlock the support accessory 300 more effectively in rotation.
It should be noted that, in the first axial limiting portion 132 and the second axial limiting portion 312, one of the limiting portions is an annular limiting portion provided with an insertion notch 312a (see fig. 20), the insertion notch 312a extends from one side of the annular limiting portion to penetrate through the other side of the annular limiting portion along the axial direction, and when the lock sleeve 13 is in the fully unlocked position, the other limiting portion can pass through the insertion notch 312a along the axial direction, so that the medical power handle 100 and the support accessory 300 can be separated from or inserted into each other.
In this example, the first axial limiting portion 132 of the lock sleeve 13 is a protruding portion, the second axial limiting portion 312 of the support accessory 300 is an annular limiting portion having a plugging notch 312a, and when the lock sleeve 13 is in the fully unlocked position, the first axial limiting portion 132 of the lock sleeve 13 is aligned with the plugging notch 312a and can axially pass through the plugging notch 312a of the annular limiting portion, so that the support accessory 300 can be separated from or plugged into the mounting sleeve 11. When the lock sleeve 13 is rotated to the full locking position, the first axial limiting portion 132 of the lock sleeve 13 can be screwed into the annular limiting portion from the insertion notch 312a, and the support accessory 300 is limited to move axially and cannot be pulled out. When the sleeve 13 is rotated to the half-lock position, the first axial stop 132 of the sleeve 13 remains within the annular stop, and the support accessory 300 is restrained from axial movement and cannot be disengaged.
In this example, two second axial limiting portions 312 (in this example, annular limiting portions having insertion notches 312 a) of the support accessory 300 are symmetrically disposed, and the center lines of the two second circumferential limiting portions 311 (in this example, inner flat sides) are perpendicular to the center lines of the insertion notches 312a of the two second axial limiting portions 312 (see fig. 22), and accordingly, two first axial limiting portions 132 (protruding portions) of the lock sleeve 13 are symmetrically disposed, so that the stress balance of the second axial limiting portions 312 of the support accessory 300 and the first axial limiting portions 132 (protruding portions) of the lock sleeve 13 can be ensured, so that locking and unlocking are more reliable and stable.
The gear adjusting process of the medical power handle 100 is as follows:
When the lock sleeve 13 is rotated to the full unlocking position, the gear locking member 18 is made to enter the full unlocking groove portion 111a, the sliding sleeve 14 is close to the distal end of the power transmission member 12, the sliding sleeve 14 is pushed by the moving sleeve 15 to completely expose the locking member mounting hole 122, the tool locking member 17 can freely move radially and the tool 200 can be freely inserted or pulled out, and at this time, the insertion notch 312a of the second axial limiting portion 312 (annular limiting portion with the insertion notch 312 a) of the support accessory 300 is aligned with the first axial limiting portion 132 (protruding portion in this example) of the lock sleeve 13, and the second circumferential limiting portion 311 (inner flat side in this example) of the support accessory 300 is matched with the first circumferential limiting portion 112 (outer flat side in this example) of the mounting sleeve 11 to limit the circumferential rotation of the support accessory 300, but the support accessory 300 can be freely inserted or pulled out in the axial direction;
When the lock sleeve 13 is rotated to the half locking position after the cutter 200 and the support accessory 300 are inserted into the half locking position, the gear locking member 18 is made to enter the half locking groove part 111b, the movable sleeve 15 is moved towards the proximal end of the medical power handle 100 under the action of the gear locking member 18, correspondingly, the sliding sleeve 14 is also moved towards the proximal end of the medical power handle 100 under the action of the sliding sleeve elastic member 22, but the sliding sleeve 14 does not cover the locking member mounting hole 122, the cutter locking member 17 can still freely move radially, and the cutter 200 can still be freely inserted or pulled out, at this time, the first axial limiting part 132 (protruding part) on the lock sleeve 13 is shifted into the annular limiting part from the inserting notch 312a of the second axial limiting part 312 (the annular limiting part with the inserting notch 312 a) of the support accessory 300, and the support accessory 300 cannot be pulled out;
When the lock sleeve 13 is continuously rotated to the full locking position, the gear locking member 18 is made to enter the full locking groove portion 111c, the movable sleeve 15 is moved to abut against the second bearing 21, the sliding sleeve 14 is moved to cover the locking member mounting hole 122 under the action of the sliding sleeve elastic member 22, the tool locking member 17 is pressed inwards to enter the locking groove 210 of the tool 200 so as to lock the tool 200, at this time, the first axial limiting portion 132 on the lock sleeve 13 is still located in the second axial limiting portion 312 (annular limiting portion) of the support accessory 300, that is, the support accessory 300 is still in the locking state, and thus, the tool 200 and the support accessory 300 are both in the locking state, and the medical power handle 100 can be operated normally.
It should be noted that, since the first guide groove 111 on the mounting sleeve 11 is rotated right, the locking process is to rotate the lock sleeve 13 clockwise, and the unlocking process is to rotate the lock sleeve 13 counterclockwise. In other embodiments, if the first guide groove 111 on the mounting sleeve 11 is left-handed, the locking process is to rotate the sleeve 13 counterclockwise, and the unlocking process is to rotate the sleeve 13 clockwise.
Based on the same conception, the application also provides a medical kit comprising the medical power handle 100 and the supporting accessory 300 which are matched, wherein the medical power handle 100 is the medical power handle 100.
Wherein the support accessory 300 includes a support sleeve 310, and the support sleeve 310 is connected with the mounting sleeve 11 and the lock sleeve 13, respectively, when the lock sleeve 13 simultaneously locks the cutter 200 and the support accessory 300.
In summary, according to the medical power handle 100 and the medical kit provided by the invention, the locking or unlocking actions of the cutter 200 and the support accessory 300 and the medical power handle 100 can be integrated together by rotating the lock sleeve 13, when the support accessory 300 and the cutter 200 are required to be simultaneously unlocked, or the cutter 200 is required to be independently unlocked or locked, the different connection states of the cutter 200 and the support accessory 300 and the handle assembly can be realized only by switching the lock sleeve 13 in different gears, the requirements of operators on different working conditions can be met, the structure is simple, the operation is convenient, the operation efficiency is improved, and when the cutter 200 is required to be independently replaced, the locking of the support accessory 300 is not influenced, and the time cost for replacing the cutter 200 is saved.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510234815.4A CN119908801A (en) | 2025-02-28 | 2025-02-28 | Medical power handles and medical kits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510234815.4A CN119908801A (en) | 2025-02-28 | 2025-02-28 | Medical power handles and medical kits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119908801A true CN119908801A (en) | 2025-05-02 |
Family
ID=95505745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510234815.4A Pending CN119908801A (en) | 2025-02-28 | 2025-02-28 | Medical power handles and medical kits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119908801A (en) |
-
2025
- 2025-02-28 CN CN202510234815.4A patent/CN119908801A/en active Pending
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