CN114569203B - Ultrasonic guided puncture device - Google Patents
Ultrasonic guided puncture device Download PDFInfo
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- CN114569203B CN114569203B CN202210187390.2A CN202210187390A CN114569203B CN 114569203 B CN114569203 B CN 114569203B CN 202210187390 A CN202210187390 A CN 202210187390A CN 114569203 B CN114569203 B CN 114569203B
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- 239000000523 sample Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 52
- 230000035515 penetration Effects 0.000 claims description 14
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The invention relates to the technical field of venipuncture instruments, and discloses an ultrasonic guided puncture device; the ultrasonic guided puncture device of the present invention comprises: the ultrasonic probe comprises a mounting frame, a sliding mounting seat and a scale mark, wherein one end of the mounting frame can be mounted on the ultrasonic probe, the mounting frame is provided with the sliding mounting seat and the scale mark, the sliding mounting seat is slidably arranged on the mounting frame, and the scale mark is parallel to the sliding direction of the sliding mounting seat; the guide device is arranged on the sliding mounting seat and used for guiding the puncture needle to puncture; the depth pointer is arranged on the sliding mounting seat and used for indicating the reading of the scale mark, the reading of the scale mark corresponds to the guiding device, and the theoretical puncture depth is set when the sliding mounting seat is positioned at different positions of the mounting frame; and the locking device can lock the sliding mounting seat on the mounting frame. The puncture depth of the guiding puncture needle can be adjusted, and the guiding requirements of different puncture depths are met.
Description
Technical Field
The invention relates to the technical field of venipuncture instruments, in particular to an ultrasonic guided puncture device.
Background
Ultrasonic guided puncture is a technology developed on the basis of ultrasonic imaging to meet clinical diagnosis and treatment requirements, pathological tissues in a patient can be conveniently extracted or medicines can be injected into a target point (such as tumor, nerve, blood vessel and the like) in the patient through a puncture needle, and a puncture adapter is a positioning structure device used for fixing the ultrasonic probe to provide accurate puncture angle and distance for the puncture needle.
The penetration angle and penetration depth that conventional penetration adapters can provide are generally fixed, and thus many gauges of penetration adapters are required to be stock. Meanwhile, because the theoretical puncture depth of each puncture adapter is fixed, the puncture adapter with the theoretical puncture depth equal to the target value is generally difficult to select, so that the operation difficulty of venipuncture is increased, and the skill requirement on operators is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an ultrasonic guided puncture device, wherein the puncture depth of a guided puncture needle can be adjusted, and the guiding requirements of different puncture depths are met.
To achieve the above object, an ultrasound guided puncture device of the present invention comprises:
the ultrasonic probe comprises a mounting frame, wherein one end of the mounting frame can be mounted on the ultrasonic probe, a sliding mounting seat and scale marks are arranged on the mounting frame, the sliding mounting seat is slidably arranged on the mounting frame, and the scale marks are parallel to the sliding direction of the sliding mounting seat;
the guide device is arranged on the sliding mounting seat and used for guiding the puncture needle to puncture;
The depth pointer is arranged on the sliding mounting seat and used for indicating the reading of the scale mark, the reading of the scale mark corresponds to the guiding device, and the theoretical puncture depth is set when the sliding mounting seat is positioned at different positions of the mounting frame;
And the locking device can lock the sliding mounting seat on the mounting frame.
The sliding mounting seat slides to change the distance between the distance of the guiding device and the ultrasonic probe, when the puncture angle provided by the guiding device is unchanged, the theoretical depth provided by the guiding device is linearly related to the sliding distance of the sliding mounting seat, the depth pointer slides along with the sliding mounting seat to directly indicate the theoretical puncture depth provided by the device, and the theoretical puncture depth can be adjusted according to the needs of the puncture needles, so that the guiding requirements of different puncture depths are met.
In one embodiment, the sliding mounting seat is further provided with a rotating arm and an angle adjusting mechanism, the middle part of the rotating arm is rotatably arranged on the sliding mounting seat, the guiding device is arranged on one end of the rotating arm, and the other end of the rotating arm is connected with the angle adjusting mechanism; the angle adjusting mechanism can enable the rotating arm and the sliding mounting seat to keep different included angles, and enable the guiding device to correspond to different puncture angles; the scale marks are arranged in a plurality of groups, and each group of scale marks is arranged in one-to-one correspondence with each puncture angle of the guiding device.
The angle adjusting mechanism changes the included angle between the rotating arm and the sliding mounting seat, so that the guiding device can provide different puncture angles, and meanwhile, the depth pointer is simple and convenient to operate according to the theoretical puncture depth provided by the corresponding scale mark direct indicating device.
In one embodiment, the angle adjusting mechanism comprises a rotating supporting seat and a pressing device, wherein the rotating supporting seat is rotatably arranged on the sliding mounting seat, a plurality of supporting parts are arranged on the rotating supporting seat, and the supporting parts are arranged around the rotating shaft line of the rotating supporting seat; the rotating support seat rotates to enable the rotating arm to be abutted with any support part, and the rotating arm and the sliding mounting seat form different included angles; one end of the pressing device is connected with the sliding mounting seat, the other end of the pressing device is connected with the rotating arm, and the pressing device can provide pressing force to enable the rotating arm to be in abutting connection with any supporting portion.
The rotating support seat rotates to support the rotating arm through different support parts, so that the rotating arm and the sliding installation seat form different included angles, the puncture angle is changed, and the pressing device enables the rotating arm to keep the included angle with the sliding installation seat.
In one embodiment, the support part can be abutted with one end of the rotating arm far away from the guiding device, a strip-shaped through hole is formed in one end of the rotating arm far away from the guiding device, and the strip-shaped through hole extends along the axial direction of the rotating arm; the pressing device comprises a connecting rod and a pressing block, one end of the connecting rod is rotatably arranged on the sliding mounting seat, the rotating axis of the connecting rod is parallel to the rotating axis of the rotating arm, the other end of the connecting rod is slidably inserted into and penetrates through the strip-shaped through hole, and the pressing block is screwed and installed on one end of the connecting rod penetrating through the strip-shaped through hole and presses the rotating arm on the supporting portion.
The connecting rod passes the bar through-hole after the installation briquetting be convenient for compress tightly the rotor arm, cooperates with the bar through-hole simultaneously, prevents that the rotor arm from taking place to deflect, improves the stability that the support portion supported the rotor arm.
In one embodiment, the middle part of the rotating arm is bent, the rotating arm is far away from one end of the guiding device, the rotating arm deviates from the axis of one end of the rotating arm, which is provided with the guiding device, and is bent towards the sliding mounting seat, and the strip-shaped through hole extends along the axial direction of the corresponding end; one surface of the rotating arm facing the sliding mounting seat is abutted with the supporting part.
The support height of the support portion is convenient to reduce when the rotating arm is bent, the stability of support is improved, meanwhile, when the compressing device compresses the rotating arm, the included angle between the connecting rod and the sliding mounting seat is increased, the compressing force of the compressing device to the rotating arm is reduced in the direction of the compressing force and the included angle in the axial direction of the connecting rod, and the compressing effect of the connecting rod is improved.
In one embodiment, the mounting frame is further provided with a rotatable scale shaft, and the scale shaft is parallel to the sliding direction of the sliding mounting seat; the scale marks are arranged on the scale shaft, the scale marks are arranged at intervals along the circumferential direction of the scale shaft, and the scale marks extend along the axial direction of the scale shaft; the rotary supporting seat is in transmission connection with the scale shaft, the rotary supporting seat rotates to enable the supporting portion to be in butt joint with the rotary arm, the scale shaft can be rotated, and the corresponding scale mark is turned to the depth pointer.
The scale shaft rotates along with the rotating support seat, so that the depth pointer automatically points to the scale mark corresponding to the puncture angle, the puncture depth provided by the device is conveniently confirmed, and the puncture depth provided by the error reading prevention device is placed.
In one embodiment, the sliding mounting seat is further provided with a transmission rotating block, the rotating axis of the transmission rotating block is parallel to the rotating axis of the rotation supporting seat, and the transmission rotating block is in transmission connection with the rotation supporting seat; the mounting frame is also provided with a transmission shaft parallel to the scale shaft; the transmission shaft is rotatably arranged on the mounting frame and slidably penetrates through the transmission rotating block, the transmission shaft can synchronously rotate along with the transmission rotating block, and the transmission shaft is in transmission connection with the scale shaft.
The rotation supporting seat drives the scale shaft to drive through the transmission rotating block and the transmission shaft in sequence, so that the influence of sliding of the sliding installation seat on the scale shaft is avoided, and meanwhile, the transmission rotating block is prevented from shielding the scale marks.
In one embodiment, the guiding device is in an openable and closable clamp structure, the guiding device comprises a first clamp arm, a second clamp arm and an elastic piece, the first clamp arm and the second clamp arm are mutually rotatably arranged to form the clamp structure, two ends of the elastic piece are respectively connected with the first clamp arm and the second clamp arm, one end of the first clamp arm and one end of the second clamp arm are mutually closed, and the clamp structure is closed; the first clamping arm and the second clamping arm are respectively provided with a guide groove at one end which is close to each other, and the two guide grooves are oppositely arranged and combined to form a guide hole for guiding the puncture needle.
The guiding device is in a clamping structure, so that the puncture needle can be loosened and removed after the puncture needle completes puncture, and the risk of injury to a human body when the guiding device is removed is reduced.
In one embodiment, the first clamping arm and the second clamping arm are respectively and rotatably arranged on the sliding mounting seat directly or respectively and rotatably arranged on the rotating arm, and sector gears are respectively arranged on the first clamping arm and the second clamping arm and are meshed with each other, so that the first clamping arm and the second clamping arm can be synchronously opened or closed.
The first clamping arm and the second clamping arm are synchronously opened and simultaneously loosened from the two sides of the puncture needle, and the operation is simple and convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
Fig. 1 is a schematic perspective view of an ultrasound guided puncturing device according to an embodiment of the present invention;
FIG. 2 is a front partial cross-sectional view (FIG. 3, section A-A) of the ultrasound guided lancing device shown in FIG. 1;
FIG. 3 is a view B-B as shown in FIG. 2;
FIG. 4 is a top view of the ultrasound guided lancing device shown in FIG. 2;
FIG. 5 is a schematic view of the working principle of the ultrasound guided lancing device shown in FIG. 1;
Reference numerals:
1-mounting frame, 11-scale shaft, 111-scale line, 12-transmission shaft and 13-sliding guide rod;
2-sliding mounting seat, 21-transmission rotating block, 22-depth pointer, 23-rotating arm and 231-bar-shaped through hole,
24-Angle adjusting mechanism, 241-rotary supporting seat, 2411-supporting part, 242-compressing device, 2421-connecting rod, 2422-pressing block;
3-guiding means, 31-first clamping arm, 32-second clamping arm, 33-elastic member, 34-guiding groove, 35-sector gear;
4-locking device, 5-ultrasonic probe.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application. It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. In the description of the present application, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The ultrasonic guided puncture generally adopts a fixed angle needle insertion method, that is, a puncture needle is guided by an ultrasonic probe to penetrate a target tissue from the surface layer of skin at a certain angle at a puncture point at a certain distance from the ultrasonic probe. The distance between the crossing point of the detection direction of the ultrasonic probe and the puncturing direction of the puncturing needle and the skin surface layer is the puncturing depth. The theoretical penetration depth of the penetration adapter (H shown in fig. 5), i.e., the theoretical distance from the intersection point of the penetration direction of the penetration needle under the guidance of the penetration adapter and the detection direction of the ultrasonic probe to the skin surface layer.
Referring to fig. 1 to 5, an ultrasonic guided puncture device in an embodiment includes a mounting frame 1, a sliding mounting seat 2, a guiding device 3, a depth pointer 22 and a locking device 4, wherein the puncture depth of a guided puncture needle can be adjusted to meet the guiding requirements of different puncture depths.
Referring to fig. 1 and 2, in particular, one end of a mounting bracket 1 can be mounted to an ultrasonic probe 5. The mounting frame 1 is provided with a sliding mounting seat 2 and graduation marks 111. The sliding mounting seat 2 is slidably arranged on the mounting frame 1. The graduation marks 111 are provided parallel to the sliding direction of the slide mount 2. The mounting frame 1 is used for supporting and mounting the rest of the components and is connected with the ultrasonic probe 5 so that the whole device is mounted on the ultrasonic probe 5. The ultrasonic probe 5 may be mounted to the ultrasonic probe 5 by an existing bayonet structure, or other structure. The sliding direction of the sliding mounting seat 2 is perpendicular to or forms a certain included angle with the detection direction of the ultrasonic probe 5. The extending direction of the graduation marks 111 is parallel to the sliding direction of the slide mount 2. In one embodiment, the mounting frame 1 is provided with a sliding guide rod 13, the axial direction of the sliding guide rod 13 is perpendicular to the detection direction of the ultrasonic probe 5, and the sliding mounting seat 2 is slidably sleeved on the sliding guide rod 13.
The guiding device 3 is arranged on the sliding mounting seat 2 and is used for guiding the puncture needle to puncture. The guiding means 3 provides a passage for the puncture needle to puncture directionally. The guiding device 3 moves along with the sliding mounting seat 2, so that the distance between the puncture needle and the ultrasonic probe 5 when the puncture needle passes through the probe center position of the ultrasonic probe 5 is changed. The theoretical penetration depth of the device is adjusted.
Referring to fig. 5, a depth pointer 22 is disposed on the sliding mount 2 for indicating the reading of the graduation marks 111. The reading of the graduation mark 111 corresponds to the guiding device 3, and the theoretical penetration depth of the guiding is set when the sliding mounting seat 2 is positioned at different positions of the mounting frame 1. When the sliding mounting seat 2 slides on the mounting frame 1, the sliding distance s of the sliding mounting seat 2 is in linear correlation with the change amount h of the theoretical penetration depth of the device. For example, when the sliding direction of the slide mount 2 is perpendicular to the detection direction of the ultrasonic probe 5, h=s·tan α if the puncture angle is fixed to α. When the sliding direction of the sliding mount 2 forms other angles with the detection direction of the ultrasonic probe 5, it can be similarly known that h is linearly related to s. The sliding mounting seat 2 slides to change the distance between the distance of the guiding device 3 and the ultrasonic probe 5, when the puncture angle provided by the guiding device 3 is unchanged, the theoretical depth provided by the guiding device 3 is linearly related to the sliding distance of the sliding mounting seat 2, the depth pointer 22 slides along with the sliding mounting seat 2 to directly indicate the theoretical puncture depth provided by the device, and the theoretical puncture depth can be adjusted according to the needs of puncture needles, so that the guiding requirements of different puncture depths are met.
The locking means 4 are able to lock the sliding mount 2 to the mounting 1. Specifically, the locking device 4 is used to lock the sliding mount 2 and the mounting frame 1. In one embodiment, the locking device 4 is a locking screw, and the locking screw is screwed on the sliding mounting seat 2, and the locking screw can be abutted against the sliding guide rod 13 to lock the sliding guide rod 13 and the sliding mounting seat 2. It will be appreciated that the locking means 4 may also be other fixing structures.
Referring to fig. 2 to 4, in an embodiment, the sliding mount 2 is further provided with a rotating arm 23 and an angle adjusting mechanism 24. The middle part of the rotating arm 23 is rotatably arranged on the sliding mounting seat 2. The guide 3 is provided on one end of the rotating arm 23. The other end of the rotating arm 23 is connected to an angle adjusting mechanism 24. The angle adjusting mechanism 24 can enable the rotating arm 23 and the sliding mounting seat 2 to keep different included angles, and enable the guiding device 3 to correspond to different puncture angles. The graduation marks 111 are arranged in a plurality of groups, and each group of graduation marks 111 is arranged in one-to-one correspondence with each puncture angle of the guiding device 3. The angle adjusting mechanism 24 changes the included angle between the rotating arm 23 and the sliding mounting seat 2, so that the guiding device 3 can provide different puncture angles, and meanwhile, the depth pointer 22 directly indicates the theoretical puncture depth provided by the device according to the corresponding scale line 111, so that the operation is simple and convenient.
Specifically, the angle adjustment mechanism 24 includes a rotation support base 241 and a pressing device 242. The rotation support base 241 is rotatably provided on the slide mount 2. The rotary support base 241 is provided with a plurality of support portions 2411, and the support portions 2411 are spaced apart around the rotation axis of the rotary support base 241. The rotation of the rotation support base 241 can enable the rotation arm 23 to abut against any support portion 2411, and the rotation arm 23 and the sliding mounting base 2 form different included angles. One end of the pressing device 242 is connected with the sliding mounting seat 2, the other end of the pressing device 242 is connected with the rotating arm 23, and the pressing device 242 can provide pressing force to enable the rotating arm 23 to be kept in abutting contact with any supporting portion 2411. Specifically, the rotary support base 241 has an annular structure, and a plurality of protrusions serving as support portions 2411 are disposed on an outer sidewall of the rotary support base 241. The protruding heights of the protrusions are different, so that when the supporting portions 2411 are different from the rotating arms 23, the included angles between the rotating arms 23 and the sliding mounting base 2 are different, and the puncturing direction is changed. The rotary support base 241 rotates to support the rotary arm 23 through different support portions 2411, so that the rotary arm 23 forms different included angles with the sliding mounting base 2, the puncture angle is changed, and the pressing device 242 keeps the included angle between the rotary arm 23 and the sliding mounting base 2. In one embodiment, the support portion 2411 can abut against an end of the rotating arm 23 remote from the guide device 3. The end of the rotating arm 23 remote from the guide 3 is provided with a bar-shaped through hole 231, and the bar-shaped through hole 231 extends in the axial direction of the rotating arm 23. The pressing device 242 includes a connection rod 2421 and a pressing block 2422. One end of the connecting rod 2421 is rotatably disposed on the sliding mounting seat 2, and the rotation axis of the connecting rod 2421 is parallel to the rotation axis of the rotating arm 23. The other end of the connection rod 2421 is slidably inserted into and passed through the bar-shaped through hole 231. The pressing block 2422 is screw-mounted on one end of the connection rod 2421 passing through the bar-shaped through hole 231, and presses the rotation arm 23 against the supporting portion 2411. The connecting rod 2421 passes through the bar-shaped through hole 231 and then is provided with the pressing block 2422 so as to be convenient for pressing the rotating arm 23, and is matched with the bar-shaped through hole 231, so that the rotating arm 23 is prevented from deflecting, and the stability of the supporting part 2411 for supporting the rotating arm 23 is improved. In one embodiment, the middle portion of the rotating arm 23 is bent. The end of the swivel arm 23 remote from the guide means 3 is bent towards the slide mount 2, offset from the axis of the end of the swivel arm 23 where the guide means 3 are provided. The bar-shaped through holes 231 extend in the axial direction of the corresponding ends. One surface of the pivot arm 23 facing the slide mount 2 abuts on the support portion 2411. The rotating arm 23 is bent to be convenient for reducing the supporting height of the supporting part 2411, improving the supporting stability, and increasing the included angle between the connecting rod 2421 and the sliding mounting seat 2 when the pressing device 242 presses the rotating arm 23, so that the included angle between the direction of the pressing force of the pressing device 242 on the rotating arm 23 and the axial direction of the connecting rod 2421 is reduced, and the pressing effect of the connecting rod 2421 is improved. specifically, the abutment portion of the support portion 2411 and the rotating arm 23 is correspondingly disposed as a plane parallel to both the rotation axis of the rotating arm 23 and the rotation axis of the rotating support base 241, so as to avoid rotation of the rotating support base 241 when the support portion 2411 abuts against the rotating arm 23.
In one embodiment, the mounting frame 1 is further provided with a rotatable scale shaft 11. The scale shaft 11 is disposed parallel to the sliding direction of the slide mount 2. The graduation marks 111 are provided on the graduation shaft 11, the graduation marks 111 are provided at intervals along the circumferential direction of the graduation shaft 11, and the graduation marks 111 extend along the axial direction of the graduation shaft 11. The rotary support seat 241 is in transmission connection with the scale shaft 11. The rotation support base 241 rotates to bring the support portion 2411 into contact with the rotation arm 23, thereby rotating the scale shaft 11 and turning the corresponding scale line 111 to the depth pointer 22. Specifically, when each support portion 2411 is rotated to come into contact with the rotation arm 23, the depth pointer 22 is turned corresponding to the scale line 111. The scale shaft 11 rotates along with the rotation supporting seat 241, so that the depth pointer 22 automatically points to the scale line 111 corresponding to the puncture angle, thereby facilitating the confirmation of the puncture depth provided by the device and the placement of the puncture depth provided by the error reading prevention device. In one embodiment, the sliding mounting seat 2 is further provided with a transmission rotating block 21. The rotation axis of the transmission rotation block 21 is parallel to the rotation axis of the rotation support seat 241. The transmission rotating block 21 is in transmission connection with the rotation supporting seat 241. The mounting frame 1 is also provided with a transmission shaft 12 parallel to the scale shaft 11. The transmission shaft 12 is rotatably arranged on the mounting frame 1 and slidably penetrates through the transmission rotating block 21, and the transmission shaft 12 can synchronously rotate along with the transmission rotating block 21. The transmission shaft 12 is in transmission connection with the scale shaft 11. Specifically, the transmission rotating block 21 is connected with the rotation supporting seat 241 and the transmission shaft 12 is connected with the scale shaft 11 through gear transmission or belt transmission or chain transmission. The rotation support seat 241 drives the scale shaft 11 to drive sequentially through the transmission rotating block 21 and the transmission shaft 12, so that the influence of sliding of the sliding installation seat 2 on the scale shaft 11 is avoided, and meanwhile, the transmission rotating block 21 is prevented from shielding the scale lines 111. In one embodiment, the transmission shaft 12 is a spline shaft, and the transmission rotating block 21 is provided with spline grooves penetrating through the spline shaft, and the spline grooves are arranged corresponding to the transmission shaft 12. The transmission rotating block 21 and the transmission shaft 12 can slide relatively and rotate synchronously.
In one embodiment, the guide device 3 has an openable and closable clip structure. The guiding device 3 comprises a first clamping arm 31, a second clamping arm 32 and an elastic member 33, wherein the first clamping arm 31 and the second clamping arm 32 are mutually rotatably arranged to form a clamping structure. The two ends of the elastic member 33 are respectively connected with the first clamping arm 31 and the second clamping arm 32, and the clamping structure is closed by making one end of the first clamping arm 31 and one end of the second clamping arm 32 close to each other. The first clamping arm 31 and the second clamping arm 32 are respectively provided with a guide groove 34 at one end which is close to each other, and the two guide grooves 34 are oppositely arranged and combined to form a guide hole for guiding the puncture needle. The guiding device 3 is in a clamping structure, so that the puncture needle can be loosened after the puncture needle completes puncturing, the guiding device 3 is removed, and the risk of injury to a human body when the guiding device 3 is removed is reduced. Specifically, the middle parts of the first clamping arm 31 and the second clamping arm 32 are respectively rotatably arranged, and the elastic member 33 is connected with one end of the first clamping arm 31 and one end of the second clamping arm 32 and provides elastic supporting force to enable the other ends of the first clamping arm 31 and the second clamping arm 32 to be close to each other. In one embodiment, the elastic member 33 is a coil spring. It will be appreciated that the resilient member 33 may also be a resilient structural member made of rubber or other material. In one embodiment, the first clamping arm 31 and the second clamping arm 32 are respectively rotatably disposed directly on the sliding mount 2 or respectively rotatably disposed on the rotating arm 23. The first clamping arm 31 and the second clamping arm 32 are respectively provided with a sector gear 35, and the sector gears 35 are mutually meshed, so that the first clamping arm 31 and the second clamping arm 32 can be synchronously opened or closed. Specifically, the module and the pitch radius of the sector gear 35 are equal, and the rotation axes of the sector gear 35 are respectively coincident with the rotation axes of the first clamp arm 31 and the second clamp arm 32. The first clamping arm 31 and the second clamping arm 32 are synchronously opened and released from the two sides of the puncture needle simultaneously, and the operation is simple and convenient.
According to the ultrasonic guided puncture device in the above technical scheme, the sliding mounting seat 2 slides to change the distance between the distance of the guiding device 3 and the ultrasonic probe 5, when the puncture angle provided by the guiding device 3 is unchanged, the theoretical depth provided by the guiding device 3 is linearly related to the sliding distance of the sliding mounting seat 2, the depth pointer 22 slides along with the sliding mounting seat 2 to directly indicate the theoretical puncture depth provided by the device, and the theoretical puncture depth can be adjusted according to the needs of the puncture needles, so that the guiding requirements of different puncture depths are met.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (5)
1. An ultrasound guided puncturing device, comprising:
the ultrasonic probe comprises a mounting frame, wherein one end of the mounting frame can be mounted on the ultrasonic probe, a sliding mounting seat and scale marks are arranged on the mounting frame, the sliding mounting seat is slidably arranged on the mounting frame, and the scale marks are parallel to the sliding direction of the sliding mounting seat;
the guide device is arranged on the sliding mounting seat and used for guiding the puncture needle to puncture;
The depth pointer is arranged on the sliding mounting seat and used for indicating the reading of the scale mark, and the reading of the scale mark corresponds to the theoretical puncture depth setting of the guiding device guided by the sliding mounting seat at different positions of the mounting frame;
a locking device capable of locking the sliding mount to the mount;
The sliding mounting seat is also provided with a rotating arm and an angle adjusting mechanism, the middle part of the rotating arm is rotatably arranged on the sliding mounting seat, the guiding device is arranged at one end of the rotating arm, and the other end of the rotating arm is connected with the angle adjusting mechanism; the angle adjusting mechanism can enable the rotating arm and the sliding mounting seat to keep different included angles, and enable the guiding device to correspond to different puncture angles; the scale marks are arranged into a plurality of groups, and each group of scale marks is arranged in one-to-one correspondence with each puncture angle of the guiding device;
the angle adjusting mechanism comprises a rotary supporting seat and a pressing device, wherein the rotary supporting seat is rotatably arranged on the sliding mounting seat, a plurality of supporting parts are arranged on the rotary supporting seat, and the supporting parts are arranged around the interval of a rotating shaft of the rotary supporting seat; the rotating support seat rotates to enable the rotating arm to be abutted with any support part, and the rotating arm and the sliding mounting seat form different included angles; one end of the pressing device is connected with the sliding mounting seat, the other end of the pressing device is connected with the rotating arm, and the pressing device can provide pressing force to enable the rotating arm to be in abutting connection with any supporting part;
The mounting frame is also provided with a rotatable scale shaft, and the scale shaft is arranged parallel to the sliding direction of the sliding mounting seat; the scale marks are arranged on the scale shaft, the scale marks are arranged at intervals along the circumferential direction of the scale shaft, and the scale marks extend along the axial direction of the scale shaft; the rotary supporting seat is in transmission connection with the scale shaft, and rotates to enable the supporting part to be in abutting connection with the rotating arm, so that the scale shaft can be rotated to enable the corresponding scale line to be turned to the depth pointer;
The sliding mounting seat is also provided with a transmission rotating block, the rotating axis of the transmission rotating block is parallel to the rotating axis of the rotating supporting seat, and the transmission rotating block is in transmission connection with the rotating supporting seat; the mounting frame is also provided with a transmission shaft parallel to the scale shaft; the transmission shaft is rotatably arranged on the mounting frame and slidably penetrates through the transmission rotating block, the transmission shaft can synchronously rotate along with the transmission rotating block, and the transmission shaft is in transmission connection with the scale shaft.
2. The ultrasonic guided puncture device according to claim 1, wherein the support portion is capable of abutting against an end of the rotating arm away from the guide device, a strip-shaped through hole is provided on an end of the rotating arm away from the guide device, the strip-shaped through hole extending in an axial direction of the rotating arm; the pressing device comprises a connecting rod and a pressing block, one end of the connecting rod is rotatably arranged on the sliding mounting seat, the rotating axis of the connecting rod is parallel to the rotating axis of the rotating arm, the other end of the connecting rod is slidably inserted into and penetrates through the strip-shaped through hole, and the pressing block is screwed and installed on one end of the connecting rod penetrating through the strip-shaped through hole and presses the rotating arm on the supporting portion.
3. The ultrasonic guided penetration device of claim 2, wherein the middle portion of the rotating arm is bent, the rotating arm is away from one end of the guiding device, the rotating arm is deviated from the axis of the end of the rotating arm provided with the guiding device, the rotating arm is bent towards the sliding mounting seat, and the strip-shaped through hole extends along the axial direction of the corresponding end; one surface of the rotating arm facing the sliding mounting seat is abutted with the supporting part.
4. An ultrasound guided puncture device according to any one of claims 1 to 3, wherein the guiding device has an openable and closable clip structure, the guiding device comprises a first clip arm, a second clip arm and an elastic member, the first clip arm and the second clip arm are rotatably disposed with each other to form the clip structure, and two ends of the elastic member are respectively connected to the first clip arm and the second clip arm, and one end of the first clip arm and one end of the second clip arm are closed; the first clamping arm and the second clamping arm are respectively provided with a guide groove at one end which is close to each other, and the two guide grooves are oppositely arranged and combined to form a guide hole for guiding the puncture needle.
5. The ultrasonic guided penetration device of claim 4, wherein the first clamp arm and the second clamp arm are respectively and rotatably arranged on the sliding mounting seat or the rotating arm respectively, sector gears are respectively arranged on the first clamp arm and the second clamp arm, and the sector gears are meshed with each other, so that the first clamp arm and the second clamp arm can be synchronously opened or closed.
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| CN202210187390.2A CN114569203B (en) | 2022-02-28 | 2022-02-28 | Ultrasonic guided puncture device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211023010U (en) * | 2019-11-27 | 2020-07-17 | 王艳艳 | Novel ultrasonic guidance is with controllable puncture drawing liquid device |
| CN214805248U (en) * | 2021-10-13 | 2021-11-23 | 深圳市第二人民医院(深圳市转化医学研究院) | An ultrasonic probe puncture guide bracket |
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| CN201104895Y (en) * | 2007-11-16 | 2008-08-27 | 林彬 | B type ultrasonic detector puncture navigation apparatus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211023010U (en) * | 2019-11-27 | 2020-07-17 | 王艳艳 | Novel ultrasonic guidance is with controllable puncture drawing liquid device |
| CN214805248U (en) * | 2021-10-13 | 2021-11-23 | 深圳市第二人民医院(深圳市转化医学研究院) | An ultrasonic probe puncture guide bracket |
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