CN201432269Y - Quickly-connected torque handle - Google Patents
Quickly-connected torque handle Download PDFInfo
- Publication number
- CN201432269Y CN201432269Y CN2009201087755U CN200920108775U CN201432269Y CN 201432269 Y CN201432269 Y CN 201432269Y CN 2009201087755 U CN2009201087755 U CN 2009201087755U CN 200920108775 U CN200920108775 U CN 200920108775U CN 201432269 Y CN201432269 Y CN 201432269Y
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- Prior art keywords
- interface
- groove
- main body
- driven pulley
- driving wheel
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 208000002925 dental caries Diseases 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 4
- 239000007943 implant Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 108010048734 sclerotin Proteins 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010006514 bruxism Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a quickly-connected torque handle which comprises a main body and a connector. A screwdriver rod can be inserted into the connector; a driving pulley, a driven pulley, a disc spring and an adjusting nut are arranged in the main body in sequence; a driving shaft penetrates the components and is fixed with the driving pulley; at least one through groove is formed on the side wall of the connector in the front of the main body; a steel ball is accommodated in the through groove; the diameter of the notch of the through groove is smaller than that of the steel ball; aninsert is also arranged on the side wall of the connector opposite to the through groove; and a sliding sleeve is sleeved outside the connector, is in clasp joint with the connector, and can axially slide along the connector. The utility model has the advantages of novel and simple structure, convenient use and disinfection and low cost, can effectively and accurately control torque force, is suitable for screwdriver rods of multiple models and can quickly replace the screwdriver rods, thereby improving the operation efficiency.
Description
Technical field
The utility model relates to a kind of screwdriver handle, specifically a kind of controlled torsion, and can peg graft fast change the screwdriver bar connect the torsion handle soon.
Background technology
At present, often can use the screw that medical screwdriver is screwed implanting device in the bone surgery clinically.Because the particularity of its applied environment is very strict to the screw-down torque requirement of screw, can not be too big, can not be too little.Torsion is too big, might destroy implant or sclerotin; Torsion is too little, and implant is fixing not firm, is connected insecurely with bone, and possible postoperative loosening causes operative failure, also needs second operation, causes unnecessary misery to the patient.At present, that controls screw screws moment mainly by doctor's experience and feel, high to doctor's specification requirement, and this method easily causes error.
Those skilled in the art propose to control by the moment screwdriver moment that is screwed into of screw in order to overcome the problems referred to above.At present commercially available torsion screwdriver as shown in Figure 1, it is that screwdriver handle 7 awl bars 8 are fixedly connected.This torsion screwdriver can assist a physician to control in operation technique and screw moment, but still there is defective in it, and its defective is: 1. because its screwdriver handle 1 and screwdriver bar 2 are fixed for one, if strength is excessive or service time is long, the screwdriver bar easily bends; 2. the screwdriver head is a consumable accessory, and screwdriver bar and handle are fixed together, in case crewdriver attachment damages, whole screwdriver is just scrapped, and the cost of this medical screwdriver is than common screwdriver height, gets in touch and then makes the operation cost too high; 3. its screwdriver handle internal pressure spring is a cylindrical spring, and the adjustment moment error of moment of friction is bigger; 4. need to use instead the screwdriver bar of different model crewdriver attachment in the surgical procedure, therefore different screwdrivers all need be provided with handle, and not only cost is too high, and sterilization is got up also inconvenient.
In sum, at present at above-mentioned prior art problems, still need continue to improve screwdriver handle with low cost to obtain, easy to use, that torsion is controlled.
The utility model content
The purpose of this utility model is to provide a kind of can accurately control the screwdriver of screwing torsion, being applicable to multiple model, and can realize pegging graft fast connect the torsion handle soon.
To achieve these goals, invention thinking of the present utility model is, characteristics at clinical practice, at first solve the problem of handle torsion control, the utility model adopts the design of unidirectional grinding tooth between driving wheel and the driven pulley, by reconciling nut and then controlling frictional force between its two, when the torsion within using adjusting range is screwed screw, the sawtooth of its one way engagement can increase torsion effectively to be realized screwing, when being screwed to assigned address and can't further screwing, the characteristic that driven pulley is free to slide is skidded it on driving wheel, the doctor can learn to have arrived and screw terminal point this moment, need not to continue to screw.With realizing the fixedly purpose of screwdriver bar, and make steel ball can withdraw from and then realize the plug of screwdriver bar by steel ball and ending instead of inserting, thereby realized the technical scheme of the utility model the best by the design of axial sliding sleeve.
In order to realize the purpose of this utility model, the utility model adopts following concrete technical scheme:
A kind of torsion handle that connects soon, it comprises main body and interface, can plug the screwdriver bar in the described interface; Wherein, be provided with driving wheel, driven pulley, butterfly spring in the described main body successively and adjust nut, a driving shaft is arranged in the above-mentioned parts and with driving wheel and fixes; Driving wheel is provided with the unidirectional sawtooth that is meshed with the abutted surface of driven pulley, and driven pulley can be free to slide on driving shaft; Adjust between nut and the driven pulley and be provided with the butterfly spring;
Described body front part interface and main body are structure as a whole, and this interface sidewall is provided with at least one groove, and this groove is built-in with a steel ball, and groove mouth diameter is less than diameter of the steel ball; Also be provided with on the interface sidewall relative and insert with groove; This interface is arranged with a sliding sleeve outward, is equipped with three not connected cavitys between this sliding sleeve and the interface, is provided with spring in first cavity of end, and second cavity is located between first cavity and the groove, and this housing width is identical with the groove diameter; The 3rd cavity is used for the protuberance that ccontaining interface outer wall ring is established, and described sliding sleeve is by this protuberance and interface clasp joint, and sliding sleeve can endwisely slip along interface.
The above-mentioned torsion handle that connects soon wherein, is fixed by pin between described driving shaft and the driving wheel.
The above-mentioned torsion handle that connects soon, wherein, described driven pulley is provided with key, is provided with keyway in the described main body, and this key can slide in keyway.
Above-mentioned a kind of torsion handle that connects soon wherein, is provided with journal bearing in the described adjustment nut.
Above-mentioned a kind of torsion handle that connects soon, wherein, described driving wheel also connects a thrust bearing.
Above-mentioned a kind of torsion handle that connects soon, wherein, described driving shaft one end places the main body outside, can connect fourth type handle.
Advantage of the present utility model and benefit:
The one way engagement of driving wheel and driven pulley in the handle main body of the present utility model is adjusted frictional force between the two by adjusting nut, can control effectively and screw torsion.When screw does not reach assigned address, frictional force can help the user to screw fast between its two, when screw reaches the position and can't further screw, driving wheel maintains static, the excessive driven pulley that causes of torsion skids on driving wheel, the user can judge screw by this phenomenon and reach assigned address, stop to screw, avoided in the operation because torsion control is bad or the situation of excessive destruction implant that causes of torsion or sclerotin takes place, also avoid simultaneously screw to screw the implant that causes not in place and become flexible the situation of operative failure.The design of quick union makes the utility model be applicable to multiple screwdriver bar, has reduced medical screwdriver cost, makes things convenient for the preoperative and postoperative sterilization.The utility model meets the torsion adjusting range 1～4N.m of torsion handle soon, satisfies the clinical instructions for use of lockplate, cervical vertebra screw rod connector screw-down torque.During clinical use, driving shaft is with electric drill or connect handle soon and be connected fast, also can change the screwdriver bar as required fast, convenient clinical use.
Foregoing has illustrated the technical solution of the utility model and beneficial effect fully, below in conjunction with the drawings and specific embodiments the utility model is done further narration, so that the public is to having more deep understanding in the utility model, the embodiment of the specific embodiment is best technical scheme, and is not to restriction of the present utility model.
Description of drawings
Fig. 1 is the prior art schematic diagram;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 A is the utility model driving wheel front view;
Fig. 3 B is the utility model driving wheel vertical view;
Fig. 4 A is the utility model driven pulley front view;
Fig. 4 B is the utility model driven pulley vertical view.
The specific embodiment
Shown in Fig. 2,3A, 3B, 4A and 4B, a kind of torsion handle that connects soon, it comprises main body 1 and interface 2, can plug the screwdriver bar in the described interface 2; Wherein, be provided with driving wheel 11, driven pulley 12, butterfly spring 13 and adjust that nut 14, one driving shafts 15 are arranged in the above-mentioned parts and fixing in the main body 1 successively with driving wheel 11; The abutted surface of driving wheel 11 and driven pulley 12 is provided with wants the unidirectional sawtooth 111 and 121 that meshes, and driven pulley 12 can be free to slide on driving shaft 15; Adjust between nut 14 and the driven pulley 12 and be provided with butterfly spring 13;
Fixing between driving shaft 15 and the driving wheel 11 in the present embodiment by pin 5.
Adjust in the nut 14 and be provided with journal bearing 141.
Driving shaft 15 1 ends place main body 1 outside, can connect fourth type handle.
The utility model in use, driving wheel 11 and driven pulley 12 are wanted the sawtooth 111,121 that meshes, form the zigzag clutch.But the advantage unidirectional delivery torque of zigzag clutch can realize constant moment when just changeing, and can transmit very big moment during counter-rotating, realization torsion is controlled, when clinical use, adjust the pressure of dish spring 13 by adjusting nut 14, make between driving wheel 11 and the driven pulley 12 and form certain pressure.The doctor is screwed in the process, and during screw no show assigned address, torsion is constant, and during the stressed rotation of driving shaft 15, driving wheel 11 drives driven pulleys 12 and rotates.In case in-position, be that the moment of resistance is during greater than the moment of friction between driven pulley 12 and the driving wheel 11, skid between driven pulley 12 and the driving wheel 11, reach the purpose of constant moment, the doctor learnt that screwing puts in place and stopped to continue to screw this moment, had avoided implant and sclerotin owing to screw the situation of damage and take place.Because its sawtooth is unidirectional sawtooth, when moving back screw, torsion is constant, withdraws from fast, the situation of skidding can not occur.The utility model meets clinical needs.
Fast connection interface operation principle: sliding was overlapped 4 o'clock backward, the back screwdriver bar that puts in place can insert in the interface 2, spring 5 in first cavity 41 moves compression after with sliding sleeve 4, and this moment, steel ball 3 can outwards be retracted into second cavity 42, after the screwdriver bar inserts and installs to the position, unclamp sliding sleeve 4, spring 5 resiliences, steel ball 3 are crushed on screwdriver bar groove 21 places, because the groove mouth diameter of groove 21 is less than steel ball 3 diameters, steel ball 3 parts are protruded groove 21, play the effect of chucking screwdriver bar.Insert simultaneously and 22 withstand the screwdriver bar, prevent that the screwdriver bar from rotating in interface 2.
The utility model novel structure, simple, easy to use can be controlled torsion effectively accurately, and sterilization is convenient, and is with low cost, is applicable to polytypic screwdriver bar, and fast changeable screwdriver bar has improved operation efficient.
Claims (6)
1, a kind of torsion handle that connects soon, it comprises main body and interface, can plug the screwdriver bar in the described interface; It is characterized in that be provided with driving wheel, driven pulley, dish spring in the described main body successively and adjust nut, a driving shaft is arranged in the above-mentioned parts and with driving wheel and fixes; Driving wheel is provided with the unidirectional sawtooth that is meshed with the abutted surface of driven pulley, and driven pulley can be free to slide on driving shaft; Adjust between nut and the driven pulley and be provided with the dish spring;
Described body front part interface and main body are structure as a whole, and this interface sidewall is provided with at least one groove, and this groove is built-in with a steel ball, and groove mouth diameter is less than diameter of the steel ball; Also be provided with on the interface sidewall relative and insert with groove; This interface is arranged with a sliding sleeve outward, is equipped with three not connected cavitys between this sliding sleeve and the interface, is provided with spring in first cavity of end, and second cavity is located between first cavity and the groove, and this housing width is identical with the groove diameter; The 3rd cavity is used for the protuberance that ccontaining interface outer wall ring is established, and described sliding sleeve is by this protuberance and interface clasp joint, and sliding sleeve can endwisely slip along interface.
2, a kind of torsion handle that connects soon according to claim 1 is characterized in that, fixes by pin between described driving shaft and the driving wheel.
3, a kind of torsion handle that connects soon according to claim 1 is characterized in that described driven pulley is provided with key, is provided with keyway in the described main body, and this key can slide in keyway.
4, a kind of torsion handle that connects soon according to claim 1 is characterized in that, is provided with journal bearing in the described adjustment nut.
5, a kind of torsion handle that connects soon according to claim 1 is characterized in that described driving wheel also connects a thrust bearing.
6, a kind of torsion handle that connects soon according to claim 1 is characterized in that, described driving shaft one end places the main body outside, can connect fourth type handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201087755U CN201432269Y (en) | 2009-06-16 | 2009-06-16 | Quickly-connected torque handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201087755U CN201432269Y (en) | 2009-06-16 | 2009-06-16 | Quickly-connected torque handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201432269Y true CN201432269Y (en) | 2010-03-31 |
Family
ID=42051083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201087755U Expired - Lifetime CN201432269Y (en) | 2009-06-16 | 2009-06-16 | Quickly-connected torque handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201432269Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102038523A (en) * | 2010-08-31 | 2011-05-04 | 成都春江科技有限公司 | Backwards-turnable type hand surgery quick-assembling handle |
| CN103091815A (en) * | 2013-01-07 | 2013-05-08 | 四川大学 | Michelson interferometer stationary mirror friction wheel safety adjusting screw |
| TWI410307B (en) * | 2012-09-04 | 2013-10-01 | Tien I Ind Co Ltd | Holding sleeve and rod tool including the same, and fabrication methods thereof |
| CN104029158A (en) * | 2014-05-30 | 2014-09-10 | 杭州电子科技大学 | Torque protection safety chuck spanner |
| CN108393835A (en) * | 2017-02-08 | 2018-08-14 | C.& E.泛音有限公司 | Torque-release couplings for hand tools |
| CN110063782A (en) * | 2019-05-08 | 2019-07-30 | 天津正天医疗器械有限公司 | A kind of medical treatment electric drill torque handle |
| CN111067614A (en) * | 2019-12-30 | 2020-04-28 | 创美得医疗器械（天津）有限公司 | Novel adjustable torsion handle |
| CN111643231A (en) * | 2020-05-25 | 2020-09-11 | 天衍医疗器材有限公司 | Universal ratchet screwdriver capable of adjusting torque force |
| CN112402002A (en) * | 2020-11-26 | 2021-02-26 | 天衍医疗器材有限公司 | Universal accurate acetabular cup nail extractor |
| CN119679526A (en) * | 2024-12-16 | 2025-03-25 | 深圳央山医疗科技有限公司 | Thumb screws and surgical robots |
-
2009
- 2009-06-16 CN CN2009201087755U patent/CN201432269Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102038523A (en) * | 2010-08-31 | 2011-05-04 | 成都春江科技有限公司 | Backwards-turnable type hand surgery quick-assembling handle |
| TWI410307B (en) * | 2012-09-04 | 2013-10-01 | Tien I Ind Co Ltd | Holding sleeve and rod tool including the same, and fabrication methods thereof |
| CN103091815A (en) * | 2013-01-07 | 2013-05-08 | 四川大学 | Michelson interferometer stationary mirror friction wheel safety adjusting screw |
| CN104029158A (en) * | 2014-05-30 | 2014-09-10 | 杭州电子科技大学 | Torque protection safety chuck spanner |
| CN108393835A (en) * | 2017-02-08 | 2018-08-14 | C.& E.泛音有限公司 | Torque-release couplings for hand tools |
| CN110063782A (en) * | 2019-05-08 | 2019-07-30 | 天津正天医疗器械有限公司 | A kind of medical treatment electric drill torque handle |
| CN111067614A (en) * | 2019-12-30 | 2020-04-28 | 创美得医疗器械（天津）有限公司 | Novel adjustable torsion handle |
| CN111643231A (en) * | 2020-05-25 | 2020-09-11 | 天衍医疗器材有限公司 | Universal ratchet screwdriver capable of adjusting torque force |
| CN112402002A (en) * | 2020-11-26 | 2021-02-26 | 天衍医疗器材有限公司 | Universal accurate acetabular cup nail extractor |
| CN112402002B (en) * | 2020-11-26 | 2025-03-14 | 天衍医疗器材有限公司 | Universal precision acetabular cup nail remover |
| CN119679526A (en) * | 2024-12-16 | 2025-03-25 | 深圳央山医疗科技有限公司 | Thumb screws and surgical robots |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Keyi Bunn medical equipment science and Technology Co Ltd Assignor: Guo Qian Contract record no.: 2010990000801 Denomination of utility model: Quickly-connected torque handle Granted publication date: 20100331 License type: Exclusive License Record date: 20100930 |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING LIBEIER BIO-ENGINEERING INSTITUTE CO., LTD Free format text: FORMER OWNER: GUO QIAN Effective date: 20121012 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100089 HAIDIAN, BEIJING TO: 100176 DAXING, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121012 Address after: 100176 Beijing branch of Beijing economic and Technological Development Zone No. 2 201-220 Street 100 Patentee after: Beijing Libeier Bioengineering Research Institute Co., Ltd. Address before: Wanliu City No. 11 building, 100089 Beijing City, Haidian District Changchun Road No. 4 Building 804B Patentee before: Guo Qian |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Beijing Keyi Bunn medical equipment science and Technology Co Ltd Assignor: Guo Qian Contract record no.: 2010990000801 Date of cancellation: 20121011 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
|
| CX01 | Expiry of patent term |