CN203029324U - Universal type bone drill driving and clamping mechanism - Google Patents
Universal type bone drill driving and clamping mechanism Download PDFInfo
- Publication number
- CN203029324U CN203029324U CN 201220745855 CN201220745855U CN203029324U CN 203029324 U CN203029324 U CN 203029324U CN 201220745855 CN201220745855 CN 201220745855 CN 201220745855 U CN201220745855 U CN 201220745855U CN 203029324 U CN203029324 U CN 203029324U
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- output shaft
- power
- bone drill
- clamping mechanism
- drives
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Abstract
The utility model discloses a universal type bone drill driving and clamping mechanism which comprises a clamping head and a speed changer. The speed changer is provided with a power output shaft for driving the clamping head, and at least the power output shaft of the speed changer is provided with an output shaft axial center hole which is coaxial with a clamping center of the clamping head and is through. At least the power output shaft of the speed changer is of a hollow structure, a hollow structure of the whole speed changer is retained, an enough longitudinal space is reserved for a Kirschner wire, and the driving mechanism has good universality and can be used for clamping and driving the Kirschner wire while used for an orthopedics drill. The universal type bone drill driving and clamping mechanism is compact in integral structure, simple and convenient to use and high in working efficiency.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, and the bone drill clamping that particularly has universal performance in a kind of surgical operation drives assembly.
Background technology
It is the comparatively common surgical operation mode of orthopaedics that orthopaedics bores, and finishes by orthopaedics rig (handle); Drive by the chuck clamping and by power handle during use, realize that high speed rotating creeps into.
And Kirschner wire belongs to a kind of orthopaedics internal fixation material commonly used, is used for fracture fixations such as fracture or avulsion fracture.Equally, Kirschner wire need adopt driving mechanism to creep into when using, thereby needs clamping device and drive the actuating unit that clamping device rotates; And in the prior art, Kirschner wire passes through special-purpose chuck clamping on the core drill mobile phone.And the driving assembly of above-mentioned bone drill driving assembly and Kirschner wire can't be general, that is to say, bone drill drives assembly can't be used for the Kirschner wire driving, cause the waste of resource; And, reduce operation efficient.
Therefore, need bore driving arrangement to existing orthopaedics and improve, make this driving arrangement have good versatility, when being used for the orthopaedics brill, can be used for clamping and drive Kirschner wire, compact overall structure, easy to use, high efficiency.
The utility model content
In view of this, this utility model provides a kind of universal bone drill head to drive and clamping mechanism, makes this driving arrangement have good versatility, when being used for the orthopaedics brill, can be used for clamping and drive Kirschner wire, compact overall structure, easy to use, high efficiency.
Universal bone drill head of the present utility model drives and clamping mechanism, comprises chuck and variator, and described variator is provided with for the power output shaft that drives chuck, and described power output shaft is provided with output shaft axial center hole coaxial with the Clamping Center of chuck and that connect.
Further, described variator is provided with the power input shaft for input power, and described power input shaft is provided with power shaft axial center hole coaxial with power output shaft and that be communicated with the output shaft axial center hole;
Further, described variator is dual-range transmission, comprise one-level planet circular system and secondary planet train, the sun gear of one-level planet circular system cooperates with the power input shaft transmission, the planet carrier of one-level planet circular system cooperates with the sun gear transmission of secondary planet train, and the planet carrier of secondary planet train cooperates with the power output shaft transmission;
Further, between output shaft axial center hole and power shaft axial center hole, be provided with the two ends corresponding bushing pipe that penetrates output shaft axial center hole and power shaft axial center hole respectively;
Further, the sun gear of described secondary planet train is rotatably assorted between power input shaft and power output shaft and is coated at bushing pipe;
Further, cooperate in the circumferencial direction transmission between described power output shaft and the bushing pipe, be rotatably assorted between bushing pipe and the power input shaft;
Further, the planet carrier of described one-level planet circular system be provided with in the circle spline, the sun gear of secondary planet train be provided with this in the circle spline fitted the cylindrical spline, the planet carrier of described power output shaft and secondary planet train is integrally formed; The sun gear of power input shaft and one-level planet circular system is integrally formed;
Further, described bushing pipe extends back and passes through journal bearing supporting motive force power shaft, and described power input shaft tail end is provided with for the transmission that engages power interdigital.
The beneficial effects of the utility model: universal bone drill head of the present utility model drives and clamping mechanism, variator power output shaft at least adopts hollow-core construction, and then the whole hollow structure of reservation variator, reserve enough longitudinal spaces for Kirschner wire, make this driving arrangement have good versatility, when being used for the orthopaedics brill, can be used for clamping and drive Kirschner wire, compact overall structure, easy to use, high efficiency.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further described.
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the universal bone drill head of present embodiment drives and clamping mechanism, comprise chuck 1 and variator, described variator is provided with for the power output shaft 2 that drives chuck, and described power output shaft 2 is provided with output shaft axial center hole 15 coaxial with the Clamping Center of chuck and that connect; As shown in the figure, power output shaft 2 is a Morse's taper, and chuck 1 is connected in power output shaft for the SANYE chuck and by this Morse's taper; The spanner that bone drill head or Kirschner wire use the SANYE chuck to carry during use clamps.
In the present embodiment, described variator is provided with the power input shaft 12 for input power, and described power input shaft 12 is provided with and power output shaft 2 power shaft axial center holes 18 coaxial and that be communicated with output shaft axial center hole 15; Output shaft axial center hole 15 and power shaft axial center hole 18 can also can be directly contact connection for being communicated with by middleware, and be certain, need be designed to the structure of the two rotating cooperation; This structure has further prolonged hollow-core construction, is applicable to long Kirschner wire.
In the present embodiment, described variator is dual-range transmission, comprise one-level planet circular system and secondary planet train, the sun gear 13 of one-level planet circular system cooperates with power input shaft 12 transmissions, the planet carrier 6 of one-level planet circular system cooperates with sun gear 14 transmissions of secondary planet train, and the planet carrier 4 of secondary planet train cooperates with power output shaft 2 transmissions; One-level planet circular system and secondary planet train arrange necessary planetary gear and external toothing respectively, as shown in the figure, and the planetary gear 7 of one-level planet circular system and external toothing 16; The planetary gear 5 of secondary planet train and external toothing 17 belong to prior art constructions, do not repeat them here; Adopt the planet circular system transmission, have slow down effective, the high and stable advantage of transmission of transmission accuracy, and make compact equipment, globality is strong.
Variator arranges necessary gear-box 3, belongs to prior art, does not repeat them here; As shown in the figure, external toothing 16 and external toothing 17 are one-piece in gear-box 3, and can be provided with housing outside the gear-box 3.
In the present embodiment, between output shaft axial center hole 15 and power shaft axial center hole 18, be provided with the two ends corresponding bushing pipe 8 that penetrates output shaft axial center hole 15 and power shaft axial center hole 18 respectively; Adopt the structure of bushing pipe 8, separately transmission component and Kirschner wire and bone drill head can prevent that bone drill head and Kirschner wire are contaminated.
In the present embodiment, the sun gear 14 of described secondary planet train is rotatably assorted between power input shaft 12 and power output shaft 2 and is coated at bushing pipe; Bushing pipe 8 plays the effect of supporting transmission component simultaneously, makes this utility model structure further reduce volume, compact conformation, and globality is strong.
In the present embodiment, cooperate in the circumferencial direction transmission between described power output shaft 2 and the bushing pipe 8, be rotatably assorted between bushing pipe 8 and the power input shaft 12; Transmission is effective, and bushing pipe 8 rotates synchronously with Kirschner wire, prevents from interfering.
In the present embodiment, circle spline in the planet carrier 6 of described one-level planet circular system is provided with, the sun gear 14 of secondary planet train be provided with this in the cylindrical spline of circle spline fitted, described power output shaft 2 is integrally formed with the planet carrier 4 of secondary planet train; Power input shaft 12 is integrally formed with the sun gear 13 of one-level planet circular system; Simple and compact for structure, cost of manufacture is low.
In the present embodiment, described bushing pipe 8 extends back and by journal bearing 11 supporting motive force power shafts 12, as shown in the figure, power input shaft 12 is supported in bushing pipe 8 by annular bearing with rolling contact; Described power input shaft tail end is provided with for the transmission that engages power interdigital 10, and as shown in the figure, transmission interdigital 10 and power input shaft 12 are in transmission connection by radial peg.
In this utility model, according to the transmission needs, necessary annular bearing with rolling contact can be set, belong to prior art, not repeat them here.
In this utility model, the place ahead is to the drilling direction that refers to Kirschner wire.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment this utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1. a universal bone drill head drives and clamping mechanism, comprise chuck and variator, described variator is provided with for the power output shaft that drives chuck, it is characterized in that: described variator power output shaft at least is provided with output shaft axial center hole coaxial with the Clamping Center of chuck and that connect.
2. universal bone drill head according to claim 1 drives and clamping mechanism, it is characterized in that: described variator is provided with the power input shaft for input power, and described power input shaft is provided with power shaft axial center hole coaxial with power output shaft and that be communicated with the output shaft axial center hole.
3. universal bone drill head according to claim 2 drives and clamping mechanism, it is characterized in that: described variator is dual-range transmission, comprise one-level planet circular system and secondary planet train, the sun gear of one-level planet circular system cooperates with the power input shaft transmission, the planet carrier of one-level planet circular system cooperates with the sun gear transmission of secondary planet train, and the planet carrier of secondary planet train cooperates with the power output shaft transmission.
4. universal bone drill head according to claim 3 drives and clamping mechanism, it is characterized in that: be provided with the two ends corresponding bushing pipe that penetrates output shaft axial center hole and power shaft axial center hole respectively between output shaft axial center hole and power shaft axial center hole.
5. universal bone drill head according to claim 4 drives and clamping mechanism, and it is characterized in that: the sun gear of described secondary planet train is rotatably assorted between power input shaft and power output shaft and is coated at bushing pipe.
6. universal bone drill head according to claim 5 drives and clamping mechanism, it is characterized in that: cooperate in the circumferencial direction transmission between described power output shaft and the bushing pipe, be rotatably assorted between bushing pipe and the power input shaft.
7. universal bone drill head according to claim 6 drives and clamping mechanism, it is characterized in that: circle spline in the planet carrier of described one-level planet circular system is provided with, the sun gear of secondary planet train be provided with this in the circle spline fitted the cylindrical spline, the planet carrier of described power output shaft and secondary planet train is integrally formed; The sun gear of power input shaft and one-level planet circular system is integrally formed.
8. universal bone drill head according to claim 7 drives and clamping mechanism, it is characterized in that: described bushing pipe extends back and by journal bearing supporting motive force power shaft, described power input shaft tail end is provided with for the transmission that engages power interdigital.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745855 CN203029324U (en) | 2012-12-29 | 2012-12-29 | Universal type bone drill driving and clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745855 CN203029324U (en) | 2012-12-29 | 2012-12-29 | Universal type bone drill driving and clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203029324U true CN203029324U (en) | 2013-07-03 |
Family
ID=48681473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745855 Expired - Lifetime CN203029324U (en) | 2012-12-29 | 2012-12-29 | Universal type bone drill driving and clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203029324U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939891A (en) * | 2014-03-31 | 2015-09-30 | 重庆西山科技有限公司 | Self-tightening type bone drilling machine head |
| CN106725653A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | A kind of minimally invasive bone-operating device |
| CN110742673A (en) * | 2018-07-24 | 2020-02-04 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN111839655A (en) * | 2020-07-24 | 2020-10-30 | 中南大学湘雅医院 | Multistage guiding and positioning type electric bone drill |
-
2012
- 2012-12-29 CN CN 201220745855 patent/CN203029324U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939891A (en) * | 2014-03-31 | 2015-09-30 | 重庆西山科技有限公司 | Self-tightening type bone drilling machine head |
| CN106725653A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | A kind of minimally invasive bone-operating device |
| CN110742673A (en) * | 2018-07-24 | 2020-02-04 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN110742673B (en) * | 2018-07-24 | 2021-03-16 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN111839655A (en) * | 2020-07-24 | 2020-10-30 | 中南大学湘雅医院 | Multistage guiding and positioning type electric bone drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The 401121 northern New District of Chongqing Municipality Jupiter technology development center is a district 4 Building Patentee after: CHONGQING XISHAN SCIENCE & TECHNOLOGY Co.,Ltd. Address before: The 401121 northern New District of Chongqing Municipality Jupiter technology development center is a district 4 Building Patentee before: CHONGQING XISHAN SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
|
| CX01 | Expiry of patent term |