CN204600655U - Intramedullary pin entry point actuator - Google Patents
Intramedullary pin entry point actuator Download PDFInfo
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- CN204600655U CN204600655U CN201520107775.9U CN201520107775U CN204600655U CN 204600655 U CN204600655 U CN 204600655U CN 201520107775 U CN201520107775 U CN 201520107775U CN 204600655 U CN204600655 U CN 204600655U
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Abstract
The utility model discloses a kind of intramedullary pin entry point actuator, comprising: adjusting rod, adjusting rod front end is provided with introducing section; Adjusting rod rear end is provided with lever, lever, adjusting rod and introducing section are one of the forming structure, centre pilot passage is through to be arranged in lever, adjusting rod and introducing section, centre pilot passage runs through lever rear end face and forms the first pilot hole, and centre pilot passage runs through to be introduced section outer surface and forms the second pilot hole; Some separate adjustment passages are arranged at intervals with at centre pilot channel circumference, each adjustment passage is through to be arranged in lever, adjusting rod and introducing section, each adjustment passage runs through lever rear end face and forms the first adjustment hole, and each passage that regulates runs through introducing section outer surface and forms the second adjustment hole; Each adjustment passage and centre pilot passage be parallel to each other and distance of shaft centers from different.The utility model has the advantages that: the correct entry point position of intramedullary pin can be determined fast, effectively shorten operating time, use very convenient.
Description
Technical field
This utility model relates to the assistive device of auxiliary intra medullary nail determination entry point position, particularly relates to a kind of intramedullary pin entry point actuator.
Background technology
The fixed form of Fracture of femur often adopts intramedullary pin methods of internal fixation, the entry point that intramedullary pin enters femoral bone cavitas medullaris is most important, the entry point of intramedullary pin locates incorrect meeting, and to cause intramedullary pin to enter pulp cavity very difficult, serious also can affect whole therapeutic process, thus causes Fracture of femur place delayed union, disunion or malunion.At present when performing the operation, the entry point of intramedullary pin is assisted by X-ray, relied on its experience to judge by doctor and adjust, intramedullary pin inserting needle path is introduced into femoral bone cavitas medullaris by guide pin, when the entry point of guide pin offsets correct entry point position, the position estimation that doctor shows according to X-ray also adjusts guide pin until guide pin entry point moves to tram, then makes intramedullary pin enter femoral bone cavitas medullaris along guide pin introducing path.The judgement of entry point position and adjustment substantially prolongs the time of operation, operate very inconvenient; And this operation is in the auxiliary lower operation of X-ray, greatly can increase the amount of radiation that patient and doctor are subject to like this, thus be badly in need of a kind ofly determining the assistive device of the correct entry point position of intramedullary pin fast by assist physician.
Utility model content
The required technical problem solved of this utility model is: provide a kind of intramedullary pin entry point actuator determining the correct entry point position of intramedullary pin fast.
For solving the problem, the technical solution adopted in the utility model is: described intramedullary pin entry point actuator, comprising: adjusting rod, adjusting rod front end is provided with introducing section, and introducing section is by the rear cone reduced gradually to front diameter; Adjusting rod rear end is provided with lever, lever, adjusting rod and introducing section are one of the forming structure, centre pilot passage is through to be arranged in lever, adjusting rod and introducing section, centre pilot passage runs through lever rear end face and forms the first pilot hole, and centre pilot passage runs through to be introduced section outer surface and forms the second pilot hole; Some separate adjustment passages are arranged at intervals with at centre pilot channel circumference, each adjustment passage is through to be arranged in lever, adjusting rod and introducing section, each adjustment passage runs through lever rear end face and forms the first adjustment hole, and each passage that regulates runs through introducing section outer surface and forms the second adjustment hole; Each adjustment passage and centre pilot passage be parallel to each other and distance of shaft centers from different.
Further, aforesaid intramedullary pin entry point actuator, wherein, centre pilot passage and adjusting rod central axis are parallel to each other.
Further, aforesaid intramedullary pin entry point actuator, wherein, lever sidewall spacers is provided with some grooves be inwardly recessed, and each groove is distributed on lever sidewall.
Further, aforesaid intramedullary pin entry point actuator, wherein, the strip groove that described groove is through before and after being.
Further, aforesaid intramedullary pin entry point actuator, wherein, described strip groove is the arc groove be inwardly recessed.
Further, aforesaid intramedullary pin entry point actuator, wherein, the rear end face of lever is provided with the pitch-row value identifying each first adjustment hole to the first pilot hole.
Further, aforesaid intramedullary pin entry point actuator, wherein, lever lateral wall is respectively arranged with the pitch-row value of a certain adjustment hole of mark to arbitrary adjustment hole.
The beneficial effects of the utility model are: this intramedullary pin entry point controller structure is simple, the a certain adjustment passage in use distance with it can being selected to match according to the side-play amount of X-ray development can determine the correct entry point position of intramedullary pin fast, use very convenient, substantially reduce operating time, greatly reduce the amount of radiation suffered by doctor and patient simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of intramedullary pin entry point actuator described in the utility model.
Fig. 2 is the cross-sectional schematic in C-C direction in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, technical scheme described in the utility model is described in further detail.
As depicted in figs. 1 and 2, intramedullary pin entry point actuator described in the utility model, comprising: adjusting rod 1, is provided with introduces section 11 in the front end of adjusting rod 1, and introducing section 11 is by the rear cone reduced gradually to front diameter; The introducing section 11 of cone shape can stretch to and femur inserting needle location contacts from skin incision by guide adjustment bar 1 better.The rear end of adjusting rod 1 is provided with lever 2, lever 2, adjusting rod 1 and introduce section 11 and to be one of the forming structure, in the present embodiment, the sidewall spacers of lever 2 is provided with some grooves be inwardly recessed, and each groove is distributed on lever sidewall, the strip groove 21 that described groove is through before and after being, in the present embodiment, the arc groove of described strip groove 21 for being inwardly recessed, strip groove 21 can make doctor can control this intramedullary pin entry point actuator better, effectively improves procedure efficiency.Centre pilot passage 3 is through to be arranged at lever 2, adjusting rod 1 and to introduce in section 11, and centre pilot passage 3 runs through lever rear end face and forms the first pilot hole 22, and centre pilot passage 3 runs through to be introduced section outer surface and forms the second pilot hole; In the present embodiment, centre pilot passage 3 is parallel to each other with the central axis of adjusting rod 1.Centre pilot passage 3 ambient separation is provided with some separate adjustment passages 31, each adjustment passage 31 is through to be arranged at lever 2, adjusting rod 1 and to introduce in section 11, each adjustment passage 31 runs through lever 2 rear end face and forms the first adjustment hole 23, and each passage 31 that regulates runs through introducing section outer surface and forms the second adjustment hole; Each adjustment passage 31 and centre pilot passage 3 be parallel to each other and distance of shaft centers from different.In the present embodiment, the rear end face of lever 2 is provided with the pitch-row value identifying each first adjustment hole 23 to the first pilot hole 22.Lever lateral wall is respectively arranged with the pitch-row value of a certain adjustment hole of mark to arbitrary adjustment hole, the use of the convenient doctor of energy like this.In the present embodiment, centre pilot passage 3 ambient separation is provided with four separate adjustment passages 31, namely the pitch-row value forming four the first adjustment holes, 23, four the first adjustment hole 23 to the first pilot holes 22 at the rear end face of lever 2 is respectively: 4.2 ㎜, 4.5 ㎜, 5.0 ㎜, 5.5 ㎜; Pitch-row value between each second adjustment hole is respectively: 6 ㎜, 6.5 ㎜, 7 ㎜, 7.5 ㎜, 9.2 ㎜, 10 ㎜, on an actuator, just there are 10 adjustable ranges available like this, adjustable range and regulate the quantity of passage 31 can Design and Machining according to actual needs.
During operation, under X-ray is auxiliary, guide pin is stretched to from skin incision and contacts with femur, then the second pilot hole 23 of adjusting rod 1 is made just to be inserted in guide pin, guide pin is made to be positioned at centre pilot passage 3, then according to the guide pin needle point of X-ray development and the side-play amount correctly between entry point, a certain adjustment passage selecting distance with it to match, then rotation adjusting lever makes the adjustment passage of this coupling rotate to relevant position.Suppose that the side-play amount between the guide pin needle point of development and correct entry point is 5 ㎜, then rotate to relevant position by with the first pilot hole 22 at a distance of first adjustment hole 23 of 5 ㎜ according to the pitch-row value of mark, then guide pin is inserted in this adjustment passage 31, guide pin enters femoral bone cavitas medullaris under the guiding of this adjustment passage 31, and then intramedullary pin just can enter femoral bone cavitas medullaris along guide pin introducing path swimmingly.
The utility model has the advantages that: this intramedullary pin entry point controller structure is simple, the a certain adjustment passage 31 in use distance with it can being selected to match according to the side-play amount of X-ray development can determine the correct entry point position of intramedullary pin fast, use very convenient, substantially reduce operating time, greatly reduce the amount of radiation suffered by doctor and patient simultaneously.
Claims (8)
1. intramedullary pin entry point actuator, comprising: adjusting rod, it is characterized in that: adjusting rod front end is provided with introducing section, and introducing section is by the rear cone reduced gradually to front diameter; Adjusting rod rear end is provided with lever, lever, adjusting rod and introducing section are one of the forming structure, centre pilot passage is through to be arranged in lever, adjusting rod and introducing section, centre pilot passage runs through lever rear end face and forms the first pilot hole, and centre pilot passage runs through to be introduced section outer surface and forms the second pilot hole; Some separate adjustment passages are arranged at intervals with at centre pilot channel circumference, each adjustment passage is through to be arranged in lever, adjusting rod and introducing section, each adjustment passage runs through lever rear end face and forms the first adjustment hole, and each passage that regulates runs through introducing section outer surface and forms the second adjustment hole; Each adjustment passage and centre pilot passage be parallel to each other and distance of shaft centers from different.
2. according to intramedullary pin entry point actuator according to claim 1, it is characterized in that: centre pilot passage and adjusting rod central axis are parallel to each other.
3. according to the intramedullary pin entry point actuator described in claim 1 or 2, it is characterized in that: lever sidewall spacers is provided with some grooves be inwardly recessed, and each groove is distributed on lever sidewall.
4. according to intramedullary pin entry point actuator according to claim 3, it is characterized in that: the strip groove that described groove is through before and after being.
5. according to intramedullary pin entry point actuator according to claim 4, it is characterized in that: described strip groove is the arc groove be inwardly recessed.
6. according to intramedullary pin entry point actuator according to claim 1, it is characterized in that: on the rear end face of lever, be provided with the pitch-row value identifying each first adjustment hole to the first pilot hole.
7. according to intramedullary pin entry point actuator according to claim 5, it is characterized in that: on lever lateral wall, be respectively arranged with the pitch-row value of a certain adjustment hole of mark to arbitrary adjustment hole.
8. according to intramedullary pin entry point actuator according to claim 5, it is characterized in that: on the rear end of lever, be provided with the pitch-row value identifying each first adjustment hole to the first pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107775.9U CN204600655U (en) | 2015-02-15 | 2015-02-15 | Intramedullary pin entry point actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107775.9U CN204600655U (en) | 2015-02-15 | 2015-02-15 | Intramedullary pin entry point actuator |
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| Publication Number | Publication Date |
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| CN204600655U true CN204600655U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520107775.9U Active CN204600655U (en) | 2015-02-15 | 2015-02-15 | Intramedullary pin entry point actuator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665917A (en) * | 2015-02-15 | 2015-06-03 | 陆爱清 | Intramedullary nail entry point regulator |
| CN112315574A (en) * | 2020-12-16 | 2021-02-05 | 山东大学齐鲁医院(青岛) | PFNA hip compression screw guiding steel needle guiding device and hip compression screw implanting tool |
| CN113796943A (en) * | 2021-05-12 | 2021-12-17 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femoral Kirschner wire positioning and adjusting device |
-
2015
- 2015-02-15 CN CN201520107775.9U patent/CN204600655U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665917A (en) * | 2015-02-15 | 2015-06-03 | 陆爱清 | Intramedullary nail entry point regulator |
| CN112315574A (en) * | 2020-12-16 | 2021-02-05 | 山东大学齐鲁医院(青岛) | PFNA hip compression screw guiding steel needle guiding device and hip compression screw implanting tool |
| CN113796943A (en) * | 2021-05-12 | 2021-12-17 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femoral Kirschner wire positioning and adjusting device |
| CN113796943B (en) * | 2021-05-12 | 2023-11-10 | 蚌埠医学院第一附属医院（蚌埠医学院附属肿瘤医院） | Femur Kirschner wire positioning and adjusting device |
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