CN204600656U - Guide pin entry point position developer - Google Patents
Guide pin entry point position developer Download PDFInfo
- Publication number
- CN204600656U CN204600656U CN201520107851.6U CN201520107851U CN204600656U CN 204600656 U CN204600656 U CN 204600656U CN 201520107851 U CN201520107851 U CN 201520107851U CN 204600656 U CN204600656 U CN 204600656U
- Authority
- CN
- China
- Prior art keywords
- bar
- loop bar
- guide pin
- entry point
- point position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of guide pin entry point position developer, comprise: the loop bar be made up of rustless steel, guide channel through before and after being provided with in loop bar, is provided with the introducing section integrally formed with loop bar in the front end of loop bar, and introducing section is by the rear cone reduced gradually to front diameter; Outwardly bulge loop is provided with on loop bar lateral wall, near introducing section; Loop bar sidewall is provided with the bar-shaped trough with loop bar axis being parallel, through and be connected with guide channel bottom bar-shaped trough before and after bar-shaped trough, loop bar sidewall is also provided with at least one gap be inwardly recessed, and gap is positioned at bar-shaped trough homonymy, and the gap degree of depth is greater than loop bar radius.The utility model has the advantages that: clearly can observe guide pin entry point position, use fool proof, reliable.
Description
Technical field
This utility model relates to for observing the assistive device determining guide pin entry point position, particularly relates to a kind of guide pin entry point position developer.
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, especially to being positioned at Fracture of femur methods of internal fixation under tuberosity, it is very difficult that the entry point malposition of intramedullary pin can cause intramedullary pin to enter pulp cavity, serious also can affect whole therapeutic process, thus causes Fracture of femur place delayed union, disunion or malunion.The entry point position of intramedullary pin is controlled by guide pin, and during operation, under X-ray is auxiliary, guide pin stretches to from skin incision and contacts with femur, then judges guide pin entry point position according to X-ray development and appropriately adjusts.But at present when performing the operation when there is the situation developed in position, femur side, due to shape and the X-ray developing property of femur self, doctor is difficult to observe guide pin entry point position by X-ray is clear, so just bring certain difficulty for looking for correct entry point in side, be difficult to like this avoid occurring maloperation phenomenon, also can extend the time of operation simultaneously, 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 to observe the assistive device of guide pin entry point position by assist physician.
Utility model content
The required technical problem solved of this utility model is: provide a kind of energy the clear guide pin entry point position developer observing guide pin entry point position.
For solving the problem, the technical solution adopted in the utility model is: described guide pin entry point position developer, comprise: the loop bar be made up of rustless steel, guide channel through before and after being provided with in loop bar, the front end of loop bar is provided with introducing section, introducing section is by the rear cone reduced gradually to front diameter, loop bar and introduce section and to be one of the forming structure; Outwardly bulge loop is provided with on loop bar lateral wall, near introducing section; Loop bar sidewall is provided with the bar-shaped trough with loop bar axis being parallel, through and be connected with guide channel bottom bar-shaped trough before and after bar-shaped trough, loop bar sidewall is also provided with at least one gap be inwardly recessed, and gap is positioned at bar-shaped trough homonymy, and the gap degree of depth is greater than loop bar radius.
Further, aforesaid guide pin entry point position developer, wherein, the cross sectional shape of described bar-shaped trough is V-arrangement shape, and the upper and lower two sides prolongation of the bar-shaped trough of V-arrangement shape is intersected in loop bar axle center.
Further, aforesaid guide pin entry point position developer, wherein, the angular range of the angle α of the upper and lower two sides of bar-shaped trough controls within the scope of 110 ° ~ 130 °.
Further, aforesaid guide pin entry point position developer, wherein, the angle α of the upper and lower two sides of bar-shaped trough is 120 °.
Further, aforesaid guide pin entry point position developer, wherein, described bulge loop lateral wall is outwardly arc bulge loop.
Further, aforesaid guide pin entry point position developer, wherein, loop bar sidewall is arranged at intervals with three gap be inwardly recessed.
Further, aforesaid guide pin entry point position developer, wherein, the diameter of described guide channel is 2 ± 0.2 ㎜.
Further, aforesaid guide pin entry point position developer, wherein, bulge loop front end is 1 ㎜ to the distance of introducing section front end.
The beneficial effects of the utility model are: (1) can be developed the loop bar clearly observed and be pressed on femur place by X-ray in operation process, judges guide pin entry point position by the development of loop bar front end; Arranging of bulge loop can increase development part greatly, thus makes doctor more easily judge guide pin entry point position; (2) if loop bar is moved being inserted in or can making in withdrawal process guide pin position, then doctor can use instrument to clamp guide pin by gap, makes guide pin position maintain original position and not affect by loop bar, uses very convenient, reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of guide pin entry point position described in the utility model developer.
Fig. 2 is the structural representation of left apparent direction in Fig. 1.
Fig. 3 is the cross-sectional schematic in A-A direction in Fig. 1.
Fig. 4 is the cross-sectional schematic in B-B direction in Fig. 2.
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 shown in Figure 1, Figure 2 and Figure 4, guide pin entry point position developer described in the present embodiment, comprise: the loop bar 7 be made up of rustless steel, guide channel 71 through before and after being provided with in loop bar 7, the diameter control of guide channel 71 described in the present embodiment is within the scope of 2 ± 0.2 ㎜, in actual production, the diameter of guide channel 71 is set to 2 ㎜, like this, can ensure that guide pin is mobile in guide channel 71, can ensure that again the guide pin being positioned at guide channel 71 can not drop out outside guide channel 71 easily.Guide pin can be inserted in guide channel 71, is provided with introduces section 72 in the front end of loop bar 7, and introducing section 72 be by the rear cone reduced gradually to front diameter, and loop bar 7 and introducing section 72 are one of the forming structure; Outwardly bulge loop 8 is provided with on the lateral wall of loop bar 7, near introducing section 72; In the present embodiment, the lateral wall of described bulge loop 8 is outwardly arc bulge loop, and bulge loop front end is 1 ± 0.1 ㎜ to the distance of introducing section front end, in actual production, bulge loop front end is set to 1 ㎜ to the optimum distance introducing section front end, observes best at this position user.The sidewall of loop bar 7 is provided with the bar-shaped trough 9 with the axis being parallel of loop bar 7, before and after bar-shaped trough 9, the through and bottom of bar-shaped trough 9 is connected with guide channel 71, in the present embodiment, the cross sectional shape of described bar-shaped trough 9 is V-arrangement shape, and the upper and lower two sides of the bar-shaped trough 9 of V-arrangement shape extend the axle center being intersected in loop bar 7; The angular range of the angle α of the upper and lower two sides of bar-shaped trough 9 controls within the scope of 110 ° ~ 130 °; In the present embodiment, the angle α best angle of the upper and lower two sides of bar-shaped trough 9 is 120 °.When performing the operation, loop bar 7 can be observed more intuitively by bar-shaped trough 9 and whether be inserted in guide pin swimmingly or extract from guide pin.As shown in figures 1 and 3, the sidewall of loop bar 7 is also provided with at least one gap 10 be inwardly recessed, and gap 10 is positioned at the homonymy of bar-shaped trough 9, and the groove depth of gap 10 is greater than the radius of loop bar 7 and gap 10 up/down perforation.In the present embodiment, as shown in Figure 1, the sidewall of loop bar 7 is arranged at intervals with three gap be inwardly recessed 10.When loop bar 7 is when being inserted in or making in withdrawal process guide pin position to be moved, the instrument of clamping guide pin clamps guide pin by gap 10, makes the relative guide pin motion of loop bar 7 and not by the interference of instrument, prevents guide pin position from moving.
The utility model has the advantages that: (1) can be developed the loop bar 7 clearly observed and be pressed on femur place by X-ray in operation process, judges guide pin entry point position by the development of loop bar front end; Arranging of bulge loop 8 can increase development part greatly, thus makes doctor more easily judge guide pin entry point position; (2) if loop bar 7 is moved being inserted in or can making in withdrawal process guide pin position, then doctor can use instrument to clamp guide pin by gap 10, makes guide pin position maintain original position and not by the impact of loop bar 7, use very convenient, reliable.
Claims (8)
1. guide pin entry point position developer, it is characterized in that: comprising: the loop bar be made up of rustless steel, guide channel through before and after being provided with in loop bar, the front end of loop bar is provided with introducing section, introducing section is by the rear cone reduced gradually to front diameter, loop bar and introduce section and to be one of the forming structure; Outwardly bulge loop is provided with on loop bar lateral wall, near introducing section; Loop bar sidewall is provided with the bar-shaped trough with loop bar axis being parallel, through and be connected with guide channel bottom bar-shaped trough before and after bar-shaped trough, loop bar sidewall is also provided with at least one gap be inwardly recessed, and gap is positioned at bar-shaped trough homonymy, and the gap degree of depth is greater than loop bar radius.
2. according to guide pin entry point position according to claim 1 developer, it is characterized in that: the cross sectional shape of described bar-shaped trough is V-arrangement shape, the upper and lower two sides prolongation of the bar-shaped trough of V-arrangement shape is intersected in loop bar axle center.
3. according to guide pin entry point position according to claim 2 developer, it is characterized in that: the angular range of the angle α of the upper and lower two sides of bar-shaped trough controls within the scope of 110 ° ~ 130 °.
4. according to guide pin entry point position according to claim 3 developer, it is characterized in that: the angle α of the upper and lower two sides of bar-shaped trough is 120 °.
5. according to guide pin entry point position according to claim 1 developer, it is characterized in that: described bulge loop lateral wall is outwardly arc bulge loop.
6., according to the guide pin entry point position developer described in claim 1,2 or 5, it is characterized in that: on loop bar sidewall, be arranged at intervals with three gap be inwardly recessed.
7. according to the guide pin entry point position developer described in claim 1,2 or 5, it is characterized in that: the diameter of described guide channel is 2 ± 0.2 ㎜.
8. according to the guide pin entry point position developer described in claim 1,2 or 5, it is characterized in that: bulge loop front end is 1 ± 0.1 ㎜ to the distance of introducing section front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107851.6U CN204600656U (en) | 2015-02-15 | 2015-02-15 | Guide pin entry point position developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107851.6U CN204600656U (en) | 2015-02-15 | 2015-02-15 | Guide pin entry point position developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204600656U true CN204600656U (en) | 2015-09-02 |
Family
ID=53953257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520107851.6U Withdrawn - After Issue CN204600656U (en) | 2015-02-15 | 2015-02-15 | Guide pin entry point position developer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204600656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665918A (en) * | 2015-02-15 | 2015-06-03 | 陆爱清 | Pin feeding point position development device for guide pin |
-
2015
- 2015-02-15 CN CN201520107851.6U patent/CN204600656U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665918A (en) * | 2015-02-15 | 2015-06-03 | 陆爱清 | Pin feeding point position development device for guide pin |
| CN104665918B (en) * | 2015-02-15 | 2017-08-25 | 陆爱清 | Guide pin entry point position developer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170825 |
|
| AV01 | Patent right actively abandoned |