CN202843775U - Lesser trochanter reset fixture guiding device - Google Patents
Lesser trochanter reset fixture guiding device Download PDFInfo
- Publication number
- CN202843775U CN202843775U CN 201220332892 CN201220332892U CN202843775U CN 202843775 U CN202843775 U CN 202843775U CN 201220332892 CN201220332892 CN 201220332892 CN 201220332892 U CN201220332892 U CN 201220332892U CN 202843775 U CN202843775 U CN 202843775U
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- guider
- lesser trochanter
- sleeve
- reduction
- nail
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Abstract
The utility model relates to the technical field of medical instruments and discloses a lesser trochanter reset fixture guiding device which comprises a locking handle, an intramedullary nail main nail avoiding guiding device, a lesser trochanter reset location guiding device and a lesser trochanter guiding sleeve. The intramedullary nail main nail avoiding guiding device is fixedly connected with the locking handle. The lesser trochanter guiding sleeve is inserted into the intramedullary nail main nail avoiding guiding device and a guiding hole of the lesser trochanter reset location guiding device. The lesser trochanter reset fixture guiding device can assist in resetting a lesser trochanter, effectively avoids an intramedullary main nail, is aligned to the lesser trochanter for effective fixture, and effectively resets and fixes the lesser trochanter so that fracture stability is increased.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to a kind of small trochanteric reduction fixed guider.
Background technology
The internal fixation system of intertrochanteric fracture comprises marrow external fixation system and marrow internal fixation system.The advantages such as the marrow internal fixation system is short owing to the arm of force, moment of flexure is little, and wound is little, and is easy and simple to handle are the first-selections of unstable intertrochanteric fracture, but adopt the marrow internal fixation system then to be difficult to fixedly lesser trochanter with the intertrochanteric fracture of lesser trochanter displacement fracture.Lesser trochanter is positioned at the rear side of femur, squeezes into the pulling force nail close femoral bone cavitas medullaris of fixedly must trying one's best during lesser trochanter from the outside, could be with the fixing lesser trochanter of appropriate angle.Because the main nail of marrow internal fixation system is in femoral bone cavitas medullaris, occupied about 1/2nd of femur diameter, should be accurately when squeezing into fixing trochantinian cannulated lag screw fixedly lesser trochanter avoid again femoral interlocking nail master nail, technical requirement is too high when clinical operation.
How to invent a kind of trochantinian while of structure auxiliary reset and can effectively avoid in the marrow main nail and aim at lesser trochanter and effectively fix, active homing is lesser trochanter fixedly, and making the fracture stabilization increase is the problem that those skilled in the art need to solve.
Summary of the invention
Primary and foremost purpose of the present utility model just is to overcome the existing deficiency of medical apparatus and instruments of existing treatment intertrochanteric fracture, thereby provide a kind of small trochanteric reduction fixed guider, the trochantinian while of this utility model auxiliary reset can effectively be avoided the interior main nail of marrow and aim at lesser trochanter and effectively fix, active homing is lesser trochanter fixedly, make the fracture stabilization increase, make early out-of-bed activity of patient, reduce various complication, improve the therapeutic effect of intertrochanteric fracture.
Small trochanteric reduction fixed guider of the present utility model, comprise that lock handle, intramedullary pin master nail avoids guider, small trochanteric reduction locating guider and lesser trochanter pilot sleeve, intramedullary pin master nail is avoided guider and is fixedly connected with lock handle, and the lesser trochanter pilot sleeve inserts intramedullary pin master nail and avoids in the pilot hole of guider and small trochanteric reduction locating guider.
Described intramedullary pin master nail is avoided guider and is comprised minor arc shape guide rail, auxiliary arc-shaped guide rail, track fastening, main guider and auxiliary guider, wherein, minor arc shape guide rail connects by track fastening with the link of being connected arc-shaped guide rail, main guider and auxiliary guider are gone here and there respectively on minor arc shape guide rail and auxiliary arc-shaped guide rail, and track fastening is fixedly connected with lock handle.
Described track fastening is " door " font bayonet arrangement, and this bayonet arrangement also is fixed on the lock handle by the screw on " door " font bayonet arrangement in the middle of can being stuck in lock handle.
Minor arc shape guide rail is front, and auxiliary arc-shaped guide rail is rear, the trochantinian position of the centrally aligned of the arc of minor arc shape guide rail and auxiliary arc-shaped guide rail but avoid main nail in the marrow.Main guider and auxiliary guider are the guider with pilot hole, and this pilot hole is aimed at the center of two arcs perpendicular to the arc tangent line of arc-shaped slide rail, just can avoid so main nail in the marrow when inserting the lesser trochanter pilot sleeve.Can make a call to a lag screw according to main nail front or rear in marrow of situation in the art during operation fixes lesser trochanter and gets final product.Track fastening is connected with lock handle, is also to be fixed on the lock handle by the screw on " door " shape bayonet arrangement in the middle of " door " font bayonet arrangement is stuck in lock handle.Add " door " font bayonet arrangement at the track fastening place, be stuck on the lock handle fixedly intramedullary pin master nail by bayonet arrangement and avoid guider.This " door " font bayonet arrangement one side adds a screw, by this screw intramedullary pin master nail being avoided guider is fixed on the lock handle, and adjust up and down intramedullary pin master nail according to trochantinian particular location along lock handle and avoid guider, can with lesser trochanter on same plane.
Described small trochanteric reduction locating guider comprises the small trochanteric reduction hook, with lesser trochanter guider and the sliding tray of pilot hole, the two ends of sliding tray are connected with the lesser trochanter guider with the small trochanteric reduction hook respectively.
The pilot hole of described lesser trochanter guider is aimed at the small trochanteric reduction hook, and it is to adjust according to surgery situation that described sliding tray can make the angle between the axis of pilot hole of the shank of small trochanteric reduction hook and lesser trochanter guider.
Described sliding tray comprises holddown groove and sliding tray, shifting chute is embedded in the holddown groove, and holddown groove is connected with sliding tray with the lesser trochanter guider and is connected with the small trochanteric reduction hook, and described holddown groove is provided with sunk structure, described sliding tray is provided with projective structure, and sunk structure and projective structure are suitable.
Described lesser trochanter pilot sleeve is divided into inboard sleeve, intermediate sleeve and outside sleeve, outside sleeve inserts simultaneously intramedullary pin master nail and avoids in the pilot hole of guider and small trochanteric reduction locating guider, inboard sleeve and intermediate sleeve are squeezed into hollow nail guide pin and hollow boring bit by outside sleeve respectively, and outside sleeve is squeezed into effectively fixedly lesser trochanter of cannulated lag screw.
Described inboard sleeve diameter is 2mm, and this inboard sleeve can be squeezed into the hollow nail guide pin that diameter is 2mm.
Described intermediate sleeve internal diameter is 4.5mm, and this intermediate sleeve can insert the 4.5mm bit bore.
Described outside sleeve diameter is 7.5mm, and this outside sleeve can be squeezed into the lag screw that diameter is 5.5mm.
Described outside sleeve outer diameter is 8.5mm, and the external diameter of this outside sleeve is identical with the internal diameter of the pilot hole of main guider, auxiliary guider, lesser trochanter guider.
Use step of the present utility model is:
After the first step, the main sclerite of intertrochanteric fracture resetted, main nail was squeezed into femoral bone cavitas medullaris in the marrow.
Second step, small trochanteric reduction hook catch on the lesser trochanter auxiliary reset, and the lesser trochanter guider is connected shank and is connected by sliding tray with the small trochanteric reduction hook.
The 3rd step, " door " font bayonet arrangement that intramedullary pin master nail is avoided guider are stuck on the square lock handle, avoid guider according to the trochantinian level that resets along lock handle up-down adjustment intramedullary pin master nail, the hold-down screw of tightening on " door " shape bayonet arrangement makes the two closely fixing.
The 4th step, adjusting intramedullary pin master nail are avoided guider and small trochanteric reduction locating guider, make both pilot hole directions consistent.Insert the lesser trochanter pilot sleeve by two pilot holes.In marrow, locate lesser trochanter before or after the main nail according to practical situation in the operation.
The 5th the step, squeeze into the hollow nail guide pin by the inboard sleeve of lesser trochanter pilot sleeve, hole along guide pin by the intermediate sleeve of lesser trochanter pilot sleeve respectively again, be screwed into fixedly lesser trochanter of lag screw by outside sleeve.
After this utility model is fixedly finished in the intertrochanteric fracture marrow, slightly enlarge the operative incision of femur neck screw entrance, by the small trochanteric reduction locating guider lesser trochanter that resets, at the lock handle of marrow internal fixation system intramedullary pin master nail is installed and is avoided guider, cooperate small trochanteric reduction guider and lesser trochanter pilot sleeve, squeeze into hollow nail guide pin and lag screw, make lesser trochanter effectively fixing.Lock handle is connected with the intramedullary pin master and is avoided can effectively avoiding after guider connects main nail in the marrow.The small trochanteric reduction fixed guider can auxiliary reset and location lesser trochanter.The lesser trochanter pilot sleeve can help to squeeze into successively hollow nail guide pin and lag screw.
The beneficial effects of the utility model:
This utility model can finish the main sclerite of intertrochanteric fracture reset fixing after, by the small trochanteric reduction locating guider lesser trochanter that resets, avoid main nail in the marrow, accurately locate lesser trochanter by guider before or after the main nail in marrow according to the concrete condition of small trochanteric reduction.Squeeze into fixedly lesser trochanter of lag screw by lesser trochanter pilot sleeve Wicresoft, stable fracture reduces bone damaged, promotes early healing of fracture, reduces the complication such as malunion of fracture and disunion.
This utility model can make the fixed effect of original marrow internal fixation system better, resetting fixedly when can make intertrochanteric fracture fixing in adopting marrow, lesser trochanter becomes possibility, thereby increase the stability of fracture, make early out-of-bed activity of patient, the complication of the organs such as minimizing patient's the heart, lung, alleviate patient's misery, make the patient return early society.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of small trochanteric reduction locating guider of the present utility model.
Fig. 3 is the A-A schematic cross-section of sliding tray among Fig. 2 of the present utility model.
Fig. 4 is the structural representation of the outside of the present utility model sleeve.
Fig. 5 is the structural representation of intermediate sleeve of the present utility model.
Fig. 6 is the structural representation of inboard sleeve of the present utility model.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.Should be understood that following examples are only for explanation this utility model but not for limiting scope of the present utility model.
As depicted in figs. 1 and 2, small trochanteric reduction fixed guider of the present utility model, comprise that lock handle 1, intramedullary pin master nail avoids guider 2, small trochanteric reduction locating guider 3 and lesser trochanter pilot sleeve 4, intramedullary pin master nail is avoided guider 2 and is fixedly connected with lock handle 1, and lesser trochanter pilot sleeve 4 inserts intramedullary pin master nail and avoids in the pilot hole of guider 2 and small trochanteric reduction locating guider 3.
Described intramedullary pin master nail is avoided guider 2 and is comprised minor arc shape guide rail 21, auxiliary arc-shaped guide rail 22, track fastening 23, main guider 24 and auxiliary guider 25, wherein, minor arc shape guide rail 21 connects by track fastening 23 with the link of being connected arc-shaped guide rail 22, main guider 24 and auxiliary guider 25 are gone here and there respectively on minor arc shape guide rail 21 and auxiliary arc-shaped guide rail 22, and track fastening 23 is fixedly connected with lock handle 1.
Described track fastening 23 is " door " font bayonet arrangement, and this bayonet arrangement also is fixed on the lock handle 1 by the screw 5 on " door " font bayonet arrangement in the middle of can being stuck in lock handle 1.
Minor arc shape guide rail 21 is front, and auxiliary arc-shaped guide rail 22 is rear, the trochantinian position of centrally aligned of the arc of minor arc shape guide rail 21 and auxiliary arc-shaped guide rail 22 but avoid main nail 6 in the marrow.Main guider 24 and auxiliary guider 25 are the guider with pilot hole, and this pilot hole is aimed at the center of two arcs perpendicular to the arc tangent line of arc-shaped slide rail, just can avoid so main nail 6 in the marrow when inserting lesser trochanter pilot sleeve 4.Can make a call to a lag screw according to main nail 6 front or rear in marrow of situation in the art during operation fixes lesser trochanter and gets final product.Track fastening 23 is connected connection with lock handle, be in the middle of " door " font bayonet arrangement is stuck in lock handle 1 and be fixed on the lock handle 1 by the screw 5 on " door " shape bayonet arrangement.Add " door " font bayonet arrangement at track fastening 23 places, be stuck on the lock handle 1 fixedly intramedullary pin master nail by bayonet arrangement and avoid guider 2.This " door " font bayonet arrangement one side adds a screw 5, by this screw 5 intramedullary pin master nail being avoided guider 2 is fixed on the lock handle 1, and adjust up and down intramedullary pin master nail according to trochantinian particular location along lock handle 1 and avoid guider 2, can with lesser trochanter on same plane.
Described small trochanteric reduction locating guider 3 comprises small trochanteric reduction hook 31, with lesser trochanter guider 32 and the sliding tray 33 of pilot hole, are connected with the lesser trochanter guider with small trochanteric reduction hook 31 respectively and are connected in the two ends of sliding tray 33.
The pilot hole of described lesser trochanter guider 32 is aimed at small trochanteric reduction hook 31, and it is to adjust according to surgery situation that described sliding tray 33 can make the angle between the axis of pilot hole of the shank of small trochanteric reduction hook 31 and lesser trochanter guider 32.
As shown in Figure 3, described sliding tray 33 comprises holddown groove 331 and shifting chute 332, shifting chute 332 is embedded in the holddown groove 331, holddown groove 331 is connected with shifting chute to be connected with the small trochanteric reduction hook with lesser trochanter guider 32 respectively and is connected, described holddown groove 331 is provided with sunk structure 3311, described shifting chute 332 is provided with projective structure 3321, and sunk structure 3311 is suitable with projective structure 3321.
As depicted in figs. 1 and 2, described lesser trochanter pilot sleeve 4 is divided into inboard sleeve 41, intermediate sleeve 42 and outside sleeve 43, outside sleeve 43 inserts simultaneously intramedullary pin master nail and avoids in the pilot hole of guider 2 and small trochanteric reduction locating guider 3, inboard sleeve 41 and intermediate sleeve 42 are squeezed into hollow nail guide pin and hollow boring bit by outside sleeve 43 respectively, and outside sleeve 43 is squeezed into effectively fixedly lesser trochanter of cannulated lag screw.
As shown in Figure 6, described inboard sleeve 41 internal diameters are 2mm, and this inboard sleeve 41 can be squeezed into the hollow nail guide pin that diameter is 2mm.
As shown in Figure 5, described intermediate sleeve 42 internal diameters are 4.5mm, and this intermediate sleeve 42 can insert the 4.5mm bit bore.
As shown in Figure 4, described outside sleeve 43 internal diameters are 7.5mm, and this outside sleeve 43 can be squeezed into the lag screw that diameter is 5.5mm.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, described outside sleeve 43 external diameters are 8.5mm, and the external diameter of this outside sleeve 43 is identical with the internal diameter of the pilot hole of main guider 24, auxiliary guider 25, lesser trochanter guider 32.
Use step of the present utility model is:
After the first step, the main sclerite of intertrochanteric fracture resetted, main nail 6 was squeezed into femoral bone cavitas medullaris in the marrow.
Second step, small trochanteric reduction hook 31 catch on the lesser trochanter auxiliary reset, and the shank that lesser trochanter guider 32 is connected with the small trochanteric reduction hook connects by sliding tray 33.
The 3rd step, " door " font bayonet arrangement that intramedullary pin master nail is avoided guider 2 are stuck on the square lock handle 1, avoid guider 2 according to the trochantinian level that resets along lock handle 1 up-down adjustment intramedullary pin master nail, the hold-down screw 5 of tightening on " door " shape bayonet arrangement makes the two closely fixing.
The 4th step, adjusting intramedullary pin master nail are avoided guider 2 and small trochanteric reduction locating guider 3, make both pilot hole directions consistent.Insert lesser trochanter pilot sleeve 4 by two pilot holes.In marrow, locate lesser trochanter before or after the main nail 6 according to practical situation in the operation.
The 5th step, squeeze into the hollow nail guide pin by the inboard sleeve 41 of lesser trochanter pilot sleeve 4, the intermediate sleeve 42 by lesser trochanter pilot sleeve 4 is screwed into fixedly lesser trochanter of lag screw along guide pin boring by outside sleeve 43 respectively again.
After this utility model is fixedly finished in the intertrochanteric fracture marrow, slightly enlarge the operative incision of femur neck screw entrance, by small trochanteric reduction locating guider 3 lesser trochanter that resets, at the lock handle 1 of marrow internal fixation system intramedullary pin master nail is installed and is avoided guider 2, cooperate small trochanteric reduction guider and lesser trochanter pilot sleeve 4, squeeze into hollow nail guide pin and lag screw, make lesser trochanter effectively fixing.Lock handle 1 is connected with the intramedullary pin master and is avoided can effectively avoiding main nail 6 in the marrow after guider 2 connects.The small trochanteric reduction fixed guider can auxiliary reset and location lesser trochanter.Lesser trochanter pilot sleeve 4 can help to squeeze into successively hollow nail guide pin and lag screw.
The beneficial effects of the utility model:
This utility model can finish the main sclerite of intertrochanteric fracture reset fixing after, by the small trochanteric reduction fixed guider lesser trochanter that resets, avoid main nail 6 in the marrow, accurately locate lesser trochanter by guider before or after the main nail 6 in marrow according to the concrete condition of small trochanteric reduction.Squeeze into fixedly lesser trochanter of lag screw by lesser trochanter pilot sleeve 4 Wicresofts, stable fracture reduces bone damaged, promotes early healing of fracture, reduces the complication such as malunion of fracture and disunion.
This utility model can make the fixed effect of original marrow internal fixation system better, resetting fixedly when can make intertrochanteric fracture fixing in adopting marrow, lesser trochanter becomes possibility, thereby increase the stability of fracture, make early out-of-bed activity of patient, the complication of the organs such as minimizing patient's the heart, lung, alleviate patient's misery, make the patient return early society.
Claims (8)
1. small trochanteric reduction fixed guider, it is characterized in that, comprise that lock handle, intramedullary pin master nail avoids guider, small trochanteric reduction locating guider and lesser trochanter pilot sleeve, intramedullary pin master nail is avoided guider and is fixedly connected with lock handle, and the lesser trochanter pilot sleeve inserts intramedullary pin master nail and avoids in the pilot hole of guider and small trochanteric reduction locating guider;
Described intramedullary pin master nail is avoided guider and is comprised minor arc shape guide rail, auxiliary arc-shaped guide rail, track fastening, main guider and auxiliary guider, wherein, minor arc shape guide rail connects by track fastening with the link of being connected arc-shaped guide rail, main guider and auxiliary guider are gone here and there respectively on minor arc shape guide rail and auxiliary arc-shaped guide rail, and track fastening is fixedly connected with lock handle.
2. small trochanteric reduction fixed guider as claimed in claim 1, it is characterized in that, described track fastening is " door " font bayonet arrangement, and this bayonet arrangement also is fixed on the lock handle by the screw on " door " font bayonet arrangement in the middle of can being stuck in lock handle.
3. small trochanteric reduction fixed guider as claimed in claim 1, it is characterized in that, described small trochanteric reduction locating guider comprises the small trochanteric reduction hook, with lesser trochanter guider and the sliding tray of pilot hole, the two ends of sliding tray are connected with the lesser trochanter guider with the small trochanteric reduction hook respectively.
4. small trochanteric reduction fixed guider as claimed in claim 3, it is characterized in that, described sliding tray comprises holddown groove and shifting chute, shifting chute is embedded in the holddown groove, holddown groove is connected with shifting chute with the lesser trochanter guider and is connected with the small trochanteric reduction hook, described holddown groove is provided with sunk structure, and described shifting chute is provided with projective structure, and sunk structure and projective structure are suitable.
5. small trochanteric reduction fixed guider as claimed in claim 1, it is characterized in that, described lesser trochanter pilot sleeve is divided into inboard sleeve, intermediate sleeve and outside sleeve, outside sleeve inserts simultaneously intramedullary pin master nail and avoids in the pilot hole of guider and small trochanteric reduction locating guider, and inboard sleeve and intermediate sleeve are squeezed into hollow nail guide pin and hollow boring bit by outside sleeve respectively.
6. small trochanteric reduction fixed guider as claimed in claim 5 is characterized in that, described inboard sleeve diameter is 2mm, and this inboard sleeve can be squeezed into the hollow nail guide pin that diameter is 2mm.
7. small trochanteric reduction fixed guider as claimed in claim 5 is characterized in that, described intermediate sleeve internal diameter is 4.5mm, and this intermediate sleeve can insert the 4.5mm bit bore.
8. small trochanteric reduction fixed guider as claimed in claim 5 is characterized in that, described outside sleeve diameter is 7.5mm, and this outside sleeve can be squeezed into the lag screw that diameter is 5.5mm;
Described outside sleeve outer diameter is 8.5mm, and the external diameter of this outside sleeve is identical with the internal diameter of the pilot hole of main guider, auxiliary guider, lesser trochanter guider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332892 CN202843775U (en) | 2012-07-10 | 2012-07-10 | Lesser trochanter reset fixture guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332892 CN202843775U (en) | 2012-07-10 | 2012-07-10 | Lesser trochanter reset fixture guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202843775U true CN202843775U (en) | 2013-04-03 |
Family
ID=47975024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220332892 Expired - Lifetime CN202843775U (en) | 2012-07-10 | 2012-07-10 | Lesser trochanter reset fixture guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202843775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618719A (en) * | 2017-01-11 | 2017-05-10 | 海口市人民医院 | Hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of thigh bone from rear side |
| CN108836465A (en) * | 2018-04-26 | 2018-11-20 | 朱由兵 | A kind of fixed device of clinic bone fracture surgery lesser trochanter of femur |
-
2012
- 2012-07-10 CN CN 201220332892 patent/CN202843775U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618719A (en) * | 2017-01-11 | 2017-05-10 | 海口市人民医院 | Hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of thigh bone from rear side |
| CN108836465A (en) * | 2018-04-26 | 2018-11-20 | 朱由兵 | A kind of fixed device of clinic bone fracture surgery lesser trochanter of femur |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |