CN204484277U - Neck of femur localizer - Google Patents
Neck of femur localizer Download PDFInfo
- Publication number
- CN204484277U CN204484277U CN201520121051.XU CN201520121051U CN204484277U CN 204484277 U CN204484277 U CN 204484277U CN 201520121051 U CN201520121051 U CN 201520121051U CN 204484277 U CN204484277 U CN 204484277U
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- retainer body
- neck
- femur
- hole
- guide pin
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Abstract
This utility model belongs to technical field of medical instruments, specifically a kind of neck of femur localizer, pierces the inaccurate problem in location for solving fracture of femoral neck or intertrochanteric fracture operation hollow core screw or dynamic hip screw guide pin.Its structure comprises retainer body, handle, locating hole screw.Localizer is provided with 8 front and back to be run through and the through hole be parallel to each other, comprise 1 centre bore, 2 upper-side holes, 2 lower-side holes, 1 anti-trepanning and 2 locating holes, locating hole and centre bore, side opening and anti-trepanning are integrally designed, realization is parallel to each other, angle is fixed, and when the disposable solution guide pin of energy pierces, collodiaphyseal angle and top rake are difficult to simultaneously problem accurately.Its structure is simple, easy to operate, is conducive to shortening operating time, reduces fluoroscopy during operation number of times, reduces medical worker and patient's ray suction volume, to reduce in patient's art wound and loses blood.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of neck of femur localizer.
Background technology
Fracture of femoral neck or intertrochanteric fracture carry out screw and pegboard systems when fixing, and first will squeeze into neck of femur guide pin, and beat guide pin and mainly control collodiaphyseal angle and top rake.At present the collodiaphyseal angle of guide pin is controlled there has been accurate, easy sighting device, and the control of top rake is still rested on the basis of micro-judgment; In addition, fracture of femoral neck adopts hollow screw when fixing, and three pieces of guide pin positions need repeatedly to adjust in art, and is difficult to guarantee and is parallel to each other, and becomes Operative Puzzle.Neck of femur sight can control the most complicated operation of device of top rake, and effect is imprecise and can not apply very well.When squeezing into guide pin clinically, because the control of top rake lacks bone mark, become operation difficulties.And position, side fluoroscopy during operation relative complex, definition is not good enough yet, and Chang Yinwei adjusts top rake and wastes a lot of time.Because neck of femur and intertrochanteric fracture mostly are old people, extend operating time and considerably increase risk, and loose owing to fracturing, and top rake to the front with to the rear is also the major reason causing postoperative screw to pass neck of femur cutting.
Summary of the invention
This utility model locates inaccurate problem for solving above-mentioned neck of femur, provides that a kind of structure is simple, easy to operate, the neck of femur localizer of accurate positioning.
Technical scheme
This utility model neck of femur localizer comprises retainer body 1, handle 2, locating hole screw 3.Retainer body 1 is in convex blocks, and front and rear end is parallel.Described neck of femur localizer is provided with 8 for determining the guide through hole of guide pin position and direction, this guide through hole is wholy set on retainer body 1, before and after be parallel to each other through retainer body 1, be inclined upwardly from front to back, the included angle B of its hole axle and retainer body 1 front end face equals femoral neck shaft angle A, comprising:
1 centre bore 5, is positioned in the middle part of retainer body 1;
1 anti-trepanning 6, is positioned at centre position, retainer body 1 upper end, prevents revolving guide pin for piercing;
2 upper-side holes 7, are positioned at retainer body 1 upper end, and anti-trepanning 6 both sides, are symmetrically arranged;
2 lower-side holes 8, are positioned in the middle part of retainer body 1, and centre bore 5 both sides, are symmetrically arranged;
2 locating holes 4, are positioned at position, both sides, retainer body 1 lower end, are symmetrically arranged, for inserting location guide pin;
The rear end face of retainer body 1 is provided with a vertical arcuate groove, and left and right side is respectively provided with the screwed hole that communicates vertical with locating hole 4, for screwing in locating hole screw 3, is fixed by the location guide pin inserting locating hole 4.Handle 2 is fixed on the upper surface of retainer body 1 by being threaded, for gripping localizer;
When fracture of femoral neck or femoral intertrochanteric fracture with operation are fixed, by outer fix under localizer rear end face arcuate groove laminating femoral greater trochanter after the reduction of the fracture, location guide pin is hammered into a joint portion, footpath through locating hole 4 along lower edge before neck of femur, location guide pin 9 is fixed by screwed in place hole screw 3, guide pin is pierced as required again by centre bore 5, anti-trepanning 6, upper-side hole 7, lower-side hole 8, get except adopting core drill to hole after localizer, be screwed into 3 pieces of hollow screws of suitable length, or dynamic hip screw be installed and prevent revolving screw;
In technique scheme, determine the included angle B of centre bore 5, anti-trepanning 6, upper-side hole 7, lower-side hole 8, locating hole 4 and retainer body 1 front end face according to adult thighbone collodiaphyseal angle A meansigma methods (130 degree).The spacing between each hole is designed: design spacing between each hole according to adult thighbone neck anteroposterior diameter meansigma methods, up and down footpath meansigma methods according to neck of femur anteroposterior diameter, up and down footpath, for neck of femur, person bigger than normal or less than normal suitably can increase or reduce spacing between each hole, carries out typing design;
In technique scheme, under retainer body 1 rear end face arc groove face and femoral greater trochanter, outside arcwall face adapts, and this arcuate groove favours retainer body 1 rear end face, the angle C of its inclination angle D and greater trochanter inferolateral surface and the femur longitudinal axis adapts, when localizer being fitted be placed on outside under femoral greater trochanter, before localizer, rear end face is parallel to femur longitudinal axis, to ensure that guide pin pierces along the direction of neck of femur axis being parallel, guarantee that three pieces of hollow screws are parallel to each other, do not touch nail, do not pass, or guarantee that the main nail of dynamic hip screw is screwed into, steel plate is inserted in back side panel and femoral shaft lateral surface sticks, be screwed into anti-to revolve screw parallel with main nail, do not touch nail, do not pass,
When the disposable solution guide pin of technique scheme energy pierces, collodiaphyseal angle and top rake are difficult to simultaneously problem accurately, ensure that the main nail of dynamic hip screw and anti-rotation nail are squeezed into accurate and 3 pieces of hollow nail implantation sites are accurate.This utility model takes into full account, utilize femur footpath anteroposterior diameter and upper and lower footpath value, neck of femur hollow screw and dynamic hip screw specification is commonly used in conjunction with present stage, locating hole and centre bore, side opening and anti-trepanning are integrally designed, and be parallel to each other, angle is fixed.After determining by positioning needle and the neck of femur axial line of crossing locating hole are three-dimensional parallel, centre bore and side opening, the guide pin of anti-trepanning and neck of femur centerline axis parallel can be determined, without the need to again by repeatedly piercing guide pin to regulate front and back, upper-lower position and angle.Can operating time be shortened, can ensure that again inserting needle fixes accuracy;
When this utility model is fixed for intertrochanteric fracture of the femur DHS, under ensureing that main nail is positioned at neck of femur center deviation, add and not intersecting with preventing revolving screw parallel with main nail, touching nail, prevent femoral head neck from rotating, play stable fixation, ensure the performance of slip pressurization.When fixing for fracture of femoral neck hollow screw, can ensure that three pieces of hollow screws are del or isosceles triangle arrangement, parallel to each other, do not intersect, touch nail, do not pass neck of femur, neck of femur inner bolt is uniformly distributed, stable fixing, fracture end is in the pressurization stationary state that slides all the time, and section fully contacts, Promotive union.Do not need needle selection in operation, once can successfully squeeze into.Next is conducive to shortening operating time, reduces fluoroscopy during operation number of times, reduces medical worker and patient's ray suction volume, to reduce in patient's art wound and loses blood.
Beneficial effect
Locating hole and centre bore, side opening and anti-trepanning integrally design by this utility model, realization is parallel to each other, angle is fixed, when the disposable solution guide pin of energy pierces, collodiaphyseal angle and top rake are difficult to simultaneously problem accurately, be conducive to shortening operating time, reduce fluoroscopy during operation number of times, reduce medical worker and patient's ray suction volume, to reduce in patient's art wound and lose blood.
accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, this utility model is further illustrated;
Fig. 1 is this utility model structural upright schematic diagram;
Fig. 2 is retainer body and is connected to the front view of locating hole screw;
Fig. 3 is the left view of retainer body;
Fig. 4 is the top view of retainer body;
Fig. 5 is that this utility model hammers into location guide pin and prevents structural upright schematic diagram when revolving guide pin;
In figure: 1-retainer body; 2-hands handle; 3-locating hole screw; 4-locating hole; 5-centre bore; 6-anti-trepanning; 7-upper-side hole; 8-lower-side hole; 9-location guide pin; 10-prevent revolving guide pin; 11-femur.
detailed description of the invention:
As shown in Figures 1 to 5, this utility model comprises retainer body 1, handle 2, locating hole screw 3.Retainer body 1 is in convex blocks, and front and rear end is parallel.Described neck of femur localizer is provided with 8 for determining the guide through hole of guide pin position and direction, this guide through hole is wholy set on retainer body 1, before and after be parallel to each other through retainer body 1, be inclined upwardly from front to back, the included angle B of its hole axle and retainer body 1 front end face equals femoral neck shaft angle A, comprising:
1 centre bore 5, is positioned in the middle part of retainer body 1;
1 anti-trepanning 6, is positioned at centre position, retainer body 1 upper end, prevents revolving guide pin 10 for piercing;
2 upper-side holes 7, are positioned at retainer body 1 upper end, and anti-trepanning 6 both sides, are symmetrically arranged;
2 lower-side holes 8, are positioned in the middle part of retainer body 1, and centre bore 5 both sides, are symmetrically arranged;
2 locating holes 4, are positioned at position, both sides, retainer body 1 lower end, are symmetrically arranged, for inserting location guide pin 9;
The rear end face of retainer body 1 is provided with a vertical arcuate groove, and left and right side is respectively provided with the screwed hole that communicates vertical with locating hole 4, for screwing in locating hole screw 3, is fixed by the location guide pin 9 inserting locating hole 4.Handle 2 is fixed on the upper surface of retainer body 1 by being threaded, for gripping localizer;
When fracture of femoral neck or femoral intertrochanteric fracture with operation are fixed, by outer fix under localizer rear end face arcuate groove laminating femoral greater trochanter after the reduction of the fracture, location guide pin 9 is hammered into a joint portion, footpath through locating hole 4 along lower edge before neck of femur, location guide pin 9 is fixed by screwed in place hole screw 3, guide pin is pierced as required again by centre bore 5, anti-trepanning 6, upper-side hole 7, lower-side hole 8, get except adopting core drill to hole after localizer, be screwed into 3 pieces of hollow screws of suitable length, or dynamic hip screw be installed and prevent revolving screw;
In above-mentioned embodiment, determine the included angle B of centre bore 5, anti-trepanning 6, upper-side hole 7, lower-side hole 8, locating hole 4 and retainer body 1 front end face according to adult thighbone collodiaphyseal angle A meansigma methods (130 degree).The spacing between each hole is designed: design spacing between each hole according to adult thighbone neck anteroposterior diameter meansigma methods, up and down footpath meansigma methods according to neck of femur anteroposterior diameter, up and down footpath, for neck of femur, person bigger than normal or less than normal suitably can increase or reduce spacing between each hole, carries out typing design;
In above-mentioned embodiment, under retainer body 1 rear end face arc groove face and femoral greater trochanter, outside arcwall face adapts, and this arcuate groove favours retainer body 1 rear end face, the angle C of its inclination angle D and greater trochanter inferolateral surface and the femur longitudinal axis adapts, when localizer being fitted be placed on outside under femoral greater trochanter, before localizer, rear end face is parallel to femur longitudinal axis, to ensure that guide pin pierces along the direction of neck of femur axis being parallel, guarantee that three pieces of hollow screws are parallel to each other, do not touch nail, do not pass, or guarantee that the main nail of dynamic hip screw is screwed into, steel plate is inserted in back side panel and femoral shaft lateral surface sticks, be screwed into anti-to revolve screw parallel with main nail, do not touch nail, do not pass.
Using method: in art after intertrochanteric fracture of the femur or fracture of femoral neck reduction by traction, localizer is placed in outside under femoral greater trochanter, be close to lateral side of femur cortex, with femur longitudinal axis, positioning needle is put into after locating hole, paste femur leading edge to stretch into, cause positioning needle and reach femoral head-neck joint portion and now can run into stop.Now can fluoroscopic observation positioning needle position, as parallel with neck of femur lower edge and overlapping, guide pin can be pierced at centre bore, anti-trepanning and side opening.As fixed with 3 pieces of hollow screws, upper-side hole 7 and centre bore 5 can be selected to combine or anti-trepanning 6 is carried out guide pin with lower-side hole 8 and squeezed into, according to the length of preoperative measurement neck of femur, estimate that guide pin pierces the degree of depth, bore namely desirable except localizer, then carry out core drill reaming, be screwed into hollow screw respectively.Preventing that as added with dynamic hip screw revolving screw fixes, and can select to squeeze into guide pin at centre bore and anti-trepanning place, select the main nail of appropriate length and anti-rotation nail after reaming, being screwed into main nail successively, nail-plate is installed and prevents revolving screw.
Points for attention in operating process: 1, positioning needle placement can not be crossed dark or on the lower side, otherwise have damage stock arteriovenous, neural possibility; 2, preoperatively depth of needle need be estimated, to control depth of needle, accurately inserting needle in art; 3, reliable when localizer is placed, positioning needle is crossed locating hole and when neck of femur leading edge inserting needle, is pasted cortical bone slowly put into, the maintenance localizer longitudinal axis and femur longitudinal axis, and positioning needle inserting needle reaches head and neck joint portion for ideal with syringe needle; Otherwise location is inaccurate, when piercing hollow nail, the main nail of dynamic coxa and anti-rotation nail guide pin, there is deviation, do not reach ideal and fix and put; 4, carry out the main nail reaming of dynamic coxa, be screwed into and nail-plate places time anti-rotation nail guide pin and side opening guide pin can not pull out, ensure position stability after the reduction of the fracture, constant.
Claims (2)
1. a neck of femur localizer, is characterized in that: comprise retainer body (1), handle (2), locating hole screw (3); Described retainer body (1) is in convex blocks, and front and rear end is parallel; Described neck of femur localizer is provided with 8 for determining the guide through hole of guide pin position and direction, this guide through hole is wholy set on retainer body (1), before and after be parallel to each other through retainer body (1), be inclined upwardly from front to back, the included angle B of its hole axle and retainer body (1) front end face equals femoral neck shaft angle A, comprising:
1 centre bore (5), is positioned at retainer body (1) middle part;
1 anti-trepanning (6), is positioned at retainer body (1) centre position, upper end, prevents revolving guide pin for piercing;
2 upper-side holes (7), are positioned at retainer body (1) upper end, and anti-trepanning (6) both sides, are symmetrically arranged;
2 lower-side holes (8), be positioned at retainer body (1) middle part, centre bore (5) both sides, are symmetrically arranged;
2 locating holes (4), are positioned at position, retainer body (1) both sides, lower end, are symmetrically arranged, for inserting location guide pin;
The rear end face of described retainer body (1) is provided with a vertical arcuate groove, and left and right side is respectively provided with the screwed hole that communicates vertical with locating hole (4), for screwing in locating hole screw (3), is fixed by the location guide pin inserting locating hole (4); Described handle (2) is fixed on the upper surface of retainer body (1) by being threaded, for gripping localizer;
When fracture of femoral neck or femoral intertrochanteric fracture with operation are fixed, by outer fix under localizer rear end face arcuate groove laminating femoral greater trochanter after the reduction of the fracture, guide pin will be located and hammer into a joint portion, footpath through locating hole (4) along lower edge before neck of femur, location guide pin is fixed by screwed in place hole screw (3), guide pin is pierced as required again by centre bore (5), anti-trepanning (6), upper-side hole (7), lower-side hole (8), get except adopting core drill to hole after localizer, be screwed into 3 pieces of hollow screws of suitable length, or dynamic hip screw be installed and prevent revolving screw.
2. neck of femur localizer according to claim 1, it is characterized in that: under described retainer body (1) rear end face arc groove face and femoral greater trochanter, outside arcwall face adapts, and this arcuate groove favours retainer body (1) rear end face, the angle C of its inclination angle D and greater trochanter inferolateral surface and the femur longitudinal axis adapts, when localizer being fitted be placed on outside under femoral greater trochanter, before localizer, rear end face is parallel to femur longitudinal axis, to ensure that guide pin pierces along the direction of neck of femur axis being parallel, guarantee that three pieces of hollow screws are parallel to each other, do not touch nail, do not pass, or guarantee that the main nail of dynamic hip screw is screwed into, steel plate is inserted in back side panel and femoral shaft lateral surface sticks, be screwed into anti-to revolve screw parallel with main nail, do not touch nail, do not pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121051.XU CN204484277U (en) | 2015-03-02 | 2015-03-02 | Neck of femur localizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121051.XU CN204484277U (en) | 2015-03-02 | 2015-03-02 | Neck of femur localizer |
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| Publication Number | Publication Date |
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| CN204484277U true CN204484277U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520121051.XU Expired - Fee Related CN204484277U (en) | 2015-03-02 | 2015-03-02 | Neck of femur localizer |
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| CN (1) | CN204484277U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615979A (en) * | 2016-03-18 | 2016-06-01 | 高开拓 | Auxiliary device used in PFNA (proximal femoral nail anti-rotation) internal fixation surgery |
| CN106344156A (en) * | 2016-11-25 | 2017-01-25 | 中山市中医院（广州中医药大学附属中山中医院） | Three-dimensional reverse customization femoral neck fracture surgical navigator and using method thereof |
| CN106725820A (en) * | 2017-01-11 | 2017-05-31 | 邓迎生 | Torsion angle reference system fixed point is wrong before neck of femur aims at hollow nail fixed system away from guide pin |
| CN107961069A (en) * | 2017-12-19 | 2018-04-27 | 暨南大学 | A kind of fracture of neck of femur hollow screw inserts guider |
| CN109223197A (en) * | 2018-11-16 | 2019-01-18 | 陈聚伍 | Fracture of neck of femur hollow nail rotating disc type positioning device |
| CN109846529A (en) * | 2019-03-26 | 2019-06-07 | 上海贝奥路生物材料有限公司 | Femoral head guide pin locator |
| CN110432970A (en) * | 2019-07-18 | 2019-11-12 | 杨淑野 | A kind of neck of femur Kirschner wire positioning adjustment system |
| CN112842505A (en) * | 2021-01-29 | 2021-05-28 | 西南医科大学附属中医医院 | Percutaneous minimally invasive hollow screw internal fixation guiding positioner for femoral neck and intertrochanteric fracture |
| CN114869442A (en) * | 2022-04-24 | 2022-08-09 | 中南大学湘雅医院 | Screw guide for femoral neck fracture open reduction and use method thereof |
-
2015
- 2015-03-02 CN CN201520121051.XU patent/CN204484277U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615979B (en) * | 2016-03-18 | 2018-01-02 | 高开拓 | A kind of servicing unit in intramedullary nail internal fixation operation |
| CN105615979A (en) * | 2016-03-18 | 2016-06-01 | 高开拓 | Auxiliary device used in PFNA (proximal femoral nail anti-rotation) internal fixation surgery |
| CN106344156A (en) * | 2016-11-25 | 2017-01-25 | 中山市中医院（广州中医药大学附属中山中医院） | Three-dimensional reverse customization femoral neck fracture surgical navigator and using method thereof |
| CN106725820B (en) * | 2017-01-11 | 2023-05-16 | 邓迎生 | Femoral neck front torsion angle reference system-fixed point offset guide needle aiming hollow nail fixing system |
| CN106725820A (en) * | 2017-01-11 | 2017-05-31 | 邓迎生 | Torsion angle reference system fixed point is wrong before neck of femur aims at hollow nail fixed system away from guide pin |
| CN107961069A (en) * | 2017-12-19 | 2018-04-27 | 暨南大学 | A kind of fracture of neck of femur hollow screw inserts guider |
| CN107961069B (en) * | 2017-12-19 | 2023-06-06 | 暨南大学 | Guide is put into to hollow screw of femur neck fracture |
| CN109223197A (en) * | 2018-11-16 | 2019-01-18 | 陈聚伍 | Fracture of neck of femur hollow nail rotating disc type positioning device |
| CN109223197B (en) * | 2018-11-16 | 2024-05-07 | 陈聚伍 | Rotary disc type positioner for femur neck fracture hollow nail |
| CN109846529A (en) * | 2019-03-26 | 2019-06-07 | 上海贝奥路生物材料有限公司 | Femoral head guide pin locator |
| CN109846529B (en) * | 2019-03-26 | 2023-11-28 | 上海贝奥路生物材料有限公司 | Femoral head guide needle positioner |
| CN110432970A (en) * | 2019-07-18 | 2019-11-12 | 杨淑野 | A kind of neck of femur Kirschner wire positioning adjustment system |
| CN112842505A (en) * | 2021-01-29 | 2021-05-28 | 西南医科大学附属中医医院 | Percutaneous minimally invasive hollow screw internal fixation guiding positioner for femoral neck and intertrochanteric fracture |
| CN114869442A (en) * | 2022-04-24 | 2022-08-09 | 中南大学湘雅医院 | Screw guide for femoral neck fracture open reduction and use method thereof |
| CN114869442B (en) * | 2022-04-24 | 2024-04-26 | 中南大学湘雅医院 | Screw guide for open reduction of femoral neck fracture and method of use thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20170302 |