CN216495603U

CN216495603U - Improved femoral neck screw guider

Info

Publication number: CN216495603U
Application number: CN202121286281.3U
Authority: CN
Inventors: 陈源; 黄华; 何焕民; 高志敏; 梁毅; 张泽远; 覃洋海; 赵峥峥; 孙勇; 周铁军
Original assignee: NANNING HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Current assignee: NANNING HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-05-13
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses an improved femoral neck screw guider, which is characterized by comprising: an operating handle, a fixed plate, a guide pin sleeve and a transition rod; one end of the transition rod is fixedly connected with the operating handle, the other end of the transition rod is fixedly connected with the fixing plate, and the guide pin sleeve is fixedly connected to one side of the fixing plate; the guider is improved on the basis of the traditional guider, the fixing plate attached to the surface of the femur is optimized, the contact area of the fixing plate is enlarged, and meanwhile, the concave surface design is made on one side of the contact surface of the fixing plate, so that the guider can be attached to the surface of the femur more tightly, the stability of fixing the device is improved, and the whole device is not easy to shift when a femoral neck screw guide pin is guided; the guider provides a guide angle reference of a shaft angle and a front rake angle for implanting the femoral neck screw, so that the angle of the femoral neck screw implanted into the femoral neck is easy to control, the accuracy and the success rate of femoral neck screw implantation are improved, and the improvement of operation quality is facilitated.

Description

Improved femoral neck screw guider

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an improved femoral neck screw guider.

Background

Femoral neck fracture and intertrochanteric fracture are very common in orthopedics clinic and are frequently generated in the elderly. Artificial semi-hip or total hip replacement surgery is a common treatment for elderly patients, and internal fixation may also be used for young patients or certain types of fractures. Such as: the femoral neck fracture without displacement can be fixed by 3 hollow compression screws; the stable intertrochanteric fracture of femur can be fixed by adopting a sliding hip screw system; can obtain good mechanical stability, obtain good treatment effect and do not need artificial hip joint replacement.

In the internal fixation operation of femoral neck fracture and intertrochanteric fracture, whether a femoral neck screw can be implanted smoothly is a key step of success or failure of the operation.

At present, the implantation of the femoral neck screw mainly has the following defects:

among the prior art femoral neck screw guider, simple structure generally is equipped with three guiding hole, and the location of focusing on the shaft angle of neck exists the not accurate scheduling problem of anteversion angle direction, leads to the final anteversion angle that femoral neck screw was planted to produce great deviation, appears the condition that the screw surely goes out the femoral head or beats femoral head surface easily, finally causes the operation failure, causes unnecessary pain for the patient, increases disability rate, the sick and dead rate.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model designs an improved femoral neck screw guider which is improved on the basis of the traditional guider, firstly, a fixing plate attached to the outer side surface of the upper section of a femur is optimized, the contact area of the fixing plate is increased, and meanwhile, a concave surface design is made on one side of the contact surface of the fixing plate, so that the fixing device can be attached to the surface of the femur more tightly, the stability of the fixing device is improved, and the whole device is ensured not to be easily displaced when a femoral neck screw is guided to be implanted, so that the implantation angle of the femoral neck screw is changed; secondly, this director is fixed at its outer fringe and is added the guide pin pipe that is equipped with, certain angle (130) have between this sleeve pipe and the fixed plate, promptly the neck angle, wear to put a guide pin in the pipe in the in-service use, this guide pin hugs closely in thighbone neck front side surface, for implanting thighbone neck screw provides the direction angle reference of a neck angle and anteverted angle, the guide pin of thighbone neck screw only need refer to the angle puncture of outside guide pin get into the thighbone neck can, so, through the reference contrast of outside guide pin, make thighbone neck screw direction of implanting, the angle is easily mastered, the deviation is difficult to appear, the accuracy and the success rate of thighbone neck screw implantation have been improved, avoid wearing out the femoral head and lead to the operation failure, help the improvement of operation quality.

In order to achieve the technical effects, the utility model is realized by the following technical scheme: an improved femoral neck screw guide, comprising: an operating handle, a fixed plate, a guide pin sleeve and a transition rod;

one end of the transition rod is fixedly connected with the operating handle, the other end of the transition rod is fixedly connected with the fixing plate, and the guide pin sleeve is fixedly connected to one side of the fixing plate;

furthermore, the fixing plate is attached to one side of the femur in a concave shape, a femoral neck screw guide hole is formed in the fixing plate, and the operating handle is fixedly connected to the outer side of the fixing plate through a transition rod;

further, the central line of the guide hole of the cervical screw is parallel to the central line of the guide pin sleeve;

the utility model has the beneficial effects that:

1. the device is optimized on a fixing plate attached to the outer side surface of the upper section of the femur, the contact area of the fixing plate is increased, and meanwhile, a concave surface design is made on one side of the contact surface of the fixing plate, so that the fixing device can be attached to the surface of the femur more tightly, the stability of fixing the device is improved, and the whole device is not easy to shift when a femoral neck screw guide pin is worn, so that the implantation angle of the femoral neck screw is changed;

2. this director is fixed at its outer fringe and is added and be equipped with the guide pin pipe, certain angle (130) have between this sleeve pipe and the fixed plate, wear to put a guide pin at the intraductal bushing in the in-service use, this guide pin is hugged closely in thighbone neck anterior surface, for implanting thighbone neck screw provides the direction angle reference of a neck angle and anteverter angle, the guide pin of thighbone neck screw only need refer to the angle puncture of outside guide pin get into the thighbone neck can, so, through the contrast of reference of outside guide pin, make the direction that thighbone neck screw was implanted, the angle is easily mastered, the deviation is difficult to appear, the rate of accuracy and the success rate that thighbone neck screw was implanted have been improved, avoid wearing out the thighbone and lead to the operation failure, help the improvement of operation quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall construction of an improved femoral neck screw guide;

FIG. 2 is a schematic view of the assembly of the cervical screw and guide pin of an improved femoral neck screw guide;

FIG. 3 is a schematic view of a femoral neck screw implant of an improved femoral neck screw guide;

in the drawings, the components represented by the respective reference numerals are listed below:

1-as a handle, 2-a transition rod, 3-a fixing plate, 301-a femoral neck screw guide hole, 4-a guide pin sleeve, 5-a femoral neck screw, 6-a guide pin and 7-a femoral neck.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, an improved femoral neck screw guide, comprising: an operating handle 1, a fixing plate 3, a guide pin sleeve 4 and a transition rod 2;

one end of the transition rod 2 is fixedly connected with the operating handle 1, the other end of the transition rod is fixedly connected with the fixing plate 3, and the guide pin sleeve 4 is fixedly connected to one side of the fixing plate 3; the fixing plate 3 is attached to one side of the femur to form a concave shape, the contact area of the fixing plate is enlarged, and meanwhile, the concave surface design is made on one side of the contact surface of the fixing plate, so that the fixing plate can be attached to the surface of the femur more tightly, the stability of fixing the device is improved, and the whole device is not easy to shift when the femoral neck screw 5 is guided, and the implantation angle of the femoral neck screw 5 is changed; a femoral neck screw guide hole 301 is formed in the fixing plate 3, and the operating handle 1 is fixedly connected to the outer side of the fixing plate 3 through the transition rod 2; the central line of the femoral neck screw guide hole 301 is parallel to the central line of the guide pin sleeve 4; the angle between the tube of the guide pin sleeve 4 and the horizontal plane is 130 degrees, a guide pin is inserted into the guide pin sleeve 4 in the actual use process, a reference is provided for the insertion of the femoral neck screw 5, so that the femoral neck screw 5 can be implanted into the femoral neck 7 while considering the neck shaft angle and the anteversion angle, the accuracy and the success rate of the implantation of the femoral neck screw 5 are improved, the femoral neck screw cannot penetrate out of the surface of the femoral head 7 to cause the failure of the operation, and the improvement of the operation quality is facilitated;

example 2

Yet another embodiment of the present invention is an embodiment of an improved femoral neck screw guide, comprising: an operating handle 1, a fixing plate 3, a guide pin sleeve 4 and a transition rod 2; one end of the transition rod 2 is fixedly connected with the operating handle 1, the other end of the transition rod is fixedly connected with the fixing plate 3, and the guide pin sleeve 4 is fixedly connected to one side of the fixing plate 3; the fixing plate 3 is attached to one side of a femur and is concave inwards, a femoral neck screw guide hole 301 is formed in the fixing plate 3, and the operating handle 1 is fixedly connected to the outer side of the fixing plate 3 through the transition rod 2; the central line of the femoral neck screw guide hole 301 is parallel to the central line of the guide pin sleeve 4;

attach whole device in 7 surfaces in the thighbone upper segment outside through fixed plate 3, pass guide pin sleeve 4 with guide pin 6, the guide pin is hugged closely at thighbone neck anterior surface, implants thighbone neck 7 through thighbone neck screw guiding hole 301 with thighbone neck screw 5, and the angle direction of reference guide pin 6 is being implanted in the in-process, and the contrast is constantly ensured that thighbone neck screw 5 implants the angle and does not change.

In summary, 1, the device is optimized on the fixing plate attached to the surface of the femur, the contact area of the fixing plate is increased, and meanwhile, the concave surface design is made on one side of the contact surface of the fixing plate, so that the fixing device can be attached to the surface of the femur more closely, the stability of fixing the device is improved, and the whole device is ensured not to shift easily when guiding the femoral neck screw, so that the implantation angle of the femoral neck screw is changed;

2. this director is fixed at its outer fringe and is added and be equipped with the guide pin pipe, certain angle (130) have between this sleeve pipe and the fixed plate, the neck angle of being said, wear to put a guide pin at the in-tube in-service use, this guide pin is hugged closely in thighbone neck anterior surface, for implanting thighbone neck screw provide a neck angle and the direction angle of anteversion refer to, thighbone neck screw's guide pin only need refer to the angle puncture of outside guide pin get into thighbone neck can, so, reference contrast through outside guide pin, make thighbone neck screw wear to implant thighbone neck can compromise neck angle and anteversion simultaneously, the degree of accuracy and the success rate that thighbone neck screw was implanted have been improved, cause it can not wear out the femoral head surface and lead to the operation failure, help the improvement of operation quality.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An improved femoral neck screw guide, comprising: an operating handle, a fixed plate, a guide pin sleeve and a transition rod;

one end of the transition rod is fixedly connected with the operating handle, the other end of the transition rod is fixedly connected to the fixing plate, and the guide pin sleeve is fixedly connected to one side of the fixing plate.

2. The improved femoral neck screw guide of claim 1, wherein the fixing plate is concave on the side attached to the femur, the fixing plate is provided with a femoral neck screw guide hole, and the operating handle is fixedly connected to the outside of the fixing plate through a transition rod.

3. The improved femoral neck screw guide of claim 2, wherein the femoral neck screw guide hole centerline is parallel to the guide pin cannula centerline.