CN201642303U

CN201642303U - Thighbone near-end dissection type sighting device

Info

Publication number: CN201642303U
Application number: CN2010201496590U
Authority: CN
Inventors: 卫正洪; 吴军; 韩恒宽; 颜丽华; 杜伟中
Original assignee: Changshu No5 Peoples Hospital
Current assignee: Changshu No5 Peoples Hospital
Priority date: 2010-03-31
Filing date: 2010-03-31
Publication date: 2010-11-24
Anticipated expiration: 2020-03-31

Abstract

The utility model discloses a thighbone near-end dissection type sighting device, which comprises a base plate, a guide block and a handle, wherein the base plate, the guide block and the handle are cast or welded into a whole body, the handle is fixed at the end part of the base plate, and the guide block is fixed between the handle and the base plate, wherein an included angle alpha between the guide block and the plane of the base plate is 130 degrees, and the guide block is provided with at least one needle passage arranged in the axial direction of the guide block. The thighbone near-end dissection type sighting device disclosed by the utility model can precisely position a needle input joint of a guide needle in a position parallel to the lesser trochanter of the thighbone and can maintain the 130 degrees of the needle inlet angle of the guide needle, so damaged sclerotin blood supply of the collum femoris and the caput femoris, caused by unnecessary needle inlet, can be avoided, the operation wound is small, the bone fracture healing rate can be improved. In addition, the utility model has no special equipment requirement in the operation, has low cost, simple structure and convenient mastering, can be easily popularized to basic hospitals, and has no radiation injury.

Description

A kind of proximal femur dissection aiming device

Technical field

This utility model relates to a kind of proximal femur dissection aiming device, belongs to the medical apparatus technical field.

Background technology

At present, human society enters aging, and neck of femur and intertrochanteric fracture of the femur are old people's common frdquently encountered diseases.When clinical internal fixation treatment neck of femur or femur intertrochanteric fracture, all need insert the guide pin location earlier.Normally carry out guide pin and enter, all need adopt C arm machine to have an X-rayed behind each inserting needle and put in place, but Chang Yinqi entry point and top rake and collodiaphyseal angle grasp are bad, cause repeatedly inserting needle repeatedly to check whether guide pin enters with doctor's clinical experience.Therefore, on the one hand, because the repeated multiple times inserting needle brings unnecessary iatrogenic infringement to patient; On the other hand, because C arm machine itself costs an arm and a leg, be unfavorable for the popularization of basic hospital; On the one hand, when C arm machine was had an X-rayed, itself had radiation injury to human body again.

The utility model content

The purpose of this utility model is to provide a kind of proximal femur dissection aiming device, has accurate location entry point and keeps needle angle, wound is little, cost is low, radiationless advantage.

The technical solution of the utility model is, a kind of proximal femur dissection aiming device, comprise substrate, guide pad, handle, substrate, guide pad and handle adopt casting to connect or are welded as a whole, and described handle is fixed in the substrate end, and described guide pad is fixed between handle and the substrate, wherein, the angle α of guide pad and base plan is 130 degree, and wherein, guide pad has at least 1 along the axial needle track of guide pad.

In this utility model one preferred embodiment, the other end with respect to the handle stiff end of described substrate is provided with the camber positioning chamber.

In this utility model one preferred embodiment, described guide pad has 3 needle tracks.

The proximal femur dissection aiming device that this utility model discloses can accurately be positioned entry point the position that parallels with the little tuberosity of femur, has avoided bone blood that unnecessary repetition inserting needle caused for destroying, and operation wound is little, improves the union of fracture rate; And, with low cost, simple in structure, easily promote to basic hospital; And, radiationless injury.The defective of inserting needle difficulty when adopting this kind sight can solve for a long time to neck of femur and femoral bone tuberosity internal fixation operation.

Description of drawings

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail:

Fig. 1 is the example structure sketch map of this utility model proximal femur dissection aiming device;

Fig. 2 is the embodiment front view of this utility model proximal femur dissection aiming device;

Fig. 3 is the embodiment upward view of this utility model proximal femur dissection aiming device;

Fig. 4 is the embodiment side view of this utility model proximal femur dissection aiming device.

The labelling of each parts is as follows in the accompanying drawing: 1, substrate, 2, guide pad, 3, handle, 4, needle track, 5, positioning chamber.

The specific embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby protection domain of the present utility model is made more explicit defining so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that.

Referring to accompanying drawing 1 and Fig. 2, Fig. 1 and Fig. 2 are respectively the embodiment schematic perspective view and the front views of proximal femur dissection aiming device, among this utility model embodiment, sight comprises substrate 1, guide pad 2, handle 3, wherein, substrate 1, guide pad 2 and handle 3 adopt the method for welding to be connected as a single entity, and are apparently, and this place is stated sight and also can be adopted casting mode even to be connected as a single entity; Handle 3 is fixed in an end of substrate 1, guide pad 2 is fixed between handle 3 and the substrate 1, more particularly, on handle 3 and substrate 1, offer an installing hole (not shown) that is complementary with guide pad 2 shapes respectively, make guide pad be contained in this in the installing hole, adopt the method for welding that it is fixed between handle 3 and the substrate 1 obliquely simultaneously, need to prove, guide pad 2 can be 125～135 degree with substrate 1 plane included angle α, is that 130 degree are determined according to the essential structure of for many years clinical experience and state's human femur itself with the angle initialization of this angle α.As a preferential embodiment of present embodiment, the applicant preferentially is provided with this angle α 130 degree.

In addition, guide pad 2 has 3 along the axial needle track 4 of guide pad, why guide pad is offered 3 needle tracks, and its purpose is that the clinician can finely tune the inserting needle position according to actual needs, generally speaking, preferentially selects intermediary needle track as entry point.

Please continue to consult Fig. 2, Fig. 3 and Fig. 4, the other end with respect to handle 3 stiff ends of described substrate 1 is provided with camber positioning chamber 5, the shape of this positioning chamber and femoral greater trochanter shape are mated mutually, after in case positioning chamber is close to greater trochanter, the going out the pin position and will parallel of needle track with little tuberosity, in other words, the position that guide pin enters femur also is parallel to each other with little tuberosity, meet the requirement of clinical guide pin inserting needle position fully, thereby reach the purpose of an inserting needle.

Proximal femur dissection aiming device operating procedure of the present utility model is as follows:

1, makes about 5 centimetres of a stringer operative incision in the greater trochanter below;

2, advance to reach near end of thighbone by level;

3, insert dissection aiming device along the near end of thighbone surface of bone, positioning chamber 5 is close to greater trochanter;

4, select needle track according to different situations, and in the needle track of choosing 4, carry out inserting needle, make guide pin become 130 degree angles to enter neck of femur along needle track and with femoral axis.

The proximal femur dissection aiming device that this utility model discloses, entry point accurately can be positioned the position that parallels with the little tuberosity of femur, avoided unnecessary femur neck that inserting needle caused repeatedly and femoral head sclerotin blood to supply to destroy, operation wound is little, improves the union of fracture rate; And with low cost, simple in structure, no especial equipment requirements is convenient to grasp in the operation, easily promotes to basic hospital; And radiationless injury.The inaccurate defective of inserting needle when adopting this kind sight can solve for a long time to neck of femur and femur intertrochanteric fracture internal fixation operation.

The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of this utility model; variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.

Claims

1. proximal femur dissection aiming device, it is characterized in that, comprise substrate, guide pad, handle, substrate, guide pad and handle adopt casting to connect or are welded as a whole, and described handle is fixed in the substrate end, and described guide pad is fixed between handle and the substrate, wherein, the angle α of guide pad and base plan is 130 degree, and wherein, guide pad has at least 1 along the axial needle track of guide pad.

2. proximal femur dissection aiming device according to claim 1 is characterized in that: the other end with respect to the handle stiff end of described substrate is provided with the camber positioning chamber.

3. proximal femur dissection aiming device according to claim 1 and 2 is characterized in that: described guide pad has 3 needle tracks.