CN202568536U

CN202568536U - Combined patella replacement former

Info

Publication number: CN202568536U
Application number: CN 201220184983
Authority: CN
Inventors: 黄国富
Original assignee: TIANJIN HENGKANG MEDICAL EQUIPMENT CO Ltd
Current assignee: TIANJIN HENGKANG MEDICAL EQUIPMENT CO Ltd
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-12-05
Anticipated expiration: 2022-04-27

Abstract

The utility model relates to a combined patella replacement former. The former is mainly technically characterized by comprising an upper handle, a lower handle, a patella clamping ring, a central positioning template and a scale, wherein one end of the upper handle is hinged together with one end of the lower handle; a spring plate for adjusting tension of the upper handle and the lower handle is arranged between the upper handle and the lower handle; a pressure screw and a pressure adjusting screw cup which are used for adjusting the pressure of the upper handle and the lower handle are arranged between the upper handle and the lower handle; the patella clamping ring is inserted into the other end of the upper handle; the central positioning template is rotationally arranged on the surface of the other end of the upper handle and fastened together with the upper handle through a lateral fastening bolt; and the scale is rotationally arranged in a scale groove made on the surface of the lower handle. The upper and lower handles, the patella clamping ring, the central positioning template and the scale are organically combined together to complete the whole treatment process of patella replacement; the former is simple in structure, convenient to use, high in accuracy, quick and effective; and the former serving as auxiliary equipment for knee joint surgical treatment can be widely applied to knee joint surgery.

Description

Combination type patella displacement former

Technical field

This utility model belongs to medical instruments field, particularly a kind of combination type patella displacement former.

Background technology

Whole knee artificial joint replacement is treatment and repairs effective modus operandi of the destructive disease of knee joint.The liquidating property stress that the buffer-type knee joint is produced in the time of can reducing between the prosthese motion effectively, thus played the effect of joint motions bufferings, its coefficient of friction, have prosthese simultaneously and implant the back and be difficult for characteristics such as loosening, good stability.When carrying out the displacement of the kneed patella of buffer-type; Need to patella turn up bone regeneration thing around the position clear up, to the size of required patella measure, locate, treatment step such as installation; Existing processing method all adopts separately separate equipment to handle, and the problem of its existence is: complicated operation, processing speed wait problem slowly.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of prior art, and a kind of reasonable in design, easy to use and former of combination type patella displacement fast and effectively is provided.

This utility model solves its technical problem and takes following technical scheme to realize:

A kind of combination type patella displacement former; Comprise upper handle, lower handle, patella holding ring, centralized positioning template and scale; The one end hinge of described upper handle and lower handle is fitted together; Between upper handle and lower handle, be equipped with and regulate its tensile latch plate, pressure screw bolt and the pressure of regulating its pressure are installed between upper handle and lower handle regulate nut, described patella holding ring is inserted into the upper handle other end; The rotation of said centralized positioning template is installed on the upper handle other end surface and through lateral fastening bolt and tightens together, and described scale is rotatable to be installed in the scale slot that the lower handle surface is shaped on.

And described upper handle and lower handle are fitted together through handle bolt and handle nut hinge.

And; The mounting means that described pressure screw bolt and pressure are regulated nut is: pressure screw bolt is packed on the lower handle upper surface, and the upper end of this pressure screw bolt is passed and regulated nut through a pressure and regulate the pressure between upper handle and the lower handle from upper handle.

And the described scale anglec of rotation is 90 degree, is used for the patella measurement when becoming 90 to spend with lower handle surface when scale rotates to.

The advantage and the good effect of this utility model are:

This utility model will be gone up lower handle, patella holding ring, centralized positioning template and scale and organically combine; Through the patella holding ring patella is fixed, carried out patella through scale and measure, position boring and brill mills the prosthese groove through the centralized positioning template; Clamping action through handle is accomplished the metathetical entire process process of patella; It is simple in structure, easy to use, accuracy is high, fast effectively, it can be widely used in the knee surgery as the auxiliary facilities of knee surgery treatment.

Description of drawings

Fig. 1 is the decomposition texture sketch map of this utility model;

Fig. 2 is the overall structure sketch map of this utility model.

The specific embodiment

Below in conjunction with accompanying drawing this utility model embodiment is done further detailed description:

A kind of combination type patella displacement former; Like Fig. 1 and shown in Figure 2; Comprise lower handle 3, patella holding ring 9, centralized positioning template 10 and scale 7; One end of upper handle and lower handle is fitted together through handle bolt 2 and handle nut 5 hinges, and latch plate 4 is installed between this is to the handle upper and lower surfaces, and this latch plate is regulated the tension force between upper handle and the lower handle.Upper surface at lower handle vertically is fixed with a pressure screw bolt 6; This pressure screw bolt upper end is passed the through hole that upper handle is shaped on and through engage thread pressure is installed and regulates nut 1; Make upper handle and handle link together, this pressure screw bolt and pressure are regulated the pressure that nut is used to regulate upper handle and lower handle.The patella holding ring is inserted on the upper handle other end outside relative with the handle bolt, and this patella holding ring has different sizes, and the patella holding ring of plug-in mounting different size is to satisfy different patients' needs according to actual needs.The rotation of centralized positioning template is installed on the upper handle other end surface relative with the handle bolt and through lateral fastening bolt 8 and tightens together, and is shaped on locating hole in this centralized positioning template, is used for location drilling and brill and mills the prosthese groove.Scale is rotatable to be installed in the scale slot 11 that the lower handle surface is shaped on; When carrying out tape measure; Can it be pulled out from the scale slot internal rotation and make its upper surface carry out the patella dimensional measurement perpendicular to lower handle, measure finish after, can the scale rotation be pushed back in the scale slot.

The operation principle of this utility model is: in carrying out the patella replacement process; The patella holding ring of at first selecting to be fit to size is inserted on the upper handle; Regulating nut through pressure is fixed on patella between lower handle and the patella holding ring; With the centralized positioning template move to the patella holding ring directly over and be fixed through fastening bolt, measure the size of required patella when the pull-up scale makes it become 90 to spend with lower handle, the centre bore installing and locating sleeve pipe through the centralized positioning template positions boring; Behind the location drilling; The centralized positioning template is removed from patella holding ring top, utilized the patella Drilling and milling head of corresponding size to mill out patella prosthese groove again, carry out corresponding patella at last and replace.

It is emphasized that; The described embodiment of this utility model is illustrative; Rather than it is determinate; Therefore this utility model is not limited to the embodiment described in the specific embodiment, every by those skilled in the art according to other embodiments that the technical scheme of this utility model draws, belong to the scope of this utility model protection equally.

Claims

1. a combination type patella is replaced former; It is characterized in that: comprise upper handle, lower handle, patella holding ring, centralized positioning template and scale; The one end hinge of described upper handle and lower handle is fitted together; Between upper handle and lower handle, be equipped with and regulate its tensile latch plate, pressure screw bolt and the pressure of regulating its pressure are installed between upper handle and lower handle regulate nut, described patella holding ring is inserted into the upper handle other end; The rotation of said centralized positioning template is installed on the upper handle other end surface and through lateral fastening bolt and tightens together, and described scale rotation is installed in the scale slot that the lower handle surface is shaped on.

2. combination type patella displacement former according to claim 1 is characterized in that: described upper handle and lower handle are fitted together through handle bolt and handle nut hinge.

3. combination type patella displacement former according to claim 1; It is characterized in that: the mounting means that described pressure screw bolt and pressure are regulated nut is: pressure screw bolt is packed on the lower handle upper surface, and the upper end of this pressure screw bolt is passed and regulated nut through a pressure and regulate the pressure between upper handle and the lower handle from upper handle.

4. combination type patella according to claim 1 displacement former is characterized in that: the described scale anglec of rotation is 90 degree, is used for the patella measurement when becoming 90 to spend with the lower handle surface when scale rotates to.