CN103815908A - Tibial prosthesis size measurer - Google Patents

Abstract

The invention relates to a tibial prosthesis size measuring device, comprising a depth measuring scale and a width measuring scale, the depth measuring scale and the width measuring scale are arranged perpendicularly to each other, the width measuring scale slides freely along the up and down direction of the depth measuring scale, and the width measuring scale is The telescopic scale, the width measurement scale includes a telescopic rod and a sliding rod, the right end of the sliding rod is connected with the depth measuring scale, and the right end of the telescopic rod is movably sleeved in the telescopic interface at the left end of the sliding rod. The tibial prosthesis size measuring device adopting this structure has a simple structure, and both the depth measurement scale and the width measurement scale have scale lines, and the operator can directly read the platform width and platform depth through the scale lines, which is convenient for reading and less error-prone. The data is accurate; the hook on the ruler is easy to hook the bone edge, which is convenient for operation and use; the width measurement ruler is a telescopic ruler, which is convenient for measurement and use; the overall structure of the measuring device is simple and suitable for the measurement of small incisions.

Description

tibial prosthesis sizer

technical field

The invention relates to the technical field of medical equipment, in particular to the technical field of orthopedic measurement equipment, in particular to a tibial prosthesis size measuring device. the

Background technique

At present, for unicondylar knee arthroplasty (UKA), the accurate selection of the prosthesis size will ultimately affect the surgical effect and the long-term survival rate of the prosthesis. Due to the minimally invasive surgery, it is difficult to perform it as in total knee arthroplasty. Accurate measurement of tibial prosthesis size. At present, the commonly used tibial prosthesis size measurement is mostly to put different sizes of tibial prosthetic templates into the operation and directly compare the size. Due to the limited intraoperative field of view, the prosthesis is often chosen incorrectly. the

Contents of the invention

The object of the present invention is to overcome the above-mentioned shortcomings in the prior art, and provide a tibial prosthesis size measuring device with simple structure, accurate measurement and suitable for small incision measurement. the

In order to achieve the above-mentioned purpose, the tibial prosthesis size measuring device of the present invention adopts the following technical solutions:

The tibial prosthesis size measurer is mainly characterized in that it includes a depth measurement scale and a width measurement scale, the depth measurement scale and the width measurement scale are arranged vertically to each other, and the width measurement scale is arranged along the depth The up and down direction of the measuring scale is free to slide, and the described width measuring scale is a telescopic scale. the

The width measuring scale in the tibial prosthesis size measuring device comprises a telescopic rod and a sliding rod, the right end of the sliding rod is connected with the depth measuring scale, and the sliding rod is freely moved up and down along the depth measuring scale. Sliding, the left end of the sliding rod has a telescopic interface, and the right end of the telescopic rod is movably sleeved in the telescopic interface at the left end of the sliding rod. the

The telescoping portion of the tibial prosthesis size measuring device is provided with a scale line printing layer along the length direction of the width measuring scale. the

The depth measurement scale in the tibial prosthesis size measurer is provided with a scale line printing layer. the

The upper end of the depth measurement scale in the tibial prosthesis size measuring device has a hook, and the lower end of the depth measurement scale is fixedly provided with a handle portion. the

A hook is arranged at the left end of the telescopic rod in the tibial prosthesis size measurer. the

The tibial prosthesis size measuring device adopting this structure has a simple structure, and both the depth measurement scale and the width measurement scale have scale lines, and the operator can directly read the platform width and platform depth through the scale lines, which is convenient for reading and less error-prone. The data is accurate; the hook on the ruler is easy to hook the bone edge, which is convenient for operation and use; the width measurement ruler is a telescopic ruler, which is convenient for measurement and use; the overall structure of the measuring device is simple and suitable for the measurement of small incisions. the

Description of drawings

Fig. 1 is a schematic diagram of the measuring device of the present invention. the

Fig. 2 is a schematic diagram of the measuring device of the present invention when performing measurement. the

The labels in the figure are explained as follows:

1 Depth measurement scale

2 width measuring ruler

21 telescopic rod

22 sliding rod

3 telescopic interface

4 Scale line printing layer

5 Scale line printing layer

6 handle part

7 tibia

Detailed ways

In order to understand the technical content of the present invention more clearly, the following examples are given in detail. the

Please refer to Fig. 1 to Fig. 2, this tibial prosthesis size measurer, comprises depth measurement scale 1 and width measurement scale 2, and depth measurement scale 1 and width measurement scale 2 are vertically arranged mutually, and width measurement scale 2 is along depth measurement scale 1 Freely slide up and down, and the width measuring scale 2 is a telescopic scale. the

The width measuring scale 2 includes a telescopic rod 21 and a sliding rod 22, the right end of the sliding rod 22 is connected with the depth measuring scale 1, and the sliding rod 22 freely slides up and down along the depth measuring scale 1, and the left end of the sliding rod 22 has a telescopic interface 3 , the right end of the telescopic rod 21 is movably sleeved in the telescopic interface 3 at the left end of the sliding rod 22 . the

The telescopic part 21 is provided with a scale mark printing layer 4 along the length direction of the width measuring scale 2, for observing the width of the measuring platform,

The depth measurement scale 1 is provided with a scale line printing layer 5, so as to facilitate observation of the depth of the measurement platform. the

The upper end of the depth measurement scale 1 has a hook (not shown in the figure), which can catch the edge of the bone, and the lower end of the depth measurement scale 1 is fixedly provided with a handle portion 6, which is convenient for the operator to grasp. the

The left end of the telescopic rod 21 is provided with a hook (not shown in the figure), and the hook structure can facilitate hooking the edge of the bone. the

The tibial prosthesis size measuring device adopting this structure has a simple structure, and both the depth measurement scale and the width measurement scale have scale lines, and the operator can directly read the platform width and platform depth through the scale lines, which is convenient for reading and less error-prone. The data is accurate; the hook on the ruler is easy to hook the bone edge, which is convenient for operation and use; the width measurement ruler is a telescopic ruler, which is convenient for measurement and use; the overall structure of the measuring device is simple and suitable for the measurement of small incisions. the

In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive. the

Claims (6)

1. A tibial prosthesis size measurer, characterized in that it comprises a depth measuring scale and a width measuring scale, the depth measuring scale and the described width measuring scale are vertically arranged, and the width measuring scale is arranged along the The vertical direction of the depth measurement scale can slide freely, and the width measurement scale is a telescopic scale. 2. tibial prosthesis size measurer according to claim 1, is characterized in that, described width measuring scale comprises telescoping bar and sliding bar, and the right end of described sliding bar is connected with described depth measuring scale, this The sliding rod freely slides up and down along the depth measurement scale, the left end of the sliding rod has a telescopic interface, and the right end of the telescopic rod is movably sleeved in the telescopic interface at the left end of the sliding rod. 3 . The tibial prosthesis size measuring device according to claim 2 , characterized in that, the telescopic portion is provided with a scale mark printing layer along the length direction of the width measuring scale. 4 . 4. The measuring device for tibial prosthesis according to claim 1, characterized in that, said depth measuring scale is provided with a scale line printing layer. 5 . The tibial prosthesis size measuring device according to claim 1 , wherein the upper end of the depth measurement scale has a hook, and the lower end of the depth measurement scale is fixedly provided with a handle portion. 6. The measuring device for tibial prosthesis according to claim 1, characterized in that a hook is provided at the left end of the telescopic rod.

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