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Knee joint prosthesis clamping device

A technology of knee joint prosthesis and snap-fit ​​device, which is applied in the field of knee joint prosthesis snap-fit ​​devices, can solve problems such as large flowers, and achieve the effect of convenient operation

Pending Publication Date: 2022-03-15
优适医疗科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to securely connect the tibial tray and the tibial pad, the locking parts of the two are designed to be very tight. The problem is that the surgeon needs to spend a lot of effort to push the tibial pad into the tibial tray.

Method used

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  • Knee joint prosthesis clamping device
  • Knee joint prosthesis clamping device
  • Knee joint prosthesis clamping device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] The present invention provides a knee joint prosthesis engaging device, which is in a pistol-like shape for easy operation, and pushes the tibial pad into the tibial tray by pulling the trigger 5, which is easy to operate and labor-saving.

[0025] figure 1 is a perspective view of a knee prosthesis engagement device in some embodiments. from figure 1 It can be seen that the knee joint prosthesis engaging device includes a shell 1, an extension 2 extending from the shell 1 to the far side, a push rod 3 penetrating through the shell 1 and extending in the front-back direction, and a handle 4 arranged under the shell 1 And trigger 5, and locking part 6. The distal end of the extension part 2 forms a stop component 7 downward, the push rod 3 is arranged behind the stop component 7 and the distal end of the push rod 3 has a pad 8 opposite to the stop co...

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PUM

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Abstract

The invention discloses a knee joint prosthesis clamping device, comprising: a housing having a first accommodating cavity inside and having first holes at the front and rear ends; the extension part extends from the shell to the far side, and the far end of the extension part downwards forms a stop part; the push rod is arranged behind the stop component and penetrates through the first hole, a cushion block is arranged at the far end of the push rod, and ratchets are arranged on the push rod in the axial direction of the push rod; the non-return pawl is arranged in the first containing cavity and is fixed in position, the push block is arranged on the push rod in a sleeving mode and can move front and back, a driving pawl is arranged in the push block, and the ratchets are meshed with the driving pawl and the non-return pawl respectively; the grip and the trigger are arranged below the shell, and the upper end of the trigger is jointed with the push block; and a lock member configured to restrict rotation of the push rod and release restriction on rotation of the push rod. The pistol-type design is convenient for doctors to operate; a trigger lever type structure is adopted, so that a surgeon can push the tibia pad into the tibia support in a labor-saving manner; and an intermittent pushing mechanism is adopted, so that a doctor can stop at any time to observe the clamping state.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a knee joint prosthesis engaging device. Background technique [0002] Arthroplasty is a well-known surgical procedure used to replace a damaged natural joint in a patient with a prosthetic joint. A typical knee prosthesis includes a patella prosthetic component, a tibial tray, a femoral component, and a polymer insert or buttress positioned between the tibial tray and the femoral component. The tibial part of the knee joint prosthesis includes a metal tibial tray and a plastic tibial pad, and the tibial tray and the tibial pad are engaged and connected to each other. In order to securely connect the tibial tray and the tibial pad, the locking parts of the two are designed to be very tight. The problem is that the surgeon needs to spend a lot of effort to push the tibial pad into the tibial tray. Contents of the invention [0003] In order to solve at least one technical problem of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46A61F2/38
CPCA61F2/461A61F2/389A61F2002/4625A61F2002/4631
Inventor 杨一帆黄飞鹏黄建峰吴震宇
Owner 优适医疗科技(苏州)有限公司