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Meniscus stitching instrument

A suturer and meniscus technology, applied in the field of medical devices, can solve problems such as difficult to control the outlet position and affect the operation accuracy

Pending Publication Date: 2019-02-19
STAR SPORTS MEDICINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional meniscus suturing device uses a manual linear push-pull method to draw out the thread (note: the thread is connected to the implant fixture). This way of threading is not easy to control the position of the thread, which affects the accuracy of the operation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] see image 3 , Figure 4 , Figure 5 as well as Image 6 , Embodiment 1 of the present invention provides a meniscal stapler, including a handle 1, a propulsion device arranged at the handle, a needle bar 2, and an implant fixture 3 arranged at the head end of the needle bar;

[0045] Wherein, the propulsion device includes a screw driving device 4 and an output shaft sleeve 5; the screw driving device 4 is connected to one end of the output shaft sleeve 5, and the other end of the output shaft sleeve 5 is connected to the implant The fixing part 3 is in contact with each other; the screw driving device 4 is used to drive the output bushing 5 to generate rotation and push the output bushing 5 to reciprocate in the needle bar 2 .

[0046] Analyzing the main structure of the meniscal suturing device above, it can be seen that the above meniscal suturing device includes a handle, a propulsion device arranged at the handle, a needle bar, and an implant fixture arranged a...

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PUM

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Abstract

The invention discloses a meniscus stitching instrument. The meniscus stitching instrument comprises a handle, a propelling device on the handle, a needle rod, and an implant fixing piece at the headend of the needle rod, wherein the propelling device comprises a spiral driving device and an output shaft sleeve, the spiral driving device is connected with one end of the output shaft sleeve, and the other end of the output shaft sleeve makes contact with the implant fixing piece and is attached to the implant fixing piece; the spiral driving device is used for driving the output shaft sleeve to rotate and pushing the output shaft sleeve to do reciprocating motion in the needle rod. According to the meniscus stitching instrument, the thread outgoing mode and the thread outgoing position arebetter controlled, power is more stably transmitted, and the operation precision is higher.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a meniscus stapler. Background technique [0002] As we all know, the meniscus is a semilunar cartilage-like tissue located between the femur and tibia of the knee joint, and is located on the medial and lateral articular surfaces of the tibial plateau. Its cross-section is triangular, thick on the outside and thin on the inside, slightly concave on the top to match the femoral condyle, and flat on the bottom to meet the tibial plateau. The meniscus has the functions of increasing stability, transmitting load, absorbing shock, and lubricating joints. With the improvement of people's living standards, national fitness is becoming more and more popular, sports injuries are also increasing, and meniscus injuries are becoming more and more common. [0003] There are three types of meniscus suture methods: Outside-in, Inside-out and All-inside. Depending on the suture me...

Claims

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Application Information

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IPC IPC(8): A61B17/04
CPCA61B17/0401A61B17/0469A61B17/0491A61B2017/0464A61B2017/0479
Inventor 董文兴
Owner STAR SPORTS MEDICINE CO LTD
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