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Tendon cutting device

A cutter and tendon technology, applied in the field of medical devices, can solve the problems of amputated tendons, difficult to cut tendons, damaged blood vessels and nerves, etc., and achieves the effect of convenient use.

Active Publication Date: 2013-12-04
沈小芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional tendon harvester in the medical market uses a sharp blade to cut. This method is difficult to cut off the tendon. If the blade is too sharp, there is a risk of accidental amputation of the tendon and damage to blood vessels and nerves.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Such as Figure 1-4 As shown, the tendon cutter includes a tendon separation support tube 1, a tendon separation guide tube 3 and a tendon cutting end 17. The tendon separation support tube 1 is provided with several support tube cutting grooves 16, each support tube cutting groove 16 There is a support tube fixing needle 15 inside; the tendon cutting line 4 surrounds each support tube fixing needle 15, and is limited by the support tube fixing needle 15;

[0026] The two ends of the tendon cutting line 4 are wrapped around the tendon separation guide 2, and connected to the tendon separation guide tube 3 through the tendon separation guide 2, and finally into the tendon cutting end 17;

[0027] One end of the tendon separation guide tube 3 is connected to the tendon separation support tube 1, and the other end is connected to the tendon cutting end 17; an internal fixation block 8 is arranged in the tendon cutting end 17;

[0028] A ratchet 5 is arranged in the tendon...

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Abstract

The invention relates to a tendon cutting device and particularly relates to a tendon extraction device which is mainly applied to the technical field of medical apparatuses. The tendon cutting device comprises a tendon separation support tube, a tendon separation guiding tube and a tendon cutting end, wherein the tendon separation support tube is provided with a plurality of support tube cutting grooves, and a support tube fixing needle is arranged in each support tube cutting groove; a tendon cutting line surrounds each support tube fixing needle and is limited by the support tube fixing needle. According to the tendon cutting device, a metal wire cutting principle is adopted, the tendon cutting lines are tightened by a unique reeling manner and a ratchet wheel and pawl principle, so that the tendon cutting device is more convenient and safe to use.

Description

technical field [0001] The invention relates to a tendon cutter, in particular to a tendon sleeve extraction device, which is mainly used in the technical field of medical devices. Background technique [0002] In patients with clinical orthopedic sports trauma or violent trauma in car accidents, single or multiple ligaments of the knee joint may be ruptured, and the incidence of tendon defects in patients with hand trauma is very high. In this case, autologous or allogeneic tendon transplantation is required Surgery is performed to reconstruct the continuity of the ligament or tendon. The first step in ligament reconstruction with autologous tendon is to harvest the tendon with a tendon harvester. [0003] Traditional tendon harvesters in the medical market use sharp blades for cutting. This method is more difficult to cut tendons. If the blade is too sharp, there is a risk of accidental amputation of tendons and damage to blood vessels and nerves. [0004] Chinese patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/3209
Inventor 沈小芳芮永军冷焱麟薛明宇张雁
Owner 沈小芳
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