Single cutting-edge cutting knife exclusively used for tendon sheath

A tendon sheath and blade technology, applied in the field of hand surgical scalpels, can solve the problems of accidental injury to neurovascular bundles, increased adhesion, and recurrence of tendon adhesion entrapment, etc., and achieve the effect of eliminating potential risks and simple structure

Pending Publication Date: 2019-10-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when cutting the narrow tendon sheath of the hand, an ordinary scalpel is used to make a transverse incision on the finger skin on the middle surface of the tendon sheath, incise the skin and subcutaneous area to expose the tendon sheath, and then use the scalpel to make a distal and proximal incision respectively. Incision of the narrow tendon sheath in the longitudinal direction, often due to the limited exposure of the small incision, inexperience of the surgeon’s assistant, and the long blade of the ordinary scalpel, the sneak incision is made

Method used

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  • Single cutting-edge cutting knife exclusively used for tendon sheath
  • Single cutting-edge cutting knife exclusively used for tendon sheath
  • Single cutting-edge cutting knife exclusively used for tendon sheath

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] see Figure 1 to Figure 4 As shown, a knife dedicated to single-edged tendon sheath incision includes a blade 1, a blade 2 and a connecting end 3, the blade 1 is arranged on the upper end of the blade 2, the end of the blade 1 is connected to the connecting end 3, and the working end of the blade 2 faces toward the blade 1 head end;

[0027] The cross section of the blade 1 is an arc groove structure;

[0028] The connecting end 3 is provided with a mounting groove 4;

[0029] The angle E between the connecting end 3 and the horizontal plane is 50°~70°;

[0030] The width A of the blade 1 is between 4.5 mm and 5.5 mm;

[0031] The included angle B between both sides of the blade 1 and the horizontal plane is 8°~12°;

[0032] The height F of the blade 2 is 2.5 mm to 3.5 mm.

[0033] The angle G between the blade 2 and the horizontal plane is 75°-85°.

[0034] Preferably, the width A of the blade 1 is 5 mm.

[0035] Preferably, the angle E between the connecting en...

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Abstract

The invention discloses a single cutting-edge cutting knife exclusively used for a tendon sheath, and relates to the technical field of hand surgical scalpels. The single cutting-edge cutting knife exclusively used for the tendon sheath includes a blade, a cutting edge and a connecting end, the blade is arranged on the upper end of the cutting edge, the tail end of the blade is connected with theconnecting end, the working end of the cutting edge is oriented towards the head end of the blade, the cross section of the blade is of an arc groove structure, and the connecting end is provided witha mounting groove; when in using, the connecting end is firstly connected with a surgical knife handle, after the surgical knife handle is connected, a transverse incision is cut on skin on the tendon sheath of a finger, the skin at the incision is turned up by using surgical tweezers, the head end of the blade is inserted in the lower part of the tendon sheath, and pushed up in the direction ofthe finger, the blade cut the incision on the tendon sheath of a patient, and minimally invasive is made.

Description

technical field [0001] The invention relates to the technical field of hand surgical scalpels, in particular to a single-edged tendon sheath incision knife. Background technique [0002] In the prior art, when cutting the narrow tendon sheath of the hand, an ordinary scalpel is used to make a transverse incision on the finger skin on the middle surface of the tendon sheath, incise the skin and subcutaneous area to expose the tendon sheath, and then use the scalpel to make a distal and proximal incision respectively. Incision of the narrow tendon sheath in the longitudinal direction, often due to the limited exposure of the small incision, inexperience of the surgeon’s assistant, and the long blade of the ordinary scalpel, the sneak incision is made in a limited field of view, and the skin is also cut while the tendon sheath is incised longitudinally, which makes the original design The horizontal standard incision along the skin striae becomes a "wrong" incision similar to t...

Claims

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Application Information

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IPC IPC(8): A61B17/3213
CPCA61B17/3213
Inventor 田恒潘俊博瞿文瑞朱哲刘军
Owner JILIN UNIV
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