CN215318826U

CN215318826U - Skin preparation knife

Info

Publication number: CN215318826U
Application number: CN202120739242.8U
Authority: CN
Inventors: 王亚; 王紫丽
Original assignee: First Affiliated Hospital of ZCMU
Current assignee: First Affiliated Hospital of ZCMU
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-28
Anticipated expiration: 2031-04-12

Abstract

The utility model relates to a medical auxiliary instrument, in particular to a skin preparation knife. The utility model provides a skin preparation sword, includes skin preparation sword body and fixed block, the fixed block is equipped with three at least stationary blades to extending with one side, the stationary blade interval sets up, and is adjacent be formed with the fixed slot between the stationary blade, be equipped with between fixed slot cell wall and blade terminal surface and be used for fixing the spacing groove of blade and can stretch into the arch of spacing groove, the stationary blade that lies in the outside in three at least stationary blades is fixed with the comb piece, and the comb piece has a plurality of spaced broach. The utility model has the following advantages: can adjust blade and skin interval, security height, conveniently change the blade, avoid skin tiny wound to appear, cause skin infection.

Description

Skin preparation knife

Technical Field

The utility model relates to a medical auxiliary instrument, in particular to a skin preparation knife.

Background

The operation skin preparation is mainly used for removing hairs on the surface of the skin of an operation position of a patient. The shaving and skin preparation knife used clinically at present may cause tiny injury to epidermal tissues, damage the integrity of the skin and increase the risk of postoperative incision infection. The method for preparing skin by shearing and preparing skin can retain hair with proper length, reduce skin injury, ensure skin integrity, and prevent postoperative incision infection.

The state intellectual property office in 2020, 7, 24, discloses a utility model patent with publication number CN211067098U, a novel skin preparation scissors, including scissors body and blade, its characterized in that: the scissors body divide into left handle of a knife and right handle of a knife and articulates through the fixed pin at middle part, the blade is installed on right handle of a knife top, the top of left handle of a knife is provided with sweat hair comb, the sharp sword of blade corresponds sweat hair comb's broach root.

The prior art has the defects that the distance between the blade and the skin cannot be adjusted, fine wounds can be caused to the skin due to the fact that fine hairs are easily removed, and skin infection is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a skin preparation knife capable of adjusting the distance between a blade and the skin.

In order to realize the purpose, the following scheme is adopted: the utility model provides a skin preparation sword, includes skin preparation sword body and fixed block, the fixed block is equipped with three at least stationary blades to extending with one side, the stationary blade interval sets up, and is adjacent be formed with the fixed slot between the stationary blade, be equipped with between fixed slot cell wall and blade terminal surface and be used for fixing the spacing groove of blade and can stretch into the arch of spacing groove, the stationary blade that lies in the outside in three at least stationary blades is fixed with the comb piece, and the comb piece has a plurality of spaced broach.

When the medical hair cutting device is used, medical staff fix the blade in a proper limit groove according to the length of the reserved hair, and the blade is prevented from being separated from the fixed groove through the matching of the limit groove and the protrusion; then the skin preparation knife is held by the hand of the medical care personnel, and the comb sheet is close to the skin of the patient; then the medical staff moves the skin preparation knife to comb the hair by the comb teeth of the comb sheet; the medical staff then controls the dermatome so that the combed hair comes into contact with the blade and is cut by the blade, while the hair between the comb plate and the blade, i.e., the hair to be cut in consideration of the reserve, is not cut, thereby cutting the hair to be cut off according to the preset setting and preserving the length of the hair to be cut off.

The prior art has the defects that the distance between the blade and the skin cannot be adjusted, fine wounds can be caused to the skin due to the fact that fine hairs are easily removed, and skin infection is caused. The skin preparation device can adjust the distance between the blade and the skin through the blade, and the blade and the skin which are made by the comb sheet have a gap so as to avoid the skin from having tiny wounds and causing skin infection.

Preferably, a gap exists between two adjacent comb teeth of the comb plate, and the fixing block fixed to the comb plate are provided with through grooves corresponding to the gap. When medical personnel continued to remove the comb piece, hair passed through in can following the through hole, and hair can not pressed down by the comb piece and also can not hinder the comb piece and remove, makes things convenient for medical personnel and patient's directly perceived impression to consider the length of reserving hair, also makes things convenient for medical personnel to control skin preparation sword.

Preferably, the handle of the dermatome body is provided with a blind hole which extends along the length direction of the handle and is opened outwards, a fixing rod which extends along the length direction of the blade is fixed at one end of the blade, and the fixing rod extends into the blind hole to realize the fixation of the blade and the handle. The dead lever stretches into the blind hole in order to realize the fixed of blade and handle, makes things convenient for medical personnel to change the blade. When the blade is replaced, the medical staff pulls out the fixed rod of the old blade from the blind hole; and then the fixing rod of the new blade is tightly matched with the blind hole.

Preferably, the cross section of the fixing rod is flat, and the shape of the blind hole is matched with that of the fixing rod. The cross section of the fixing rod is flat, so that the blade and the handle are prevented from rotating relatively.

Preferably, the end face of one end of the comb teeth, which is far away from the fixing piece, is of a spherical structure, and the other end of the blade, which is far away from the fixing rod, is of a round angle. The setting of spherical surface structure and fillet can avoid the tip of blade and the terminal surface of broach to stab the patient, improves the security of skin preparation ware.

The utility model has the following advantages: can adjust blade and skin interval, security height, conveniently change the blade, avoid skin tiny wound to appear, cause skin infection.

Drawings

FIG. 1 is a schematic structural view of a skin preparation knife body;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a state diagram of the present invention in use.

Detailed Description

To further illustrate the technical solutions adopted by the present invention to achieve the predetermined objects, the following detailed descriptions are provided in conjunction with the accompanying drawings:

as shown in fig. 1, a skin preparation knife, including skin preparation knife body 1 and fixed block 2, fixed block 2 is equipped with three at least stationary blades 21 to extending with one side, and fixed blade 21 interval sets up, is formed with fixed slot 22 between adjacent stationary blade 21, is equipped with spacing groove 12 that is used for fixed blade 11 and can stretches into the arch 23 of spacing groove between fixed slot 22 cell wall and blade 11 terminal surface, and the one end that fixed block 2 was kept away from to fixed blade 21 is fixed with comb piece 24, and during the use, comb piece 24 is close to patient's skin.

A gap is formed between two adjacent comb teeth 241 of the comb piece 24, and the fixing block 2 and the fixing piece 21 fixed to the comb piece 24 are provided with through grooves 242 corresponding to the gap.

The handle 13 of the skin preparation knife body 1 is provided with a blind hole 14 which extends along the length direction of the handle 13 and is opened outwards, one end of the blade 11 is fixed with a fixing rod 15 which extends along the length direction of the blade 11, and the fixing rod 15 extends into the blind hole 14 to realize the fixation of the blade 11 and the handle 13.

The cross section of the fixing rod 15 is flat, and the shape of the blind hole 14 is matched with that of the fixing rod 15.

The end face of one end of the comb tooth 241 far away from the fixing plate 21 is of a spherical structure, and the other end of the blade 11 far away from the fixing rod 15 is of a round angle. When the medical hair cutting device is used, medical staff fix the blade in a proper limit groove according to the length of the reserved hair, and the blade is prevented from being separated from the fixed groove through the matching of the limit groove and the protrusion; then the skin preparation knife is held by the hand of the medical care personnel, and the comb sheet is close to the skin of the patient; then the medical staff moves the skin preparation knife to comb the hair by the comb teeth of the comb sheet; the medical staff then controls the dermatome so that the combed hair comes into contact with the blade and is cut by the blade, while the hair between the comb plate and the blade, i.e., the hair to be cut in consideration of the reserve, is not cut, thereby cutting the hair to be cut off according to the preset setting and preserving the length of the hair to be cut off.

Claims

1. The utility model provides a skin preparation sword, its characterized in that includes skin preparation sword body (1) and fixed block (2), fixed block (2) are equipped with three at least stationary blade (21) to extending with one side, stationary blade (21) interval sets up, and is adjacent be formed with fixed slot (22) between stationary blade (21), be equipped with between fixed slot (22) cell wall and blade (11) terminal surface and be used for fixing spacing groove (12) of blade (11) and can stretch into protruding (23) of spacing groove, lie in stationary blade (21) in the outside in three at least stationary blades (21) and be fixed with comb piece (24), comb piece (24) have a plurality of spaced broach (241).

2. The skin preparation knife according to claim 1, characterized in that a gap exists between two adjacent comb teeth (241) of the comb plate (24), and the fixing block (2) and the fixing block (21) fixed with the comb plate (24) are provided with through slots (242) corresponding to the gap.

3. The dermatome of claim 1, characterized in that the handle (13) of the dermatome body (1) is provided with a blind hole (14) extending in the length direction of the handle (13) and opening outward, a fixing rod (15) extending in the length direction of the blade (11) is fixed to one end of the blade (11), and the fixing rod (15) extends into the blind hole (14) to realize the fixation of the blade (11) and the handle (13) in a matching manner.

4. The dermatome of claim 3, characterized in that the cross section of the fixing rod (15) is flat, the shape of the blind hole (14) matching the shape of the fixing rod (15).

5. The dermatome of claim 3, characterized in that the end surface of the comb teeth (241) away from the end of the fixing piece (21) is a spherical structure, and the other end of the blade (11) away from the fixing rod (15) is rounded.