CN212661881U

CN212661881U - Surgical knife

Info

Publication number: CN212661881U
Application number: CN202020457928.3U
Authority: CN
Inventors: 张争峰
Original assignee: Kunshan Android Medical Technology Co ltd
Current assignee: Jiangsu Android Medical Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-03-09
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to a scalpel, including cutter body and knife pouch, knife pouch slip cap is located on the cutter body, and the cutter body includes blade and handle of a knife, and the knife pouch has the opening that supplies the blade to wear out, still is equipped with the lock sleeve on the knife pouch, and on the handle of a knife was located to the lock sleeve slip cap, the inner wall of lock sleeve was equipped with first fixture block, leaves the clearance between lock sleeve and the handle of a knife, and the clearance is located the one side of keeping away from first fixture block on the lock sleeve, is equipped with first draw-in groove and second draw-in groove on the handle of a knife, first fixture block respectively with first draw-in groove, handle of a knife and: when the first clamping block is positioned in the first clamping groove, the blade is accommodated in the knife sleeve, and the blade and the knife handle are in a locking state relative to the knife sleeve; when the lock sleeve is pressed along the width direction of the knife handle and slides along the knife handle, the first clamping block is separated from the first clamping groove and slides to the second clamping groove along the knife handle, and the blade penetrates out of the knife sleeve from the opening; when the first clamping block is positioned in the second clamping groove, the blade is exposed outside the knife sleeve, and the blade and the knife handle are in a locking state relative to the knife sleeve.

Description

Surgical knife

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a scalpel.

Background

The scalpel is the essential instrument of carrying out surgery operation, and present scalpel mainly has fixed and telescopic two kinds, and the handle of a knife and the blade of fixed scalpel are together fixed to have the knife sheath of separation or be connected and detachable baffle protection blade with the handle of a knife, because knife sheath and baffle can separate with the scalpel, cause dropping or losing of knife sheath and baffle easily, exposed blade easily causes danger and also easily pollutes. The knife handle and the blade of the existing telescopic scalpel are separated, the knife handle and the blade are connected through a spring or other elastic objects, and the blade is retracted after external force is removed, for example, a safe scalpel disclosed in CN 102871706 a can push a top surface unlocking button arranged on a blade protecting sleeve after the scalpel is used, so that a first bulge on the blade protecting sleeve falls into a locking groove to enter a locking state, and the blade extends out after external force is applied. CN 202654191U discloses a scalpel, sets up button and the corresponding plastic spring piece of button respectively at the both sides of broach shell, presses the button during use, withstands the spring bolt on the plastic spring piece, and the spring bolt leaves the spout, then pulls the broach shell, can make the broach shell slide to the handle of a knife to expose the blade. After the use, the knife sleeve is pulled to slide on the blade. The telescopic scalpel avoids the defects of a fixed scalpel, but the structure is complex, the cost is high, and when elastic objects such as springs are damaged, the scalpel cannot be continuously used.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a scalpel, this scalpel simple structure, in the use, the knife pouch is located on the scalpel always, need not be with the help of connecting knife pouch and handle of a knife such as spring, convenient to use.

The utility model discloses a scalpel, including cutter body and knife pouch, knife pouch slip cap is located on the cutter body, the cutter body includes blade and handle of a knife, the knife pouch has the opening that supplies the blade to wear out, still be equipped with the lock sleeve on the knife pouch, the lock sleeve slip cap is located on the handle of a knife, the inner wall of lock sleeve is equipped with first fixture block, leave the clearance between lock sleeve and the handle of a knife, the clearance is located the one side of keeping away from first fixture block on the lock sleeve, be equipped with first draw-in groove and second draw-in groove on the handle of a knife, first fixture block respectively with first draw-in groove, handle of a knife and second draw-in groove cooperate in:

when the first clamping block is positioned in the first clamping groove, the blade is accommodated in the knife sleeve, and the blade and the knife handle are in a locking state relative to the knife sleeve;

when the lock sleeve is pressed along the width direction of the knife handle and slides along the knife handle, the first clamping block is separated from the first clamping groove and slides to the second clamping groove along the knife handle, and the blade penetrates out of the knife sleeve from the opening;

when the first clamping block is positioned in the second clamping groove, the blade is exposed outside the knife sleeve, and the blade and the knife handle are in a locking state relative to the knife sleeve.

Furthermore, the lock sleeve is connected with the knife sleeve through the connecting portion, the first hollowed-out portion and the second hollowed-out portion are arranged on the knife sleeve, the first hollowed-out portion and the second hollowed-out portion are located on two sides of the connecting portion respectively along the width direction of the knife handle, and when the lock sleeve is pressed along the width direction of the knife handle, the connecting portion elastically deforms. Preferably, the connection portion is an elastomer or a plastic.

Furthermore, a first strip-shaped groove and a second strip-shaped groove are formed in the cutter handle in the length direction, a first strip-shaped protrusion and a second strip-shaped protrusion are arranged on the inner wall of the cutter sleeve, the first strip-shaped protrusion slides along the first strip-shaped groove, and the second strip-shaped protrusion slides along the second strip-shaped groove.

Further, still be equipped with the second fixture block on the handle of a knife, be equipped with third fretwork portion on the broach shell and be located third fretwork portion one side and the spout that extends along broach shell length direction, the second fixture block cooperatees with third fretwork portion and spout respectively in order to form following different states:

when the first clamping block is positioned in the first clamping groove, the second clamping block is positioned in the third hollow part;

when the lock sleeve is pressed along the width direction of the knife handle and slides along the knife handle, the second clamping block is separated from the third hollow part and slides along the sliding groove.

Furthermore, the second clamping block is provided with an inclined surface, and the inclined surface inclines along the direction from close to far away from the tool holder.

Furthermore, the outer wall of the knife sleeve is provided with anti-skid stripes.

Furthermore, scales are arranged on the knife handle.

Further, the scale is located at an end remote from the blade.

Further, the blade is detachably connected with the tool handle.

Furthermore, the knife sleeve is transparent

Further, the knife pouch is made of an elastomer material.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the utility model discloses a locate the cutter body with the broach shell slip cap on and set up the opening on the broach shell, can realize in the use, the broach shell overlaps always and locates on the scalpel, and need not separate broach shell and cutter body, prevents that the broach shell from losing, guarantees safe in utilizationly and prevents that the blade from being contaminated. The utility model discloses utilize mutually supporting of first fixture block on lock sleeve and the lock sleeve and first draw-in groove and second draw-in groove, rely on the finger to press and promote and can realize that the blade exposes and accomodate from the knife sleeve in.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

FIG. 1 is a front view of the scalpel blade of the present invention in a state of being accommodated in a scalpel housing;

FIG. 2 is a schematic view of the reverse structure of the scalpel blade of the present invention in a state of being accommodated in a scalpel case;

FIG. 3 is a schematic perspective view of the scalpel of the present invention;

FIG. 4 is a schematic structural view of the scalpel in a disassembled state;

fig. 5 is a schematic front structural view of the scalpel body of the scalpel;

FIG. 6 is a schematic view of the reverse structure of the scalpel body of the present invention;

FIG. 7 is a schematic view of the blade of the scalpel of the present invention being exposed outside the sheath;

description of reference numerals:

1-a knife handle; 2-a knife sleeve; 3-a blade; 11-a second card slot; 12-graduation; 13-a label portion; 14-a hand-held portion; 15-a second strip groove; 16-a second fixture block; 17-a first bar-shaped groove; 18-a first card slot; 20-a first hollowed-out portion; 21-a second hollowed-out portion; 22-a lock sleeve; 23-anti-slip stripes; 24-a third hollowed-out portion; 25-a chute; 26-opening; 27-connecting part.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Examples

Referring to fig. 1-7, the utility model discloses a scalpel of preferred embodiment, including cutter body and knife pouch 2, knife pouch 2 slip cap is located on the cutter body, and the cutter body includes blade 3 and handle of a knife 1, and wherein the material of knife pouch 2 and handle of a knife 1 is plastics, and blade 3 is stainless steel. The blade 3 is detachably connected with the handle 1, and preferably, the blade 3 is clamped at one end of the handle 1.

In order to facilitate the users to see the internal structure of the knife pouch 2 clearly, the knife pouch 2 is transparent. One end of the knife sleeve 2 is provided with an opening 26, the other end of the knife sleeve is provided with a lock sleeve 22, the lock sleeve 22 is slidably sleeved on the knife handle 1, and when the lock sleeve 22 is pressed along the width direction of the knife handle 1 and the lock sleeve 22 slides along the knife handle 1, the blade 3 can slide out through the opening 26. The lock sleeve 22 is connected to the knife holder 2 through a connecting portion 27, and the connecting portion 27 is long and extends along the length direction of the knife holder 2. The knife sleeve 2 is provided with a first hollow-out portion 20 and a second hollow-out portion 21, and the first hollow-out portion 20 and the second hollow-out portion 21 are respectively located on two sides of the connecting portion 27 along the width direction of the knife handle 1. The second hollow portion 21 is L-shaped, and the shape thereof can be changed as required. The inner wall of lock sleeve 22 is equipped with first fixture block, leaves the clearance between lock sleeve 22 and the handle of a knife 1, and the clearance is located the one side of keeping away from first fixture block on lock sleeve 22, and when pressing lock sleeve 22 along the width direction of handle of a knife 1, lock sleeve 22 towards the finger direction of pressing remove to drive connecting portion 27 and take place elastic deformation, connecting portion 27 towards the finger direction of pressing crooked. The first clamping groove 18 and the second clamping groove 11 are formed in the tool shank 1, and when the locking sleeve 22 is pressed in the width direction of the tool shank 1, the width of the gap is enough to enable the first clamping block to be separated from the first clamping groove 18. The knife handle 1 is further provided with a second clamping block 16, and the knife sleeve 2 is provided with a third hollow-out portion 24 and a sliding groove 25 which is located on one side of the third hollow-out portion 24 and extends along the length direction of the knife sleeve 2.

The first clamping block is respectively matched with the first clamping groove 18, the tool handle 1 and the second clamping groove 11; the second fixture block 16 is respectively matched with the third hollow-out part 24 and the sliding groove 25; to form the following different states:

when the first clamping block is positioned in the first clamping groove 18, the blade 3 is accommodated in the knife holder 2, and the blade 3 and the knife handle 1 are in a locking state relative to the knife holder 2; the second fixture block 16 is positioned in the third hollow-out part 24;

when the locking sleeve 22 is pressed along the width direction of the knife handle 1 and the locking sleeve 22 slides along the knife handle 1, the first clamping block is separated from the first clamping groove 18 and slides to the second clamping groove 11 along the knife handle 1, the second clamping block 16 is separated from the third hollow-out portion 24 and slides along the sliding groove 25, and the blade 3 penetrates out of the knife sleeve 2 through the opening 26;

when the first clamping block is positioned in the second clamping groove 11, the blade 3 is exposed out of the knife holder 2, and the blade 3 and the knife handle 1 are in a locking state relative to the knife holder 2.

In order to more conveniently separate the second block 16 from the third hollow portion 24, an inclined surface is disposed on the second block 16, and the inclined surface is inclined in a direction from close to far away from the holder 1.

For better location knife pouch 2's slip direction, set up first bar groove 17 and the second bar groove 15 that extends along its length direction respectively at the both sides of handle of a knife 1 to set up first bar arch and second bar arch respectively in the position of first bar groove 17 and second bar groove 15 on the inner wall of handle of a knife 2, first bar arch and second bar arch are all towards handle of a knife 1 protrusion, when making knife pouch 2 slide along handle of a knife 1, first bar arch slides along first bar groove 17, second bar arch slides along second bar groove 15.

In order to increase the friction force between the fingers of the user and the knife sleeve 2 and more quickly realize the sliding of the knife sleeve 2 and the lock sleeve 22 relative to the knife handle 1, a plurality of anti-skid stripes 23 are arranged on the outer wall of the knife sleeve 2. In order to increase the functionality of the scalpel, a scale 12 is arranged at one end of the scalpel handle 1 far away from the blade 3. In order to distinguish different scalpels, a marking part 13 is arranged on each scalpel, the marking part 13 is carved characters or patterns, a concave handheld part 14 is arranged on the scalpel handle 1, and the handheld part 14 is positioned on one surface, without the scales 12, of the scalpel handle 1.

When the user need use the scalpel, press lock sleeve 22 to make lock sleeve 22 slide along handle of a knife 1, until first fixture block joint in second draw-in groove 11, blade 3 exposes outside the broach shell 2 this moment. After the use, press the lock sleeve 22, make the lock sleeve 22 slide along opposite direction, until the first fixture block joint in first draw-in groove 18, the blade 3 was accomodate in the broach shell 2 this moment.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a scalpel, includes cutter body and broach shell (2), broach shell (2) slip cap is located on the cutter body, the cutter body includes blade (3) and handle of a knife (1), its characterized in that: knife pouch (2) have opening (26) that supplies blade (3) to wear out, still be equipped with lock sleeve (22) on knife pouch (2), lock sleeve (22) slip cap is located on handle of a knife (1), the inner wall of lock sleeve (22) is equipped with first fixture block, lock sleeve (22) with leave the clearance between handle of a knife (1), the clearance is located keep away from on lock sleeve (22) one side of first fixture block, be equipped with first draw-in groove (18) and second draw-in groove (11) on handle of a knife (1), first fixture block respectively with first draw-in groove (18), handle of a knife (1) and second draw-in groove (11) cooperate in order to form following different states:

when the first clamping block is positioned in the first clamping groove (18), the blade (3) is accommodated in the knife sleeve (2), and the blade (3) and the knife handle (1) are in a locking state relative to the knife sleeve (2);

when the lock sleeve (22) is pressed along the width direction of the knife handle (1) and the lock sleeve (22) slides along the knife handle (1), the first clamping block is separated from the first clamping groove (18) and slides to the second clamping groove (11) along the knife handle (1), and the blade (3) penetrates out of the knife sleeve (2) through the opening (26);

when the first clamping block is positioned in the second clamping groove (11), the blade (3) is exposed out of the knife sleeve (2) and the blade (3) and the knife handle (1) are in a locking state relative to the knife sleeve (2).

2. The scalpel of claim 1, wherein: the lock sleeve (22) is connected with the knife sleeve (2) through a connecting portion (27), a first hollowed-out portion (20) and a second hollowed-out portion (21) are arranged on the knife sleeve (2), and along the width direction of the knife handle (1), the first hollowed-out portion (20) and the second hollowed-out portion (21) are located on two sides of the connecting portion (27) respectively.

3. The scalpel of claim 1, wherein: be equipped with on handle of a knife (1) along first bar groove (17) and second bar groove (15) that its length direction set up, be equipped with first bar arch and second bar arch on the inner wall of broach shell (2), first bar arch is followed first bar groove (17) slide, second bar arch is followed second bar groove (15) slide.

4. The scalpel of claim 1, wherein: still be equipped with second fixture block (16) on handle of a knife (1), be equipped with third fretwork portion (24) and be located on broach shell (2) third fretwork portion (24) one side and follow spout (25) that broach shell (2) length direction extends, second fixture block (16) respectively with third fretwork portion (24) and spout (25) cooperate in order to form following different states:

when the first fixture block is positioned in the first clamping groove (18), the second fixture block (16) is positioned in the third hollow-out part (24);

when the lock sleeve (22) is pressed along the width direction of the knife handle (1) and the lock sleeve (22) slides along the knife handle (1), the second fixture block (16) is separated from the third hollow-out portion (24) and slides along the sliding groove (25).

5. The scalpel of claim 4, wherein: the second fixture block (16) is provided with an inclined surface, and the inclined surface inclines along the direction from close to far away from the tool holder (1).

6. The scalpel of claim 1, wherein: the outer wall of the knife sleeve (2) is provided with anti-skid stripes (23).

7. The scalpel of claim 1, wherein: scales (12) are arranged on the knife handle (1).

8. The scalpel of claim 7, wherein: the scale (12) is positioned at one end far away from the blade (3).

9. The scalpel of claim 1, wherein: the blade (3) is detachably connected with the knife handle (1).

10. The scalpel of claim 1, wherein: the knife sleeve (2) is transparent.