阅读说明：本技术 一种手术刀 (Surgical knife ) 是由 张争峰 于 2020-04-01 设计创作，主要内容包括：本发明涉及一种手术刀,包括刀体及刀套,刀套滑动套设于刀体上,刀体包括刀片和刀柄,刀套具有供刀片穿出的开口,刀套上还设有锁套,锁套滑动套设于刀柄上,锁套的内壁设有第一卡块,锁套与刀柄之间留有间隙,间隙位于锁套上远离第一卡块的一侧,刀柄上设有第一卡槽和第二卡槽,第一卡块分别与第一卡槽、刀柄和第二卡槽相配合以形成不同状态：第一卡块位于第一卡槽内时,刀片收纳于刀套内且刀片和刀柄相对于刀套处于锁定状态；沿刀柄的宽度方向按压锁套并使锁套沿刀柄滑动时,第一卡块从第一卡槽内脱离并沿刀柄滑动到第二卡槽,刀片由开口穿出刀套；第一卡块位于第二卡槽内时,刀片暴露于刀套外且刀片和刀柄相对于刀套处于锁定状态。(The invention relates to a scalpel, which comprises a scalpel body and a scalpel sleeve, wherein the scalpel sleeve is slidably sleeved on the scalpel body, the scalpel body comprises a blade and a scalpel handle, the scalpel sleeve is provided with an opening through which the blade penetrates, the scalpel sleeve is also provided with a lock sleeve, the lock sleeve is slidably sleeved on the scalpel handle, the inner wall of the lock sleeve is provided with a first clamping block, a gap is reserved between the lock sleeve and the scalpel handle, the gap is positioned on one side of the lock sleeve, which is far away from the first clamping block, the scalpel handle is provided with a first clamping groove and a second clamping groove, and the first clamping block is respectively matched with the first clamping groove, the scalpel handle and the second clamping: 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.)

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.

Technical Field

The invention relates to the field of medical instruments, in particular 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.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a scalpel which is simple in structure, a scalpel sleeve is always sleeved on the scalpel in the using process, the scalpel sleeve and a scalpel handle do not need to be connected by virtue of a spring and the like, and the scalpel is convenient to use.

The invention discloses a scalpel, which comprises a scalpel body and a scalpel sleeve, wherein the scalpel sleeve is slidably sleeved on the scalpel body, the scalpel body comprises a blade and a scalpel handle, the scalpel sleeve is provided with an opening through which the blade penetrates, the scalpel sleeve is also provided with a lock sleeve, the lock sleeve is slidably sleeved on the scalpel handle, the inner wall of the lock sleeve is provided with a first clamping block, a gap is reserved between the lock sleeve and the scalpel handle, the gap is positioned on one side of the lock sleeve, which is far away from the first clamping block, the scalpel handle is provided with a first clamping groove and a second clamping groove, and the first clamping block is respectively matched with the first clamping groove, the scalpel handle and the second clamping groove to:

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.

By the scheme, the invention at least has the following advantages:

according to the scalpel handle, the scalpel sleeve is slidably sleeved on the scalpel body, and the opening is formed in the scalpel sleeve, so that the scalpel sleeve is always sleeved on the scalpel in the using process without being separated from the scalpel body, the scalpel sleeve is prevented from being lost, the using safety is ensured, and the blade is prevented from being polluted. According to the invention, the lock sleeve and the first clamping block on the lock sleeve are matched with the first clamping groove and the second clamping groove, and the blade can be exposed and accommodated from the inside of the knife sleeve by pressing and pushing with fingers.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a front view of a scalpel blade of the present invention in a state of being received 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 stored in a sheath;

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

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

FIG. 5 is a front 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 shown exposed from the holster;

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 embodiments of the present invention is provided in connection with 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.