CN219089460U - Rotatable cutter assembly for anastomat - Google Patents

Abstract

The utility model discloses a cutting knife assembly for a rotatable anastomat, which comprises a push rod, wherein a fixed sleeve is arranged at the bottom of the push rod, a cutting knife is arranged in the fixed sleeve, and the fixed sleeve is fixedly connected with the cutting knife through a clamping and fixing mechanism. According to the utility model, the clamping fixing mechanism is arranged, when the cutter is dismounted, the clamping block is inserted into the rod through the insertion hole, the cutter body part is pulled downwards to enable the clamping block to be separated from the clamping groove, the cutting knife can be taken out, the clamping block is pressed to enable the clamping block to enter the fixing groove when the cutter is mounted, the pressure spring is in a compressed state, then the cutter head part is inserted into the fixing sleeve, when the clamping block moves the clamping groove, the clamping block enters the clamping groove under the elastic force of the pressure spring, the mounting of the cutting knife is completed, when the cutting knife is required to be maintained, the push rod is not required to be replaced together, the use cost is reduced, the replacement operation of the cutting knife is convenient, simple and rapid, and the maintenance of the cutting knife is convenient.

Description

Rotatable cutter assembly for anastomat

Technical Field

The utility model relates to the technical field of anastomat, in particular to a rotatable cutter assembly for an anastomat.

Background

The anastomat is a device used in medicine to replace manual suturing, and the main working principle is to separate or anastomose tissues by using titanium nails, and similar to a stapler, a cutting knife assembly is needed in the rotatable anastomat.

At present, when the conventional cutting knife assembly for the rotary anastomat is used, the cutter head in the cutting knife is usually fixedly connected with the push rod, and when the cutter head needs to be maintained, the push rod needs to be replaced together, so that the use cost is increased, and great inconvenience is brought to a user.

Disclosure of Invention

The present utility model is directed to a cutting knife assembly for a rotatable stapler, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the cutting knife assembly for the rotatable anastomat comprises a push rod, wherein a fixed sleeve is arranged at the bottom of the push rod, a cutting knife is arranged in the fixed sleeve, and the fixed sleeve is fixedly connected with the cutting knife through a clamping and fixing mechanism;

the clamping fixing mechanism comprises two fixing grooves, the two fixing grooves are respectively formed in the left side and the right side of the cutting knife, clamping blocks are arranged in the fixing grooves, clamping grooves are formed in the left side and the right side of the inner wall of the fixing sleeve, one side of the clamping blocks, far away from the cutting knife, penetrates through the clamping grooves and extends to the inside of the clamping blocks, one side, far away from the clamping grooves, of the clamping blocks is fixedly connected with the inner wall of the fixing grooves through a pressure spring, and inserting holes which are mutually communicated with the clamping grooves are formed in the left side and the right side of the fixing sleeve.

Further, the cutting knife comprises a knife head part, a knife body part and a knife edge part, wherein the knife body part is arranged at the bottom of the knife head part, the knife edge part is arranged at the bottom of the knife body part, the fixing groove is formed in the outer surface of the knife head part, the top of the knife head part penetrates through the fixing sleeve and extends to the inside of the fixing sleeve, the top of the knife head part is provided with a first fixing hole, the top of the knife body part is provided with a second fixing hole, the inside of the first fixing hole is movably connected with a fixing rod, the bottom of the fixing rod is provided with a threaded rod, the surface of the threaded rod is in threaded connection with the second fixing hole, the top end of the fixing rod penetrates through the fixing sleeve and extends to the outside of the fixing sleeve, and the surface of the fixing rod outside the fixing sleeve is in threaded connection with a locking nut.

Further, the blade body part and the blade edge part are integrally formed, and the bottom of the blade head part is tightly contacted with the blade body part.

Further, the outer surface of the cutter head part is tightly contacted with the inner wall of the fixed sleeve.

Further, a positioning hole is formed in the bottom of the push rod, a positioning rod is mounted at the top of the cutter head portion, and the top end of the positioning rod penetrates through the positioning hole and extends to the inside of the positioning rod.

Further, the top and the bottom of fixed slot inner wall all are provided with the spacing groove, sliding connection has the stopper on the inner wall of spacing groove, one side and fixture block fixed connection that the spacing groove was kept away from to the stopper.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the clamping fixing mechanism is arranged, when the cutter is dismounted, the clamping block is inserted into the rod through the insertion hole, the cutter body part is pulled downwards to enable the clamping block to be separated from the clamping groove, the cutting knife can be taken out, the clamping block is pressed to enable the clamping block to enter the fixing groove when the cutter is mounted, the pressure spring is in a compressed state, then the cutter head part is inserted into the fixing sleeve, when the clamping block moves in the clamping groove position, the clamping block enters the clamping groove under the elastic force of the pressure spring, the mounting of the cutting knife is completed, when the cutting knife is required to be maintained, the push rod is not required to be replaced together, the use cost is reduced, the replacement operation of the cutting knife is convenient, the cutter is simple and rapid, the maintenance of the cutting knife is convenient, and great convenience is brought to a user.

2. According to the utility model, the cutting knife is arranged, the cutting knife comprises the knife head part, the knife body part and the knife edge part, the fixing rod is inserted into the first fixing hole through the top of the fixing sleeve, the threaded rod at the bottom of the fixing rod is rotatably inserted into the second fixing hole, and the fixing rod is locked through the locking nut, so that the installation stability of the cutting knife is further improved, the shaking of the cutting knife is avoided, the knife edge part can be further disassembled and assembled, the maintenance cost is reduced, and great convenience is brought to a user.

3. According to the utility model, the positioning hole and the positioning rod are matched with each other, so that the positioning function of the head part is realized, the head part is more tightly connected with the fixed sleeve, the head part is prevented from moving, and the movement stability of the clamping block is ensured through the mutual matching of the limiting groove and the limiting block.

Drawings

FIG. 1 is a cross-sectional view of a front view of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1A in accordance with the present utility model;

FIG. 3 is an enlarged view of a portion of B of FIG. 2 in accordance with the present utility model;

fig. 4 is a schematic view of the connection structure of the cutter head part, the cutter body part and the cutter edge part according to the present utility model.

In the figure: the device comprises a push rod 1, a fixing sleeve 2, a cutting knife 3, a knife head 31, a knife body 32, a knife edge 33, a first fixing hole 34, a second fixing hole 35, a fixing rod 36, a threaded rod 37, a locking nut 38, a clamping fixing mechanism 4, a fixing groove 41, a clamping block 42, a pressure spring 43, a pressure spring 44 inserting hole 45, a clamping groove 45, a positioning hole 5, a positioning rod 6, a limiting groove 7 and a limiting block 8.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-4, a cutting knife assembly for a rotatable anastomat comprises a push rod 1, a fixed sleeve 2 is arranged at the bottom of the push rod 1, a cutting knife 3 is arranged in the fixed sleeve 2, and the fixed sleeve 2 is fixedly connected with the cutting knife 3 through a clamping and fixing mechanism 4.

The clamping fixing mechanism 4 comprises two fixing grooves 41, the two fixing grooves 41 are respectively arranged on the left side and the right side of the cutting knife 3, clamping blocks 42 are arranged in the fixing grooves 41, clamping grooves 45 are respectively arranged on the left side and the right side of the inner wall of the fixing sleeve 2, one side of each clamping block 42, which is far away from the cutting knife 3, penetrates through the clamping grooves 45 and extends to the inside of the clamping grooves, one side of each clamping block 42, which is far away from the clamping grooves 45, is fixedly connected with the inner wall of the fixing groove 41 through a pressure spring 43, the left side and the right side of each fixing sleeve 2 are respectively provided with an inserting hole 44 which is mutually communicated with the clamping grooves 45, limiting grooves 7 are respectively arranged on the top and the bottom of the inner wall of the fixing groove 41, limiting blocks 8 are slidably connected on the inner wall of the limiting grooves 7, one side, which is far away from the limiting grooves 7, of each limiting block 8 is fixedly connected with the corresponding clamping blocks 42, and the moving stability of the clamping blocks 42 is guaranteed through the mutual cooperation of the limiting grooves 7 and the limiting blocks 8.

According to the scheme of the utility model, the clamping fixing mechanism 4 is arranged, when the cutter is dismounted, the clamping block 42 is pushed out of the clamping groove 45 through the inserting hole 44 and the cutter body 32 is pulled downwards, so that the clamping block 42 is separated from the clamping groove 45, the cutting knife 3 can be taken out, the clamping block 42 is pressed when being mounted, the clamping block 42 enters the fixing groove 41, the pressure spring 43 is in a compressed state, then the cutter head 31 is inserted into the fixing sleeve 2, the clamping block 42 enters the clamping groove 45 under the elastic force of the pressure spring 43 when the clamping block 42 moves the clamping groove 45, the mounting of the cutting knife 3 is completed, when the cutting knife 3 needs to be maintained, the push rod 1 does not need to be replaced together, the use cost is reduced, the replacement operation of the cutting knife 3 is convenient, simple and quick, and the maintenance of the cutting knife 3 is convenient.

Referring to fig. 1-4, the cutter 3 includes a cutter head 31, a cutter body 32 and a cutter edge 33, the cutter body 32 is disposed at the bottom of the cutter head 31, the cutter edge 33 is disposed at the bottom of the cutter body 32, the cutter body 32 and the cutter edge 33 are integrally formed, the bottom of the cutter head 31 is tightly contacted with the cutter body 32, the bottom of the push rod 1 is provided with a positioning hole 5, the top of the cutter head 31 is provided with a positioning rod 6, the top of the positioning rod 6 penetrates through the positioning hole 5 and extends to the inside thereof, the positioning hole 5 and the positioning rod 6 are matched with each other, the effect of positioning the cutter head 31 is achieved, the cutter head 31 is tightly connected with the fixing sleeve 2, the fixing groove 41 is disposed on the outer surface of the cutter head 31, the top of the cutter head 31 penetrates through the fixing sleeve 2 and extends to the inside thereof, the outer surface of the cutter head 31 is tightly contacted with the inner wall of the fixing sleeve 2, the top of the cutter head 31 is provided with a first fixing hole 34, the top of the cutter body 32 is provided with a second fixing hole 35, the inner movable connecting rod 36 is movably connected with the first fixing hole 34 and the threaded rod 36 is movably connected with the second fixing sleeve 36, the threaded rod 36 is fixedly connected with the outer surface of the threaded rod 37, and the threaded rod 37 is fixedly connected with the threaded rod 37, and the threaded rod is fixedly connected with the threaded rod 37.

According to the scheme of the utility model, the cutter 3 is arranged, the cutter 3 comprises the cutter head part 31, the cutter body part 32 and the cutter edge part 33, the fixing rod 35 is inserted into the top of the fixing sleeve 2, the fixing rod 35 is inserted into the first fixing hole 34, the threaded rod 37 at the bottom of the fixing rod 35 is rotatably inserted into the second fixing hole 35, the fixing rod 36 is locked through the locking nut 38, the installation stability of the cutter 3 is further improved, the cutter 3 is prevented from shaking, the cutter edge part 33 can be further disassembled and assembled, and the maintenance cost is reduced.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

During the use, the whole of cutting knife 3 takes place to damage, need change, through rotatory lock nut 38, take out lock nut 38 from the surface of dead lever 36, insert a pole through patchhole 44, it is integrative with blade portion to push out fixture block 42, pull blade portion 32 downwards, make fixture block 42 and draw-in groove 45 break away from, can take out cutting knife 3, take out a new cutting knife 3, then press fixture block 42, make fixture block 42 get into dead slot 41, pressure spring 43 is in compressed state, then insert blade portion 31 in fixed sleeve 2, when fixture block 42 removes the draw-in groove 45 position, fixture block 42 gets into in clamping slot 45 under pressure spring 43's elasticity effect, accomplish the installation to cutting knife 3, when blade portion 33 takes place to damage, the blade portion is integrative with blade portion, through rotatory lock nut 38, take out lock nut 38 from the surface of dead lever 36, then rotatory dead lever 36 makes threaded rod 37 take place to break away from with blade portion 32, then make blade portion 32 and blade portion 31 break away from, then place new blade portion 32 and place in dead lever portion 31, the elasticity effect gets into clamping nut 32, make blade portion 32 rotate, make blade portion 32 and insert into the dead lever portion, thereby the whole bit portion is fixed to be connected to blade portion 32, the bit portion is replaced, the head portion is fixed to blade portion is replaced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A cutting knife assembly for a rotatable stapler, comprising a push rod (1), characterized in that: the bottom of the push rod (1) is provided with a fixed sleeve (2), a cutting knife (3) is arranged in the fixed sleeve (2), and the fixed sleeve (2) is fixedly connected with the cutting knife (3) through a clamping and fixing mechanism (4);

the clamping fixing mechanism (4) comprises two fixing grooves (41), the two fixing grooves (41) are respectively formed in the left side and the right side of the cutting knife (3), clamping blocks (42) are arranged in the fixing grooves (41), clamping grooves (45) are formed in the left side and the right side of the inner wall of the fixing sleeve (2), one side, far away from the cutting knife (3), of the clamping blocks (42) penetrates through the clamping grooves (45) and extends to the inside of the clamping grooves, one side, far away from the clamping grooves (45), of the clamping blocks (42) is fixedly connected with the inner wall of the fixing grooves (41) through a pressure spring (43), and inserting holes (44) which are mutually communicated with the clamping grooves (45) are formed in the left side and the right side of the fixing sleeve (2).

2. The rotary stapler cutting blade assembly according to claim 1, wherein: the utility model provides a cutting knife (3) including blade portion (31), blade portion (32) and cutting edge portion (33), blade portion (32) set up the bottom at blade portion (31), cutting edge portion (33) set up the bottom at blade portion (32), fixed slot (41) set up the surface at blade portion (31), the top of blade portion (31) runs through fixed cover (2) and extends to its inside, the top of blade portion (31) is provided with first fixed orifices (34), the top of blade portion (32) is provided with second fixed orifices (35), the inside swing joint of first fixed orifices (34) has dead lever (36), threaded rod (37) are installed to the bottom of dead lever (36), threaded rod (37) surface and second fixed orifices (35) threaded connection, the top of dead lever (36) runs through fixed cover (2) and extends to the surface of dead lever (36) outside fixed cover (2) threaded connection has locking nut (38).

3. The cutter assembly for a rotatable stapler according to claim 2, wherein: the blade part (32) and the blade part (33) are integrally formed, and the bottom of the blade part (31) is tightly contacted with the blade part (32).

4. A rotary stapler cutting blade assembly according to claim 3, wherein: the outer surface of the cutter head part (31) is tightly contacted with the inner wall of the fixed sleeve (2).

5. The rotary stapler cutting blade assembly according to claim 4, wherein: the bottom of push rod (1) is provided with locating hole (5), locating lever (6) are installed at the top of tool bit portion (31), locating hole (5) are run through on the top of locating lever (6) and extend to its inside.

6. The rotary stapler cutting blade assembly according to claim 4, wherein: the top and the bottom of fixed slot (41) inner wall all are provided with spacing groove (7), sliding connection has stopper (8) on the inner wall of spacing groove (7), one side and fixture block (42) fixed connection of spacing groove (7) are kept away from to stopper (8).

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