CN219000476U - Human tissue cutting knife - Google Patents

Abstract

The utility model provides a human tissue cutting knife, which relates to the technical field of tissue cutting knives and comprises a knife handle, wherein a blade is movably embedded in the outer surface of one side of the knife handle, a fixed rod is fixedly arranged on the front surface of the blade close to the right side, a fixed plate is fixedly arranged on the outer surface of one side of the blade, and a pushing block is fixedly arranged on the front surface of the fixed rod. When the cutter is used, shallower human tissues are required to be cut, the pushing block can be moved rightwards to drive the blades to move rightwards in the fixed groove, the length of the blades outside is shortened, the clamping plate is pressed after the blades are rightwards moved to a proper distance by the pushing block, the clamping buckle is clamped into a trapezoid space between each group of trapezoid blocks, the clamping plate and the pushing block are clamped, the positions of the blades are fixed, the effect of adjusting the length is achieved, and the length of the blades is shortened, so that the long blades are prevented from scratching surrounding normal tissues.

Description

Human tissue cutting knife

Technical Field

The utility model relates to the technical field of tissue cutting tools, in particular to a human tissue cutting knife.

Background

The medical equipment refers to instruments, equipment, appliances, materials or other articles used for a human body, and also comprises needed software, an auxiliary tool essential for a doctor is a scalpel during operation, and the scalpel refers to a special cutter consisting of a blade and a knife handle and used for cutting human body or animal body tissues, and is an indispensable important operation tool in surgical operation.

In the prior art, for example, chinese patent numbers: CN208989050U discloses a tissue knife for neurosurgery cutting human tissue, which comprises a knife body, a knife handle, a liquid storage unit, a reverse blocking mechanism, a control valve and a suction unit. The cutter body part of the cutter body is provided with a collecting hole suitable for flowing in of the accumulated liquid, the cutter body part is internally provided with a flow guide pore canal communicated with the collecting hole, and the periphery of the collecting hole is provided with a plurality of protruding parts positioned on the surface of the cutter body. The control valve, the liquid storage unit and the reverse blocking mechanism are arranged in the cutter handle, the output port of the flow guiding pore canal, the reverse blocking mechanism and the input port of the liquid storage unit are sequentially and hermetically communicated, and the control valve is arranged in a flow path where the flow guiding pore canal is communicated with the reverse blocking mechanism. The output port of the liquid storage unit is communicated with the input port of the suction unit in a sealing way, and the output port of the suction unit is communicated with a negative pressure pipeline which is maintained by a negative pressure system in a sealing way. The tissue knife can timely remove the effusion at the tissue incision, is beneficial to the concentration of doctors, has high operation efficiency, short time consumption and less blood loss, and can avoid the blockage of the collection hole by incision tissues.

In the above patent, although the tissue knife for cutting human tissue in neurosurgery can timely remove the effusion at the tissue incision, the operation efficiency is high, and the collection hole can be prevented from being blocked by the incision tissue, the patent still has an improvement, for example, when the surgical knife is needed to cut part of human tissue in the operation process, as the surgical knife can not adjust the length of the knife blade, when the shallower tissue is cut, the edge of the long knife blade is careless, the surrounding human tissue is easily scratched, so that normal tissue is damaged, medical staff needs to treat the wound additionally, the working difficulty is increased, and a certain medical accident risk exists.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, the length of a blade cannot be adjusted by a scalpel, when shallow tissue cutting is carried out, the edge of a long blade is careless, surrounding human tissues are easily scratched, normal tissues are damaged, applicability is poor, medical staff needs to treat wounds additionally, working difficulty is increased, and a certain medical accident risk exists.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a human tissue cutting knife, includes the handle of a knife, one side surface activity of handle of a knife inlays and is equipped with the blade, the front surface fixed mounting that the blade is close to the right side has the dead lever, one side surface fixed mounting of blade has the fixed plate, the front surface fixed mounting of dead lever has the impeller block, the top and the bottom of impeller block all activity inlay and are equipped with the connecting rod, two the one end fixed mounting of connecting rod has the cardboard, the rear surface fixed mounting of cardboard has two buckles, the front surface fixed mounting of handle of a knife has a plurality of trapezoidal pieces.

Preferably, the fixed slot is arranged in the handle, a protective sleeve is fixedly arranged on the outer surface of one side of the handle, which is close to the bottom, of the handle, a long sliding block is fixedly arranged at the top of the fixed slot, and a short sliding block is fixedly arranged at the bottom of the fixed slot.

Preferably, the front surface of the knife handle is provided with a chute, and the outer surface of the fixing rod is movably embedded in the chute.

Preferably, two movable telescopic rods are fixedly arranged on the outer surface of one side of the fixed plate, and springs are arranged on the outer surfaces of the two movable telescopic rods.

Preferably, one ends of the two springs are fixedly arranged on the outer surface of one side of the fixed plate, and the other ends of the two springs and one ends of the two movable telescopic rods are fixedly arranged on the inner wall of the fixed groove.

Preferably, the outer surface of the fixing plate is movably embedded in the fixing groove, a first square groove is formed in the top of the blade, and a second square groove is formed in the bottom of the blade.

Preferably, the bottom of the long sliding block is movably embedded in the first square groove, and the top of the short sliding block is movably embedded in the second square groove.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. when the cutter is used, shallower human tissues are required to be cut, the pushing block can be moved rightwards to drive the blades to move rightwards in the fixed groove, the length of the blades outside is shortened, the clamping plate is pressed after the blades are rightwards moved to a proper distance by the pushing block, the clamping plate is clamped into a trapezoid space between each group of trapezoid blocks, the clamping plate and the pushing block are clamped, the positions of the blades are fixed, the effect of adjusting the length is achieved, the applicability is improved by shortening the length of the blades, and the long blades are prevented from scratching surrounding normal tissues.

2. When the utility model is used, the protective sleeve is positioned below the blade, so that the blade can be further prevented from scratching other normal human tissues, and the sliding of the blade is facilitated and the blade is prevented from shifting under the limitation of the long sliding block and the short sliding block.

Drawings

Fig. 1 is a front perspective view of a human tissue cutter according to the present utility model;

fig. 2 is a partially sectional perspective view of a human tissue cutter according to the present utility model;

FIG. 3 is an expanded perspective view showing a part of the structure of a human tissue cutting blade according to the present utility model;

FIG. 4 is an exploded perspective view of another angular portion of a human tissue cutting blade according to the present utility model;

FIG. 5 is an enlarged perspective view of FIG. 1 at A;

fig. 6 is an enlarged perspective view of B of fig. 4.

Legend description: 1. a knife handle; 2. a chute; 3. a clamping plate; 4. a pushing block; 5. a protective sleeve; 6. a blade; 7. a fixed rod; 8. a fixing plate; 9. a movable telescopic rod; 10. a spring; 11. a fixing groove; 12. a connecting rod; 13. a trapezoid block; 14. a buckle; 15. a long slide block; 16. a short slider; 17. a second square groove; 18. a first square groove.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

1, as shown in fig. 1-6, the utility model provides a human tissue cutting knife, which comprises a knife handle 1, wherein a blade 6 is movably embedded in one side outer surface of the knife handle 1, a fixed rod 7 is fixedly installed on one side outer surface of the blade 6 close to the right side, a fixed plate 8 is fixedly installed on one side outer surface of the blade 6, a pushing block 4 is fixedly installed on the front surface of the fixed rod 7, connecting rods 12 are movably embedded in the top and bottom of the pushing block 4, clamping plates 3 are fixedly installed at one ends of the two connecting rods 12, two buckles 14 are fixedly installed on the rear surface of the clamping plates 3, a plurality of trapezoid blocks 13 are fixedly installed on the front surface of the knife handle 1, a sliding groove 2 is formed in the front surface of the knife handle 1, the outer surface of the fixed rod 7 is movably embedded in the sliding groove 2, two movable telescopic rods 9 are fixedly installed on one side outer surface of the fixed plate 8, springs 10 are respectively arranged on the outer surfaces of the two movable telescopic rods 9, one ends of the two springs 10 are respectively fixedly installed on one side outer surface of the fixed plate 8, and the other ends of the two springs 10 and one ends of the two movable telescopic rods 9 respectively are fixedly installed on the inner walls of the fixed groove 11.

The effect that its whole embodiment 1 reached is, when using, need cut shallower human tissue, can be through right removal impeller 4, drive blade 6 at fixed slot 11 inside right removal, shorten the outside length of blade 6, every two trapezoidal pieces 13 divide into a set of, form a front narrow wide trapezoidal space in back between every group trapezoidal piece 13, as shown in fig. 5, the structure of two buckles 14 is as shown in fig. 6, the surface setting that is close to the bottom is the arc that outwards protrudes, after moving blade 6 to suitable distance right through impeller 4, press cardboard 3 to the direction of handle of a knife 1, with the trapezoidal space between each group trapezoidal piece 13 of buckle 14 card, through blocking cardboard 3 and impeller 4, fix the position of blade 6, thereby reach the effect that can adjust the length, be fit for cutting shallow human tissue, avoid the normal tissue around the fish tail of long blade 6, improve the suitability, the problem is solved because the scalpel can not adjust the length of blade 6, when carrying out the incision of shallow tissue, a long blade 6 is careful when the edge scratch is difficult, the medical accident is needed to the wound is easily carried out to the wound, in addition, the medical accident is easy to the health care has been had, the problem is easy to the health care is had.

In embodiment 2, as shown in fig. 1-6, a fixing groove 11 is formed in the handle 1, a protecting sleeve 5 is fixedly mounted on the outer surface of one side, close to the bottom, of the handle 1, a long sliding block 15 is fixedly mounted on the top of the inner portion of the fixing groove 11, a short sliding block 16 is fixedly mounted on the bottom of the inner portion of the fixing groove 11, the outer surface of a fixing plate 8 is movably embedded in the inner portion of the fixing groove 11, a first square groove 18 is formed in the top of the blade 6, a second square groove 17 is formed in the bottom of the blade 6, the bottom of the long sliding block 15 is movably embedded in the inner portion of the first square groove 18, and the top of the short sliding block 16 is movably embedded in the inner portion of the second square groove 17.

The whole embodiment 2 achieves the effect that when the protective sleeve 5 is positioned below the blade 6, the blade 6 can be further prevented from scratching other normal human tissues, and the sliding of the blade 6 is facilitated and the blade 6 is prevented from shifting under the limitation of the long sliding block 15 and the short sliding block 16.

Working principle: when the cutter is used, shallower human tissues need to be cut, the pushing block 4 can be moved rightwards, the blades 6 can be driven to move rightwards in the fixed groove 11, the length of the blades 6 outside is shortened, every two trapezoidal blocks 13 are divided into one group, a trapezoidal space with a narrow front and a wide rear is formed between each group of trapezoidal blocks 13, as shown in fig. 5, the structures of the two buckles 14 are as shown in fig. 6, the outer surfaces close to the bottoms are arranged into outwards protruding arc shapes, the blades 6 are moved rightwards to a proper distance through the pushing block 4, the clamping plates 3 are pressed towards the cutter handle 1, the buckles 14 are clamped into the trapezoidal space between each group of trapezoidal blocks 13, the positions of the blades 6 are fixed through the clamping plates 3 and the pushing block 4, the length of the blades 6 can be adjusted, normal tissues around the scratches of the long blades 6 are avoided through shortening the length of the blades 6, when the cutter is used, the protective sleeve 5 is positioned below the blades 6, other normal human tissues can be further prevented from being scratched by the blades 6, and the sliding of the blades 6 is prevented from being deviated under the limitation of the long sliding blocks 15 and the short sliding blocks 16.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (7)

1. The utility model provides a human tissue cutting knife, includes handle of a knife (1), its characterized in that: one side surface activity of handle of a knife (1) inlays and is equipped with blade (6), the front surface fixed mounting that blade (6) are close to the right side has dead lever (7), one side surface fixed mounting of blade (6) has fixed plate (8), the front surface fixed mounting of dead lever (7) has pushing block (4), the top and the bottom of pushing block (4) all activity inlay and are equipped with connecting rod (12), two the one end fixed mounting of connecting rod (12) has cardboard (3), the rear surface fixed mounting of cardboard (3) has two buckles (14), the front surface fixed mounting of handle of a knife (1) has a plurality of trapezoidal pieces (13).

2. A human tissue cutting burr according to claim 1, wherein: the utility model discloses a handle of a knife, including handle of a knife (1), fixed slot (11) have been seted up to the inside of handle of a knife (1), one side surface fixed mounting that handle of a knife (1) is close to the bottom has protective sheath (5), the inside top fixed mounting of fixed slot (11) has long slider (15), the inside bottom fixed mounting of fixed slot (11) has short slider (16).

3. A human tissue cutting burr according to claim 1, wherein: the front surface of the knife handle (1) is provided with a chute (2), and the outer surface of the fixed rod (7) is movably embedded in the chute (2).

4. A human tissue cutting burr according to claim 3, wherein: two movable telescopic rods (9) are fixedly arranged on the outer surface of one side of the fixed plate (8), and springs (10) are arranged on the outer surfaces of the two movable telescopic rods (9).

5. The human tissue cutting burr of claim 4, wherein: one end of each spring (10) is fixedly arranged on the outer surface of one side of the fixed plate (8), and the other end of each spring (10) and one end of each movable telescopic rod (9) are fixedly arranged on the inner wall of the fixed groove (11).

6. A human tissue cutting burr according to claim 2, wherein: the outer surface of the fixing plate (8) is movably embedded in the fixing groove (11), a first square groove (18) is formed in the top of the blade (6), and a second square groove (17) is formed in the bottom of the blade (6).

7. The human tissue cutting burr of claim 6, wherein: the bottom of the long sliding block (15) is movably embedded in the first square groove (18), and the top of the short sliding block (16) is movably embedded in the second square groove (17).

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