CN111728673A

CN111728673A - Medical scalpel

Info

Publication number: CN111728673A
Application number: CN202010586719.3A
Authority: CN
Inventors: 张永杰; 单琦; 卢飞
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: Luoyang Jiaze Medical Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2020-10-02
Anticipated expiration: 2040-06-24
Also published as: CN111728673B

Abstract

The invention discloses a medical scalpel, which comprises a scalpel handle, wherein a piezoelectric body is arranged in the scalpel handle, a push rod is arranged on the upper portion of the piezoelectric body, convex teeth are arranged at one end, away from the piezoelectric body, of the push rod, a rotating gear is arranged below the convex teeth and meshed with the convex teeth, a rotating column is arranged on the right side of the rotating gear, a second scalpel handle is arranged on the right side of the rotating column, a blade clamping column is arranged on the right side of the second scalpel handle, a blade clamping groove is arranged on the position, corresponding to the blade clamping column, of the blade, a concave hole is formed in one end, away from the second scalpel handle, of the scalpel handle, and a cold and hot switch and a. When an operation is performed, tissues such as skin and muscle on the surface, normal tissues and pathological tissues in a body are cut, a traditional straight-handle scalpel is always used, the tissues on the surface are convenient, but sometimes, for some tissues hidden in a human body, a straight-handle scalpel handle is a great encumbrance in the operation process sometimes in the cutting operation.

Description

Medical scalpel

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a medical scalpel.

Background

The scalpel used by the surgeon in the hospital is divided into a blade and a scalpel handle. The blade is disposable, and the knife handles are not all sterilized by high pressure before use, and can be recycled after strict sterilization. The shape of the knife handle used at present is straight, and then the knife handle can be directly connected with a disposable blade for use.

When an operation is performed, tissues such as skin and muscle on the surface, normal tissues and pathological tissues in a body are cut, a traditional straight-handle scalpel is always used, the tissues on the surface are convenient, but sometimes, for some tissues hidden in a human body, a straight-handle scalpel handle is a great encumbrance in the operation process sometimes in the cutting operation. The lesion site is determined from examination before the operation, but it is possible to find a deviation of the lesion tissue after cutting the tissue at the time of the operation, in which case it may be necessary to enlarge the operation incision in order to sufficiently expose the operation field. A convenient surgical instrument is needed for such special cases, which can reduce both the risk of surgery and the time of surgery for the surgeon.

Disclosure of Invention

The present invention is directed to a medical scalpel to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a medical scalpel comprises a scalpel handle, wherein a piezoelectric body is arranged in the scalpel handle and fixed on the inner wall of the scalpel handle through a base, a push rod is arranged on the upper portion of the piezoelectric body, convex teeth are arranged at one end, far away from the piezoelectric body, of the push rod, wherein the piezoelectric body is composed of a first piezoelectric sheet, a second piezoelectric sheet and a third piezoelectric sheet which are vertically arranged side by side in sequence, a first power connection part is arranged in the middle of the second piezoelectric patch, a second power connection part is arranged on the first piezoelectric patch and the second piezoelectric patch close to the base, the first power connection part is connected with a double-pole double-throw switch on the left side of the piezoelectric body through a lead, the double-pole double-throw switch is connected with one pole of a power supply arranged at the left end of the knife handle through a lead, the second power connection part is connected with the other pole of the power supply through a wire, a rotating gear is arranged below the convex teeth and meshed with the convex teeth, and a rotating column is arranged on the right side of the rotating gear;

the right side of the rotating column is provided with a second knife handle, the rotating column in the second knife handle is fixedly connected with the second knife handle, one end, far away from the rotating column, of the second knife handle is provided with a blade, one end part, not a knife tip, of the blade is inserted into the second knife handle, a semiconductor refrigerating piece is arranged at the position, close to the blade, in the second knife handle, and the semiconductor refrigerating piece is connected with a semiconductor double-pole double-throw switch through a wire.

Furthermore, half of the rotating column is arranged in the knife handle, the other half of the rotating column is arranged in the second knife handle, and gear teeth meshed with the rotating gear are arranged on the rotating column in the knife handle.

Furthermore, a blade clamping column is arranged on the right side of the second hilt, and a blade clamping groove is formed in the position, corresponding to the blade clamping column, of the blade.

Furthermore, one end of the knife handle, which is far away from the second knife handle, is provided with a concave hole.

Furthermore, a cold-hot switch and a steering switch are arranged in the concave hole.

Compared with the prior art, the invention has the beneficial effects that: the utility model divides the traditional scalpel into two parts, and drives to turn by the piezoelectric motor, when the power is switched on, the piezoelectric body generates elliptical motion under the effect of voltage, the rotating gear is rotated by the push rod to obtain the rotating motion, the rotating gear drives the meshed rotary column to rotate, the bendable scalpel handle can not only cut the tissue on the surface, but also can be more convenient when cutting some tissues hidden in the human body, thereby increasing the angle of surgical excision, the excision can be carried out on the excision surface with poor angle at different positions, simultaneously, because the piezoelectric motor is used for driving to turn, the tiny and accurate rotation can be carried out to provide the best angle of the excision, simultaneously, the function of converting the current direction of the double-pole double-throw switch can lead the piezoelectric body to carry out the elliptical motion in the opposite direction, the rotating gear is driven to rotate in the opposite direction, and the closing and the perpendicularity of the scalpel handle are, be equipped with the semiconductor refrigeration piece in the hilt of buckling simultaneously, the semiconductor refrigeration piece passes through double-pole double-throw switch and is connected with the power, can refrigerate the blade, to the demand of cold sword when satisfying partial operation, when double-pole double-throw switch carries out the conversion of current direction simultaneously, the direction change of electric current makes the cold and hot end conversion of semiconductor refrigeration piece, and then realize the intensification to the blade, the cold and hot conversion function of blade has more the flexibility to the demand of temperature when making the operation, be equipped with the card post of joint blade on the hilt simultaneously, conveniently carry out the blade and change, reduce the stock and reserve volume of scalpel when operating, increase the clean and tidy operating table.

Drawings

FIG. 1 is a schematic view of a medical scalpel;

FIG. 2 is a side view of the medical scalpel;

FIG. 3 is a schematic view of a piezoelectric body in the medical scalpel;

FIG. 4 is a schematic view of a cavity in a medical scalpel.

In the figure: 1. a hilt; 2. a power source; 3. a double pole double throw switch; 3. 1, a semiconductor double-pole double-throw switch; a switch; 4. a piezoelectric body; 5. a push rod; 6. a convex tooth; 7. a rotating gear; 8. a spin column; 9. a second tool holder; 10. a blade; 11. a base; 12. a blade clamping groove; 13. the blade is clamped with the column; 14. a semiconductor refrigeration sheet; 15. a first piezoelectric sheet; 16. a second piezoelectric sheet; 17. a first power connection; 18. a third piezoelectric sheet; 19. a second power connection; 20. a concave hole; 21. a cold and hot switch; 22. a steering switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a medical scalpel comprises a hilt 1, wherein a piezoelectric body 4 is arranged in the hilt 1, the piezoelectric body 4 is fixed on the inner wall of the hilt 1 through a base 11, a push rod 5 is arranged on the upper portion of the piezoelectric body 4, a convex tooth 6 is arranged at one end, far away from the piezoelectric body 4, of the push rod 5, the piezoelectric body 4 is composed of a first piezoelectric sheet 15, a second piezoelectric sheet 16 and a third piezoelectric sheet 18 which are vertically arranged side by side in sequence, a first power connection part 17 is arranged in the middle of the second piezoelectric sheet 16, a second power connection part 19 is arranged on the positions, close to the base 11, of the first piezoelectric sheet 15 and the second piezoelectric sheet 16, the first power connection part 17 is connected with a double-pole double-throw switch 3 on the left side of the piezoelectric body 4 through a lead, the double-pole double-throw switch 3 is connected with one pole of a power supply 2 arranged at the left end of the hilt 1 through a lead, the second power connection part 19 is, the rotary gear 7 is meshed with the convex teeth 6, the right side of the rotary gear 7 is provided with a rotary column 8, the right side of the rotary column 8 is provided with a second hilt 9, half of the rotary column 8 is arranged in the hilt 1, the other half of the rotary column 8 is arranged in the second hilt 9, gear teeth meshed with the rotary gear 7 are arranged on the rotary column 8 positioned on the inner half side of the hilt 1, the half-side rotary column 8 in the second hilt 9 is fixedly connected with the second hilt 9, one end, far away from the rotary column 8, of the second hilt 9 is provided with a blade 10, one non-tool nose end part of the blade 10 is inserted into the second hilt 9, a semiconductor refrigerating piece 14 is arranged at a position close to the blade 10 in the second hilt 9, the semiconductor refrigerating piece 14 is connected with a semiconductor double-pole double-throw switch 3-1 through a conducting wire, the right side of the second hilt 9 is provided with a blade clamping column 13, and a blade clamping groove 12 is arranged on, wherein, one end of the knife handle 1 far away from the second knife handle 9 is provided with a concave hole 20, and a cold-hot switch 21 and a steering switch 22 are arranged in the concave hole 20.

The working principle of the invention is as follows: the invention provides a medical scalpel, which has ingenious and reasonable structure, divides the traditional scalpel into two parts, and drives the scalpel to turn by a piezoelectric motor, when a power supply is switched on, a piezoelectric body generates elliptical motion under the action of voltage, a push rod enables a rotating gear to rotate to obtain rotary motion, the rotating gear pushes a meshed rotary column to rotate, a bendable scalpel handle can cut tissues on the surface and can also be more convenient to cut certain tissues hidden in a human body, thereby increasing the surgical excision angle, excising a resection surface with poor angle at different positions, simultaneously, the piezoelectric motor is used for driving the scalpel to turn, micro and accurate rotation can be carried out, the optimal folding angle can be provided, and simultaneously, the function of converting the current direction of a double-pole double-throw switch can enable the piezoelectric body to carry out the elliptical motion in the opposite direction, and push the rotating gear to rotate in the opposite direction, and then realize the closed of hilt perpendicularly, be equipped with the semiconductor refrigeration piece in the hilt of buckling simultaneously, the semiconductor refrigeration piece passes through double-pole double-throw switch and is connected with the power, can refrigerate the blade, the demand to cold sword when satisfying partial operation, when double-pole double-throw switch carries out the conversion of current direction simultaneously, the direction change of electric current makes the cold and hot end conversion of semiconductor refrigeration piece, and then realize the intensification to the blade, the cold and hot conversion function of blade makes the demand of temperature have more the flexibility when operating, be equipped with the card post of joint blade on the hilt simultaneously, conveniently carry out the blade and change, the stock and reserve volume of scalpel when reducing the operation, increase the clean and tidy of operating table.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A medical scalpel comprises a handle (1), and is characterized in that: the knife handle (1) is internally provided with a piezoelectric body (4), the piezoelectric body (4) is fixed on the inner wall of the knife handle (1) through a base (11), the upper part of the piezoelectric body (4) is provided with a push rod (5), one end, far away from the piezoelectric body (4), of the push rod (5) is provided with a convex tooth (6), the piezoelectric body (4) is a first piezoelectric sheet (15), a second piezoelectric sheet (16) and a third piezoelectric sheet (18) are sequentially arranged side by side and vertically, the middle part of the second piezoelectric sheet (16) is provided with a first power connection part (17), the positions, close to the base (11), of the first piezoelectric sheet (15) and the second piezoelectric sheet (16) are provided with a second power connection part (19), the first power connection part (17) is connected with a double-pole double-throw switch (3) on the left side of the piezoelectric body (4) through a lead, the double-pole double-throw switch (3) is connected with one pole of a power supply (2) arranged on the, the second power connection part (19) is connected with the other pole of the power supply (2) through a lead, a rotating gear (7) is arranged below the convex tooth (6), the rotating gear (7) is meshed with the convex tooth (6), and a rotating column (8) is arranged on the right side of the rotating gear (7);

the utility model discloses a semiconductor refrigeration piece, including revolving column (8), second hilt (9) internal rotation column (8) and second hilt (9) fixed connection, revolving column (8) one end is kept away from in second hilt (9) and is equipped with blade (10), non-knife tip one end portion of blade (10) inserts in second hilt (9), hug closely blade (10) department in second hilt (9) and be equipped with semiconductor refrigeration piece (14), semiconductor refrigeration piece (14) are connected with semiconductor double-pole double-throw switch (3-1) through the wire.

2. The medical scalpel of claim 1, wherein: and one half of the rotating column (8) is arranged in the tool holder (1), the other half of the rotating column is arranged in the second tool holder (9), and gear teeth meshed with the rotating gear (7) are arranged on the rotating column (8) positioned on the inner half side of the tool holder (1).

3. The medical scalpel of claim 1, wherein: the right side of the second hilt (9) is provided with a blade clamping column (13), and a blade clamping groove (12) is formed in the position, corresponding to the blade clamping column (13), of the blade (10).

4. The medical scalpel of claim 1, wherein: wherein, a concave hole (20) is arranged at one end of the knife handle (1) far away from the second knife handle (9).

5. The medical scalpel of claim (4), wherein: a cold and hot switch (21) and a steering switch (22) are arranged in the concave hole (20).