CN212140538U - a scalpel - Google Patents

Abstract

The utility model provides a surgical knife includes: a scalpel body and a jacket; wherein, scalpel body includes: the handle body, the cutter body, the transmission mechanism and the trigger; the handle body is in a pistol shape with a hollow interior, one end of the handle body is an outlet end, and the other end of the handle body is a handle end; one end of the cutter body is arranged at the outlet end of the handle body, and the other end of the cutter body is a free end; the trigger is arranged at the bending part of the handle; the transmission mechanism is arranged between the handle and the trigger, and the transmission mechanism is integrally arranged in the handle. The jacket is sleeved at the free end of the cutter body. The utility model has the characteristics of simple structure, weight are light, with low costs, convenient to use etc, but wide application in medical field.

Description

a scalpel

technical field

The utility model relates to the technical field of surgery, in particular to a scalpel.

Background technique

With the development of science and technology and the improvement of people's living standards, minimally invasive medical treatment is more and more popular among doctors and patients due to its characteristics of less pain, small wound, small scar, less blood loss during surgery, and quicker recovery. welcome. Ultrasound surgical instruments are widely used in minimally invasive medical operations. However, there are too many parts and components in ultrasonic surgical instruments, and their weight is relatively heavy, which can easily cause the doctor's hand fatigue during the process of holding and using, which will have a certain impact on the operation.

It can be seen that, in the prior art, surgical instruments used for minimally invasive surgery have the problems of complex structure, heavy weight, inconvenient use, and high cost.

SUMMARY OF THE INVENTION

In view of this, the main purpose of the present invention is to provide a scalpel with simple structure, light weight, low cost and convenient use.

In order to achieve the above-mentioned purpose, the technical scheme that the utility model proposes is:

A scalpel, comprising: a scalpel body and a jacket; wherein, the scalpel body includes: a handle body, a blade body, a transmission mechanism, and a trigger;

The handle body is in the shape of a pistol with a hollow interior. One end of the handle body is the outlet end and the other end is the handle end; Part of the outer side; the transmission mechanism is installed between the handle and the trigger, between the handle body and the knife body, and the transmission mechanism is integrally arranged inside the handle. The jacket is set on the free end of the cutter body;

The trigger comprises: a rotating shaft (6) and a wrench (7); wherein, the wrench (7) is an arc L shape, the top end of the short side of the wrench (7) is rotatably connected to the rotating shaft (6), and the rotating shaft (6) is fixed on the Inside the curved portion of the handle body, a wrench (7) is arranged outside the curved portion of the handle body.

The transmission mechanism comprises: a card (9), a first limit slot (10), a first linkage rod (8), a rotor (11), a second linkage rod (12), and a second limit slot (13) ), linkage (15), push plate (16), first spring (5), second spring (14), fixing sleeve (19), baffle plate (21); wherein the card (9), the first limit The card slots (10) are all arc-shaped;

The first limit card slot (10) is installed in the lower part of the handle end of the handle body, one end of the card (9) is fixed on the long side of the wrench (7), the other end of the card (9) is a free end, and The free end of the card (9) is inserted into the first limit card slot (10).

The second limit slot (13) is vertically installed on the inner upper part of the handle body along the handle end of the handle body, and the rotor (11) is rotatably installed in the second limit slot (13), And the top of the second limit slot (13) is fixedly connected with the lower end of the linkage (15); one end of the first linkage rod (8) is fixed on the upper part of one end of the card (9) on the long side of the wrench (7), the first linkage The other end of the rod (8) is fixed on the second linkage rod (12); one end of the second linkage rod (12) is sleeved on the shaft of the rotor (11), and the other end of the second linkage rod (12) is rotatably fixed on the shaft of the rotor (11). On the fixing sleeve (19), the fixing sleeve (19) is fixed above the first limit slot (10) on the handle of the handle body; the second linkage rod (12) is installed in an inclined manner.

The linkage member (15) is horizontally arranged in the upper part of the handle body; in the handle body, a push plate (16) is arranged at the front end of the linkage member (15), and the push plate (16) is fixedly connected to the front side of the pull pin (4); A first spring (5) is also arranged above the front of the piece (15), the first spring (5) is installed horizontally in the handle body, and one end of the first spring (5) is located on the side of the pull pin (4), but the first spring (5) One end of a spring (5) is not fixedly connected to the pull pin (4), the other end of the first spring (5) is fixed to the inside of the handle body; the rear end of the linkage (15) is fixedly connected to one end of the second spring (14), the second The other end of the spring (14) is fixed on the baffle plate (21), and the baffle plate (21) is fixed at the rear end of the handle body.

To sum up, the scalpel of the present utility model is composed of a pistol-shaped handle body, a knife body, a trigger and a transmission mechanism. The transmission mechanism is connected with the handle body, the trigger and the knife body. It is installed on the outside of the curved part of the handle body. When the trigger is pressed by hand, the trigger drives the transmission mechanism to move, and the transmission mechanism drives the knife body to move inward or outward in the handle body, thereby completing the surgical operation. It can be seen that the scalpel of the utility model has the advantages of simple structure, light weight, low cost and convenient use.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a scalpel body according to the present invention.

FIG. 2 is an enlarged structural schematic diagram of a surgical knife collet according to the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic diagram of the overall structure of a scalpel body according to the present invention. FIG. 2 is an enlarged structural schematic diagram of a surgical knife collet according to the present invention. As shown in Figures 1 and 2, a scalpel according to the present invention includes: a scalpel body and a jacket 20; wherein, the scalpel body includes: a handle body, a blade body, a transmission mechanism, and a trigger; wherein,

The handle body is in the shape of a pistol with a hollow interior. One end of the handle body is the outlet end and the other end is the handle end; Part of the outer side; the transmission mechanism is installed between the handle and the trigger, between the handle body and the knife body, and the transmission mechanism is integrally arranged inside the handle. The jacket 20 is set on the free end of the cutter body.

In a word, the scalpel of the utility model is composed of a pistol-shaped handle body, a knife body, a trigger and a transmission mechanism. The transmission mechanism is connected with the handle body, the trigger and the knife body. Outside the curved part of the handle body. When the trigger is pressed by hand, the trigger drives the transmission mechanism to move, and the transmission mechanism drives the knife body to move inward or outward in the handle body, thereby completing the surgical operation. It can be seen that the scalpel of the utility model has the advantages of simple structure, light weight, low cost and convenient use.

In the utility model, the cutter body includes: elastic forceps head 1, tissue spacer 2, cutter bar assembly 3; wherein, the cutter bar assembly 3 includes an inner rod 17, an outer rod 18, a push plate 16, and the outer rod 18 is hollow Structure; the inner rod 17 is sheathed inside the outer rod 18, one end of the inner rod 17 and the outer rod 18 after the sleeve is fixedly inserted into the outlet end of the handle body, and the inner rod 17 is inserted into one end of the outlet end of the handle body A push plate 16 is also fixedly connected; the other end of the inner rod 17 is fixedly installed with an elastic clamp head 1 as a free end, and the other end of the outer rod 18 is fixedly installed with a tissue gasket 2 as a free end, and the tissue gasket 2 is inelastic, The elastic forceps head 1 and the tissue spacer 2 correspond to form a cutter.

In the utility model, the trigger comprises: a rotating shaft 6 and a wrench 7; wherein, the wrench 7 is an arc L shape, the top end of the short side of the wrench 7 is rotatably connected to the rotating shaft 6, and the rotating shaft 6 is fixed inside the curved part of the handle body, The wrench 7 is arranged outside the curved portion of the handle body.

In the present invention, the transmission mechanism includes: a card 9, a first limit slot 10, a first linkage rod 8, a rotor 11, a second linkage rod 12, a second limit slot 13, a linkage 15, a pusher The plate 16 , the first spring 5 , the second spring 14 , the fixing sleeve 19 , and the baffle plate 21 ; wherein, the card 9 and the first limit slot 10 are all arc-shaped.

The first limit card slot 10 is installed in the lower part of the handle end of the handle body, one end of the card 9 is fixed on the long side of the wrench 7, the other end of the card 9 is a free end, and the free end of the card 9 is inserted into the first limit. in the card slot 10.

The second limit slot 13 is vertically installed in the upper part of the handle body along the handle end of the handle body, the rotor 11 is rotatably installed in the second limit slot 13, and the second limit clip The top end of the groove 13 is fixedly connected with the lower end of the linkage member 15; one end of the first linkage rod 8 is fixed on the upper part of one end of the card 9 on the long side of the wrench 7, and the other end of the first linkage rod 8 is fixed on the second linkage rod 12; the second linkage rod 12 One end is sleeved on the shaft of the rotor 11, the other end of the second linkage rod 12 is rotatably fixed on the fixed sleeve 19, and the fixed sleeve 19 is fixed above the first limit slot 10 on the handle of the handle body; the second linkage rod 12 Install in a tilted manner.

The linkage member 15 is horizontally arranged in the upper part of the handle body; in the handle body, the front end of the linkage member 15 is provided with a push plate 16, and the push plate 16 is fixedly connected to the front side of the pull pin 4; Spring 5, the first spring 5 is installed horizontally in the handle body, one end of the first spring 5 is located on one side of the pull pin 4, but one end of the first spring 5 is not fixedly connected with the pull pin 4, and the other end of the first spring 5 is connected to the handle The rear end of the linkage 15 is fixedly connected with one end of the second spring 14, the other end of the second spring 14 is fixed on the baffle plate 21, and the baffle plate 21 is fixed in the rear end of the handle body.

In practical applications, the linkage 15 and the push plate 16 may be an integral structure; the linkage 15 and the second limit slot 13 may also be an integral structure.

In the present invention, the inclination angle θ of the second linkage rod 12 is the angle at which the second linkage rod 12 deviates from the vertical direction, and the inclination angle θ is 10°˜40°.

其中，l表示所述第二联动杆12的长度。In the present invention, the relationship between the inclination angle θ of the second linkage rod 12 and the moving distance d of the linkage member 15 is:

Wherein, l represents the length of the second linkage rod 12 .

In the utility model, the jacket 20 is fitted over the free end of the cutter body, specifically: the jacket 20 is fitted over one end of the plier head 1 of the cutter body; the jacket 20 has a square hollow structure as a whole, and the hollow structure is in the shape of a funnel.

In the present invention, the first spring 5 plays a limiting role on the backward movement of the inner rod 17 . In practical application, the second linkage rod 12 is installed obliquely.

To sum up, when holding the scalpel of the present utility model, press the wrench by hand, the wrench moves along the axis of rotation close to the handle, and pushes the card to move into the first limit slot, at the same time, the wrench will be applied to the first The backward thrust on the linkage rod is transmitted to the second limit slot through the second linkage rod, the second limit slot drives the driving linkage to move backward, and the linkage compresses the second spring to move backward; the linkage of the backward movement The piece drives the pull pin and the push plate to move backward, and compresses the first spring; the push plate further drives the elastic clamp head to move backward, at this time, the elastic clamp head and the tissue gasket are correspondingly closed. In fact, when the second linkage rod transmits a backward thrust to the second limit slot, the second linkage rod will rotate backward at a slight angle around the fixing sleeve, so that the rotor is in the second limit slot There is a slight upward movement process. Loosen the wrench, the wrench moves away from the handle along the axis of rotation, and pulls the card to move out of the first limit slot. Two limit slots, the second limit slot drives the driving linkage to move forward, and the compressed second spring also provides a forward elastic force to the linkage; the pushing action of the pull pin and the push plate on the linkage and Under the action of the elastic force of the compressed first spring, the elastic pliers head is further driven to move forward. At this time, the elastic pliers head and the tissue spacer forming the cutter are correspondingly opened, and the cutter is reset. In fact, when the second linkage rod transmits a forward pulling force to the second limit slot, the second linkage rod will rotate forward at a slight angle around the fixing sleeve, so that the rotor is in the second limit slot There is a slight downward movement process. It can be seen that the components of the pistol-shaped handle body, the blade body, the trigger and the transmission mechanism in the scalpel of the present invention are relatively simple, and, except that the tool meets the medical requirements, the other components are made of ordinary It is made of material, so its cost is lower and its weight is lighter; furthermore, the scalpel of the present invention is also convenient to use. In addition, when the surgical knife of the present invention is in a non-working state, a jacket is used to cover the knife part, so as to ensure the hygiene and safety of the knife.

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. A scalpel, characterized in that the scalpel comprises: a scalpel body and a jacket (20); wherein, the scalpel body comprises: a handle body, a blade body, a transmission mechanism, and a trigger; The handle body is in the shape of a pistol with a hollow interior. One end of the handle body is the outlet end and the other end is the handle end; Part of the outer side; the transmission mechanism is installed between the handle and the trigger, between the handle body and the knife body, and the transmission mechanism is integrally arranged inside the handle; The jacket (20) is fitted on the free end of the cutter body; The trigger comprises: a rotating shaft (6) and a wrench (7); wherein, the wrench (7) is arc L-shaped, the top end of the short side of the wrench (7) is rotatably connected to the rotating shaft (6), and the rotating shaft (6) is fixed to the Inside the curved portion of the handle body, a wrench (7) is arranged on the outside of the curved portion of the handle body; The transmission mechanism comprises: a card (9), a first limit slot (10), a first linkage rod (8), a rotor (11), a second linkage rod (12), and a second limit slot (13) ), linkage (15), push plate (16), first spring (5), second spring (14), fixing sleeve (19), baffle plate (21); wherein the card (9), the first limit The card slots (10) are all arc-shaped; The first limit card slot (10) is installed in the lower part of the handle end of the handle body, one end of the card (9) is fixed on the long side of the wrench (7), the other end of the card (9) is a free end, and The free end of the card (9) is inserted into the first limit card slot (10); The second limit slot (13) is vertically installed on the inner upper part of the handle body along the handle end of the handle body, and the rotor (11) is rotatably installed in the second limit slot (13), And the top of the second limit slot (13) is fixedly connected with the lower end of the linkage (15); one end of the first linkage rod (8) is fixed on the upper part of one end of the card (9) on the long side of the wrench (7), and the first linkage The other end of the rod (8) is fixed on the second linkage rod (12); one end of the second linkage rod (12) is sleeved on the shaft of the rotor (11), and the other end of the second linkage rod (12) is rotatably fixed on the shaft of the rotor (11). on the fixing sleeve (19), the fixing sleeve (19) is fixed above the first limit slot (10) on the handle of the handle body; the second linkage rod (12) is installed in an inclined manner; The linkage member (15) is horizontally arranged in the upper part of the handle body; in the handle body, a push plate (16) is arranged at the front end of the linkage member (15), and the push plate (16) is fixedly connected to the front side of the pull pin (4); A first spring (5) is also arranged above the front of the piece (15), the first spring (5) is installed horizontally in the handle body, and one end of the first spring (5) is located on the side of the pull pin (4), but the first spring (5) One end of a spring (5) is not fixedly connected to the pull pin (4), the other end of the first spring (5) is fixed to the inside of the handle body; the rear end of the linkage (15) is fixedly connected to one end of the second spring (14), and the second The other end of the spring (14) is fixed on the baffle plate (21), and the baffle plate (21) is fixed at the rear end of the handle body. 2 . The scalpel according to claim 1 , wherein the knife body comprises: an elastic forceps head ( 1 ), a tissue spacer ( 2 ), and a knife bar assembly ( 3 ); wherein, the knife bar assembly (3) Including an inner rod (17), an outer rod (18), a pull pin (4), and the outer rod (18) is a hollow structure; The inner rod (17) is sheathed inside the outer rod (18), the inner rod (17) and one end of the outer rod (18) after being sheathed are fixedly inserted into the outlet end of the handle body, and the inner rod (17) is inserted and connected A pull pin (4) is also fixedly connected to one end of the outlet end of the handle body; the other end of the inner rod (17) is fixedly installed with an elastic clamp head (1) as a free end, and the other end of the outer rod (18) is fixed as a free end A tissue spacer (2) is installed, the tissue spacer (2) is inelastic, and the elastic forceps head (1) and the tissue spacer (2) correspond to form a cutter. 3. A scalpel according to claim 2, wherein the relationship between the inclination angle θ of the second linkage rod (12) and the moving distance d of the linkage member (15) is:

Wherein, l represents the length of the second linkage rod (12). 4. A scalpel according to claim 2 or 3, characterized in that the jacket (20) is sleeved on the free end of the knife body, specifically: the jacket (20) is sleeved on the pliers (20) of the knife body. 1) one end; The jacket (20) has a square hollow structure as a whole, and the hollow structure is in the shape of a funnel.

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