CN111053597A - a scalpel - Google Patents

Abstract

The present invention provides a surgical knife comprising: 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 invention has the characteristics of simple structure, light weight, low cost, convenient use and the like, and can be widely applied to the medical field.

Description

a scalpel

technical field

The invention 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 object, the technical scheme proposed by the present invention 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.

To sum up, the scalpel of the present invention is composed of a pistol-shaped handle body, a knife body, a trigger and a transmission mechanism. The transmission mechanism connects the handle body, the trigger and the knife body. It is arranged 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 present invention is simple in structure, light in weight, low in cost and convenient to use.

Description of drawings

FIG. 1 is a main cross-sectional view of the first overall structure of the scalpel body according to the present invention.

Fig. 2 is a main cross-sectional view of the second overall structure of the scalpel body according to the present invention.

FIG. 3 is a schematic cross-sectional view of an enlarged structure of a scalpel collet according to the present invention.

Detailed ways

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

FIG. 1 is a main cross-sectional view of the first overall structure of the scalpel body according to the present invention. Fig. 2 is a main cross-sectional view of the second overall structure of the scalpel body according to the present invention. FIG. 3 is a schematic cross-sectional view of an enlarged structure of a scalpel collet according to the present invention. As shown in Figures 1, 2, and 3, 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, a scalpel according to the present invention 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 of body curvature. 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 present invention is simple in structure, light in weight, low in cost and convenient to use.

In the present invention, the cutter body includes an elastic forceps head 1, a tissue spacer 2, and a cutter bar assembly 3; wherein, the cutter bar assembly 3 includes an inner rod 17, an outer rod 18, and a pull pin 4, and the outer rod 18 is a 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 the outlet end of the handle body. A pull pin 4 is 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 and elastic The forceps head 1 and the tissue spacer 2 correspond to form a tool.

In the present invention, the trigger includes: 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, the rotating shaft 6 is fixed inside the curved part of the handle body, and the wrench 7 is arranged on the outside of the curved portion of the handle body.

As shown in FIG. 1 of the present invention, the transmission mechanism includes: a card 9, a first limit slot 10, a first linkage rod 8, a gear 11, a second linkage rod 12, a second limit slot 13, a linkage piece 15. The push plate 16, the first spring 5, the second spring 14, and the baffle 19; wherein, the card 9 and the first limit slot 10 are all arc-shaped, and the inner side of the second limit slot 13 is provided with a The first limit 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 inside a limit slot 10 . The second limit slot 13 is vertically installed on the inner and upper part of the handle body along the handle end of the handle body. The second limit slot 13 is provided with teeth close to the inner side of the wrench 7, and the gear 11 is rotatably installed. In the second limit slot 13, and the gear 11 meshes with the teeth in the second limit slot 13; 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 side of the first linkage rod 8 is fixed. One end of the second linkage rod 12 is fixed on the shaft of the gear 11 ; 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 19, and the baffle plate 19 is fixed in the rear end of the handle body.

As shown in FIG. 2 of the present invention, the transmission mechanism includes: a card 9, a first limit slot 10, a first linkage rod 8, a rotor 21, a second linkage rod 12, a third limit slot 23, and a linkage 15. The push plate 16, the first spring 5, the second spring 14, and the baffle plate 19; wherein, the card 9 and the first limit slot 10 are all arc-shaped; the first limit slot 10 is installed in the 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 slot 10 . The third limit slot 23 is vertically installed in the upper part of the handle body along the handle end of the handle body, and the rotor 21 is rotatably installed in the third limit slot 23; one end of the first linkage rod 8 Fixed on the upper part of one end of the card 9 on the long side of the wrench 7, the other end of the first linkage rod 8 is sleeved on the shaft of the rotor 21; one end of the second linkage rod 12 is also sleeved on the shaft of the rotor 21, and the other end of the second linkage rod 12 is sleeved. One end is fixed to the middle and rear part of the linkage member 15 . 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 19, and the baffle plate 19 is fixed in the rear end of the handle body.

In practical applications, the linkage member 15 and the push plate 16 may be an integral structure.

In the present invention, 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 for 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 invention, 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 pushes the first linkage rod to drive the The gear meshes and moves from bottom to top along the second limit slot, or the wrench pushes the first linkage rod to drive the rotor to move from bottom to top along the third limit slot; the upward moving gear or rotor simultaneously pushes the second The linkage rod moves backward, and the second linkage rod further drives the linkage member to compress the second spring to move backward; the moving linkage member drives the pull pin and the push plate to move backward, and compresses the first spring; the push plate further drives the elastic clamp The head moves backward, and at this time, the elastic forceps head that constitutes the cutter is closed correspondingly to the tissue spacer. 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; at the same time, the wrench pulls the first linkage rod to drive the gear to mesh along the second limit slot from top to bottom Move, or, the wrench pulls the first linkage rod to drive the rotor to move from top to bottom along the third limit slot; the downward moving gear or rotor simultaneously pushes the second linkage rod to move forward, and the linkage is in the second linkage. The pulling action of the rod and the elastic force of the second spring move forward; the pull pin and the push plate further drive the elastic clamp head to move forward under the pushing action of the linkage and the elastic force of the first spring. At this time, the elasticity of the tool is formed. The forceps head is opened correspondingly to the tissue spacer, and the tool is reset. 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 materials. Therefore, the cost is lower and the weight is lighter; furthermore, the scalpel of the present invention is also convenient to use. In addition, when the scalpel of the present invention is in a non-working state, a jacket is used to cover the cutter part, so as to ensure the hygiene and safety of the cutter.

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 within the protection scope of the present invention.

Claims (6)

1. A scalpel, characterized in that the scalpel comprises: a scalpel body and a jacket; 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 is set on the free end of the cutter body. 2 . The scalpel according to claim 1 , wherein the knife body comprises: an elastic forceps head, a tissue spacer, and a knife rod assembly; wherein, the knife rod assembly includes an inner rod, an outer rod, and a pull pin , the outer rod is a hollow structure; The inner rod is sheathed inside the outer rod, one end of the sheathed inner rod and the outer rod is fixedly inserted into the outlet end of the handle body, and one end of the inner rod inserted into the outlet end of the handle body is also fixedly connected with a pull pin; The other end of the inner rod is used as a free end to be fixedly equipped with an elastic clamp head, and the other end of the outer rod is used as a free end to be fixedly equipped with a tissue gasket. 3. A scalpel according to claim 2, wherein the trigger comprises: a rotating shaft and a wrench; wherein, The wrench is arc L-shaped, the top end of the short side of the wrench is rotatably connected to the rotating shaft, the rotating shaft is fixed inside the curved part of the handle body, and the wrench is arranged outside the curved part of the handle body. 4. The scalpel according to claim 3, wherein the transmission mechanism comprises: a card, a first limit slot, a first linkage rod, a gear, a second linkage rod, and a second limit card a slot, a linkage, a push plate, a first spring, a second spring, and a baffle; wherein, the card and the first limit slot are all arc-shaped, and one side of the second limit slot is provided with teeth; The first limit slot is installed in the lower part of the handle end of the handle body, one end of the card is fixed on the long side of the wrench, the other end of the card is a free end, and the free end of the card is inserted into the first limit slot Inside; The second limit slot is vertically installed on the inner and upper part of the handle body along the handle end of the handle body, the second limit slot is provided with teeth close to the inner side of the wrench, and the gear is rotatably installed on the first In the second limit slot, and the gear meshes with the meshing teeth in the second limit slot; one end of the first linkage rod is fixed on the upper part of one end of the card on the long side of the wrench, and the other end of the first linkage rod is fixed on the shaft of the gear ; One end of the second linkage rod is also fixed on the shaft of the gear, and the other end of the second linkage rod is fixed on the middle and rear part of the linkage; The linkage is horizontally arranged in the upper part of the handle body; in the handle body, the front end of the linkage is provided with a push plate, and the push plate is fixedly connected to the front side of the pull pin; a first spring is also arranged above the front of the linkage, and the first spring The handle body is installed horizontally, and one end of the first spring is located on one side of the pull pin, but one end of the first spring is not fixedly connected to the pull pin, and the other end of the first spring is fixed to the inside of the handle body; the rear end of the linkage is connected to one end of the second spring Fixed connection, the other end of the second spring is fixed on the baffle plate, and the baffle plate is fixed on the rear end of the handle body. 5 . The scalpel according to claim 3 , wherein the transmission mechanism comprises: a card, a first limit slot, a first linkage rod, a rotor, a second linkage rod, and a third limit card. 6 . a slot, a linkage, a push plate, a first spring, a second spring, and a baffle; wherein, the card and the first limit card slot are all arc-shaped; The first limit slot is installed in the lower part of the handle end of the handle body, one end of the card is fixed on the long side of the wrench, the other end of the card is a free end, and the free end of the card is inserted into the first limit slot Inside; The third limit slot is vertically installed on the inner and upper part of the handle body along the handle end of the handle body, the second limit slot is provided with teeth close to the inner side of the wrench, and the rotor is rotatably installed on the first one end of the first linkage rod is fixed on the upper part of one end of the card on the long side of the wrench, the other end of the first linkage rod is sleeved on the shaft of the rotor; one end of the second linkage rod is also sleeved on the shaft of the rotor , the other end of the second linkage rod is fixed on the middle and rear part of the linkage; The linkage is horizontally arranged in the upper part of the handle body; in the handle body, the front end of the linkage is provided with a push plate, and the push plate is fixedly connected to the front side of the pull pin; a first spring is also arranged above the front of the linkage, and the first spring The handle body is installed horizontally, and one end of the first spring is located on one side of the pull pin, but one end of the first spring is not fixedly connected to the pull pin, and the other end of the first spring is fixed to the inside of the handle body; the rear end of the linkage is connected to one end of the second spring Fixed connection, the other end of the second spring is fixed on the baffle plate, and the baffle plate is fixed on the rear end of the handle body. 6. A scalpel according to claim 2, 3, 4 or 5, characterized in that the jacket is sleeved on the free end of the knife body, specifically: the jacket is sleeved on one end of the forceps head of the knife body; The jacket is a square hollow structure as a whole, and the hollow structure is in the shape of a funnel.

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