A scalpel

Abstract

The present invention provides a scalpel, which includes: 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 set as an outlet end, and the other end is a handle end; one end of the blade body is installed at the outlet end of the handle body, and the other end of the blade body is a free end; the trigger is installed at the bent part of the handle; the transmission mechanism is installed between the handle and the trigger, and the whole transmission mechanism is arranged inside the handle. The jacket is sleeved on the free end of the blade body. The present invention has the characteristics of simple structure, light weight, low cost, and convenient use, and can be widely applied in the medical field.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical operations, and particularly to a scalpel. Background Art

[0002] With the development of the scientific and technological level and the improvement of people's living standards, minimally invasive medicine has become increasingly popular among doctors and patients due to its characteristics of less pain, small incisions, fine scars, less bleeding during surgery, and quick body recovery. In minimally invasive medical surgeries, ultrasonic surgical instruments are widely used. However, there are too many components in ultrasonic surgical instruments and their weight is relatively heavy, which easily causes a sense of fatigue in the doctor's hand during holding and use, and has a certain impact on the surgery.

[0003] It can be seen that in the prior art, surgical instruments for minimally invasive surgeries have problems such as complex structure, too heavy weight, inconvenient use, and high cost. Summary of the Invention

[0004] In view of this, the main object of the present invention is to provide a scalpel with a simple structure, light weight, low cost, and convenient use.

[0005] In order to achieve the above object, the technical solution proposed by the present invention is as follows:

[0006] 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;

[0007] The handle body is in the shape of a pistol with a hollow interior. One end of the handle body is set as an outlet end, and the other end is a handle end; one end of the blade body is horizontally installed at the outlet end of the handle body, and the other end of the blade body is a free end; the trigger is installed on the outside of the bent part of the handle body; the transmission mechanism is installed between the handle and the trigger, between the handle body and the blade body, and the whole transmission mechanism is arranged inside the handle. The jacket is sleeved on the free end of the blade body.

[0008] The wrench is in an arc L shape. The top end of the short side of the wrench is rotatably connected to a rotating shaft, the rotating shaft is fixed inside the bent part of the handle body, and the wrench is arranged outside the bent part of the handle body.

[0009] The transmission mechanism includes: a card, a first limit card slot, a first linkage rod, a rotor that moves slightly up or down in a second limit card slot, a second linkage rod that rotates slightly backward or forward, a second limit card slot, a linkage member, a push plate, a first spring, a second spring, a fixed sleeve, and a baffle; wherein, both the card and the first limit card slot are in an arc shape.

[0010] The first limit card slot is installed at the lower part inside the handle end of the handle body. One end of the card is fixed to 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 card slot.

[0011] The second limit card slot is vertically installed in the upper part of the handle end of the handle body along the handle body, and the rotor is rotatably installed in the second limit card slot, and the top end of the second limit card slot is fixedly connected to the lower end of the linkage member; one end of the first linkage rod is fixed to 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 to the second linkage rod; one end of the second linkage rod is sleeved on the shaft of the rotor, and the other end of the second linkage rod is rotatably fixed to the fixed sleeve, and the fixed sleeve is fixed above the first limit card slot on the handle body; the second linkage rod is installed in an inclined manner.

[0012] The linkage member is horizontally arranged in the upper part of the handle body; inside the handle body, a push plate is arranged at the front end of the linkage member, and the push plate is fixedly connected to the front side of the pull pin; a first spring is also arranged above the front part of the linkage member, the first spring is horizontally installed in the handle body, 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 member is fixedly connected to one end of the second spring, and the other end of the second spring is fixed to the baffle, and the baffle is fixed to the rear end inside the handle body.

[0013] The inclination angle θ of the second linkage rod is the angle at which the second linkage rod deviates from the vertical direction, and the magnitude of the inclination angle θ is: 10° to 40°.

[0014] In summary, the scalpel of the present invention is composed of a pistol-shaped handle body, a blade body, a trigger and a transmission mechanism. The transmission mechanism connects the handle body, the trigger and the blade body. The blade body is installed at the outlet end of the handle body, and the trigger is installed on the outside of the bent 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 blade body to move inward or outward into the handle body, thereby completing the surgical operation. It can be seen that the scalpel of the present invention has a simple structure, a light weight, a low cost and is convenient to use. Brief Description of the Drawings

[0015] Figure 1 is the overall composition structure schematic diagram of a scalpel body of the present invention.

[0016] Figure 2 is the enlarged structure schematic diagram of a scalpel jacket of the present invention. Detailed Description of the Invention

[0017] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0018] Figure 1 is the overall composition structure schematic diagram of a scalpel body of the present invention. Figure 2 is the enlarged structure schematic diagram of a scalpel jacket of the present invention. As Figure 1 、 Figure 2As shown in the figure, a scalpel according to the present invention includes: a scalpel body and a jacket 20; wherein, the scalpel body includes: a handle, a blade, a transmission mechanism, and a trigger; wherein,

[0019] The handle is in the shape of a pistol with a hollow interior. One end of the handle is set as the outlet end, and the other end is the handle end; one end of the blade is horizontally installed at the outlet end of the handle, and the other end of the blade is the free end; the trigger is installed on the outside of the bent part of the handle; the transmission mechanism is installed between the handle and the trigger, and between the handle and the blade, and the entire transmission mechanism is arranged inside the handle. The jacket 20 is sleeved on the free end of the blade.

[0020] In summary, a scalpel according to the present invention is composed of a pistol-shaped handle, a blade, a trigger and a transmission mechanism. The transmission mechanism connects the handle, the trigger and the blade. The blade is installed at the outlet end of the handle, and the trigger is installed on the outside of the bent part of the handle. When the trigger is pressed by hand, the trigger drives the transmission mechanism to move, and the transmission mechanism drives the blade to move inwards or outwards into the handle, thereby completing the surgical operation. It can be seen that the scalpel of the present invention has a simple structure, a relatively light weight, a low cost and is convenient to use.

[0021] In the present invention, the blade includes: an elastic clamp head 1, a tissue gasket 2, and a blade rod assembly 3; wherein, the blade rod assembly 3 includes an inner rod 17, an outer rod 18, and a push plate 16. The outer rod 18 is a hollow structure; the inner rod 17 is sleeved inside the outer rod 18. One end of the sleeved inner rod 17 and the outer rod 18 is fixedly inserted into the outlet end of the handle. One end of the inner rod 17 inserted into the outlet end of the handle is also fixedly connected with a push plate 16; the other end of the inner rod 17 is fixedly installed with an elastic clamp head 1 as the free end, and the other end of the outer rod 18 is fixedly installed with a tissue gasket 2 as the free end. The tissue gasket 2 is non-elastic, and the elastic clamp head 1 and the tissue gasket 2 correspondingly form a cutter.

[0022] In the present invention, the trigger includes: a rotating shaft 6 and a wrench 7; wherein, the wrench 7 is in 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 bent part of the handle, and the wrench 7 is arranged outside the bent part of the handle.

[0023] In the present invention, the transmission mechanism includes: a card 9, a first limit card slot 10, a first linkage rod 8, a rotor 11, a second linkage rod 12, a second limit card slot 13, a linkage member 15, a push plate 16, a first spring 5, a second spring 14, a fixed sleeve 19, and a baffle 21; wherein, both the card 9 and the first limit card slot 10 are in an arc shape.

[0024] The first limit card slot 10 is installed at the lower part inside the handle end of the handle. One end of the card 9 is fixed to the long side of the wrench 7, and the other end of the card 9 is the free end, and the free end of the card 9 is inserted into the first limit card slot 10.

[0025] The second limiting card slot 13 is vertically installed in the upper part of the handle end of the handle body along the handle body, the rotor 11 is rotatably installed in the second limiting card slot 13, and the top end of the second limiting card slot 13 is fixedly connected to the lower end of the linkage 15; one end of the first linkage rod 8 is fixed to 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 to 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 to the fixed sleeve 19, and the fixed sleeve 19 is fixed above the first limiting card slot 10 on the handle body; the second linkage rod 12 is installed in an inclined manner.

[0026] The linkage 15 is horizontally arranged in the upper part of the handle body; inside the handle body, a push plate 16 is arranged at the front end of the linkage 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 part of the linkage 15, the first spring 5 is horizontally installed 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 to the pull pin 4, and 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 other end of the second spring 14 is fixed to the baffle 21, and the baffle 21 is fixed to the rear end inside the handle body.

[0027] In practical applications, the linkage 15 and the push plate 16 can be an integral structure; the linkage 15 and the second limiting card slot 13 can also be an integral structure.

[0028] 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 magnitude of the inclination angle θ is 10° to 40°.

[0029] 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 15 is: wherein, l represents the length of the second linkage rod 12.

[0030] In the present invention, the collet 20 is sleeved on the free end of the tool body, specifically: the collet 20 is sleeved on one end of the clamping head 1 of the tool body; the collet 20 is a square hollow structure as a whole, and the hollow structure is in the shape of a funnel.

[0031] In the present invention, the first spring 5 plays a role in limiting the backward movement of the inner rod 17. In practical applications, the second linkage rod 12 is installed in an inclined manner.

[0032] In summary, when holding the scalpel of the present invention, pressing the wrench by hand, the wrench moves along the rotating shaft towards the handle, and pushes the card towards the first limit card slot. At the same time, the wrench conducts the backward thrust applied to the first linkage rod to the second limit card slot through the second linkage rod. The second limit card slot drives the moving linkage member to move backward, and the linkage member compresses the second spring and moves 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 head to move backward. At this time, the elastic clamp head forming the tool and the tissue gasket are correspondingly closed. In fact, when the second linkage rod conducts the backward thrust to the second limit card slot, the second linkage rod rotates backward at a small angle around the fixed sleeve, so that the rotor has a small upward movement process in the second limit card slot. Loosing the wrench, the wrench moves along the rotating shaft away from the handle and pulls the card out of the first limit card slot. At the same time, the wrench conducts the forward pulling force applied to the first linkage rod to the second limit card slot through the second linkage rod. The second limit card slot drives the moving linkage member to move forward, and the compressed second spring also provides a forward elastic force to the linkage member; the pull pin and the push plate further drive the elastic clamp head to move forward under the pushing action of the linkage member and the elastic force of the compressed first spring. At this time, the elastic clamp head forming the tool and the tissue gasket are correspondingly opened, and the tool is reset. In fact, when the second linkage rod conducts the forward pulling force to the second limit card slot, the second linkage rod rotates forward at a small angle around the fixed sleeve, so that the rotor has a small downward movement process in the second limit card slot. It can be seen that the structural compositions 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. Moreover, except that the tool meets the medical requirements, the rest of the components are made of ordinary materials, so its cost is low and the weight is light; 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 tool part to ensure the hygiene and safety of the tool.

[0033] In summary, the above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

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 set as an outlet end, and the other end is a handle end; one end of the blade body is horizontally installed at the outlet end of the handle body, and the other end of the blade body is a free end; the trigger is installed on the outer side of the bent part of the handle body; the transmission mechanism is installed between the handle and the trigger, between the handle body and the blade body, and the whole transmission mechanism is arranged inside the handle; the jacket is sleeved on the free end of the blade body; the blade body comprises: an elastic clamp head, a tissue gasket, and a blade rod assembly; wherein, the blade rod assembly comprises an inner rod, an outer rod, and a pull pin, and the outer rod is a hollow structure; the inner rod is sleeved inside the outer rod, and one end of the sleeved inner rod and outer rod is fixedly inserted into the outlet end of the handle body. 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 fixedly installed with an elastic clamp head as a free end, the other end of the outer rod is fixedly installed with a tissue gasket as a free end, the tissue gasket is non-elastic, and the elastic clamp head and the tissue gasket correspondingly form a cutter; the trigger comprises: a rotating shaft and a wrench; wherein, the wrench is in an arc L shape, the top end of the short side of the wrench is rotatably connected to the rotating shaft, the rotating shaft is fixed inside the bent part of the handle body, and the wrench is arranged outside the bent part of the handle body; the transmission mechanism comprises: a card, a first limit card slot, a first linkage rod, a rotor that slightly moves up or down in a second limit card slot, a second linkage rod that rotates backward or forward at a small angle, a second limit card slot, a linkage member, a push plate, a first spring, a second spring, a fixed sleeve, and a baffle; wherein, both the card and the first limit card slot are in an arc shape; the first limit card slot is installed at the lower part inside the handle end of the handle body, one end of the card is fixed to 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 card slot; the second limit card slot is vertically installed along the handle end of the handle body at the upper part inside the handle body, the rotor is rotatably installed in the second limit card slot, and the top end of the second limit card slot is fixedly connected to the lower end of the linkage member; one end of the first linkage rod is fixed to 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 to the second linkage rod; one end of the second linkage rod is sleeved on the shaft of the rotor, and the other end of the second linkage rod is rotatably fixed to the fixed sleeve, and the fixed sleeve is fixed above the first limit card slot on the handle of the handle body; the second linkage rod is installed in an inclined manner; the linkage member is horizontally arranged at the upper part inside the handle body; inside the handle body, a push plate is arranged at the front end of the linkage member, and the push plate is fixedly connected to the front side of the pull pin; a first spring is also arranged above the front part of the linkage member, the first spring is horizontally installed inside the handle body, 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 member is fixedly connected to one end of the second spring, and the other end of the second spring is fixed to the baffle, and the baffle is fixed to the rear end inside the handle body; the inclination angle θ of the second linkage rod is the angle at which the second linkage rod deviates from the vertical direction, and the magnitude of the inclination angle θ is: 10° to 40°.

2. A scalpel according to claim 1, characterized in that, The relationship between the inclination angle θ of the second linkage rod and the moving distance d of the linkage is: where l represents the length of the second linkage rod.

3. A scalpel according to claim 1, characterized in that, the jacket is sleeved on the free end of the blade body, specifically: the jacket is sleeved on the forceps head end of the blade 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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