Surgical electrotome with suction function

Abstract

A surgical electrotome with a suction function comprises a holding part and a knife body which is arranged at the front end of the holding part and extends forwards, a suction cavity is formed in the knife body, and the suction cavity comprises a suction part with the front end close to the head of the knife body, a cavity part in the middle and a connecting part with the rear end in sealed connection with the knife body. The suction part surrounds the periphery of the cutter body and forms an annular open structure, and the suction cavity is connected with a negative pressure device. The suction cavity is formed in the scalpel body, smog generated in an operation is sucked under the condition that the view field and operation of a doctor are not affected, the working efficiency of the doctor is improved, meanwhile, the suction cavity can move front and back on the scalpel body, a drainage channel is formed in the lower portion of the suction cavity, and the suction cavity can be used for sucking smog. According to the surgical scalpel, the blood generated at the surgical site in the surgery can be directly sucked, the surgical efficiency is further improved, meanwhile, the suction cavity formed in the scalpel body can prevent the scalpel body from touching other skins to cause injuries, and a certain protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of medical accessories, in particular to a surgical electric knife with a suction function. Background Art

[0002] Electric knives are widely used in modern surgical operations. The basic principle is to use the electric current between the tip of the electric knife and the tissue to generate high temperature, thereby performing cutting and stopping bleeding. Compared with traditional scalpels, it greatly reduces intraoperative bleeding and significantly increases the speed of surgery. In actual use, the high temperature of the electric knife will produce a large amount of smoke. A large number of studies have shown that this smoke contains a large amount of harmful substances and even live pathogens, which seriously pollute the operating room environment and endanger the health of people in the operating room.

[0003] The existing application number is 202021365676.8, which is an attachment for a surgical electrosurgical unit with a smoking tube and a smoking-type electrosurgical unit. The attachment is installed on the blade of the electrosurgical unit, and the smoking tube is clamped on the electrosurgical unit to smoke. Since the attachment and the smoking tube are attached to the blade, the volume of the electrosurgical unit is greatly increased, which can easily affect the doctor's operation. At the same time, the smoking point of the smoking tube is located near the blade head of the electrosurgical unit. At the same time, the smoking tube has a certain volume, which will hinder the doctor's field of vision and cause the doctor to adjust the angle of the smoking tube, which will affect the efficiency of the operation. Additional devices are needed to clean the blood accumulated in the surgical site, further reducing the efficiency of the operation. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and designs a surgical electric knife with a suction function, which is convenient for doctors to operate and improves the surgical efficiency.

[0005] The utility model adopts a technical solution to solve the technical problem: the surgical electric knife with suction function comprises a newspaper holding part, a knife body which is arranged at the front end of the holding part and extends forward, a suction cavity is arranged on the knife body, the suction cavity comprises a suction part at the front end close to the head of the knife body, a cavity part in the middle part and a connection part which is sealed and connected with the knife body at the rear end, the suction does not surround the periphery of the knife body and forms an annular open structure, and a negative pressure device is connected to the suction cavity.

[0006] For further improvement, the negative pressure device includes a negative pressure tube arranged at the tail of the suction chamber and interconnected with the suction chamber, and a negative pressure aspirator connected to the negative pressure tube to generate negative pressure in the negative pressure tube. The negative pressure aspirator and the negative pressure tube can smoothly absorb the smoke and blood generated during the operation through the suction chamber.

[0007] Further improvement, the front end of the holding part is provided with a fixing opening for fixing the knife body. The fixing opening enables the knife body to be stably mounted on the holding part.

[0008] Further improvement, the knife body includes a mounting portion mounted in the fixed opening and a cutting portion outside the mounting portion for cutting, the suction chamber is arranged on the cutting portion, and the front end of the suction chamber is arranged behind the cutting portion. The front end of the suction chamber is arranged behind the cutting portion to ensure that the portion of the knife body that cuts the skin is exposed to the outside, so that the electric knife can operate smoothly.

[0009] Further improvement, the suction chamber moves inward and outward on the knife body. The suction chamber can move inward and outward to absorb blood in the surgical site.

[0010] Further improvement, the lower part of the suction cavity is formed with a drainage channel for attracting liquid. The drainage channel for attracting liquid can smoothly absorb the blood generated in the surgical site.

[0011] Further improvement, the connection between the mounting part and the knife body is provided with a limit surface to prevent the suction chamber from moving backwards. When the suction chamber moves to the rear end, the rear end of the suction chamber fits tightly with the limit surface. Setting the limit surface can prevent the suction chamber from moving too far back, resulting in failure to absorb smoke and blood generated during surgery in time.

[0012] Further improvement, the connection between the suction chamber and the mounting part is tightly fitted with a sealing sleeve to improve the sealing of the suction chamber. The sealing sleeve can further improve the sealing of the suction chamber, making the suction of the suction chamber stronger and able to absorb smoke and blood more quickly.

[0013] Further improvement, the front end of the sealing sleeve is arranged at the front end of the connection between the negative pressure tube and the suction chamber, and the sealing sleeve is wrapped outside the negative pressure tube until it extends to the rear of the mounting part. Fixing the negative pressure tube to the mounting part by the sealing sleeve can prevent the negative pressure tube from moving around and affecting the doctor's field of vision, thereby affecting the operation.

[0014] The beneficial effects of the utility model are as follows: the utility model improves the doctor's work efficiency by arranging a suction chamber on the knife body to absorb the smoke generated during the operation without affecting the doctor's field of vision and operation; at the same time, the suction chamber can move back and forth on the knife body, and a drainage channel is formed at the lower part of the suction chamber, which can directly absorb the blood generated at the surgical site during the operation, further improving the operation efficiency; at the same time, the suction chamber arranged on the knife body can prevent the knife body from touching other skin and causing damage, thereby playing a certain protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of part A

[0017] Figure 3It is the front view of the holding part;

[0018] Figure 4 It is a cross-sectional view of the blade body and the suction chamber.

[0019] Explanation of the accompanying drawings: holding part 1, blade body 2, suction chamber 3, suction part 4, cavity part 5, connecting part 6, negative pressure device 7, negative pressure tube 8, negative pressure suction device 9, fixed opening 10, mounting part 11, cutting part 12, drainage channel 13, limiting surface 14, sealing sleeve 15. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the drawings and specific embodiments of the specification. A person of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the utility model involved in the following description are usually only embodiments of a part of the utility model, rather than all of the embodiments. Therefore, based on the embodiments in the utility model, all other embodiments obtained by a person of ordinary skill in the art without making creative work should fall within the scope of protection of the utility model.

[0021] A surgical electric knife with suction function comprises a holding portion 1, and a blade body 2 arranged at the front end of the holding portion 1 and extending forward. Since the electric knife cuts the skin by high temperature, a large amount of smoke will be generated when the high-temperature blade body 2 contacts the skin. The large amount of smoke will greatly affect the vision of the surgeon. Usually, an assistant will use a smoking device to suck away the smoke. This method cannot suck away the smoke in time, and will also affect the surgeon and the efficiency of the operation. Currently, there is a surgical electric knife with a smoking tube, and the smoking tube is fixedly installed on one side of the blade body 2. Although the smoking surgical knife with this structure can suck away the smoke in time, the smoking tube and the fixing parts are attached to the blade body 2, which greatly increases the size of the electric knife and is easy to affect the doctor's operation. At the same time, the smoking tube is independent of one side of the blade body 2, which is easy to affect the doctor's vision. The doctor needs to adjust the direction of the blade body 2, which also affects the surgeon to a certain extent. The suction chamber 3 includes a suction portion 4 at the front end close to the head of the blade body 2, a cavity portion 5 in the middle part, and a connection portion 6 sealed with the blade body 2 at the rear end. The suction portion 4 surrounds the outer periphery of the blade body 2 and forms an annular open structure. At the same time, in this embodiment, the suction chamber 3 is made of a transparent suction tube as a material, which is not only low in cost, but also has a transparent structure that does not affect the doctor's field of vision. In order to enable the suction chamber 3 to smoothly absorb the smoke during the operation, a negative pressure device 7 is connected to the suction chamber 3, wherein the negative pressure device 7 includes a negative pressure tube 8 arranged at the tail of the suction chamber 3 and interconnected with the suction chamber 3, and a negative pressure suction device 9 connected to the negative pressure tube 8 and generating negative pressure in the negative pressure tube 8.

[0022] In order to ensure that the blade body 2 can be stably installed on the holding part 1, a fixing opening 10 for fixing the blade body 2 is provided at the front end of the holding part 1. The specific fixing method can be determined according to the situation. A snap-in groove can be opened in the fixing opening 10, and a snap-in piece that cooperates with the snap-in groove can be provided on the blade body 2, or the fixing opening 10 and the blade body 2 can be fixed by interference fit. The blade body 2 includes a mounting portion 11 installed in the fixing piece, which is combined with a cutting portion 12 outside the fixing piece for cutting. The suction chamber 3 is provided on the cutting portion 12. Since the surgical electrosurgical knife needs to make the blade body 2 contact with the skin surface of the human body to cut, in order to prevent the suction chamber 3 from being blocked between the blade body 2 and the skin surface of the human body and causing the inability to cut, the front end of the suction chamber 3 is provided behind the cutting portion 12. This structure can ensure that the blade body 2 can be exposed to the outside and in close contact with the skin surface of the human body.

[0023] Since the electric knife uses high temperature to cut the skin and make the wound scab quickly, although the scab can form quickly, a small amount of blood will flow out and collect in the surgical site. Blood is liquid, and long-term contact with the electric knife will be heated to a high temperature by the electric knife, which can easily cause burns to the skin around the surgical site. Therefore, during the operation, the blood collected in the surgical site needs to be cleaned up quickly. Usually, there will be an assistant doctor or nurse to assist the surgeon to clean the blood, which can easily affect the surgeon and also affect the efficiency of the operation. In order to solve the above efficiency, The suction chamber 3 moves inward and outward on the blade body 2, and at the same time, a drainage channel 13 for attracting liquid is formed at the lower part of the suction chamber 3. When the surgeon finds that blood has accumulated at the surgical site during the operation, he only needs to adjust the position of the suction chamber 3 to absorb the blood through the suction chamber 3, which greatly improves the efficiency and continuity of the operation. At the same time, the electric knife is in a high temperature state when in use, and the suction chamber 3 is arranged on the outer sleeve of the blade body 2, leaving only the cutting head part exposed to the outside, which can prevent the doctor from accidentally letting the blade contact the patient's skin and cause other injuries to the patient, and plays a certain protective role.

[0024] Since the suction chamber 3 can move forward and backward on the blade body 2, in order to prevent the suction chamber 3 from moving backward excessively, causing the suction part 4 of the suction chamber 3 to move too far away from the head of the blade body 2, resulting in the failure to suck away the smoke in time, a limiting surface 14 is provided on one side of the fixed opening 10 on the fixing piece to prevent the suction chamber 3 from moving backward. When the suction chamber 3 moves to the rearmost end, the rear end of the suction chamber 3 is tightly fitted with the limiting surface 14. In order to further improve the sealing performance inside the suction chamber 3 so that smoke and blood can be sucked away more easily, a sealing sleeve 15 for improving the sealing performance inside the suction chamber 3 is tightly fitted outside the connection between the suction chamber 3 and the fixing piece. In this embodiment, the sealing sleeve 15 is a common infusion film in hospitals, and this film has excellent sealing performance.

[0025] Among them, the front end of the sealing sleeve 15 is arranged at the front end of the connection between the negative pressure tube 8 and the suction chamber 3. Since the negative pressure tube 8 is arranged on one side of the suction chamber 3 and gradually extends and has a long length, in order to prevent the negative pressure tube 8 from affecting the doctor's operation, the sealing sleeve 15 is wrapped around the negative pressure tube 8 and extends to the rear of the fixing part.

[0026] Certain words are used in the specification and claims of this utility model to refer to specific products. It should be understood by those with ordinary knowledge in the art that manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following specification and patent scope, the words "comprise", "have" and "include" are open-ended words and should be interpreted as "including but not limited to...".

[0027] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A surgical electric knife with a suction function, comprising a holding portion (1), and a knife body (2) arranged at the front end of the holding portion (1) and extending forward, characterized in that: The blade body (2) is provided with a suction chamber (3), the suction chamber (3) comprising a suction portion (4) at the front end close to the head of the blade body (2), a cavity portion (5) in the middle, and a connection portion (6) at the rear end that is sealed and connected to the blade body (2), the suction portion (4) surrounding the outer periphery of the blade body (2) to form an annular open structure, and a negative pressure device (7) is connected to the suction chamber (3).

2. The surgical electrosurgical knife with suction function according to claim 1, characterized in that: The negative pressure device (7) comprises a negative pressure tube (8) arranged at the rear of the suction chamber (3) and interconnected with the suction chamber (3), and a negative pressure suction device (9) connected to the negative pressure tube (8) and causing negative pressure to be generated in the negative pressure tube (8).

3. The surgical electrosurgical knife with suction function according to claim 1, characterized in that: The front end of the holding portion (1) is provided with a fixing opening (10) for fixing the knife body (2).

4. The surgical electrosurgical knife with suction function according to claim 3, characterized in that: The blade body (2) comprises a mounting portion (11) fixed in the fixing opening (10) and a cutting portion (12) arranged outside the mounting portion (11) and performing cutting, the suction chamber (3) being arranged on the cutting portion (12), and the front end of the suction chamber (3) being arranged behind the cutting portion (12).

5. The surgical electrosurgical knife with suction function according to claim 1, characterized in that: The suction chamber (3) is fitted on the blade body (2) to move inward and outward.

6. The surgical electrosurgical knife with suction function according to claim 1, characterized in that: A drainage channel (13) for attracting liquid is formed in the lower part of the suction chamber (3).

7. The surgical electrosurgical knife with suction function according to claim 4, characterized in that: A limiting surface (14) is provided at the connection between the mounting portion (11) and the blade body (2) to prevent the suction chamber (3) from moving backwards. When the suction chamber (3) moves to the rearmost end, the rear end of the suction chamber (3) is tightly fitted with the limiting surface (14).

8. The surgical electrosurgical knife with suction function according to claim 7, characterized in that: A sealing sleeve (15) is tightly fitted outside the connection between the suction chamber (3) and the mounting portion (11) to improve the sealing performance of the interior of the suction chamber (3).

9. The surgical electrosurgical knife with suction function according to claim 8, characterized in that: The front end of the sealing sleeve (15) is arranged at the front end of the connection between the negative pressure tube (8) and the suction chamber (3), and the sealing sleeve (15) is wrapped around the outside of the negative pressure tube (8) and extends to the rear of the mounting portion (11).

Images