Multifunctional foot-controlled electrotome with insulation protection and negative pressure suction functions
By designing a multi-functional foot-controlled electrosurgical unit with insulation protection and negative pressure suction, the problems of accidental contact with high-frequency electrosurgical units and harmful fume damage have been solved. This integrates insulation protection and fume absorption, reducing the risk of accidental injury and occupational exposure, and improving surgical efficiency.
Patent Information
- Application Number
- CN202422853320.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing high-frequency electrosurgical units are prone to accidental contact and injury during use, and harmful fumes can harm surgical personnel. In existing technologies, it is inconvenient to place the electrosurgical unit in an insulated container, which increases the risk of accidents.
Design a multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function. The blade is covered by an insulating protective sheath and slidably connected to the shell, realizing the integration of insulation protection and smoke absorption. The negative pressure suction device is used to remove smoke and body fluids.
This technology integrates insulation protection and smoke absorption for electrosurgical units, reducing the risk of accidental injury, lowering the occupational exposure risk for medical staff, and improving surgical efficiency.
Smart Images

Figure CN223640820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to human daily necessities, and more particularly to medical devices, especially a multi-functional foot-controlled electrosurgical unit with insulation protection and negative pressure suction function. Background Technology
[0002] A high-frequency electrosurgical unit (HFOS) is an electrosurgical instrument that replaces a mechanical scalpel for tissue cutting. It heats tissue by generating a high-frequency, high-voltage current at the tip of its effective electrode, achieving tissue separation and coagulation, thus providing cutting and hemostasis. It is a commonly used surgical instrument. Safe use of HFOS is crucial. HFOS connected to the machine should be placed in an insulated container and not left lying around. Currently, HFOS use sterilized outer packaging boxes as insulated containers. In clinical use, users must retrieve the HFOS from the insulated box, which is inconvenient. Various factors during surgery frequently lead to accidental contact and injury to surgical personnel or patients. Compared to hand-controlled HFOS, foot-controlled HFOS are more prone to accidental contact. If surgeons do not have the habit of returning the HFOS to the insulated box after use, accidental injury is highly likely in emergencies. Furthermore, the harmful fumes generated during surgery also pose a risk to personnel involved in the procedure. Summary of the Invention
[0003] The purpose of this utility model is to provide a multi-functional foot-controlled electrosurgical knife with insulation protection and negative pressure suction function. This multi-functional foot-controlled electrosurgical knife with insulation protection and negative pressure suction function aims to solve the technical problems in the prior art where electrosurgical knives are prone to accidental damage and harmful fumes can harm surgical personnel if they are not placed in an insulating container in time.
[0004] This utility model discloses a multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function, including an electric knife body, the electric knife body including a handle, the front end of the handle being provided with a blade head, a retaining ring being detachably connected to the handle, a housing being fixedly connected to one side of the retaining ring, the length direction of the housing being parallel to the length direction of the handle, the front end of the housing being provided with an opening, an insulating protective sheath passing through the opening, the rear end of the insulating protective sheath extending into the housing and forming a sliding pair parallel to the length direction of the housing with the housing, the front end of the insulating protective sheath extending forward to the front end of the handle and then bending towards one side of the blade head and extending to the front of the blade head;
[0005] The insulating protective sheath is hollow tubular, and its inner cavity is connected to the inner cavity of the shell. The front and rear ends of the insulating protective sheath are respectively provided with a smoke inlet and a smoke outlet. The rear end of the shell is provided with a suction pipe interface, which is connected to the inner cavity of the shell.
[0006] Furthermore, the inner surfaces at both ends of the housing are provided with buckles, and the outer surface of the insulating protective sheath is provided with a groove that retracts and expands with the buckles.
[0007] Furthermore, a sealing ring that mates with the insulating protective sheath is provided on the inner wall of the housing.
[0008] Furthermore, the insulating protective sheath is made of plastic.
[0009] Compared with existing technologies, the advantages of this invention are positive and significant. This invention, by designing a multifunctional foot-controlled electrosurgical unit with an insulation protection device, integrates cutting, insulation protection, and smoke absorption functions. It can be operated with one hand, making it convenient for surgeons, reducing the occurrence of accidents, lowering the occupational exposure risk for medical personnel, and improving surgical efficiency. Attached Figure Description
[0010] Figure 1 This is a front view schematic diagram of a multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function according to this utility model.
[0011] Figure 2 This is a first perspective view of a multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function according to this utility model.
[0012] Figure 3 This is a second three-dimensional schematic diagram of a multi-functional foot-controlled electric knife with insulation protection and negative pressure attraction function according to this utility model.
[0013] Figure 4 This is a bottom view of a multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function according to this utility model.
[0014] Figure 5 for Figure 4 A diagram showing the view from below.
[0015] Figure 6 for Figure 4 A side view diagram. Detailed Implementation
[0016] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.
[0017] like Figures 1-6As shown, this utility model discloses a multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function, including an electric knife body. The electric knife body includes a handle 1, and a blade head 2 is provided at the front end of the handle 1. A retaining ring 3 is detachably connected to the handle 1. A housing 4 is fixedly connected to one side of the retaining ring 3. The length direction of the housing 4 is parallel to the length direction of the handle 1. An opening is provided at the front end of the housing 4, and an insulating protective sheath 5 is inserted through the opening. The rear end of the insulating protective sheath 5 extends into the housing 4 and forms a sliding pair with the housing 4 parallel to the length direction of the housing 4. The front end of the insulating protective sheath 5 extends forward to the front end of the handle 1 and then bends towards the side of the blade head 2 and extends to the front of the blade head 2.
[0018] The insulating protective sheath 5 is a hollow tube, and the inner cavity of the insulating protective sheath 5 is connected to the inner cavity of the shell 4. The front end and rear end of the insulating protective sheath 5 are respectively provided with a smoke inlet 6 and a smoke outlet (not shown in the figure). The rear end of the shell 4 is provided with a suction pipe interface 7, which is connected to the inner cavity of the shell 4.
[0019] Furthermore, buckles 8 are respectively provided on the inner sides of both ends of the housing 4, and a slot (not shown in the figure) is provided on the outer side of the insulating protective sheath 5 to telescopically cooperate with the buckles 8.
[0020] Furthermore, a sealing ring (not shown in the figure) is provided on the inner wall of the housing 4 to cooperate with the insulating protective sheath 5.
[0021] Furthermore, the insulating protective sheath 5 is made of plastic.
[0022] Specifically, in this embodiment, the electric knife body, handle 1, blade 2, retaining ring 3, suction pipe interface 7, buckle 8, groove, sealing ring, etc., all adopt well-known solutions in the prior art, which are already known to those skilled in the art, and will not be described in detail here.
[0023] The working principle of this embodiment:
[0024] The retaining ring 3 is the base connecting the entire insulation protection and negative pressure suction device. The insulation protection sheath 5 can move back and forth within the housing 4 to extend and retract, and can be fixed to the extended and retracted positions with the housing 4 by two buckles 8 and a slot, respectively.
[0025] When in use, push the insulating protective sheath 5 backward, and it retracts into the housing 4, exposing the blade 2. Connect the suction pipe interface 7 to the negative pressure suction pipe, which is then connected to the negative pressure generating device. The electrosurgical unit can then begin operation. During operation, the generated smoke, blood, or bodily fluids pass sequentially through the smoke inlet 6 and smoke outlet of the insulating protective sheath 5, the inner cavity of the housing 4, and the suction pipe, and are then sucked away by the suction device, reducing harm to the surgical personnel. When not in use, push the insulating protective sheath 5 forward to cover and protect the blade 2, providing insulation protection.
[0026] This invention designs a multifunctional foot-controlled electrosurgical unit with insulation protection and negative pressure suction, integrating cutting, insulation protection, and smoke absorption functions. It can be operated with one hand, making it convenient for surgeons, reducing the occurrence of accidents, lowering the occupational exposure risk for medical staff, and improving surgical efficiency.
Claims
1. A multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function, characterized in that, The device includes an electrosurgical body, which includes a handle. A blade head is provided at the front end of the handle. A retaining ring is detachably connected to the handle. A housing is fixedly connected to one side of the retaining ring. The length direction of the housing is parallel to the length direction of the handle. An opening is provided at the front end of the housing. An insulating protective sheath passes through the opening. The rear end of the insulating protective sheath extends into the housing and forms a sliding pair with the housing parallel to the length direction of the housing. The front end of the insulating protective sheath extends forward to the front end of the handle, then bends towards the side of the blade head and extends to the front of the blade head. The insulating protective sheath is hollow tubular, and the inner cavity of the insulating protective sheath is connected to the inner cavity of the shell. The front end and rear end of the insulating protective sheath are respectively provided with a smoke inlet and a smoke outlet. The rear end of the shell is provided with a suction pipe interface, which is connected to the inner cavity of the shell.
2. The multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function according to claim 1, characterized in that, The inner surfaces at both ends of the housing are provided with buckles, and the outer surface of the insulating protective sheath is provided with a groove that retracts and expands with the buckles.
3. A multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function according to claim 1, characterized in that, The inner wall of the housing is provided with a sealing ring that mates with the insulating protective sheath.
4. A multi-functional foot-controlled electric knife with insulation protection and negative pressure suction function according to claim 1, characterized in that, The insulating protective sheath is made of plastic.