Electrocoagulation aspirator

Abstract

An electrocoagulation aspirator comprises an aspiration tube and a negative pressure connection tube arranged at the tail end of the aspiration tube, the negative pressure connection tube is connected with a negative pressure generator, the side wall of the aspiration tube is provided with a first wire and a second wire, the first wire and the second wire are mutually insulated on the side wall of the aspiration tube, and the aspiration tube is mutually insulated from the first wire and the second wire. The head ends of the first lead and the second lead respectively extend out of the head end of the suction tube, and the first lead and the second lead can deform; the wire is connected with power. The two wires are arranged on the wall of the suction tube, the portions, exceeding the wall of the suction tube, of the wires are exposed, the electrocoagulation effect is achieved through electrification, the negative pressure connector at the tail end of the suction tube is connected with the negative pressure generator, the effect of sucking away smoke can be achieved, and the clear view is guaranteed; therefore, before the suction tube is inserted into the nasal cavity of a patient, the part, exceeding the suction tube, of the wire is bent and deformed by breaking the wire with two hands, so that the wire can accurately approach a part needing electric coagulation hemostasis.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an electrocoagulation suction device. Background Technology

[0002] Currently, most minimally invasive surgeries for nasal and sinus diseases require endoscopic procedures. During endoscopic nasal surgery, bleeding in the surgical area often obscures the surgical field, which can range from affecting the surgical progress to causing damage to vital structures such as the brain and internal carotid artery, leading to catastrophic consequences. Therefore, reliable hemostasis is crucial in endoscopic nasal surgery. Currently, bipolar electrocoagulation is commonly used for hemostasis in endoscopic nasal surgery. Traditional bipolar electrocoagulation devices connect two electrodes to two blades of a forceps, which are insulated from each other. During use, the current only passes through the tissue between the two tips of the forceps, resulting in reliable electrocoagulation with minimal damage to adjacent tissues, as illustrated in patent document CN 217744579 U.

[0003] However, the angle and direction of the working end of the blade connected to the electrode of the existing bipolar electrocoagulator cannot be adjusted, making it impossible to accurately approach the area that needs electrocoagulation; and smoke may be generated during the electrocoagulation process, obstructing the field of vision, making it impossible to achieve accurate and reliable hemostasis in many cases. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide an electrocoagulation suction device.

[0005] This utility model is implemented by the following method: an electrocoagulation aspirator, including a suction tube and a negative pressure connector disposed at the tail end of the suction tube, the negative pressure connector being connected to a negative pressure generator, a first guide wire and a second guide wire being provided on the side wall of the suction tube, the first guide wire and the second guide wire being insulated from each other on the side wall of the suction tube, the suction tube being insulated from the first guide wire and the second guide wire, the head ends of the first guide wire and the second guide wire respectively extending out of the head end of the suction tube, the first guide wire and the second guide wire being deformable; the guide wires are connected to a power source.

[0006] Preferably, the side wall of the suction tube or the side wall of the negative pressure tube is provided with a pressure relief hole.

[0007] Preferably, the outer wall of the suction tube is provided with a pressing part adapted to the size of a finger, and the pressure relief hole passes through the pressing part.

[0008] Preferably, a sealing valve is provided at the pressure relief hole, and the sealing valve is normally open.

[0009] Preferably, the sealing valve includes a valve body that can extend and retract relative to the pressure relief hole, and a guide post is provided at one end of the valve body facing the center of the suction tube. A reset spring is provided between the guide post and the negative pressure regulator to push the valve body out of the pressure relief hole.

[0010] Preferably, the valve body is frustum-shaped, with its diameter gradually decreasing from the end facing the center of the suction tube to the end furthest away from the suction tube; the diameter of the valve body at the end facing the center of the suction tube is smaller than the diameter of the pressure relief hole, and the diameter of the valve body at the end furthest from the suction tube is larger than the diameter of the pressure relief hole.

[0011] Preferably, the first and second wires are fixed to the wall portion of the suction tube and covered with insulating material; the ends of the first and second wires are exposed.

[0012] Preferably, the first wire and the second wire are fixed to the outer wall of the suction tube; the suction tube is made of insulating material.

[0013] Preferably, the first and second conductors are made of copper, iron, aluminum, or silver.

[0014] The beneficial effects of this utility model are as follows: This utility model provides an electrocoagulation aspirator, which, compared with the prior art, has at least the following technical effects: 1. By setting two wires on the wall of the suction tube and exposing the portion of the wires extending beyond the tube wall, electrocoagulation is achieved through energization. The negative pressure interface at the end of the suction tube is connected to a negative pressure generator, which can remove smoke and ensure a clear field of vision. Furthermore, the wires can be bent and deformed, allowing the wires to be bent and deformed by bending the portion extending beyond the suction tube before inserting the suction tube into the patient's nasal cavity, thus accurately approaching the site requiring electrocoagulation hemostasis. 2. A pressure relief hole is provided on the wall of the suction tube. The suction function can be easily controlled by pressing the pressure relief hole with the fingers, allowing it to operate when negative pressure suction is needed and release when not needed. 3. A sealing valve is provided at the pressure relief hole for more precise control of the suction function. A return spring is provided to drive the valve body to return to its original position, keeping the pressure relief hole in a normally open state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an electrocoagulation aspirator according to this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of an electrocoagulation aspirator according to the present invention.

[0017] Figure 3 This is a schematic diagram of the cross-sectional state of the wire of an electrocoagulation suction device of this utility model after deformation.

[0018] Figure 4 This is a schematic diagram of an electrocoagulation suction device of this utility model, in which a sealing valve is installed in the pressure relief hole.

[0019] Figure 5 This is a schematic diagram of an electrocoagulation suction device of this utility model, in which a sealing valve is installed in the pressure relief hole and the device is in a sealed state.

[0020] The following are the reference numerals: 1. Suction tube; 2. Negative pressure connection tube; 3. First guide wire; 4. Second guide wire; 5. Pressure relief hole; 6. Pressing part; 7. Sealing valve; 71. Valve body; 72. Guide post; 73. Return spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figures 1 to 5 An electrocoagulation aspirator includes a suction tube 1 and a negative pressure connector 2 located at the tail end of the suction tube 1. The negative pressure connector 2 is connected to a negative pressure generator. A first guide wire 3 and a second guide wire 4 are provided on the side wall of the suction tube 1. The first guide wire 3 and the second guide wire 4 are insulated from each other on the side wall of the suction tube 1. The suction tube 1 is insulated from the first guide wire 3 and the second guide wire 4. The tips of the first guide wire 3 and the second guide wire 4 extend beyond the tip of the suction tube 1, respectively. The first guide wire 3 and the second guide wire 4 are deformable. The guide wires are connected to a power source. By providing two guide wires on the wall of the suction tube and exposing the portion of the guide wires extending beyond the wall of the suction tube 1, an electric current is applied to achieve electrocoagulation. The negative pressure connector at the tail end of the suction tube 1 is connected to a negative pressure generator, which can remove smoke to ensure a clear field of vision. Furthermore, the guide wires are bendable and deformable, so that before inserting the suction tube 1 into the patient's nasal cavity, the portion of the guide wire extending beyond the suction tube 1 can be bent and deformed by hand, allowing it to accurately approach the site requiring electrocoagulation hemostasis.

[0023] Please see Figures 1 to 3 Preferably, the side wall of the suction tube 1 or the side wall of the negative pressure pipe 2 is provided with a pressure relief hole 5. The pressure relief hole 5 is provided on the tube wall of the suction tube 1, and the suction function can be easily controlled by pressing the pressure relief hole 5 with the fingers, so that it works when negative pressure suction is needed and is released when not needed.

[0024] Please see Figures 1 to 3 Preferably, the outer wall of the suction tube 1 is provided with a pressing part 6 adapted to the size of a finger, and the pressure relief hole 5 passes through the pressing part 6. The pressing part 6 is a plane, which can better achieve a seal using a finger.

[0025] Please see Figures 4 to 5 Preferably, a sealing valve 7 is provided at the pressure relief hole 5, and the sealing valve 7 is normally open.

[0026] Please see Figures 4 to 5 Preferably, the sealing valve 7 includes a valve body 71 that is retractable relative to the pressure relief hole 5. A guide post 72 is provided at one end of the valve body 71 facing the center of the suction tube 1. A return spring 73 is provided between the guide post 72 and the negative pressure regulator to push the valve body 71 out of the pressure relief hole 5. Providing a sealing valve 7 at the pressure relief hole 5 allows for more precise control of the suction function, and the return spring 73 drives the valve body 71 to return to its original position, keeping the pressure relief hole 5 in a normally open state.

[0027] Please see Figures 4 to 5 Preferably, the valve body 71 is frustum-shaped, with its diameter gradually decreasing from the end facing the center of the suction tube 1 to the end furthest away. The diameter of the valve body 71 at the end facing the center of the suction tube 1 is smaller than the diameter of the pressure relief hole 5, and the diameter of the end of the valve body 71 away from the suction tube 1 is larger than the diameter of the pressure relief hole 5. This allows for a better sealing effect as the valve body 71 extends deeper into the pressure relief hole 5. When the amount of valve body 71 inserted is small, for example, when a portion of the valve body 71 larger than the diameter of the pressure relief hole 5 extends into the pressure relief hole 5, the suction force at the suction end of the suction tube 1 can be adjusted. The more it extends, the stronger the suction; the less it extends, the weaker the suction.

[0028] Please see Figures 1 to 5 Preferably, the first wire 3 and the second wire 4 are fixed to the wall surface of the suction tube 1 and covered with an insulating material; the ends of the first wire 3 and the second wire 4 are exposed. This provides insulation, and the insulating material can be rubber, but is not limited to this.

[0029] Please see Figures 1 to 5 Preferably, the first wire 3 and the second wire 4 are fixed to the outer wall of the suction tube 1; the suction tube 1 is made of insulating material. Of course, it can also be made of a metal support with an insulating material covering its surface, rather than an insulating material.

[0030] Preferably, the first wire 3 and the second wire 4 are made of copper, iron, aluminum or silver, and have a certain degree of ductility, which makes it convenient for medical staff to bend the head of the wire so that it can accurately reach the patient's electrocoagulation site.

[0031] The working principle of this utility model is as follows:

[0032] When using, adjust the first lead 3 and the second lead 4 at the tip of the suction tube 1 to a suitable angle according to the patient's condition. Then, hold the suction tube 1 with one hand, placing one finger opposite the pressing part 6, and insert it deep into the nasal cavity and sinuses so that the electrocoagulation site is located between the tips of the first lead 3 and the second lead 4 to achieve electrocoagulation hemostasis. The smoke generated during electrocoagulation will be sucked away by the suction tube 1. Do not press the pressure relief hole 5 or the valve body 71 when entering, and keep the pressure relief hole 5 in the open state to avoid suctioning areas that do not need electrocoagulation. When the tips of the first lead 3 and the second lead 4 contact the electrocoagulation site, press the pressure relief hole 5 and the valve body 71 to seal the pressure relief hole 5 according to the smoke situation. This will generate suction at the tip of the suction tube 1 to suck away the smoke.

[0033] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0036] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. An electrocoagulation aspirator, characterized in that: The device includes a suction tube and a negative pressure connector located at the tail end of the suction tube. The negative pressure connector is connected to a negative pressure generator. The side wall of the suction tube is provided with a first wire and a second wire. The first wire and the second wire are insulated from each other on the side wall of the suction tube. The suction tube is insulated from the first wire and the second wire. The head ends of the first wire and the second wire extend out of the head end of the suction tube, respectively. The first wire and the second wire are deformable. The wires are connected to a power source.

2. The electrocoagulation aspirator according to claim 1, characterized in that: The suction tube or the negative pressure tube has a pressure relief hole on its side wall.

3. The electrocoagulation aspirator according to claim 2, characterized in that: The outer wall of the suction tube is provided with a pressing part adapted to the size of a finger, and the pressure relief hole passes through the pressing part.

4. The electrocoagulation aspirator according to claim 3, characterized in that: A sealing valve is provided at the pressure relief hole, and the sealing valve is normally open.

5. An electrocoagulation aspirator according to claim 4, characterized in that: The sealing valve includes a valve body that can extend and retract relative to the pressure relief hole. A guide post is provided at one end of the valve body facing the center of the suction tube. A reset spring is provided between the guide post and the negative pressure regulator to push the valve body out of the pressure relief hole.

6. An electrocoagulation aspirator according to claim 5, characterized in that: The valve body is shaped like a frustum, with its diameter gradually decreasing from the end facing the center of the suction tube to the end furthest away from the suction tube; the diameter of the valve body at the end facing the center of the suction tube is smaller than the diameter of the pressure relief hole, and the diameter of the valve body at the end furthest from the suction tube is larger than the diameter of the pressure relief hole.

7. An electrocoagulation aspirator according to claim 1, characterized in that: The first and second wires are fixed to the wall portion of the suction tube and covered with insulating material; the tips of the first and second wires are exposed.

8. An electrocoagulation aspirator according to claim 7, characterized in that: The first and second wires are fixed to the outer wall of the suction tube; the suction tube is made of insulating material.

9. An electrocoagulation aspirator according to claim 1, characterized in that: The first and second conductors are made of copper, iron, aluminum, or silver.

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