Liquid outlet cooling type electrocoagulation forceps

Abstract

The application discloses a liquid-outlet cooling type electric coagulation forceps, and belongs to the technical field of electric coagulation forceps. The electric coagulation forceps comprise two forceps arms, and a water-outlet channel is arranged in each forceps arm. A follow-up valve is further arranged, and the follow-up valve comprises a first valve piece and a second valve piece which are fixed to opposite inner sides of the two forceps arms respectively, are in sealing sliding cooperation, and form a fluid passage which is connected with the water-outlet channel. The first valve piece is provided with a liquid storage cavity and a second liquid outlet hole, and a liquid supply pipe is arranged in the forceps arm correspondingly, one end of the liquid supply pipe is connected with the liquid storage cavity, and the other end of the liquid supply pipe extends to the rear end of the forceps arm and is used for being connected with an external pressure water source. The second valve piece blocks the second liquid outlet hole in an idle state. When the forceps arms are closed towards each other, the two valve pieces are driven to slide relatively, the blocking is removed, and the medium flows into the water-outlet channel through the second liquid outlet hole and the fluid passage. The liquid supply pipe is arranged in the electric coagulation forceps, the medium passage is automatically turned on and turned off by means of the clamping action of the forceps arms, no additional switch is needed, the external pipeline is avoided from being hooked and damaged, the liquid is automatically cut off in a non-working state, the conveying path is stable, the target tissue can be cooled, the thermal damage of the surrounding tissue is reduced, and the tissue adhesion is reduced.

Description

Technical Field

[0001] This invention relates to the field of electrocoagulation tweezers, and more particularly to an electrocoagulation tweezers with liquid discharge cooling. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Electrocoagulation forceps are mainly used to perform electrocoagulation hemostasis on wounds during surgery. The fluid-dispensing type of electrocoagulation forceps has an added saline outlet channel at the tip, allowing saline to be infused into the electrocoagulation area during surgery. This locally cools the target tissue, reducing thermal damage to surrounding normal tissue caused by heat conduction and preventing adhesion between the forceps and human tissue.

[0004] To prevent continuous liquid discharge from electrocoagulation tweezers when not in use, existing liquid-discharge electrocoagulation tweezers typically have a switch to control the liquid output. A search revealed patent publication number CN224505556U, which discloses a self-controlled dripping electrocoagulation tweezers. This patent can automatically switch the liquid discharge mode according to the working status of the electrocoagulation tweezers. However, in this design, the drip tube at the electrocoagulation tweezers is exposed, which is prone to damage and snagging, reducing ease of use. To address the aforementioned deficiencies in the prior art, this application proposes a liquid-discharge cooling electrocoagulation tweezers to solve the aforementioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings mentioned above by providing a liquid discharge cooling type electrocoagulation forceps.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A liquid-discharge cooling electrocoagulation forceps includes two forceps arms, each with a water outlet channel inside. It also includes a follow-up valve, which comprises a first valve element and a second valve element. The first and second valve elements are fixedly disposed on the opposite inner sides of the two forceps arms. The first and second valve elements are in a sealing sliding fit, and a fluid passage that can communicate with each other is formed inside the first and second valve elements. The fluid passage is connected to the water outlet channel of the corresponding forceps arm. The first valve is provided with a liquid storage chamber and a second liquid outlet connected to the liquid storage chamber. A liquid supply pipe is provided inside the tweezer arm corresponding to the first valve. One end of the liquid supply pipe is connected to the liquid storage chamber, and the other end extends inside the tweezer arm to the end of the tweezer arm away from the tweezer tip, and is connected to an external pressure water source. In the idle state, the second valve blocks the second outlet hole; in the working state, the two tweezer arms close in opposite directions, driving the first valve and the second valve to slide relative to each other, releasing the blockage of the second outlet hole, and the medium in the storage chamber can flow into the water outlet channel in sequence through the second outlet hole and the fluid passage.

[0007] Furthermore, the first valve component is a water inlet column, and the second valve component is a sealing column. One end of the water inlet column is slidably fitted inside the sealing column and is sealed and adapted to the inside of the sealing column. The water inlet column and the sealing column are respectively fixed to the opposite inner sides of the two tweezer arms.

[0008] Furthermore, the water inlet column and the sealing column also serve as guide and limiting components to prevent misalignment of the two tweezer arms during the clamping process.

[0009] Furthermore, the liquid storage cavity is formed inside the side wall of the water inlet column, and the second liquid outlet is opened on the side wall of the water inlet column; the end of the sealing column facing the water inlet column is divided into a sealing section and a water outlet section, the sealing section is located on the side close to the water inlet column, and the sealing section is slidably and sealingly adapted to the water inlet column to seal the second liquid outlet; when the end of the water inlet column moves to the position of the water outlet section, a gap is formed between the water outlet section and the water inlet column for the second liquid outlet to discharge liquid.

[0010] Furthermore, multiple sets of the second liquid outlet holes are arranged along the length of the water inlet column; when the two tweezer arms approach each other, the multiple sets of second liquid outlet holes are unblocked in sequence, and the follow-up valve gradually increases the water output as the tweezer arms approach each other.

[0011] Furthermore, the second liquid outlet is an elongated opening extending along the length of the water inlet column.

[0012] The beneficial effects of this invention are reflected in: This invention integrates the liquid supply tube inside the forceps arm, and with the follow-up valve driven by the two forceps arms, the cooling medium passage can be automatically opened and closed by the clamping action of the forceps arms. There is no need to set up an additional independent control switch. This not only eliminates the problems of snagging and easy damage caused by exposed external pipelines, but also ensures that the cooling medium is output only when the electrocoagulation operation is in operation, and the liquid is automatically cut off when not in operation, effectively avoiding accidental liquid discharge. The cooling medium is transported along the internal channel, and the transport path is stable and reliable, which can stably cool the surgical target tissue, reduce thermal damage to the surrounding normal tissue, and reduce the risk of adhesion between the forceps tip and human tissue. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the liquid discharge cooling type electrocoagulation tweezers described in this application; Figure 2 This is a schematic diagram of the follower valve described in Example 1; Figure 3 This is a schematic diagram of the follower valve described in Example 2.

[0014] In the picture: 1. Tweezers arm; 11. Water outlet channel; 2. First valve component; 21. Liquid storage chamber; 22. Second liquid outlet; 3. Second valve component; 4. Fluid pathway; 5. Liquid supply pipe. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Example 1: Please see Figures 1 to 2 The present invention discloses a liquid-cooling electrocoagulation tweezers, including two tweezer arms 1, each tweezer arm 1 having a water outlet channel 11 inside, the end of the tweezer arm 1 having a hollow tweezer tip, the tweezer tip having a first water outlet hole (not shown in the figure), and one end of the water outlet channel 11 being connected to the first water outlet hole. It is also equipped with a follow-up valve, which includes a first valve element 2 and a second valve element 3. The first valve element 2 and the second valve element 3 are respectively fixedly installed on the opposite inner sides of the two tweezer arms 1. The first valve element 2 and the second valve element 3 are in a relatively sealed sliding fit, and the first valve element 2 and the second valve element 3 form a fluid passage 4 that can be communicated with each other. The fluid passage 4 is connected to the water outlet channel 11 of the corresponding tweezer arm 1. The first valve 2 is provided with a liquid storage chamber 21 and a second liquid outlet 22 connected to the liquid storage chamber 21. A liquid supply pipe 5 is provided inside the tweezer arm 1 corresponding to the first valve 2. One end of the liquid supply pipe 5 is connected to the liquid storage chamber 21, and the other end extends inside the tweezer arm 1 to the end of the tweezer arm 1 away from the tweezer tip, and is connected to an external pressure water source. In the idle state, the second valve 3 blocks the second outlet hole 22; in the working state, the two tweezer arms 1 close in opposite directions, driving the first valve 2 and the second valve 3 to slide relative to each other, releasing the blockage of the second outlet hole 22, and the medium in the storage chamber 21 can flow into the water outlet channel 11 through the second outlet hole 22 and the fluid passage 4 in sequence, and finally flow out through the first outlet hole.

[0017] This application integrates the liquid supply tube 5 inside the forceps arm 1, and with the follow-up valve driven by the two forceps arms 1, the cooling medium passage can be automatically opened and closed by the clamping action of the forceps arms 1. There is no need to set up an additional independent control switch. This not only eliminates the problems of hooking and easy damage caused by exposed external pipelines, but also ensures that the cooling medium is output only when the electrocoagulation operation is in operation, and the liquid is automatically cut off when not in operation, which effectively avoids accidental liquid discharge. The cooling medium is transported along the internal channel, and the transport path is stable and reliable, which can stably cool the surgical target tissue, reduce thermal damage to the surrounding normal tissue, and reduce the risk of adhesion between the forceps tip and human tissue.

[0018] In one embodiment, the first valve 2 is a water inlet column, and the second valve 3 is a sealing column. One end of the water inlet column is slidably fitted inside the sealing column and is sealed to the inside of the sealing column. The water inlet column and the sealing column are respectively fixed to the opposite inner sides of the two tweezer arms 1.

[0019] In this application, the water inlet column and the sealing column adopt a sealed sliding assembly structure. The two are synchronously linked with the corresponding tweezer arm 1. The valve position can be switched directly by means of the opening and closing action of the tweezer arm 1 without the need for additional drive components. The overall structure is simple and compact.

[0020] In one embodiment, the inlet column and the sealing column are rigid metal parts that also serve as guide and limiting parts to prevent the two tweezer arms 1 from misaligning during the clamping process and to ensure that the clamping action of the tweezer arms 1 is stable and reliable.

[0021] In one embodiment, the liquid storage cavity 21 is formed inside the side wall of the water inlet column, and the second liquid outlet 22 is opened on the side wall of the water inlet column; the end of the sealing column facing the water inlet column is divided into a sealing section and a water outlet section, the sealing section is located on the side close to the water inlet column, and the sealing section is slidably and sealingly adapted to the water inlet column to seal the second liquid outlet 22; when the end of the water inlet column moves to the position of the water outlet section, a gap is formed between the water outlet section and the water inlet column for the second liquid outlet 22 to discharge liquid.

[0022] In this application, the liquid storage chamber 21 and the second liquid outlet 22 are both integrated into the side wall of the water inlet column. By relying on the segmented structure of the sealing section and the water outlet section inside the sealing column, the second liquid outlet 22 can be blocked and opened by the sliding of the water inlet column relative to the sealing column. The valve group has a high degree of integration and sensitive switching response.

[0023] In one embodiment, multiple sets of the second liquid outlet 22 are provided along the length direction of the water inlet column; when the two tweezer arms 1 approach each other, the multiple sets of second liquid outlet 22 are unblocked in sequence, and the water output of the follow-up valve gradually increases as the tweezer arms 1 approach each other.

[0024] In this application, multiple sets of second outlet holes 22 are arranged along the length of the water inlet column, so that the water output of the follow-up valve can be adaptively adjusted according to the clamping displacement of the forceps arm 1. This matches the heat generation difference caused by the change in the forceps tip clamping distance during the operation. When the forceps tip clamping distance is smaller and the heat generation is higher, the flow rate of the cooling medium increases synchronously, thereby enhancing the local cooling effect of the target tissue and inhibiting the diffusion of thermal damage to the surrounding normal tissue. When the clamping distance is larger and the heat generation is lower, the flow rate decreases accordingly, realizing automatic adaptation of the cooling flow rate to the heat generation conditions of the operation, and avoiding excessive accumulation of saline to obstruct the surgical field.

[0025] Example 2: The difference between this embodiment and Embodiment 1 lies in the way the second liquid outlet 22 is set, as follows: like Figure 3 As shown, the second liquid outlet 22 is a long strip-shaped opening extending along the length of the water inlet column.

[0026] In this application, the second liquid outlet 22 is set as an elongated opening extending along the length of the water inlet column. The actual flow area of ​​the second liquid outlet 22 can be continuously changed by the sliding stroke of the water inlet column relative to the sealing column. This allows for continuous stepless adjustment of the cooling medium output flow rate as the forceps arm 1 is displaced. The flow rate adjustment transition is smooth, and there is no sudden change in flow rate. This is better suited to the continuous changes in electrocoagulation heat generation during surgery.

[0027] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] Additionally, "multiple" refers to two or more.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid-discharging and cooling type electrocoagulation forceps, comprising two forceps arms (1), each forceps arm (1) having a water outlet channel (11) inside, characterized in that, It also includes a follower valve, which includes a first valve (2) and a second valve (3). The first valve (2) and the second valve (3) are respectively fixedly disposed on the opposite inner sides of the two tweezer arms (1). The first valve (2) and the second valve (3) are relatively sealed and slidingly fitted. The first valve (2) and the second valve (3) form a fluid passage (4) that can be interconnected with each other. The fluid passage (4) is connected to the water outlet channel (11) of the corresponding tweezer arm (1). The first valve (2) is provided with a liquid storage chamber (21) and a second liquid outlet (22) connected to the liquid storage chamber (21). A liquid supply pipe (5) is provided inside the tweezer arm (1) corresponding to the first valve (2). One end of the liquid supply pipe (5) is connected to the liquid storage chamber (21), and the other end extends inside the tweezer arm (1) to the end of the tweezer arm (1) away from the tweezer tip, and is connected to an external pressure water source. In the idle state, the second valve (3) blocks the second liquid outlet (22); in the working state, the two tweezer arms (1) close in opposite directions, driving the first valve (2) and the second valve (3) to slide relative to each other, releasing the blockage of the second liquid outlet (22), and the medium in the storage chamber (21) can flow into the water outlet channel (11) in sequence through the second liquid outlet (22) and the fluid passage (4).

2. The liquid-cooling electrocoagulation tweezers according to claim 1, characterized in that, The first valve (2) is a water inlet column, and the second valve (3) is a sealing column. One end of the water inlet column is slidably fitted inside the sealing column and is sealed and adapted to the inside of the sealing column. The water inlet column and the sealing column are respectively fixed to the opposite inner sides of the two tweezer arms (1).

3. The liquid discharge cooling type electrocoagulation tweezers according to claim 2, characterized in that, The water inlet column and the sealing column also serve as guide and limiting components to prevent the two tweezer arms (1) from misaligning during the clamping process.

4. The liquid discharge cooling type electrocoagulation tweezers according to claim 1, 2, or 3, characterized in that, The liquid storage chamber (21) is formed inside the side wall of the water inlet column, and the second liquid outlet (22) is opened on the side wall of the water inlet column; the end of the sealing column facing the water inlet column is divided into a sealing section and a water outlet section, the sealing section is located on the side close to the water inlet column, and the sealing section is slidably and sealingly adapted to the water inlet column to seal the second liquid outlet (22); when the end of the water inlet column moves to the position of the water outlet section, a gap is formed between the water outlet section and the water inlet column for the second liquid outlet (22) to discharge liquid.

5. The liquid discharge cooling type electrocoagulation tweezers according to claim 4, characterized in that, The second liquid outlet (22) is provided in multiple sets along the length of the water inlet column; when the two tweezer arms (1) approach each other, the multiple sets of second liquid outlets (22) are unblocked in sequence, and the follow-up valve gradually increases the water output as the tweezer arms (1) approach each other.

6. The liquid discharge cooling type electrocoagulation tweezers according to claim 4, characterized in that, The second liquid outlet (22) is a long strip-shaped opening extending along the length of the water inlet column.

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