A plasma scalpel for anal fistula surgery

Abstract

The utility model discloses a kind of plasma scalpel for anal fistula operation, it is related to medical instrument technical field.The utility model includes handle, handle is connected with tool bit assembly, tool bit assembly includes: electrode wire and spring tube, electrode wire one end has electrode head, electrode wire is covered with internal insulating layer;Spring tube one end is connected with metal sleeve, the other end is connected with hard metal pipe, and spring tube, metal sleeve and hard metal pipe are all set in the outside of the internal insulating layer of electrode wire, for through spring tube realizes to electrode wire is bent and is shaped;Metal sleeve end part is equipped with liquid outlet, and metal sleeve and ball head structure are equipped with insulating head between set, the outer wall of spring tube and hard metal pipe is all equipped with outer insulating layer, and with infusion catheter communication.The utility model is set spring tube outside electrode wire, utilizes the bending and shaping effect of spring tube, realizes the bending adjustment of tool head, solve the problem that the overall use flexibility and adaptability of existing plasma scalpel is poor.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a plasma surgical knife for anal fistula surgery. Background Technology

[0002] Surgery is the most effective treatment for anal fistula and is suitable for most patients. Currently, surgical treatments for anal fistula mainly include fistula incision, seton placement, and laser surgery.

[0003] For example, Chinese utility model CN221814184U discloses an improved device for ablation electrode of anal fistula, including a sleeve. The sleeve is provided with a flushing part and a cleaning part from left to right. Multiple through holes are evenly distributed around the circumference of the sleeve in the flushing part. Multiple brushes are evenly distributed around the circumference of the sleeve in the cleaning part. An ablation electrode is fixed inside the sleeve. The left end of the ablation electrode is located outside the sleeve. Multiple water pipes are fixed inside the sleeve. The outlet of the water pipes is located at the through hole.

[0004] However, the existing plasma blade design does not take into account the special anatomical structure of the anal canal, making it difficult to handle curved fistulas and unable to flexibly adapt to the surgical treatment of various types of anal fistulas. Overall, its flexibility and adaptability are poor. Utility Model Content

[0005] The purpose of this invention is to provide a plasma surgical knife for anal fistula surgery. By sleeved with a spring tube on the outside of the electrode wire, the bending and shaping effect of the spring tube is used to adjust the bending of the blade, thus solving the problem of poor overall flexibility and adaptability of existing plasma surgical knives.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a plasma surgical scalpel for anal fistula surgery, comprising a handle connected to a scalpel head assembly, a lead wire, and an infusion catheter. The scalpel head assembly includes an electrode wire and a spring tube. One end of the electrode wire has an electrode head, and the other end is electrically connected to the positive electrode of the lead wire. The electrode wire is covered with an inner insulating layer. One end of the spring tube is fixedly connected to a metal sleeve, and the other end is fixedly connected to a rigid metal tube. The spring tube, metal sleeve, and rigid metal tube are all fitted outside the inner insulating layer of the electrode wire, used to bend and shape the electrode wire through the spring tube. The end of the metal sleeve has an outlet, and an insulating head is fitted between the metal sleeve and the ball head structure, making the metal sleeve insulated from the ball head structure. The outer walls of the spring tube and the rigid metal tube are both fitted with an outer insulating layer. The rigid metal tube is electrically connected to the negative electrode of the lead wire and communicates with the infusion catheter.

[0008] As a preferred embodiment of this invention, the electrode head is spherical in shape.

[0009] As a preferred technical solution of this utility model, the end face of the metal sleeve is provided with a plurality of U-shaped slots, so that the U-shaped slots and the end face of the insulating head are surrounded to form a liquid outlet.

[0010] As a preferred embodiment of this utility model, the outer diameter of the metal sleeve is larger than the outer diameter of the spring tube, and the outer surface of the outer insulating layer is flush with the outer wall of the metal sleeve.

[0011] As a preferred embodiment of this utility model, a three-way structure is provided inside the knife handle, the electrode wire passes through the three-way structure, and the outer wall of the inner insulating layer is tightly sealed with the three-way structure; one end of the rigid metal tube is connected to the inside of the three-way structure, and the outer wall is tightly sealed with the three-way structure; the three-way structure is connected to the infusion tubing and is used to inject the liquid in the infusion tubing into the rigid metal tube through the three-way structure.

[0012] This utility model has the following beneficial effects:

[0013] This invention utilizes a spring tube sleeved on the outside of the electrode wire, and the bending and shaping effect of the spring tube allows for bending and adjustment of the blade, thereby enabling flexible adaptation to surgical treatment of various types of anal fistulas and effectively improving the overall flexibility and adaptability of use.

[0014] Meanwhile, a fluid outlet is opened through the metal sleeve connected to the end of the spring tube, and the rigid metal tube is connected to the infusion catheter, so that physiological saline can be injected into the blade assembly and flow out through the outlet, thereby enabling physiological saline to be infused into the fistula during the operation.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a plasma surgical knife for anal fistula surgery according to the present invention;

[0018] Figure 2 This is a half-sectional view of a plasma surgical knife for anal fistula surgery according to the present invention;

[0019] Figure 3 This is a schematic diagram of the cutter head assembly;

[0020] Figure 4 This is a half-sectional view of the cutter head assembly;

[0021] Figure 5 This is a schematic diagram of the electrode wire structure;

[0022] Figure 6 This is a schematic diagram of the structure of a spring tube, a metal sleeve, and a rigid metal tube;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Handle, 2-Electrode wire, 3-Spring tube, 101-T-connector structure, 201-Electrode head, 202-Inner insulation layer, 301-Metal sleeve, 302-Hard metal tube, 303-Liquid outlet, 304-Insulating head, 305-Outer insulation layer, 306-U-shaped groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figure 1 As shown, this utility model is a plasma surgical knife for anal fistula surgery, including a handle 1. The handle 1 is connected to a blade assembly, a wire, and an infusion catheter. The blade assembly, the wire, and the infusion catheter are all inserted into the handle 1.

[0028] like Figures 3-5 As shown, the cutter head assembly includes: an electrode wire 2 and a spring tube 3. One end of the electrode wire 2 has an electrode head 201, which is a ball head structure, and the other end is electrically connected to the positive electrode of the wire 3. The electrode wire 2 is covered with an inner insulating layer 202.

[0029] like Figure 6As shown, a metal sleeve 301 is welded to one end of the spring tube 3, and a hard metal tube 302 is welded to the other end. The spring tube 3, the metal sleeve 301, and the hard metal tube 302 are all sleeved on the outside of the inner insulation layer 202 of the electrode wire 2, and there are gaps between them to form a liquid inlet channel.

[0030] like Figure 1 As shown, the spring tube 3 is specifically a flexible and shape-adjustable stainless steel metal hose, such as a stainless steel snake tube. The spring tube 3 is used to bend and shape the electrode wire 2, thereby allowing for flexible bending and adjustment of the blade assembly. This makes it flexible to adapt to the surgical treatment of various types of anal fistulas, resulting in a wide range of indications. It is suitable for various types of anal fistulas. Due to the flexible blade structure, it can handle curved fistulas and adapt to the complex anatomical structure of the anal canal, effectively improving the overall flexibility and adaptability of use.

[0031] like Figure 2 , 4 As shown in Figure 6, the metal sleeve 301 has an outlet 303 at its end, and an insulating head 304 is fitted between the metal sleeve 301 and the ball head structure 202, thus insulating the metal sleeve 301 from the ball head structure 202. Both the spring tube 3 and the rigid metal tube 302 have an outer insulating layer 305 fitted on their outer walls. The rigid metal tube 302 is electrically connected to the negative terminal of the conductor and communicates with the infusion tubing.

[0032] The metal sleeve 301 has four U-shaped slots 306 on its end face, which together with the end face of the insulating head 304 form four liquid outlets 303. The outer diameter of the metal sleeve 301 is larger than the outer diameter of the spring tube 3, and the outer surface of the outer insulating layer 305 is flush with the outer wall of the metal sleeve 301.

[0033] The tool holder 1 is provided with a three-way structure 101, which is similar to a three-way tube structure. The electrode wire 2 passes through the three-way structure 101, and the outer wall of the inner insulating layer 202 is tightly sealed with the three-way structure 101, thus achieving a seal.

[0034] One end of the rigid metal tube 302 is connected to the interior of the tee structure 101, and its outer wall is tightly sealed to the tee structure 101, thus sealing each other. The other port of the tee structure 101 is connected to an infusion catheter, which is used to inject liquid from the infusion catheter, such as saline, into the rigid metal tube 302 through the tee structure 101. This allows the saline to flow out through the outlet 303 during the operation, enabling the infusion of saline into the fistula during the procedure.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plasma surgical scalpel for anal fistula surgery, comprising a handle (1), wherein the handle (1) is connected to a blade assembly, a wire, and an infusion catheter, characterized in that: The cutter head assembly includes: Electrode wire (2), one end of which has an electrode head (201) and the other end is electrically connected to the positive electrode of the wire (3); the electrode wire (2) is covered with an inner insulating layer (202); A spring tube (3) is fixedly connected to a metal sleeve (301) at one end and to a rigid metal tube (302) at the other end. The spring tube (3), the metal sleeve (301) and the rigid metal tube (302) are all sleeved on the outside of the inner insulation layer (202) of the electrode wire (2) and are used to bend and shape the electrode wire (2) through the spring tube (3). The metal sleeve (301) has a liquid outlet (303) at its end, and an insulating head (304) is sleeved between the metal sleeve (301) and the ball head structure (202) to make the metal sleeve (301) and the ball head structure (202) insulated. The outer walls of both the spring tube (3) and the rigid metal tube (302) are fitted with an outer insulating layer (305). The rigid metal tube (302) is electrically connected to the negative pole of the wire and is connected to the infusion tubing.

2. The plasma surgical scalpel for anal fistula surgery according to claim 1, characterized in that, The electrode head (201) has a spherical structure.

3. The plasma surgical scalpel for anal fistula surgery according to claim 1, characterized in that, The end face of the metal sleeve (301) is provided with a plurality of U-shaped slots (306), so that the U-shaped slots (306) and the end face of the insulating head (304) are surrounded to form a liquid outlet (303).

4. A plasma surgical scalpel for anal fistula surgery according to claim 1 or 3, characterized in that, The outer diameter of the metal sleeve (301) is larger than the outer diameter of the spring tube (3), and the outer surface of the outer insulating layer (305) is flush with the outer wall of the metal sleeve (301).

5. A plasma surgical scalpel for anal fistula surgery according to claim 1, characterized in that, The handle (1) is provided with a three-way structure (101), the electrode wire (2) passes through the three-way structure (101), and the outer wall of the inner insulating layer (202) is tightly sealed with the three-way structure (101); one end of the hard metal tube (302) is connected to the inside of the three-way structure (101), and the outer wall is tightly sealed with the three-way structure (101); The three-way structure (101) is connected to the infusion tubing and is used to inject the liquid in the infusion tubing into the rigid metal tube (302) through the three-way structure (101).

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