A novel negative pressure ablation device

Abstract

The application discloses a novel negative pressure ablation device, which comprises an ablation electrode needle sheath at the front end and an operation handle at the rear end, the ablation electrode needle sheath is connected with an electrode lead wire at the tail end, and the electrode lead wire passes through the operation handle; the negative pressure suction module is further included, a hollow cavity is arranged in the ablation electrode needle sheath, a plurality of suction holes are arranged through the side wall of the ablation electrode needle sheath, a hollow negative pressure suction pipe is connected with the tail end of the hollow cavity, the hollow negative pressure suction pipe is connected with an external suction pump through a suction pipeline passing through the operation handle, and the hollow negative pressure suction pipe and the suction pipeline jointly form a negative pressure suction channel. The ablation electrode needle sheath is used for local ablation of a lesion, and the negative pressure suction module is used for sucking necrotic tissues and liquid secretions generated in the ablation process, so that the ablation device has a double treatment effect, can efficiently and accurately remove the lesion, reduces trauma, promotes rapid recovery of a patient, and has important clinical application value.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a novel negative pressure ablation device. Background Technology

[0002] Granulomatous mastitis is a chronic inflammatory breast disease characterized by the formation of granulomas within the mammary lobules accompanied by inflammatory cell infiltration. Common phenotypes of granulomatous mastitis include early localized mass type, abscess type (with fluid discharge or necrotic material accumulation), and mixed lesions (coexistence of solid inflammatory tissue and fluid components). Treatment options are typically chosen based on the lesion phenotype, individual patient differences, and treatment stage. Currently, treatment methods for this disease include conservative treatment, drug therapy, and surgery. Surgical incision and drainage or lesion resection are widely used in existing techniques. However, the indistinct borders and multifocal nature of granulomatous mastitis lesions necessitate expanding the resection area during surgery, causing damage to normal glandular and adipose tissue, postoperative breast collapse, and scar hyperplasia, severely impacting the patient's quality of life. Furthermore, while traditional surgical resection can remove solid lesions, its effectiveness in draining fluid discharge is limited, and residual necrotic tissue easily leads to recurrence. Current energy ablation devices are designed only for solid lesions and cannot effectively remove mixed fluid-filled necrotic material. Residual secretions can easily lead to secondary infections or lesion recurrence. While existing fluid-filled lesion aspiration techniques are commonly used for abscess drainage, they lack the ability to actively ablate solid lesions and cannot handle solid inflammatory masses (such as granulomatous nodules or fibrotic tissue), resulting in incomplete treatment and often being used as adjunctive therapy. Alternating between different devices to treat solid lesions and fluid-filled secretions increases surgical time and the risk of cross-infection.

[0003] Therefore, it is necessary to provide a novel device that combines ablation technology with negative pressure suction therapy, which can simultaneously ablate and aspirate residual inflammatory tissue and secretions from the lesion to achieve precise treatment and minimize damage to the breast's shape. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention provides a novel negative pressure ablation device that uses energy ablation to directly destroy the pathological tissue of solid lesions, while simultaneously aspirating fluid secretions and necrotic tissue under negative pressure, achieving integrated "ablation-aspiration" treatment.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A novel negative pressure ablation device includes an ablation electrode needle sheath at the front end and an operating handle at the rear end. An electrode wire is connected to the tail end of the ablation electrode needle sheath, and the electrode wire passes through the operating handle. It also includes a negative pressure suction module. The ablation electrode needle sheath has a hollow cavity inside, and several suction holes are provided through the side wall of the ablation electrode needle sheath. A hollow negative pressure suction tube is connected to the tail end of the hollow cavity. The hollow negative pressure suction tube is connected to an external suction pump through a suction pipe passing through the operating handle. The hollow negative pressure suction tube and the suction pipe together form a negative pressure suction channel.

[0007] As a preferred technical solution, the hollow negative pressure suction tube and the ablation electrode needle sheath are coaxially nested, and an insulating layer is provided between the hollow negative pressure suction tube and the ablation electrode needle sheath.

[0008] As a preferred technical solution, the insulating layer is made of a high-temperature resistant insulating material.

[0009] As a preferred technical solution, the suction holes are arranged in 3 to 6 rows along the axial direction of the ablation electrode needle sheath, with 3 to 4 holes evenly distributed in each row.

[0010] As a preferred technical solution, the suction holes are arranged in 5 rows along the axial direction of the ablation electrode needle sheath, with 4 holes evenly distributed in each row.

[0011] As a preferred technical solution, the diameter of the suction hole gradually changes along the axial direction of the ablation electrode needle sheath, with the smallest diameter near the tip of the ablation electrode needle sheath and the largest diameter near the handle end.

[0012] As a preferred technical solution, the inner wall of the suction hole is coated with a hydrophilic coating.

[0013] As a preferred technical solution, a one-way valve is provided in the negative pressure suction channel.

[0014] As a preferred technical solution, the suction pipeline is a corrugated pipe.

[0015] The beneficial effects of this invention are:

[0016] This invention presents a novel negative pressure ablation device that combines ablation and negative pressure suction technologies. It uses an ablation electrode sheath to locally ablate the lesion, while a negative pressure suction module aspirates necrotic tissue and fluid secretions generated during the ablation process. This dual therapeutic effect promises to effectively treat granulomatous mastitis, and is particularly suitable for patients with residual lesions after previous treatments. The minimally invasive treatment method of this negative pressure ablation device can efficiently and precisely remove lesions, reduce trauma, preserve breast shape, and promote rapid patient recovery. Furthermore, it allows for flexible adjustments based on different lesion types and treatment needs in individualized treatment, avoiding the trauma of traditional surgical treatments, and has significant clinical application value.

[0017] The novel negative pressure ablation device of the present invention uses an insulating layer between the hollow negative pressure suction tube and the ablation electrode needle sheath to isolate the suction function and prevent energy conduction from interfering with the suction function.

[0018] The novel negative pressure ablation device of this invention features a suction hole on the side wall of the ablation electrode needle sheath, which avoids the spread of local inflammation that may be caused by suction through a single channel during the ablation process, ensuring comprehensive cleaning and efficient suction of the treatment area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection area between the ablation electrode needle sheath and the hollow negative pressure suction tube;

[0022] Figure 3 This is a magnified diagram showing the details of the suction hole.

[0023] Reference numerals: 1-Ablation electrode needle sheath, 2-Hollow cavity, 3-Hollow negative pressure suction tube, 4-Insulating layer, 5-Suction hole, 6-One-way valve, 7-Operating handle, 8-Electrode wire, 9-Suction tubing. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] A new type of negative pressure ablation device, such as Figure 1As shown, the device includes an ablation electrode sheath 1 at the front end and an operating handle 7 at the rear end. An electrode wire 8 is connected to the tail end of the ablation electrode sheath 1, passing through the operating handle 7. The ablation electrode sheath 1 is used for local ablation of the lesion area. It also includes a negative pressure suction module. The ablation electrode sheath 1 has a hollow cavity 2 inside, and several suction holes 5 are provided through the side wall of the ablation electrode sheath 1. A hollow negative pressure suction tube 3 is connected to the tail end of the hollow cavity 2. The hollow negative pressure suction tube 3 is connected to an external suction pump through a suction pipe 9 passing through the operating handle 7. The hollow negative pressure suction tube 3 and the suction pipe 9 together form a negative pressure suction channel. During the ablation process, the external suction pump can be started simultaneously. Necrotic tissue and fluid secretions generated during the ablation process enter the hollow cavity 2 through the suction holes 5, and are then continuously suctioned out of the body through the negative pressure suction channel, thereby achieving the effect of clearing the lesion.

[0026] Furthermore, the suction pipe 9 is a corrugated pipe, and preferably, a one-way valve 6 is provided in the negative pressure suction channel.

[0027] Furthermore, such as Figure 2 As shown, the hollow negative pressure suction tube 3 and the ablation electrode needle sheath 1 are coaxially nested. An insulating isolation layer 4 is provided between the hollow negative pressure suction tube 3 and the ablation electrode needle sheath 1. The insulating isolation layer 4 is made of high temperature resistant insulating material. The insulating isolation layer 4 is responsible for isolating the outer ablation electrode needle sheath 1 and the inner hollow negative pressure suction tube 3 to avoid energy conduction interfering with the suction function.

[0028] Furthermore, the suction holes 5 are arranged in 3 to 6 rows along the axial direction of the ablation electrode needle sheath 1, with 3 to 4 holes evenly distributed circumferentially in each row; the suction holes penetrate the side wall of the ablation electrode needle sheath 1, ensuring suction around the lesion during ablation. Figure 3 As shown, the diameter of the suction hole 5 gradually changes along the axial direction of the ablation electrode needle sheath 1. The suction hole near the needle tip of the ablation electrode needle sheath 1 has the smallest diameter, and the suction hole 5 near the handle end has the largest diameter. In the needle tip direction, the smaller diameter suction hole can preferentially aspirate high-viscosity necrotic material, while the larger diameter suction hole near the handle direction facilitates the drainage of low-viscosity liquid secretions. Preferably, the inner wall of the suction hole 5 is coated with a hydrophilic coating, which can reduce adhesion resistance and make negative pressure suction smoother.

[0029] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A novel negative pressure ablation device, characterized in that: The device includes an ablation electrode needle sheath (1) at the front end and an operating handle (7) at the rear end. An electrode wire (8) is connected to the tail end of the ablation electrode needle sheath (1), and the electrode wire (8) passes through the operating handle (7). It also includes a negative pressure suction module. A hollow cavity (2) is provided inside the ablation electrode needle sheath (1). Several suction holes (5) are provided through the side wall of the ablation electrode needle sheath (1). A hollow negative pressure suction tube (3) is connected to the tail end of the hollow cavity (2). The hollow negative pressure suction tube (3) is connected to an external suction pump through a suction pipe (9) that passes through the operating handle (7). The hollow negative pressure suction tube (3) and the suction pipe (9) together form a negative pressure suction channel.

2. The novel negative pressure ablation device according to claim 1, characterized in that: The hollow negative pressure suction tube (3) and the ablation electrode needle sheath (1) are coaxially nested, and an insulating isolation layer (4) is provided between the hollow negative pressure suction tube (3) and the ablation electrode needle sheath (1).

3. The novel negative pressure ablation device according to claim 2, characterized in that: The insulating layer (4) is made of high-temperature resistant insulating material.

4. The novel negative pressure ablation device according to claim 1, characterized in that: The suction holes (5) are arranged in 3 to 6 rows along the axial direction of the ablation electrode needle sheath (1), with 3 to 4 holes evenly distributed in each row.

5. The novel negative pressure ablation device according to claim 4, characterized in that: The suction holes (5) are arranged in 5 rows along the axial direction of the ablation electrode needle sheath (1), with 4 holes evenly distributed in each row.

6. The novel negative pressure ablation device according to claim 4, characterized in that: The diameter of the suction hole (5) gradually changes along the axial direction of the ablation electrode needle sheath (1). The suction hole near the tip of the ablation electrode needle sheath (1) has the smallest diameter, and the suction hole (5) near the handle end has the largest diameter.

7. The novel negative pressure ablation device according to claim 4, characterized in that: The inner wall of the suction hole (5) is coated with a hydrophilic coating.

8. The novel negative pressure ablation device according to claim 1, characterized in that: The negative pressure suction channel is equipped with a one-way valve (6).

9. The novel negative pressure ablation device according to claim 1, characterized in that: The suction pipe (9) is a corrugated pipe.

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