Breast ablation electrode

Abstract

The utility model discloses a mammary gland ablation electrode, and relates to the technical field of medical instruments. In order to solve the problems that the pain of a patient is increased and the treatment time is prolonged due to the fact that twice puncture is needed in the existing mammary gland ablation process, the following technical scheme is provided: the mammary gland ablation catheter comprises a positive electrode puncture part, a first insulating sleeve, a negative electrode sleeve and a second insulating sleeve which are sequentially sleeved from inside to outside, and the positive electrode puncture part has tissue cutting and ablation functions; the rear end of the second insulating sleeve is sleeved with a first handle and a second handle, the rear end of the second handle is provided with a water inlet pipeline and a connector, the second handle can drive the positive electrode puncture part and the first insulating sleeve to move, the water inlet pipeline is communicated with the negative electrode sleeve, and the negative electrode sleeve achieves tissue flushing or tissue effusion extraction through the connector. The functions of ablation, residual tissue fluid extraction and surgical site cleaning can be completed only through one-time puncture, and a novel, safer and more effective surgical means is provided for treatment of breast diseases.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a breast ablation electrode. BACKGROUND

[0002] Benign lesions of breast account for 60%~85% of breast diseases, and are manifested as nodules or lumps in clinic, which are the results of duct or lobular tissue hyperplasia. The increased lumps not only affect the quality of life, but also have the possibility of canceration in some histological types of breast tumors. Although the benign nodules of breast confirmed by puncture biopsy can be observed with confidence, about half of the patients with nodules still choose surgical resection every year. Since open surgery inevitably causes some complications such as postoperative hemorrhage, infection, incision scar, breast shape change and the like, in order to achieve the same curative effect and better cosmetic effect, minimally invasive surgery is valued by physicians and patients and gradually developed.

[0003] At present, the main minimally invasive surgical methods include minimally invasive rotary cutting and ablation therapy. The vacuum-assisted breast minimally invasive rotary cutting system is composed of a rotary cutter and a vacuum suction pump. The rotary cutter cuts the lesion tissue under the auxiliary action of the vacuum suction pump, and the cut tissue is taken for biopsy or repeatedly cut until the lesion is completely removed. Since the incision is small, it is regarded as a cosmetic surgery for the treatment of benign breast tumors. However, it still has some outstanding problems, mainly including large internal trauma, tumor residue and postoperative hematoma. Ablation therapy can be generally divided into three types of cryoablation, thermal ablation and irreversible electroporation, among which thermal ablation includes radiofrequency ablation, microwave ablation, laser ablation and the like, all of which have the characteristics of in situ inactivation of tumor, avoidance of surgical resection, small trauma, quick recovery and no scar, and has become one of the important treatment methods for solid tumors.

[0004] The breast nodules or lumps sometimes accompany with cystic fluid accumulation. At this time, the cystic fluid needs to be aspirated with a fine needle first, and then the ablation device is inserted into the lesion position for ablation. Thus, two punctures need to be made, which increases the pain of the patient. In addition, in thermal ablation methods such as radiofrequency ablation, the central temperature is relatively high, which sometimes causes unnecessary damage to healthy tissues and increases the pain of the patient. It can be seen that the surgical tool needs to be improved in the treatment process of breast nodules. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a breast ablation electrode to solve the problem that the existing breast ablation process needs to be punctured twice, which increases the pain and treatment time of the patient.

[0006] The technical scheme for solving the above technical problem of the utility model is as follows:

[0007] The breast ablation electrode comprises: a positive electrode puncture part, a first insulating sleeve, a negative electrode sleeve and a second insulating sleeve which are sequentially sleeved from inside to outside, the head of the positive electrode puncture part is exposed from the front end of the first insulating sleeve, the front end of the first insulating sleeve is exposed from the front end of the negative electrode sleeve, and the head of the negative electrode sleeve is exposed from the front end of the second insulating sleeve;

[0008] The rear ends of the negative electrode sleeve and the second insulating sleeve are fixed in the first handle, the rear ends of the positive electrode puncture part and the first insulating sleeve are fixed in the second handle, the first handle and the second handle are detachably connected so that the second handle drives the positive electrode puncture part and the first insulating sleeve to be completely separated from the negative electrode sleeve, and the rear end of the second handle is respectively provided with a water inlet pipeline and a connector; the water inlet pipeline is communicated with the negative electrode sleeve so as to flush the tissue or extract tissue effusion through the negative electrode sleeve.

[0009] Further, a copper sheet connected with the tail end of the negative electrode sleeve is arranged in the first handle, and a spring needle is arranged in the second handle;

[0010] One wire of the connector is electrically connected with the tail end of the positive electrode puncture part, and the other wire of the connector is electrically connected with the spring needle; when the first handle and the second handle are in the connected state, the spring needle is in contact with the copper sheet to be electrically connected with the negative electrode sleeve.

[0011] Further, a luer male joint is arranged in the second handle and communicated with the water inlet pipeline, and a luer female joint is arranged in the first handle.

[0012] Further, a sealing ring is arranged at the front end of the luer female joint.

[0013] Further, a thread is arranged on the outer surface of the luer female joint, and a thread is arranged in the inner portion of the front end of the second handle.

[0014] Further, the head of the positive electrode puncture part is in the shape of a triangular pyramid.

[0015] The utility model has the following beneficial effects:

[0016] The utility model utilizes plasma to ablate lesion tissue, and the temperature required in the operation is low, so that the damage risk of healthy tissue can be reduced.

[0017] The positive electrode puncture part of the electrode can be separated from the negative electrode sleeve; if there is cystic hydrops, after puncturing the target lesion, the positive electrode puncture part can be taken out, at this time, the negative electrode sleeve forms a liquid extraction channel, the cystic hydrops can be extracted through the liquid extraction channel, and then physiological saline is injected to flush, and then the positive electrode puncture part is inserted to complete ablation, so that the pain of the patient can be reduced.

[0018] In addition, after the ablation is completed, the positive pole puncture part can be taken out again, the residual tissue fluid possibly existing at the surgical site is extracted through the negative pole sleeve, the surgical site is kept clean, and postoperative recovery of the patient is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is an overall structural diagram of the breast ablation electrode of the utility model;

[0020] Fig. 2 It is an internal structure diagram of the first handle and the second handle of the breast ablation electrode of the utility model;

[0021] Fig. 3 It is a structure diagram of the first handle and the second handle of the breast ablation electrode of the utility model in a separated state;

[0022] Figs. 1-3 The reference signs shown in the drawings represent: the positive pole puncture part 1, the first insulation sleeve 2, the negative pole sleeve 3, the second insulation sleeve 4, the first handle 5, the copper sheet 51, the luer female joint 52, the second handle 6, the spring needle 61, the luer male joint 62, the water inlet pipeline 7 and the connector 8. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model are described in detail below in combination with the drawings. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0024] Please refer to Figs. 1-3 The breast ablation electrode of the embodiment aims to provide a device capable of safely and effectively performing breast lesion tissue ablation, and the device also has the function of extracting cystic fluid and residual tissue fluid at the surgical site before and after ablation, so as to alleviate the pain of the patient and promote postoperative recovery. The specific embodiments of the breast ablation electrode will be described in detail below.

[0025] The breast ablation electrode mainly includes the positive pole puncture part 1, the first insulation sleeve 2, the negative pole sleeve 3 and the second insulation sleeve 4 which are sequentially sleeved from inside to outside, and the first handle 5, the second handle 6, the water inlet pipeline 7 and the connector 8 for operation and connection.

[0026] The positive electrode puncture part 1 is the core component of the electrode, and the head part is designed as a triangular pyramid shape, which makes the puncture part more sharp when penetrating the tissue, reduces the resistance, and thus relieves the pain of the patient. The front end of the positive electrode puncture part 1 is exposed from the front end of the first insulating sleeve 2, which ensures that the head part of the positive electrode puncture part 1 can directly contact the target lesion tissue during the operation. The rear end of the positive electrode puncture part 1 is fixed in the second handle 6, and is electrically connected with the main machine through a wire in the connector 8 to transmit the plasma energy.

[0027] The first insulating sleeve 2 is sleeved on the outside of the positive electrode puncture part 1, and its main function is to isolate the positive electrode puncture part 1 from the negative electrode sleeve 3 to prevent short circuit during the operation. The front end of the first insulating sleeve 2 is exposed from the front end of the negative electrode sleeve 3, which ensures that the head part of the positive electrode puncture part 1 can be exposed and operated. At the same time, a certain gap is left between the first insulating sleeve 2 and the negative electrode sleeve 3, so that the physiological saline can flow through and wrap the positive electrode puncture part 1 to form the conductive environment required by the plasma.

[0028] The negative electrode sleeve 3 is sleeved on the outside of the first insulating sleeve 2, and the head part is exposed from the front end of the second insulating sleeve 4. The negative electrode sleeve 3 serves as a return electrode, and together with the positive electrode puncture part 1 forms a channel for the plasma energy to flow through. The rear end of the negative electrode sleeve 3 is fixed in the first handle 5, and is electrically connected with the spring needle 61 in the second handle 6 through two copper sheets 51 in the first handle 5. When the second handle 6 is inserted into the first handle 5 and fixed, the spring needle 61 contacts the copper sheet 51, thereby realizing the electrical connection between the negative electrode sleeve 3 and the main machine. In addition, the negative electrode sleeve 3 also communicates with the water inlet pipeline 7 for introducing physiological saline during the operation, and through the liquid suction channel in the inside, the cystic fluid and residual tissue fluid at the operation site are extracted before and after ablation.

[0029] The second insulating sleeve 4 is sleeved on the outside of the negative electrode sleeve 3, and its main function is to further isolate the negative electrode sleeve 3 from the external environment, to ensure the safety and reliability of the operation. The rear end of the second insulating sleeve 4 is sleeved on the first handle 5, and is fixedly connected with the first handle 5.

[0030] The first handle 5 is one of the operation components of the electrode, and is provided with a structure for fixing the negative electrode sleeve 3 and the second insulating sleeve 4 inside, and a luer female connector 52 for electrical and liquid connection with the second handle 6. The innermost front end of the luer female connector 52 is provided with a sealing ring to ensure that a liquid sealed pipeline is formed with the luer male connector 62 in the second handle 6. The outer surface of the luer female connector 52 is provided with threads for matching with the internal threads of the front end of the second handle 6, to realize the detachable connection between the first handle 5 and the second handle 6.

[0031] The second handle 6 is another operating component of the electrode, which is internally provided with a structure for fixing the positive electrode puncture part 1 and the first insulating sleeve 2, and a luer male joint 62 and a spring needle 61 for electrical and liquid connection with the first handle 5. The luer male joint 62 is in communication with the water inlet pipeline 7 for introducing physiological saline into the negative electrode sleeve 3. The spring needle 61 is used for electrical connection with the copper sheet 51 in the first handle 5 to realize electrical communication of the negative electrode sleeve 3 with the main machine. The rear end of the second handle 6 is respectively provided with the water inlet pipeline 7 and the connector 8, facilitating operation and connection during the operation.

[0032] In the specific use process, first, the second handle 6 needs to be inserted into the first handle 5 and fixed. At this time, the positive electrode puncture part 1 and the first insulating sleeve 2 are exposed from the front end of the negative electrode sleeve 3, and the sharp blade of the positive electrode puncture part 1 breaks the tissue to reach the target lesion site.

[0033] If cystic fluid needs to be extracted during the operation, the second handle 6 can be removed. At this time, the negative electrode sleeve 3 forms a liquid extraction channel, through which the cystic fluid can be extracted. At the same time, physiological saline can be introduced through the water inlet pipeline 7 for flushing to clean the operation site. After the cystic fluid is extracted and the flushing is completed, the second handle 6 is inserted into the first handle 5 and fixed again to prepare for the ablation operation.

[0034] Before the ablation operation, it is necessary to ensure that the spring needle 61 is in good contact with the copper sheet 51 to realize electrical communication of the negative electrode sleeve 3 with the main machine. Then, the connector 8 is connected with the main machine to ensure that the plasma energy can be smoothly transmitted between the positive electrode puncture part 1 and the negative electrode sleeve 3. At the same time, the luer female joint 52 and the male joint 62 cooperate to form a liquid sealing pipeline to ensure that the physiological saline can smoothly flow into the negative electrode sleeve 3 and wrap the positive electrode puncture part 1.

[0035] Next, physiological saline is introduced from the water inlet pipeline 7. The physiological saline flows out through the gap between the first insulating sleeve 2 and the negative electrode sleeve 3 and wraps the positive electrode puncture part 1. Under the action of the main machine, the plasma energy flows between the positive electrode puncture part 1 and the negative electrode sleeve 3, and a highly concentrated plasma vapor sheath layer is formed around the electrode through the conduction of the physiological saline. The plasma sheath layer is composed of a large number of charged particles, which are accelerated by the electric field to generate sufficient energy and have strong oxidizing property, so as to break the molecular bonds of the target tissue cells at low temperature (40℃-70℃), so as to rapidly decompose the tissue into low molecular weight molecules and atoms, thereby forming real-time and efficient tissue cutting and ablation effect at a relatively low temperature.

[0036] After the ablation is completed, if it is necessary to aspirate the tissue residual liquid at the surgical site, the second handle 6 can be pulled out again. At this time, the negative electrode sleeve 3 forms an aspirating channel again, through which the residual tissue liquid that may exist at the surgical site can be aspirated, so that the surgical site is kept clean. After the aspiration is completed, further inspection and treatment of the surgical site can be performed to ensure the surgical effect.

[0037] During the entire surgical process, the breast ablation electrode exhibits many advantages. First, since the required temperature is low (40℃-70℃), the risk of damage to healthy tissue is reduced, and the safety of the surgery is improved. Second, the separation design of the positive electrode puncture part 1 and the negative electrode sleeve 3 makes it convenient to remove the positive electrode puncture part 1 for liquid aspiration and flushing operation after puncturing the target lesion, without the need for re-puncturing, thereby reducing the pain of the patient. In addition, after the ablation is completed, the positive electrode puncture part 1 can be removed again to aspirate the residual tissue liquid through the negative electrode sleeve 3, keeping the surgical site clean, which is conducive to the postoperative recovery of the patient.

[0038] In order to further ensure the practicability and reliability of the breast ablation electrode, a series of optimization and improvement can also be made. For example, materials with good electrical conductivity and corrosion resistance can be selected to make the positive electrode puncture part 1 and the negative electrode sleeve 3, so as to improve the service life of the electrode and the surgical effect. At the same time, the first insulating sleeve 2 and the second insulating sleeve 4 can be specially treated to enhance their insulation performance and wear resistance, ensuring the safety and reliability during the surgical process. In addition, the first handle 5 and the second handle 6 can be ergonomically designed to make them more consistent with the doctor's hand shape and usage habits, improving the convenience and comfort of the surgical operation.

[0039] In summary, the breast ablation electrode of the embodiment realizes efficient ablation of breast lesion tissue at low temperature through ingenious structural design and reasonable material selection, while having the functions of aspirating cystic hydrops and residual tissue liquid at the surgical site, providing a new, safer and more effective surgical means for the treatment of breast diseases.

[0040] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A breast ablation electrode, characterized in that, The application relates to a positive electrode puncture part (1), a first insulating sleeve (2), a negative electrode sleeve (3) and a second insulating sleeve (4) which are sequentially sleeved from inside to outside, the head of the positive electrode puncture part (1) is exposed from the front end of the first insulating sleeve (2), the front end of the first insulating sleeve (2) is exposed from the front end of the negative electrode sleeve (3), and the head of the negative electrode sleeve (3) is exposed from the front end of the second insulating sleeve (4). The rear ends of the negative electrode sleeve (3) and the second insulating sleeve (4) are fixed in a first handle (5), the rear ends of the positive electrode puncture part (1) and the first insulating sleeve (2) are fixed in a second handle (6), the first handle (5) and the second handle (6) are detachably connected so that the second handle (6) drives the positive electrode puncture part (1) and the first insulating sleeve (2) to be completely separated from the negative electrode sleeve (3), the rear end of the second handle (6) is respectively provided with a water inlet pipeline (7) and a connector (8), the water inlet pipeline (7) is communicated with the negative electrode sleeve (3) so as to flush tissue or extract tissue effusion through the negative electrode sleeve (3). A copper sheet (51) connected with the tail end of the negative electrode sleeve (3) is arranged in the first handle (5), and a spring needle (61) is arranged in the second handle (6).

2. The breast ablation electrode of claim 1, wherein, One wire of the connector (8) is electrically connected with the tail end of the positive electrode puncture part (1), and the other wire of the connector (8) is electrically connected with the spring needle (61), and when the first handle (5) and the second handle (6) are in the connected state, the spring needle (61) is in contact with the copper sheet (51) to be electrically connected with the negative electrode sleeve (3). A luer male joint (62) is arranged in the second handle (6) and communicated with the water inlet pipeline (7), a luer female joint (52) is arranged in the first handle (5), and the luer male joint (62) and the luer female joint (52) cooperatively form a liquid sealing pipeline.

3. The breast ablation electrode of claim 1, wherein, The most front end of the luer female joint (52) is provided with a sealing ring.

4. The breast ablation electrode of claim 3, wherein, The outer surface of the luer female joint (52) is provided with a thread, and the front end of the second handle (6) is internally provided with a thread.

5. The breast ablation electrode of claim 4, wherein, The head of the positive electrode puncture part (1) is in a triangular pyramid shape.

6. The breast ablation electrode according to any one of claims 1 to 5, wherein, ​

Images