Bipolar electrocoagulation biopsy needle and biopsy device

Abstract

The utility model relates to the technical field of medical equipment, in particular to a bipolar electrocoagulation biopsy needle and a biopsy device.The bipolar electrocoagulation biopsy needle and the biopsy device.The bipolar electrocoagulation biopsy needle comprises a biopsy needle assembly which is provided with a sampling opening; the biopsy cannula is provided with a sliding cavity, the biopsy needle assembly is arranged in the sliding cavity in a penetrating mode, and a sampling hole is formed in the biopsy cannula; the electrocoagulation assembly is installed on the biopsy cannula, and the electrocoagulation end of the electrocoagulation assembly is located on the side wall of the sampling hole. According to the utility model, after biopsy sampling, electrocoagulation hemostasis can be quickly carried out on a sampling position, and the safety and efficiency of the biopsy process are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a bipolar electrocoagulation biopsy needle and biopsy device. Background Technology

[0002] A biopsy needle is a widely used instrument in clinical diagnosis and treatment. It is mainly used to obtain samples such as cells and tissues from inside the human body for pathological analysis, gene testing, etc., to help doctors diagnose the causes of diseases such as tumors, infections, or inflammation.

[0003] The choice of biopsy needle is crucial for medical diagnosis and treatment, especially for deep brain lesions. Open craniotomy is often highly invasive, leading to significant postoperative functional impairment and potentially serious complications such as hemiplegia, aphasia, or even coma. Therefore, using stereotactic guidance or neurosurgical navigation robots to perform deep brain tissue biopsies, clarifying the pathological nature, and carefully weighing the risks and benefits before determining the next steps for drug, gene, or surgical treatment is a more rational approach to the diagnosis and treatment of neurological diseases. However, intracranial lesions are often small, requiring biopsy needles with limited diameter. This makes it difficult to use the biopsy needles commonly used in general surgery and other departments, necessitating the development of new biopsy needles specifically for deep brain lesions. Furthermore, due to the varying blood supply to deep brain lesions, biopsy may cause bleeding in the deep lesion tissue, leading to neurological dysfunction. Small-diameter biopsy needles may be difficult to use for hemostasis, or may only allow for monopolar electrocoagulation through the biopsy needle channel, potentially causing thermal damage to the puncture channel and also resulting in neurological dysfunction.

[0004] Therefore, those skilled in the art are dedicated to developing a bipolar electrocoagulation biopsy needle and biopsy device that facilitates rapid bipolar electrocoagulation hemostasis at the sampling site after biopsy sampling, thereby improving the safety and efficiency of the biopsy process. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a bipolar electrocoagulation biopsy needle and biopsy device, which facilitates rapid electrocoagulation hemostasis at the sampling site after biopsy sampling, thereby improving the safety and efficiency of the biopsy process.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A bipolar electrocoagulation biopsy needle, comprising

[0008] A biopsy needle assembly having a sampling port;

[0009] A biopsy cannula, the biopsy cannula having a sliding cavity, the biopsy needle assembly passing through the sliding cavity, and the biopsy cannula having a sampling port;

[0010] An electrocoagulation assembly is mounted on the biopsy cannula, and an electrocoagulation end of the electrocoagulation assembly is located at the side wall of the sampling hole.

[0011] The beneficial effects of the above scheme are that the biopsy needle assembly is arranged in the biopsy cannula, during the sampling process, the sampling port and the sampling hole cooperate to sample the living tissue in a specific area, after the sampling of the biopsy needle assembly is completed and the biopsy needle assembly is extracted, the electrocoagulation assembly electrocoagulates the sampling part to stop bleeding, reduces bleeding at the sampling site, and improves the safety and efficiency of the biopsy process.

[0012] During the sampling process, the biopsy cannula is always inserted into the sampling site, thereby avoiding secondary insertion and reducing secondary injury to the patient.

[0013] On the basis of the above technical scheme, the utility model further can make improvement as follows.

[0014] Further, the biopsy needle assembly comprises a sampling needle body and a handle, and the sampling port is arranged on the sampling needle body.

[0015] The beneficial effects of the above further scheme are that the sampling needle body is used for insertion into the patient's body for sampling, and the handle facilitates the medical staff to hold the sampling needle body.

[0016] Further, the end of the sampling needle body is arc-shaped.

[0017] The beneficial effects of the above further scheme are that the end of the sampling needle body is arc-shaped, which facilitates the insertion of the sampling needle body into the patient's body and reduces scratches.

[0018] Further, the sampling port has a first sampling end and a second sampling end, and the first sampling end and the second sampling end are oppositely arranged.

[0019] The beneficial effects of the above further scheme are that the oppositely arranged first sampling end and second sampling end facilitate the cooperation with the sampling hole to quickly sample the tissue of a specific part of the patient.

[0020] Further, a holding portion is connected to the end of the biopsy cannula and the side opposite to the sampling hole.

[0021] The beneficial effects of the above further scheme are that the holding portion facilitates the holding of the biopsy cannula.

[0022] Further, the electrocoagulation assembly comprises an electrocoagulation positive electrode and an electrocoagulation negative electrode, the electrocoagulation positive electrode and the electrocoagulation negative electrode are oppositely arranged and respectively located on both sides of the sampling hole, the electrocoagulation positive electrode and the electrocoagulation negative electrode are both connected with wires, and the wires extend out of the holding portion and are connected with an electrocoagulation control device.

[0023] The beneficial effect of the further scheme is that the electrocoagulation control device is used to pass appropriate positive current and negative current to the electrocoagulation positive electrode and the electrocoagulation negative electrode respectively, and blood is coagulated and stopped at a specific part of a patient through electrocoagulation, so that bleeding and exudation are reduced.

[0024] A bipolar electrocoagulation biopsy device comprises the bipolar electrocoagulation biopsy needle as described above. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a specific embodiment structure schematic view of the bipolar electrocoagulation biopsy needle of the utility model.

[0026] Figure 2 It is a specific embodiment structure schematic view of the biopsy cannula of the utility model.

[0027] Figure 3 It is a specific embodiment structure schematic view of the biopsy cannula of the utility model.

[0028] Figure 4 It is a specific embodiment structure schematic view of the biopsy needle assembly of the utility model.

[0029] In the drawings, the components represented by each reference numeral are listed as follows:

[0030] 1, biopsy needle assembly; 2, sampling port; 3, biopsy cannula; 4, sliding cavity; 5, sampling hole; 6, electrocoagulation assembly; 7, sampling needle body; 8, handle; 9, first sampling end; 10, second sampling end; 11, holding part; 12, electrocoagulation positive electrode; 13, electrocoagulation negative electrode; 14, wire. DETAILED DESCRIPTION

[0031] The principles and features of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0032] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited.

[0034] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through the indirect connection of intermediate medium, can be the communication or the interaction of two elements of two elements inside, unless another definite limitation. For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0035] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, a bipolar electrocoagulation biopsy needle comprises

[0036] a biopsy needle assembly 1, the biopsy needle assembly 1 has a sampling port 2;

[0037] a biopsy sleeve 3, the biopsy sleeve 3 has a sliding cavity 4, the biopsy needle assembly 1 is arranged in the sliding cavity 4, and the biopsy sleeve 3 has a sampling hole 5;

[0038] an electrocoagulation assembly 6, the electrocoagulation assembly 6 is mounted on the biopsy sleeve 3, and the electrocoagulation end of the electrocoagulation assembly 6 is located on the side wall of the sampling hole 5.

[0039] In the utility model, the biopsy needle assembly 1 is arranged in the biopsy sleeve 3, in the sampling process, the sampling port 2 cooperates with the sampling hole 5 to sample the living tissue in a specific area, after the biopsy needle assembly 1 is sampled and extracted, the electrocoagulation assembly 6 electrocoagulates the sampling part to stop bleeding, reduces the bleeding of the sampling part, improves the safety and efficiency of the biopsy process, and the biopsy sleeve 3 is always inserted into the sampling part in the sampling process, so that secondary insertion is avoided, and the secondary injury to the patient is reduced.

[0040] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, in some embodiments, the biopsy needle assembly 1 comprises a sampling needle body 7 and a handle 8, the sampling needle body 7 is in solid cylindrical type, can be made of stainless steel, and the sampling port 2 is arranged on the sampling needle body 7. Specifically, the sampling port 2 has a first sampling end 9 and a second sampling end 10, the first sampling end 9 and the second sampling end 10 both have sharp knife edges, and the first sampling end 9 and the second sampling end 10 are oppositely arranged. In order to facilitate the sampling needle body 7 to be quickly inserted into the patient's body and reduce the scratch of the end of the sampling needle body 7 to the patient, the end of the sampling needle body 7 is in arc shape.

[0041] As Figure 1 , Figure 2 and Figure 3As shown, in another embodiment, the biopsy cannula 3 is connected with a holding portion 11 at the end and opposite to the sampling hole 5, the holding portion 11 is in a cylindrical shape, and the holding portion 11 is provided with anti-skid lines on the outer periphery.

[0042] In the embodiment, the electrocoagulation assembly 6 comprises an electrocoagulation positive electrode 12 and an electrocoagulation negative electrode 13, the electrocoagulation positive electrode 12 and the electrocoagulation negative electrode 13 are both in a spherical shape at the end, the electrocoagulation positive electrode 12 and the electrocoagulation negative electrode 13 are oppositely arranged and respectively located at both sides of the sampling hole 5, the electrocoagulation positive electrode 12 and the electrocoagulation negative electrode 13 are both connected with a wire 14, the wire 14 is located in the wall of the biopsy cannula 3, and the wire 14 extends out of the holding portion 11 and is connected with an electrocoagulation control device (not shown in the figure), the electrocoagulation control device is used for respectively inputting appropriate positive current and negative current to the electrocoagulation positive electrode 12 and the electrocoagulation negative electrode 13, when the high-frequency current passes through the biological tissue, due to the resistance of the tissue, the current generates heat in the tissue, the heat can make the water in the tissue evaporate, leading to the denaturation and coagulation of the protein, so as to form a coagulation layer, at the same time, the heat generated by the current passing through the tissue can make the protein of the blood vessel wall and the surrounding tissue denature, the denaturation leads to the change of the tissue structure, the blood vessel wall becomes rough and adheres to each other, so as to stop bleeding.

[0043] The utility model also provides a bipolar electrocoagulation biopsy device, including the bipolar electrocoagulation biopsy needle as described above.

[0044] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0045] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bipolar electrocautery biopsy needle, characterized by: The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); 2. The bipolar electrocautery biopsy needle of claim 1, wherein: The biopsy needle assembly (1) comprises a sampling port (2); 3. The bipolar electrocautery biopsy needle of claim 2, wherein: The biopsy needle assembly (1) comprises a sampling port (2); 4. The bipolar electrocautery biopsy needle of claim 1, wherein: The biopsy needle assembly (1) comprises a sampling port (2); 5. The bipolar electrocautery biopsy needle of claim 1, wherein: The biopsy needle assembly (1) comprises a sampling port (2); 6. The bipolar electrocautery biopsy needle of claim 5, wherein: The biopsy needle assembly (1) comprises a sampling port (2); 7. A bipolar electrocautery biopsy device, characterized by: The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1) comprises a sampling port (2); The biopsy needle assembly (1

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