High-response brushless driving internally-cooled microwave ablation needle

Abstract

The utility model provides a kind of high-response brushless drive internal cooling microwave ablation needle, including handle main body, and the installation is equipped with middle interface block in one end of handle main body, needle main body is installed in the inner wall of one end of middle interface block away from handle main body, handle main body is fixedly connected with microwave connecting block in one end away from middle interface block, the side of middle interface block is provided with auxiliary assembly, when installing needle main body, medical staff needs to pull out auxiliary block first, the second magnetic block of lower interface block lower end is separated from the first magnetic block in the bottom of needle main body connecting port, the adsorption connection state of both is released, needle main body is accurately inserted into middle interface block, medical staff can release auxiliary block, when needing to disassemble needle main body, medical staff also pulls out auxiliary block, after the second magnetic block is separated from the first magnetic block, the connection of needle main body and middle interface block is completely unlocked, medical staff can directly take out needle main body from middle interface block, complete disassembly operation, on the basis of convenient dismounting, the stability after installation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of microwave ablation technology, specifically a high-response brushless driven internally cooled microwave ablation needle. Background Technology

[0002] Microwave ablation, with its significant advantages of minimal invasiveness and rapid recovery, has become an important means of minimally invasive tumor treatment, and is widely used in the treatment of solid tumors such as liver cancer and lung cancer. The high-response brushless driven internally cooled microwave ablation needle, as the core device of microwave ablation therapy, plays a crucial role in improving treatment efficacy and reducing the risk of complications. However, in clinical practice and device maintenance, the disassembly and assembly of this ablation needle has revealed a prominent contradiction between quick disassembly and assembly and stable installation. In clinical surgical scenarios, time is of the essence, and quickly completing the needle installation is critical to securing treatment opportunities. To achieve rapid assembly and disassembly, some existing ablation needles adopt a simple plug-and-play design. While this significantly shortens the installation time, it is difficult to ensure the stability of the connection between the needle tip and the needle body. During microwave ablation, due to the continuous vibration of the needle body and the need for multi-angle operation within the tissue, loosening and detachment are very likely to occur. Conversely, ablation needles with complex snap-fit ​​connections can ensure a stable connection, but the installation process is cumbersome and time-consuming, which may delay the optimal treatment time. Therefore, it is difficult to strike a balance between rapid assembly and disassembly and stable connection in ablation needles.

[0003] To address the above problems, this invention proposes a high-response brushless driven internally cooled microwave ablation needle. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a high-response brushless driven internally cooled microwave ablation needle.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-response brushless driven internally cooled microwave ablation needle, including a needle handle body and a central connector block installed at one end of the needle handle body. A needle head body is installed on the inner wall of the end of the central connector block away from the needle handle body. A microwave connector block is fixedly connected to the end of the needle handle body away from the central connector block. An auxiliary component is provided on one side of the central connector block. The auxiliary component includes an auxiliary block resting on the outer wall of the central connector block. A movable rod is fixedly connected to one end of the auxiliary block. A lower connector block is fixedly connected to the end of the movable rod away from the auxiliary block. A connection port is opened on the outer wall of the needle head body. A first magnetic block is fixedly connected to the bottom of the connection port. A second magnetic block is fixedly connected to the lower end of the lower connector block.

[0006] Furthermore, the first magnetic block and the second magnetic block are matched in size, and the first magnetic block and the second magnetic block are attracted to each other by opposite poles.

[0007] Furthermore, the outer wall of the intermediate block is provided with a movable channel, and the movable rod is slidably connected to the inner wall of the movable channel.

[0008] Furthermore, the outer wall of the intermediate connecting block is provided with a reset assembly. The reset assembly includes a slide rod body fixedly connected to the lower wall of the auxiliary block, and a sliding groove formed on the outer wall of the intermediate connecting block. The lower end of the slide rod body is fixedly connected to a slider body, and the slider body is slidably connected to the inner wall of the sliding groove. An elastic element is sleeved on the outer wall of the slide rod body. One end of the elastic element is fixedly connected to the outer wall of the intermediate connecting block, and the other end of the elastic element is fixedly connected to the auxiliary block.

[0009] Furthermore, in the relaxed state of the elastic element, the first magnetic block and the second magnetic block are in contact with each other.

[0010] Furthermore, a sealing ring is fitted onto the outer wall of the lower block. The sealing ring is a component made of rubber, and the interior of the sealing ring has a hollow structure.

[0011] Compared with the prior art, the beneficial effects of this utility model include: When installing the needle body, medical personnel need to pull the auxiliary block outward first. The second magnetic block at the lower end of the lower connecting block separates from the first magnetic block at the bottom of the needle body connection port, releasing the adsorption connection between the two and creating space for the installation of the needle body. The needle body is then accurately inserted into the connecting block, and the medical personnel can release the auxiliary block. When it is necessary to disassemble the needle body, the medical personnel also pull the auxiliary block outward. After the second magnetic block separates from the first magnetic block, the connection between the needle body and the connecting block is completely unlocked. The medical personnel can directly remove the needle body from the connecting block to complete the disassembly operation. The operation is extremely convenient. It ensures the stability after installation while facilitating disassembly and assembly, and solves the problem of balancing quick disassembly and assembly and connection stability of ablation needles. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts.

[0013] in:

[0014] Figure 1 The schematic diagram shows an overall three-dimensional structure according to one embodiment of the present invention;

[0015] Figure 2 The schematic diagram shows an overall planar structure according to one embodiment of the present invention;

[0016] Figure 3The schematic diagram shows a structural diagram of an auxiliary component according to one embodiment of the present invention;

[0017] Figure 4 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 3 Enlarged diagram of point A.

[0018] The following components are labeled in the diagram: 1. Needle handle body; 2. Intermediate connector block; 3. Needle head body; 4. Microwave connector block; 5. Auxiliary component; 51. Auxiliary block; 52. Movable rod; 54. Lower connector block; 55. Connecting port; 56. First magnetic block; 57. Second magnetic block; 58. Reset component; 581. Slide rod body; 582. Sliding groove; 583. Slider body; 584. Elastic element; 59. Sealing ring. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0020] Please see Figures 1-4 To address the challenge of balancing rapid assembly / disassembly with secure connection of ablation needles, the following preferred technical solutions are provided:

[0021] A high-response brushless driven internally cooled microwave ablation needle includes a needle handle body 1. A mid-junction block 2 is installed at one end of the needle handle body 1. A needle head body 3 is installed on the inner wall of the end of the mid-junction block 2 away from the needle handle body 1. The needle head body 3 directly acts on the lesion tissue and is responsible for releasing microwave energy to achieve ablation treatment of the lesion. A microwave connection block 4 is fixedly connected to the end of the needle handle body 1 away from the mid-junction block 2. The microwave connection block 4 is used to connect to an external microwave generator to achieve efficient input and transmission of microwave energy. An auxiliary component 5 is provided on one side of the mid-junction block 2. The auxiliary component 5 enables convenient installation and stable connection of the needle body 3. The auxiliary component 5 includes an auxiliary block 51 that rests on the outer wall of the middle connecting block 2. One end of the auxiliary block 51 is fixedly connected to a movable rod 52. The movable rod 52 can slide smoothly in the movable channel opened on the outer wall of the middle connecting block 2. The end of the rod away from the auxiliary block 51 is fixedly connected to the lower connecting block 54. The outer wall of the needle body 3 has a connection port 55. The bottom of the connection port 55 is fixedly connected to a first magnetic block 56. The lower end of the lower connecting block 54 is fixedly connected to a second magnetic block 57. The two are matched in size and opposite in polarity.

[0022] When installing the needle body 3, pull the auxiliary block 51 outward to move the movable rod 52, which in turn moves the lower connecting block 54 synchronously, making room for the insertion of the needle body 3. At this time, insert the needle body 3 into the middle connecting block 2, release the auxiliary block 51, and under the action of the reset component 58, the auxiliary block 51 drives the lower connecting block 54 to reset. The second magnetic block 57 of the lower connecting block 54 and the first magnetic block 56 at the bottom of the connection port 55 are attracted and attached, using magnetic force to enhance the stability of the connection and prevent the needle from becoming loose or shifting during use. When it is necessary to disassemble the needle body 3, pull the auxiliary block 51 outward to separate the second magnetic block 57 of the lower connecting block 54 from the first magnetic block 56, releasing the attraction between the two. At this time, the needle body 3 can be directly removed.

[0023] The outer wall of the intermediate block 2 is provided with a reset assembly 58, which provides reset power for the auxiliary assembly 5. The reset assembly 58 includes a slide rod body 581 fixedly connected to the lower wall of the auxiliary block 51, and a sliding groove 582 opened in the outer wall of the intermediate block 2. The lower end of the slide rod body 581 is fixedly connected to a slider body 583, which can slide in the sliding groove 582 to provide guidance. An elastic element 584 is sleeved on the outer wall of the slide rod body 581. One end of the elastic element 584 is fixedly connected to the outer wall of the intermediate block 2, and the other end is fixedly connected to the auxiliary block 51. When the auxiliary block 51 is pulled outward, the elastic element 584 is stretched or compressed, storing elastic potential energy; after the auxiliary block 51 is released, the elastic element 584 releases the elastic potential energy, pushing the auxiliary block 51 to reset.

[0024] In addition, a sealing ring 59 is fitted onto the outer wall of the lower connecting block 54. The sealing ring 59 is made of rubber and has a hollow structure inside. The sealing ring 59 not only enhances the stability of the connection, but also plays a sealing role, effectively preventing impurities such as body fluids from entering the connection part, avoiding affecting the stability of the connection and causing internal corrosion, thereby ensuring the stable performance of the microwave ablation needle and extending its service life.

[0025] Specifically, when installing the needle body 3, medical personnel need to first pull the auxiliary block 51 outward. The auxiliary block 51 is fixedly connected to the movable rod 52. Therefore, pulling the auxiliary block 51 will drive the movable rod 52, causing it to slide within the movable channel on the outer wall of the intermediate connecting block 2. At the same time, the movable rod 52 drives the lower connecting block 54 to move synchronously. The second magnetic block 57 at the lower end of the lower connecting block 54 separates from the first magnetic block 56 at the bottom of the connection port 55 of the needle body 3, releasing their adsorption connection and creating space for the installation of the needle body 3. After accurately inserting the needle body 3 into the intermediate connecting block 2, the medical personnel release the auxiliary block 51. At this time, the elastic element 584 releases the elastic potential energy stored in the previous stretching, pushing the auxiliary block 51 to reset. The auxiliary block 51 drives the movable rod 52 and the lower connecting block 54 to reset together. The second magnetic block 57 at the lower end of the lower connecting block 54 and the first magnetic block 56 at the bottom of the needle body 3 connection port 55 attract and adhere to each other. The magnetic force further enhances the connection stability between the needle body 3 and the middle connecting block 2. When it is necessary to disassemble the needle body 3, the medical staff also pulls the auxiliary block 51 outward. The auxiliary block 51 drives the movable rod 52, so that the lower connecting block 54 overcomes the elasticity of the reset component 58 and moves along the movable channel of the middle connecting block 2. The second magnetic block 57 at the lower end of the lower connecting block 54 separates from the first magnetic block 56 at the bottom of the needle body 3 connection port 55, releasing the attraction connection between the two. After the second magnetic block 57 separates from the first magnetic block 56, the connection between the needle body 3 and the middle connecting block 2 is completely unlocked. The medical staff can directly remove the needle body 3 from the middle connecting block 2 to complete the disassembly operation. The operation is extremely convenient. It ensures the stability after installation while facilitating disassembly and assembly, and solves the problem of balancing quick disassembly and assembly and connection stability of the ablation needle.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-response brushless driven internally cooled microwave ablation needle, characterized in that: The device includes a needle handle body and a centering block mounted on one end of the needle handle body. A needle body is mounted on the inner wall of the end of the centering block away from the needle handle body. A microwave connecting block is fixedly connected to the end of the needle handle body away from the centering block. An auxiliary component is provided on one side of the centering block. The auxiliary component includes an auxiliary block resting on the outer wall of the centering block. A movable rod is fixedly connected to one end of the auxiliary block. A lower connecting block is fixedly connected to the end of the movable rod away from the auxiliary block. A connection port is opened on the outer wall of the needle body. A first magnetic block is fixedly connected to the bottom of the connection port. A second magnetic block is fixedly connected to the lower end of the lower connecting block.

2. The high-response brushless driven internally cooled microwave ablation needle according to claim 1, characterized in that: The first magnetic block and the second magnetic block are matched in size, and the first magnetic block and the second magnetic block are attracted to each other due to their opposite polarities.

3. The high-response brushless driven internally cooled microwave ablation needle according to claim 2, characterized in that: The outer wall of the intermediate block has a movable channel, and the movable rod is slidably connected to the inner wall of the movable channel.

4. The high-response brushless driven internally cooled microwave ablation needle according to claim 3, characterized in that: The outer wall of the intermediate connecting block is provided with a reset assembly. The reset assembly includes a slide rod body fixedly connected to the lower wall of the auxiliary block and a sliding groove formed on the outer wall of the intermediate connecting block. The lower end of the slide rod body is fixedly connected to a slider body. The slider body is slidably connected to the inner wall of the sliding groove. An elastic element is sleeved on the outer wall of the slide rod body. One end of the elastic element is fixedly connected to the outer wall of the intermediate connecting block, and the other end of the elastic element is fixedly connected to the auxiliary block.

5. The high-response brushless driven internally cooled microwave ablation needle according to claim 4, characterized in that: When the elastic element is relaxed, the first magnetic block and the second magnetic block are in contact with each other.

6. The high-response brushless driven internally cooled microwave ablation needle according to claim 5, characterized in that: The outer wall of the lower block is fitted with a sealing ring, which is a component made of rubber and has a hollow structure inside.

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