Rapid microwave ablation disposable needling instrument

Abstract

The utility model discloses a disposable needle for rapid microwave ablation, and relates to the technical field of microwave ablation needle treatment. The rapid microwave ablation disposable needle comprises a needle body shell, a connecting ring is connected to the bottom of the needle body shell, a limiting block is connected to one end of the connecting ring, a handle is arranged at the bottom of the needle body shell, a connecting base is connected to the top of the handle, a groove is formed in one end of the connecting base, the connecting ring is made of ceramic, and the limiting block is connected to the other end of the connecting ring. The limiting block connected with one end of the connecting ring is embedded into the groove, then the connecting ring is rotated, the needle body shell is connected with the handle, and when the needle is assembled and used for the first time, the connecting ring can normally play a connecting role. However, after use, if the needle body shell and the handle are tried to be detached, the connecting ring is made of a fragile ceramic material, so that the connecting ring can be broken when external force is slightly applied, and the requirement of disposable use is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to microwave ablation needle processing technical field, concretely is fast microwave ablation disposable needle. BACKGROUND

[0002] Microwave ablation therapy is a kind of treatment method with high efficiency, fast, uniform heating, heat coagulation thorough, convenient to use, safe to tumor tissue, has been widely used in clinical for many years.After microwave ablation needle is punctured to tumor lesion site percutaneously, microwave energy emitted by microwave ablation therapy instrument is transmitted to ablation needle through ablation therapy line and radiates to tumor lesion tissue, and microwave makes ion, polar water molecule in tissue rotate and vibrate, and mutual friction generates heat effect, and inactivates tumor cell by heat form, to reach tumor treatment purpose.Microwave ablation needle can make the temperature of microwave heat effect area reach dozens of degrees, even hundreds of degrees in the process of use, causes tumor coagulation, necrosis, to reach the treatment purpose of in situ inactivation of tumor.

[0003] Because microwave ablation needle will directly contact the tissue, blood of patient in the process of use, if reuse, it is difficult to guarantee that virus, bacteria, fungus and other pathogenic microorganisms carried by the last patient are completely removed in the process of cleaning and disinfection, thereby producing medical accident. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiency of prior art, the utility model provides fast microwave ablation disposable needle, solves the problem that because microwave ablation needle will directly contact the tissue, blood of patient in the process of use, if reuse, it is difficult to guarantee that virus, bacteria, fungus and other pathogenic microorganisms carried by the last patient are completely removed in the process of cleaning and disinfection, thereby producing medical accident.

[0005] To realize above-mentioned purpose, the utility model is realized through following technical scheme: fast microwave ablation disposable needle, including needle body shell, the bottom of needle body shell is connected with connecting ring, the one end of connecting ring is connected with limit block, the bottom of needle body shell is provided with handle, the top of handle is connected with connecting base, the one end of connecting base is provided with recess, and the connecting ring is ceramic material.

[0006] Preferably, the inside of needle body shell is provided with insulating layer, the inside of insulating layer is provided with metal shielding layer, and the inside of metal shielding layer is connected with copper.

[0007] Preferably, the top of needle body shell is connected with needle tip, and a plurality of microwave emission small holes are formed in the outside of needle tip.

[0008] Preferably, the needle tip is conical design, and the angle of cone is between 15-30 degrees.

[0009] The outer wall of the handle is connected with medical rubber, and one end of the handle is provided with an indicating lamp.

[0010] Preferably, the needle body shell is made of medical stainless steel.

[0011] The utility model provides a quick microwave ablation disposable needle tool.

[0012] Beneficial effects:

[0013] 1. The quick microwave ablation disposable needle tool, by connecting ring alignment connecting base, connecting ring one end connecting's limit block is embedded in the recess inside of the recess that base bottom has set up, subsequently rotates connecting ring, makes its needle body shell and handle connection, when the needle tool first assembly uses, connecting ring can normally play the connecting effect.But after use, if try to disassemble needle body shell and handle, because connecting ring is fragile ceramic material, slightly exert external force will lead to its breakage, the connecting ring fragment after breakage will scatter, and the integrity of connecting part is destroyed, makes the needle tool cannot assemble again, thereby guaranteeing the requirement of disposable use.

[0014] 2. The quick microwave ablation disposable needle tool, by the conical design of needle tip, this shape helps reduce puncture resistance, makes needle can more smoothly penetrate tissue to reach target ablation area.The end of needle tip is finely polished, makes it more sharp, simultaneously avoids the situation that burr etc. can damage surrounding tissue. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model provides a quick microwave ablation disposable needle tool's three-dimensional structure schematic diagram is proposed for the utility model;

[0016] Figure 2 The utility model provides a quick microwave ablation disposable needle tool's partial separation structure schematic diagram is proposed for the utility model;

[0017] Figure 3 The utility model provides a quick microwave ablation disposable needle tool's partial separation structure schematic diagram is proposed for the utility model;

[0018] Figure 4 The utility model provides a quick microwave ablation disposable needle tool's partial separation structure schematic diagram is proposed for the utility model.

[0019] In the drawing: 1, needle body shell;2, connecting ring;3, limit block;4, handle;5, connecting base;6, recess;7, insulating layer;8, metal shielding layer;9, copper;10, needle tip;11, microwave emission small hole;12, medical rubber;13, indicating lamp. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a technical scheme: fast microwave ablation disposable needle tool includes needle body shell 1, the bottom of needle body shell 1 is connected with connecting ring 2, one end of connecting ring 2 is connected with limiting block 3, the bottom of needle body shell 1 is provided with handle 4, the top of handle 4 is connected with connecting base 5, one end of connecting base 5 is provided with recess 6, connecting ring 2 is ceramic material, needle body shell 1 adopts medical stainless steel material.

[0022] In the use process of this embodiment, by aligning connecting ring 2 with connecting base 5, limiting block 3 connected to one end of connecting ring 2 is embedded in the inside of recess 6 opened in the bottom of connecting base 5, then rotating connecting ring 2 makes needle body shell 1 connected with handle 4, when the needle tool is used for the first time, connecting ring 2 can normally play a connecting role. But after use, if trying to disassemble needle body shell 1 and handle 4, since connecting ring 2 is a fragile ceramic material, slightly applying external force will cause it to break, the broken connecting ring 2 fragments will scatter, and the integrity of the connecting part is destroyed, so that the needle tool cannot be assembled again, thereby ensuring the requirement of one-time use, and needle body shell 1 adopts medical stainless steel material, which has high strength and good corrosion resistance, and can ensure that the needle body will not easily deform or be damaged during puncture. At the same time, the surface of stainless steel is finely polished to make it smooth, reducing the friction damage to the tissue.

[0023] Please refer to Figures 1-4 The inside of needle body shell 1 is provided with insulating layer 7, the inside of insulating layer 7 is provided with metal shielding layer 8, and metal copper 9 is connected to the inside of metal shielding layer 8.

[0024] In the inside of needle body shell 1, an insulating layer 7 is arranged along the length direction of the needle, the material of insulating layer 7 is polytetrafluoroethylene, which has excellent electrical insulation, high temperature resistance and chemical stability, to ensure that no electric leakage occurs during microwave transmission, and metal shielding layer 8 and metal copper 9 constitute a microwave transmission line, which can effectively transmit microwave energy from the equipment to the needle tip 10 part, reducing energy loss. Welding is adopted at the connection between the transmission line and the needle tip 10, to ensure the stability of the connection and good microwave transmission performance.

[0025] Please refer to Figures 1-4The top of the needle body shell 1 is connected with a needle tip 10, a plurality of microwave emission holes 11 are formed in the outer part of the needle tip 10, the needle tip 10 is designed in a conical shape, and the angle of the cone is between 15-30 degrees.

[0026] In the use process of the scheme, the plurality of microwave emission holes 11 uniformly distributed around the needle tip 10 are in communication with the center conductor metal copper 9 of the microwave transmission line. When the microwave energy is transmitted to the needle tip 10, the microwave is uniformly emitted to the surrounding tissue through the microwave emission holes 11, so as to realize the rapid and uniform ablation of the target area.

[0027] Please refer to Figures 1-4 The outer wall of the handle 4 is connected with a medical rubber 12, and one end of the handle 4 is provided with an indicator lamp 13.

[0028] In the use process of the scheme, the handle 4 is designed in an ergonomic design, and the shape is suitable for the doctor to hold. The medical rubber 12 connected to the outer wall increases the comfort and stability of holding, and the indicator lamp 13 is used to display the connection state of the needle and the equipment and the working state of the microwave emission.

[0029] In the use of the device by the related technicians in the utility model, first of all, the connecting ring 2 is aligned with the connecting base 5, the limiting block 3 connected to one end of the connecting ring 2 is embedded into the inside of the groove 6 formed in the bottom of the connecting base 5, then the connecting ring 2 is rotated, so that the needle body shell 1 is connected with the handle 4. When the needle is used for the first time, the connecting ring 2 can normally play a connecting role. However, after use, if the needle body shell 1 and the handle 4 are tried to be disassembled, the connecting ring 2 is broken due to the application of external force, the broken connecting ring 2 is scattered, and the integrity of the connecting part is damaged, so that the needle cannot be assembled again, thereby ensuring the requirement of one-time use. In the use process of the scheme, the plurality of microwave emission holes 11 uniformly distributed around the needle tip 10 are in communication with the center conductor metal copper 9 of the microwave transmission line. When the microwave energy is transmitted to the needle tip 10, the microwave is uniformly emitted to the surrounding tissue through the microwave emission holes 11, so as to realize the rapid and uniform ablation of the target area.

[0030] Meanwhile, the contents not described in detail in the present specification are all the prior art known to those skilled in the art.

[0031] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the statement "comprises a limited element" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the stated element.

[0032] Although the embodiments of the present application 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 thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fast microwave ablation disposable needle, comprising a needle body housing (1), characterized in that: The bottom of the needle body shell (1) is connected with a connecting ring (2), one end of the connecting ring (2) is connected with a limiting block (3), the bottom of the needle body shell (1) is provided with a handle (4), the top of the handle (4) is connected with a connecting base (5), one end of the connecting base (5) is provided with a groove (6), and the connecting ring (2) is made of ceramic material.

2. The rapid microwave ablation disposable needle of claim 1, wherein: The inside of the needle body shell (1) is provided with an insulating layer (7), the inside of the insulating layer (7) is provided with a metal shielding layer (8), and the inside of the metal shielding layer (8) is connected with a metal copper (9).

3. The rapid microwave ablation disposable needle of claim 1, wherein: The top of the needle body shell (1) is connected with a needle tip (10), and a plurality of microwave emission small holes (11) are formed in the outside of the needle tip (10).

4. The rapid microwave ablation disposable needle of claim 3, wherein: The needle tip (10) is designed in a conical shape, and the angle of the cone is between 15-30 degrees.

5. The rapid microwave ablation disposable needle of claim 1, wherein: The outer wall of the handle (4) is connected with medical rubber (12), and one end of the handle (4) is provided with an indicating lamp (13).

6. The rapid microwave ablation disposable needle of claim 1, wherein: The needle body shell (1) is made of medical stainless steel.

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