Ablation needle convenient for water circulation

Abstract

The utility model provides an ablation needle convenient for water circulation, which comprises an ablation needle head and an ablation handle, and a water guide component is arranged in the ablation handle, connected with a water circulation pipe of the ablation needle head and used for providing circulating water for the ablation needle head; the water guiding assembly comprises a horizontal cavity arranged on the water circulating pipe in a sleeving mode and an inclined cavity communicated with an external water pipe, the horizontal cavity and the inclined cavity are of an integrally-formed structure, and the water guiding assembly, the water circulating pipe and the external water pipe are bonded, fixed and sealed through glue. The ablation needle is simple in overall structure and low in cost, the overall structure is improved, the water guide assembly, the water circulation pipe and the external water pipe are bonded, fixed and sealed through glue, the problem of water flow blockage is avoided, and the safety of an operation is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to an ablation needle facilitating water circulation. Background Art

[0002] A microwave ablation needle generally includes an ablation needle and a cold circulation system. It is a relatively new treatment technique and belongs to a minimally invasive treatment method. It can treat tumors, cancers, nodules, and thyroid glands. Under the guidance of B-ultrasound or CT, the microwave needle penetrates into the tumor or nodule site. Under the action of the microwave field, high-speed movement generates heat, causing the temperature in the tumor to rise rapidly, so that the tumor or nodule necroses, achieving the treatment effect. This method can inhibit the spread of tumors.

[0003] However, for the ablation needle in the prior art, during the water circulation process, due to the unreasonable setting of the internal water cavity structure, the problem of water flow blockage often occurs. If it happens during the operation, it will cause very serious surgical accidents.

[0004] In view of this, the present utility model is particularly proposed. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the present utility model provides an ablation needle facilitating water circulation. The overall structure of the ablation needle is simple and the cost is low. By improving the overall structure, the water guiding component is fixedly bonded and sealed with the water circulation pipe and the external water pipe through glue, avoiding the problem of water flow blockage and increasing the safety of the operation.

[0006] The ablation needle facilitating water circulation provided by the present utility model includes an ablation needle head and an ablation handle. A water guiding component is arranged in the ablation handle and is connected with the water circulation pipe of the ablation needle head to provide circulating water for the ablation needle head.

[0007] The water guiding component includes a horizontal cavity sleeved on the water circulation pipe and an inclined cavity communicated with the external water pipe. The horizontal cavity and the inclined cavity are of an integrally formed structure. The water guiding component is fixedly bonded and sealed with the water circulation pipe and the external water pipe through glue. Specifically, the external water pipe includes a water inlet pipe and a water outlet pipe arranged side by side.

[0008] For the ablation needle in the prior art, due to the connection problem between the water circulation pipe of the ablation needle head and the external water pipe, the ablation needle always has the phenomenon of water flow blockage or water leakage during use, making the whole operation have safety risks. The present utility model precisely provides an ablation needle facilitating water circulation to solve this problem. By setting the water guiding component to connect the water circulation pipe and the external water pipe, and fixedly bonding and sealing them through glue, the phenomenon of water flow blockage or water leakage is avoided, and the safety of the operation is increased.

[0009] Preferably, the included angle between the horizontal cavity and the inclined cavity is 0 - 360°. Such a setting can adapt to the structures of various ablation needles.

[0010] Preferably, a boss is provided at one end of the horizontal cavity away from the ablation needle, and the boss abuts against the water circulation pipe to prevent water leakage. The provision of the boss enables the water circulation pipe to abut inside the horizontal cavity. In this way, the water flow inside the water circulation pipe will be stopped when it reaches the boss, avoiding the phenomenon of water leakage.

[0011] Preferably, the water circulation pipe includes an inlet water circulation pipe and an outlet water circulation pipe. The outlet water circulation pipe is sleeved outside the inlet water circulation pipe, and the outlet water circulation pipe is shorter than the inlet water circulation pipe.

[0012] Preferably, the inlet water circulation pipe and the outlet water circulation pipe are coaxially arranged. Such a setting facilitates uniform heat exchange of the circulating water.

[0013] Preferably, the ablation needle extends into the ablation handle, and a lock is provided at one end of the ablation handle close to the ablation needle for fixing the ablation needle. By setting the lock to lock the ablation needle and the ablation handle, the overall safety is improved.

[0014] Preferably, the ablation needle further includes a coaxial cable, and a radio frequency connector is provided at one end of the ablation handle away from the ablation needle. The coaxial cable extends to the end of the ablation handle and is connected to the radio frequency connector.

[0015] Preferably, a triangular inner cut is provided on the outside of the horizontal cavity on the side close to the water circulation pipe for convenient glue filling. Such a setting can increase the contact area between the glue and the horizontal cavity and the water circulation pipe, and enable the horizontal cavity and the water circulation pipe to be bonded more firmly.

[0016] It should be noted that there is a certain distance between the setting position of the triangular inner cut provided on the outside of the horizontal cavity of the present invention and the water storage position of the horizontal cavity. That is to say, the triangular inner cut provided by the present invention will not cause water leakage at the connection between the water circulation pipe and the horizontal cavity. At the same time, due to the certain distance, when applying glue, the glue will not flow into the water circulation pipe to cause water flow blockage.

[0017] Preferably, a friction-providing block is provided on the outer surface of the inclined cavity. By providing the block, the friction between the inclined cavity and the external water pipe is increased, so that the inclined cavity and the external water pipe are firmly connected.

[0018] Preferably, an ablation needle protection tube is sleeved outside the ablation needle. The ablation needle protection tube is used to protect the ablation needle and make the ablation needle convenient to insert and pull out.

[0019] An ablation needle facilitating water circulation according to the present utility model connects a water circulation pipe and an external water pipe through a water guiding component, and through the structural design of the specific water guiding component, it is fixedly bonded and sealed with glue to avoid water flow blockage and water leakage, thereby improving the overall reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as limiting the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components.

[0021] Figure 1 Schematic diagram of the overall structure of the ablation needle facilitating water circulation in an embodiment of the present utility model;

[0022] Figure 2 is Figure 1 enlarged view of part a;

[0023] Figure 3 Cross-sectional schematic diagram of the ablation needle tip of the present utility model;

[0024] Figure 4 Schematic diagram of the structure of the water guiding component with the horizontal cavity and the inclined cavity at 90° provided by the embodiment of the present utility model;

[0025] Figure 5 Schematic diagram of the overall structure of the ablation needle facilitating water circulation in a relatively preferred embodiment of the present utility model;

[0026] Figure 6 is Figure 5 enlarged view of part a;

[0027] Figure 7 Schematic diagram of the overall structure of the ablation needle facilitating water circulation in another relatively preferred embodiment of the present utility model.

[0028] Wherein: 1 - ablation needle tip; 101 - water circulation pipe; 1011 - inlet water circulation pipe; 1012 - outlet water circulation pipe; 102 - coaxial cable; 2 - ablation handle; 201 - ablation needle protection tube; 3 - water guiding component; 301 - horizontal cavity; 302 - inclined cavity; 4 - external water pipe; 401 - inlet pipe; 402 - outlet pipe; 5 - boss; 6 - triangular inner cut; 7 - clamping block; 8 - lock; 9 - RF connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the following described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments, and are only used to illustrate the present utility model, and should not be construed as limiting the scope of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model. For those embodiments where specific conditions are not indicated, they are carried out according to conventional conditions or conditions recommended by the manufacturer. For reagents or instruments where the manufacturer is not indicated, they are all conventional products that can be obtained through commercial purchase.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In order to more clearly illustrate the technical solution in the present utility model, it will be described below in the form of specific embodiments.

[0033] Embodiment

[0034] As Figure 1-7 shown, the ablation needle facilitating water circulation provided by the present utility model includes an ablation needle head 1 and an ablation handle 2. A water guiding assembly 3 is arranged in the ablation handle 2 and is connected to the water circulation pipe 101 of the ablation needle head 1 for providing circulating water for the ablation needle head 1. Specifically, referring to Figure 2 shown, the water guiding assembly 3 includes a horizontal cavity 301 sleeved on the water circulation pipe 101 and an inclined cavity 302 communicated with an external water pipe 4. The horizontal cavity 301 and the inclined cavity 302 are communicated to form the water guiding assembly 3 of the present utility model, and the horizontal cavity 301 and the inclined cavity 302 are of an integrally formed structure. AsFigure 1 , 5 As shown, the external water pipe 4 includes a water inlet pipe 401 and a water outlet pipe 402 arranged side by side. Preferably, the included angle between the horizontal cavity 301 and the inclined cavity 302 is 0 - 360°. This setting can adapt to the structures of various ablation needles 1 and achieve good adaptability. In a specific embodiment, referring to Figure 4 As shown, the water guiding assembly 3 can be in a case where the angle between the horizontal cavity 301 and the inclined cavity 302 is 90°, which can adapt to the case where the water holes of the ablation needle 1 are vertically arranged. During specific installation, the port of the horizontal cavity 301 of the water guiding assembly 3 is communicated with the water circulation pipe 101 of the ablation needle 1, and the port of the inclined cavity 302 of the water guiding assembly 3 is connected to the external water pipe 4, and is fixed and sealed by glue bonding, so as to avoid water flow blockage or water leakage, and increase the safety of the operation. Preferably, the water guiding assembly 3 can be selected to be made of plastic material.

[0035] Continuing to refer to Figure 2 As shown, in order to prevent water leakage when the water guiding assembly 3 is connected to the water circulation pipe 101 or glue from flowing into the cavity to block the pipeline when the water guiding assembly 3 is connected to the water circulation pipe 101 and the external water pipe 4, a boss 5 is provided at one end of the horizontal cavity 301 away from the ablation needle 1. The boss 5 abuts against the end of the water circulation pipe 101. By providing the boss 5, the water circulation pipe 101 can be abutted inside the horizontal cavity 301. In this way, the water flow inside the water circulation pipe 101 will be stopped when it reaches the boss 5, avoiding the phenomenon of water leakage. At the same time, a triangular inner incision 6 is provided on the outside of the horizontal cavity 301 on the side close to the water circulation pipe 101. This setting can increase the contact area between the glue and the horizontal cavity 301 and the water circulation pipe 101, and can make the bonding between the horizontal cavity 301 and the water circulation pipe 101 more reliable. Preferably, the setting position of the triangular inner incision 6 provided on the outside of the horizontal cavity 301 of the present utility model has a certain distance from the position where the horizontal cavity 301 stores water. That is to say, the triangular inner incision 6 provided by the present utility model will not cause water leakage when the water circulation pipe 101 is connected to the horizontal cavity 301. At the same time, because there is a certain distance, when applying glue, the glue will not flow into the water circulation pipe 101 to block the pipeline. In this embodiment, a block 7 providing friction is provided on the outer surface of the inclined cavity 302. By providing the block 7, the friction between the inclined cavity 302 and the external water pipe 4 is increased, so that the inclined cavity 302 and the external water pipe 4 are firmly connected.

[0036] Referring to Figure 1As shown, the ablation needle 1 extends into the ablation handle 2. A latch 8 is provided at one end of the ablation handle 2 close to the ablation needle 1 for fixing the ablation needle 1. Specifically, the ablation needle 1 of the present utility model includes a water circulation pipe 101 and a coaxial cable 102. The coaxial cable 102 is arranged inside the water circulation pipe 101. A radio frequency connector 9 is provided at one end of the ablation handle 2 away from the ablation needle 1. The coaxial cable 102 extends to the end of the ablation handle 2 and is connected to the radio frequency connector 9.

[0037] Preferably, the water circulation pipe 101 includes an inlet water circulation pipe 1011 and an outlet water circulation pipe 1012. The outlet water circulation pipe 1012 is sleeved outside the inlet water circulation pipe 1011. Preferably, the outlet water circulation pipe 1012 is shorter than the inlet water circulation pipe 1011.

[0038] Refer to Figure 3 As shown, the inlet water circulation pipe 1011 and the outlet water circulation pipe 1012 are coaxially arranged. This setting facilitates the uniform heating of the circulating water to achieve a better heat absorption effect.

[0039] During the specific installation and use process, two water guiding components 3 are provided to be respectively connected to the inlet water circulation pipe 1011 and the outlet water circulation pipe 1012, and are correspondingly connected to the external inlet water pipe and the external outlet water pipe, and are fixed and sealed by glue bonding. During specific use, water is introduced into the inlet water circulation pipe 1011 through the external inlet water pipe, then flows into the outlet water circulation pipe 1012 through the inlet water circulation pipe 1011, and finally flows out through the external outlet water pipe to realize the entire water cooling process. It should be noted that the water circulation path of the ablation needle of the present utility model is through the gap between the two circulation pipes.

[0040] Refer to Figure 5 、 7 As shown, an ablation needle protection tube 201 is sleeved outside the ablation needle 1. The ablation needle protection tube 201 is used to protect the ablation needle 1 and facilitate the insertion and extraction of the ablation needle.

[0041] In summary, the ablation needle of the present utility model that facilitates water circulation has a simple overall structure, low cost, good sealing performance, can ensure smooth water flow and avoid water leakage, and increases the safety of the operation.

[0042] Finally, it can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present utility model. However, the present utility model is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the principle and essence of the present utility model, and these modifications and improvements are also regarded as the protection scope of the present utility model.

Claims

1. An ablation needle that facilitates water circulation, characterized in that: It comprises an ablation needle and an ablation handle, wherein a water guide component is arranged in the ablation handle and is connected with a water circulation pipe of the ablation needle to provide circulating water for the ablation needle; The water guiding assembly includes a horizontal cavity sleeved on the water circulation pipe and an inclined cavity connected to an external water pipe, the external water pipe includes an inlet pipe and an outlet pipe arranged side by side; the horizontal cavity and the inclined cavity are an integrally formed structure, and the water guiding assembly is fixed and sealed to the water circulation pipe and the external water pipe by glue.

2. The ablation needle according to claim 1, characterized in that: The included angle between the horizontal cavity and the inclined cavity is 0-360°.

3. The ablation needle according to claim 1, characterized in that: A boss is provided at one end of the horizontal cavity away from the ablation needle, and the boss abuts against the water circulation pipe to prevent water leakage.

4. The ablation needle according to claim 1, characterized in that: The water circulation pipe comprises an inlet water circulation pipe and an outlet water circulation pipe. The outlet water circulation pipe is sleeved outside the inlet water circulation pipe. The outlet water circulation pipe is shorter than the inlet water circulation pipe.

5. The ablation needle according to claim 4, characterized in that: The water inlet circulation pipe is coaxially arranged with the water outlet circulation pipe.

6. The ablation needle according to claim 1, characterized in that: The ablation needle extends into the interior of the ablation handle, and a lock is provided at one end of the ablation handle close to the ablation needle for fixing the ablation needle.

7. The ablation needle according to claim 1, characterized in that: The ablation needle also includes a coaxial cable. A radio frequency connector is provided at one end of the ablation handle away from the ablation needle. The coaxial cable extends to the end of the ablation handle and is connected to the radio frequency connector.

8. The ablation needle according to claim 1, characterized in that: The outside of the horizontal cavity is provided with a triangular inner cutout on one side close to the water circulation pipe for easy filling with glue.

9. The ablation needle according to claim 1, characterized in that: The outer surface of the inclined cavity is provided with a block providing friction force.

10. The ablation needle according to claim 1, characterized in that: The outer sleeve of the ablation needle is provided with an ablation needle protection tube.

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