Heating apparatus for executing thermal ablation in intestinal tract

Abstract

The utility model discloses a heating instrument for executing thermal ablation in intestinal tracts, and relates to the technical field of medical instruments, the heating instrument comprises a sheath tube, a bag body and a liquid injection tube, an inner tube is arranged in the sheath tube, and a heating electrode and a temperature measuring electrode are arranged in the inner tube; the bag body is arranged on the outer wall of the far end of the sheath tube, a heating wire is arranged in the bag body, spiral electrode connectors are integrally formed at the two ends of the heating wire, and the electrode connectors are wrapped in the sheath tube and fixed to the heating electrode in a multi-point welding mode; the liquid injection tube is arranged at the near end of the sheath tube, a liquid injection channel is formed between the inner tube and the sheath tube, one end of the liquid injection channel is communicated with the liquid injection tube, and the other end of the liquid injection channel is communicated with the bag body. The spiral electrode connectors are arranged at the two ends of the heating wire, multi-point welding is formed, welding is facilitated, and the firmness of connection between the heating wire and the heating electrode can be effectively improved through a plurality of welding positions.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a heating device for performing thermal ablation in the intestine. Background Technology

[0002] Studies have found that applying thermal ablation to the intestinal mucosa at a safe temperature reduces its activity, which helps decrease the absorption of fat by the intestinal mucosa, thus achieving a weight loss effect for obese patients.

[0003] Existing medical devices for performing intestinal thermal ablation have the following drawbacks:

[0004] First: The resistance wire used to heat the water is soldered to the power supply wire with a single wire end. Because the wire end is small, it is not only inconvenient to solder, but it is also easy to fall off after soldering.

[0005] Second: During the expansion of the water-storage balloon, the inner tube inside the balloon, which is used to install the power cord, will bend and deform to a certain extent, affecting the arrangement of the power cord in the inner tube.

[0006] Third: The thermocouple used to monitor the water temperature inside the balloon is located on one side of the balloon, so the monitoring data is not accurate enough. Utility Model Content

[0007] The main objective of this application is to provide a heating device for performing thermal ablation in the intestine, aiming to solve the aforementioned technical problems.

[0008] The technical solution adopted in this application is as follows:

[0009] A heating device for performing thermal ablation in the intestine, comprising:

[0010] A sheath, wherein an inner tube is provided inside the sheath, and a heating electrode and a temperature measuring electrode are provided in the inner tube;

[0011] The capsule is disposed on the distal outer wall of the sheath. A heating wire is disposed inside the capsule. Both ends of the heating wire are integrally formed with spiral electrode connectors. The electrode connectors are covered inside the sheath and are welded and fixed to the heating electrode at multiple points.

[0012] The injection tube is located at the proximal end of the sheath, and an injection channel is formed between the inner tube and the sheath. One end of the injection channel is connected to the injection tube, and the other end of the injection channel is connected to the capsule.

[0013] Optionally, the inner tube located within the capsule has a spiral-shaped support guide wire arranged along the front-back direction of the capsule.

[0014] Optionally, a spiral linear thermocouple is provided on the outer wall of the inner tube along the front-back direction of the bladder, and the two ends of the linear thermocouple are connected to the temperature measuring electrode.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] First: The heating device proposed in this application for performing thermal ablation in the intestine is provided with spiral electrode connectors at both ends of the heating wire. The electrode connectors are wrapped inside the inner tube, and the heating electrode is inserted into the spiral electrode connectors to form multi-point welding. This not only facilitates welding, but also effectively increases the firmness of the connection between the heating wire and the heating electrode through multiple welding positions.

[0017] Second: The heating device proposed in this application for performing thermal ablation in the intestine, by setting a spiral support guide wire in the inner wall of the inner tube located in the capsule, reduces the compression, bending and deformation of the inner tube during the expansion of the capsule by water injection, so that the inner tube is kept as straight as possible and does not affect the cable arrangement in the inner tube.

[0018] Third: The heating device proposed in this application for performing thermal ablation in the intestine can continuously monitor the water temperature inside the capsule by setting a spiral linear thermocouple on the outer wall of the inner tube, which helps to improve the accuracy of water temperature monitoring. Attached Figure Description

[0019] Figure 1 A schematic diagram of a heating device for performing thermal ablation in the intestine, provided in an embodiment of this application;

[0020] Figure 2 This is a schematic cross-sectional view of the inner sac of a heating device for performing thermal ablation in the intestine, provided in an embodiment of this application.

[0021] Explanation of the labels in the attached drawings:

[0022] 1-Sheath, 2-Bag body, 3-Inner tube, 4-Water injection tube, 5-Water injection channel, 6-Heating wire, 7-Electrode connector, 8-Heating electrode, 9-Supporting guide wire, 10-Linear thermocouple, 11-Temperature measuring electrode. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] See attached document Figure 1 and Figure 2 As shown in the illustration, this application provides a heating device for performing thermal ablation in the intestine, comprising a sheath 1, a capsule 2, an inner tube 3, and an injection tube. The capsule 2 is disposed on the distal outer wall of the sheath 1, and the capsule 2 and the sheath 1 are an integral structure. The capsule 2 can be filled with liquid (such as water), allowing the capsule 2 to expand and adhere to the intestinal mucosa. The inner tube 3 is disposed inside the sheath 1, and a water injection channel 5 is formed between the sheath 1 and the inner tube 3. The injection tube is disposed on the proximal outer wall of the sheath 1, and one end of the water injection channel 5 is connected to the injection tube, and the other end is connected to the capsule 2. Water is injected into the capsule 2 through the injection tube and the water injection channel 5.

[0028] In the above description, the inner tube 3 is equipped with heating electrodes 8 and temperature measuring electrodes 11. The heating electrodes 8 and temperature measuring electrodes 11 are connected to corresponding components by power wires extending from the tail end of the inner tube 3. The capsule 2 is equipped with a heating wire 6. Both ends of the heating wire 6 are integrally formed with spiral electrode connectors 7. The electrode connectors 7 are sealed and enclosed in the inner tube 3. The heating electrodes 8 are inserted into the spiral electrode connectors 7, and the two are fixed by multi-point welding.

[0029] It is easy to understand that by setting spiral electrode connectors 7 at both ends of the heating wire 6, the electrode connectors 7 are wrapped inside the inner tube 3, and the heating electrode 8 is inserted into the spiral electrode connectors 7, forming a multi-point weld. This not only facilitates welding, but also the multiple welding positions can effectively increase the firmness of the connection between the heating wire and the heating electrode 8.

[0030] Furthermore, in this embodiment, see Figure 2 As shown, the inner tube 3 located inside the capsule 2 has a spiral-shaped support guide wire 9 arranged along the front-back direction of the capsule 2 within its tube wall. It is easy to imagine that without the support guide wire 9, during the expansion of the capsule 2 after filling with fluid, the capsule 2 expands radially quite significantly. Since the capsule 2 is fixedly connected to the inner tube 3 at both ends, when the capsule 2 expands radially, the ends of the inner tube 3 inside the capsule 2 are stretched, resulting in a bent state in the middle, which affects the arrangement of cables in the inner tube 3. Therefore, by setting the support guide wire 9, the support guide wire 9 can maintain the shape of the inner tube 3 to a certain extent, so that the capsule 2 relies mostly on its own deformation to complete the expansion during the expansion process, reducing the degree of bending deformation of the inner tube 3 and preventing it from significantly affecting the arrangement of cables in the inner tube 3.

[0031] At the same time, continue as Figure 2 As shown, a spiral linear thermocouple 10 is arranged on the outer wall of the inner tube 3 along the front-back direction of the capsule 2, and the two ends of the linear thermocouple 10 are connected to the temperature measuring electrode 11. It can be imagined that by arranging the spiral linear thermocouple 10 along the inner tube 3 inside the capsule 2, the water temperature inside the capsule 2 can be measured more accurately, thus improving the accuracy of monitoring.

[0032] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heating instrument for performing thermal ablation within the intestinal tract, characterized by, The application relates to a sheath tube, an inner tube arranged in the sheath tube, a heating electrode and a temperature measuring electrode arranged in the inner tube, a capsule arranged on the outer wall of the distal end of the sheath tube, a heating wire arranged in the capsule, two spiral electrode connectors integrally formed at the two ends of the heating wire, the electrode connectors being covered in the sheath tube and being fixed by multi-point welding with the heating electrode, a liquid injection pipe arranged at the proximal end of the sheath tube, a liquid injection channel being formed between the inner tube and the sheath tube, one end of the liquid injection channel being communicated with the liquid injection pipe, and the other end of the liquid injection channel being communicated with the capsule. The inner tube arranged in the capsule is provided with a spiral support guide wire in the tube wall along the front-back direction of the capsule. The outer wall of the inner tube is provided with a spiral linear thermocouple along the front-back direction of the capsule, and the two ends of the linear thermocouple are connected with the temperature measuring electrode. ​ 2. The heating apparatus for performing thermal ablation within the intestinal tract according to claim 1, wherein, ​ 3. A heating instrument for performing thermal ablation in the intestinal tract according to claim 1 or 2, characterized in that, ​

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