Heating mechanism and vapor ablation apparatus

Abstract

The utility model relates to the field of minimally invasive surgery technology, specifically disclose a kind of heating mechanism and steam ablation equipment, heating mechanism is used to provide steam for steam ablation equipment, this heating mechanism includes water pipe and resistance wire, the material of water pipe is metal;Resistance wire is wound in the outer periphery of water pipe, resistance wire is communicated with external circuit and can produce heat, water pipe can absorb the heat generated by resistance wire;Resistance wire can generate alternating magnetic field and heat water pipe;Water pipe can at least heat the fluid passing through the inside of water pipe;At least one of resistance wire and water pipe is provided with insulating layer.The above-mentioned setting effectively improves steam production efficiency, improves operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of minimally invasive surgery technology, and in particular to a heating mechanism and a steam ablation device. Background Technology

[0002] Steam ablation is a new non-implantable endoscopic interventional technique. It uses an endoscope to insert a catheter into the lesion of a human organ, and steam acts on the diseased tissue through the catheter to repair the organ's function.

[0003] Existing steam ablation equipment produces steam by heating liquids such as distilled water, pure water, or saline through a heating wire. However, the heating wire has limited power, resulting in a long waiting time before surgery and affecting surgical efficiency.

[0004] Therefore, it is urgent to study a heating mechanism and steam melting equipment to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a heating mechanism and a steam ablation device to solve the problem that the long steam production time in the prior art affects the efficiency of surgery.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Heating mechanism, used to supply steam to the steam ablation equipment, includes:

[0008] A water pipe, wherein the water pipe is made of metal;

[0009] A resistance wire is wound around the outer circumference of the water pipe. The resistance wire is connected to an external circuit and can generate heat. The water pipe can absorb the heat generated by the resistance wire. The resistance wire can generate an alternating magnetic field and heat the water pipe. The water pipe can at least heat the fluid passing through its interior.

[0010] At least one of the resistance wire and the water pipe is provided with an insulating layer.

[0011] As an optional technical solution for the heating mechanism, the water pipe has a bend, at which a connected forward section and a reverse section are formed. The fluid flows in opposite directions in the forward section and the reverse section, and the resistance wires wound around the forward section and the reverse section have opposite winding directions; and / or

[0012] The heating mechanism also includes a container, in which the water pipe and the resistance wire are both fixed.

[0013] As an optional technical solution for the heating mechanism, the bending portion is provided with several, wherein,

[0014] Several of the aforementioned bending portions are arranged in a matrix and are either three-dimensional or planar.

[0015] As an optional technical solution for the heating mechanism, the water pipe has a spiral section, and the spiral section is provided in several parts. The resistance wires are wound in opposite directions on adjacent spiral sections.

[0016] Several of the spiral sections are spaced apart perpendicular to the flow direction of the fluid; and / or

[0017] The diameters of the plurality of said spiral portions increase sequentially from the inside out; and / or

[0018] The spiral portion is arc-shaped or polygonal.

[0019] As an optional technical solution for the heating mechanism, the inner and outer surfaces of the water pipe are provided with an insulating layer, and the outer periphery of the resistance wire is provided with an insulating layer.

[0020] As an optional technical solution for the heating mechanism, the heating mechanism includes a container, a water pipe passing through the container, and a portion of the pipe located inside the container having a notch, through which fluid flows out into the container, and the resistance wire is located inside the container; wherein,

[0021] The water pipe can heat the fluid flowing through it and the fluid between the water pipe and the container.

[0022] As an optional technical solution for the heating mechanism, the water pipe includes a first pipe and a second pipe, which are spaced apart and the gap between them forms the notch, and the resistance wire is wound around the first pipe.

[0023] As an optional technical solution for the heating mechanism, the first pipeline includes a main pipeline and an expansion section connected to each other, wherein the inner diameter of the expansion section is larger than the inner diameter of the main pipeline.

[0024] As an optional technical solution for the heating mechanism, the expanded section is cylindrical or cuboid in shape; or

[0025] The winding diameter of the resistance wire in the main circuit is smaller than the winding diameter in the bulging section.

[0026] A steam melting device includes a device body, a steam channel, and a heating mechanism as described in any of the above technical solutions. The heating mechanism is located in the device body, and the output end of the heating mechanism is connected to the input end of the steam channel.

[0027] The beneficial effects of this utility model are as follows:

[0028] This utility model provides a heating mechanism and a steam ablation device. The heating mechanism heats the water pipe directly after it is energized by winding a resistance wire around its outer circumference. The water pipe heats the fluid inside it. In addition, the resistance wire generates an alternating magnetic field to heat the water pipe after being energized, which causes the temperature of the water pipe to rise rapidly and heats the fluid inside to quickly generate steam, reducing the waiting time for surgery and improving the efficiency of surgery. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the heating mechanism in Embodiment 1 of this utility model;

[0030] Figure 2 This is a schematic diagram of the heating mechanism in Embodiment 2 of this utility model;

[0031] Figure 3 This is a schematic diagram of the heating mechanism in Embodiment 3 of this utility model;

[0032] Figure 4 This is a schematic diagram of the heating mechanism in Embodiment 4 of this utility model;

[0033] Figure 5 This is a schematic diagram of the heating mechanism in Embodiment 5 of this utility model;

[0034] Figure 6 This is a schematic diagram of the heating mechanism in Embodiment Six of this utility model;

[0035] Figure 7 This is a schematic diagram of the heating mechanism in Embodiment 7 of this utility model;

[0036] Figure 8 This is a schematic diagram of the heating mechanism in Embodiment 8 of this utility model;

[0037] Figure 9 This is a schematic diagram of the heating mechanism in Embodiment 9 of this utility model;

[0038] Figure 10 This is a schematic diagram of the heating mechanism in Embodiment 10 of this utility model;

[0039] Figure 11 This is a schematic diagram of the heating mechanism in Embodiment Eleven of this utility model;

[0040] Figure 12 This is a schematic diagram of the heating mechanism in Embodiment Twelve of this utility model;

[0041] Figure 13 This is a schematic diagram of the heating mechanism in Embodiment Thirteen of this utility model;

[0042] Figure 14This is a schematic diagram of the heating mechanism in Embodiment Fourteen of this utility model;

[0043] Figure 15 This is a schematic diagram of the heating mechanism in Embodiment 15 of this utility model.

[0044] In the picture:

[0045] X, first direction; Y, second direction; Z, third direction;

[0046] 10. Heating mechanism;

[0047] 100. Water pipe; 110. Bend; 111. Forward section; 112. Reverse section; 120. Spiral section; 130. Notch; 140. First pipeline; 141. Expansion section; 142. Main pipeline; 150. Second pipeline;

[0048] 200. Resistance wire;

[0049] 300. Container;

[0050] 400. Metal sheet. Detailed Implementation

[0051] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0055] like Figures 1 to 12 As shown, this embodiment provides a heating mechanism 10 for providing steam to the steam ablation device. The water pipe 100 is heated by the resistance wire 200 and the alternating magnetic field generated by the resistance wire 200 is combined to heat the water pipe 100, thereby improving the heating efficiency of the water pipe 100. This improves the efficiency of heating fluids such as distilled water, pure water or physiological saline and generating steam, thereby reducing surgical waiting time and improving surgical efficiency.

[0056] In some embodiments, the heating mechanism 10 includes a water pipe 100 and a resistance wire 200, wherein the water pipe 100 is made of metal; the resistance wire 200 is wound around the outer periphery of the water pipe 100, the resistance wire 200 is connected to an external circuit and can generate heat, and the water pipe 100 can absorb the heat generated by the resistance wire 200; the resistance wire 200 can generate an alternating magnetic field and heat the water pipe 100; the water pipe 100 can at least heat the fluid passing through the inside of the water pipe 100; at least one of the resistance wire 200 and the water pipe 100 is provided with an insulating layer.

[0057] The heating mechanism 10 heats the water pipe 100 directly after it is energized by winding a resistance wire 200 around its outer periphery. The water pipe 100 can then heat the fluid inside it. In addition, the resistance wire 200 generates an alternating magnetic field after being energized to heat the water pipe 100, causing its temperature to rise rapidly and heating the fluid inside to quickly generate steam. This reduces surgical waiting time and improves surgical efficiency.

[0058] It should be noted that the alternating magnetic field generated by the resistance wire 200 to heat the water pipe 100 is an induction heating method, which uses electromagnetic induction to heat an electrical conductor (usually a metal). This generates eddy currents in the metal, causing Joule heating due to resistance. In this embodiment, the water pipe 100 can be made of stainless steel.

[0059] In some embodiments, the water pipe 100 has a bend 110, at which the water pipe 100 includes a connected forward portion 111 and a reverse portion 112. The fluid flows in opposite directions in the forward portion 111 and the reverse portion 112, and the resistance wire 200 wound around the forward portion 111 and the reverse portion 112 has opposite winding directions. This arrangement increases the heating area, thereby improving heating efficiency; secondly, it allows for more uniform mixing during fluid reversal, thus improving the consistency of steam quality; and thirdly, the opposite winding directions cancel out the alternating magnetic field generated by the resistance wire 200, thereby reducing interference to external circuits and other electronic equipment in the operating room, and improving the safety of the equipment.

[0060] The structure of the water pipe 100 can be reasonably set according to the specific installation situation. In some embodiments, there are several bends 110, and the several bends 110 are arranged in a matrix and are three-dimensional or planar.

[0061] like Figure 2 As shown, in one embodiment of this invention, a plurality of bent portions 110 extend along a first direction X and are arranged in a matrix along a second direction Y and a third direction Z. The first direction X, the second direction Y, and the third direction Z are all perpendicular to each other.

[0062] like Figure 3 As shown, in the second embodiment of this example, a plurality of bent portions 110 extend along the first direction X and are arranged in a matrix along the first direction X and the second direction Y. The plurality of bent portions 110 spaced apart along the second direction Y form a bending group, and the two bending groups are arranged symmetrically.

[0063] like Figure 4 As shown, in the third embodiment of this example, a plurality of bent portions 110 extend along the first direction X and are arranged in a matrix along the first direction X and the second direction Y. A plurality of bent portions 110 spaced apart along the second direction Y form a bending group, and a plurality of bending groups spaced apart along the first direction X.

[0064] In some embodiments, a plurality of bending portions 110 are provided, and the plurality of bending portions 110 are arranged in a cylindrical shape. For example... Figure 5 As shown, by way of example, a plurality of bent portions 110 extend along a first direction X and are arranged around a rotation axis to form a cylindrical structure, the rotation axis being parallel to the first direction X.

[0065] like Figure 6 As shown, in another exemplary embodiment, a plurality of bent portions 110 extend along a first direction X and are arranged around a spiral to form a cylindrical structure, the plane of which the spiral is perpendicular to the first direction X.

[0066] In some embodiments, the water pipe 100 has a spiral portion 120. A plurality of spiral portions 120 are provided, and the resistance wire 200 is wound in opposite directions on adjacent spiral portions 120. The spiral portions 120 are arc-shaped.

[0067] like Figure 7 As shown, in the first embodiment of this example, a plurality of spiral portions 120 are spaced apart along a direction perpendicular to the flow direction of the fluid. In other words, a plurality of spiral portions 120 are spaced apart along a first direction X. The above structure can form a spiral tube, similar to a spring structure. The beneficial effects of providing spiral portions 120 can be compared with the effects of bending portions 110; in addition, spiral portions 120 are easy to process and facilitate the smoothness of fluid flow.

[0068] like Figure 8 As shown, two spiral tubes are arranged side by side to form a double spiral water pipe. Specifically, the two spiral tubes are arranged side by side along the second direction Y to form a double spiral water pipe.

[0069] like Figure 9 As shown, in the second embodiment of this example, a plurality of spiral portions 120 are provided, and the diameter of the plurality of spiral portions 120 increases sequentially from the inside to the outside. The above structure can form a single-layer tube, similar to a mosquito coil structure. Wherein, as... Figure 10 As shown, two single-layer tubes are stacked to form a double-layer tube.

[0070] In the third embodiment of this embodiment, a plurality of spiral portions 120 are provided, the diameter of the plurality of spiral portions 120 increases sequentially from the inside to the outside, and are spaced apart along the flow direction perpendicular to the fluid, that is, the plurality of spiral portions 120 are arranged in a conical shape.

[0071] like Figure 15 As shown, in the fourth embodiment of this example, the spiral portion 120 is a rectangle or a polygon with other numbers of sides. Exemplarily, several spiral portions 120 are arranged along the second direction Y, the plane containing the spiral portions 120 is parallel to the plane formed by the first direction X and the third direction Z, and the outer contours of the projections of several bent portions 110 along the second direction Y are rectangles or polygons with other numbers of sides. This arrangement facilitates the installation of the water pipe 100, prevents displacement, and is convenient for manufacturing and standardization.

[0072] In the fifth embodiment of this example, the spiral portion 120 is a rectangle or a polygon, and the outer contour of the projection of a plurality of spiral portions 120 in the first direction X or the third direction Z is a rectangle or a polygon with other numbers of sides.

[0073] To achieve better insulation, in some embodiments, the inner and outer surfaces of the water pipe 100 are provided with an insulating layer, and the outer periphery of the resistance wire 200 is provided with an insulating layer.

[0074] To improve steam generation efficiency, in some embodiments, the frequency range of the alternating current of the resistance wire 200 is 50Hz-300GHz, and the resistance wire 200 can generate an alternating magnetic field to heat the water pipe 100 made of a magnetic material (e.g., stainless steel). In some embodiments, the resistance wire 200 can generate an alternating current to directly heat the fluid.

[0075] In some embodiments, the heating mechanism 10 further includes a container 300, in which the water pipe 100 and the resistance wire 200 are fixed. This arrangement protects the water pipe 100 and the resistance wire 200 from damage by impact. The shape of the container 300 is adapted to the contour formed by the bending of the water pipe 100, improving aesthetics and ease of installation.

[0076] like Figure 11 and Figure 12 As shown, in some embodiments, the heating mechanism 10 includes a container 300, a water pipe 100 passing through the container 300, and a portion of the water pipe 100 located inside the container 300 having a notch 130, through which fluid flows into the container 300. A resistance wire 200 is located inside the container 300. The water pipe 100 can heat the fluid flowing through it and the fluid between the water pipe 100 and the container 300. This arrangement allows the fluid to absorb heat from both the water pipe 100 and the resistance wire 200, improving heating efficiency. Simultaneously, it reduces radiation from the resistance wire 200 to the container 300, lowering the container 300 temperature and improving equipment safety and lifespan. Finally, the fluid is heated in the container 300 to form steam, making steam temperature control easier and improving the convenience of steam temperature control.

[0077] It should be explained that when steam evaporates, it is in a near-water vapor mixture state, and its temperature is around 110℃.

[0078] Furthermore, the water pipe 100 is located in the middle of the container 300. This arrangement allows the fluid to better surround the water pipe 100, more effectively absorb the heat from the water pipe 100, and better reduce the temperature of the container 300.

[0079] In some embodiments, the water pipe 100 includes a first pipe 140 and a second pipe 150, which are spaced apart and form a gap 130 between them. A resistance wire 200 is wound around the first pipe 140, which serves as a water inlet pipe. The second pipe 150 serves as a steam outlet pipe.

[0080] This setup allows for the sequential installation of the first pipe 140 and the second pipe 150, reducing installation difficulty. In addition, the resistance wire 200 only heats the first pipe 140, avoiding secondary heating of the steam in the first pipe 140 and improving the controllability of the steam temperature.

[0081] In some embodiments, the first pipe 140 includes a main pipe 142 and an expanded section 141 connected to each other, wherein the inner diameter of the expanded section 141 is larger than the inner diameter of the main pipe 142. This arrangement increases the heating area, and the increased metal surface enhances the eddy current heating effect, thereby increasing the heating efficiency of the water pipe 100. The larger heating area and faster heating rate work together to greatly improve the steam generation efficiency.

[0082] like Figure 11 As shown, in some embodiments, the bulging section 141 is cylindrical. The cylindrical structure facilitates the winding of the resistance wire 200, improving heating uniformity. Figure 12 As shown, in some embodiments, the bulge section 141 is rectangular. This design facilitates processing and easy adaptation to standard parts, enabling modular production.

[0083] The winding diameter of the resistance wire 200 in the main pipe 142 is smaller than the winding diameter in the expansion section 141. This arrangement ensures that the fluid is effectively heated throughout its passage through the first pipe 140 within the container 300, thus improving heating efficiency.

[0084] like Figure 13 As shown, in some embodiments, the water pipe 100 can be replaced by a metal sheet 400, and the resistance wire 200 is wound around the outer periphery of the metal sheet 400. Both the metal sheet 400 and the resistance wire 200 are located in the container 300. Distilled water flows into the inlet of the container 300, and steam flows out from the outlet of the container 300. The metal sheet 400 can be rectangular and bent to increase heat transfer efficiency and uniformity.

[0085] like Figure 14 As shown, in some embodiments, the water pipe 100 may be omitted, and only a resistance wire 200 may be provided in the container 300. The resistance wire 200 has a rectangular (or circular) cross-section and is bent (or wound) in three-dimensional space to increase the heat dissipation area. Distilled water flows into the inlet of the container 300, and steam flows out from the outlet of the container 300.

[0086] This embodiment also provides a steam ablation device, including a device body, a steam channel and a heating mechanism 10 as described in the above embodiment. The heating mechanism 10 is located in the device body, and the output end of the heating mechanism 10 is connected to the input end of the steam channel.

[0087] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heating mechanism for supplying steam to a steam ablation device, characterized in that, include: Water pipe (100), the material of which is metal; A resistance wire (200) is wound around the outer periphery of the water pipe (100). The resistance wire (200) is connected to an external circuit and can generate heat. The water pipe (100) can absorb the heat generated by the resistance wire (200). The resistance wire (200) can generate an alternating magnetic field and heat the water pipe (100). The water pipe (100) can at least heat the fluid passing through its interior. At least one of the resistance wire (200) and the water pipe (100) has an insulating layer.

2. The heating mechanism according to claim 1, characterized in that, The water pipe (100) has a bend (110) at which a connected forward section (111) and a reverse section (112) are formed. The fluid flows in opposite directions in the forward section (111) and the reverse section (112), and the resistance wires (200) wound around the forward section (111) and the reverse section (112) are wound in opposite directions; and / or The heating mechanism (10) also includes a container (300), in which the water pipe (100) and the resistance wire (200) are both fixed.

3. The heating mechanism according to claim 2, characterized in that, The bending portion (110) is provided in several parts, among which, Several of the bending portions (110) are arranged in a matrix and are either three-dimensional or planar.

4. The heating mechanism according to claim 1, characterized in that, The water pipe (100) has a spiral section (120), and there are several spiral sections (120). The resistance wire (200) is wound in opposite directions on adjacent spiral sections (120). Several of the spiral sections (120) are spaced apart along a direction perpendicular to the flow direction of the fluid; and / or The diameters of the plurality of said spiral portions (120) increase sequentially from the inside out; and / or The spiral portion (120) is arc-shaped or polygonal.

5. The heating mechanism according to claim 1, characterized in that, The inner and outer surfaces of the water pipe (100) are provided with an insulating layer, and the outer periphery of the resistance wire (200) is provided with an insulating layer.

6. The heating mechanism according to any one of claims 1-5, characterized in that, The heating mechanism (10) includes a container (300), through which a water pipe (100) passes, and a portion of the water pipe inside the container (300) has a notch (130) through which fluid flows into the container (300), and the resistance wire (200) is located inside the container (300); wherein, The water pipe (100) can heat the fluid flowing through the water pipe (100) and the fluid between the water pipe (100) and the container (300).

7. The heating mechanism according to claim 6, characterized in that, The water pipe (100) includes a first pipe (140) and a second pipe (150), the first pipe (140) and the second pipe (150) are spaced apart, and the gap between them forms the notch (130), and the resistance wire (200) is wound around the first pipe (140).

8. The heating mechanism according to claim 7, characterized in that, The first pipeline (140) includes a main pipeline (142) and a bulging section (141) that are connected to each other. The inner diameter of the bulging section (141) is larger than the inner diameter of the main pipeline (142).

9. The heating mechanism according to claim 8, characterized in that, The bulging section (141) is cylindrical or cuboid; or The winding diameter of the resistance wire (200) in the main pipeline (142) is smaller than the winding diameter in the bulging section (141).

10. A steam melting device, characterized in that, It includes a main body of equipment, a steam passage and a heating mechanism as described in any one of claims 1-9, wherein the heating mechanism (10) is disposed on the main body of equipment and the output end of the heating mechanism (10) is connected to the input end of the steam passage.

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