Catheter of steam ablation medical equipment and steam ablation medical equipment
By designing flexible parts and elastic enhanced suits in the ducts of steam ablation medical equipment, the problem of deformation of the catheter due to thermal expansion is solved, and the stability of the catheter structure and the improvement of the steam transportation effect.
Patent Information
- Application Number
- CN202420958049.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The conduits of existing steam ablation medical equipment are prone to deformation due to thermal expansion during the high-temperature water vapor transport process, affecting the steam transport effect.
Design a duct structure that includes a catheter body and elastic enhancement set. The catheter body is flexible. The elastic enhancement sleeve is set on the outside of the catheter body. It is connected by a sealing glue. And deformed.
Effectively prevent the deformation of the duct due to thermal expansion, ensure the unchanged structure of the catheter, enhance the structural strength of the catheter, and avoid affecting the transfer effect of the steam. At the same time, the structure is simple, convenient to manufacture, low cost, and easy to install.
Smart Images
Figure CN222398729U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steam ablation medical treatment, in particular to a catheter of steam ablation medical equipment and steam ablation medical equipment. Background Art
[0002] Steam ablation technology heats sterile water to about 103°C to turn it into steam, and then delivers the steam to the target tissue through the treatment device. When the 103°C steam is delivered through the catheter, the high-temperature steam will expand in the catheter, causing the catheter to deform, affecting the delivery effect of the steam. Utility Model Content
[0003] The utility model provides a catheter of a steam ablation medical device and a steam ablation medical device, which are used to solve one of the defects in the prior art. The catheter body can be effectively prevented from being deformed due to thermal expansion. After the catheter body is deformed, the deformation recovery can be completed as soon as possible under the action of the elastic reinforcement sleeve, so as to ensure that the structural shape of the catheter body itself remains unchanged. Therefore, the elastic reinforcement sleeve can enhance the structural strength of the catheter body and avoid affecting the steam delivery effect.
[0004] The utility model provides a catheter of a steam ablation medical device, comprising a catheter body and an elastic reinforcement sleeve, wherein the catheter body is a flexible member, the elastic reinforcement sleeve is sleeved on the outside of the catheter body, and the inner wall of the elastic reinforcement sleeve is connected to the outer wall of the catheter body.
[0005] According to the catheter of a steam ablation medical device provided by the utility model, the catheter body and the elastic reinforcement sleeve are coaxially arranged.
[0006] According to the catheter of a steam ablation medical device provided by the utility model, the gap distance between the outer wall of the catheter body and the inner wall of the elastic reinforcement sleeve is less than or equal to 0.2 mm.
[0007] According to the catheter of a steam ablation medical device provided by the utility model, the gap between the inner wall of the elastic reinforcement sleeve and the outer wall of the catheter body is filled with sealant.
[0008] According to the catheter of a steam ablation medical device provided by the utility model, the elastic reinforcement sleeve includes a spring, and the catheter body is penetrated inside the spring.
[0009] According to the catheter of a steam ablation medical device provided by the utility model, the spring is a stainless steel coil spring.
[0010] According to the catheter of a steam ablation medical device provided by the utility model, the inner diameter of the catheter body is 1.2 mm, the outer diameter is 3.2 mm to 6.2 mm, and the outer diameter of the elastic reinforcement sleeve is 3.4 mm to 6.4 mm.
[0011] The utility model also provides a steam ablation medical device, comprising a steam generating component, a steam transmission tube and a catheter of the steam ablation medical device as described above, wherein the steam generating component, the catheter of the steam ablation medical device and the steam transmission tube are connected in sequence.
[0012] According to the steam ablation medical device provided by the utility model, the catheter body and the steam transmission tube are fastened and connected via a first clamp.
[0013] According to the steam ablation medical device provided by the utility model, the catheter body and the steam generating component are fastened and connected via a second clamp.
[0014] The catheter of the steam ablation medical device provided by the utility model is provided with an elastic reinforcement sleeve on the outer side of the catheter body, and the catheter body and the elastic reinforcement sleeve are fixed as a whole. The catheter body is a flexible structure with certain bending and deformation capabilities. The elastic reinforcement sleeve also has elastic deformation and bending capabilities and can bend and deform along with the catheter body.
[0015] The deformation ability of the elastic reinforcement sleeve is weaker than that of the catheter body. The outer wall of the catheter body can limit the deformation of the catheter body. When high-temperature steam passes through the catheter body, the catheter body is constrained by the elastic reinforcement sleeve, which can effectively prevent the catheter body from being deformed due to thermal expansion. After the catheter body is deformed, it can complete the deformation recovery as soon as possible under the action of the elastic reinforcement sleeve to ensure that the structural shape of the catheter body itself remains unchanged. Therefore, the elastic reinforcement sleeve can enhance the structural strength of the catheter body and avoid affecting the steam transportation effect.
[0016] In addition, the elastic reinforcing sleeve is directly sleeved on the outer side of the catheter body, which has a simple structure, is easy to manufacture, has low cost, and is easy to install.
[0017] In addition to the technical problems solved by the utility model, the technical features of the technical solutions constituted, and the advantages brought about by the technical features of these technical solutions described above, other technical features of the utility model and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1It is a schematic diagram of the structure of a catheter of a steam ablation medical device according to an embodiment of the utility model;
[0020] Figure 2 It is a structural schematic diagram of a catheter body of a catheter of a steam ablation medical device according to an embodiment of the utility model;
[0021] Figure 3 It is a schematic structural diagram of an elastic reinforcing sleeve of a catheter of a steam ablation medical device according to an embodiment of the utility model;
[0022] Figure 4 It is a schematic structural diagram of a steam ablation medical device according to an embodiment of the utility model.
[0023] Reference numerals:
[0024] 100, catheter body; 200, elastic reinforcement sleeve; 300, sealant; 400, steam transmission pipe; 500, steam generating component; 600, first clamp; 700, second clamp; 800, catheter. DETAILED DESCRIPTION
[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0026] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0029] In addition, in the description of the embodiments of the present utility model, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more, and "several", "several roots", and "several groups" mean one or more.
[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the catheter of the steam ablation medical device provided in the embodiment of the utility model includes a catheter body 100 and an elastic reinforcement sleeve 200. The catheter body 100 is a flexible part, and the elastic reinforcement sleeve 200 is sleeved on the outside of the catheter body 100. The inner wall of the elastic reinforcement sleeve 200 is connected to the outer wall of the catheter body 100.
[0032] The catheter of the steam ablation medical device of the embodiment of the utility model is provided with an elastic reinforcement sleeve 200 on the outer side of the catheter body 100, and the catheter body 100 and the elastic reinforcement sleeve 200 are fixed as a whole. The catheter body 100 is a flexible structure with certain bending and deformation capabilities. The elastic reinforcement sleeve 200 also has elastic deformation and bending capabilities and can bend and deform along with the catheter body 100.
[0033] The deformation ability of the elastic reinforcement sleeve 200 is weaker than that of the catheter body 100. The outer wall of the catheter body 100 can limit the deformation of the catheter body 100. When high-temperature steam passes through the catheter body 100, the catheter body 100 is constrained by the elastic reinforcement sleeve 200, which can effectively prevent the catheter body 100 from being deformed due to thermal expansion. After the catheter body 100 is deformed, it can complete the deformation recovery as soon as possible under the action of the elastic reinforcement sleeve 200 to ensure that the structural shape of the catheter body 100 itself remains unchanged. Therefore, the elastic reinforcement sleeve 200 can enhance the structural strength of the catheter body 100 and avoid affecting the steam transportation effect.
[0034] In addition, the elastic reinforcing sleeve 200 is directly sleeved on the outer side of the catheter body 100, which has a simple structure, is easy to manufacture, has low cost, and is easy to install.
[0035] In this embodiment, the catheter body 100 is formed by extrusion of medical-grade silicone.
[0036] According to an embodiment provided by the utility model, the catheter body 100 is coaxially arranged with the elastic reinforcement sleeve 200. In this embodiment, in order to ensure the protective effect of the elastic reinforcement sleeve 200 on the catheter body 100, the catheter body 100 and the elastic reinforcement sleeve 200 are coaxially arranged so that the outer wall of the catheter body 100 and the inner wall of the elastic reinforcement sleeve 200 are at the same distance at each position, ensuring that the elastic reinforcement sleeve 200 applies force to the catheter body 100 evenly and protects it comprehensively.
[0037] According to an embodiment provided by the utility model, the gap distance between the outer wall of the catheter body 100 and the inner wall of the elastic reinforcement sleeve 200 is less than or equal to 0.2mm. In this embodiment, there is a gap of a certain distance between the catheter body 100 and the elastic reinforcement sleeve 200, and the width of the gap in the radial direction of the catheter is 0~0.2mm. When the catheter body 100 and the elastic reinforcement sleeve 200 are coaxially arranged, the difference between the outer diameter radius of the catheter body 100 and the inner diameter radius of the elastic reinforcement sleeve 200 is a maximum of 0.1mm. When the catheter body 100 and the elastic reinforcement sleeve 200 are not coaxially arranged, that is, the catheter body 100 is offset to one side of the elastic reinforcement sleeve 200, the maximum width of the gap is 0.2mm.
[0038] According to an embodiment provided by the utility model, the gap between the inner wall of the elastic reinforcement sleeve 200 and the outer wall of the catheter body 100 is filled with sealant 300. In this embodiment, the connection between the elastic reinforcement sleeve 200 and the catheter body 100 is achieved through the sealant 300, that is, the sealant 300 is filled in the gap between the elastic reinforcement sleeve 200 and the catheter body 100 as an adhesive, which can not only ensure the connection strength between the elastic reinforcement sleeve 200 and the catheter body 100, but also improve the sealing effect of the catheter.
[0039] In this embodiment, the sealant 300 may be silicone sealant 300. In other embodiments, there may be no gap between the elastic reinforcing sleeve 200 and the catheter body 100, and the elastic reinforcing sleeve 200 may be fixed to the outer wall of the catheter body 100 by friction or by tightening on the catheter body 100.
[0040] According to an embodiment provided by the utility model, the elastic reinforcing sleeve 200 includes a spring, and the catheter body 100 is arranged inside the spring. In this embodiment, the elastic reinforcing sleeve 200 uses a spring, and a through hole is constructed inside the spring member, and the catheter body 100 passes through the through hole. The spring has a certain elasticity and deformation ability, which ensures that it conforms to the structural shape of the catheter body 100 while also being able to show a protective reinforcement effect on the catheter body 100.
[0041] According to an embodiment of the utility model, the spring is a stainless steel coil spring. In this embodiment, the spring is a stainless steel coil spring, which is formed by stainless steel spring wire and used as a metal elastic body to enhance the strength of the catheter body 100. Stainless steel has structural strength and hardness, and is also corrosion-resistant and wear-resistant.
[0042] In other embodiments, the spring may also be a wave spring, and may be in a mesh structure on the outside of the catheter body 100 to wrap the catheter body 100. The spring may be made of not only metal materials but also polymer materials.
[0043] According to an embodiment provided by the utility model, the inner diameter of the catheter body 100 is 1.2 mm, the outer diameter is 3.2 mm to 6.2 mm, and the outer diameter of the elastic reinforcement sleeve 200 is 3.4 mm to 6.4 mm. In this embodiment, the inner diameter of the catheter body 100 is 1.2 mm, the outer diameter is 3.2 mm to 6.2 mm, the inner diameter of the elastic reinforcement sleeve 200 is 1.2 to 1.4 mm, and the outer diameter is 3.4 mm to 6.4 mm.
[0044] The steam ablation medical device provided by the present invention is described below. The steam ablation medical device described below and the catheter 800 of the steam ablation medical device described above can correspond to each other.
[0045] like Figure 4 As shown, an embodiment of the utility model also provides a steam ablation medical device, including a steam generating component 500, a steam transmission tube 400 and a catheter 800 of the steam ablation medical device as in the above embodiment, wherein the steam generating component 500, the catheter 800 of the steam ablation medical device and the steam transmission tube 400 are connected in sequence.
[0046] In the steam ablation medical device of the embodiment of the utility model, the air outlet of the steam generating component 500 is connected to one end of the catheter 800, and the other end of the catheter 800 is connected to the steam transmission tube 400, so that the enhanced catheter 800 can be assembled into the steam ablation medical device. The water vapor generated by the steam generating component 500 is transported to the steam transmission tube 400 through the catheter 800. During the water vapor transmission process, the catheter 800 of this embodiment can effectively prevent deformation of the tube body caused by thermal expansion.
[0047] The measured data of the dimensions of the conduit 800 during the water vapor delivery process are shown in Table 1 below.
[0048] Table 1
[0049] catheter Inner diameter of the conduit (before steam is passed) Inner diameter of the conduit (after passing steam) Deformation state determination 1 1.22 1.22 Undeformed 2 1.23 1.23 Undeformed 3 1.22 1.22 Undeformed 4 1.22 1.24 Slight deformation 5 1.23 1.23 Undeformed 6 1.23 1.23 Undeformed
[0050] According to an embodiment provided by the utility model, the duct body 100 is fastened and connected to the steam delivery pipe 400 by the first clamp 600. In this embodiment, the length of the elastic reinforcement sleeve 200 is less than the length of the duct body 100, so the elastic reinforcement sleeve 200 is exposed at the end of the duct body 100, and the exposed part is plugged with the steam delivery pipe 400, and is fastened and connected to the outside by the first clamp 600, thereby realizing the sealed and fastened connection between the duct 800 and the steam delivery pipe 400. The duct 800 is connected to the steam delivery pipe 400, and the sealing test is good, and the pressure test reaches 500Kpa, which meets the pressure requirements of steam delivery on the duct 800.
[0051] According to an embodiment provided by the utility model, the duct body 100 is fastened to the steam generating component 500 by the second clamp 700. In this embodiment, the length of the elastic reinforcement sleeve 200 is less than the length of the duct body 100, so the elastic reinforcement sleeve 200 is exposed at the end of the duct body 100, and the exposed part is plugged with the air outlet of the steam generating component 500, and is fastened to the outside by the second clamp 700, thereby realizing the sealed fastening connection between the duct 800 and the steam generating component 500. The duct 800 is connected to the steam generating component 500, and the sealing test is good, and the pressure test reaches 500Kpa, which meets the pressure requirements of the duct 800 for steam transportation.
[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A catheter for a steam ablation medical device, characterized in that: It comprises a catheter body and an elastic reinforcement sleeve, wherein the catheter body is a flexible member, the elastic reinforcement sleeve is sleeved on the outer side of the catheter body, and the inner wall of the elastic reinforcement sleeve is connected to the outer wall of the catheter body.
2. The catheter of the steam ablation medical device according to claim 1, characterized in that: The catheter body and the elastic reinforcement sleeve are coaxially arranged.
3. The catheter of the steam ablation medical device according to claim 1, characterized in that: The gap distance between the outer wall of the catheter body and the inner wall of the elastic reinforcement sleeve is less than or equal to 0.2 mm.
4. The catheter of the steam ablation medical device according to claim 3, characterized in that: The gap between the inner wall of the elastic reinforcement sleeve and the outer wall of the catheter body is filled with sealant.
5. The catheter of the steam ablation medical device according to claim 1, characterized in that: The elastic reinforcing sleeve comprises a spring, and the catheter body is penetrated inside the spring.
6. The catheter of the steam ablation medical device according to claim 5, characterized in that: The spring is a stainless steel coil spring.
7. The catheter of the steam ablation medical device according to claim 1, characterized in that: The inner diameter of the catheter body is 1.2 mm, the outer diameter is 3.2 mm to 6.2 mm, and the outer diameter of the elastic reinforcement sleeve is 3.4 mm to 6.4 mm.
8. A steam ablation medical device, characterized in that: It comprises a steam generating component, a steam delivery tube and a catheter of the steam ablation medical device as claimed in any one of claims 1 to 7, wherein the steam generating component, the catheter of the steam ablation medical device and the steam delivery tube are connected in sequence.
9. The steam ablation medical device according to claim 8, characterized in that: The conduit body is fastened to the steam delivery pipe via a first clamp.
10. The steam ablation medical device according to claim 8, characterized in that: The conduit body is fastened to the steam generating component via a second clamp.