Tubular interventional member covered stent device

Abstract

The utility model discloses a kind of tubular intervention component film covering device, including base, heating module on the base;The heating module includes sequentially detachable connection's first heating unit, several second heating units and third heating unit;The first heating unit, second heating unit, third heating unit respectively have first channel, second channel, third channel extending along its axial direction;Wherein, when the first heating unit, second heating unit and third heating unit are sequentially matched connection, the first channel, second channel, third channel coaxial butt joint and form film covering channel.The utility model realizes the length of heating module and the adaptation of the length of tubular intervention component needing film covering, realizes the overall synchronous heating film covering of tubular intervention component, improves film covering efficiency and film covering effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a membrane covering device for tubular interventional components. Background Technology

[0002] Medical tubular interventional devices typically employ a multi-layered structure design, with a polymer membrane covering the outer layer of the braided structure to enhance its permeability, support, and force transmission properties. The molding of multi-layered tubular interventional devices often utilizes a heat-shrink lamination process, where the polymer material is shrunk, fused, and cooled at a set temperature to achieve bonding between the lamination and the tubular interventional device.

[0003] Due to the long dimensions of tubular interventional components, current coating devices for these components typically require a pneumatic system to drive a heating device up and down along a track to gradually complete the coating process. This mobile heating method results in low coating efficiency, as the heating device needs to be moved repeatedly, limiting the coating speed and leading to a long overall processing time. Furthermore, the coating accuracy is poor, especially at the distal end of the tubular interventional component, where inaccurate positioning of the heating device can easily lead to over- or under-coating.

[0004] The present invention aims to provide a membrane covering device for tubular interventional components to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a coating device for tubular interventional components to solve the problems of low coating efficiency and poor coating accuracy in the prior art.

[0006] To achieve the above objectives, this utility model provides a tubular interventional component coating device, comprising: a base and a heating module disposed on the base; The heating module includes a first heating unit, several second heating units, and a third heating unit that are detachably connected in sequence; the first heating unit, the second heating unit, and the third heating unit each have a first channel, a second channel, and a third channel extending along their axial direction; wherein, when the first heating unit, the second heating unit, and the third heating unit are connected in sequence, the first channel, the second channel, and the third channel are coaxially connected to form a film-coating channel.

[0007] According to one embodiment of the present invention, the number of the second heating units is one or more; when the number of the second heating units is multiple, the multiple second heating units are connected in series sequentially.

[0008] According to one embodiment of the present invention, the axial length of each second heating unit ranges from 1mm to 200mm.

[0009] According to one embodiment of the present invention, the first heating unit, the second heating unit and the third heating unit each include a sleeve and a heating cavity formed inside the sleeve. The heating cavity is used to contain a heating medium and surrounds the outer periphery of the first channel, the second channel and the third channel respectively.

[0010] According to one embodiment of the present invention, when the first heating unit, the second heating unit and the third heating unit are connected in sequence, the heating cavities of the first heating unit, the second heating unit and the third heating unit are interconnected to form a continuous film-coated heating cavity.

[0011] According to one embodiment of the present invention, along the axial direction of the second heating unit, one end of the second heating unit is provided with at least one medium output port, and the other end is provided with at least one medium input port, wherein the medium output port and the medium input port are connected to the heating cavity; The heating module includes a heater. The first heating unit is provided with a heat source inlet that connects the heating chamber to the heater and a first heat-conducting interface that matches and connects to the medium input port. The third heating unit is provided with a second heat-conducting interface that matches and connects to the medium output port and a heat source outlet that connects the heating chamber to the heater.

[0012] According to one embodiment of the present invention, the medium inlet is formed as a protrusion protruding from the sleeve along the sleeve axis, and the medium outlet is formed as a groove structure recessed from the sleeve into the heating cavity along the sleeve axis, wherein the groove structure and the protrusion structure are inserted into each other.

[0013] According to one embodiment of the present invention, the first heating unit, the second heating unit and the third heating unit are respectively provided with connecting parts that cooperate and connect with each other. The connecting parts are threaded connecting parts, snap-fit ​​connecting parts or magnetic connecting parts.

[0014] According to one embodiment of the present invention, it further includes a first fixing frame disposed on the base, and the first heating unit of the heating module is fixed on the first fixing frame.

[0015] According to one embodiment of the present invention, it further includes a second fixing frame disposed above the first fixing frame and a clamping module disposed on the second fixing frame, the clamping module being used to clamp and fix the upper end.

[0016] The beneficial effects of this utility model are as follows: This utility model sets up a first heating unit, a second heating unit, and a third heating unit that can be detachably connected and combined to form a coating channel that can continuously accommodate the tubular interventional component. The number and length of the second heating unit can be flexibly adjusted according to actual needs, so that the heating module can adapt to the coating requirements of tubular interventional components of different lengths. This achieves overall synchronous heating and coating of the tubular interventional component, significantly improves coating efficiency, shortens processing time, and avoids the problem of over- or under-coating caused by inaccurate positioning, thus ensuring the coating quality of the tubular interventional component. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a tubular interventional component coating device according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the heating module of the tubular interventional component coating device; Figure 3 yes Figure 2 A sectional view along the BB direction; Figure 4 yes Figure 2 A schematic diagram of the structure of the first heating unit of the heating module; Figure 5 yes Figure 2 A schematic diagram of the structure of the second heating unit of the heating module; Figure 6 yes Figure 2 A schematic diagram of the structure of the third heating unit in the heating module; Among them, 100 is a tubular interventional component coating device; 1 is a base; 2 is a heating module; 3 is a first fixing frame; 4 is a second fixing frame; 5 is a clamping module; 10 is a first heating unit; 20 is a second heating unit; 30 is a third heating unit; 11 is a first channel; 21 is a second channel; 31 is a third channel; 40 is a coating channel; 50 is a connector; 60 is a sleeve; 70 is a heating chamber; 12 is a first sleeve; 13 is a first heating chamber; 14 is a first heat conduction interface; 22 is a second sleeve; 23 is a second heating chamber; 24 is a medium inlet; 25 is a medium outlet; 32 is a third sleeve; 33 is a third heating chamber; 34 is a second heat conduction interface; 71 is a heat source inlet; 72 is a heat source outlet. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Please refer to them. Figures 1 to 6 The diagram shows a preferred embodiment of the present invention.

[0019] It should be understood that, unless otherwise expressly specified and limited, in this application, the terms "upper," "lower," "front," "rear," "left," "right," etc., indicate the orientation or positional relationship based on the illustrations and are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "set", "connect", "connect", "fixed" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part.

[0021] It should be noted that in the following embodiments and accompanying drawings, components unrelated to this utility model have been omitted and not shown; and for ease of understanding, the size ratios between the components are exaggerated and differ from the actual product.

[0022] The molding of multi-layered tubular interventional components in medical devices typically employs a heat-shrink lamination process to bond the tubular component to the lamination. Due to the considerable length of these tubular components, existing lamination equipment relies on a pneumatic system to drive the heating device up and down, completing the lamination process in segments. This mobile heating method limits lamination speed, reduces efficiency, and results in poor lamination accuracy, often leading to insufficient or excessive lamination at the distal end of the tubular component. This utility model provides a tubular interventional component coating device 100 to solve the above-mentioned problems. (See reference...) Figures 1 to 3 This invention provides a tubular interventional component coating device 100, which includes a base 1 and a heating module 2 disposed on the base 1.

[0023] The heating module 2 includes a first heating unit 10, a second heating unit 20, and a third heating unit 30 that are detachably connected in sequence; the first heating unit 10, the second heating unit 20, and the third heating unit 30 each have a first channel 11, a second channel 21, and a third channel 31 extending along their axial direction; wherein, when the first heating unit 10, the second heating unit 20, and the third heating unit 30 are connected in sequence, the first channel 11, the second channel 21, and the third channel 31 are coaxially connected to form a film-coating channel 40.

[0024] The first heating unit 10, the second heating unit 20, and the third heating unit 30 are detachably connected. The number or length of the second heating unit 20 can be flexibly adjusted according to the actual requirements of the coating length of the tubular interventional component. This allows the overall length of the heating module 2 to be flexibly adjusted according to the length of the tubular interventional component that needs to be coated.

[0025] Meanwhile, when a heating unit malfunctions, only the corresponding heating unit needs to be replaced, without having to replace the entire heating module 2, thus reducing maintenance costs and time.

[0026] The first heating unit 10, the second heating unit 20, and the third heating unit 30 each have a first channel 11, a second channel 21, and a third channel 31 extending along their axial direction. The coaxial connection of the first channel 11, the second channel 21, and the third channel 31 can be spliced ​​to form a membrane channel 40 that can continuously accommodate a tubular interventional component.

[0027] During the coating process, the tubular interventional component is fully housed in the coating channel 40, and the entire tubular interventional component can be coated synchronously from top to bottom. Compared with the existing coating device's moving segmented coating method, this greatly improves coating efficiency and shortens the overall processing time.

[0028] Meanwhile, since the heating module 2 can stably heat the tubular interventional component as a whole, it avoids the problem of over- or under-coating caused by inaccurate positioning of the heating device, significantly improving the coating accuracy, especially ensuring the coating quality of the distal end of the tubular interventional component.

[0029] The number of the second heating units 20 is one or more. When there are multiple second heating units 20, the multiple second heating units 20 are connected in series.

[0030] In this embodiment, there is one second heating unit 20, and its two axial ends are respectively connected to the first heating unit 10 and the third heating unit 30.

[0031] In practical applications, the number of second heating units 20 can be flexibly configured according to the specific length of the tubular interventional component. When the tubular interventional component is short, only one second heating unit 20 can be used; when the tubular interventional component is long, multiple second heating units 20 can be connected in series to meet the coating requirements of tubular interventional components of different lengths.

[0032] The axial length of each second heating unit 20 ranges from 1mm to 200mm. In actual production, a second heating unit 20 with a suitable axial length can be selected according to the length of the tubular interventional component and the requirements of the coating process, or a combination of second heating units 20 with different axial lengths can be used to achieve a precise match between the length of the overall heating module 2 and the length of the tubular interventional component that needs to be coated, so as to ensure the consistency and stability of the coating effect.

[0033] In this embodiment, the axial dimension of the second heating unit 20 can be set to different specifications, such as 1mm, 5mm, 10mm, 20mm, 50mm, 100mm, 200mm, etc. Through diverse specification settings, the most suitable heating module 2 configuration can be quickly selected and combined according to the specific length of the tubular intervention component during actual production, eliminating the need to customize heating units of specific sizes, greatly shortening the production preparation cycle and reducing production costs.

[0034] Specifically, the tubular interventional component coating device 100 includes a first fixing frame 3 disposed on the base 1, and the first heating unit 10 of the heating module 2 is fixed on the first fixing frame 3.

[0035] The first fixing frame 3 provides a stable support base for the heating module 2. The first heating unit 10 is fixed on the first fixing frame 3, the second heating unit 20 is detachably connected to the first heating unit 10, and the third heating unit 30 is detachably connected to the second heating unit 20. In this way, the entire heating module 2 can be stably fixed on the base 1, so that the heating module 2 remains stable during operation and will not shake due to heating operations, placement of tubular intervention components, etc., which would affect the accuracy and quality of the coating. The tubular interventional component coating device 100 further includes a second fixing frame 4 disposed above the first fixing frame 3, and a clamping module 5 is installed on the second fixing frame 4. The clamping module 5 can clamp and fix the upper end of the tubular interventional component. During the coating process, the upper end of the tubular interventional component is stably clamped in the clamping module 5, preventing it from shifting vertically or horizontally. The main body of the tubular interventional component is accommodated in the coating channel 40 formed by the docking of the first channel 11, the second channel 21, and the third channel 31, and undergoes overall heating and coating.

[0036] The first heating unit 10 and the second heating unit 20, adjacent second heating units 20, and the second heating unit 20 and the third heating unit 30 are all connected and fixed in a detachable manner.

[0037] Specifically, the first heating unit 10, the second heating unit 20, and the third heating unit 30 are each provided with a connecting member 50 that cooperates with each other. The connecting member 50 can be a threaded connector, a snap-fit ​​connector, or a magnetic connector, etc., all of which can achieve quick assembly and disassembly and are easy to operate.

[0038] In this embodiment, the connector 50 is configured as a threaded fixing seat. The connector 50 of the first heating unit 10 is located on the side close to the second heating unit 20, and the second heating unit 20 has connectors 50 at both axial ends. The connector 50 of the third heating unit 30 is located on the side close to the second heating unit 20.

[0039] During assembly, the first heating unit 10, the second heating unit 20, and the third heating unit 30 are placed adjacent to each other in sequence. The two threaded seats of two adjacent heating units are aligned and abutted against each other, and bolts are passed through these two threaded seats and tightened to connect and fix the two adjacent heating units.

[0040] The first heating unit 10, the second heating unit 20 and the third heating unit 30 each include a sleeve 60 and a heating cavity 70 formed inside the sleeve 60. The first channel 11, the second channel 21 and the third channel 31 pass through the sleeve 60 of the corresponding heating unit along their axial direction. The heating cavity 70 surrounds the outer periphery of the first channel 11, the second channel 21 and the third channel 31 respectively.

[0041] The heating chamber 70 is used to contain the heating medium, so that the inner wall of each channel can form a heating surface for radiative heating of the tubular interventional component, providing uniform and stable heat for the coating of the tubular interventional component.

[0042] Specifically, refer to Figures 4 to 6 As shown, the first heating unit 10 includes a first sleeve 12 and a first heating cavity 13 disposed within the first sleeve 12, the first heating cavity 13 radially surrounding the first channel 11. The second heating unit 20 includes a second sleeve 22 and a second heating cavity 23 disposed within the second sleeve 22, the second heating cavity 23 radially surrounding the second channel 21. The third heating unit 30 includes a third sleeve 32 and a third heating cavity 33 disposed within the third sleeve 32, the third heating cavity 33 radially surrounding the third channel 31.

[0043] Since the first heating chamber 13, the second heating chamber 23, and the third heating chamber 33 are respectively arranged around the outer periphery of the first channel 11, the second channel 21, and the third channel 31, when the heating medium is filled into the heating chamber 70, it can uniformly heat the tubular interventional components in each channel, ensuring that the tubular interventional components are heated uniformly in the radial direction, and avoiding coating quality problems caused by uneven local heating.

[0044] Furthermore, when the first heating unit 10, the second heating unit 20, and the third heating unit 30 are connected in sequence, the first heating chamber 13, the second heating chamber 23, and the third heating chamber 33 are interconnected, forming a continuous coated heating chamber 70. This allows the heating medium to be transferred and circulated throughout the entire coated heating chamber 70 without the need for additional medium transfer or replenishment in each heating unit, further improving the heating uniformity of the tubular interventional component in the axial direction and enhancing the coating quality.

[0045] Along the axial direction of the second heating unit 20, one end of the second heating unit 20 is provided with at least one medium output port 25, and the other end is provided with at least one medium input port 24. The medium output port 25 and the medium input port 24 are connected to the heating cavity 70. The medium output port 25 can be matched and connected with the medium input port 24 of the adjacent second heating unit 20, so that when multiple second heating units 20 are connected in series, the heating medium can flow continuously through the heating cavity 70 of each second heating unit 20 in sequence.

[0046] In one embodiment, the second heating unit 20 has multiple pairs of medium inlet ports 24 and medium outlet ports 25 evenly distributed in the radial direction. In this way, the heating medium can enter and exit the heating chamber 23 of the second heating unit 20 through multiple paths, which can circulate more fully in the heating chamber 23, reduce heating dead zones, and further improve the uniformity of heating of the tubular interventional component.

[0047] The first heating unit 10 has a first heat-conducting interface 14 at one end near the second heating unit 20, which is matched and connected to the medium input port 24, so that the first heating chamber 13 and the second heating chamber 23 are connected. The third heating unit 30 has a second heat-conducting interface 34 at one end near the second heating unit 20, which is matched and connected to the medium output port 25, so that the second heating chamber 23 and the third heating chamber 33 are connected.

[0048] The heating module 2 further includes a heater, a heat source inlet 71 and a heat source outlet 72 that connect the heater and the film-coated heating chamber 70. The heater can be externally connected, and the heat it generates raises the temperature of the heating medium. The heating medium enters the film-coated heating chamber 70 from the heat source inlet 71, circulates within the film-coated heating chamber 70, and uniformly heats the tubular interventional component. Then, it flows back to the heater from the heat source outlet 72 for reheating, forming a complete heating medium circulation loop.

[0049] The heat source inlet 71 and heat source outlet 72 can be located on any one of the first, second, and third heating units 30, and can be flexibly set according to actual production needs and equipment layout.

[0050] In this embodiment, the heat source inlet 71 is preferably located on the first heating unit 10, and the heat source outlet 72 is located on the third heating unit 30. In this way, the heating medium enters the film-coated heating chamber 70 from the first heating unit 10, flows through the heating chambers 70 of each heating unit, and after fully heating the tubular intervention component, it flows out from the third heating unit 30 to achieve uniform heating.

[0051] The medium inlet 24 is formed as a protrusion protruding from the sleeve 60 along the sleeve axis, and the medium outlet 25 is formed as a groove structure recessed from the sleeve 60 into the heating chamber 70 along the sleeve axis. The groove structure can be inserted and engaged with the protrusion structure.

[0052] The first heat-conducting interface 14 is configured as a groove structure that matches the medium input port 24 of the second heating unit 20, so as to realize the smooth communication between the first heating cavity 13 and the second heating cavity 23; the second heat-conducting interface 34 is configured as a protrusion structure that matches the medium output port 25 of the second heating unit 20, so as to connect the second heating cavity 23 and the third heating cavity 33.

[0053] The outer diameter of the protrusion is slightly smaller than the inner diameter of the groove to ensure that the two can be tightly and smoothly inserted together, thus ensuring the smooth flow of the heating medium between different heating units.

[0054] Meanwhile, to further prevent leakage of the heating medium, an elastic sealing structure can be installed on the outer periphery of the raised structure. When the raised structure is inserted into the grooved structure, the elastic sealing structure is compressed and deformed, filling the tiny gap between the raised structure and the grooved structure, thereby effectively preventing leakage of the heating medium and improving the stability and reliability of the heating system.

[0055] This groove and protrusion interlocking structure not only enables quick docking between heating units, making disassembly and assembly more convenient and efficient, but also effectively prevents heating medium leakage and ensures the sealing of the heating medium circulation loop.

[0056] In this embodiment, the heating medium is a certain amount of airflow. The airflow is heated by the heater, and the hot air enters the film-coated heating chamber 70 from the heat source inlet 71. It circulates in the film-coated heating chamber 70 and uniformly heats the tubular intervention component contained in the film-coated channel 40. Then it flows back to the heater from the heat source outlet 72 for reheating, thereby forming an airflow circulation system.

[0057] Using airflow as the heating medium offers better fluidity and thermal conductivity compared to other heating media, enabling faster heat transfer into the heating chamber 70 and improving coating efficiency. Furthermore, the temperature and flow rate of the airflow can be precisely controlled by the heater. The heating parameters of the heater can be flexibly adjusted according to the different materials of the tubular interventional components and coating requirements to achieve the best coating effect.

[0058] In summary, this utility model, by setting up a detachably connected first heating unit 10, a second heating unit 20, and a third heating unit 30, combines and splices them to form a coating channel 40 that can continuously accommodate the tubular interventional component. The number and length of the second heating unit 20 can be flexibly adjusted according to actual needs, so that the heating module 2 can adapt to the coating requirements of tubular interventional components of different lengths, realizing the overall synchronous heating and coating of the tubular interventional component, significantly improving coating efficiency, shortening processing time, and avoiding the problem of over- or under-coating caused by inaccurate positioning, thus ensuring the coating quality of the tubular interventional component.

[0059] In the embodiments provided by this utility model, it should be understood that the above-described implementation of the structure is merely illustrative. For example, the division of the modules is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0060] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A membrane-coating device for a tubular interventional component, characterized in that, include: Base, heating module mounted on the base; The heating module includes a first heating unit, a second heating unit, and a third heating unit that are detachably connected in sequence; the first heating unit, the second heating unit, and the third heating unit each have a first channel, a second channel, and a third channel extending along their axial direction; wherein, when the first heating unit, the second heating unit, and the third heating unit are connected in sequence, the first channel, the second channel, and the third channel are coaxially connected to form a film-coating channel.

2. The tubular interventional component coating device according to claim 1, characterized in that, The number of the second heating units is one or more; when there are multiple second heating units, the multiple second heating units are connected in series in sequence.

3. The tubular interventional component coating device according to claim 1 or 2, characterized in that, The axial length of each of the second heating units ranges from 1mm to 200mm.

4. The tubular interventional component coating device according to claim 2, characterized in that, The first heating unit, the second heating unit, and the third heating unit each include a sleeve and a heating cavity formed inside the sleeve. The heating cavity is used to contain the heating medium and surrounds the outer periphery of the first channel, the second channel, and the third channel, respectively.

5. The tubular interventional component coating device according to claim 4, characterized in that, When the first heating unit, the second heating unit, and the third heating unit are connected in sequence, the heating chambers of the first heating unit, the second heating unit, and the third heating unit are interconnected to form a continuous film-coated heating chamber.

6. The tubular interventional component coating device according to claim 5, characterized in that, Along the axial direction of the second heating unit, one end of the second heating unit is provided with at least one medium output port, and the other end is provided with at least one medium input port, the medium output port and the medium input port being connected to the heating cavity; The heating module includes a heater, and the first heating unit is provided with a heat source inlet that connects the heating chamber to the heater and a first heat-conducting interface that matches and connects to the medium input port. The third heating unit is provided with a second heat-conducting interface that matches and connects with the medium output port, and a heat source outlet that connects the heating chamber with the heater.

7. The tubular interventional component coating device according to claim 6, characterized in that, The medium inlet is formed as a protrusion protruding from the sleeve along the sleeve axis, and the medium outlet is formed as a groove structure recessed from the sleeve into the heating cavity along the sleeve axis. The groove structure and the protrusion structure are inserted and engaged.

8. The tubular interventional component coating device according to claim 1, characterized in that, The first heating unit, the second heating unit, and the third heating unit are respectively provided with connecting parts that cooperate and connect with each other. The connecting parts are threaded connecting parts, snap-fit ​​connecting parts, or magnetic connecting parts.

9. The tubular interventional component coating device according to claim 1, characterized in that, It also includes a first fixing frame disposed on the base, and the first heating unit of the heating module is fixed on the first fixing frame.

10. The tubular interventional component coating device according to claim 9, characterized in that, It also includes a second fixing frame located above the first fixing frame and a clamping module located on the second fixing frame, the clamping module being used to clamp and fix the upper end of the tubular interventional member.

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