Stripping device for medical thin-walled tube

Abstract

The utility model discloses a stripping device for a medical thin-walled tube. The stripping device for the medical thin-walled tube is used for separating the medical thin-walled tube which is coated and cured on the surface of a core wire from the core wire, the two opposite ends of the core wire are exposed to the medical thin-walled tube, and the stripping device for the medical thin-walled tube comprises a rack; the first clamping mechanism and the second clamping mechanism are mounted on the rack and are oppositely arranged; the first clamping mechanism and the second clamping mechanism are respectively used for clamping and fixing exposed parts of two opposite ends of the core wire; and the driving mechanism is connected with at least one of the first clamping mechanism and the second clamping mechanism, and the driving mechanism is used for driving one of the first clamping mechanism and the second clamping mechanism to move towards or away from the other one of the first clamping mechanism and the second clamping mechanism. By adopting the stripping device, the thin-walled tube can be conveniently and quickly separated from the core wire, and the yield of the obtained thin-walled tube can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of production equipment for medical devices, and in particular to a stripping device for medical thin-walled tubes. Background Art

[0002] Polytetrafluoroethylene (PTFE), commonly known as the "King of Plastics", is a polymer material with special properties and occupies an extremely important position in new materials. PTFE has excellent properties such as excellent resistance to chemical corrosion, extremely low surface friction coefficient, high temperature resistance, good dielectric properties and electrical insulation, and is widely used in aerospace, electronics, metallurgy, medicine, semiconductors and other fields.

[0003] Chinese Patent 202320441038.7 - A tube forming device and production system discloses a thin-walled tube forming device, which forms a thin-walled tube by coating a raw material liquid on the surface of a core wire and then solidifying the raw material liquid; however, the thin-walled tube formed in the above manner is not easy to peel off from the core wire. Utility Model Content

[0004] In order to solve the defects of the prior art, the purpose of the utility model is to provide a medical thin-wall tube stripping device, which can quickly and efficiently separate the thin-wall tube from the core wire.

[0005] In order to achieve the above purpose, a technical solution adopted by the utility model is: to provide a medical thin-wall tube stripping device, the medical thin-wall tube stripping device is used to separate the medical thin-wall tube coated and cured on the surface of the core wire from the core wire, and the opposite ends of the core wire are exposed to the medical thin-wall tube, characterized in that the medical thin-wall tube stripping device includes:

[0006] frame;

[0007] A first clamping mechanism and a second clamping mechanism installed on the frame and arranged opposite to each other, wherein the first clamping mechanism and the second clamping mechanism are respectively used to clamp and fix exposed portions at opposite ends of the core wire;

[0008] A driving mechanism is connected to at least one of the first clamping mechanism and the second clamping mechanism, and is used to drive one of the first clamping mechanism and the second clamping mechanism to move toward or away from the other of the first clamping mechanism and the second clamping mechanism.

[0009] Optionally, a guide rail is provided on the frame, the first clamping mechanism is installed on the guide rail, and the driving mechanism drives the first clamping mechanism to move along the guide rail.

[0010] Optionally, the second clamping mechanism is installed on the frame in an adjustable fixed position, and the initial distance between the first clamping mechanism and the second clamping mechanism is adjusted by adjusting the fixed position of the second clamping mechanism on the frame.

[0011] Optionally, the first clamping mechanism includes a first mounting seat and a first clamping claw, the first mounting seat can be movably mounted on the guide rail, and the first clamping claw is fixedly mounted on the first mounting seat;

[0012] The driving mechanism comprises a driving motor and a screw rod, wherein the screw rod is arranged along the guide rail, and the driving motor is connected to the screw rod to drive the screw rod to rotate; the screw rod is threadedly connected to the first mounting seat.

[0013] Optionally, a side of the frame away from the first clamping mechanism is provided with a plurality of mounting portions which are sequentially spaced and arranged parallel to the guide rail;

[0014] The second clamping mechanism is detachably connected to the mounting portion via a fastener.

[0015] Optionally, the medical thin-wall tube stripping device further comprises a maintaining mechanism, and the maintaining mechanism is provided with a maintaining channel;

[0016] A core wire having a thin-walled tube is disposed through the maintenance channel.

[0017] Optionally, the maintenance mechanism includes a plurality of maintenance components, each of which includes a maintenance seat and a rotation blocking member;

[0018] The maintenance seat is fixed to the frame, and a maintenance groove is provided on the maintenance seat;

[0019] The rotating blocking member comprises a blocking plate and a power device, wherein the blocking plate is rotatably mounted on the frame, and the power device is connected to the blocking plate to drive the blocking plate to rotate;

[0020] The blocking plate has a first state where it covers the maintaining groove and forms the maintaining channel with the maintaining groove; and the blocking plate has a second state where it is away from the maintaining groove so that the maintaining groove is exposed;

[0021] The blocking plate is driven to rotate by the power device, so that the blocking plate is switched between the first state and the second state.

[0022] Optionally, the medical thin-wall tube stripping device further comprises a controller, and the controller is communicatively connected with the driving mechanism;

[0023] A pressure sensor is provided between the first mounting seat and the first clamping jaw, so as to detect the pulling force of the first clamping jaw on the core wire;

[0024] The controller is communicatively connected to the controller, and the controller is used to send a control signal to the driving mechanism when the pressure sensor detects that the pulling force of the first clamping jaw on the core wire reaches a set value, so as to control the driving mechanism to stop driving the first clamping mechanism to move.

[0025] Optionally, the medical thin-wall tube stripping device further comprises an accordion protective cover, the number of the accordion protective covers is two, and the two accordion protective covers are respectively connected to opposite sides of the first mounting seat, and the accordion protective cover is covered on the guide rail.

[0026] Optionally, a sample placement box is further provided on the rack, and the placement box is arranged in a direction parallel to the guide rail.

[0027] The present application provides a medical thin-wall tube stripping device. The first clamping mechanism and the second clamping mechanism can be used to clamp and fix the exposed parts of the opposite ends of the core wire respectively, so as to stretch the core wire so that the core wire can be elongated and thinned, so as to separate the thin-wall tube attached to the surface of the core wire from the core wire. This solution can realize the rapid separation of the thin-wall tube and the core wire without causing damage to the thin-wall tube, and can improve the production yield of the thin-wall tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment of a medical thin-wall tube stripping device provided by the present application;

[0029] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the first clamping mechanism in the stripping device for the medical thin-walled tube is shown;

[0030] Figure 3 yes Figure 1 A schematic diagram of the installation structure of the second clamping mechanism in the stripping device for the medical thin-walled tube is shown;

[0031] Figure 4 Yes Yes Figure 1 A schematic diagram of the coordination structure of the first clamping mechanism and the driving mechanism in the medical thin-wall tube stripping device;

[0032] Figure 5 yes Figure 1 A schematic structural diagram of a maintaining assembly in a stripping device for a medical thin-walled tube;

[0033] Figure 6 yes Figure 5 A schematic diagram of the structure of the maintenance component in the first state;

[0034] Figure 7 yes Figure 5The schematic diagram of the structure of the maintenance component in the second state is shown. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a 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, a first feature being “above”, “above”, and “above” a 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. A first feature being “below”, “below”, and “below” a 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.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] When manufacturing thin-walled tubes, existing thin-walled tube forming equipment usually inserts a core wire into a raw material liquid, so that the raw material liquid forms a coating on the surface of the core wire, and then forms a thin-walled tube by solidifying the coating. For thin-walled tubes, the thickness is usually 0.02-0.03mm, and the strength of thin-walled tubes is relatively low, so the thin-walled tubes are not easy to remove from the core wire.

[0042] See also Figure 1-Figure 4 , Figure 1 It is a structural schematic diagram of an embodiment of a medical thin-wall tube stripping device provided by the present application; Figure 2 yes Figure 1 A schematic diagram of the installation structure of the first clamping mechanism in the stripping device for the medical thin-walled tube is shown; Figure 3 yes Figure 1 A schematic diagram of the installation structure of the second clamping mechanism in the stripping device for the medical thin-walled tube is shown; Figure 4 Yes Yes Figure 1 A schematic diagram of the coordination structure of the first clamping mechanism and the driving mechanism in the stripping device for medical thin-walled tubes is shown.

[0043] The medical thin-walled tube stripping device 10 can be used to separate the medical thin-walled tube coated and cured on the surface of the core wire from the core wire, and the opposite ends of the core wire are exposed to the medical thin-walled tube. The medical thin-walled tube stripping device 10 includes: a frame 110, a first clamping mechanism 120 and a second clamping mechanism 130 installed on the frame 110 and arranged oppositely, and a driving mechanism 140.

[0044] Among them, the first clamping mechanism 120 and the second clamping mechanism 130 can be used to clamp and fix the exposed parts of the opposite ends of the core wire respectively; the driving mechanism 140 is connected to at least one of the first clamping mechanism 120 and the second clamping mechanism 130, and the driving mechanism 140 can be used to drive one of the first clamping mechanism 120 and the second clamping mechanism 130 to move toward or away from the other of the first clamping mechanism 120 and the second clamping mechanism 130, so as to stretch the core wire clamped by the two, so that the core wire can be elongated and thinned, so as to separate the thin-walled tube attached to the surface of the core wire from the core wire.

[0045] The first clamping mechanism 120 and the second clamping mechanism 130 in the above-mentioned scheme can be used to clamp and fix the exposed parts of the opposite ends of the core wire respectively to stretch the core wire so that the core wire can be elongated and thinner, so as to separate the thin-walled tube attached to the surface of the core wire from the core wire. This scheme can realize the rapid separation of the thin-walled tube and the core wire without causing damage to the thin-walled tube, thereby improving the production yield of the thin-walled tube.

[0046] In this embodiment, optionally, the core wire can be a copper wire with good ductility.

[0047] Please read further Figure 4 .

[0048] In this embodiment, a guide rail 111 is provided on the frame 110, and the first clamping mechanism 120 is installed on the guide rail 111. The driving mechanism 140 can be connected to the first clamping mechanism 120 and drive the first clamping mechanism 120 to move along the guide rail 111, so that the distance between the first clamping mechanism 120 and the second clamping mechanism 130 can be adjusted, thereby achieving the stretching of the core wire clamped by the two.

[0049] In some other embodiments, the first clamping mechanism 120 and the second clamping mechanism 130 can both be placed on the guide rail 111 (wherein the guide rail 111 can be a whole continuous guide rail; or, the guide rail 111 can be two guide rail portions spaced apart, and the first clamping mechanism 120 and the second clamping mechanism 130 are respectively mounted on the two guide rail portions); the driving mechanism 140 can drive the first clamping mechanism 120 and the second clamping mechanism 130 to move towards or away from each other.

[0050] Please read further Figure 3 In this embodiment, the second clamping mechanism 130 is installed on the frame 110 in an adjustable fixed position, and the initial distance between the first clamping mechanism 120 and the second clamping mechanism 130 is adjusted by adjusting the fixed position of the second clamping mechanism 130 on the frame.

[0051] The frame 110 may be provided with a plurality of mounting portions 112 spaced apart from each other corresponding to the second clamping mechanism 130, wherein each mounting portion 112 may include a plurality of mounting holes 1121. The second clamping mechanism 130 may be detachably fixed to the mounting portion 112 by fasteners such as bolts and pins.

[0052] Among them, multiple installation parts 112 arranged in sequence can be arranged in a direction parallel to the guide rail 111. Therefore, by fixing the second clamping mechanism 130 on different installation parts 112, the initial distance between the first clamping mechanism 120 and the second clamping mechanism 130 can be adjusted.

[0053] In this embodiment, the first clamping mechanism 120 and the second clamping mechanism 130 have the same structure. The first clamping mechanism 120 is taken as an example for description.

[0054] The first clamping mechanism 120 includes a first mounting seat 121 and a first clamping jaw 122. The first mounting seat 121 can be movably mounted on the guide rail 111, and the first clamping jaw 122 is fixedly mounted on the first mounting seat 121. The first clamping jaw 122 can be used to mount one end of a fixed guide wire.

[0055] The driving mechanism 140 includes a driving motor 141 and a screw rod 142. The screw rod 142 is arranged along the guide rail 111. The driving motor 141 is connected to the screw rod 142 to drive the screw rod 142 to rotate. The screw rod 142 is screwed to the first mounting seat 121. Therefore, the driving mechanism 140 drives the screw rod 142 to rotate to drive the first mounting seat 121 to move along the guide rail 111.

[0056] Please read further Figure 1 and Figure 5-Figure 7 ,in, Figure 5 yes Figure 1 A schematic structural diagram of a maintaining assembly in a stripping device for a medical thin-walled tube; Figure 6 yes Figure 5 A schematic diagram of the structure of the maintenance component in the first state; Figure 7 yes Figure 5 The schematic diagram of the structure of the maintenance component in the second state is shown.

[0057] The medical thin-wall tube stripping device 10 further includes a maintaining mechanism 150 , and the maintaining mechanism 150 is provided with a maintaining channel; a core wire having the thin-wall tube is provided through the maintaining channel.

[0058] Among them, the maintaining mechanism 150 is arranged between the first clamping mechanism 120 and the second clamping mechanism 130, and the maintaining channel can be used to place the core wire with a thin-walled tube installed between the first clamping mechanism 120 and the second clamping mechanism 130. By setting the maintaining channel, the problem of the core wire being broken due to pulling when the core wire is stretched can be avoided.

[0059] Among them, the maintaining mechanism 150 includes a plurality of maintaining components 151, each maintaining component 151 includes a maintaining seat 152 and a rotating blocking member 153; the maintaining seat 152 is fixed to the frame 110, and a maintaining groove 1521 is provided on the maintaining seat 152; the rotating blocking member 153 includes a blocking plate 1531 and a power device 1532, the blocking plate 1531 is rotatably installed on the frame 110, and the power device 1532 is connected to the blocking plate 1531 to drive the blocking plate 1531 to rotate; wherein the blocking plate 1531 has a first state in which it is covered on the maintaining groove 1521 and forms a maintaining channel with the maintaining groove 1521; and the blocking plate 1531 has a second state in which it is away from the maintaining groove 1521 so that the maintaining groove 1521 is exposed; the blocking plate 1531 is driven to rotate by the power device 1532 so that the blocking plate 1531 switches between the first state and the second state.

[0060] Please read further Figure 5-Figure 7 When the blocking plate 1531 is in the second state, it is convenient to place the core wire of the thin-walled tube into the maintaining groove 1521; then the blocking plate 1531 can be switched to the first state, thereby confining the core wire of the thin-walled tube in the formed maintaining channel.

[0061] Furthermore, in this embodiment, the medical thin-wall tube stripping device 10 further includes a controller 160 , and the controller 160 is communicatively connected with the driving mechanism 140 ; ​​thus, the operation of the driving mechanism 140 can be controlled by signals.

[0062] Specifically, the controller 160 can establish an electrical connection with the drive motor 141. The controller 160 can adjust parameters such as the speed and direction of the output shaft of the drive motor 141, and can also control whether the drive motor 141 is working or not.

[0063] In this embodiment, a pressure sensor 123 is provided between the first mounting seat 121 and the first clamping jaw 122 to detect the pulling force of the first clamping jaw 122 on the core wire.

[0064] The pressure sensor 123 is connected to the controller 160 for communication. When the pressure sensor 123 detects that the pulling force of the first clamping jaw 122 on the core wire reaches a set value, the controller 160 sends a control signal to the driving mechanism 140 to control the driving mechanism 141 to stop driving the first clamping mechanism 120 to move.

[0065] Please read further Figure 1 and Figure 2 .

[0066] In this embodiment, the medical thin-wall tube stripping device 10 further includes an accordion protective cover 170 . There are two accordion protective covers 170 , and the two accordion protective covers 170 are respectively connected to opposite sides of the first mounting seat 121 . The accordion protective covers 170 are covered on the guide rail 111 .

[0067] In this embodiment, two accordion protective covers 170 are provided on the guide rails to isolate the moving parts from the external environment, thereby increasing the life of the parts and ensuring the long-term stable operation of the moving parts.

[0068] The accordion protective cover 170 is a corrugated elastic cover. When the first mounting seat 121 moves along the guide rail 111 , the two accordion protective covers 170 on both sides of the first mounting seat 121 are matched with the first mounting seat 121 to perform elastic deformation.

[0069] Furthermore, a sample placement box 180 is also provided on the rack 110 . The sample placement box 180 is arranged in a direction parallel to the guide rail 111 . The sample placement box 180 can be used to place a guide wire with a thin-walled tube or a stretched guide wire.

[0070] In summary, the present application provides a medical thin-wall tube stripping device. The first clamping mechanism and the second clamping mechanism can be used to clamp and fix the exposed parts of the opposite ends of the core wire respectively, so as to stretch the core wire so that the core wire can be elongated and thinned, so as to separate the thin-wall tube attached to the surface of the core wire from the core wire. This solution can realize the rapid separation of the thin-wall tube and the core wire without causing damage to the thin-wall tube, and can improve the production yield of the thin-wall tube.

[0071] The above embodiments are merely illustrative of the present invention, and are not exhaustive embodiments. The present invention may also be implemented in other specific ways or other specific forms without departing from the gist or essential features of the present invention. Therefore, the described embodiments should be considered illustrative rather than restrictive in any respect. The scope of the present invention should be described by the appended claims, and any changes equivalent to the intent and scope of the claims should also be included within the scope of the present invention.

Claims

1. A medical thin-wall tube stripping device, which is used to separate a medical thin-wall tube coated and cured on the surface of a core wire from the core wire, wherein opposite ends of the core wire are exposed to the medical thin-wall tube, and is characterized in that: The stripping device for the medical thin-walled tube comprises: frame; A first clamping mechanism and a second clamping mechanism installed on the frame and arranged opposite to each other, wherein the first clamping mechanism and the second clamping mechanism are respectively used to clamp and fix exposed portions at opposite ends of the core wire; A driving mechanism is connected to at least one of the first clamping mechanism and the second clamping mechanism, and is used to drive one of the first clamping mechanism and the second clamping mechanism to move toward or away from the other of the first clamping mechanism and the second clamping mechanism.

2. The medical thin-wall tube stripping device according to claim 1, characterized in that: The frame is provided with a guide rail, the first clamping mechanism is installed on the guide rail, and the driving mechanism drives the first clamping mechanism to move along the guide rail.

3. The medical thin-wall tube stripping device according to claim 2, characterized in that: The second clamping mechanism is installed on the frame in an adjustable fixed position, and the initial distance between the first clamping mechanism and the second clamping mechanism is adjusted by adjusting the fixed position of the second clamping mechanism on the frame.

4. The medical thin-wall tube stripping device according to claim 2, characterized in that: The first clamping mechanism comprises a first mounting seat and a first clamping claw, the first mounting seat can be movably mounted on the guide rail, and the first clamping claw is fixedly mounted on the first mounting seat; The driving mechanism comprises a driving motor and a screw rod, wherein the screw rod is arranged along the guide rail, and the driving motor is connected to the screw rod to drive the screw rod to rotate; the screw rod is threadedly connected to the first mounting seat.

5. The medical thin-wall tube stripping device according to claim 3, characterized in that: A plurality of mounting parts are arranged at intervals in sequence along and parallel to the guide rail on one side of the frame away from the first clamping mechanism; The second clamping mechanism is detachably connected to the mounting portion via a fastener.

6. The medical thin-wall tube stripping device according to any one of claims 1 to 5, characterized in that: The medical thin-wall tube stripping device further comprises a maintaining mechanism, wherein the maintaining mechanism is provided with a maintaining channel; A core wire having a thin-walled tube is disposed through the maintenance channel.

7. The medical thin-wall tube stripping device according to claim 6, characterized in that: The maintenance mechanism includes a plurality of maintenance components, each of which includes a maintenance seat and a rotation blocking member; The maintenance seat is fixed to the frame, and a maintenance groove is provided on the maintenance seat; The rotating blocking member comprises a blocking plate and a power device, wherein the blocking plate is rotatably mounted on the frame, and the power device is connected to the blocking plate to drive the blocking plate to rotate; The blocking plate has a first state where it covers the maintaining groove and forms the maintaining channel with the maintaining groove; and the blocking plate has a second state where it is away from the maintaining groove so that the maintaining groove is exposed; The blocking plate is driven to rotate by the power device, so that the blocking plate is switched between the first state and the second state.

8. The medical thin-wall tube stripping device according to claim 4, characterized in that: The medical thin-wall tube stripping device further comprises a controller, which is communicatively connected with the driving mechanism; A pressure sensor is provided between the first mounting seat and the first clamping jaw, so as to detect the pulling force of the first clamping jaw on the core wire; The controller is communicatively connected to the controller, and the controller is used to send a control signal to the driving mechanism when the pressure sensor detects that the pulling force of the first clamping jaw on the core wire reaches a set value, so as to control the driving mechanism to stop driving the first clamping mechanism to move.

9. The medical thin-wall tube stripping device according to claim 4, characterized in that: The medical thin-wall tube stripping device further comprises an accordion protective cover. The number of the accordion protective covers is two, and the two accordion protective covers are respectively connected to the opposite sides of the first mounting seat, and the accordion protective cover is covered on the guide rail.

10. The medical thin-wall tube stripping device according to claim 9, characterized in that: The rack is also provided with a sample placement box, and the placement box is arranged in a direction parallel to the guide rail.

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