Opening and closing structure of catheter, clamping structure and drainage catheter

Abstract

The utility model discloses an opening and closing structure of a catheter, a clamping structure and a drainage catheter, the opening and closing structure of the catheter comprises a hold-down piece rotatably arranged on a catheter seat, the hold-down piece comprises a hold-down portion, the hold-down piece is arranged and the hold-down portion is positioned on one side of the catheter to conduct the catheter, and the hold-down portion is held down on the catheter to close the catheter by rotating the hold-down piece; the device can further comprise a blocking piece, the blocking piece is arranged on the guide pipe seat, the blocking piece is used for blocking the pressing and holding part from continuously rotating towards the guide pipe after the guide pipe is closed, the blocking piece comprises check blocks, and the check blocks are arranged on one side of the rotating center of the pressing and holding piece and one side of the pressing and holding part. The opening and closing structure of the catheter is not prone to falling off from the catheter base, and the catheter can be conveniently and effectively closed and opened.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an opening and closing structure, a clamping structure, and a drainage catheter. Background Technology

[0002] Once placed in the human body, catheters such as drainage catheters can be used for a long time. However, existing drainage catheters cannot be closed and require an external valve. The valve is usually threaded onto the interface of the catheter seat, which can easily loosen from the interface and fall off, making it difficult to close the drainage catheter.

[0003] Based on the above, it is necessary to provide an opening and closing structure that is not easily dislodged from the catheter seat and can conveniently and effectively close and open the catheter. Utility Model Content

[0004] In order to solve at least one of the problems mentioned in the background art, the present invention provides an opening and closing structure, a clamping structure and a drainage catheter. The opening and closing structure of the catheter is not easy to fall off from the catheter seat and can conveniently and effectively close and open the catheter.

[0005] The specific technical solution provided by this utility model is as follows:

[0006] In a first aspect, a catheter opening and closing structure is provided, including a clamping member rotatably disposed on a catheter seat. The clamping member includes a clamping part. By providing the clamping member, the clamping part is positioned on one side of the catheter to open the catheter. By rotating the clamping member, the clamping part clamps the catheter to close the catheter.

[0007] By means of the above technical solution, this utility model rotatably sets a clamping member on the conduit seat. When the conduit is in operation, the clamping part is positioned on one side of the conduit and does not clamp the conduit. By rotating the clamping member, the clamping part clamps the conduit and closes the conduit, thereby conveniently and effectively realizing the closing and opening of the conduit. At the same time, the clamping member is rotatably set on the conduit seat. Compared with valves that are threaded to the interface of the conduit seat, the clamping member is not easy to fall off the conduit seat, and maintenance is convenient.

[0008] As a preferred embodiment of the above solution, the opening and closing structure of the catheter also includes a blocking member, which is disposed on the catheter seat and is used to prevent the holding part from continuing to rotate toward the catheter after the catheter is closed.

[0009] As a preferred embodiment of the above scheme, the opening and closing structure of the catheter also includes a rotating shaft, the catheter seat includes baffles on both sides, the holding member is rotatably mounted on the baffles via the rotating shaft, and the holding member, rotating shaft, blocking member and catheter are arranged between the baffles.

[0010] As a preferred embodiment of the above solution, the blocking component includes a stop block, and the stop block is provided on both sides of the guide tube. The stop block is located at the rotation center of the pressing component and on one side of the pressing part. The pressing component and the rotating shaft are located above the guide tube. When the guide tube is open, one end of the pressing part abuts against the guide tube.

[0011] As a preferred embodiment of the above scheme, the clamping component is fixedly sleeved on the rotating shaft, and the two ends of the rotating shaft are respectively rotatably mounted on the baffle.

[0012] As a preferred embodiment of the above solution, the opening and closing structure of the catheter also includes a sleeve, which is fitted onto the catheter. Both the sleeve and the catheter are flexible structures, and the clamping part closes the catheter by clamping and deforming the sleeve and the catheter.

[0013] As a preferred embodiment of the above solution, the clamping member further includes an extension that extends from the clamping member in a direction away from the guide seat, and the extension is provided with a rotating handle.

[0014] As a preferred embodiment of the above solution, an angle is provided between the extension and the pressing part, and the rotation center of the pressing member is located at the connection between the extension and the pressing part.

[0015] Secondly, a catheter clamping structure is provided, including a catheter seat and a catheter opening and closing structure as described above, wherein the catheter opening and closing structure is disposed on the catheter seat.

[0016] Thirdly, a drainage catheter is provided, including a catheter and a clamping structure for the catheter as described above, wherein the catheter is connected to the clamping structure for the catheter. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the catheter when it is closed according to this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0020] Figure 3 for Figure 1 A partial sectional view of the structure;

[0021] Figure 4 This is a cross-sectional view of the catheter of this utility model when it is in operation;

[0022] Figure 5 for Figure 1 A top-view structural diagram. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "inner," "outer," and "bottom," etc., used in this specification to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and 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, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] A drainage catheter is a medical device used for clinical surgical drainage. It can guide pus, blood, and fluid accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing. As described in the background section, drainage catheters can be used for a relatively long time after being placed in the body. However, existing drainage catheters cannot be closed and require an external valve. The valve is generally threaded onto the interface of the catheter seat, which is prone to loosening and falling off, making it difficult to close the drainage catheter.

[0026] This invention provides an opening and closing structure that is not easily dislodged and allows for convenient and effective closing and opening of the drainage catheter. The embodiments of this invention are described in detail below, wherein the front, top, and left directions in the embodiments are... Figure 2 , Figure 5 The directions of the arrows in the image.

[0027] Example 1

[0028] See Figures 1 to 5This utility model provides a catheter opening and closing structure, including a clamping member 2 rotatably mounted on a catheter seat 1. The clamping member 2 includes a clamping portion 21. When the catheter 3 is open, the clamping portion 21 is positioned on one side of the catheter 3. By rotating the clamping member 2, the clamping portion 21 clamps the catheter 3, closing the catheter 3. The catheter opening and closing structure also includes a blocking member 4, which is mounted on the catheter seat 1. The blocking member 4 is used to prevent the clamping portion 21 from continuing to rotate towards the catheter 3 after closing the catheter 3, to prevent the clamping portion 21 from excessively compressing the catheter 3 and damaging it. The blocking member 4 includes a stop block 41, which is located at the rotation center of the clamping member 2 and on one side of the clamping portion 21.

[0029] The opening and closing structure of the conduit also includes a rotating shaft 5. The conduit seat 1 includes baffles 11 on both sides. The clamping member 2 is rotatably mounted on the baffles 11 via the rotating shaft 5. Specifically, in this embodiment, the clamping member 2 is fixedly sleeved on the rotating shaft 5, and both ends of the rotating shaft 5 are rotatably mounted on the baffles 11. The clamping member 2, the rotating shaft 5, the stop blocks 41, and the conduit 3 are arranged between the baffles 11. The baffles 11 are respectively provided with stop blocks 41, which are located on both sides of the conduit 3. The clamping member 2 and the rotating shaft 5 are arranged above the conduit 3. See [reference needed]. Figure 2 When the conduit 3 is open, one end of the holding part 21 abuts against the top of the conduit 3. That is, the holding part 21 is supported by the upward force from the conduit 3 and will not press against the conduit 3. By rotating the holding part 2 in the direction of the conduit 3 (i.e., counterclockwise), the holding part 21 presses against the conduit 3, deforming the conduit 3 and closing it. At this time, the holding force of the holding part 21 comes from the rotating shaft 5, which is rotatably connected to the conduit seat 1. The elastic force of the conduit 3 after deformation is less than the force that makes the rotating shaft 5 rotate on the conduit seat 1. Therefore, the holding part 21 presses against the conduit 3 to achieve locking, and the conduit 3 remains closed. In other embodiments, a locking structure (not shown) can also be provided on the rotating shaft 5 when the rotating shaft 5 rotates. When the holding part 21 closes the conduit 3, the locking structure can fix the rotating shaft 5 on the conduit seat 1 so that the rotating shaft 5 will not rotate. This further prevents the holding part 21 from rotating and shifting when pressing against the conduit 3, which would cause the conduit 3 to fail to close. When it is necessary to open the conduit 3 again, simply rotate the clamping member 2 clockwise so that the clamping part 21 does not clamp the conduit 3.

[0030] See Figure 3In this embodiment, the stop block 41 is an elongated strip structure extending vertically. The stop block 41 is fixed to the side wall of the baffle 11 facing the conduit 3. The stop block 41 is located in front of the holding member 2, with its upper end higher than the upper end of the conduit 3 and its lower end higher than the lower end of the conduit 3. The opening and closing structure of the conduit 3 also includes a sleeve 6, which is sleeved on the conduit 3. Both the sleeve 6 and the conduit 3 are flexible structures. The holding member 21 closes the conduit 3 by pressing and deforming the sleeve 6 and the conduit 3. In this embodiment, the sleeve 6 is a silicone tube, and the conduit 3 is a tube. The sleeve 6 is sleeved on the portion of the conduit 3 near the conduit seat 1. The sleeve 6 can be attached to the conduit 3 by adhesive. The sleeve 6 prevents the holding member 21 from directly pressing on the conduit 3 and causing damage to the conduit 3.

[0031] The clamping member 2 also includes an extension 22, which extends from the clamping member 21 away from the guide tube seat 1. The extension 22 is equipped with a rotating handle 23, which facilitates rotation of the clamping member 2. The rotating handle 23 has a cylindrical structure for easy gripping. An angle, specifically an obtuse angle, is provided between the extension 22 and the clamping member 21 to ensure that the extension 22 is away from the guide tube seat 1, allowing for easy rotation of the clamping member 2. The rotation center of the clamping member 2 is located at the connection between the extension 22 and the clamping member 21; specifically, the rotating shaft 5 is connected at the connection between the extension 22 and the clamping member 21. (See also...) Figure 5 In this embodiment, the width of the holding member 2 extends in the left-right direction. The width of the holding part 21 is equal to the width of the extension part 22 and is greater than the distance between the two stops 41. In this way, after the holding member 2 holds the conduit 3, if it continues to rotate counterclockwise due to external force or other factors, the holding part 21 will be blocked by the lower end of the stop 41. This avoids the holding part 21 from excessively pressing the sleeve 6 and the conduit 3, causing damage to the sleeve 6 and the conduit 3. The stop 41 can also cooperate with the extension part 22 to limit the extension part 22 and prevent the holding member 2 from rotating clockwise downward due to external force or other factors, thus preventing it from pressing the conduit 3.

[0032] This utility model features a clamping member 2 rotatably mounted on the conduit seat 1. When the conduit is open 3, one end of the clamping member 21 rests against the conduit 3 without clamping it. By rotating the clamping member 2, the clamping member 21 clamps the conduit 3, thus closing it. This allows for convenient and effective opening and closing of the conduit 3. Furthermore, since the clamping member 2 is rotatably mounted on the conduit seat 1, compared to valves that are threaded onto the interface 12 of the conduit seat 1, the clamping member 2 is less likely to fall off the conduit seat 1, making maintenance convenient.

[0033] Example 2

[0034] See Figures 1 to 5 This utility model provides a catheter clamping structure, including a catheter seat 1 and a catheter opening and closing structure as described above, wherein the catheter opening and closing structure is disposed on the catheter seat 1.

[0035] Example 3

[0036] See Figures 1 to 5 This utility model provides a drainage catheter, including a catheter 3 and a clamping structure for the catheter as described above. The catheter 3 is connected to the clamping structure. A catheter seat 1 has an interface 12, and the catheter 3 is connected to the interface 12. The catheter 3 is fixed to the catheter seat 1. Specifically, the catheter 3 can be fixed to the catheter seat 1 by adhesive bonding. In another embodiment, the catheter 3 can be first bonded to a sleeve 6, and then the sleeve 6 can be bonded to the catheter seat 1. The front end of the catheter 3 has an end through hole 31 and several side holes 32. The catheter 3 achieves drainage through the end through hole 31 and the side holes 32. The catheter seat 1 is connected to the rear end of the catheter 3.

[0037] When using the drainage catheter of this utility model, the front end of the catheter 3 is placed inside the human body, while the catheter seat 1 and the clamping member 2 are placed outside the body. During drainage, one end of the clamping part 21 abuts against the catheter 3 without clamping it, and the catheter 3 is in a conductive state. When it is necessary to close the catheter 3, the clamping member 2 is rotated counterclockwise by turning the handle 23. The clamping part 21 clamps the sleeve 6 and the catheter 3, deforming the catheter 3 and closing it. When it is necessary to open the catheter 3 again, the clamping member 2 is rotated clockwise so that the clamping part 21 does not clamp the catheter 3. The clamping member 2 is rotatably set on the catheter seat 1. Compared with the valve that is threadedly connected to the interface 12 of the catheter seat 1, the clamping member 2 is not easy to fall off the catheter seat 1, making maintenance convenient.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An opening and closing structure for a catheter, characterized in that, The device includes a pressure member (2) rotatably mounted on the catheter seat (1). The pressure member (2) includes a pressure part (21). By setting the pressure member (2), the pressure part (21) is positioned on one side of the catheter (3) to open the catheter (3). By rotating the pressure member (2), the pressure part (21) presses against the catheter (3) to close the catheter (3).

2. The opening and closing structure of the catheter according to claim 1, characterized in that, It also includes a blocking member (4), which is disposed on the conduit seat (1) and is used to prevent the holding part (21) from continuing to rotate toward the conduit (3) after the conduit (3) is closed.

3. The opening and closing structure of the catheter according to claim 2, characterized in that, It also includes a rotating shaft (5), the catheter seat (1) includes baffles (11) on both sides, the pressing member (2) is rotatably disposed on the baffle (11) via the rotating shaft (5), and the pressing member (2), the rotating shaft (5), the blocking member (4) and the catheter (3) are disposed between the baffle (11).

4. The opening and closing structure of the catheter according to claim 3, characterized in that, The blocking member (4) includes a stop block (41), and the stop block (41) is provided on the baffle (11). The stop block (41) is located on both sides of the conduit (3). The stop block (41) is located at the rotation center of the pressing member (2) and on one side of the pressing part (21). The pressing member (2) and the rotating shaft (5) are located above the conduit (3). When the conduit (3) is open, one end of the pressing part (21) abuts against the conduit (3).

5. The opening and closing structure of the catheter according to claim 3, characterized in that, The pressing member (2) is fixedly sleeved on the rotating shaft (5), and the two ends of the rotating shaft (5) are respectively rotatably mounted on the baffle (11).

6. The opening and closing structure of the catheter according to claim 1, characterized in that, It also includes a sleeve (6), which is sleeved on the conduit (3). Both the sleeve (6) and the conduit (3) are flexible structures. The pressing part (21) closes the conduit (3) by pressing and deforming the sleeve (6) and the conduit (3).

7. The opening and closing structure of the catheter according to claim 1, characterized in that, The holding member (2) further includes an extension (22) which extends from the holding member (21) in a direction away from the conduit seat (1) and is provided with a rotating handle (23).

8. The opening and closing structure of the catheter according to claim 7, characterized in that, An angle is provided between the extension (22) and the pressing part (21), and the rotation center of the pressing member (2) is located at the connection between the extension (22) and the pressing part (21).

9. A clamping structure for a catheter, characterized in that, It includes a catheter seat (1) and an opening and closing structure for the catheter as described in any one of claims 1-8, wherein the opening and closing structure for the catheter is disposed on the catheter seat (1).

10. A drainage catheter, characterized in that, It includes a catheter (3) and a clamping structure for the catheter as described in claim 9, wherein the catheter (3) is connected to the clamping structure for the catheter.

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