Drainage tube capable of preventing outward pulling and separating inner chamber and outer chamber
By setting a limiting device on the drainage tube, including a blocking block and a locking block, the infection problems caused by drainage tube slippage and drainage fluid accumulation are solved, achieving stable fixation of the drainage tube and infection prevention, and simplifying the operation.
Patent Information
- Application Number
- CN202422606428.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-28
AI Technical Summary
Existing drainage tubes are prone to slipping during use, and drainage fluid can accumulate at the drainage port, leading to infection. The operation is cumbersome and increases the workload of medical staff.
A limiting device, including a blocking block and a locking block, is fitted onto the body of the drainage tube. The blocking block is provided with a sliding groove and an elastic blocking plate. The expansion and retraction of the elastic blocking plate are controlled by pushing a switch. The locking block is connected to the blocking block to prevent the drainage tube from sliding and to block the communication between the inner and outer chambers.
It effectively prevents the drainage tube from slipping and the drainage fluid from flowing out, reduces the risk of infection, simplifies the operation process, and reduces the workload of medical staff.
Smart Images
Figure CN223627869U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to a drainage tube capable of preventing external pulling and separating inner and outer chambers. BACKGROUND
[0002] Drainage tube is used for clinical surgery drainage, and is used for guiding pus, blood and liquid accumulated in human body tissue or body cavity to the outside of the body to prevent postoperative infection and promote wound healing. There are many types of surgical drainage tubes used in clinical practice, which are mainly used for wounds, chest cavity, brain cavity, gastrointestinal tract, biliary tract and other parts. The drainage tube is generally made of silicone rubber or polyurethane. When in use, one end of the catheter is inserted into the drainage site of the body or wound, and the other end is connected with other external devices such as drainage connector or other external devices outside the body, and is drained to the outside of the body through the action of pressure such as internal pressure, gravity or negative pressure suction.
[0003] After the drainage tube is placed in the part needing drainage in clinical practice, it is usually necessary to cover it with an external dressing to prevent the drainage tube from sliding, and because the drainage liquid will accumulate at the drainage port, bacteria will breed and cause infection, so the dressing needs to be replaced frequently, which is complicated and increases the workload of medical staff. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a drainage tube capable of preventing external pulling and separating inner and outer chambers, which can block the communication between the drainage cavity and the outside world, prevent the accumulation of drainage liquid at the drainage port and cause infection, and prevent the drainage tube from sliding, thereby improving the sliding of the drainage tube and the infection of the drainage port in clinical practice.
[0005] To solve the above technical problems, the utility model adopts the technical scheme that:
[0006] A drainage tube capable of preventing external pulling and separating inner and outer chambers, comprising a drainage tube body, a limiting device is sleeved on the drainage tube body, and the limiting device comprises:
[0007] A blocking block is sleeved on the drainage tube body, a plurality of annularly distributed sliding grooves are formed in one end of the blocking block, and an elastic blocking piece is slidably arranged in the sliding groove; the end of the elastic blocking piece away from the blocking block is in an outwardly expanding arc shape; a first connecting structure is arranged on the outer wall of the blocking block, and a plurality of push switches connected with the elastic blocking piece are embedded in the first connecting structure; wherein the outer diameter of the blocking block is matched with the drainage port of the patient;
[0008] A locking block is arranged on the inner wall of the locking block, a second connecting structure is arranged on the locking block, the second connecting structure is matched with the first connecting structure for detachable connection, the locking block is sleeved on the outside of the blocking block through the second connecting structure, and the length of the locking block is less than the length of the blocking block.
[0009] Further, in the utility model, the push switch includes a strip-shaped groove and a push plate, the strip-shaped groove is opened in the outer wall of the blocking block and corresponds to the elastic blocking piece, the strip-shaped groove is communicated with the sliding groove, and the width of the strip-shaped groove is less than the width of the sliding groove.
[0010] Further, in the utility model, the strip-shaped groove is a stepped groove with a width gradually decreasing, and the push plate is limited in the stepped groove.
[0011] Further, in the utility model, the push plate is provided with an anti-skid part on the side away from the drainage tube body, and the anti-skid part is provided with anti-skid lines.
[0012] Further, in the utility model, the blocking block includes an integrated connecting end and an insertion end, the insertion end is one end of the blocking block close to the elastic blocking piece, the groove and the first connecting structure are located on the outer wall of the connecting end, the length of the locking block is less than or equal to the length of the connecting end, and when the drainage tube body is inserted into the drainage cavity, the insertion end is located inside the drainage cavity, and the connecting end is located outside the drainage cavity.
[0013] Further, in the utility model, the first connecting structure is an external thread, and the second connecting structure is an internal thread.
[0014] Further, in the utility model, the blocking block, the elastic blocking piece and the locking block are all made of medical silicon rubber.
[0015] Further, in the utility model, the blocking block is slidably sleeved on the outer wall of the drainage tube body.
[0016] Further, in the utility model, the inner wall of the blocking block is attached to the outer wall of the drainage tube body.
[0017] Further, in the utility model, the elastic blocking piece has a π / 2 radian.
[0018] The utility model has at least the following advantages or beneficial effects:
[0019] The utility model discloses a limit device is set on the drainage tube body, and the limit device is inserted into the drainage port when draining, and the plurality of arc elastic blocking pieces are slid through the blocking piece one end, when the elastic blocking piece slides out the blocking piece, and its elasticity is released and expands outward, and the plurality of elastic blocking pieces expand synchronously and form the umbrella-shaped blocking structure, can limit the outward slippage of the drainage tube body, and can prevent the outflow of the drainage liquid in the drainage cavity, and the elastic blocking piece is pushed and pulled through the push switch, realizes sliding out and sliding in, and the first connecting structure is arranged on the outer wall of the blocking piece, and the second connecting structure is arranged on the inner wall of the locking block, when the elastic blocking piece is pushed out, the locking block is connected to the outside of the blocking piece, can limit the slippage of the blocking piece in the drainage cavity, and prevents the slippage of the drainage tube body. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0021] Fig. 1 The structure schematic diagram of the drainage tube of preventing external pulling and separating inner and outer chambers when not locking is provided for the embodiment of the application.
[0022] Fig. 2 The sectional view of the blocking piece is provided for the embodiment of the application.
[0023] Fig. 3 The structure schematic diagram of the drainage tube of preventing external pulling and separating inner and outer chambers when locking is provided for the embodiment of the application.
[0024] Figure: 1-drainage tube body, 2-blocking piece, 21-elastic blocking piece, 22-bar slot, 23-pushing plate, 24-anti-skid part, 25-insertion end, 26-connection end, 27-external thread, 3-locking block, 31-internal thread. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0027] Embodiment
[0028] Please refer to Figs. 1-3 , which is a structural schematic view of the drainage tube for preventing external pulling and separating the inner and outer chambers in the embodiments of the present application;
[0029] The present embodiment provides a drainage tube for preventing external pulling and separating the inner and outer chambers, comprising a drainage tube body 1, a limiting device is sleeved on the drainage tube body 1, and the limiting device comprises:
[0030] A blocking block 2 is sleeved on the drainage tube body 1, a plurality of annularly distributed sliding grooves are formed in one end of the blocking block 2, and an elastic blocking piece 21 is slidably arranged in the sliding grooves; the end of the elastic blocking piece 21 away from the blocking block 2 is in an outwardly expanding arc shape; a first connecting structure is arranged on the outer wall of the blocking block 2 and a plurality of push switches connected with the elastic blocking piece 21 are embedded in the first connecting structure; wherein the outer diameter of the blocking block 2 is adapted to the drainage port of the patient;
[0031] A locking block 3 is arranged on the outer wall of the blocking block 2, a second connecting structure is arranged on the inner wall of the locking block 3, the second connecting structure is detachably connected with the first connecting structure, and the locking block 3 is sleeved on the outside of the blocking block 2 through the second connecting structure; the length of the locking block 3 is less than the length of the blocking block 2.
[0032] In the following, the drainage tube for preventing external pulling and separating the inner and outer chambers in the present exemplary embodiment will be further described.
[0033] In some embodiments of the present application, the blocking block 2 is provided on the drainage tube body 1, the blocking block 2 has a through-cylindrical structure, a plurality of annularly distributed sliding grooves are formed on one end of the blocking block 2 and extend along the axial direction of the blocking block 2, an elastic blocking piece 21 is slidably arranged in the sliding grooves, the elastic blocking piece 21 can slide out of or into the blocking block 2 along the axial direction of the blocking block 2, the end of the elastic blocking piece 21 away from the blocking block 2 is in an outwardly expanding arc shape, so that the elastic blocking piece 21 is in an expanded state after sliding out, a first connecting structure is arranged on the outer wall of the blocking block 2, and a plurality of push switches connected with the elastic blocking piece 21 are embedded in the first connecting structure, the push switches are used to control the sliding of the elastic blocking piece 21, the outer diameter of the blocking block 2 is matched with the drainage port of the patient, so that the blocking block 2 can be inserted into the drainage port, one end of the blocking block 2 having the elastic blocking piece 21 can be inserted into the drainage cavity, and the elastic blocking piece 21 can block the drainage cavity after being expanded, thereby limiting the outward sliding of the blocking block 2 and the drainage tube body 1, and blocking the drainage liquid to reduce the outflow of the drainage liquid and the breeding of bacteria.
[0034] As a preferred embodiment, the push switch includes a strip-shaped groove 22 and a push plate 23, the strip-shaped groove 22 is formed on the outer wall of the blocking block 2 and corresponds to the elastic blocking piece 21, the strip-shaped groove 22 is communicated with the sliding groove, and the width of the strip-shaped groove 22 is smaller than that of the sliding groove; the push plate 23 is slidably connected in the strip-shaped groove 22, and the push plate 23 is connected with one end of the elastic blocking piece 21 close to the blocking block 2. By controlling the sliding of the push plate 23 in the strip-shaped groove 22, the sliding of the elastic blocking piece 21 is controlled, so that the blocking block 2 can be inserted into the drainage port, and the elastic blocking piece 21 can be pushed out and expanded into the drainage cavity. The width of the strip-shaped groove 22 is designed to be smaller than that of the sliding groove, on the one hand, the area occupied by the strip-shaped groove 22 on the outer wall of the blocking block 2 is reduced, so that the first connecting structure is facilitated to be arranged and the connection between the first connecting structure and the locking block 3 is facilitated; on the other hand, the width of the sliding groove is larger, so that the width of the elastic blocking piece 21 is larger, and the blocking area of the elastic blocking piece 21 is larger, so that the blocking effect is better.
[0035] As a preferred embodiment, the strip-shaped groove 22 is a stepped groove with a decreasing slot width, and the push plate 23 is limited in the stepped groove. That is, the push plate 23 is located at the bottom of the stepped groove, and the slot at the top is smaller, so that the push plate 23 will not slide out of the stepped groove.
[0036] As a preferred embodiment, the push plate 23 is provided with an anti-skid part 24 away from the drainage tube body 1, and the anti-skid part 24 is provided with anti-skid lines. Specifically, an oval-shaped anti-skid part 24 matched with the size of the thumb can be arranged on the outer side of the push plate 23, and the anti-skid lines are arranged on the anti-skid part 24, so that the sliding of the push plate 23 is facilitated to be controlled by the operator.
[0037] In some embodiments of the present application, the inner wall of the locking block 3 is provided with a second connecting structure, which is detachably connected with the first connecting structure, and the locking block 3 is sleeved outside the blocking block 2 through the second connecting structure; the length of the locking block 3 is less than the length of the blocking block 2. By setting the first connecting structure and the second connecting structure, when the blocking block 2 is inserted into the drainage port and the elastic blocking piece 21 is pushed out, the locking block 3 can be connected with the blocking block 2. Since the locking block 3 is sleeved outside the blocking block 2, its outer diameter is greater than the diameter of the drainage port, which can limit the sliding of the blocking block 2 and the drainage tube body 1 inward, preventing the sliding of the drainage tube body 1.
[0038] As a preferred embodiment, the blocking block 2 includes an integrated connecting end 26 and an insertion end 25, the insertion end 25 being the end of the blocking block 2 close to the elastic blocking piece 21; the groove and the first connecting structure are located on the outer wall of the connecting end 26; the length of the locking block 3 is less than or equal to the length of the connecting end 26; when the drainage tube body 1 is inserted into the drainage cavity, the insertion end 25 is located inside the drainage cavity, and the connecting end 26 is located outside the drainage cavity. The outer wall of the insertion end 25 is smooth and is inserted into the drainage cavity, which will not cause discomfort to the patient; the connecting end 26 is located outside the drainage cavity and is connected with the locking block 3.
[0039] As a preferred embodiment, the first connecting structure is an external thread 27, and the second connecting structure is an internal thread 31. That is, the locking block 3 is connected with the blocking block 2 by a threaded connection, which is convenient to disassemble and assemble. When the blocking block 2 is partially inserted into the drainage cavity and the elastic blocking piece 21 is pushed out, the locking block 3 can be fixed by being screwed onto the blocking block 2.
[0040] As a preferred embodiment, the blocking block 2, the elastic blocking piece 21 and the locking block 3 are all made of medical silicone rubber material, which is biocompatible and not easy to cause harm to the patient, and has a certain softness and elasticity. In particular, the elastic blocking piece 21 is relatively thin in thickness and can be stored in the sliding groove during insertion of the drainage tube, reducing the discomfort caused to the patient.
[0041] As a preferred embodiment, the blocking block 2 is slidably sleeved on the outer wall of the drainage tube body 1. That is, the limiting device as a whole can slide up and down on the drainage tube body 1, and the position thereof can be adjusted to adjust the length of the drainage.
[0042] As a preferred embodiment, the inner wall of the blocking block 2 is attached to the outer wall of the drainage tube body 1, which can prevent the drainage liquid in the drainage cavity from leaking out of the connecting gap, and a certain pushing and pulling force needs to be applied to move the position, avoiding the sliding of the blocking block 2 during the drainage process.
[0043] As a preferable embodiment, the arc of the elastic blocking piece 21 is π / 2, so that when the elastic blocking piece 21 is slid out of the sliding groove, it expands to be perpendicular to the axis of the blocking block 2, and can achieve a good blocking effect.
[0044] The preferred embodiments of the present application have been described above, but the present application is not limited to the above. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A drainage tube that prevents external pulling and separates internal and external chambers, characterized by, The drainage tube body is sleeved with a limiting device, the limiting device comprises: A blocking block is sleeved on the drainage tube body, one end of the blocking block is provided with a plurality of annularly distributed sliding grooves, and an elastic blocking piece is slidably arranged in the sliding groove; the end of the elastic blocking piece away from the blocking block is outwardly expanded in an arc shape; the outer wall of the blocking block is provided with a first connecting structure and embedded with a plurality of push switches connected with the elastic blocking piece respectively; wherein the outer diameter of the blocking block is matched with the drainage port of the patient; A locking block is provided with a second connecting structure on the inner wall, the second connecting structure is matched with the first connecting structure for detachable connection, and the locking block is sleeved outside the blocking block through the second connecting structure; the length of the locking block is less than the length of the blocking block.
2. The drain tube of claim 1, wherein, The push switch comprises a strip-shaped groove and a push plate, the strip-shaped groove is arranged on the outer wall of the blocking block and corresponds to the elastic blocking piece, the strip-shaped groove is communicated with the sliding groove, and the width of the strip-shaped groove is less than the width of the sliding groove; the push plate is slidably connected in the strip-shaped groove, and the push plate is connected with the end of the elastic blocking piece close to the blocking block.
3. The drain tube of claim 2, wherein, The strip-shaped groove is a stepped groove with a decreasing slot width, and the push plate is limited in the stepped groove.
4. The drain tube of claim 2 or 3, wherein, The side of the push plate away from the drainage tube body is provided with an anti-skid part, and the anti-skid part is provided with anti-skid lines.
5. The drain tube of claim 1, wherein, The blocking block comprises an integrated connecting end and an insertion end, the insertion end is the end of the blocking block close to the elastic blocking piece; the sliding groove and the first connecting structure are located on the outer wall of the connecting end; the length of the locking block is less than or equal to the length of the connecting end; when the drainage tube body is inserted into the drainage cavity, the insertion end is located inside the drainage cavity, and the connecting end is located outside the drainage cavity.
6. The drain tube of claim 1 or 5, wherein, The first connecting structure is an external thread, and the second connecting structure is an internal thread.
7. The drain tube of claim 1, wherein, The blocking block, the elastic blocking piece and the locking block are all made of medical silicone rubber.
8. The drain tube of claim 7, wherein, The blocking block is slidably sleeved on the outer wall of the drainage tube body.
9. The drain tube of claim 8, wherein, The inner wall of the blocking block is attached to the outer wall of the drainage tube body.
10. The drain tube of claim 1 or 7, wherein, The elastic blocking piece has a π / 2 radian arc.