Auxiliary device for sealing central venous catheter

Abstract

The utility model belongs to the technical field of venous catheter sealing tools, and particularly relates to a central venous catheter sealing auxiliary device which comprises an insertion tube, the top of the insertion tube is connected with a first connecting tube and a second connecting tube in a penetrating mode, and a second baffle ring is fixed to the outer wall of the upper end of the first connecting tube. And a third baffle ring is fixed to the outer wall of the upper end of the first connecting pipe, the outer side of the upper end of the first connecting pipe is sleeved with a first pipe sealing sleeve, and the first pipe sealing sleeve comprises a sleeve, a supporting hopper, a plugging ball and a connecting strip. The supporting hopper is arranged on the inner wall of the sleeve and located above the end of the first connecting pipe, the plugging ball is arranged above the supporting hopper, the plugging ball is plugged in the hole in the top face of the supporting hopper under the supporting of the connecting strip, plugging of the first connecting pipe below is achieved, and when medical staff need to conduct infusion or liquid extraction, the sleeve can slide downwards, so that the medical staff can conduct infusion or liquid extraction conveniently. And the end of the first connecting pipe penetrates through the top of the supporting hopper and then jacks the plugging ball open, so that communication with an external pipeline is facilitated, and sliding operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of venous catheter sealing tools, specifically relating to a central venous catheter sealing auxiliary device. Background Technology

[0002] Central venous catheters are a type of intravascular catheter placed in a large vein. The other end of the catheter is usually connected to multiple tubing for injecting or draining fluids. When not delivering fluids, the catheter ends are usually sealed with caps or threads to prevent contamination. However, conventional capping or threaded connections are inconvenient, as the caps are difficult to install and remove, and they are prone to falling off and being lost, affecting their use.

[0003] Therefore, a device for sealing intravenous catheters is needed. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a central venous catheter sealing auxiliary device, which features stable connection, convenient operation, and strong practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a central venous catheter sealing auxiliary device, comprising an insertion tube, a first connecting tube and a second connecting tube being connected through the top of the insertion tube, a second retaining ring being fixed to the upper outer wall of the first connecting tube, a third retaining ring being fixed to the upper outer wall of the first connecting tube, the third retaining ring being located above the second retaining ring, a first sealing sleeve being sleeved on the upper outer side of the first connecting tube, the first sealing sleeve comprising a sleeve, a support bucket, a sealing ball and a connecting strip, the lower end of the sleeve being movably sleeved between the second and third retaining rings, a support bucket being fixed to the middle of the inner wall of the sleeve, a sealing ball being provided above the support bucket, a connecting strip being symmetrically fixed to the top of the sealing ball, one end of the connecting strip being fixed to the inner wall of the sleeve, and the support bucket and the sealing ball being located above the top of the first connecting tube.

[0006] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, a limiting ring is fixed on the outer wall of the first connecting tube. The limiting ring is located between the second and third stop rings. Multiple limiting rings are provided, and the limiting rings are made of flexible material.

[0007] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, a limiting hole is provided in the middle of the bottom surface of the sleeve, one end of the first connecting tube passes through the limiting hole, and the limiting ring is located on both sides of the limiting hole.

[0008] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, a first positioning component is sleeved on the outside of the first connecting tube. The first positioning component includes a collar, a traction band, a first clamp, and a second clamp. The collar is sleeved on the outside of the first connecting tube. A first retaining ring is fixed on the outer wall of the first connecting tube. The collar is located between the first retaining ring and the second retaining ring. A traction band is fixedly connected to the outer wall of the collar. A first clamp is fixedly connected to the upper end of the traction band. A second clamp is provided on one side of the first clamp. Both the first clamp and the second clamp are located above the sleeve.

[0009] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, an adhesive patch is fixed to one side of the first clamp, a first arc-shaped groove is provided in the middle of the other side of the first clamp, a second arc-shaped groove is provided in the middle of one side of the second clamp, a connecting strip is fixed to the other side of the second clamp, and adhesive strips are symmetrically fixed on both sides of the connecting strip, with the adhesive strips located on one side of the adhesive patch.

[0010] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, the first arc-shaped groove is located on one side of the second arc-shaped groove.

[0011] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, a compression ring is fixedly connected to the top of the first connecting tube, and the compression ring is made of hollow material.

[0012] As a preferred technical solution of the central venous catheter sealing auxiliary device of this utility model, a second sealing sleeve is sleeved on the outside of the second connecting tube, and a second positioning component is sleeved on the outside of the second connecting tube. The second connecting tube and the first connecting tube have the same structure, the second sealing sleeve and the first sealing sleeve have the same structure, and the second positioning component and the first positioning component have the same structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In use, this utility model features a first connecting tube and a first sealing sleeve. Two retaining rings are set on the outer wall of the first connecting tube to block and limit the connection of the first sealing sleeve. Multiple limiting rings are set between the two retaining rings to position the connected sealing sleeve. A support bucket is set on the inner wall of the sleeve of the first sealing sleeve, located above the end of the first connecting tube. A sealing ball is set above the support bucket. The sealing ball, supported by the connecting strip, seals the hole on the top surface of the support bucket, thus sealing the first connecting tube below. The seal is tight. When medical staff need to administer or aspirate fluid, the sleeve can be slid downwards on the outside of the first connecting tube, so that the end of the first connecting tube passes through the top of the support bucket and pushes open the sealing ball, thereby facilitating connection with external pipelines. Compared with conventional threaded connections or directly sleeved end cap structures, the sleeve of this solution will not fall off or be lost, and the sliding operation is convenient, improving the convenience of operation for medical staff.

[0015] Furthermore, by setting a first positioning component on the outside of the first connecting pipe, the collar of the first positioning component is sleeved on the outside of the connecting pipe for limiting. A traction strap is set on one side of the collar to connect the first clamping plate. Both the first clamping plate and the second clamping plate are located above the sleeve. When the sleeve is slid down to expose the first connecting pipe for insertion into the external pipeline, the first clamping plate and the second clamping plate can be clamped on both sides of the external pipeline. The adhesive strap on the second clamping plate is wrapped around the adhesive patch on the outer wall of the first clamping plate to fix the external pipeline with the two clamping plates. At the same time, by pulling the traction strap, if the external pipeline is accidentally pulled, it can be positioned by the traction strap and the clamping plate to avoid the pipeline from accidentally falling off and improve the stability of operation. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a perspective sectional view of the first connecting pipe and the first sealing sleeve of this utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the first sealing sleeve of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the first positioning component of this utility model.

[0021] In the diagram: 1. Insertion tube; 2. First connecting tube; 21. First retaining ring; 22. Second retaining ring; 23. Limiting ring; 24. Third retaining ring; 25. Compression ring; 3. Second connecting tube; 4. First sealing sleeve; 41. Sleeve; 42. Support bucket; 43. Sealing ball; 44. Connecting strip; 45. Limiting hole; 5. Second sealing sleeve; 6. First positioning component; 61. Collar; 62. Pulling band; 63. First clamping plate; 64. Adhesive tape; 65. First arc groove; 66. Connecting band; 67. Second clamping plate; 68. Second arc groove; 69. Adhesive tape; 7. Second positioning component. Detailed Implementation

[0022] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-4 The present invention provides the following technical solution: a central venous catheter sealing auxiliary device, including an insertion tube 1, the top of which is connected to a first connecting tube 2 and a second connecting tube 3; the specific usage and principle of the above structure can be referred to in the prior art of venous catheter tools, the top of the first connecting tube 2 is fixedly connected to a compression ring 25, the compression ring 25 is made of hollow material, so that it is more stable when inserted into an external pipeline, and the second connecting tube 3 has the same structure as the first connecting tube 2.

[0025] Reference Figure 1 , Figure 2 and Figure 3As shown, specifically, a second retaining ring 22 is fixed to the upper outer wall of the first connecting pipe 2, and a third retaining ring 24 is fixed to the upper outer wall of the first connecting pipe 2. The third retaining ring 24 is located above the second retaining ring 22. A first sealing sleeve 4 is sleeved on the upper outer side of the first connecting pipe 2. The first sealing sleeve 4 includes a sleeve 41, a support bucket 42, a sealing ball 43, and a connecting strip 44. The lower end of the sleeve 41 is movably sleeved between the second retaining ring 22 and the third retaining ring 24. The sleeve 41 can move between the two retaining rings. A support bucket 42 is fixed in the middle of the inner wall of the sleeve 41. It is an inverted bucket-shaped structure with a hole at the top. A sealing ball 43 is located above the support bucket 42. Both the sealing ball 43 and the connecting strip 44 are made of elastic material and can be elastically squeezed onto the top of the support bucket 42, resulting in a good sealing effect. Connecting strips 44 are symmetrically fixed to the top of the sealing ball 43. 4. One end of the connecting strip 44 is fixed to the inner wall of the sleeve 41. The support bucket 42 and the sealing ball 43 are both located above the top of the first connecting pipe 2. The second sealing sleeve 5 is sleeved on the outside of the second connecting pipe 3. The second sealing sleeve 5 has the same structure as the first sealing sleeve 4. This solution replaces the conventional threaded connection cap or sleeve cap by sleeve 41 sleeved on the outside of the connecting pipe. This allows the support bucket 42 inside the sleeve 41 to block the top of the connecting pipe. The sealing ball 43 blocks the support bucket 42 to achieve the sealing of the connecting pipe. When medical staff need to inject or extract liquid, they can simply slide the sleeve 41 down on the outside of the connecting pipe, allowing the connecting pipe to pass through the top of the support bucket 42 and push open the sealing ball 43, thus achieving connection with the external pipeline. The operation is quick and convenient, and the sleeve 41 will not fall off or be lost, making it highly practical.

[0026] Reference Figure 2 and Figure 3 As shown, specifically, a limiting ring 23 is fixed on the outer wall of the first connecting pipe 2. The limiting ring 23 is located between the second retaining ring 22 and the third retaining ring 24. Multiple limiting rings 23 are provided. The limiting rings 23 are made of flexible material to enhance the positioning effect of the sleeve 41. A limiting hole 45 is provided in the middle of the bottom surface of the sleeve 41. One end of the first connecting pipe 2 passes through the limiting hole 45, and the limiting rings 23 are located on both sides of the limiting hole 45. This solution can stably position the sleeve 41 by setting multiple limiting rings 23, avoiding its self-slippage and affecting its use. At the same time, it can tightly seal the lower end of the sleeve 41.

[0027] Reference Figure 1 and Figure 4As shown, specifically, a first positioning assembly 6 is sleeved on the outer side of the first connecting pipe 2. The first positioning assembly 6 includes a collar 61, a pulling strap 62, a first clamping plate 63, and a second clamping plate 67. The collar 61 is sleeved on the outer side of the first connecting pipe 2. A first retaining ring 21 is fixed on the outer wall of the first connecting pipe 2. The collar 61 is located between the first retaining ring 21 and the second retaining ring 22, allowing the collar 61 to rotate and easily adjust the position of the top clamping plate according to usage needs. A pulling strap 62 is fixedly connected to the outer wall of the collar 61. The upper end of the pulling strap 62 is fixedly connected to the first clamping plate 63. A second clamping plate 67 is provided on one side of the first clamping plate 63. Both the first clamping plate 63 and the second clamping plate 67 are located above the sleeve 41. An adhesive tape 64 is fixed to one side of the first clamping plate 63. A first arc-shaped groove 65 is provided in the middle of the other side wall of the first clamping plate 63. A second arc-shaped groove 65 is provided in the middle of one side wall of the second clamping plate 67. The first arc-shaped groove 65 is located on one side of the second arc-shaped groove 68, and the two arc-shaped grooves can engage the external pipeline; a connecting strap 66 is fixed to the other side wall of the second clamping plate 67, and adhesive straps 69 are symmetrically fixed on both sides of the connecting strap 66. The adhesive straps 69 are located on one side of the adhesive sticker 64, and the two can be bonded together; a second positioning component 7 is sleeved on the outside of the second connecting pipe 3. The second positioning component 7 has the same structure as the first positioning component 6. After the external pipeline and the connecting pipe are connected by insertion, the first clamping plate 63 and the second clamping plate 67 can be engaged on the outside of the external pipeline. Through the adhesion of the adhesive strap 69 and the adhesive sticker 64, the two clamping plates clamp the external pipeline, positioning the external pipeline without affecting the flow of liquid. When the external pipeline is pulled by external force, it can be positioned by the pulling strap 62 and the clamping plates to avoid the pipeline from coming off and improve the stability of the operation of medical staff.

[0028] The working principle and usage process of this utility model are as follows: After an intravenous catheter is inserted into a patient, the sleeve 41 is fitted onto the outside of the connecting tube to seal it. The sealing ball 43 inside the sleeve 41 is sealed on the top of the support bucket 42 under the support of the connecting strip 44. The support bucket 42 is located at one end of the connecting tube, thereby sealing the connecting tube. When medical staff need to insert an external tube, they can simply slide the sleeve 41 on the outside of the connecting tube so that one end of the connecting tube passes through the support bucket 42 and then push the sealing ball 43 open. The operation is convenient and quick.

[0029] Furthermore, by attaching a positioning component to the outside of the connecting pipe, the two clamps of the positioning component can clamp the outside of the external pipe when it is inserted. When the external pipe is pulled by external force, it can be supported by the pulling strap 62 to prevent the external pipe from easily falling off and improve operational stability.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A central venous catheter locking aid device comprising an insertion tube (1), characterized in that: The top of the insertion tube (1) is connected to a first connecting tube (2) and a second connecting tube (3). A second retaining ring (22) is fixed to the upper outer wall of the first connecting tube (2), and a third retaining ring (24) is fixed to the upper outer wall of the first connecting tube (2). The third retaining ring (24) is located above the second retaining ring (22). A first sealing sleeve (4) is sleeved on the upper outer side of the first connecting tube (2). The first sealing sleeve (4) includes a sleeve (41), a support bucket (42), a sealing ball (43), and... The lower end of the sleeve (41) is movably sleeved between the second retaining ring (22) and the third retaining ring (24). A support bucket (42) is fixed in the middle of the inner wall of the sleeve (41). A sealing ball (43) is provided above the support bucket (42). A connecting strip (44) is symmetrically fixed on the top of the sealing ball (43). One end of the connecting strip (44) is fixed on the inner wall of the sleeve (41). The support bucket (42) and the sealing ball (43) are both located above the top of the first connecting pipe (2).

2. The central venous catheter sealing auxiliary device according to claim 1, characterized in that: A limiting ring (23) is fixed on the outer wall of the first connecting pipe (2). The limiting ring (23) is located between the second stop ring (22) and the third stop ring (24). There are multiple limiting rings (23), and the limiting ring (23) is made of flexible material.

3. The central venous catheter locking auxiliary device according to claim 2, characterized in that: The sleeve (41) has a limiting hole (45) in the middle of its bottom surface. One end of the first connecting pipe (2) passes through the limiting hole (45), and the limiting ring (23) is located on both sides of the limiting hole (45).

4. The central venous catheter locking auxiliary device according to claim 3, characterized in that: A first positioning component (6) is sleeved on the outside of the first connecting tube (2). The first positioning component (6) includes a collar (61), a pulling strap (62), a first clamping plate (63), and a second clamping plate (67). The collar (61) is sleeved on the outside of the first connecting tube (2). A first retaining ring (21) is fixed on the outer wall of the first connecting tube (2). The collar (61) is located between the first retaining ring (21) and the second retaining ring (22). A pulling strap (62) is fixedly connected to the outer wall of the collar (61). A first clamping plate (63) is fixedly connected to the upper end of the pulling strap (62). A second clamping plate (67) is provided on one side of the first clamping plate (63). The first clamping plate (63) and the second clamping plate (67) are both located above the sleeve (41).

5. The central venous catheter locking auxiliary device according to claim 4, characterized in that: An adhesive tape (64) is fixed to one side of the first clamping plate (63), and a first arc-shaped groove (65) is provided in the middle of the other side wall of the first clamping plate (63). A second arc-shaped groove (68) is provided in the middle of one side wall of the second clamping plate (67). A connecting strip (66) is fixed to the other side wall of the second clamping plate (67). Adhesive strips (69) are symmetrically fixed on both sides of the connecting strip (66), and the adhesive strips (69) are located on one side of the adhesive tape (64).

6. A central venous catheter sealing auxiliary device according to claim 5, characterized in that: The first arc-shaped groove (65) is located on one side of the second arc-shaped groove (68).

7. The central venous catheter locking accessory of claim 6, wherein: A compression ring (25) is fixedly connected to the top of the first connecting pipe (2), and the compression ring (25) is made of hollow material.

8. The central venous catheter locking auxiliary device according to claim 7, characterized in that: The second connecting tube (3) is fitted with a second sealing sleeve (5) on its outer side, and a second positioning component (7) is fitted with a second positioning component (7) on its outer side. The second connecting tube (3) and the first connecting tube (2) have the same structure. The second sealing sleeve (5) and the first sealing sleeve (4) have the same structure. The second positioning component (7) and the first positioning component (6) have the same structure.

Images