Deep venous catheter with sealing structure
By setting up a balloon and sealing structure in the deep vein catheter, the problem of anticoagulant diffusion is solved, and the effective sealing and rapid use of the catheter is achieved.
Patent Information
- Application Number
- CN202421931236.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-09
AI Technical Summary
When existing deep venous catheters are not in use, anticoagulants in the catheter will spread into the blood vessels, and long-term anticoagulation effect cannot be guaranteed.
A airbag is installed in the deep vein catheter, and the expansion and contraction of the airbag is controlled through the airflow pipe, blocking the drug outlet and preventing the diffusion of anticoagulants; at the same time, a sealing plug and rubber sealing clip are provided to enhance sealing.
It prevents the diffusion of anticoagulants when not in use, ensures the anticoagulant effect in the catheter, and quickly resumes use when needed, improving the convenience and safety of use.
Smart Images
Figure CN223170151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of deep vein catheters, in particular to a deep vein catheter with a sealing structure. Background Technique
[0002] A deep vein catheter is a medical device, which is a pipeline placed inside a deep vein (such as femoral vein, subclavian vein, internal jugular vein) after skin puncture. This kind of catheter can be used for long-term intravenous infusion, input of hypertonic fluid and hyperalimentation solution, measurement of central venous pressure. The use of deep vein catheter can reduce the complications of peripheral veins, provide a stable venous access, and facilitate emergency or rapid-onset intravenous injection treatment.
[0003] In the prior art, the deep vein catheter is fixed in the blood vessel at the patient's collarbone. When not in use, anticoagulant is injected into the catheter, and then the opening outside the body is sealed, and the anticoagulant is left in the catheter to avoid blood entering the catheter and coagulating inside. Since the opening on the side extending into the vein is always open, the anticoagulant will diffuse into the blood vessel, and the anticoagulant effect inside the catheter cannot be guaranteed after a long time.
[0004] Therefore, those skilled in the art provide a deep vein catheter with a sealing structure to solve the problems put forward in the above background technique. Content of the Utility Model
[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and a deep vein catheter with a sealing structure is proposed. By arranging an air bag inside the deep vein catheter mechanism and an air delivery pipe on the outer surface, when the deep vein catheter is no longer needed, the air bag can be inflated through the air delivery pipe. After the air bag expands, it blocks the medicine outlet, so as to prevent the anticoagulant from diffusing into the blood vessel. When the deep vein catheter needs to be used, the gas inside the air bag is released, and then it can be used. It is fast, convenient and easy to use.
[0006] To achieve the above purpose, the utility model provides the following technical solution: a deep vein catheter with a sealing structure, including a connection box and a rubber sealing clip. One side of the connection box is fixedly provided with a deep vein catheter mechanism. The middle position on the other side of the connection box is fixedly provided with an air delivery pipe. The front end position on the other side of the connection box is fixedly provided with a first infusion pipe. The rear end position on the other side of the connection box is fixedly provided with a second infusion pipe. The other sides of the first infusion pipe, the second infusion pipe and the air delivery pipe are all fixedly provided with input ports. A stabilizing mechanism is fixedly provided on the outer side of each of the input ports;
[0007] The deep vein catheter mechanism includes a catheter body. The middle position inside the catheter body is fixedly provided with a second internal pipe. One side of the second internal pipe is fixedly provided with an air bag. Each of the stabilizing mechanisms includes a fixed box.
[0008] Furthermore, a spring rod is fixedly arranged on the inner wall of one side of the plurality of fixed boxes, and a slider is fixedly arranged on the other side of the spring rod.
[0009] Furthermore, a damping rotating shaft is fixedly arranged on the other side of the slider, and a clamping block is fixedly arranged on the other side of the damping rotating shaft.
[0010] Furthermore, a sealing plug is clamped on the other side of the plurality of input ports, and a card slot is formed in the middle position on the other side of the plurality of sealing plugs.
[0011] Furthermore, a first internal tube is fixedly arranged at the front end inside the catheter body, and a third internal tube is fixedly arranged at a position away from the first internal tube inside the catheter body.
[0012] Furthermore, a medicine outlet is fixedly arranged on one side of the catheter body.
[0013] Furthermore, rubber sealing clips are clamped on the outer surfaces of the first infusion tube, the second infusion tube and the gas transmission tube.
[0014] The utility model has the following beneficial effects:
[0015] 1. For the deep vein catheter with a sealing structure proposed by the utility model, in the prior art, since the opening on the side extending into the vein is always open, the anticoagulant will diffuse into the blood vessel, and it is impossible to ensure the anticoagulant effect in the catheter after a long time. In this device, an airbag is arranged inside the deep vein catheter mechanism, and a gas transmission tube is arranged on the outer surface. When the deep vein catheter is no longer needed, the airbag can be inflated through the gas transmission tube. After the airbag expands, it blocks the medicine outlet, thus preventing the anticoagulant from diffusing into the blood vessel. When the deep vein catheter needs to be used, the gas inside the airbag is released, and then it can be used. It is fast, convenient and easy to use.
[0016] 2. For the deep vein catheter with a sealing structure proposed by the utility model, this device is provided with a deep vein catheter mechanism, which is beneficial to controlling the opening and closing of the opening on the side of the deep vein catheter extending into the blood vessel. When in use, it is opened to allow blood to flow inside the catheter, and when not in use, it is closed to prevent blood from entering the catheter, which is convenient for control. This device is also provided with a sealing plug and rubber sealing clips, which are beneficial to enhancing the sealing performance when not in use. This device is also provided with a stabilizing mechanism, which is beneficial to preventing the sealing plug from accidentally slipping off, enhancing the sealing performance of this device and improving the use safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is an isometric schematic view of the utility model;
[0018] Figure 2 is a side isometric schematic view of the utility model;
[0019] Figure 3 It is a front sectional view of the stability mechanism of the present utility model;
[0020] Figure 4 It is an axonometric view of the stability mechanism of the present utility model;
[0021] Figure 5 It is a front sectional view of the present utility model.
[0022] Legend description:
[0023] 1. Connection box; 2. Deep vein catheter mechanism; 3. Air delivery pipe; 4. First infusion pipe; 5. Second infusion pipe; 6. Rubber sealing clip; 7. Sealing plug; 8. Stability mechanism; 9. Input port; 10. Card slot; 201. Catheter body; 202. First internal pipe; 203. Second internal pipe; 204. Third internal pipe; 205. Airbag; 206. Medicine outlet; 801. Fixed box; 802. Slide block; 803. Damping rotating shaft; 804. Clamping block; 805. Spring rod. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] Refer to Figure 1 、 Figure 2 An embodiment provided by the present utility model: a deep vein catheter with a sealing structure, including a connection box 1 and a rubber sealing clip 6. A gas delivery pipe 3 is fixedly arranged at the middle position on the other side of the connection box 1, a first infusion pipe 4 is fixedly arranged at the front end position on the other side of the connection box 1, a second infusion pipe 5 is fixedly arranged at the rear end position on the other side of the connection box 1. Input ports 9 are fixedly arranged on the other sides of the first infusion pipe 4, the second infusion pipe 5 and the gas delivery pipe 3. Sealing plugs 7 are snap-connected to the other sides of the plurality of input ports 9. A card slot 10 is opened at the middle position on the other side of the plurality of sealing plugs 7. Rubber sealing clips 6 are snap-connected to the outer surfaces of the first infusion pipe 4, the second infusion pipe 5 and the gas delivery pipe 3;
[0026] Specifically, the connection box 1 is conducive to the fixed installation and connection of the gas delivery pipe 3, the first infusion pipe 4 and the second infusion pipe 5. The gas delivery pipe 3 is conducive to injecting gas into the airbag 205, which is conducive to controlling the opening and closing of the medicine outlet 206. The arrangements of the first infusion pipe 4 and the second infusion pipe 5 are conducive to the infusion of the liquid medicine into the catheter body 201. The input port 9 is conducive to connecting with the input device. The arrangements of the sealing plug 7 and the rubber sealing clip 6 are conducive to making the catheter enter a sealed state after it is not used, preventing the loss of the internal anticoagulant.
[0027] Refer to Figure 3 、 Figure 4 Figure 4 , a stabilizing mechanism 8 is fixedly arranged on the outer side of each of the plurality of input ports 9. The plurality of stabilizing mechanisms 8 include a fixing box 801. A spring rod 805 is fixedly arranged on the inner wall of one side of the plurality of fixing boxes 801. A slider 802 is fixedly arranged on the other side of the spring rod 805. A damping rotating shaft 803 is fixedly arranged on the other side of the slider 802. A clamping block 804 is fixedly arranged on the other side of the damping rotating shaft 803;
[0028] Specifically, the fixing box 801 is beneficial to the fixed installation of the spring rod 805. The spring rod 805 is beneficial to applying pressure to the slider 802 and facilitating the reset of the slider 802. The slider 802 is beneficial to the fixed installation of the damping rotating shaft 803. The damping rotating shaft 803 is beneficial to adjusting the angle of the clamping block 804. The clamping block 804 is beneficial to cooperating with the clamping groove 10 to clamp and fix the sealing plug 7, which is beneficial to enhancing the stability of the sealing plug 7 during use.
[0029] Refer to Figure 5 Figure 5 , a deep vein catheter mechanism 2 is fixedly arranged on one side of the connection box 1. The deep vein catheter mechanism 2 includes a catheter body 201. A second inner tube 203 is fixedly arranged at the middle position inside the catheter body 201. An airbag 205 is fixedly arranged on one side of the second inner tube 203. A first inner tube 202 is fixedly arranged at the front end position inside the catheter body 201. A third inner tube 204 is fixedly arranged at a position inside the catheter body 201 far from the first inner tube 202. A medicine outlet 206 is fixedly arranged on one side of the catheter body 201;
[0030] Specifically, the second inner tube 203 is beneficial to delivering gas into the airbag 205. After the airbag 205 is inflated, it is beneficial to block the medicine outlet 206 to form a seal and prevent blood from entering the inside of the catheter body 201. The arrangements of the first inner tube 202 and the third inner tube 204 are beneficial to the medicine liquid entering the catheter body 201. The medicine outlet 206 is beneficial to the medicine entering the human body.
[0031] Working principle: When the deep vein catheter of this device is not in use, first inject normal saline or anticoagulant into the catheter body 201 to discharge the blood in the catheter body 201, and then inflate the airbag 205 through the air delivery pipe 3 until the airbag 205 blocks the medicine outlet 206. The airbag 205 can prevent blood from entering the catheter body 201 and coagulating inside;
[0032] Secondly, clamp the rubber sealing clips 6 on the gas pipeline 3, the first infusion tube 4 and the second infusion tube 5 respectively. Then, snap the sealing plug 7 into the input port 9. After that, pull out the slider 802, rotate the clamping block 804 to align with the clamping groove 10, and then loosen the clamping block 804. The spring rod 805 drives the clamping block 804 to be clamped and fixed with the clamping groove 10, which is beneficial to enhancing the stability of the sealing plug 7.
[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A deep vein catheter with a sealing structure, comprising a connection box (1) and a rubber sealing clip (6), characterized in that: On one side of the connection box (1), a deep vein catheter mechanism (2) is fixedly arranged. In the middle position on the other side of the connection box (1), an air delivery pipe (3) is fixedly arranged. At the front end position on the other side of the connection box (1), a first infusion pipe (4) is fixedly arranged. At the rear end position on the other side of the connection box (1), a second infusion pipe (5) is fixedly arranged. On the other side of the first infusion pipe (4), the second infusion pipe (5), and the air delivery pipe (3), an input port (9) is fixedly arranged. On the relatively outer side of each of the plurality of input ports (9), a stabilizing mechanism (8) is fixedly arranged; The deep vein catheter mechanism (2) includes a catheter body (201). In the middle position inside the catheter body (201), a second internal pipe (203) is fixedly arranged. On one side of the second internal pipe (203), an airbag (205) is fixedly arranged. Each of the plurality of stabilizing mechanisms (8) includes a fixed box (801).
2. The deep vein catheter with a sealing structure according to claim 1, wherein: On the inner wall of one side of each of the plurality of fixed boxes (801), a spring rod (805) is fixedly arranged. On the other side of the spring rod (805), a slider (802) is fixedly arranged.
3. The deep vein catheter with a sealing structure according to claim 2, characterized in that: On the other side of the slider (802), a damping rotating shaft (803) is fixedly arranged. On the other side of the damping rotating shaft (803), a clamping block (804) is fixedly arranged.
4. The deep vein catheter with a sealing structure according to claim 1, characterized in that: On the other side of each of the plurality of input ports (9), a sealing plug (7) is snap-fitted. In the middle position on the other side of each of the plurality of sealing plugs (7), a card slot (10) is formed.
5. The deep vein catheter with a sealing structure according to claim 1, wherein: At the front end position inside the catheter body (201), a first internal pipe (x02) is fixedly arranged. At a position inside the catheter body (201) far from the first internal pipe (202), a third internal pipe (204) is fixedly arranged.
6. The deep vein catheter with a sealing structure according to claim 1, characterized in that: On one side of the catheter body (201), a medicine outlet (206) is fixedly arranged.
7. The deep vein catheter with a sealing structure according to claim 1, characterized in that: On the outer surface of the first infusion pipe (4), the second infusion pipe (5), and the air delivery pipe (3), a rubber sealing clip (6) is snap-fitted.