Anti-blocking CVC catheter

Abstract

The utility model discloses an anti-blocking CVC catheter which comprises an adapter, two first horn tubes are arranged at one end of the adapter, first connecting tubes are arranged at the ends, away from the adapter, of the two first horn tubes, and the first connecting tubes are in threaded connection with first threaded tubes. One side of the adapter is fixedly connected with one end of the connecting air pipe, the interior of the adapter is communicated with the interior of the connecting air pipe, the end, away from the adapter, of the connecting air pipe is fixedly connected with the air bag and internally communicated with the air bag, and the outer side of the connecting air pipe is sleeved with a first valve. The first flared tube and the second flared tube are arranged at the two ends of the adapter, so that a connecting channel of the main catheter and the adapter and a connecting channel of the auxiliary catheter and the adapter can be expanded, and then pipeline blockage of the main catheter and the auxiliary catheter is reduced; and proper air can be extruded into the adapter, so that the blocked part can be opened by utilizing air pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of CVC catheters, in particular to an anti-blocking CVC catheter. Background Art

[0002] Vascular access is an important channel for maintaining the patient's life. The CVC catheter has the characteristics of a large lumen, being located in a large vein, and being less irritating. Therefore, it is widely used for rapid blood transfusion, infusion, and monitoring of central venous pressure when rescuing patients. It can also be used for tumor chemotherapy, perioperative infusion, intravenous nutritional support, etc. During infusion, it is usually necessary to cooperate with an infusion needle for infusion.

[0003] Since the CVC main catheter and the secondary catheter are connected via an adapter, especially when the secondary catheter is plugged into the adapter, the channel in the catheter will become narrower, which will lead to blockage of the CVC double secondary catheters and inability to draw blood, thereby delaying the patient's treatment. Therefore, the CVC catheter needs to be improved.

[0004] To this end, we propose an anti-blocking CVC catheter. Utility Model Content

[0005] The main purpose of the utility model is to provide an anti-blocking CVC catheter. By arranging a first trumpet and a second trumpet at both ends of the adapter, the connection channel between the main catheter and the adapter and the connection channel between the auxiliary catheter and the adapter can be expanded, thereby reducing the pipeline blockage of the main and auxiliary catheters. In combination with the air bag on one side of the adapter, appropriate air can be squeezed into the interior of the adapter and the blockage can be cleared by air pressure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A blockage-proof CVC catheter comprises an adapter, one end of the adapter is provided with a first trumpet tube, the first trumpet tube is provided at two locations, the ends of the first trumpet tubes at the two locations away from the adapter are provided with first connecting tubes, and the first connecting tube is threadedly connected with a first threaded tube;

[0008] One side of the adapter is fixedly connected to one end of the connecting trachea, the interior of the adapter is communicated with the interior of the connecting trachea, one end of the connecting trachea away from the adapter is fixedly connected to the airbag and is communicated with the interior, and a first valve is sleeved on the outer side of the connecting trachea.

[0009] Furthermore, a first sealing ring is sleeved on the outer side of the first threaded tube, and one end of the first threaded tube away from the first horn tube is fixedly connected to one end of the auxiliary conduit. The auxiliary conduit is provided at two locations, and the interiors of the auxiliary conduits at the two locations are connected to the interior of the adapter.

[0010] Furthermore, a second trumpet tube is provided at one end of the adapter away from the first trumpet tube, a second connecting tube is provided at one end of the second trumpet tube away from the adapter, and the second connecting tube is threadedly connected to the second threaded tube.

[0011] Furthermore, a second sealing ring is sleeved on the outer side of the second threaded tube, and one end of the second threaded tube away from the second horn tube is fixedly connected to one end of the main tube.

[0012] Furthermore, a second valve is provided on the outer side of the main conduit, and the interior of the main conduit is communicated with the interior of the adapter.

[0013] Compared with the prior art, the utility model has the following beneficial effects: by arranging the first trumpet tube and the second trumpet tube at both ends of the adapter, the connection channel between the main duct and the adapter and the connection channel between the auxiliary duct and the adapter can be expanded, thereby reducing the pipe blockage of the main and auxiliary ducts, and in conjunction with the air bag on one side of the adapter, appropriate air can be squeezed into the interior of the adapter and the blockage can be cleared by air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an anti-blocking CVC catheter of the utility model.

[0015] Figure 2 It is a schematic diagram of the planar structure of an anti-blocking CVC catheter of the utility model.

[0016] Figure 3 It is a side view structural schematic diagram of an anti-blocking CVC catheter of the utility model.

[0017] In the figure: 1. adapter; 2. air bag; 3. first valve; 4. connecting air pipe; 5. first trumpet; 6. first threaded pipe; 7. first connecting pipe; 8. secondary conduit; 9. first sealing ring; 10. second connecting pipe; 11. second threaded pipe; 12. second sealing ring; 13. second valve; 14. main conduit; 15. second trumpet. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 , Figure 2 , Figure 3As shown, an anti-blocking CVC catheter comprises an adapter 1, one end of the adapter 1 is provided with a first trumpet tube 5, the first trumpet tube 5 is provided at two locations, and the first trumpet tube 5 at the two locations is provided with a first connecting tube 7 at one end away from the adapter 1, the first connecting tube 7 is threadedly connected with a first threaded tube 6, and the provision of the first trumpet tube 5 can expand the connection channel between the secondary catheter 8 and the adapter 1;

[0020] One side of the adapter 1 is fixedly connected to one end of the connecting air pipe 4, the interior of the adapter 1 is communicated with the interior of the connecting air pipe 4, the end of the connecting air pipe 4 away from the adapter 1 is fixedly connected to the air bag 2 and the interior is communicated, and the outer side of the connecting air pipe 4 is sleeved with a first valve 3;

[0021] A first sealing ring 9 is sleeved on the outer side of the first threaded tube 6. The first sealing ring 9 can seal the interior of the first connecting tube 7. The end of the first threaded tube 6 away from the first bell tube 5 is fixedly connected to one end of the secondary conduit 8. The secondary conduit 8 is provided at two locations. The interior of the secondary conduit 8 at the two locations is connected to the interior of the adapter 1. The end of the adapter 1 away from the first bell tube 5 is provided with a second bell tube 15. The end of the second bell tube 15 away from the adapter 1 is provided with a second connecting tube 10. The second connecting tube 10 is threadedly connected to the second threaded tube 11.

[0022] A second sealing ring 12 is sleeved on the outer side of the second threaded tube 11, and the second sealing ring 12 can seal the interior of the second connecting tube 10. The end of the second threaded tube 11 away from the second bell tube 15 is fixedly connected to one end of the main conduit 14. A second valve 13 is provided on the outer side of the main conduit 14, and the interior of the main conduit 14 is connected to the interior of the adapter 1. The second bell tube 15 can expand the connecting channel between the main conduit 14 and the adapter 1.

[0023] It should be noted that the utility model is an anti-blocking CVC catheter. First, the secondary catheter 8 is connected and communicated with the adapter 1 through the connection of the first threaded tube 6 and the first connecting tube 7. Then, the main catheter 14 is connected and communicated with the adapter 1 through the connection of the second threaded tube 11 and the second connecting tube 10. When blood needs to be drawn, the blood will flow from the main catheter 14 through the second trumpet tube 15 into the adapter 1, and then flow from the adapter 1 into the first trumpet tube 5 and be drawn out by the secondary catheter 8. If the secondary catheter 8 is blocked, the first valve 13 can be closed first to prevent the flow of blood and the air in the airbag 2 from flowing into the main catheter 14. At the same time, the second valve 3 can be opened and the airbag 2 can be pressed to squeeze the air in the airbag 2 into the adapter 1 through the connecting air pipe 4, so that the blockage can be unblocked by air pressure.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. It should be understood by technicians in this industry that the utility model is not subject to the above

[0025] The above embodiments and descriptions are only for the purpose of explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-blocking CVC catheter, comprising an adapter (1), characterized in that: A first horn tube (5) is provided at one end of the adapter (1), the first horn tube (5) is provided at two locations, and a first connecting tube (7) is provided at one end of the first horn tube (5) away from the adapter (1), the first connecting tube (7) being threadedly connected to the first threaded tube (6); One side of the adapter (1) is fixedly connected to one end of the connecting air pipe (4), the interior of the adapter (1) is connected to the interior of the connecting air pipe (4), one end of the connecting air pipe (4) away from the adapter (1) is fixedly connected to the air bag (2) and the interior is connected, and the outer side of the connecting air pipe (4) is sleeved with a first valve (3).

2. The anti-blocking CVC catheter according to claim 1, characterized in that: A first sealing ring (9) is sleeved on the outer side of the first threaded tube (6); one end of the first threaded tube (6) away from the first horn tube (5) is fixedly connected to one end of the auxiliary conduit (8); the auxiliary conduit (8) is provided with two locations, and the interiors of the auxiliary conduits (8) at the two locations are connected to the interior of the adapter (1).

3. The anti-blocking CVC catheter according to claim 1, characterized in that: A second bell tube (15) is provided at one end of the adapter (1) away from the first bell tube (5); a second connecting tube (10) is provided at one end of the second bell tube (15) away from the adapter (1); and the second connecting tube (10) is threadedly connected to a second threaded tube (11).

4. The anti-blocking CVC catheter according to claim 3, characterized in that: A second sealing ring (12) is sleeved on the outer side of the second threaded tube (11), and one end of the second threaded tube (11) away from the second bell tube (15) is fixedly connected to one end of the main tube (14).

5. The anti-blocking CVC catheter according to claim 4, characterized in that: A second valve (13) is provided on the outside of the main conduit (14), and the interior of the main conduit (14) is in communication with the interior of the adapter (1).

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