A tubing connection device for organ perfusion

Abstract

This utility model discloses a pipe connection device for organ perfusion, belonging to the field of perfusion pipe connection technology. It includes a connecting pipe with a connecting groove inside. Both ends of the connecting groove are connected to connecting ports, and the connecting groove and connecting ports penetrate the connecting pipe. Multiple limiting strips are fixedly installed at equal angles at the center of the inner wall of the connecting groove. This pipe connection device for organ perfusion, by setting up a connecting pipe, a clamping screw, a clamping sleeve, and a fixing ring, deforms the rubber fixing ring. Under the rebound action of the rubber fixing ring, one end of the perfusion pipe is clamped and fixed inside the connecting port. Simultaneously, the fixing ring corresponds to the position of the fixing groove. Tightening the clamping sleeve compresses the clamping screw, causing the clamping screw to clamp onto the surface of the perfusion pipe, thus clamping and fixing one end of the perfusion pipe to both ends of the connecting pipe. This ensures that the two perfusion pipes will not easily loosen or fall off when fixed at both ends of the connecting pipe.

Description

Technical Field

[0001] This utility model belongs to the field of irrigation pipeline connection technology, specifically a pipeline connection device for organ irrigation. Background Technology

[0002] Organ perfusion technology, which simulates blood circulation in the body to provide nutrients and oxygen to organs to maintain their function, has wide applications in organ transplantation, drug testing, cancer research, and organoid culture. Organ perfusion requires a tubing connection device to connect the perfusion tubing. Existing tubing connection devices for organ perfusion, because the perfusion tubing is generally made of plastic or rubber, are easily dislodged from the connection device when the tubing is pulled. Therefore, improvements are needed. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a pipe connection device for organ perfusion, which solves the problem that when existing pipe connection devices for organ perfusion are connected, the perfusion pipe is generally made of plastic or rubber. When the pipe is fitted onto the interface of the pipe connection device, it is locked at the interface of the pipe connection device by the contraction of the plastic or rubber perfusion pipe. When the pipe is pulled, the perfusion pipe is easy to fall off from the interface of the pipe connection device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe connection device for organ perfusion, comprising a connecting pipe, a connecting groove inside the connecting pipe, a connecting port at each end of the connecting groove, and the connecting groove and the connecting port penetrating the connecting pipe; multiple limiting strips fixedly installed at equal angles at the center of the inner wall of the connecting groove; a clamping screw head fixedly installed at each end of the connecting pipe, a fixing groove provided on the inner wall of the clamping screw head, a clamping sleeve threaded through the outer surface of the clamping screw head; a filter cylinder slidably installed at one end inside the connecting groove, a filter screen fixedly installed at one end inside the filter cylinder; and perfusion pipes at each end of the connecting pipe, one end of which passes through the clamping screw head and is inserted into the connecting port.

[0005] As a further embodiment of this utility model: a rubber retaining ring is fixedly installed on the inner wall of the connecting port, and the surface of one end of the irrigation tube located inside the connecting port is tightly attached to the rubber retaining ring.

[0006] As a further embodiment of this utility model: the surface of the filter cylinder is provided with multiple limiting slots at equal angles, and the positions of the limiting slots correspond to those of the limiting strips.

[0007] As a further embodiment of this utility model: an end ring is fixedly installed on the surface of the filter cylinder away from the filter screen, and the end ring overlaps the inside of the communication port on the side near the communication groove.

[0008] As a further embodiment of this utility model: a second rubber retaining ring is fixedly installed on the outer surface of the filter cylinder away from the filter screen, and the second rubber retaining ring is engaged with the inner wall of the connecting pipe.

[0009] As a further embodiment of this utility model: a fixing ring is fixedly installed on the outer surface of the irrigation tube near the connecting tube, and the fixing ring and the fixing groove are engaged with each other.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This tube connection device for organ perfusion, by setting up a connecting tube, a clamping screw, a clamping sleeve, and a fixing ring, inserts the end of the perfusion tube with the fixing ring into the clamping screw, so that the perfusion tube is close to the inside of the connecting port, compresses the rubber retaining ring, deforms it, and under the rebound action of the rubber retaining ring, clamps and fixes one end of the perfusion tube inside the connecting port. At the same time, the fixing ring and the fixing groove are aligned. Tightening the clamping sleeve compresses the clamping screw, so that the clamping screw is clamped on the surface of the perfusion tube, clamping and fixing one end of the perfusion tube to both ends of the connecting tube, thereby ensuring that the two perfusion tubes will not easily loosen or fall off when fixed at both ends of the connecting tube.

[0012] 2. This pipe connection device for organ perfusion, by setting a limiting strip, a filter cylinder, a limiting groove, and a second rubber retainer, allows the filter cylinder to be inserted into the connecting groove through the connecting port. The limiting groove on the surface of the filter cylinder is locked onto the surface of the corresponding limiting strip, pushing the filter cylinder into the connecting groove. This causes the second rubber retainer to adhere tightly to the inner wall of the connecting groove, compressing and deforming the second rubber retainer, thereby clamping and fixing the filter cylinder inside the connecting groove. This facilitates the installation and removal of the filter cylinder, allowing the liquid perfused through the connecting pipe to be filtered by the filter screen. Attached Figure Description

[0013] Figure 1 This is a schematic cross-sectional view of the combined structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the connecting pipe of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the filter cylinder and filter screen of this utility model;

[0016] Figure 4 This is a schematic diagram of the irrigation tube of this utility model;

[0017] In the diagram: 1. Connecting pipe; 2. Connecting groove; 3. Limiting strip; 4. Connecting port; 5. Rubber retaining ring one; 6. Tightening screw head; 7. Fixing groove; 8. Tightening sleeve; 9. Filter cylinder; 10. Limiting groove; 11. Filter screen; 12. Rubber retaining ring two; 13. End ring; 14. Irrigation pipe; 15. Fixing retaining ring. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a pipe connection device for organ perfusion, including a connecting pipe 1, a connecting groove 2 inside the connecting pipe 1, and connecting ports 4 at both ends of the connecting groove 2, with the connecting groove 2 and the connecting ports 4 penetrating the connecting pipe 1. Multiple limiting strips 3 are fixedly installed at equal angles at the center of the inner wall of the connecting groove 2, and multiple limiting slots 10 are provided at equal angles on the surface of the filter cylinder 9, with the limiting slots 10 corresponding to the positions of the limiting strips 3. By providing the limiting strips 3 and the limiting slots 10, when the filter cylinder 9 is inserted into the connecting groove 2, the limiting slots 10 are locked onto the corresponding limiting strips 3, ensuring that the filter cylinder 9 is locked inside the connecting groove 2 and will not rotate arbitrarily.

[0020] A rubber retaining ring 5 is fixedly installed on the inner wall of the connecting port 4, and the end surface of the irrigation tube 14 located inside the connecting port 4 is tightly attached to the rubber retaining ring 5. Because of the rubber retaining ring 5, after the irrigation tube 14 is inserted into the connecting port 4 and tightly attached to the rubber retaining ring 5, the irrigation tube 14 squeezes the rubber retaining ring 5 to deform, and under the rebound action of the rubber retaining ring 5, the irrigation tube 14 is clamped and fixed inside the connecting port 4.

[0021] A clamping screw head 6 is fixedly installed at both ends of the connecting tube 1. The inner wall of the clamping screw head 6 is provided with a fixing groove 7. A clamping screw sleeve 8 is threaded through the outer surface of the clamping screw head 6. A fixing ring 15 is fixedly installed on the outer surface of the end of the irrigation tube 14 near the connecting tube 1. The fixing ring 15 and the fixing groove 7 are engaged with each other. With the fixing groove 7 and the fixing ring 15, after the fixing ring 15 and the fixing groove 7 are aligned, tightening the clamping screw sleeve 8 squeezes the clamping screw head 6 to shrink, so that the fixing groove 7 is locked on the surface of the fixing ring 15, thereby clamping and fixing the irrigation tube 14 inside the clamping screw head 6.

[0022] A filter cylinder 9 is slidably installed at one end of the connecting groove 2, and a filter screen 11 is fixedly installed at one end of the filter cylinder 9. Irrigation tubes 14 are respectively provided at both ends of the connecting pipe 1. One end of the irrigation tube 14 passes through the clamping screw head 6 and is inserted into the connecting port 4. Because of the filter cylinder 9 and the filter screen 11, the two irrigation tubes 14 are fixed at both ends of the connecting pipe 1. The liquid used for organ irrigation flows into the connecting pipe 1 and is filtered by the filter cylinder 9 and the filter screen 11 to reduce impurities in the irrigation liquid.

[0023] An end ring 13 is fixedly installed on the surface of the filter cylinder 9 away from the filter screen 11, and the end ring 13 overlaps the inside of the connecting port 4 on the side close to the connecting groove 2. By providing the end ring 13, after the filter cylinder 9 is inserted into the connecting groove 2, the end ring 13 overlaps the inner wall of the connecting port 4, thus clamping and limiting the filter cylinder 9.

[0024] A rubber retaining ring 2 12 is fixedly installed on the outer surface of the filter cylinder 9 away from the filter screen 11, and the rubber retaining ring 2 12 is engaged with the inner wall of the connecting pipe 1. Because of the rubber retaining ring 2 12, after the filter cylinder 9 is inserted into the connecting groove 2, the rubber retaining ring 2 12 is squeezed and deformed on the inner wall of the connecting groove 2, thereby clamping and fixing the filter cylinder 9 inside the connecting groove 2.

[0025] The working principle of this utility model is as follows:

[0026] Insert a new filter cartridge 9 into the connecting groove 2 from one side of the connecting pipe 1, aligning it with the limiting strip 3, until the rubber retaining ring 12 on the surface of the filter cartridge 9 is pressed tightly against the inner wall of the connecting groove 2, thus securing the filter cartridge 9 inside the connecting groove 2. Then, insert two irrigation tubes 14 into the connecting port 4 through the clamping screw head 6, causing the irrigation tubes 14 to deform by squeezing the rubber retaining ring 5, thus securing the irrigation tubes 14 inside the connecting port 4. At the same time, the fixing retaining ring 15 on the surface of the irrigation tube 14 corresponds to the position of the fixing retaining groove 7. Tighten the clamping screw sleeve 8 to retract the clamping screw head 6, causing the fixing retaining groove 7 to be clamped onto the surface of the fixing retaining ring 15, thereby securing the irrigation tubes 14. Combine and connect the connecting pipe 1 and the two irrigation tubes 14. After the connection is completed, input organ irrigation fluid into the irrigation tube 14 located at the end of the connecting pipe 1 where the filter cartridge 9 is installed. After the fluid passes through the filter cartridge 9 and the filter screen 11, it is discharged from the other irrigation tube 14.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A tubing connection device for organ perfusion, comprising a connection tube (1), characterized in that: The connecting pipe (1) has a connecting groove (2) inside. The two ends of the connecting groove (2) are respectively connected to the connecting port (4). The connecting groove (2) and the connecting port (4) pass through the connecting pipe (1). Multiple limiting strips (3) are fixedly installed at the center of the inner wall of the connecting groove (2) at equal angles. The two ends of the connecting pipe (1) are respectively fixedly installed with a clamping screw head (6). The inner wall of the clamping screw head (6) is provided with a fixing groove (7). The outer surface of the clamping screw head (6) is threadedly connected with a clamping screw sleeve (8). A filter cylinder (9) is slidably installed at one end inside the connecting groove (2). A filter screen (11) is fixedly installed at one end inside the filter cylinder (9). The two ends of the connecting pipe (1) are respectively provided with an irrigation pipe (14). One end of the irrigation pipe (14) passes through the clamping screw head (6) and is inserted into the connecting port (4).

2. The tubing connection device for organ perfusion according to claim 1, characterized in that: A rubber retaining ring (5) is fixedly installed on the inner wall of the connecting port (4), and the surface of one end of the irrigation tube (14) located inside the connecting port (4) is in close contact with the rubber retaining ring (5).

3. The tubing connection device for organ perfusion according to claim 1, characterized in that: The filter cylinder (9) has multiple limiting slots (10) at equal angles on its surface, and the limiting slots (10) correspond to the positions of the limiting strips (3).

4. A conduit connection device for organ perfusion according to claim 1, characterized in that: An end ring (13) is fixedly installed on the surface of the filter cylinder (9) away from the filter screen (11), and the end ring (13) overlaps the inside of the communication port (4) on the side close to the communication groove (2).

5. A conduit connection device for organ perfusion according to claim 1, characterized in that: A rubber retaining ring 2 (12) is fixedly installed on the outer surface of the filter cylinder (9) away from the filter screen (11), and the rubber retaining ring 2 (12) is engaged with the inner wall of the connecting pipe (1).

6. A conduit connection device for organ perfusion according to claim 1, characterized in that: A fixing ring (15) is fixedly installed on the outer surface of the irrigation tube (14) near the connecting tube (1), and the fixing ring (15) is engaged with the fixing groove (7).

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