Universal conduit joint

Abstract

A universal catheter connector belongs to the technical field of medical instruments. The conical rubber ring is arranged in the main pipe shell, the conical surface in the conical rubber ring is used for being matched with the drainage pipes with different pipe diameters, the ends of the drainage pipes with different pipe diameters can abut against the conical surface of the conical rubber ring, and therefore the drainage pipes with different specifications can be connected conveniently; by arranging the clamping assembly, drainage tubes with different tube diameters can be effectively clamped through metal clamping rings in the clamping assembly, so that sealing between the drainage tubes and the connector is achieved, and internal medium leakage is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a universal catheter connector. Background Technology

[0002] In medical practice, various drainage methods used for different treatment purposes, such as closed thoracic drainage, abdominal drainage, nephrostomy or cystostomy drainage, bile duct drainage, deep abscess puncture and catheter placement drainage, and pancreatic juice drainage, are widely used clinically. The connection and adjustment control between the internal drainage tubes and external drainage tubes / storage bottles (bags) used for these drainages are achieved through drainage tube connectors. Existing drainage tubes are ordinary connecting tubes with one end connected to the drainage tube and the other end connected to the drainage bag. The shortcomings of existing drainage tube connectors are: because the diameter of the end connected to the drainage tube is fixed, it can only connect to one type of drainage tube. However, clinically used drainage tubes vary in diameter, so a single connector cannot meet the needs of connecting multiple drainage tubes, thus causing considerable trouble for medical personnel. Summary of the Invention

[0003] The present invention aims to solve the technical problems existing in the prior art and provide a universal conduit connector.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a universal conduit connector, including a main pipe shell, a branch pipe provided on the main pipe shell, the branch pipe communicating with the main pipe shell, a first mounting cavity and a second mounting cavity symmetrically provided at both the upper and lower ends of the main pipe shell, the first mounting cavity being located outside the second mounting cavity, a conical rubber ring being provided in the second mounting cavity, the conical rubber ring including an inverted conical cone surface, the first mounting cavity being inverted conical, and a clamping assembly being provided in the first mounting cavity, the clamping assembly including a clamping component that is connected to the first mounting cavity. A pipe fitting mounting base with a fixed cavity connection is provided. The inner end of the pipe fitting mounting base is tapered and mates with the first mounting cavity. The bottom of the inner ring surface of the pipe fitting mounting base is provided with a retaining ring and a limiting step. The retaining ring is located on the inner side of the limiting step. A metal retaining ring is installed on the limiting step. A clamping ring is provided on the lower side of the metal retaining ring. The clamping ring is embedded in the retaining ring and the outer end of the clamping ring presses against the metal retaining ring. A pressure sleeve is provided in the pipe fitting mounting base outside the metal retaining ring. The pressure sleeve is slidably connected to the pipe fitting mounting base and the inner end of the pressure sleeve abuts against the metal retaining ring.

[0005] Preferably, the metal retaining ring includes an upper abutment ring and a conical retaining plate assembly. The upper abutment ring abuts against the limiting step, and the conical retaining plate assembly includes multiple conical retaining plates arranged in a ring array around the metal retaining ring. The conical retaining plates are positioned towards the conical rubber ring side.

[0006] Preferably, the inner end of the pressure sleeve is located at a tapered chamfer, and the inner end of the pressure sleeve abuts against the inner tapered surface of the tapered clamping plate through the tapered chamfer.

[0007] Preferably, the taper of the conical clamping plate is the same as the taper of the conical rubber ring.

[0008] Preferably, the branch pipe is connected to the middle position of the main pipe shell, and the included angle between the two is 45°.

[0009] Preferably, the outer diameter of the branch pipe is larger than the end connected to the main pipe shell, and the two are smoothly transitioned.

[0010] The beneficial effects of this utility model are as follows: By setting a conical rubber ring inside the main pipe shell, the conical surface of the conical rubber ring can be used to adapt to drainage pipes of different diameters. The ends of drainage pipes of different diameters can all abut against the conical surface of the conical rubber ring, thus facilitating the connection of drainage pipes of different specifications; by setting a clamping assembly, the metal retaining ring in the clamping assembly can effectively clamp drainage pipes of different diameters, thereby achieving a seal between the drainage pipe and the connector and preventing leakage of internal media. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 yes Figure 1 Enlarged diagram of section A in the middle;

[0013] Figure 3 This is a schematic diagram of the structure of a metal retaining ring according to this utility model.

[0014] In the diagram: 1. Main pipe housing; 2. Branch pipe; 3. First mounting cavity; 4. Second mounting cavity; 5. Conical rubber ring; 6. Conical surface; 7. Pipe port mounting seat; 8. Snap ring; 9. Limiting step; 10. Metal snap ring; 11. Compression ring; 12. Compression sleeve; 13. Upper contact ring; 14. Conical clamping plate; 15. Conical chamfer. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] Example: A universal catheter connector, such as Figures 1-3As shown, the device includes a main casing 1, on which a branch pipe 2 is provided, communicating with the main casing 1. The main casing 1 has a first mounting cavity 3 and a second mounting cavity 4 symmetrically arranged at both its upper and lower ends. The first mounting cavity 3 is located outside the second mounting cavity 4. A conical rubber ring 5 is provided inside the second mounting cavity 4, and the conical rubber ring 5 includes an inverted conical surface 6. The first mounting cavity 3 is inverted conical in shape and contains a clamping assembly. The clamping assembly includes a pipe port mounting seat 7 fixedly connected to the first mounting cavity 3, the inner end of which is... The conical shape that mates with the first mounting cavity 3 has a retaining ring 8 and a limiting step 9 at the bottom of the inner ring surface of the pipe mounting seat 7. The retaining ring 8 is located inside the limiting step 9. A metal retaining ring 10 is installed on the limiting step 9. A clamping ring 11 is provided on the lower side of the metal retaining ring 10. The clamping ring 11 is embedded in the retaining ring 8, and the outer end of the clamping ring 11 presses against the metal retaining ring 10. A pressure sleeve 12 is provided inside the pipe mounting seat 7 outside the metal retaining ring 10. The pressure sleeve 12 is slidably connected to the pipe mounting seat 7, and the inner end of the pressure sleeve 12 abuts against the metal retaining ring 10.

[0017] The metal retaining ring 10 includes an upper contact ring 13 and a conical retaining plate assembly. The upper contact ring 13 abuts against the limiting step 9. The conical retaining plate assembly includes multiple conical retaining plates 14 arranged in a circular array around the metal retaining ring 10. The conical retaining plates 14 are positioned towards the conical rubber ring 5. The inner end of the pressure sleeve 12 is located at a conical chamfer. The inner end of the pressure sleeve 12 abuts against the inner conical surface 6 of the conical retaining plate 14 through the conical chamfer 15. The taper of the conical retaining plate 14 is consistent with the taper of the conical rubber ring 5.

[0018] The principle of this utility model: When using the catheter connector, first select the required drainage tube and insert the end into the locking assembly at one end of the main tube housing 1. The drainage tube passes through the pressure sleeve 12 of the locking assembly, passes through the metal retaining ring 10, and finally abuts against the conical surface 6 of the conical rubber ring 5. During the inward movement, the opening of the drainage tube will open the multiple conical retaining plates 14 in the metal retaining ring 10. Since the drainage tube is made of soft rubber material, the ends of the conical retaining plates 14 will be embedded in the tube wall of the drainage tube, thereby preventing the drainage tube from coming off in the opposite direction.

[0019] When it is necessary to remove the drainage tube, press the sleeve 12 inward. The inner end of the sleeve 12 squeezes the metal ring, pushing the conical clamp 14 outward in the circumferential direction to disengage from the drainage tube, so that the drainage tube can be pulled out of the connector. The sleeve 12 is reset by the elastic force of the conical clamp 14.

[0020] The conical rubber ring 5 is designed to accommodate drainage pipes of different diameters. When inserting the connector, it can fit the pipe opening with the conical surface 6 to achieve a seal between the two. When the drainage pipe diameter is large, the pressure sleeve 12 can be pressed to facilitate insertion. The included angle between the branch pipe 2 and the main pipe shell is 40° to 50°, with 45° being the optimal selection.

[0021] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A universal conduit connector, comprising a main pipe housing (1), characterized in that: A branch pipe (2) is provided on the main casing (1), and the branch pipe (2) is connected to the main casing (1). The upper and lower ends of the main casing (1) are symmetrically provided with a first mounting cavity (3) and a second mounting cavity (4). The first mounting cavity (3) is located outside the second mounting cavity (4). A conical rubber ring (5) is provided in the second mounting cavity (4). The conical rubber ring (5) includes an inverted conical cone surface (6). The first mounting cavity (3) is inverted conical. A clamping assembly is provided in the first mounting cavity (3). The clamping assembly includes a pipe port mounting seat (7) fixedly connected to the first mounting cavity (3). The inner end of the pipe port mounting seat (7) is connected to the first mounting cavity (3). The conical shape of the fitting is provided with a retaining ring (8) and a limiting step (9) at the bottom of the inner ring surface of the pipe mounting seat (7). The retaining ring (8) is located on the inner side of the limiting step (9). A metal retaining ring (10) is installed on the limiting step (9). A clamping ring (11) is provided on the lower side of the metal retaining ring (10). The clamping ring (11) is embedded in the retaining ring (8), and the outer end of the clamping ring (11) presses against the metal retaining ring (10). A pressure sleeve (12) is provided in the pipe mounting seat (7) outside the metal retaining ring (10). The pressure sleeve (12) is slidably connected to the pipe mounting seat (7), and the inner end of the pressure sleeve (12) abuts against the metal retaining ring (10).

2. The universal catheter connector according to claim 1, characterized in that: The metal retaining ring (10) includes an upper contact ring (13) and a conical retaining plate assembly. The upper contact ring (13) abuts against the limiting step (9). The conical retaining plate assembly includes multiple conical retaining plates (14) arranged in a ring array around the metal retaining ring (10). The conical retaining plates (14) are arranged on the side facing the conical rubber ring (5).

3. The universal catheter connector according to claim 1, characterized in that: The inner end of the pressure sleeve (12) is located at a tapered chamfer (15), and the inner end of the pressure sleeve (12) abuts against the inner tapered surface (6) of the tapered clamping plate (14) through the tapered chamfer (15).

4. The universal catheter connector according to claim 2, characterized in that: The taper of the conical plate (14) is consistent with the taper of the conical rubber ring (5).

5. The universal catheter connector according to claim 1, characterized in that: The branch pipe (2) is connected to the middle position of the main pipe shell (1), and the included angle between the two is 45°.

6. The universal catheter connector according to claim 1, characterized in that: The outer diameter of the branch pipe (2) is larger than the end connected to the main pipe shell (1), and the two are smoothly transitioned.

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