CN214550648U

CN214550648U - Multi-cavity to single-cavity universal joint

Info

Publication number: CN214550648U
Application number: CN202022722958.5U
Authority: CN
Inventors: 周立余; 周汉娟
Original assignee: Nanjing Ningxing Medical Technology Co ltd
Current assignee: Nanjing Ningxing Medical Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-11-02
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a multicavity changes single chamber universal joint, wherein, set up first drainage hole in the single chamber connects, and the multicavity connects the center and sets up second drainage hole, and first, second drainage hole passes through the inner tube butt joint intercommunication, constitutes the second cavity between inside and outside pipe. The right end of the multi-cavity joint is uniformly provided with a plurality of horizontal sensor grooves along the circumferential direction of the second drainage hole, and the left ends of the sensor grooves are communicated with each other through annular grooves formed in the multi-cavity joint. The disc is integrally and fixedly arranged on the outer tube, a first cavity is formed in the disc, a center hole for communicating the first cavity with a second cavity is formed in the middle of the disc, and a water blocking film is fixed on the position, located at the center hole, of the outer end face of the disc. The inner edge of the disc is also provided with a communicating hole communicated with the annular groove. The utility model discloses in can satisfying the negative pressure drainage device use, the multicavity changes the user demand in single chamber, realizes real-time supervision pressure and reaches the purpose of in time discovering equipment trouble, prevents that liquid from blockking up equipment and leading to the treatment failure or delay.

Description

Multi-cavity to single-cavity universal joint

Technical Field

The utility model belongs to the technical field of medical equipment, concretely relates to multicavity changes single chamber universal joint.

Background

Negative Pressure Wound Therapy (NPWT) is a treatment technique that can accelerate the healing of a patient's Wound and has been widely used in the treatment of a range of refractory wounds, including acute, chronic, and infectious wounds. When the dressing is applied, the sponge dressing is used for covering or filling the wound with skin and soft tissue defects, the wound is sealed by the biological semipermeable membrane to form a closed space, the drainage tube is communicated with the negative pressure drainage device, and the effusion, necrotic tissues or toxic substances in the wound are absorbed into the effusion tank. The closed therapeutic system can effectively promote the blood microcirculation system of the wound under the action of negative pressure, and is helpful for the growth of granulation tissues so as to accelerate the healing of the wound.

In practice, the problem of exudate clotting in the drainage lumens causing blockages and equipment failure, which are difficult to detect, often occurs. With the progress of technology, negative pressure drainage devices and effusion cells with surface pressure detection have been developed to solve this problem. However, according to the inventor's understanding, the existing drainage joints are all single-cavity joints, and the requirement of butt joint with a multi-cavity interface arranged on the liquid accumulation tank cannot be met.

Disclosure of Invention

To the problem pointed out in the above-mentioned background art, the utility model provides a multicavity changes single chamber universal joint.

The utility model discloses the technical scheme who adopts does:

a multi-cavity to single-cavity universal joint comprises a disc, and a single-cavity joint, an outer pipe and a multi-cavity joint which are sequentially connected, wherein a first drainage hole is arranged in the single-cavity joint, a second drainage hole is arranged at the center of the multi-cavity joint, the first drainage hole and the second drainage hole are communicated in a butt joint mode through an inner pipe, and a second cavity is formed between the inner pipe and the outer pipe; a plurality of horizontal sensor grooves are uniformly formed in the right end of the multi-cavity joint along the circumferential direction of the second drainage hole, and the left ends of the sensor grooves are communicated through annular grooves formed in the multi-cavity joint; the disc is integrally and fixedly arranged on the outer tube, a first cavity is formed in the disc, a central hole for communicating the first cavity with the second cavity is formed in the middle of the disc, and a water blocking film is fixedly arranged on the outer end face of the disc, which is positioned in the central hole; the inner edge of the disc is also provided with a communicating hole communicated with the annular groove; the disc is covered by a matched sealing cover; the multi-cavity joint is in butt joint with the matched multi-cavity tube, the drainage cavity of the multi-cavity tube is in butt joint with the second drainage hole, and the plurality of sensor cavities of the multi-cavity tube are respectively communicated with the sensor grooves in a one-to-one correspondence manner; the other end of the multi-cavity pipe is connected with a multi-cavity pipe interface of the accumulated liquid tank.

Further, the number of sensor slots is four.

Further, a circle of first bulges are integrally arranged on the outer end face of the disc along the central hole, and the water blocking film is welded on the first bulges.

Furthermore, a circle of second protrusions are further arranged on the outer end face of the disc around the first protrusions, the second protrusions are higher than the first protrusions, and the communication holes are formed in the second protrusions.

Further, the outer end face of the single-cavity joint is integrally provided with liquid isolating bulges with gradually increased diameters from left to right.

Further, the universal joint is made of transparent or semitransparent materials.

Furthermore, the universal joint is made of plastic.

The beneficial effects of the utility model reside in that:

the utility model discloses in can satisfying the negative pressure drainage device use, the multicavity changes the user demand in single chamber, realizes real-time supervision pressure and reaches the purpose of in time discovering equipment trouble, prevents that liquid from blockking up equipment and leading to the treatment failure or delay. Meanwhile, the water blocking film is arranged to prevent liquid from entering the sensor cavity and the interior of the device to cause damage to the negative pressure drainage device.

Drawings

Fig. 1 is a schematic structural view of a multi-cavity to single-cavity universal joint of the present invention;

FIG. 2 is a schematic structural view of a water-blocking film;

FIG. 3 is a schematic view of the sealing cap;

FIG. 4 is a schematic structural view of a multi-lumen tube;

FIG. 5 is a side view of FIG. 4;

reference numerals: 1-single-cavity joint, 2-multi-cavity joint, 3-first cavity, 4-communicating hole, 5-second cavity, 6-first drainage hole, 7-second drainage hole, 8-sensor groove, 9-first bulge, 10-second bulge, 11-water-blocking film, 12-sealing cover, 13-multi-cavity tube, 14-drainage cavity and 15-sensor cavity.

Detailed Description

The multi-chamber to single-chamber universal joint of the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in figures 1 to 3, the multi-cavity to single-cavity universal joint comprises a disc, a single-cavity joint 1, an outer tube and a multi-cavity joint 2 which are sequentially connected, wherein a first drainage hole 6 is formed in the single-cavity joint 1, a second drainage hole 7 is formed in the center of the multi-cavity joint 2, the first drainage hole and the second drainage hole are communicated in a butt joint mode through an inner tube, and a second cavity 5 is formed between the inner tube and the outer tube. The right end of the multi-cavity joint 2 is uniformly provided with a plurality of horizontal sensor grooves 8 along the circumferential direction of the second drainage hole 7 (the left ends of the sensor grooves 8 are closed), and the left ends of the sensor grooves 8 are communicated with each other through annular grooves formed in the multi-cavity joint 2. The disc is integrally and fixedly arranged on the outer tube, a first cavity 3 is formed in the disc, a center hole for communicating the first cavity 3 with a second cavity 5 is formed in the middle of the disc, and a water blocking film 11 is fixedly arranged on the position, located at the center hole, of the outer end face of the disc. The inner edge of the disc is also provided with a communicating hole 4 communicated with the annular groove. The disc is closed by a mating seal cap 12. The multi-cavity joint 2 is butted with a matched multi-cavity tube 13, a drainage cavity 14 of the multi-cavity tube 13 is butted with the second drainage hole 7, and a plurality of sensor cavities 15 of the multi-cavity tube 13 are respectively communicated with the sensor grooves 8 in a one-to-one correspondence manner, see fig. 4 and 5. The other end of the multi-cavity tube 13 is connected with the multi-cavity tube interface of the accumulated liquid tank. The water-blocking film 11 is used to prevent liquid from entering the sensor groove 8 through the communication hole 4 and then entering the negative pressure drainage device. The water-resistant film 11 and the sealing cover 12 are integrated with the disc by ultrasonic pressing or hot melting.

In the present embodiment, the number of sensor slots 8 is four.

A circle of first protrusions 9 are integrally arranged on the outer end face of the disc along the central hole, and the water blocking film 11 is welded on the first protrusions 9. In addition, a circle of second bulges 10 are arranged on the outer end face of the disc around the first bulges 9, the second bulges 10 are higher than the first bulges 9, and the communication holes 4 are formed in the second bulges 10.

The outer end face of the single-cavity joint 1 is integrally provided with liquid isolating bulges with gradually increased diameters from left to right.

The universal joint is made of transparent or semitransparent materials (such as plastic).

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A multi-cavity to single-cavity universal joint is characterized by comprising a disc, and a single-cavity joint (1), an outer pipe and a multi-cavity joint (2) which are sequentially connected, wherein a first drainage hole (6) is formed in the single-cavity joint (1), a second drainage hole (7) is formed in the center of the multi-cavity joint (2), the first drainage hole and the second drainage hole are communicated in a butt joint mode through the inner pipe, and a second cavity (5) is formed between the inner pipe and the outer pipe; the right end of the multi-cavity joint (2) is uniformly provided with a plurality of horizontal sensor grooves (8) along the circumferential direction of the second drainage hole (7), and the left ends of the sensor grooves (8) are communicated with each other through an annular groove arranged in the multi-cavity joint (2); the disc is integrally and fixedly arranged on the outer pipe, a first cavity (3) is formed in the disc, a central hole for communicating the first cavity (3) with a second cavity (5) is formed in the middle of the disc, and a water blocking film (11) is fixedly arranged on the outer end face of the disc at the position of the central hole; the inner edge of the disc is also provided with a communicating hole (4) communicated with the annular groove; the disc is covered by a matched sealing cover (12); a multi-cavity pipe (13) which is butted and matched with the multi-cavity joint (2), a drainage cavity (14) of the multi-cavity pipe (13) is butted with the second drainage hole (7), and a plurality of sensor cavities (15) of the multi-cavity pipe (13) are respectively communicated with the sensor grooves (8) in a one-to-one correspondence manner; the other end of the multi-cavity pipe (13) is connected with a multi-cavity pipe interface of the accumulated liquid tank.

2. A universal multi-lumen to single-lumen joint according to claim 1 wherein the number of sensor slots (8) is four.

3. A universal multi-lumen to single-lumen connector according to claim 1, wherein the outer end face of the disc is integrally provided with a ring of first protrusions (9) along the central hole, and the water blocking film (11) is welded on the first protrusions (9).

4. A universal joint according to claim 3, wherein the disc has a ring of second protrusions (10) around the first protrusion (9), the second protrusions (10) are higher than the first protrusion (9), and the communication holes (4) are formed on the second protrusions (10).

5. A universal multi-lumen to single-lumen connector according to claim 1, wherein the outer end surface of the single-lumen connector (1) is integrally provided with liquid isolating protrusions with gradually increasing diameters from left to right.

6. A multi-lumen to single-lumen universal joint according to any of claims 1 to 5 wherein the universal joint is of transparent or translucent material.

7. A multi-lumen to single-lumen universal joint as claimed in claim 6 wherein the universal joint is made of plastic.