CRRT waste liquid collecting device

Abstract

The utility model discloses a CRRT waste liquid collecting device, and belongs to the technical field of medical instruments. The packaging bag comprises a bag body, a plurality of pipelines, an external thread connector, an internal thread connector and an elastic sealing assembly. The internal thread connector is provided with an inner cylinder and an outer cylinder, the outer cylinder is provided with an internal thread groove and an assembling groove, and the elastic sealing assembly is installed in the assembling groove. The elastic sealing assembly is composed of a spring and a sealing piece, and the sealing piece comprises a sealing plate and a limiting rod. The device has multiple advantages, the problem that discharge is interrupted when a traditional waste liquid collecting bag is replaced is solved, the external thread connector is connected with a dialysis pipeline during use, the internal thread connector is initially closed, and when the bag body is full, the bag body can be connected with another device to achieve continuous discharge. And a plurality of collecting devices can be connected to form a large-capacity collecting device, so that the working pressure of medical personnel is reduced. The external thread connector and the internal thread connector of the same device can be connected with each other, the packaging cost is reduced, the CRRT treatment efficiency and safety are improved, and better guarantee is provided for treatment of critical patients.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a CRRT waste liquid collection device. Background Art

[0002] With the development of society, people's living standards are constantly improving, and more and more people are paying attention to their health. Continuous renal replacement therapy (CRRT), also known as continuous blood purification (CBP), is a new blood purification method. In clinical practice, some critically ill hemodialysis patients require CRRT treatment, which requires a CRRT machine and matching tubing. Typically, the tubing is installed on the CRRT machine, directing the patient's blood into an arterial line, through a filter, and then through a venous line before returning the blood to the patient. The waste generated during this process is collected into a waste bag. However, after a traditional waste collection bag is filled with waste, it must be removed from the waste connection of the dialysis line and replaced with a new one. During this replacement process, waste discharge is interrupted to prevent waste from being discharged from the waste connection. This approach compromises the continuity of CRRT treatment and adversely affects the patient's treatment outcomes. Therefore, to address these issues, we propose a CRRT waste collection device. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the utility model discloses a CRRT waste liquid collection device.

[0004] In order to achieve the above purpose, a technical solution adopted by the utility model is:

[0005] A CRRT waste liquid collection device includes a bag body, a first pipe, a second pipe, an externally threaded connector, a third pipe, an internally threaded connector, and an elastic sealing assembly, wherein the first pipe is connected to the bag body, the second pipe and the third pipe are both connected to the first pipe, the externally threaded connector and the internally threaded connector are connected to the second pipe and the third pipe, respectively, the externally threaded connector can be installed and connected to the waste liquid connector of the dialysis circuit, the externally threaded connector can be installed and connected to the internally threaded connector, and the elastic sealing assembly is disposed within the internally threaded connector;

[0006] When the external thread connector is not installed and connected with the internal thread connector, the elastic sealing component will seal the internal thread connector;

[0007] When the external thread connector is installed and connected with the internal thread connector, the elastic sealing component will release the sealing of the internal thread connector.

[0008] Furthermore, the internal threaded connector includes an inner tube and an outer tube, the front and rear ends of the outer tube respectively have an internal thread groove and an assembly groove that are connected to each other, the diameter of the assembly groove is larger than the diameter of the internal thread groove, the inner tube is fixed to the inner rear part of the assembly groove, the inner tube is connected to the third pipe, the outer tube can be threadedly connected to the external threaded connector through the internal thread groove, and the elastic sealing component is assembled in the assembly groove.

[0009] Furthermore, the elastic sealing assembly includes a spring and a sealing member, and the sealing member includes a sealing plate and a limiting rod. There are multiple limiting rods, and multiple limiting rods are fixed to the front end of the sealing plate. Multiple limiting rods are longitudinally slidably assembled in the internal thread groove to keep the sealing plate concentric with the internal thread groove. The diameter of the sealing plate is between the diameter of the internal thread groove and the diameter of the assembly groove, and the spring is assembled between the sealing plate and the inner cylinder.

[0010] Furthermore, there are three limiting rods, and the three limiting rods are distributed in a circular array around the center of the sealing plate.

[0011] Furthermore, the limiting rod and the sealing plate are an integrally formed structure.

[0012] Furthermore, a flexible sealing gasket is provided at the front end of the sealing plate.

[0013] Furthermore, the outer wall of the inner cylinder is bonded to the inner wall of the assembly groove.

[0014] Furthermore, the second pipeline and the third pipeline are connected to the first pipeline through a three-way joint.

[0015] Furthermore, the bag body is provided with a hanging portion at one end of the first pipe.

[0016] Furthermore, there are two hanging parts, and the two hanging parts are symmetrically distributed on the left and right sides of the first pipe.

[0017] This CRRT waste liquid collection device has significant beneficial effects. It solves the problem that traditional waste liquid collection bags need to interrupt waste liquid discharge when replaced, which affects the continuity of treatment. When in use, the external threaded connector is connected to the dialysis tubing, the internal threaded connector is initially closed, and the waste liquid can be discharged into the bag for collection. When the bag is about to be full, the external threaded connector of another device can be connected to the internal threaded connector of the previous device to achieve continuous discharge of waste liquid without interrupting treatment. Multiple devices can also be connected to form a large-capacity collection device to meet long-term collection needs and reduce the workload of medical staff. In addition, the external threaded connector and the internal threaded connector of the same device can be connected to each other without the need for additional caps, reducing packaging costs. In short, this device effectively improves the efficiency and safety of CRRT treatment and provides better protection for the treatment of critically ill hemodialysis patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure at point A in the middle;

[0021] Figure 3 This is a schematic cross-sectional view of an internal thread connection in one embodiment of the present invention;

[0022] Figure 4 This is a structural diagram of the outer cylinder in one embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the structure of the sealing member and the flexible sealing gasket in one embodiment of the present invention.

[0024] The meanings of the reference numerals in the accompanying drawings are:

[0025] Bag body 1, hanging part 11, first pipe 2, second pipe 3, external thread connector 4, third pipe 5, internal thread connector 6, inner tube 61, outer tube 62, internal thread groove 621, assembly groove 622, elastic closing component 7, spring 71, closing part 72, sealing plate 721, limiting rod 722, flexible sealing gasket 723, and three-way joint 8. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Reference Figure 1-Figure 5 As shown, the CRRT waste liquid collection device of this embodiment includes a bag body 1, a first pipe 2, a second pipe 3, an external threaded connector 4, a third pipe 5, an internal threaded connector 6 and an elastic sealing component 7. The first pipe 2 is connected to the bag body 1, and the second pipe 3 and the third pipe 5 are connected to the first pipe 2 through a tee connector 8. The external threaded connector 4 and the internal threaded connector 6 are connected to the second pipe 3 and the third pipe 5 respectively.

[0028] The external threaded connector 4 can be installed and connected to the waste liquid connector of the dialysis pipeline. When the two are connected, the waste liquid generated by the dialysis pipeline can enter the second pipeline 3 through the external threaded connector 4. The waste liquid entering the second pipeline 3 can flow to the first pipeline 2 and the third pipeline 5. The waste liquid flowing to the first pipeline 2 will be collected in the bag body 1, and the waste liquid flowing to the third pipeline 5 will flow to the internal threaded connector 6.

[0029] The external thread connector 4 can be installed and connected with the internal thread connector 6. When the two are connected, the waste liquid located in the bag body 1, the first pipe 2, the second pipe 3 and the third pipe 5 is in a closed state, in which the waste liquid can be prevented from being discharged.

[0030] Furthermore, the internal thread connector 6 includes an inner tube 61 and an outer tube 62. The front and rear ends of the outer tube 62 respectively have an internal thread groove 621 and an assembly groove 622 that are connected to each other. The diameter of the assembly groove 622 is larger than the diameter of the internal thread groove 621. The inner tube 61 is fixed to the inner rear part of the assembly groove 622. Specifically, the outer wall of the inner tube 61 is bonded to the inner wall of the assembly groove 622. The inner tube 61 is connected to the third pipe 5. The outer tube 62 can be threadedly connected to the external thread connector 4 through the internal thread groove 621. The elastic sealing component 7 is assembled in the assembly groove 622.

[0031] In this embodiment, the elastic sealing component 7 includes a spring 71 and a sealing member 72. The sealing member 72 includes a sealing plate 721 and a limiting rod 722. There are three limiting rods 722. The three limiting rods 722 are fixed to the front end of the sealing plate 721 and are an integrally formed structure with the sealing plate 721. The three limiting rods 722 are distributed in a circular array around the center of the sealing plate 721. The three limiting rods 722 are longitudinally slidably assembled in the internal thread groove 621 to keep the sealing plate 721 concentric with the internal thread groove 621. The diameter of the sealing plate 721 is between the diameter of the internal thread groove 621 and the diameter of the assembly groove 622. The spring 71 is assembled between the sealing plate 721 and the inner cylinder 61.

[0032] In the natural state, the spring 71 will cooperate with the inner tube 61 to push the sealing plate 721 forward under the action of its own elastic force. When the external threaded connector 4 is not installed and connected with the internal threaded connector 6, the front end of the sealing plate 721 will abut against the bottom wall of the assembly groove 622, thereby closing the internal threaded connector 6 and preventing the end of the third pipe 5 from discharging liquid.

[0033] Furthermore, a flexible sealing gasket 723 is provided at the front end of the sealing plate 721. The flexible sealing gasket 723 can enhance the sealing strength after the sealing plate 721 abuts against the bottom wall of the assembly groove 622 to prevent liquid leakage.

[0034] When the external threaded connector 4 and the internal threaded connector 6 are installed and connected, the external threaded connector 4 entering the internal threaded groove 621 will overcome the elastic force of the spring 71 and push the limit rod 722 backward, so that the sealing plate 721 and the bottom wall of the assembly groove 622 are released from contact, that is, a gap is generated. In this way, the elastic sealing component 7 releases the seal on the internal threaded connector 6, and the internal threaded connector 6 is in a conductive state.

[0035] In this embodiment, the bag body 1 is provided with a hanging portion 11 at one end of the first pipe 2, and there are two hanging portions 11, which are symmetrically distributed on the left and right sides of the first pipe 2. This arrangement allows the bag body 1 to be hung and installed.

[0036] During use, the external threaded connector 4 is installed and connected to the waste liquid connector of the dialysis tubing. When the internal threaded connector 6 is not installed with the external threaded connector 4, it is in a closed state. In this state, the waste liquid generated by the dialysis tubing can be discharged into the bag body 1 through the second pipe 3 and the first pipe 2, so that the waste liquid can be collected.

[0037] When the bag body 1 is close to being full, the external threaded connector 4 of another CRRT waste liquid collection device can be connected to the internal threaded connector 6 of the previous CRRT waste liquid collection device. After the connection, the internal threaded connector 6 of the previous CRRT waste liquid collection device is in a conductive state, so that the waste liquid discharged into the previous CRRT waste liquid collection device by the subsequent dialysis pipeline can be discharged into the next CRRT waste liquid collection device through its third pipe 5 for collection. Since this process does not require the removal of the previous CRRT waste liquid collection device, and the conduction of the internal threaded connector 6 is achieved when the external threaded connector 4 of the next CRRT waste liquid collection device is installed, there will be no waste liquid leakage in this process, so there is no need to interrupt the waste liquid discharge, thereby avoiding affecting the continuity of CRRT treatment.

[0038] It is worth mentioning that multiple devices can be connected end to end during the dialysis pipeline layout, thus forming a large-capacity collection device to meet the waste liquid collection needs for a long time, avoid frequent installation, reduce the work pressure of medical staff, and thus improve work efficiency.

[0039] It should be emphasized that the external threaded connector 4 and the internal threaded connector 6 of the same CRRT waste liquid collection device can be installed and connected to each other, so that the two can remain connected before leaving the factory, and there is no need to provide additional sealing caps for the two to reduce packaging costs.

[0040] This CRRT waste liquid collection device has significant beneficial effects. It solves the problem that traditional waste liquid collection bags need to interrupt waste liquid discharge when replaced, which affects the continuity of treatment. When in use, the external threaded connector is connected to the dialysis tubing, the internal threaded connector is initially closed, and the waste liquid can be discharged into the bag for collection. When the bag is about to be full, the external threaded connector of another device can be connected to the internal threaded connector of the previous device to achieve continuous discharge of waste liquid without interrupting treatment. Multiple devices can also be connected to form a large-capacity collection device to meet long-term collection needs and reduce the workload of medical staff. In addition, the external threaded connector and the internal threaded connector of the same device can be connected to each other without the need for additional caps, reducing packaging costs. In short, this device effectively improves the efficiency and safety of CRRT treatment and provides better protection for the treatment of critically ill hemodialysis patients.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A CRRT waste liquid collection device, characterized by: The dialysis device comprises a bag body, a first pipe, a second pipe, an externally threaded connector, a third pipe, an internally threaded connector, and an elastic sealing component, wherein the first pipe is connected to the bag body, the second pipe and the third pipe are both connected to the first pipe, the externally threaded connector and the internally threaded connector are connected to the second pipe and the third pipe respectively, the externally threaded connector can be installed and connected to the waste liquid connector of the dialysis circuit, the externally threaded connector can be installed and connected to the internally threaded connector, and the elastic sealing component is arranged in the internally threaded connector; When the external thread connector is not installed and connected with the internal thread connector, the elastic sealing component will seal the internal thread connector; When the external thread connector is installed and connected with the internal thread connector, the elastic sealing component will release the sealing of the internal thread connector.

2. The CRRT waste liquid collection device according to claim 1, characterized in that: The internal thread connector includes an inner tube and an outer tube, and the front and rear ends of the outer tube respectively have an internal thread groove and an assembly groove that are connected to each other. The diameter of the assembly groove is larger than the diameter of the internal thread groove. The inner tube is fixed to the inner rear part of the assembly groove. The inner tube is connected to the third pipe. The outer tube can be threadedly connected to the external thread connector through the internal thread groove. The elastic sealing component is assembled in the assembly groove.

3. The CRRT waste liquid collection device according to claim 2, characterized in that: The elastic sealing assembly includes a spring and a sealing member, and the sealing member includes a sealing plate and a limiting rod. There are multiple limiting rods, and multiple limiting rods are fixed to the front end of the sealing plate. Multiple limiting rods are longitudinally slidably assembled in the internal thread groove to keep the sealing plate concentric with the internal thread groove. The diameter of the sealing plate is between the diameter of the internal thread groove and the diameter of the assembly groove, and the spring is assembled between the sealing plate and the inner cylinder.

4. The CRRT waste liquid collection device according to claim 3, characterized in that: There are three limiting rods, and the three limiting rods are distributed in a ring array around the center of the sealing plate.

5. The CRRT waste liquid collection device according to claim 3, characterized in that: The limiting rod and the sealing plate are an integrally formed structure.

6. The CRRT waste liquid collection device according to claim 3, characterized in that: A flexible sealing pad is provided at the front end of the sealing plate.

7. The CRRT waste liquid collection device according to claim 2, characterized in that: The outer wall of the inner cylinder is bonded to the inner wall of the assembly groove.

8. The CRRT waste liquid collection device according to claim 1, characterized in that: The second pipeline and the third pipeline are connected to the first pipeline through a three-way joint.

9. The CRRT waste liquid collection device according to claim 1, characterized in that: The bag body is provided with a hanging portion at one end of the first pipe.

10. The CRRT waste liquid collection device according to claim 9, characterized in that: There are two hanging parts, and the two hanging parts are symmetrically distributed on the left and right sides of the first pipe.

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