Drainage bag with sampling connector for peritoneal dialysis

Abstract

The utility model provides a peritoneal dialysis drainage bag with a sampling interface, which comprises a drainage bag body, a drainage tube and a sampling pipeline are respectively arranged on the drainage bag body, the drainage tube is respectively communicated with a dialysis interface and an infusion tube through a three-way joint, an infusion interface is arranged on the infusion tube, and the sampling pipeline is communicated with the dialysis interface. And the sampling pipeline is provided with a sampling interface. The sampling pipeline is arranged on the drainage bag body, and the sampling connector is arranged on the sampling pipeline, so that waste liquid in the drainage bag body can be sampled and detected through the sampling connector when a waste liquid sample needs to be detected, and the waste liquid sample is more convenient to take and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, it is a kind of drainage bag for peritoneal dialysis with sampling interface. BACKGROUND

[0002] Drainage bag is generally used to import the waste liquid generated in peritoneal dialysis, hemodialysis and other clinical treatment process. The drainage bag currently used in clinic only includes the bag body of one outlet of drainage pipeline, and the drainage pipeline can be switched according to the specific needs of treatment to ensure safety and hygiene during use. However, the existing drainage bag only has the function of collecting waste liquid during treatment. If sampling research is needed for the collected waste liquid, sampling operation can only be carried out after treatment is completed, which cannot meet the needs of timely sampling detection of waste liquid samples during treatment. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a kind of drainage bag for peritoneal dialysis with sampling interface, with the characteristics of convenient sampling detection of waste liquid sample.

[0004] The specific scheme is as follows: a kind of drainage bag for peritoneal dialysis with sampling interface, including drainage bag body, drainage pipe and sampling pipeline are respectively provided on the drainage bag body, the drainage pipe is communicated with dialysis interface and infusion tube respectively by three-way joint, infusion interface is provided on the infusion tube, sampling interface is provided on the sampling pipeline.

[0005] Preferably, the sampling interface includes a housing seat, a flow passage is provided on the housing seat, a housing is installed on the housing seat, a cavity is provided in the housing, the cavity is communicated with the flow passage, a through hole is provided on the end of the housing away from the housing seat, the through hole is communicated with the cavity, a flexible barrier is provided in the cavity, a counterbore is provided on the flexible barrier close to the housing, the counterbore is communicated with the flow passage, a cutting slot is provided on the end of the flexible barrier close to the through hole, the counterbore is communicated with the cutting slot, the inner wall of the cavity close to the through hole is a conical arc surface, and the flexible barrier close to the through hole is interference fit with the housing.

[0006] Preferably, the flexible barrier is a silica gel barrier.

[0007] Preferably, a sealing protection cap is detachably installed on the housing close to the through hole.

[0008] Preferably, the housing and the sealing protection cap are connected by threads.

[0009] Preferably, the thickness of the flexible barrier at the cutting slot is 1-3mm.

[0010] The utility model has the advantages that:

[0011] 1. The utility model discloses a sampling pipeline and a sampling interface are arranged on the drainage bag body, so that the waste liquid in the drainage bag body can be sampled and detected through the sampling interface when it is needed to detect the waste liquid sample, and the sampling of the waste liquid sample is more convenient.

[0012] 2. The sampling interface in the utility model, the flexible barrier piece with the cutting seam is used to realize the switch, and the inner wall of the cavity where the flexible barrier piece is located is set as a conical arc surface near the through hole, wherein the conical arc surface facilitates the end of the flexible barrier piece to be extruded into the shell during installation, and the extrusion force of the shell on the end of the flexible barrier piece can improve the sealing performance when the cutting seam is closed. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the drawings without the creative labor of the ordinary skilled in the art. Among them:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the sampling interface;

[0016] Figure 3 It is a front view of the sampling interface;

[0017] Figure 4 It is the A-A sectional view of Figure 3 ;

[0018] Figure 5 It is the enlarged view of the shell part in Figure 4 ;

[0019] Figure 6 It is the enlarged view of the flexible barrier piece in Figure 4 ;

[0020] Figure 7 It is a structural schematic diagram of the flexible barrier piece;

[0021] 5, the drainage bag body, 51, the drainage tube, 52, the sampling pipeline, 53, the tee joint, 54, the dialysis interface, 55, the infusion tube, 56, the infusion interface, 57, the sampling interface, 1, the shell seat, 2, the shell, 21, the cavity, 22, the through hole, 23, the conical arc surface, 3, the flexible barrier piece, 31, the counterbore, 32, the cutting seam, 4, the sealing protection cap. DETAILED DESCRIPTION

[0022] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0023] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor does it mean an embodiment that is separate from or mutually exclusive with other embodiments.

[0024] Embodiment 1

[0025] As Figure 1 shown, a drainage bag for peritoneal dialysis with a sampling interface, comprising a drainage bag body 5, the drainage bag body 5 is provided with a drainage tube 51 and a sampling pipeline 52 respectively, and the drainage bag body 5 is sealingly connected with the drainage tube 51 and the sampling pipeline 52 respectively. The drainage tube 51 is connected in communication with a dialysis interface 54 and an infusion tube 55 through a tee joint 53. The infusion tube 55 is provided with an infusion interface 56. The sampling pipeline 52 is provided with a sampling interface 57.

[0026] As Figures 2-7 shown, the sampling interface 57 comprises a shell seat 1, a shell 2 and a flexible barrier 3. The shell seat 1 is provided with a flow-through channel 11. The shell 2 is mounted on the shell seat 1, and the shell 2 is provided with a cavity 21. The cavity 21 is in communication with the flow-through channel 11. The shell 2 is provided with a through hole 22 at an end away from the shell seat 1, and the through hole 22 is in communication with the cavity 21. The cavity 21 is provided with the flexible barrier 3, and the flexible barrier 3 is a silica gel barrier in this embodiment. The flexible barrier 3 is provided with a counterbore 31 close to the shell 2, and the counterbore 31 is in communication with the flow-through channel 11. The flexible barrier 3 is provided with a cutting seam 32 close to an end of the through hole 22, and the thickness of the flexible barrier 3 at the cutting seam 32 is 1-3 mm. The counterbore 31 is in communication with the cutting seam 32. The inner wall of the cavity 21 close to the through hole 22 is a tapered curved surface 23, and the flexible barrier 3 close to the through hole 22 is in interference fit with the shell 2.

[0027] When the joint is not connected, the flexible barrier 3 with the cutting seam 32 at one end is accommodated in the housing 2, where the flexible barrier 3 and the housing 2 are in interference fit, and the cutting seam 32 is tightly closed under the extrusion of the housing 2, and the liquid in the flow passage 11 cannot flow out from the joint. The tapered camber 23 is arranged to facilitate the end of the flexible barrier 3 to be extruded into the housing 2 during installation, and the housing 2 has a certain extrusion force on the end of the flexible barrier 3 to improve the sealing performance of the cutting seam 32 when closed.

[0028] When it is needed to be connected, the connector or connecting pipe is inserted into the through hole 22, and the end of the flexible barrier 3 with the cutting seam 32 is extruded into the wider part of the cavity 21, and the flexible barrier 3 is continuously extruded to deform in the direction of the counterbore 31, so that the end of the flexible barrier 3 is in a stretched state, thereby opening the cutting seam 32.

[0029] The seal protection cap 4 is detachably installed on the housing 2 near one end of the through hole 22. The housing 2 and the seal protection cap 4 are connected by threads. The seal protection cap 4 further improves the sealing performance of the quick connector.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A peritoneal dialysis drainage bag with a sampling interface, characterized in that: The device includes a drainage bag body (5), on which a drainage tube (51) and a sampling tube (52) are respectively provided. The drainage tube (51) is connected to a dialysis port (54) and an infusion tube (55) respectively through a three-way connector (53). An infusion port (56) is provided on the infusion tube (55), and a sampling port (57) is provided on the sampling tube (52). The sampling port (57) includes a housing (1), on which a flow channel (11) is provided. A housing (2) is installed on the housing, and a cavity (21) is provided inside the housing (2). The cavity (21) is connected to the flow channel (11). The shell (2) has a through hole (22) at the end away from the shell base (1), the through hole (22) is connected to the cavity (21), the cavity (21) is provided with a flexible barrier (3), the flexible barrier (3) is provided with a countersunk hole (31) near the shell (2), the countersunk hole (31) is connected to the flow channel (11), the flexible barrier (3) is provided with a cutting slit (32) at the end near the through hole (22), the countersunk hole (31) is connected to the cutting slit (32), the inner wall of the cavity (21) near the through hole (22) is a conical arc surface, and the flexible barrier (3) near the through hole (22) is interference-fitted with the shell (2).

2. The peritoneal dialysis drainage bag with a sampling interface according to claim 1, characterized in that: The flexible barrier (3) is a silicone barrier.

3. The peritoneal dialysis drainage bag with a sampling interface according to claim 1, characterized in that: A sealing cap (4) is detachably installed on the housing (2) near the through hole (22).

4. The peritoneal dialysis drainage bag with a sampling interface according to claim 3, characterized in that: The housing (2) and the sealing cap (4) are connected by threads.

5. The peritoneal dialysis drainage bag with a sampling interface according to claim 1, characterized in that: The thickness of the flexible barrier (3) at the cut seam (32) is 1-3 mm.

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