CN213466313U

CN213466313U - Transfusion system for hemodialysis

Info

Publication number: CN213466313U
Application number: CN202021191315.6U
Authority: CN
Inventors: 徐辉明; 冯丽珠; 张宇锋
Original assignee: Third Affiliated Hospital Sun Yat Sen University
Current assignee: Third Affiliated Hospital Sun Yat Sen University
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-06-18
Anticipated expiration: 2030-06-24

Abstract

The utility model relates to a transfusion device for hemodialysis, which comprises a puncture outfit, a Murphy's dropper, a transfusion tube and a flow regulating valve, and is characterized in that the puncture outfit is fixedly connected with the Murphy's dropper in a penetrating way, and the inner wall of the Murphy's dropper is provided with a fixedly connected limiting wedge block; a floating body is arranged between the interior of the Murphy's dropper and the limiting wedge block, a floating body cover is arranged above the floating body, and a floating body column is arranged below the floating body; a liquid outlet is arranged below the Murphy's dropper and is matched with the floating body column. The utility model discloses can prevent effectively that the air from getting into the transfusion system in, reduce the pollution risk, facilitate clinical operation, guarantee nurse and patient's safety.

Description

Transfusion system for hemodialysis

Technical Field

The utility model relates to the field of medical equipment, concretely relates to transfusion system for hemodialysis.

Background

At present, the realization of closed pre-flushing and closed blood returning in the hemodialysis process becomes a development trend of blood purification, and an important condition for realizing the closed state is that an infusion apparatus is connected with an arterial end T-shaped side tube of an extracorporeal circulation device. At present, infusion sets are arranged in pipeline devices produced by part of manufacturers, but the infusion sets have simple structures and cannot meet clinical requirements. Because the transfusion device is not provided with an air inlet prevention structure, in the process of infusion in the pre-flushing or dialysis process, the infusion liquid is easy to drip empty due to negligence of nursing staff, at the moment, a large amount of air enters a circulation pipeline to cause difficulty in air exhaust, if the infusion liquid drips empty, the risk that the air enters the body is increased, in the process of air exhaust, the blood loss of a patient is increased, and the chance of pollution is increased. The existing transfusion device is not provided with a filtering device, and the rubber scraps are easy to fall off due to frequent puncture of a normal saline rubber plug, and the substances can not be absorbed by a body and can not be metabolized and enter the body to cause great harm to a patient. The pipeline devices produced by a plurality of manufacturers are not provided with infusion sets, and need to be independently configured to realize closed pre-flushing and blood returning and infusion in a dialysis process, and the interface is easy to pollute in the process of connecting the infusion sets or the interface can not be specially configured and is easy to fall off. In view of the above, a safe infusion set dedicated for hemodialysis needs to be invented.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a special transfusion system of hemodialysis safe in utilization, it can prevent the air admission to reduce pollution and acupuncture risk.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an infusion set for hemodialysis, which is characterized by comprising a puncture outfit, a Murphy's dropper, an infusion tube and a flow regulating valve, and is characterized in that the puncture outfit is fixedly connected with the Murphy's dropper in a penetrating way, and the inner wall of the Murphy's dropper is provided with a fixedly connected limiting wedge block; a floating body is arranged between the interior of the Murphy's dropper and the limiting wedge block, a floating body cover is arranged above the floating body, and a floating body column is arranged below the floating body; a liquid outlet is arranged below the Murphy's dropper and is matched with the floating body column.

Furthermore, the outer end of the puncture outfit is provided with a puncture inclined plane.

Furthermore, the Murphy's dropper is provided with an air inlet passage which penetrates and is fixed, and the outer end of the air inlet passage is provided with a matched air inlet passage plug; an air filter is arranged in the air inlet passage.

Furthermore, the bottom of the Murphy's dropper is communicated with a three-way joint pipeline, and the other two through heads of the three-way joint are respectively fixedly communicated with the transfusion tube and the branch transfusion tube.

Furthermore, the branch transfusion tube is communicated with the first filter, and the tail end of the branch transfusion tube is provided with a first spiral connector which is fixedly connected; and a liquid stopping clamp is arranged between the first filter and the first spiral connector, and the liquid stopping clamp is in sliding sleeve joint with a branch transfusion tube.

Furthermore, the infusion tube is communicated with the second filter, and the tail end of the infusion tube is provided with a second rotary interface which is fixedly connected; and a flow regulating valve is arranged between the second filter and the three-way joint and is sleeved with the infusion tube.

Compared with the prior art, the utility model discloses the beneficial effect who gains as follows:

the utility model provides a set up on the transfusion system and prevent air admission subassembly, the body floats in the murphy's dropper along with liquid level to with the motion range of wedge restriction body, after the liquid infusion drips the sky, the liquid outlet is plugged up to the body free fall, prevents that the air from getting into the transfer line. The branch transfusion tube is provided with the first filter, and the transfusion tube is provided with the second filter, so that the glue scraps can be prevented from falling into the body of a patient. The three-way interface is convenient for the suction of physiological saline clinically, and can be used for the one-way blood return of arteriovenous internal fistula high pressure patients. The spiral connectors arranged at the ends of the branch infusion tube and the infusion tube can be well matched with the dialysis pipeline to prevent falling off.

The utility model discloses can prevent effectively that the air from getting into the transfusion system in, reduce the pollution risk, facilitate clinical operation, guarantee nurse and patient's safety.

Drawings

FIG. 1 is a schematic structural view of the Murphy's dropper of the present invention;

FIG. 2 is a schematic diagram of the external connection structure of the Murphy's dropper of the present invention;

in the drawings:

the device comprises a puncture outfit 1, a Murphy's dropper 2, a transfusion tube 3, a flow regulating valve 4, an air inlet passage 5, an air inlet passage plug 501, an air filter 502, a three-way joint 6, a transfusion tube 7, a liquid stopping clamp 701, a first spiral connector 8, a second spiral connector 9, a floating body 10, a limiting wedge block 11, a floating body column 12, a floating body cover 13, a first filter 14 and a second filter 15.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The transfusion device for hemodialysis shown in the attached figure 1 comprises a puncture outfit 1, a Murphy's dropper 2, a transfusion tube 3 and a flow regulating valve 4, wherein the puncture outfit 1 is fixedly connected with the Murphy's dropper 2 in a penetrating way, and the inner wall of the Murphy's dropper 2 is provided with a limiting wedge block 11 which is fixedly connected; a floating body 10 is arranged between the interior of the Murphy's dropper 2 and the limiting wedge block 11, a floating body cover 13 is arranged above the floating body 10, and a floating body column 12 is arranged below the floating body 10; a liquid outlet is arranged below the Murphy's dropper 2 and is matched with the floating body column 12; the limiting wedge block 11 limits the floating body 10, when the floating body cover 13 abuts against the limiting wedge block 11, the liquid outlet of the Murphy's dropper is opened, and when the floating body column 12 is inserted into the liquid outlet of the Murphy's dropper, the liquid outlet of the Murphy's dropper can be sealed, so that air is prevented from entering the liquid outlet.

The outer end of the puncture outfit 1 is provided with a puncture inclined plane, so that a soft rubber cover of the medical medicine bottle can be punctured more easily.

The Murphy's dropper 2 is provided with an air inlet passage 5 which is fixedly penetrated, and the outer end of the air inlet passage 5 is provided with a matched air inlet passage plug 501; the air filter 502 is arranged in the air inlet passage 5), so that air can be effectively filtered, and impurities are prevented from entering.

A three-way joint 6 is arranged between the bottom of the Murphy's dropper 2 and the infusion tube 3, and a first spiral connector 8 is arranged at the end part of a branch infusion tube 7 connected with the three-way joint 6, so that a screw cap is convenient to assemble. The end part of the infusion tube 3 is provided with a second spiral connector 9, the branch infusion tube 7 is provided with a liquid stopping clamp 701 and a first filter 14, and the infusion tube 3 is provided with a second filter 15 for preventing impurities from entering the infusion device and reducing pollution risks.

The using process is as follows:

during pre-flushing, a hemodialysis pipeline and a dialyzer are connected, the plastic puncture outfit 1 of the infusion set is inserted into the normal saline rubber plug, and the Murphy's dropper 2 is squeezed by fingers to fill with saline. The floating body 10 floats to the boundary line of the limiting wedge body 11, and when the saline water is emptied, the floating body 10 falls freely to block the liquid outlet and is embedded to prevent air from entering. If infusion is carried out in the dialysis process, the plastic puncture outfit 1 is inserted into infusion for infusion, infusion liquid drops to be empty, the floating body 10 falls freely to block the liquid outlet and is embedded to prevent air from entering.

If a syringe is needed to extract the infusion solution, the screw cap of the first screw connector 8 is unscrewed, the syringe is connected to the first screw connector 8, and the flow stopping clamp 701 is opened, so that the infusion solution can be extracted.

If one-way blood return is adopted, the arterial end of the dialysis pipeline is separated from the blood vessel access. The vascular access port was capped with a syringe drawn with saline. And the artery pipeline end is connected into the first spiral connector 8, and blood return can be realized by opening the flow stopping clamp 701, so that the operation time is saved, and the injury of acupuncture injury is avoided.

The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. An infusion apparatus for hemodialysis, which comprises a puncture outfit (1), a Murphy's dropper (2), an infusion tube (3) and a flow regulating valve (4), and is characterized in that the puncture outfit (1) is fixedly connected with the Murphy's dropper (2) in a penetrating way, and the inner wall of the Murphy's dropper (2) is provided with a limit wedge block (11) which is fixedly connected; a floating body (10) is arranged between the interior of the Murphy's dropper (2) and the limiting wedge block (11), a floating body cover (13) is arranged above the floating body (10), and a floating body column (12) is arranged below the floating body (10); a liquid outlet is arranged below the Murphy's dropper (2), and the liquid outlet is matched with the floating body column (12).

2. The transfusion system for hemodialysis according to claim 1, wherein the outer end of the puncture outfit (1) is provided with a puncture bevel.

3. The transfusion system for hemodialysis according to claim 1, wherein the Murphy's dropper (2) is provided with an air inlet passage (5) which is fixed in a penetrating way, and the outer end of the air inlet passage (5) is provided with a matched air inlet passage plug (501); an air filter (502) is provided in the intake passage (5).

4. The transfusion system for hemodialysis according to claim 1, wherein the bottom of the Murphy's dropper (2) is connected with a three-way joint (6) through a pipeline, and the other two through heads of the three-way joint (6) are respectively connected with the transfusion tube (3) and the branch transfusion tube (7) in a fixed and through way.

5. The transfusion system for hemodialysis according to claim 4, wherein the branch transfusion tube (7) is connected with the first filter (14) in a penetrating way, and the end of the branch transfusion tube (7) is provided with a first spiral connector (8) which is fixedly connected; a liquid stopping clamp (701) is arranged between the first filter (14) and the first spiral connector (8), and the liquid stopping clamp (701) is sleeved with the branch transfusion tube (7) in a sliding mode.

6. The transfusion system for hemodialysis according to claim 4, wherein the transfusion tube (3) is connected to the second filter (15) in a penetrating manner, and the end of the transfusion tube (3) is provided with a second rotary connector (9) which is fixedly connected; a flow regulating valve (4) is arranged between the second filter (15) and the three-way joint (6), and the flow regulating valve (4) is sleeved with the infusion tube (3).