CN2477188Y

CN2477188Y - Positive pressure blood return preventer of medical retained transfusion

Info

Publication number: CN2477188Y
Application number: CN 01207278
Authority: CN
Inventors: 潘子威
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-02
Filing date: 2001-03-02
Publication date: 2002-02-20
Anticipated expiration: 2011-03-02

Abstract

The utility model is a medical indwelling transfusion positive anti blood back device, comprising an infusion device and an indwelling casing base seat. The positive anti blood back device consists of a pipe body and a positive pressure generator. The pipe body is provided with at least three hollow siamesed branch pipes, wherein the front branch pipe is connected with the indwelling casing base seat; and the back branch pipe is connected with an injection, a transfusion and a blood collecting pipe. The middle branch pipe is internally provided with the positive pressure generator. The positive pressure generator takes a piston type structure, and also can be a peripheral adjustable low voltage air supply. The utility model avoids that thrombus is formed due to the blood back jamming in the process of clinical transfusion, and decreases the possibility that thrombus enters into the blood of the patient, thereby prolonging the useful time of the indwelling pipe, reducing the pipe sealing expense and reducing the nursing working load.

Description

The positive pressure device for preventing blood from returning back of medical retention transfusion

This utility model relates to medical device, specifically a kind of positive pressure device for preventing blood from returning back of medical retention transfusion.

Hospital has blood and refluxes after using venous cannulation, arterial cannulation, hemodialysis tube transfusion, blood sampling, dialysis at present, forms thrombosis, may have potential hazard to patient.For head it off, clinically by using 0.9% normal saline or heparin saline to wash being retained in endovascular sleeve pipe, the dilution blood that backflows ensures that sleeve pipe is unimpeded.The deficiency that prior art exists is:

1. be potentially dangerous in the patient infusion process, patient's transfusion effect can not get ensureing that clotting mechanism problematic patient can not use, increases patient's transfusion expense;

2. increased nursing staff's workload, the nurse need prepare and preserve heparin saline, regularly washing pipe.

The purpose of this utility model is in order to overcome above-mentioned deficiency, a kind of positive pressure device for preventing blood from returning back of medical retention transfusion is provided, avoid forming thrombosis because of blood refluxes to stop up in the clinical transfusion process, reduce the possibility that thrombosis enters patient blood, thereby prolong indwelling tube service time, reduce the tube sealing expense, reduce nursing work load.

The purpose of this utility model is achieved in that

A kind of positive pressure device for preventing blood from returning back of medical retention transfusion, this retained transfusion mainly comprise transfusion device and indwelling casing tube pedestal, it is characterized in that:

This positive pressure device for preventing blood from returning back is made up of body and malleation generator; This body has three hollow disjunctor arms at least, and wherein front end branched pipe interface connects the indwelling casing tube pedestal, and rear end branched pipe interface connects injection/transfusion/blood taking tube, in this intermediate section arm the malleation generator is housed.

Described malleation generator is the piston type structure, and this piston is that elastic material becomes elastic packing with the endoporus of the middle arm of body, and this piston connection one protrudes upward the piston rod of pore, and the head of this piston rod connects handle.

The top of described piston rod connects a thread bush, but this thread bush becomes precession, revolves being connected of moving back with screw thread with the body intermediate section arm mouth of pipe.

Described malleation generator also can be the low-pressure gas source of peripheral hardware adjustable pressure, the intermediate section arm of the compressed air pipe connected pipe body of this source of the gas.

The structure that the front end branched pipe of described body and indwelling casing tube pedestal can be connected for split also can be connecting body structure.

The rear end branched pipe of described body can be the single channel joint, also can be multi-way joint.

The vertical forward and backward branched pipe of the intermediate section arm of described body becomes " T " font.

This utility model has following actively useful effect:

1. avoid clinical retained transfusion to finish back blood and reflux, stop up remaining needle;

2. reduce the possibility that thrombosis enters patient blood;

3. the use of heparin saline when reducing tube sealing, all patients all can carry out retained transfusion;

4. reduce patient and be used for pipe sealing expense (10 yuan/day in front three hospital);

5. reduce nursing staff's workload;

6. prolong indwelling tube service time;

7. can select multiple connected mode for use;

8. have wide range of applications, this utility model can repack into:

1. malleation blood return prevention peripheral vein is lacked intubate;

2. long intubation tube in the malleation blood return prevention peripheral vein;

3. malleation blood return prevention arterial cannula pin;

4. the malleation blood return prevention liquid dialysis trocar;

5. the central vein intubate (PICC pipe) inserted of malleation blood return prevention peripheral vein;

6. malleation blood return prevention central vein intubate;

7. malleation blood return prevention single channel infusion connector;

8. malleation blood return prevention multichannel infusion connector.

Now in conjunction with the accompanying drawings:

Fig. 1 is that the body and the indwelling tube pedestal of positive pressure device for preventing blood from returning back of the present utility model is the structural representation of connecting body structure embodiment;

Fig. 2 is the structural representation of an embodiment of single channel positive pressure device for preventing blood from returning back of the present utility model, and its malleation generator is a source of the gas;

Fig. 3 is the structural representation of an embodiment of multichannel positive pressure device for preventing blood from returning back of the present utility model;

Fig. 4 is the sketch map that malleation generator of the present utility model is manual push-and-pull piston cylinder operator;

Fig. 5 is the sketch map that malleation generator of the present utility model is the screw propulsion piston cylinder operator.

Accompanying drawing number:

1. indwelling casing tube 2. indwelling casing tube pedestals 3. positive pressure device for preventing blood from returning back

4. body

401. front end branched pipe (interface) 402. intermediate section arms 403. rear end branched pipes (interface)

404. rear end branched pipe (interface) 405. rear end branched pipes (interface)

5. malleation generator (piston type or source of the gas formula)

501. piston 502. piston rods 503. handles

504. thread bush 505. pipe caps

6. source of the gas

Please refer to Fig. 1, this utility model is a kind of positive pressure device for preventing blood from returning back of medical retention transfusion, and this retained transfusion mainly comprises transfusion device and indwelling casing tube pedestal 2.

This positive pressure device for preventing blood from returning back 3 is made up of body 4 and malleation generator 5; This body has three hollow disjunctor arms at least, wherein front end branched pipe interface 401 connects indwelling casing tube pedestal 2, rear end branched pipe interface 403 connects injection or transfusion or blood taking tube, in this intermediate section arm 402, the malleation generator is housed, when stopping to infuse, the rear end branched pipe is sealed with the conventional enclosure method of hospital.

In the embodiment shown in fig. 4, described malleation generator 5 is the piston type structure, this piston 501 becomes elastic packing for elastic material with the endoporus of the middle arm 402 of body, these piston 501 connections one protrude upward the piston rod 502 of pore, the head of this piston rod connects handle 503, for ease of installing, the pipe cap 504 to bond or to be threaded is arranged on pore.

In the embodiment shown in fig. 5, the top of described piston rod 502 connects a thread bush 504, but this thread bush becomes precession, revolves being connected of moving back with screw thread with body intermediate section arm 402 mouths of pipe.

During enforcement, described malleation generator 5 also can be the low-pressure gas source 7 of peripheral hardware adjustable pressure, the intermediate section arm 402 of the compressed air pipe connected pipe body of this source of the gas is seen Fig. 2, and the malleation that this source of the gas produces during use can be clamped air hose and positive pressure air is enclosed in the body with clamp.

During enforcement, the front end branched pipe of described body can be seen Fig. 2, Fig. 3 for the structure that split is connected with the indwelling casing tube pedestal, also can see Fig. 1 for connecting body structure.

During enforcement, the rear end branched pipe of described body 4 can be seen Fig. 2 for single channel joint 402, also can be multi-way joint 402,403,404 ... see Fig. 3.

In embodiment illustrated in fig. 2, the intermediate section arm 402 vertical forward and backward branched pipes 401 of described body 4,403 one-tenth " T " fonts.

Claims

1. the positive pressure device for preventing blood from returning back of a medical retention transfusion, this retained transfusion mainly comprises transfusion device and indwelling casing tube pedestal, it is characterized in that:

2. the positive pressure device for preventing blood from returning back of medical retention transfusion as claimed in claim 1, it is characterized in that: described malleation generator is the piston type structure, this piston is that elastic material becomes elastic packing with the endoporus of the middle arm of body, this piston connection one protrudes upward the piston rod of pore, and the head of this piston rod connects handle.

3. the positive pressure device for preventing blood from returning back of medical retention transfusion as claimed in claim 2, it is characterized in that: the top of described piston rod connects a thread bush, but this thread bush becomes precession, revolves being connected of moving back with screw thread with the body intermediate section arm mouth of pipe.

4. the positive pressure device for preventing blood from returning back of medical retention transfusion as claimed in claim 1, it is characterized in that: described malleation generator also can be the low-pressure gas source of peripheral hardware adjustable pressure, the intermediate section arm of the compressed air pipe connected pipe body of this source of the gas.

5. the positive pressure device for preventing blood from returning back of medical retention transfusion as claimed in claim 1 is characterized in that: the structure that the front end branched pipe of described body and indwelling casing tube pedestal can be connected for split also can be connecting body structure.

6. the positive pressure device for preventing blood from returning back of medical retention transfusion as claimed in claim 1, it is characterized in that: the rear end branched pipe of described body can be the single channel joint, also can be multi-way joint.

7. the positive pressure device for preventing blood from returning back of medical retention transfusion as claimed in claim 1 is characterized in that: vertical forward and backward branched pipe one-tenth " T " font of the intermediate section arm of described body.