CN209967255U - Unidirectional flow's venous transfusion auxiliary device - Google Patents

Abstract

The utility model discloses an one-way flowing's venous transfusion auxiliary device, including oval buffer tube, both sides are provided with feed liquor pipe and drain pipe about the buffer tube, feed liquor pipe and drain pipe sealing connection, feed liquor pipe part sets up in the buffer tube, the feed liquor pipe is connected along being provided with cavity round platform shape water conservancy diversion down, the water conservancy diversion is connected and is provided with assorted round platform shape water conservancy diversion platform, below side and the bottom surface of water conservancy diversion platform middle part are provided with a plurality of drain holes, the drain hole of water conservancy diversion side and bottom surface is linked together, water conservancy diversion bottom surface border is provided with and connects assorted limiting plate with the water conservancy diversion, the water conservancy diversion connects and is provided with the elasticity sealing. The utility model discloses simple structure, it is convenient to use, can effectually prevent the emergence of blood or liquid medicine refluence scheduling problem for venous transfusion is safe and reliable more.

Description

Unidirectional flow's venous transfusion auxiliary device

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to venous transfusion auxiliary device of one-way flow.

Background

Intravenous infusion therapy is a therapy method of directly infusing various sterile solutions or medicines through veins, and is one of the most basic and most commonly used therapy methods in modern clinical therapeutics due to rapid onset and definite curative effect. At present, a disposable infusion tube is often used for infusion, but in the infusion process, the pressure in the infusion tube is often reduced due to posture changing, walking, arm raising and the like, so that venous blood flows back into the infusion device, the blood is easy to coagulate and block in the tube, the infusion is influenced, meanwhile, the psychological pressure of a patient is easy to cause, the mood such as uneasiness is generated, the relaxation of the mood of the patient and the dredging treatment of the condition of the patient are not facilitated, and the adverse effects such as medical disputes are easy to cause.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model provides a unidirectional flow's venous transfusion auxiliary device, simple structure, it is convenient to use, can effectually prevent the emergence of blood or liquid medicine refluence scheduling problem for venous transfusion is safe and reliable more.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: the utility model provides a venous transfusion auxiliary device of one-way flow, including oval buffer tube, both sides are provided with feed liquor pipe and drain pipe about the buffer tube, feed liquor pipe and drain pipe sealing connection, feed liquor pipe part sets up in the buffer tube, the feed liquor pipe is followed down and is provided with cavity round platform shape water conservancy diversion and connect, be provided with assorted round platform shape water conservancy diversion platform in the water conservancy diversion connects, below the middle part of the water conservancy diversion platform side and bottom surface are provided with a plurality of drain holes, the drain hole of water conservancy diversion platform side and bottom surface is linked together, water conservancy diversion platform bottom surface border is provided with and connects assorted limiting plate with the water conservancy diversion, the water conservancy diversion connects.

The utility model has the advantages that: when in intravenous infusion, the device is connected with an infusion tube, a buffer tube is arranged at the lower part of the infusion tube close to one side of a needle head, the device can play a role of preventing liquid medicine or blood from flowing back more quickly, when no liquid medicine enters, a flow guide table is attached to a flow guide joint, no liquid medicine enters a flow guide hole, an elastic sealing strip is also in a relaxed state, when the liquid medicine flows in the forward direction, the liquid medicine flows to the flow guide joint, the flow guide table moves downwards for a certain distance under the action of the gravity of the liquid medicine, the elastic sealing strip is also stretched downwards to be in a tightened state, the liquid medicine continues to flow downwards through a gap between the flow guide joint and the flow guide table, flows into the flow guide table from the flow guide hole at the side of the flow guide table, then flows into the buffer tube from the flow guide hole at the bottom, finally, the infusion tube carries out infusion through a liquid, simultaneously, liquid in the buffer pipe also has a certain squeezing effect, so that the elastic sealing strip is restored to a relaxed state, the guide table and the guide joint are attached again to enable a gap between the guide table and the guide joint to disappear, the liquid inlet pipe is plugged simultaneously, the limiting plate below the guide table is tightly attached to the lower edge of the guide joint, liquid medicine or blood in the pipe does not continuously flow back, the unidirectional flow of the liquid medicine is realized, and the liquid medicine or the blood is prevented from flowing back. The utility model provides an auxiliary device infuses through the clearance between water conservancy diversion joint and water conservancy diversion platform, and elastic sealing strip connects between water conservancy diversion joint bottom and limiting plate for the liquid medicine only can flow from the drain hole, realizes preventing the function of liquid medicine or blood backward flow simultaneously through laminating zero clearance between the two, and is simple convenient, makes venous transfusion safe and reliable more, and medical personnel and patient can use at ease, avoids the production of doctor-patient dispute.

Furthermore, a fixed plate is arranged at the top of the flow guide table, and a limit block matched with the fixed plate is arranged in the liquid inlet pipe.

The beneficial effect of adopting the further scheme is that: use the stopper to carry on spacingly to the fixed plate, when the liquid medicine forward flows, the fixed plate breaks away from the stopper along with water conservancy diversion platform downstream, and the liquid medicine flows in the clearance, and when taking place against the current, the fixed plate is along with water conservancy diversion platform rebound, and water conservancy diversion platform and water conservancy diversion connect the laminating, and the fixed plate is closely laminated with the limiting plate this moment, and the limiting plate plays limiting displacement to fixed plate and water conservancy diversion platform, prevents that it from continuing rebound, connects or feed liquor pipe produces certain pressure to the water conservancy diversion.

Further, the distance from the limiting block to the bottom of the liquid inlet pipe is equal to the height of the fixing plate, and the length of the fixing plate is equal to the diameter of the liquid inlet pipe.

The beneficial effect of adopting the further scheme is that: guarantee that the fixed plate can shelter from the feed liquor pipe, and carry on spacingly by the stopper, closely laminate each other, prevent that liquid medicine or blood from continuing to flow back.

Furthermore, buffer tube, feed liquor pipe and drain pipe integrated into one piece.

The beneficial effect of adopting the further scheme is that: the integrated into one piece leakproofness is better, can not appear leaking gas the circumstances such as, guarantees its functionality that prevents the backward flow.

Furthermore, the auxiliary device is made of polyvinyl chloride.

The beneficial effect of adopting the further scheme is that: the polyvinyl chloride-supported infusion auxiliary device is light in weight, acid-resistant, alkali-resistant and corrosion-resistant, can be suitable for different liquid medicines, is transparent and non-toxic in material, and is convenient to observe and widely used.

Drawings

FIG. 1 is a schematic view of a forward flow;

FIG. 2 is a schematic representation of a counter flow;

FIG. 3 is a schematic view of a flow coupling;

wherein, 1, buffer tube; 2. a liquid inlet pipe; 3. a flow guide joint; 4. a flow guide table; 5. a fixing plate; 6. a limiting block; 7. a limiting plate; 8. an elastic sealing tape; 9. a drain hole; 10. a liquid outlet pipe.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

The utility model discloses an embodiment, as shown in fig. 1-3, a unidirectional flow's venous transfusion auxiliary device is provided, including oval buffer tube 1, both sides are provided with feed liquor pipe 2 and drain pipe 10 about buffer tube 1, feed liquor pipe 2 and drain pipe 10 sealing connection, 2 parts of feed liquor pipe set up in buffer tube 1, feed liquor pipe 2 is down along being provided with cavity round platform shape water conservancy diversion joint 3, the water conservancy diversion is connected and is provided with assorted round platform shape water conservancy diversion platform 4 in 3, below side in the middle part of water conservancy diversion platform 4 and bottom surface are provided with a plurality of drain holes 9, the drain holes 9 of water conservancy diversion platform 4 side and bottom surface are linked together, water conservancy diversion platform 4 bottom surface border is provided with and connects 3 assorted limiting plate 7 with the water conservancy diversion, be provided with elasticity sealing strip 8 between 3 bottom and the limiting. When in intravenous infusion, the device is connected with an infusion tube, a buffer tube is arranged at the lower part of the infusion tube close to one side of a needle head, the effect of preventing liquid medicine or blood from flowing back can be achieved more quickly, when no liquid medicine enters, a flow guide table 4 is attached to a flow guide joint 3, no liquid medicine enters a flow guide hole, an elastic sealing strip 8 is also in a relaxed state, when the liquid medicine flows forwards, the liquid medicine flows to the flow guide joint 3, the flow guide table 4 moves downwards for a certain distance under the action of the gravity of the liquid medicine, the elastic sealing strip 8 is also stretched downwards to be in a tightened state, the liquid medicine continues to flow downwards through a gap between the flow guide joint 3 and the flow guide table 4, enters the flow guide table 4 from the flow guide hole at the side of the flow guide table 4, then flows out from the flow guide hole at the bottom to enter a flow guide table 1, finally, the infusion is carried out, form pressure differential inside and outside the water conservancy diversion connects 3, the liquid in the buffer tube 1 also has certain squeezing action simultaneously for elastic sealing strip 8 resumes the relaxed state, water conservancy diversion platform 4 and water conservancy diversion connect 3 laminating again to make the clearance between the two disappear, plug up feed liquor pipe 2 simultaneously, water conservancy diversion platform 4 below limiting plate 7 also hug closely water conservancy diversion and connect 3 lower edges, intraductal liquid medicine or blood no longer continue the backward flow, thereby realize the unidirectional flow of liquid medicine, prevent liquid medicine or blood backward flow. The utility model provides an auxiliary device infuses through the clearance between water conservancy diversion joint 3 and water conservancy diversion platform 4, and elastic sealing strip 8 is connected between water conservancy diversion joint 3 bottom and limiting plate 7 for the liquid medicine only can flow from drain hole 9, realizes preventing the function of liquid medicine or blood backward flow through laminating zero clearance between the two simultaneously, and is simple convenient, makes venous transfusion safe and reliable more, and medical personnel and patient can use at ease, avoids the production of doctor-patient dispute.

A fixed plate 5 is arranged at the top of the flow guide table 4, and a limited block 6 matched with the fixed plate 5 is arranged in the liquid inlet pipe 2; use stopper 6 to carry on spacingly to fixed plate 5, when the liquid medicine forward flows, fixed plate 5 is along with water conservancy diversion platform 4 downstream, break away from stopper 6, the liquid medicine flows in the clearance, when taking place against the current, fixed plate 5 is along with water conservancy diversion platform 4 rebound, water conservancy diversion platform 4 connects 3 laminating with the water conservancy diversion, fixed plate 5 and limiting plate 7 closely laminate this moment, limiting plate 7 plays limiting displacement to fixed plate 5 and water conservancy diversion platform 4, prevent that it from continuing the rebound, connect 3 or feed liquor pipe 2 to the water conservancy diversion and produce certain pressure. Stopper 6 highly equals with fixed plate 5 to the distance of feed liquor pipe 2 bottoms, and fixed plate 5 length equals with feed liquor pipe 2 diameters, guarantees that fixed plate 5 can shelter from feed liquor pipe 2, and carries out spacingly by stopper 6, closely laminates each other, prevents that liquid medicine or blood from continuing to flow back. Buffer tube 1, feed liquor pipe 2 and drain pipe 10 integrated into one piece, the integrated into one piece leakproofness is better, can not appear leaking gas the circumstances such as gas, guarantees its functionality that prevents the backward flow. The auxiliary device is made of polyvinyl chloride, and the polyvinyl chloride-supported infusion auxiliary device is light in weight, acid-resistant, alkali-resistant and corrosion-resistant, can be suitable for different liquid medicines, is transparent and nontoxic in material, and is convenient to observe and widely used.

When the liquid medicine transfusion buffer tube is used, when no liquid medicine enters, the flow guide table 4 is attached to the flow guide joint 3, no liquid medicine enters the flow guide hole, when the liquid medicine flows in the forward direction, the liquid medicine flows to the position of the flow guide joint 3, the fixing plate 5 and the flow guide table 4 move downwards for a certain distance under the action of the gravity of the liquid medicine, the elastic sealing strip 8 is stretched downwards to be in a tight state, the liquid medicine continuously flows downwards through a gap between the flow guide joint 3 and the flow guide table 4, enters the flow guide table 4 from the flow guide hole in the side face of the flow guide table 4, flows out from the flow guide hole in the bottom to enter the flow guide table 1, and finally, the liquid; when liquid medicine or blood flow back, the transfer line internal pressure is less, form the pressure differential inside and outside water conservancy diversion connects 3, the liquid in buffer tube 1 also has certain squeezing action simultaneously, make elastic sealing strip 8 resume the relaxed state, water conservancy diversion platform 4 makes the clearance between the two disappear with laminating water conservancy diversion connects 3 again, plug up feed liquor pipe 2 simultaneously, water conservancy diversion connects 3 lower edges also hug closely to limiting plate 7 of water conservancy diversion platform 4 below, fixed plate 5 is spacing with the laminating of stopper 6, liquid medicine or blood no longer continue the backward flow, thereby realize the one-way flow of liquid medicine, prevent liquid medicine or blood backward flow. The utility model discloses simple structure, it is convenient to use, can effectually prevent the emergence of blood or liquid medicine refluence scheduling problem for venous transfusion is safe and reliable more.

While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims (5)

1. A unidirectional flow venous transfusion auxiliary device is characterized by comprising an elliptical buffer tube (1), a liquid inlet pipe (2) and a liquid outlet pipe (10) are arranged on the upper side and the lower side of the buffer pipe, the liquid inlet pipe (2) is hermetically connected with the liquid outlet pipe (10), the liquid inlet pipe (2) is partially arranged in the buffer pipe (1), a hollow circular truncated cone-shaped flow guide joint (3) is arranged at the lower edge of the liquid inlet pipe (2), a matched circular truncated cone-shaped diversion table (4) is arranged in the diversion connector (3), a plurality of liquid guide holes (9) are arranged on the side surface and the bottom surface below the middle part of the flow guide table (4), the side surface of the flow guide table (4) is communicated with the liquid guide hole (9) on the bottom surface, a limiting plate (7) matched with the flow guide joint (3) is arranged at the edge of the bottom surface of the flow guide table (4), an elastic sealing strip (8) is arranged between the bottom of the flow guide joint (3) and the limiting plate (7).

2. The unidirectional flow venous transfusion auxiliary device as claimed in claim 1, wherein a fixing plate (5) is arranged on the top of the flow guide table (4), and a limiting block (6) matched with the fixing plate (5) is arranged in the liquid inlet pipe (2).

3. The unidirectional flow venous transfusion auxiliary device as claimed in claim 2, characterized in that the distance from the limiting block (6) to the bottom of the liquid inlet pipe (2) is equal to the height of the fixing plate (5), and the length of the fixing plate (5) is equal to the diameter of the liquid inlet pipe (2).

4. A unidirectional flow intravenous infusion aid as claimed in claim 1, wherein said buffer tube (1), said inlet tube (2) and said outlet tube (10) are integrally formed.

5. A unidirectional flow intravenous infusion aid as claimed in claim 1, wherein said aid is formed of polyvinyl chloride.

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