CN216653024U

CN216653024U - Infusion apparatus with anti-reflux valve filter

Info

Publication number: CN216653024U
Application number: CN202122500389.4U
Authority: CN
Inventors: 洪远; 陈锡创; 黄凯
Original assignee: Wuxi Childrens Hospital
Current assignee: Wuxi Childrens Hospital
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-06-03
Anticipated expiration: 2031-10-18

Abstract

The utility model relates to the field of medical instruments, in particular to an infusion apparatus with a backflow resisting valve filter, which comprises a puncture needle, a drip cup, a backflow resisting filter, an air filter and a hose, wherein the puncture needle is arranged at the front end of the hose, the drip cup is arranged below the puncture needle, the air filter is arranged below the drip cup, and the backflow resisting filter is arranged below the air filter; the drip cup, the anti-reflux filter and the air filter are all integrally communicated with the hose, and the anti-reflux infusion apparatus is internally provided with a three-flap valve and a flow stopping ball. According to the utility model, the anti-reflux valve is additionally arranged on the basis of the precision filter, the effect of preventing blood from refluxing is achieved through the matching of the first valve, the second valve and the third valve, and the drainage lines on the surface of the valve help the liquid medicine to circulate; the cooperation between flow stopping ball and the valve resists the palirrhea and carries out the secondary guarantee, avoids the valve to damage when closed incomplete, the blood backward flow condition appears, avoids causing the injury to the human body.

Description

Infusion apparatus with anti-reflux valve filter

Technical Field

The utility model relates to the field of medical instruments, in particular to an infusion apparatus with a backflow resisting valve filter.

Background

The disposable infusion apparatus is a medical apparatus commonly used in clinic, is usually used for intravenous infusion, and when in use, the liquid medicine flows into the vein through the infusion apparatus under the action of atmospheric pressure; however, the conventional infusion apparatus lacks protective measures, and particularly when no person is accompanied, blood backflow is easily caused after the liquid medicine is dripped, so that the life of a patient is threatened. Therefore, the accompanying person or the medical care personnel is required to pay attention to the observation in time during the transfusion, the workload of the medical care personnel is increased, and the psychological burden of patients and accompanying personnel is increased. The infusion set for preventing backflow developed by the current research institution fails to have a good backflow preventing effect with a safe and effective sight line, and has a complex structure and high cost.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an infusion set with an anti-regurgitation valve filter to solve the problem of blood regurgitation as mentioned above in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: an infusion apparatus with a backflow-resistant valve filter comprises a puncture needle 1, a drip cup 3, a backflow-resistant filter 5, an air filter 6 and a hose 4, wherein the puncture needle 1 is arranged at the front end of the hose 4, the drip cup 3 is arranged below the puncture needle 1, the air filter 6 is arranged below the drip cup 3, and the backflow-resistant filter 5 is arranged below the air filter 6; the drip cup 3, the anti-backflow filter 5 and the air filter 6 are all in integral communication with the hose 4.

An exhaust hole 8 is formed in one side of the puncture needle 1, a flow stopping clip 2 is arranged on the hose 4 below the puncture needle 1, a connecting valve 7 is arranged at the other end, far away from the puncture needle 1, of the hose 4, and the connecting valve 7 is connected with the needle head.

The anti-backflow filter 5 is in a water-drop shape, the middle of the anti-backflow filter 5 is provided with the filter layer 51, the lower end of the anti-backflow filter 5 is provided with a valve film layer 52 and a flow stopping ball 53, and the valve film layer 52 is arranged above the flow stopping ball 53.

The valve layer 52 comprises a first valve 521, a second valve 522 and a third valve 523, the first valve 521, the second valve 522 and the third valve 523 being annularly arranged; the surfaces of the first valve 521, the second valve 522 and the third valve 523 are provided with drainage veins 524; when the liquid in the flexible tube 4 flows downstream, the valve layer 52 is in an open state; when the liquid in the tube 4 flows backward, the valve layer 52 is closed.

The flow stopping ball 53 is arranged on the ball seat 54, the ball seat 54 is in a hollow cylindrical shape, an inverted cone funnel 541 is arranged above the ball seat 54, and the section of the inverted cone funnel 541 is in an inverted trapezoid shape; the flow stopping ball 53 is arranged on the inverted cone 541; liquid outlet holes 542 are formed in the lower portion of the ball seat 54, and the liquid outlet holes 542 are strip-shaped holes.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the anti-reflux valve is additionally arranged on the basis of the precision filter, the effect of preventing blood from refluxing is achieved through the matching of the first valve, the second valve and the third valve, and the drainage lines on the surface of the valve help the liquid medicine to circulate; the cooperation between flow stopping ball and the valve resists the palirrhea and carries out the secondary guarantee, avoids the valve to damage when closed incomplete, the blood backward flow condition appears, avoids causing the injury to the human body.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of an anti-reflux filter according to the present invention;

FIG. 3 is a second schematic view of the anti-reflux filter of the present invention;

FIG. 4 is one of the schematic views of the valve layer of the present invention;

FIG. 5 is a second schematic view of the valve layer of the present invention;

fig. 6 is a schematic view of a ball seat of the present invention.

In the figure: 1. puncturing needle; 2. a flow stopping clip; 3. a drip cup; 4. a hose; 5. an anti-reflux filter; 51. a filter layer; 52. a valve layer; 521. a first valve; 522. a second valve; 523. a third valve; 524. drainage lines; 53. a flow stopping ball; 54. a ball seat; 541. an inverted cone funnel; 542. and a liquid outlet hole.

Detailed Description

The present invention will be described in further detail with reference to the following examples in order to clarify technical problems, technical solutions, implementation processes and performance displays. It should be understood that the specific embodiments described herein are for illustrative purposes only. The present invention is not limited to the above embodiments. Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

As shown in fig. 1-6, an infusion apparatus with an anti-regurgitation valve filter comprises a puncture needle 1, a drip cup 3, an anti-regurgitation filter 5, an air filter 6 and a hose 4, wherein the puncture needle 1 is arranged at the front end of the hose 4, the drip cup 3 is arranged below the puncture needle 1, the air filter 6 is arranged below the drip cup 3, and the anti-regurgitation filter 5 is arranged below the air filter 6; the drip cup 3, the anti-backflow filter 5 and the air filter 6 are all in integral communication with the hose 4.

An exhaust hole 8 is formed in one side of the puncture needle 1, a flow stopping clamp 2 is arranged on the hose 4 below the puncture needle 1, a connecting valve 7 is arranged at the other end, away from the puncture needle 1, of the hose 4, and the connecting valve 7 is connected with the needle head.

When the infusion apparatus is used for normal infusion, the liquid in the hose is in a downstream state, the first valve, the second valve and the third valve are in an open state, the liquid medicine flows down along the drainage pattern, the flow stopping ball is fixed on the ball seat due to the downstream pressure of the liquid medicine, and the liquid medicine flows into the next section of hose to continue infusion; after the liquid medicine is infused, when blood backflow occurs, the blood reversely flows to drive the flow stopping ball to move upwards, and at the moment, the valve is closed upwards under the pressure of the blood backflow; the stop ball moves to the closed position and stops, and the blood stops flowing back.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An infusion apparatus with a backflow-resistant valve filter is characterized by comprising a puncture needle (1), a drip cup (3), a backflow-resistant filter (5), an air filter (6) and a hose (4), wherein the puncture needle (1) is arranged at the front end of the hose (4), the drip cup (3) is arranged below the puncture needle (1), the air filter (6) is arranged below the drip cup (3), and the backflow-resistant filter (5) is arranged below the air filter (6); the drip cup (3), the anti-backflow filter (5) and the air filter (6) are all integrally communicated with the hose (4).

2. The infusion apparatus with the anti-reflux valve filter according to claim 1, wherein an exhaust hole (8) is formed in one side of the puncture needle (1), a flow stopping clip (2) is arranged on the hose (4) below the puncture needle (1), a connecting valve (7) is arranged at the other end, away from the puncture needle (1), of the hose (4), and the connecting valve (7) is connected with the needle head.

3. The infusion set with the valve filter for preventing the reverse flow according to claim 1, wherein the filter for preventing the reverse flow (5) is in a water drop shape, a filter layer (51) is arranged in the middle of the filter for preventing the reverse flow, a valve membrane layer (52) and a flow stopping ball (53) are arranged at the lower end of the filter for preventing the reverse flow (5), and the valve membrane layer (52) is arranged above the flow stopping ball (53).

4. The infusion set with an anti-regurgitation valve filter according to claim 3 characterised in that the valve layer (52) comprises a first valve (521), a second valve (522) and a third valve (523), the first valve (521), the second valve (522) and the third valve (523) being annularly arranged; the surfaces of the first valve (521), the second valve (522) and the third valve (523) are provided with drainage veins (524); when the liquid in the hose (4) flows downstream, the valve membrane layer (52) is in an open state; when the liquid in the hose (4) flows reversely, the valve membrane layer (52) is in a closed state.

5. The infusion set with the anti-reflux valve filter according to claim 3, wherein the flow stopping ball (53) is arranged on a ball seat (54), the ball seat (54) is hollow and cylindrical, an inverted cone funnel (541) is arranged above the ball seat (54), and the section of the inverted cone funnel (541) is inverted trapezoid; the flow stopping ball (53) is arranged on the inverted cone funnel (541); liquid outlet holes (542) are formed in the lower portion of the ball seat (54), and the liquid outlet holes (542) are strip-shaped holes.