CN211434366U

CN211434366U - Drip cup capable of preventing catheter from being blocked

Info

Publication number: CN211434366U
Application number: CN201921841904.1U
Authority: CN
Inventors: 江优; 谢世庚; 陈日志; 罗荣琼; 林平仔
Original assignee: Zhanjiang Jianliyuan Medical Supplies Co ltd
Current assignee: Zhanjiang Jianliyuan Medical Supplies Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-09-08
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a drip cup for preventing catheter blockage, which comprises an upper catheter, a drip cup, a lower catheter and a liquid bag, wherein the upper catheter is communicated with an inlet at the upper end of the drip cup, a drip core is arranged at the outlet of the upper catheter, and an upper check valve is arranged at the outlet at the bottom of the drip core; the outlet at the lower end of the drip cup is communicated with the lower guide pipe, and a lower one-way valve is arranged at the outlet at the lower end of the drip cup; the lower conduit is provided with a dropper valve, and the outlet of the lower conduit is communicated with the liquid bag. Can dredge the pipe through squeezing the drip cup, prevent the pipe from blocking up, and have the effect of preventing against current, preventing the infection, can effectively alleviate nursing work, improve medical quality, product simple structure, sensitivity is high, and easy to produce, it is with low costs.

Description

Drip cup capable of preventing catheter from being blocked

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a drip cup capable of preventing a catheter from being blocked.

Background

For therapeutic and diagnostic purposes, it is often necessary to deliver fluids into the human body or to drain and collect waste fluids from the body. To observe the rate of infusion or removal of fluid, a drip chamber is provided between the tubes, the most common example being in infusion sets. In recent years, this structure is also applied to a catheter of a lead-out device, and for example, in patent No. 201320537784.2, it is proposed to dispose a drip cup in a catheter of a drainage bag to observe a drip speed. It can be seen that the existing drip chamber, whether provided in the inlet conduit or the outlet conduit, is the only function to observe the drip speed.

The most common drainage bag or drainage bottle is used for guiding the waste liquid in vivo out of the body, the liquid discharged by the drainage is often mixed with some solid or viscous substances to block the catheter, in order to reduce the blockage, the inner diameter of the catheter is generally larger than 6mm, but the catheter still needs to be sucked or replaced by a syringe, so that the workload is increased, and the medical quality is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the drip cup for preventing the blockage of the catheter, which can dredge the catheter by extruding the drip cup on the basis of keeping the function of observing the dripping speed, prevent the blockage of the catheter, has the functions of preventing countercurrent and infection, can effectively reduce the nursing work and improve the medical quality.

In order to achieve the purpose, the invention adopts the following technical scheme.

The utility model provides a prevent drip cup of pipe jam, includes upper hose, drip cup, downcomer and liquid bag, its characterized in that:

the upper conduit is communicated with an inlet at the upper end of the drip cup, a drip core is arranged at the outlet of the upper conduit, and an upper one-way valve is arranged at the outlet at the bottom of the drip core;

the outlet at the lower end of the drip cup is communicated with the lower guide pipe, and a lower one-way valve is arranged at the outlet at the lower end of the drip cup;

the lower conduit is provided with a dropper valve, and the outlet of the lower conduit is communicated with the liquid bag.

It will be readily appreciated that with the above drip cup of the present invention, which prevents clogging of the catheter, the liquid is collected from the top down, through the upper catheter, the drip cup and the lower catheter, and finally into the bag.

Preferably, the drip cup is made of transparent plastic with elasticity. The shape and volume of the drip cup are not particularly limited, and the drip cup can be squeezed by fingers, can rebound and recover after being loosened, and can directly observe the dripping speed.

Preferably, the drip core is suspended in the drip cup, and the upper end of the drip core is communicated with the inlet at the upper end of the drip cup. Preferably, the outlet perimeter of the drop core is 9-10.5mm, and the outlet drop is 1mL per 19-21 drops.

Preferably, the upper check valve and the lower check valve have the same structure, and are mainly structurally a film tube formed by two plastic films which are overlapped and then thermally sealed at two sides, and the top end of the film tube is connected to the upper component through thermal sealing. When no liquid flows through, the middle lower parts of the two plastic films are naturally attached to separate the upper space from the lower space; when liquid passes through, the joint parts of the two plastic films open towards two sides, so that the liquid flows through.

Preferably, the plastic film is in a strip-shaped structure. Particularly suitably, the plastic film is made of PE material.

Preferably, the upper part of the plastic film is provided with a concave arc surface. The concave arc structure is more sensitive to the outer side pressure, so that the one-way valve is more sensitive to the response of pressure change.

Preferably, the bottoms of the valve bodies of the upper check valve and the lower check valve are provided with oval limiting seats, and the upper end part of the plastic film is thermally sealed with the limiting seats. The periphery of the limiting seat can be designed into an isolated surface structure so as to facilitate the smoothness of liquid and prevent residue.

The drip valve can be arranged at any position of the lower catheter and has the functions of opening and closing and controlling the flow rate of liquid. Optionally, a third one-way valve is provided at the outlet of the downcomer, which may be of the same material and construction as the upper and lower one-way valves.

It is easy for those skilled in the art to determine how to manufacture the product after knowing the structure of the product, and the detailed description is omitted here.

The product of the invention can effectively prevent and eliminate the blockage of the conduit by arranging the drip cup and the one-way valve. In the process of dredging the catheter, firstly, the drip cup is squeezed to generate positive pressure, the upper one-way valve is pressed to be closed, the lower one-way valve is opened, and blocking substances possibly existing in the lower catheter are pressed into the liquid bag to be collected; then the drip cup is loosened, the drip cup resets to generate negative pressure, the lower one-way valve is closed, the upper one-way valve is opened, and possible blockage in the upper catheter is sucked into the drip cup, so that the whole process also has the effects of backflow prevention and infection prevention. The drip cup made of transparent materials is also beneficial to observing the dripping speed so as to be adjusted in time.

Compared with the prior art, the invention has the beneficial effects that: the catheter can be dredged by extruding the drip cup under the action of the one-way valve, the catheter is prevented from being blocked, and the anti-reflux and anti-infection functions are realized, so that the nursing work can be effectively lightened, and the medical quality is improved. The product has simple structure, high sensitivity, easy production and low cost.

Drawings

FIG. 1 is a schematic view of the overall structure of a drip chamber for preventing blockage of a conduit according to the present invention;

FIG. 2 is a schematic view of a one-way valve closure configuration according to the present invention;

FIG. 3 is a schematic view of the one-way valve opening configuration of the present invention;

fig. 4 is a schematic structural view of the limiting seat according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention should not be construed as being limited to the scope of the present invention.

Example 1

As shown in figure 1, the drip cup for preventing the blockage of the guide pipe comprises an upper guide pipe 1, a drip cup 2, a lower guide pipe 3 and a liquid bag 4. Wherein, the drip cup 2 is made of transparent plastic with elasticity and is cylindrical; the liquid bag 4 is a transparent bag, and the surface of the liquid bag is marked with scales.

The upper conduit 1 is communicated with an inlet at the upper end of the drip cup 2, the upper conduit extends into the inlet at the upper end of the drip cup 2 a little, a drip core 5 is arranged at the outlet, the circumference of the outlet of the drip core 5 is about 10mm, and 1mL of liquid drops at the outlet is dropped in 19-21 times.

An upper one-way valve 6 is arranged at the bottom outlet of the dripping core 5.

The outlet at the lower end of the drip cup 2 is communicated with the lower guide pipe 3, and the outlet at the lower end of the drip cup 2 is provided with a lower one-way valve 8.

The downcomer 3 is provided with a dropper valve 9, the outlet of the downcomer 3 is communicated with the liquid bag 4, and the outlet of the downcomer 3 is provided with a third one-way valve 10.

The upper check valve 6, the lower check valve 8 and the third check valve 10 have the same structure, and are mainly constructed as film tubes formed by overlapping two strip-shaped plastic films 7 and then thermally sealing the two sides of the film tubes, and the bottom outlet of the drip core 5 and the bottom outlet of the drip cup 2 are provided with limit seats 70 (shown in figure 4) which are oval and have arc-shaped peripheral edges. The upper part of the plastic film 7 is provided with a concave arc surface 71, and the upper end part is thermally sealed with the limiting seat 70.

As shown in fig. 2 and 3, with the check valve having the above structure, when no liquid flows through, the middle and lower parts of the two plastic films 7 are naturally attached to separate the upper and lower spaces; when liquid passes through, the joint parts of the two plastic films 7 are opened towards two sides, so that the liquid flows through.

When the device works, liquid flows into the conduit 1, is dripped into the drip cup 2 through the drip core 5 and the upper one-way valve 6 under the action of gravity, and then flows into the liquid bag 4 through the lower one-way valve 8, the lower conduit 3 and the third one-way valve 10, and the dripping speed can be observed during the process, and the flow rate is estimated.

In the process of dredging the catheter, firstly, the drip cup 2 is squeezed to generate positive pressure, the upper one-way valve 6 is pressed to be closed, the lower one-way valve 8 is opened, and possible blockages in the lower catheter 3 are pressed into the liquid bag 4; then the drip cup 2 is released, the drip cup 2 is reset to generate negative pressure, the lower one-way valve 8 is closed, the upper one-way valve 6 is opened, and possible blockage in the upper conduit 1 is sucked into the drip cup 2. Through the operation, the blockage of the catheter can be effectively prevented and eliminated, and the reverse flow and infection prevention effects are achieved.

The foregoing description is only exemplary of the invention. From the above, those skilled in the art can make various changes and modifications without departing from the technical idea of the present invention. The protection scope of the present invention is not limited to the above-mentioned embodiments, but is subject to the scope defined by the claims.

Claims

1. The utility model provides a prevent drip cup of pipe jam, includes upper hose, drip cup, downcomer and liquid bag, its characterized in that:

2. The drip chamber of claim 1, wherein: the drip cup is made of transparent plastic with elasticity.

3. The drip chamber of claim 1, wherein: the drip core is suspended in the drip kettle, and the upper end of the drip core is communicated with the upper end inlet of the drip kettle.

4. A drip chamber for preventing clogging of a conduit as claimed in claim 1 or 3, wherein: the perimeter of the outlet of the drop core is 9-10.5mm, and the outlet drop is 1mL per 19-21 drops.

5. The drip chamber of claim 1, wherein: the upper check valve and the lower check valve have the same structure, and are mainly structurally a film tube formed by two plastic films which are overlapped and then thermally sealed at two sides, and the top end of the film tube is connected to an upper component through thermal sealing.

6. The drip chamber of claim 5, wherein: the plastic film is in a strip-shaped structure.

7. The drip chamber of claim 5, wherein: the upper part of the plastic film is provided with an inward concave arc surface.

8. The drip chamber of any one of claims 5 to 7, wherein: the bottom of the valve body of the upper one-way valve and the bottom of the valve body of the lower one-way valve are provided with oval limiting seats, and the upper end part of the plastic film is thermally sealed with the limiting seats.

9. The drip chamber of claim 8, wherein: the periphery of the limiting seat is designed into an isolated surface structure.

10. The drip chamber of claim 1, wherein: and a third one-way valve is arranged at the outlet of the lower conduit.