Medical semi-automatic drain liquid metering and storing apparatus

Abstract

A semi-automatic metering accumulator of drainage fluid for medical purpose is composed of a box body, a box cover with the guide and anti-reflux mechanism of drainage fluid, a panel with a longitudinal metering scale, and a drainage fluid discharging valve. Said box body has a big fluid storage cavity, a cylindrical small fluid storage cavity, and a tubular over-flow cavity arranged vertically in said small fluid storage cavity.

Description

technical field [0001] The invention relates to a medical semi-automatic drainage fluid metering storage device, which is used in medical clinics to measure the drainage fluid of drainage patients so that medical staff can understand the pathological conditions of patients, and belongs to the technical field of medical devices. Background technique [0002] In view of the medical semi-automatic urine metering storage device introduced by Chinese patent application number ZL02123886.3, the disposable measurable plastic urine bag disclosed by ZL91225245.6, the electronic body fluid measuring instrument involved in ZL93224818.7, and the invention disclosed by ZL94242826.9 Disposable accurate metering double-chamber urine drainage device, a metering urine accumulation bottle given by ZL97211613.3, a urine metering bottle disclosed by ZL99209573.5, a patient urine discharge monitoring and metering device disclosed by ZL00221285.4, ZL01225226.3 and ZL01268645.X respectively recomm...

AI Technical Summary

Problems solved by technology

[0002] In view of the medical semi-automatic urine metering storage device introduced by Chinese patent application number ZL02123886.3, the disposable measurable plastic urine bag disclosed by ZL91225245.6, the electronic body fluid measuring instrument involved in ZL93224818.7, and the invention disclosed by ZL94242826.9 Disposable accurate metering double-chamber urine drainage device, a metering urine accumulation bottle given by ZL97211613.3, a urine metering bottle disclosed by ZL99209573.5, a patient urine discharge monitoring and metering device disclosed by ZL00221285.4, ZL01225226.3 and ZL01268645.X respectively recommends a urine bag with accurate measurement and a urine meter, etc., which have the following common shortcomings. Because they have only one urine storage cavity, they can only achieve single-stage measurement, thereby increasing clinical care. The troubles of work; two, when the urine in the urine storage container is to be discharged, both the liquid is not smooth and affects the speed of urination, and it is difficult to drain and affects the next measurement; the third, when the urine storage container is tilted or even When lying down, the urine will flow back from the urine inlet, which is not hygienic and affects the comfort of the patient; fourth, many urine storage containers are soft, such as made of film, which is affected by the thermal expansion of the climate. The cold shrinkage deformation coefficient and the artificial compression deformation coefficient are large, resulting in inaccurate measurement, etc.

[0003] Therefore, large-scale hospitals in my country simply import medical semi-automatic urine metering storage devices from abroad. When the urine box is tilted or even overturned, the urine will flow back from the catheter interface, which is unfavorable to hygiene; Because the added air can only be supplied from the catheter interface, the air intake is limited, which affects the smooth flow of urination and prolongs the urination time; thirdly, because the catheter interface seat and the discharge valve are both arranged on the box body , the lower side, when in use, once urine is introduced into the first urine storage chamber, the entire box suspended under the use state will be seriously tilted, resulting in inaccurate measurement in the urine storage chamber, affecting To the patient's monitoring quality; Fourth, the first, second, third, and fourth urine storage cavity diversion grooves and overflow urine cavity diversion grooves that are separated by the extension of the partition are separated from the bottom cover of the box in turn. The urination port is getting farther and farther away, that is, the diversion groove of the second, third, and fourth urine storage chambers and the diversion groove of the liquid urine chamber to the urination port or the path or span is relatively large, resulting in prolonged drainage time

Because the overflow chamber is in the normally open (normally open) state, that is, it is normally connected to the overflow pipe extended at the bottom of the box body, so once the liquid enters the chamber, it will be guided through the discharge pipe and connected to the discharge pipe. In the liquid collection bag on the tube, it cannot accurately and truly reflect the actual drainage volume of the patient, which will affect or even mislead the medical staff, and affect the quality of clinical monitoring.

In addition, in the lying state, the normal overflow relationship between the first liquid storage chamber and the second and third liquid storage chambers is broken, overflowing from the first liquid storage chamber to the second large liquid storage chamber respectively. 1. Although the liquid in the third liquid storage chamber is stored in the second and third liquid storage chambers, since the measurement units have different grades, that is to say, the ones marked on the box body correspond to the first and second liquid storage chambers respectively. 1. The measurement scale marks of the third liquid storage chamber are not the same. The measurement scale marks corresponding to the first liquid storage chamber are relatively fine, in terms of 1ml, and correspond to the second and third storage chambers which are large liquid storage chambers. The metering scale mark of the liquid chamber is usually measured in every 5ml or even larger, so after the liquid in the first liquid storage chamber flows into the second and third liquid storage chambers, it will also bring useful information to the medical staff in recording the drainage volume of the patient. Inaccurate and affect the quality of clinical care

Some people may think that the above phenomenon can be avoided by sending a special person to carry the storage device during and after the operation of the patient and during the whole process of driving from the operating room to the ward, but this will not only cause damage to the human resources of medical staff waste, and will unnecessarily increase the workload of medical staff, especially the catheter connected to the patient's body will inevitably be dragged away from the patient, thereby causing more trouble

The above phenomenon also often occurs in ward nursing, for example, accidentally touching the box body and causing it to shake, or the patient leaves the bed to go to the toilet, etc., will cause the drainage fluid in the first liquid storage chamber to overflow into the overflow chamber, the second , the third liquid storage chamber, resulting in inaccurate measurement

[0005] The applicant found the reasons for the above problems. One is that the shape of the entire first liquid storage chamber is unreasonable; The first and second overflow ports in the second and third liquid storage chambers are located on the left and right walls of the first liquid storage chamber; the third is that the setting position of the overflow chamber is lacking, and it is separated between the first liquid storage chamber. back, so that the top surface of the first liquid storage chamber cannot form a seal with the lid, otherwise the drainage liquid in the first liquid storage chamber as a small liquid storage chamber cannot overflow into the overflow chamber; The drainage fluid in the large liquid storage chamber enters the overflow chamber, so the large liquid storage chamber must be artificially separated into the second and third liquid storage chambers, and the two can only communicate through the first and second overflow ports

[0006] Secondly, in addition to the box body and the box cover itself obtained by mold molding, the above-mentioned storage also has a box bottom cover that needs to be molded by the mold. As a result, the number of molds increases, and the workload of processing and assembly is large, which is not conducive to the high-efficiency mass production requirements of industrialization, but also ensures that there is no leakage between the bottom cover and the box body. homework difficulty

[0007] In addition, since the aforementioned reservoir is of a rectangular structure as a whole, the pressure will be weakened during the drainage, especially when the liquid volume is reduced, resulting in an inexhaustible phenomenon, so that a small amount of drainage fluid stays in the first and second outlets. , the third liquid storage chamber and stagnation in the diversion groove of the first and third liquid storage chambers, and the diversion groove of the overflow chamber, which will affect the accuracy of the next measurement

[0008] Furthermore, the structure of the discharge valve of the above-mentioned reservoir is unreasonable, because it is introduced into the discharge pipe as a liquid guide cavity by the groove that is recessed on the valve body, that is, the narrow neck, so the drainage There is a turning phenomenon in the flow of the liquid from the groove of the valve body to the liquid discharge pipe, which is not conducive to fast and smooth liquid discharge

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