CN112971860A

CN112971860A - Urine sample collection device for adsorbing urine by capillary effect

Info

Publication number: CN112971860A
Application number: CN202110173441.1A
Authority: CN
Inventors: 龚丽俐; 陶凤燕; 仇晓夏
Original assignee: Jiangsu Nantong Hygiene Vocational Technical School
Current assignee: Jiangsu Nantong Hygiene Vocational Technical School
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-18

Abstract

The invention discloses urine sample collection equipment for adsorbing urine by utilizing a capillary effect, which is characterized in that: it at least comprises a urine bag body, a sheet-shaped antifouling filter layer and a separable liquid absorption filler; the side surface of the urine bag body is provided with a urine inlet, and an adhesive patch is arranged around the urine inlet; the edge of the filter layer is connected with the inner wall surface of the bag body and is not higher than the lower edge of the inlet, and a filling cavity of the filler is arranged below the filter layer. The porous structure of the filler has capillary imbibition effect. The hospital is often unable to urinate by oneself patient, and the urine sample must be gathered with the help of the collection urine bag of subsides formula, but has the defects such as firm and the repeated collection rate is high of pasting. The urine sample collecting device of the invention utilizes the capillary effect to adsorb urine, basically overcomes the defects and has the following beneficial effects: repeated collection is reduced, and related medical quality is improved; the time consumed by the inspection is shortened, the pollution risk is reduced, and the detection result is more accurate.

Description

Urine sample collection device for adsorbing urine by capillary effect

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a urine sample collection method and the technical field of equipment.

Background

Clinically, common infant, postoperative anesthesia and the patient of losing intelligence, it can not control the micturition, must gather the urine sample with the help of pasting formula collection urine bag etc. nevertheless current pasting formula collection urine bag exists and pastes infirm, the repeated collection rate height grade defect, and the timeliness of sampling is waited for improving urgently.

The reason is that the existing sticking type urine bag has poor sealing reliability and has systematic defects:

according to clinical statistics, repeated sticking occurs in up to 70% of patients, with 30% male and 40% female.

Leakage and even falling off caused by the insecure sticking often occur.

Leakage can result in a single collection that is too long; detachment can result in repeated application of the urine bag.

According to the authoritative operating guidelines, the delivery test within 0.5h is optimal, and leakage or shedding is easy to introduce pollution. Therefore, as a result of the examination of the leakage situation, each microorganism index may be falsely high.

Repeated collection can affect the accuracy of the test, further cause discomfort of patients and increase dissatisfaction of family members. The quality of the associated medical treatment is reduced in its entirety.

The urine collection method and the urine collection equipment overcome the defects of infirm adhesion, high repeated collection rate and the like of the existing urine collection bag, the collection equipment absorbs urine by utilizing capillary effect, and the urine sample can be prevented from losing when the urine bag is infirm adhesion and even falls off. The invention has the beneficial effects that: repeated collection is reduced, and the quality of related medical procedures is improved; reduce the pollution risk and the time of delivery, reduce the systematic error of urine sample detection.

Disclosure of Invention

The invention discloses urine sample collecting equipment for adsorbing urine by utilizing a capillary effect, which is used for collecting a urine sample, wherein the capillary effect fixation adsorption can reduce leakage and falling off, improve the sealing reliability, and facilitate the subsequent separation and adsorption of liquid.

The invention discloses a urine collection device based on capillary effect, which is a medical instrument and is composed of one or more materials with high flexibility and low bending strength, and the urine collection device at least comprises: a urine bag body; at least one sheet-like antifouling filter layer; a separable liquid-absorbent filler.

The side of the urine bag body is provided with a unique opening, the opening is a urine inlet, and an adhesive patch is arranged around the opening.

The urine sample collecting device is filled on the outer surface of the cavity and can be provided with a collecting completion indicating line and a graduation line; if the indicating line and the scale line are not arranged, when the side surface of the urine bag body is only subjected to atmospheric pressure, and the upper liquid level of the stationary urine sample is flush with the lowest filtering layer, the completion of collection can be determined. The urine bag body, for the follow-up filler of taking out of convenience, preferred scheme can be equipped with easily tearing the design.

The antifouling filter layer is at least one layer, wherein the uppermost layer is not higher than the lowest point of the opening edge; the edges of the filtering layers are in seamless joint with the inner side surface of the urine bag body, and a filling cavity for the liquid absorption filler is arranged below the filtering layer at the lowest layer.

The liquid absorption filler has a porous (capillary hole, micropore, groove, microgap and the like) structure inside, generates capillary effect (also called capillary action) to absorb the urine sample, and can prevent the absorbed urine sample from losing again. In the environment of normal temperature and pressure and 50% relative humidity, the filler is selected to absorb urine sample which is not less than 15 times of the self weight of the urine sample. The antifouling filter layer is characterized in that each edge is seamlessly connected with each inner side surface of the urine bag body, and a filling cavity of the separable sterile liquid absorption filler is arranged below the antifouling filter layer; the liquid absorption filler is of an integrated structure and can be separated from the urine bag body.

The embodiment is provided with an upper filtering layer and a lower filtering layer, and if the liquid level is stably higher than the lowest filtering layer, the urine sample collection is completed. The embodiment is not provided with scale marks, and the main material of the filter layer is medical textile material.

The embodiment adopts an integrated structure as the filler, and the main material is medical sterile cotton.

The invention discloses urine sample collecting equipment for adsorbing urine by utilizing a capillary effect, which is used for collecting a urine sample, wherein the capillary effect fixation adsorption can reduce leakage and falling off, improve the sealing reliability, and facilitate the subsequent separation and adsorption of liquid. The urine collecting device can collect urine quickly and comfortably, reduce the incidence rate of false positive and the like, and improve the medical quality.

By definition, the term "capillary effect" is meant the phenomenon of the liquid in a capillary rising or falling against gravity. When the diameter of capillary tube (equivalent diameter) tends to be very small, the gravitation of capillary tube is always greater than the gravity of liquid in capillary tube, so that the liquid in capillary tube can be raised infinitely. So the adsorption performance is good, but the physical adsorption is not very strong, and the separation is easy in the later period.

Drawings

FIG. 1 is a schematic diagram of the construction of one embodiment of the urine sample collection apparatus of the present invention.

FIG. 2 is a schematic diagram of the filling chamber and the filling material of the embodiment of FIG. 1.

FIG. 3 is a schematic diagram of the structure of a container for placing a centrifuge for absorbing urine sample filler, which is used for collecting urine sample and subsequent solid-liquid separation.

In fig. 1: 1 is the urine bag body, 21 is first filter layer, 22 is the second filter layer, 31 is the filling chamber of urine bag inner chamber, 32 is the separable integral type filler in 31, 41 is the stickness paster, 42 is the urine bag opening, 5 is the cutting apart position indicator of tearing or shearing the urine bag. With the inventive device, said segmenting of the urine bag is not an essential step.

In fig. 2: 311 is the pocket surface of the filling cavity, 321 is the filling material entity, and 322 is the cylindrical through hole provided in 311. Cylindrical through-hole 322, its whole speed that accelerates the imbibition more can promote the inside evenly distributed absorption liquid of filler.

In fig. 3: 61 is a sealing cover capable of being opened and closed repeatedly, 62 is an inner chamber for placing fillers, 63 is an outer chamber, 64 is the bottom surface of the inner chamber provided with holes, and 65 is a label attached to the outer side of the centrifuge container. After the urine sample is collected and tested, the whole process of the label and the container is unchanged, the centrifugal separation is helpful for simplifying the steps, and the situation that the label and the urine sample are misplaced can be avoided theoretically.

Detailed Description

The invention will be described in more detail below with reference to the accompanying drawings:

fig. 1 and 2 show a first embodiment of the invention, wherein the urine collecting device is composed of a urine bag body, a sheet-shaped antifouling filter layer and an integrated filler.

Referring to fig. 1, the urine bag body includes: a urine bag body 1, an adhesive patch 41, a urine bag opening 42 and a urine bag division position indication line 5; the upper and lower layers of the antifouling filter layer comprise: a first filter layer 21, a second filter layer 22; the separable one-piece filler 32 fills the filling cavity 31. The operation of dividing the urine bag is not a necessary application step.

Referring to fig. 2, the separable one-piece filler 32 includes: a filler body 321, a cylindrical through hole 322 provided at 311. The filler 32 is not fixedly attached to the filling cavity surface 311 and is separable therefrom.

The apparatus of the present embodiment is a medical device constructed from several materials having high flexibility and low bending strength. Wherein, the main material of the filter layer is one or more medical textile materials; the main material of the integrated filler is one or more medical sterile cotton.

In this embodiment, the urine bag body is not provided with the indicating line and the scale line, so that when the side surface of the urine bag body is only subjected to atmospheric pressure, and the upper liquid level of the stationary urine sample is flush with the lowest filtering layer, the completion of collection can be determined.

After the collection is completed, urine samples are separated according to different methods that can be adopted: a more convenient method can be selected, the syringe needle is directly inserted into the filler, and the liquid urine sample is sucked out for inspection; also, a method with low contamination risk can be selected, the urine bag is cut by the aid of the cutting indication lines or the easy-to-tear design, the urine bag is cut or torn, the integrated separable filler is taken out, and solid-liquid separation is carried out.

Referring to FIG. 3, a preferred method of solid-liquid separation is centrifugation, which requires a specialized centrifuge vessel. Figure 3 shows a centrifuge container for holding a sample of absorbent urine, characterized by: the inner space of the inner cavity is divided into an inner cavity and an outer cavity by a partition surface, filler is placed in the inner cavity, and a through hole is formed in the bottom surface of the inner cavity; the top of the inner chamber is a container opening of a centrifuge container, and the container opening is provided with a sealing cover capable of being opened and closed repeatedly. When the centrifugal machine rotates to work, the centrifugal force is larger than the adsorption force of the filler, and the separated urine sample enters the outer chamber through the through hole.

The above is only one embodiment of the present invention, and the description of the embodiment is intended to illustrate the idea of the present invention, and should not be construed as limiting the scope or meaning of the claims.

The scope of the invention is defined by the appended claims and equivalents thereof. All equivalent changes, which are made on the basis of the content of the patent application, shall be unconditionally within the scope of protection of the invention.

Claims

1. A urine sample collection apparatus for absorbing urine by capillary effect, comprising: the structure at least comprises a urine bag body, at least one sheet-shaped antifouling filter layer and a separable liquid absorption filler; the side surface of the urine bag body is provided with a unique opening which is a urine inlet, and an adhesive patch is arranged around the opening; the antifouling filter layer is not higher than the lowest point of the edge of the opening, the edge of the filter layer is in seamless joint with the inner side surface of the urine bag body, and a filling cavity of the liquid absorption filler is arranged below the filter layer; the liquid absorption filler is of an integrated structure and can be separated from the urine bag body, a porous (capillary hole, micropore, groove, micro-gap and the like) structure is arranged inside the filler, a capillary effect (also called capillary action) is generated to absorb the urine sample, the filler can absorb the urine sample which is not less than 15 times of the self weight of the filler in the environment with normal temperature and normal pressure and 50% relative humidity, and the phenomenon that the collected urine sample is prevented from losing again can be prevented.

2. The urine sample collection apparatus of claim 1, wherein: the sheet-shaped antifouling filter layer can be made of one or more materials of medical absorbent cotton, viscose fiber, polyester fiber, terylene and nylon by spinning; can also be made of non-woven fabric; the 3D printing material can also be selected to be made by 3D printing; the sheet-shaped antifouling filter layer is provided with tiny through holes with the aperture diameter distributed in the range of 20 nm-200 mu m, and the average value of the aperture diameter of the single filter layer is in the range of 1-100 mu m.

3. The urine sample collection apparatus of claim 1, wherein: the liquid absorption filler can be medical absorbent cotton, can also be a product formed by winding one or more of rayon, polyester fiber and terylene, and can also be flocking made of nylon material; the filling material of the above methods is finally shaped to match the geometrical characteristics of the filling cavity.

4. The urine sample collection apparatus of claim 1, wherein: the outer surface of the filling cavity of the urine bag body can be provided with an acquisition completion indicating line and a scale mark; on the urine bag body, can establish the design of shearing pilot line or easily tearing at the top position of filling the chamber to take out the filler after gathering.

5. A container for holding the contents of the urine sample collection device of claim 1, which can be placed in a centrifuge to separate the contents from the urine sample, wherein: the inner space of the device is divided into an upper chamber, a lower chamber or an inner chamber and an outer chamber by a partition surface, the upper chamber or the inner chamber is used for placing fillers, and the bottom surface of the partition surface is provided with a through hole; the top of the upper chamber or the inner chamber is a container opening of a centrifuge container, and the container opening is provided with a sealing cover or a sealing plug which can be opened and closed repeatedly; when the centrifugal machine rotates, the centrifugal force borne by the urine sample is larger than the adsorption force of the filler, and the urine sample is separated from the filler and finally enters the lower chamber or the outer chamber through the through hole.