WO2017063488A1

WO2017063488A1 - Portable disposable sealed body fluid retention device

Info

Publication number: WO2017063488A1
Application number: PCT/CN2016/099680
Authority: WO
Inventors: 单希杰
Original assignee: 无锡市凯顺医疗器械制造有限公司
Priority date: 2015-04-02
Filing date: 2016-09-22
Publication date: 2017-04-20
Also published as: CN106053148B; CN106053148A

Abstract

The present invention relates to the field of medical devices, particularly to a collection device for collecting urine and other liquids in a laboratory and a pathological analysis center, and specifically to a portable disposable sealed body fluid retention device. The portable disposable sealed body fluid retention device comprises a test tube assembly (A) and a liquid guide device (B).When the lower part of the liquid guide device (B) is fixed to the test tube assembly (A), the smallest sectional area of a guide channel of the liquid guide device (B) and the smallest sectional area of an air discharging channel are all greater than or equal to 3 mm² and smaller than or equal to 20 mm². A test tube plug (2) comprises a connecting body (2a) connected and fixed to the opening end of the test tube and comprises a sealing film (2b) for preventing a liquid in a tube chamber from flowing out. The connecting body (2a) and the sealing film (2b) are integrated as one body. When the liquid guide device B is fixed to or detached from the tube assembly (A), the sealing film (2b) prevents the liquid in the tube chamber from easily flowing out. The portable disposable sealed body fluid retention device has the advantages: the retention device can inject a liquid into a test tube without splash and leakage, enables injected urine in the test tube to be unlikely to sprinkle out, has a simple design and structure and is convenient to produce.

Description

Portable one-time closed body fluid indweller

Technical field

The invention relates to a medical device, in particular to a collection device for collecting urine and the like in a laboratory and a hospital pathological analysis center, in particular to a disposable sealed body fluid indweller.

Background technique

The urine analysis results provide information for determining the disease of the visceral tube in advance and for determining the current health condition of the subject, and the like. Therefore, various hospitals and test centers routinely perform urine tests on a large number of new patients, medical examiners, inpatients, and other those in need.

In general, the test subject needs to go to the bathroom to collect the urine sample in a paper cup, and then put the paper cup on a designated shelf in the laboratory or pour the urine into the designated test tube. After the urine sample is collected in the laboratory or elsewhere, the urine sample is sent to another laboratory for urinalysis.

Traditional analytical methods for urine sample collection have many drawbacks. For example, it is difficult for some of the test subjects to discharge the urine into the urine cup. He or she often gets the urine on the hands or clothes. This collection method has health defects. In addition, since the paper cup is easily knocked off when the test paper is wetted and the urine is easily spilled from the paper cup during the process of feeding the paper cup to the designated place, the test subject needs to be very careful in handling the urine sample.

In many cases, a large number of urine samples need to be tested in one day, and these ones occupy a considerable area with a wide-mouthed paper cup so that they need to be stored in a large area until the test. And when they are sent to the laboratory, there is still the possibility of loss of urine in the paper cup due to accidental dropping or tilting. So this situation will not only soil the environment, but may also cause some urine samples to no longer be used in the test. In addition, many of the urine samples collected by the testees are much more than they are needed. Therefore, when a large number of test subjects' urine samples are put together, they emit a pungent smell, which greatly destroys and reduces doctors, nurses, and others. The efficiency of the person who performed the urine sample analysis.

However, the structure of the prior art is complicated, the liquid collection takes a long time, the liquid collection step is cumbersome, and there is still a phenomenon of urine leakage. For example, Chinese Patent No. 201120203292.0 uses four components: a urine cup, a switch socket, a test tube, and a connecting tube. In the process of collecting liquid, six steps are required: assembly, rotating the switch holder for the first time, making the urine cup and the test tube unreachable. Then, collect urine, turn the switch seat again to make urine flow into the test tube, and then enter the test tube 4, turn the switch seat again to close the test tube, and separate the urine cup. The operation of turning the switch 3 times is very complicated; The average value, the patent 201120203292.0 patent collection urine time is 31s, and there is scattered leak.

Therefore, how to put the collected urine sample into a designated container quickly and safely without spilling, and the design structure is simple, the processing is simple, the process is small, and the easy-to-operate product has become an urgent technical problem to be solved in the industry.

Summary of the invention

One of the objects of the present invention is to disclose a method for injecting a urine sample into a designated test tube quickly, conveniently, safely and without leakage. The outer wall of the test tube is not easily contacted with urine and is not easily contaminated by urine, and the liquid is guided during the process of instilling urine. The urine that is smoothly and infused in the test tube is not easy to flow out when the excess urine is poured out, and the design structure is simple, the processing is convenient, the operation is convenient and hygienic, the cross-contamination is avoided, and the disposable closed body fluid indwelling device conforms to the laboratory biosafety requirements.

The object of the invention is achieved in this way:

A portable disposable closed body fluid indweller comprising a tube assembly and a liquid flow guiding device. The tube assembly includes a test tube and a tube stopper disposed at an open end of the tube. The liquid guiding device is provided with a diversion channel and an exhaust channel which are not connected to each other; one end of the diversion channel is a liquid inlet, and the other end is a liquid outlet; one end of the exhaust channel is an exhaust port, and the other end is An outlet port; the outlet port and the exhaust port are located at a lower portion of the liquid guiding device; when the lower portion of the liquid guiding device is fixedly coupled with the tube assembly, liquid can pass through the diversion channel smoothly Flow into the lumen of the tube. Wherein, the minimum cross-sectional area of the diversion channel is greater than or equal to 3 mm ^{2 and} less than or equal to 20 mm ² ; the minimum cross-sectional area of the exhaust passage is greater than or equal to 3 mm ^{2 and} less than or equal to 20 mm ² . The test tube plug includes a connecting body fixedly connected to the open end of the test tube and a sealing film blocking the outflow of the liquid in the tube cavity, and the connecting body and the sealing film are integrated. When the liquid flow guiding device is fixed or separated from the test tube assembly, the plugging film is deformed. When the liquid flow guiding device is fixed or separated from the test tube assembly, the liquid in the lumen is not easily discharged from the lumen.

Preferably, the minimum cross-sectional area of the flow guiding channel is greater than or equal to 3 mm ^{2 and} less than or equal to 15 mm ² ; and the minimum cross-sectional area of the exhaust passage is greater than or equal to 3 mm ^{2 and} less than or equal to 15 mm ² . When the flow passage sectional area at a minimum less than or equal to 3mm ² 15mm ^2; minimum cross-sectional area of the exhaust passage at less than or equal to 3mm ² when 15mm ^2, can effectively reduce the liquid flow outlet port means The liquid flowing into the lumen of the test tube blocks the exhaust port of the liquid guiding device, causing a poor liquid flow in the liquid liquid guiding device; and at the same time, reducing the liquid guiding caused by intermittent liquid sampling The flow device is not well-conducted; during the process of pouring excess liquid in the liquid flow guiding device, a liquid film is formed at the liquid outlet and the exhaust port, thereby reducing liquid in the test tube The probability that a liquid or exhaust port will flow out. Wherein, when the cross-sectional area of the flow guiding channel is not more than 10 mm ² at least, it is preferable that the cross-sectional area of the exhausting passage is not smaller than the minimum cross-sectional area of the guiding channel.

Further, when the minimum cross-sectional area of the flow guiding channel is greater than 10 mm 2 , preferably, when the minimum cross-sectional area of the exhaust channel is not less than 25% of the minimum cross-sectional area of the guiding channel, the portable disposable body fluid indweller is guided. The liquid process is smooth and fast.

Wherein the liquid guiding device can have the following structure:

The liquid guiding device is provided with a shielding body:

The liquid guiding device is provided with a shielding body for changing a movement track of the liquid outside the guiding channel during the guiding process for preventing liquid from splashing on the outer wall of the test tube. The shielding body and the liquid guiding device may be integrally formed or may be separately fixed and fixed. The obscuration body is located at the periphery of the test tube. The obscuring body may be that the obstructing body is located at a periphery of the test tube. The shielding body may be located at an upper portion, a middle portion, a lower portion, a periphery, an upper portion, and a periphery of the liquid flow guiding device, a middle portion, and a periphery or a lower portion and a periphery. The liquid flow guiding device is further provided with a handle, and the handle is provided with a protective side wall for preventing liquid from splashing on the handle. Wherein, the minimum cross-sectional area of the exhaust passage is not less than 25% of the minimum cross-sectional area of the flow guiding passage.

The obscuring body includes a shielding sidewall, and the shielding sidewall surrounds the tube by 360° or less.

When the shielding sidewall surrounds the test tube 360°, an opening for scanning and scanning may be provided on the shielding sidewall; or the shielding sidewall may be prepared by using a transparent material, and the transparent material may not be used for observation. , the opening for scanning.

Further, the shielding body includes a movable portion A and a fixed portion A, and the movable portion A is movably connected to the fixed portion A; the fixed portion A is fixedly connected or integrally formed with a lower portion of the liquid flow guiding device.

Further, the movable part A is sleeved with the fixed part, and the movable part A can be opposite to the self under the action of gravity when the axial position of the liquid flow guiding device is changed to a certain angle The fixed part is free to slide in the axial direction. An axial contraction groove may also be provided on the side wall of the movable portion A.

The occlusion body includes a movable portion B and a fixed portion B. The movable portion B is rotatable relative to the fixed portion B. The cross-section of the movable portion B and the fixed portion B are both arc-shaped, and the fixed portion B Attached to the lower portion of the liquid flow guiding device. The movable part B rotates relative to the fixed part B, wherein there may be a partial overlap between the movable part B and the fixed part B, and the movable part B and the fixed part B are enclosed and 360° around the test tube.

The liquid guiding device is provided with a partition structure:

Further, the liquid guiding device is provided with a partition structure separating an exhaust port of the exhaust passage and a liquid outlet of the flow guiding passage, and the exhaust port and the liquid outlet are located at the The lower part of the liquid guiding device. The partition structure is for increasing the distance of liquid from the liquid outlet to the exhaust port during the diversion process. cut back The liquid at the liquid outlet enters the exhaust port, causing the exhaust port to become clogged, resulting in poor liquid guiding process. The liquid outlet is the final outlet of the liquid from the liquid flow guiding device into the test tube, and the exhaust port is the initial outlet of the gas in the test tube from the liquid guiding device.

Wherein, the separation structure can be:

The partition structure is a partition body; the partition body is formed by an outward extension of a joint portion for partitioning the exhaust passage and the flow guiding passage. Extending outwardly of the connecting portion means extending in the direction of fluid flow of the flow guiding device.

The partitioning structure is provided with an inward recessed nail on the connecting portion between the exhaust port and the liquid outlet for separating the exhaust passage and the flow guiding passage.

The partition structure has a height difference between the exhaust port and the liquid outlet. The exhaust port and the liquid outlet are not on the same surface, and the exhaust port is higher than the liquid outlet.

The test tube can have the following structure:

A convex rib is disposed on an outer surface of the annular side wall of the test tube. The function of the rib is that the outer side of the liquid storage tube can be matched with the inner side wall of the larger test tube rack and is not easy to shake when the inner diameter of the test tube storage chamber is small, because the inner diameter of the test tube chamber is small, when the test tube flows into a small amount of liquid, Will reach a higher liquid level, to achieve the height required for testing, is conducive to the use of patients with less urine. At the same time, it can reduce the amount of raw materials and significantly reduce costs.

The test tube plug can have the following structure:

1. When the upper surface of the movable portion is provided with an axial recess (that is, when the upper surface is a concave curved surface or a slope):

The sealing film of the test tube plug is provided with a fixing portion and a movable portion, the fixing portion is connected to the connecting body, and the movable portion is formed by extending the fixing portion, and the movable portion can be fixed relative to the fixed portion The movable portion has an upper surface, a lower surface, and a side surface connecting the upper surface and the lower surface, and an axial recess is provided above the upper surface of the movable portion.

The recess may be enclosed only by the upper surface of the movable portion; or may be enclosed by the upper surface of the movable portion and the passage wall of the passage, wherein the passage is located at the movable portion Above the upper surface, the channel is axial. The channel may be columnar, tapered or profiled. The passage is fixed for connection with the liquid flow guiding device to reduce the cooperative shaking of the test tube assembly and the liquid flow guiding device; when the liquid flow guiding device is separated from the test tube assembly, the liquid guide is reduced The liquid at the connection between the flow device and the test tube assembly is sprinkled outside the test tube assembly; during the process of pulling out the test strip, the carried liquid is spilled outside the test tube assembly; The passage is used for guiding during the attachment of the liquid flow guiding device.

The upper surface may be a curved surface, a sloped surface or a flat surface.

Wherein, the number of the movable parts of the plugging film may be 1, 2, 3, 4, and the like.

When the movable portion is one, the movable portion is located at a lower portion of the test tube plug. The side of the movable portion may be in contact with the inner side wall of the test tube plug, or the upper surface of the movable portion may be in contact with the bottom end surface of the test tube. Further, the fixing portion is further provided with a reset structure. The reset structure is a C-type connection between the movable portion and the fixed portion. For example, the thickness of the plugging film near the fixing portion may be increased. In this case, the side surface of the movable portion may be in contact with the inner side wall of the test tube plug, or the upper surface of the movable portion may be in contact with the lower end surface of the test tube plug.

Further, when the movable portion is two or more, the movable portions are movable independently of each other, and a through tangent is provided between the movable portion and the movable portion; The side of the movable portion is formed by the collision, and the tangent line may be in a shape of a line, a cross, a T shape, a Y shape, or the like.

Further, a gap is formed between the side faces of the movable portion, and the gap forms an axial through hole. The gap between the side faces of the movable portion may be formed in a cross shape, a Y shape, an X shape, a shape of a letter, or an irregular shape, and the shape of the gap depends on the number of the movable portions.

Further, the gap is narrowed from top to bottom, that is, the gap is narrowed from the upper surface to the lower surface. Preferably, the gap on the lower surface is greater than 0.05 mm and less than 0.3 mm, and the gap on the upper surface is greater than 0.3 mm and less than or equal to 1.5 mm. That is, the longitudinal cross-sectional shape of the gap between the adjacent two movable portions may be V-shaped or inverted trapezoidal.

2. When there is no axial depression above the upper surface of the movable portion (that is, when the upper surface is flat):

Further, the plugging film is provided with a fixing portion and a movable portion, the fixing portion is connected to the connecting body, the movable portion is formed by the fixing portion, and the movable portion is movable relative to the fixing portion The movable portion has an upper surface, a lower surface, and a side surface connecting the upper surface and the lower surface, and a gap is formed between the side surfaces of the movable portion, the gap forming an axial through hole, the gap Narrowing from the upper surface to the lower surface. The tangent may be a cross, a Y, an X, a shape, or an irregular shape. Further, a passage may be provided above the upper surface of the plugging film.

3. When the upper surface or the lower surface of the plugging film is not damaged:

The plugging film is provided with at least two thicknesses, the first thickness is smaller than the second thickness, and the vulnerable portion is the first thickness. Preferably, the first thickness is 0.03 mm or more and 0.15 mm or less.

Further, when the tube assembly and the liquid guiding device are not fixedly fixed, at least one of the upper surface or the lower surface of the sealing film is intact. Wherein, the upper surface of the plugging film is a curved surface that is recessed downward, The slope or plane, and the minimum cross-sectional area of the exhaust passage is not less than 25% of the minimum cross-sectional area of the flow passage.

For example, when the upper surface of the plugging film is intact, the lower surface of the plugging film is provided with a groove, and the distance from the bottom surface of the groove to the upper surface is a first thickness.

For example, when the lower surface of the plugging film is intact, the upper surface of the plugging film is provided with a groove, and the distance from the bottom surface of the groove to the lower surface is a first thickness.

The sealing film may be provided with a tangent line that does not penetrate the lower surface, the upper surface is a curved surface or a sloped surface that is recessed downward, and the minimum cross-sectional area of the exhaust passage is not lower than the minimum cross-sectional area of the flow guiding channel. 25%.

The non-destructive means that no tangential line, no opening, no groove, and no other damage are formed on the upper surface or the lower surface.

The vulnerable portion refers to: when the lower portion of the liquid guiding device is fixed with the test tube assembly, the lower portion of the liquid guiding device penetrates the sealing film of the test tube plug to cause damage of the sealing film to form an axial through hole. So that the liquid can flow smoothly into the test tube. The damaged portion of the plugging film is the vulnerable portion.

The test tube plug is made of an elastic material such as silica gel, rubber, TPU, TPE or the like. The plug has a closed state and an open state. When the test tube plug is in the closed state, the movable portion of the plugging membrane is in a natural state without being subjected to an external force. When the test tube plug is in the open state, the movable portion of the plugging membrane is subjected to an external force, and the movable portion is deployed to the periphery to form an axial passage for the perfusion device, the sample to be inserted or removed, or the liquid to flow into the test tube.

a) In combination with the various types of the above-mentioned test tube plugs, the portable disposable sealed body fluid indweller is further provided with the following structure: Further, the outer surface of the annular side wall of the test tube is provided with a rib.

b) combining the above types of test tube plugs, and the outer surface of the annular side wall of the test tube is provided with a rib, and the portable one-time closed body fluid retainer further has the following structure:

Further, a lower portion of the liquid flow guiding device is provided with a shielding body for changing a movement track of the liquid outside the guiding channel during the guiding process; the shielding body includes a shielding sidewall, The shielding sidewall surrounds the tube by 360° or less.

Further, when the shielding sidewall surrounds the test tube 360°, the shielding sidewall is provided with an opening for scanning and scanning. Or the opening for scanning and scanning is not provided on the shielding sidewall, and is prepared by using a transparent material.

Further, the occlusion body includes a movable portion A and a fixed portion A, and the movable portion A and the fixed portion The sleeve is slidable, and the movable portion A is slidable in the axial direction relative to the fixed portion A when the axial position of the liquid guiding device is changed by the self-gravity; the fixed portion A and the liquid guiding device are The lower part is fixedly connected or integrally formed, and the side wall of the movable part is provided with an axial shrink groove.

Further, the liquid guiding device is provided with a partition structure separating an exhaust port of the exhaust passage and a liquid outlet of the flow guiding passage, and the exhaust port and the liquid outlet are located at the a lower part of the liquid guiding device, wherein the partitioning structure is used for increasing the distance of the liquid from the liquid outlet to the exhaust port during the diversion process, and reducing the liquid entering the exhaust port of the liquid outlet to affect the smoothness of the liquid guiding The partitioning structure is a partitioning body; the partitioning body is formed by outwardly extending a connecting portion A for partitioning the exhaust passage and the flow guiding passage.

A convenient one-time closed body fluid indweller with the following structures, such as

A portable disposable fluid body indwelling device comprising a test tube assembly and a liquid flow guiding device; the test tube assembly comprising a test tube and a test tube plug disposed at an open end of the test tube, the liquid flow guiding devices being mutually non-communicable The guiding channel and the exhaust channel; when the lower portion of the liquid guiding device is fixedly coupled with the tube assembly, liquid can smoothly flow into the lumen of the tube through the guiding channel; the cross-sectional area of the guiding channel is the smallest Where the greater than or equal to 3 mm ^{2 is} less than or equal to 20 mm ² ; the minimum cross-sectional area of the exhaust passage is greater than or equal to 3 mm ^{2 and} less than or equal to 20 mm ² ; the test tube plug is provided with a plugging membrane and an axial passageway above the plugging membrane; The liquid guiding device is fixedly coupled to the tube assembly, and a lower portion of the liquid guiding device is disposed in the passage, and a liquid outlet of the liquid guiding device is located above the upper surface of the sealing film. The lower end of the liquid guiding device may be in contact with the upper surface or not contacting the upper surface of the sealing film; the sealing film is not deformed or deformed sufficiently, so that the liquid cannot flow smoothly through the channel A from the liquid outlet of the liquid guiding device to Tube lumen. The axial channel A formed by the deformation of the sealing film, the channel A is the channel connecting the guiding channel and the lumen.

2. A portable disposable closed body fluid indweller comprising: a test tube assembly and a liquid flow guiding device; the test tube assembly comprising a test tube and a test tube plug disposed at an open end of the test tube; the liquid flow guiding device being non-connected The guiding channel and the exhaust channel; when the lower portion of the liquid guiding device is fixedly coupled with the tube assembly, liquid can smoothly flow into the lumen of the tube through the guiding channel; the cross-sectional area of the guiding channel is the smallest Where is greater than or equal to 3 mm ^{2 and} less than or equal to 20 mm ² ; the minimum cross-sectional area of the exhaust passage is greater than or equal to 3 mm ^{2 and} less than or equal to 20 mm ² ; the test tube plug is provided with a plugging membrane and an axial passageway at the side of the plugging membrane; When the disposable sealed body fluid indweller is in the first state, the tube assembly is separated from the liquid guiding device; and when the portable disposable body fluid indweller is in the second state, the liquid guiding device is The test tube assembly is fixedly fixed, and the lower portion of the liquid flow guiding device presses against the upper surface of the sealing film to deform the sealing film to form a channel A, and the liquid outlet of the liquid guiding device and the test The tube lumen is connected.

A portable one-time closed body fluid indweller comprising a test tube assembly and a liquid flow guiding device; the test tube assembly comprising a test tube and a test tube plug disposed at an open end of the test tube; the liquid flow guiding devices are not in communication with each other The guiding channel and the exhaust channel; when the lower portion of the liquid guiding device is fixedly coupled with the tube assembly, liquid can smoothly flow into the lumen of the tube through the guiding channel; the cross-sectional area of the guiding channel is the smallest Where the greater than or equal to 3 mm ^{2 is} less than or equal to 20 mm ² ; the minimum cross-sectional area of the exhaust passage is greater than or equal to 3 mm ^{2 and} less than or equal to 20 mm ² ; the test tube plug is provided with a plugging membrane and an axial passageway above the plugging membrane; The liquid guiding device is fixedly coupled with the tube assembly, and a lower portion of the liquid guiding device presses against an upper surface of the sealing film to deform the sealing film to form a channel A, and the liquid guiding channel The liquid outlet is connected to the tube lumen.

The invention has the following main advantages:

1. The body fluid indweller of the invention has the function of injecting a urine sample into a designated test tube quickly, conveniently and safely without splashing. In the process, the outer wall of the test tube is not easily contacted with urine, is not easily contaminated by urine, and is infused with urine. During the process, the liquid guiding is smooth and the urine poured in the test tube is not easy to flow out when the inclined liquid guiding device dumps excess urine and after separating the liquid guiding device, the design structure is simple, the processing is convenient, the operation is convenient and hygienic, and cross-contamination is avoided. A disposable sealed body fluid indwelling device that meets laboratory biosafety requirements.

2. The test tube assembly of the present invention, wherein the upper surface of the movable portion of the test tube plug is provided with an axial recess to guide the insertion of the detecting device (such as a test strip, etc.), and the user does not need to align the test tube plug. For the through hole, it is only necessary to align the end of the detecting device with the recess to achieve convenient insertion.

3. The depression of the test tube plug of the present invention reduces the resistance of the detection device when inserted, making the detection device easier to insert from the test tube plug.

4. Since there is a depression formed by the upper surface of the movable portion, when the detecting device is taken out from the through hole of the test tube plug, it is difficult to bring the liquid in the test tube out of the outer tube assembly; when the recess is made by the inner side wall of the body of the passage and When the upper surface of the movable portion is formed, since the passage has a certain height, the detection device can be more effectively prevented from taking out the liquid in the test tube to the outside of the test tube assembly when being taken out from the through hole of the test tube plug, thereby reducing pollution.

5. When the test tube is filled with liquid, when the test tube is tilted, the liquid squeezes the movable portion of the test tube plug, and the depression of the test tube plug can effectively prevent the movable portion from being deformed, thereby achieving liquid sealing.

6. In the application process, the test tube assembly and the liquid flow guiding device are fixed and fixed for a long time, when in the test tube The liquid guiding device is removed after the liquid is poured. The prior art test tube plug is difficult to recover due to long-term deformation, and the test tube plug of the present invention can be used for the test tube plug due to the circular arc and the easy recovery structure provided by the recess. The active part is restored in time to achieve the sealing of the liquid.

7. When the lower part of the liquid guiding device is matched with the test tube plug, the protrusion on the test tube plug cooperates with the groove on the lower part of the liquid guiding device to have a better sealing effect; on the other hand, the liquid guiding device and the test tube plug When the mating is performed, the protrusion on the test tube plug is disposed in the groove of the lower portion of the liquid flow guiding device, and can cooperate to perform positioning, and can also increase the firmness of the fitting.

8. Due to the depression of the test tube plug, the outer side wall of the lower part of the liquid guiding device can be conveniently and fixedly matched with the inner side wall of the test tube channel, and the structure is stable and not easy to fall off.

DRAWINGS

Figure 1 is a schematic view of a test tube plug-1 of the present invention.

Figure 2 is a schematic view of a test tube plug-2 of the present invention.

Figure 3 is a schematic view of a test tube assembly-1 of the present invention.

Figure 4 is a schematic view of a test tube-1 of the present invention.

Figure 5 is a schematic view - 1 of a liquid flow guiding device of the present invention.

Figure 6 is a schematic view - 2 of the liquid flow guiding device of the present invention.

Figure 7 is a schematic view - 1 of a disposable sealed body fluid indweller of the present invention.

Figure 8 is a schematic view-2 of the disposable sealed body fluid indweller of the present invention.

Figure 9 is a schematic view-3 of a disposable sealed body fluid indweller of the present invention.

Figure 10 is a schematic view of a test tube plug-3 of the present invention.

Figure 11 is a schematic view of a test tube assembly-2 of the present invention.

Figure 12 is a schematic view of a test tube plug-4 of the present invention.

Figure 13 is a schematic view of a test tube assembly-3 of the present invention.

Figure 14 is a schematic view of a disposable sealed body fluid indweller-4 of the present invention.

Figure 15 is a schematic view of a test tube-2 of the present invention.

Figure 16 is a schematic view of a test tube plug-5 of the present invention.

Figure 17 is a schematic view of a test tube assembly-4 of the present invention.

Figure 18 is a schematic view - 3 of the liquid flow guiding device of the present invention.

Figure 19 is a schematic view-5 of a disposable sealed body fluid indweller of the present invention.

Figure 20 is a schematic view of a test tube plug-5 of the present invention.

Figure 21 is a schematic view of a test tube assembly-5 of the present invention.

Figure 22 is a schematic view of a liquid flow guiding device of the present invention-4.

Figure 23 is a schematic view of a test tube plug-6 of the present invention.

In the picture:

A test tube assembly

1 test tube, 11 ribs, 12 open ends, 13 lumens, 14 annular side walls

2 test tube plug, 2a connector, 2b plugging membrane, 2c channel, 2d axial recess, 2e tube plug inner side wall, 2f reset structure, 2g joint, 2h tube bottom end, 2c-1 channel wall,

21 fixed parts, 22 active parts, 23 gaps, 23-1 pitch A, 23-2 spacing B,

D1 first thickness, D2 second thickness,

221 upper surface, 222 lower surface, 223 side, 225 tangential, 226 groove, 227 groove bottom,

B liquid guiding device, the lower part of the B-1 liquid guiding device,

3 diversion channel, 31 inlet port, 32 outlet port

4 exhaust passage, 41 exhaust port, 42 air outlet,

5 joints, 51 partitions, 52 depressions

6 ring side armor, 61 handles, 62 protective side walls

7 occlusion body, 71 fixed part A, 72 movable part A, 73 shrink groove, 74-1 anti-shedding structure A, 74-2 anti-shedding structure B, 75 anti-sway structure, 7-1 blocking side wall, 76 opening,

8 channels A.

detailed description

The present invention will be further described with reference to the accompanying drawings in which FIG. 1 to FIG. 23, which are merely preferred examples, and are not intended to limit the scope of the present invention. Instead, the purpose is to cover various changes and equivalents. Arranged in the scope of the patent to which the present invention is intended.

Example 1

As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 8, Figure 22

A convenient disposable closed body fluid indweller comprising a test tube assembly A and a liquid flow guiding device B.

The test tube assembly A includes a test tube 1 and a test tube plug 2 disposed at the open end 12.

The test tube 1 is provided with an open end 12 for cooperating with the test tube stopper 2 and the liquid flow guiding device B; and a lumen 13 for storing a liquid, and the outer side surface of the annular side wall 14 of the test tube 1 is provided with a rib 11.

The test tube plug 2 includes a connecting body 2a that is fixedly connected to the open end 12 of the test tube 1, and a sealing film 2b that blocks the outflow of the liquid in the lumen 13. The connecting body 2a and the sealing film 2b are integrated. The sealing film 2b is provided with a fixing portion 21 and four movable portions 22, and the fixing portion 21 is connected to the connecting body 2a. The movable portion 22 is formed to extend from the fixing portion 21 to the axis, and the movable portion 22 is movable relative to the fixed portion 21. The movable portion 22 has an upper surface 221, a lower surface 222, and a side surface 223 that connects the upper surface 221 and the lower surface 222. A gap 23 is provided between the side faces 223 of the adjacent movable portions 22. The distance between the upper surfaces 221 of the adjacent two movable portions 22 is the pitch A2-31, and the pitch A2-3-1 is 0.3 mm; the distance between the gaps 23 at the adjacent lower surface 222 is the spacing B-2, and the spacing B-2 is 2-2. It is 0.1mm. The longitudinal section of the gap 23 is an inverted trapezoid. An axial recess 2d and a columnar passage 2c are provided above the upper surface 221 of the movable portion 22. The recess 2d is formed by enclosing the upper surface 221 of the four movable portions 22 and the passage wall 2c-1 of the passage 2c. The test tube plug 2 is made of an elastic material.

The liquid guiding device B is provided with a flow guiding passage 3 and an exhaust passage 4 which are not in communication with each other; and a connecting portion 5 for separating the exhaust passage 3 and the guiding passage 4. The upper end of the flow guiding channel 3 is a liquid inlet port 31, the lower end of the air guiding channel 3 is a liquid outlet 32; the lower end of the exhaust channel 4 is an exhaust port 41, and the upper end of the exhaust channel 4 is an air outlet 42; 32 and the exhaust port 41 are located in the lower portion B-1 of the liquid flow guiding device.

The connecting portion 5 extends downward to form a partitioning body 51, and the lowest point of the partitioning body 51 is located below the liquid outlet 32 and the exhaust port 41. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 12 mm ² ; the minimum cross-sectional area of the exhaust channel is 8 mm ² . Or as shown in FIG. 22, the connecting portion A 5 is opened upwardly to the inward recessed nail 52. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 12 mm ² ; the minimum cross-sectional area of the exhaust channel is 8 mm ² .

The lower portion and the periphery of the liquid flow guiding device are provided with a 360° annular shielding body 7 , and the annular shielding body 7 is connected with the annular side wall 6 of the liquid guiding device B, and the annular shielding body 7 and the liquid guiding device B As one. An annular shield 7 on the opposite side of the handle 61 is provided with an opening 76 therein.

When the lower portion B-1 of the liquid guiding device is fixedly coupled with the test tube assembly A, the lower portion B-1 of the liquid guiding device pushes the four movable portions 22 of the sealing film 2b downward and outward, and the liquid passes through the guiding channel. 3 smoothly flows into the lumen 13 of the test tube 1. When the disposable body fluid indwelling device is tilted, the liquid in the lumen 13 forms a liquid film at the liquid outlet 32 and the exhaust port 41, effectively preventing the outflow of the liquid in the lumen 13.

After the liquid flow guiding device B is separated from the test tube assembly A, the four movable portions 22 of the plugging film 2b are gathered upward and in the axial direction. When the test tube assembly A is tilted, the liquid in the lumen 13 forms a liquid film at the gap 23, The distance between the adjacent lower surfaces 222, B2-2, is smaller than the distance between the adjacent upper surfaces 221, A-23, so that the liquid in the lumen rapidly forms a liquid film when contacting the surface 222, effectively preventing The liquid in the lumen 13 flows out.

A convenient disposable closed body fluid indweller can also be shown in Figure 7, the rest is the same as above, the test tube 1 is shown in Figure 15, with an open end 12 for mating with the test tube plug 2 and the liquid flow guiding device B; A lumen 13 for storing a liquid.

Example 2

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 9, and Fig. 15,

The test tube assembly A includes a test tube 1 and a test tube plug 2 disposed at the open end of the test tube.

The test tube 1 is provided with an open end 12 for cooperating with the test tube stopper 2 and the liquid flow guiding device B; and a lumen 13 for storing a liquid.

The test tube plug 2 includes a connecting body 2a that is fixedly connected to the open end 12 of the test tube 1, and a sealing film 2b that blocks the outflow of the liquid in the lumen 13. The connecting body 2a and the sealing film 2b are integrated. The sealing film 2b is provided with a fixing portion 21 and four movable portions 22, and the fixing portion 21 is connected to the connecting body 2a. The movable portion 22 is formed to extend from the fixing portion 21 to the axis, and the movable portion 22 is movable relative to the fixed portion 21. The movable portion 22 has an upper surface 221, a lower surface 222, and a side surface 223 that connects the upper surface 221 and the lower surface 222. A gap 23 is provided between the side faces 223 of the adjacent movable portions 22. The distance between the upper surfaces 221 of the adjacent two movable portions 22 is the pitch A2-31, and the pitch A2-3-1 is 0.25 mm; the distance between the gaps 23 at the adjacent lower surface 222 is the spacing B-2, and the spacing B-2 is 2-2. It is 0.15mm. The longitudinal section of the gap 23 is an inverted trapezoid. An axial recess 2d and a columnar passage 2c are provided above the upper surface 221 of the movable portion 22. The recess 2d is formed by enclosing the upper surface 221 of the four movable portions 22 and the passage wall 2c-1 of the passage 2c. The test tube plug 2 is made of an elastic material.

The liquid guiding device B is provided with a flow guiding passage 3 and an exhaust passage 4 which are not in communication with each other; and a connecting portion 5 for separating the exhaust passage 3 and the guiding passage 4. The upper end of the flow guiding channel 3 is a liquid inlet port 31, the lower end of the air guiding channel 3 is a liquid outlet 32; the lower end of the exhaust channel 4 is an exhaust port 41, and the upper end of the exhaust channel 4 is an air outlet 42; 32 and the exhaust port 41 are located in the lower portion B-1 of the liquid flow guiding device. The connecting portion 5 extends downward to form a partitioning body 51, and the lowest point of the partitioning body 51 is located below the liquid outlet 32 and the exhaust port 41. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 11 mm ² ; the minimum cross-sectional area of the exhaust channel is 9 mm ² .

An annular shielding body 7 is provided at a lower portion and a periphery of the liquid guiding device. The annular shielding body 7 includes a fixed portion 71 fixed to the annular side wall 6 of the liquid flow guiding device B, and a movable portion A 72 that is sleeved with the fixed portion 71. The side wall of the movable portion 72 is provided. An axial shrink groove 73 that penetrates the thickness of the side wall. The lower part of the fixed part 71 is provided with an anti-shedding structure B 74-2, the upper part of the movable part A 72 is provided with an anti-shedding structure A 74-1, and the anti-shedding structure B 74-2 is matched with the anti-shedding structure A 74-1 to avoid The movable portion A 72 is separated from the fixed portion A 71. The upper outer side wall of the movable portion A 72 is further provided with a sway prevention structure 75 for preventing the movable portion A 72 from shaking. Among them, the shrink groove 73 is used to observe the action of the test tube on the one hand, and the movable portion 72 is sleeved in the fixed portion 71 on the other hand.

After the liquid flow guiding device B is separated from the test tube assembly A, the four movable portions 22 of the plugging film 2b are gathered upward and in the axial direction. When the test tube assembly A is tilted, the liquid in the lumen 13 forms a liquid film at the gap 23, since the distance between the adjacent lower surfaces 222 is lower than the distance between the adjacent upper surfaces 221, A 23 - 1. The liquid in the lumen rapidly forms a liquid film when contacting the surface 222, effectively preventing the outflow of the liquid in the lumen 13.

Example 3

As shown in Figure 5, Figure 7, Figure 10, Figure 11, and Figure 15.

The test tube plug 2 includes a connecting body 2a that is fixedly connected to the open end 12 of the test tube 1, and a sealing film 2b that blocks the outflow of the liquid in the lumen 13. The connecting body 2a and the sealing film 2b are integrated. The sealing film 2b is provided with a fixing portion 21 and four movable portions 22, and the fixing portion 21 is connected to the connecting body 2a. The movable portion 22 is formed to extend from the fixing portion 21 to the axis, and the movable portion 22 is movable relative to the fixed portion 21. The movable portion 22 has an upper surface 221, a lower surface 222, and a side surface 223 that connects the upper surface 221 and the lower surface 222. The side faces 223 of the adjacent movable portions 22 abut against the tangent line 225. An axial recess 2d and a truncated-shaped passage 2c are provided above the upper surface 221 of the movable portion 22. The recess 2d is formed by enclosing the upper surface 221 of the four movable portions 22 and the passage wall 2c-1 of the passage 2c. Test tube stopper 2 made of elastic material preparation.

The liquid guiding device B is provided with a flow guiding passage 3 and an exhaust passage 4 which are not in communication with each other; and a connecting portion 5 for separating the exhaust passage 3 and the guiding passage 4. The upper end of the flow guiding channel 3 is a liquid inlet port 31, the lower end of the air guiding channel 3 is a liquid outlet 32; the lower end of the exhaust channel 4 is an exhaust port 41, and the upper end of the exhaust channel 4 is an air outlet 42; 32 and the exhaust port 41 are located in the lower portion B-1 of the liquid flow guiding device. The connecting portion 5 extends downward to form a partitioning body 51, and the lowest point of the partitioning body 51 is located below the liquid outlet 32 and the exhaust port 41. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 8 mm ² ; the minimum cross-sectional area of the exhaust channel is 8.5 mm ² .

After the liquid flow guiding device B is separated from the test tube assembly A, the four movable portions 22 of the sealing film 2b are folded upward and in the axial direction, and the side faces 223 of the adjacent movable portions 22 are again abutted. When the test tube assembly A is tilted, The lower surface 222 effectively prevents outflow of liquid in the lumen 13.

Before use, the tube assembly A and the liquid flow guiding device B are separated from each other;

In use, the liquid guiding device B is fixedly coupled to the tube assembly A, and the lower portion B-1 of the liquid guiding device is placed in the channel 2c and pressed against the upper surface 221 of the sealing film 2b, so that The occluding membrane 2b is deformed to form a channel a, and the liquid outlet 32 of the liquid guiding device B communicates with the tube lumen 13.

Example 4

As shown in Figure 12, Figure 13, Figure 14, Figure 15

The test tube plug 2 includes a connecting body 2a fixedly connected to the open end 12 of the test tube 1 and a liquid outside the blocking lumen 13 The flow of the plugging film 2b, the connecting body 2a and the plugging film 2b are integrated. The plugging film 2b is provided with two thicknesses. The thickness of the plugging film 2b is the second thickness D2, and D2 is 0.2 mm. When the test tube assembly A and the liquid flow guiding device B are not fixed, the upper surface 221 of the sealing film 2b is intact, and the lower surface 222 of the sealing film 2b is provided with a groove 226, and the groove bottom surface 227 to the upper surface 221 are vulnerable portions. The vulnerable portion has a first thickness of a first thickness D1 and a D1 of 0.05 mm. The test tube plug 2 is made of an elastic material.

The liquid guiding device B is provided with a flow guiding passage 3 and an exhaust passage 4 which are not in communication with each other; and a connecting portion 5 for separating the exhaust passage 3 and the guiding passage 4. The upper end of the flow guiding channel 3 is a liquid inlet port 31, the lower end of the air guiding channel 3 is a liquid outlet 32; the lower end of the exhaust channel 4 is an exhaust port 41, and the upper end of the exhaust channel 4 is an air outlet 42; 32 and the exhaust port 41 are located in the lower portion B-1 of the liquid flow guiding device. The connecting portion 5 extends downward to form a partitioning body 51, and the lowest point of the partitioning body 51 is located below the liquid outlet 32 and the exhaust port 41. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 10 mm ² ; the minimum cross-sectional area of the exhaust channel is 10 mm ² .

When the lower portion B-1 of the liquid guiding device is fixedly coupled with the test tube assembly A, the lower portion B-1 of the liquid flow guiding device punctures the vulnerable portion of the sealing film 2b and the sealing film 2b at the vulnerable portion is downward and When pushed outward, the liquid smoothly flows into the lumen 13 of the test tube 1 through the flow guiding channel 3. When the disposable body fluid indwelling device is tilted, the liquid in the lumen 13 forms a liquid film at the liquid outlet 32 and the exhaust port 41, effectively preventing the outflow of the liquid in the lumen 13.

After the liquid flow guiding device B is separated from the test tube assembly A, the sealing film 2b at the vulnerable portion is gathered upward and in the axial direction to form the groove bottom surface 227. When the test tube assembly A is tilted, the groove bottom surface 227 effectively prevents the outflow of liquid in the lumen 13.

Example 5

As shown in Fig. 15, Fig. 16, Fig. 17, Fig. 18 and Fig. 19.

Wherein, the test tube assembly A includes a test tube 1 and a test tube plug 2 disposed at the open end 12.

The test tube plug 2 includes a connecting body 2a fixedly connected to the open end 12 of the test tube 1 and a liquid outside the blocking lumen 13 The flow of the plugging film 2b, the connecting body 2a and the plugging film 2b are integrated. The sealing film 2b is provided with a fixing portion 21 and a movable portion 22, and the fixing portion 21 is connected to the connecting body 2a. The movable portion 22 is formed to extend from the fixing portion 21 to the axis, and the movable portion 22 is movable relative to the fixing portion 21. The plugging film 2b is provided with a reset structure 2f, and the reset structure 2f has an increased thickness of the movable portion 22 close to the fixed portion 21.

The movable portion 22 has an upper surface 221, a lower surface 222, and a side surface 223 that connects the upper surface 221 and the lower surface 222. The side surface 223 of the movable portion 22 abuts against the inner side wall 2e of the test tube plug. The recess 2d is formed by enclosing the upper surface 221 of one movable portion 22 and the passage wall 2c-1 of the passage 2c. The test tube plug 2 is made of an elastic material.

The liquid guiding device B is provided with a flow guiding passage 3 and an exhaust passage 4 which are not in communication with each other; and a connecting portion 5 for separating the exhaust passage 3 and the guiding passage 4. The upper end of the flow guiding channel 3 is a liquid inlet port 31, the lower end of the air guiding channel 3 is a liquid outlet 32; the lower end of the exhaust channel 4 is an exhaust port 41, and the upper end of the exhaust channel 4 is an air outlet 42; 32 and the exhaust port 41 are located in the lower portion B-1 of the liquid flow guiding device. The connecting portion 5 extends downward to form a partitioning body 51, and the lowest point of the partitioning body 51 is located below the liquid outlet 32 and the exhaust port 41. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 12 mm ² ; the minimum cross-sectional area of the exhaust channel is 8 mm ² .

The lower portion and the periphery of the liquid flow guiding device are provided with a 360° annular shielding body 7 , and the annular shielding body 7 is connected with the annular side wall 6 of the liquid guiding device B, and the annular shielding body 7 and the liquid guiding device B As one.

A portable one-time sealed body fluid indweller has two states. When the portable one-time sealed body fluid indweller is in the first state, the test tube assembly A and the liquid flow guiding device B are separated from each other; the portable one-time closed body fluid indweller is In the second state, the liquid flow guiding device B is fixedly coupled with the test tube assembly A, the lower portion B-1 of the liquid flow guiding device presses against the upper surface 221 of the sealing film 2b, and the lower portion B-1 of the liquid guiding device blocks the sealing film. One movable portion 22 of 2b is pushed downward and outward, and the sealing film 2b is deformed to form a channel A (not shown), so that the liquid outlet 32 of the liquid guiding device B communicates with the test tube lumen 13.

When the portable one-time sealed body fluid indwelling device is tilted, the liquid in the lumen 13 forms a liquid film at the liquid outlet 32 and the exhaust port 41, effectively preventing the outflow of the liquid in the lumen 13.

After the liquid flow guiding device B is separated from the test tube assembly A, one movable portion 22 of the blocking film 2b is lifted up and closed, and the side surface 223 of the movable portion 22 abuts against the inner side wall 2e of the test tube plug, effectively preventing the lumen 13 from being inserted. The outflow of liquid.

Wherein, the test tube assembly A can also be as shown in FIGS. 20 and 21;

The test tube 1 is provided with an open end 12 for mating with the test tube plug 2 and the liquid flow guiding device B; and for storage The lumen 13 of the liquid.

The test tube plug 2 includes a connecting body 2a that is fixedly connected to the open end 12 of the test tube 1, and a sealing film 2b that blocks the outflow of the liquid in the lumen 13. The connecting body 2a and the sealing film 2b are integrated. The sealing film 2b is provided with a fixing portion 21 and a movable portion 22, and the fixing portion 21 is connected to the connecting body 2a, and the movable portion 22 is movable relative to the fixing portion 21. The plugging film 2b is provided with a reset structure 2f, and the reset structure 2f is a joint of the fixing portion 21 and the movable portion 22, 2g.

The movable portion 22 has an upper surface 221, a lower surface 222, and a side surface 223 that connects the upper surface 221 and the lower surface 222. The upper surface 221 of the movable portion 22 abuts against the end surface 2h of the tube stopper. The recess 2d is formed by enclosing the upper surface 221 of one movable portion 22 and the channel wall 2c-1. The test tube plug 2 is made of an elastic material.

After the liquid flow guiding device B is separated from the test tube assembly A, one movable portion 22 of the blocking film 2b is lifted up and closed, and the upper surface 221 of the movable portion 22 abuts against the bottom end portion 2h of the test tube stopper, thereby effectively preventing the lumen 13 The outflow of liquid in.

Example 6

1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 8.

The test tube plug 2 includes a connecting body 2a that is fixedly connected to the open end 12 of the test tube 1, and a sealing film 2b that blocks the outflow of the liquid in the lumen 13. The connecting body 2a and the sealing film 2b are integrated. The sealing film 2b is provided with a fixing portion 21 and four movable portions 22, and the fixing portion 21 is connected to the connecting body 2a. The movable portion 22 is formed to extend from the fixing portion 21 to the axis, and the movable portion 22 is movable relative to the fixed portion 21. The movable portion 22 has an upper surface 221, a lower surface 222, and a connection Surface 221 and side 223 of lower surface 222. A gap 23 is provided between the side faces 223 of the adjacent movable portions 22. The distance between the upper surfaces 221 of the adjacent two movable portions 22 is the pitch A2-31, and the pitch A2-3-1 is 0.3 mm; the distance between the gaps 23 at the adjacent lower surface 222 is the spacing B-2, and the spacing B-2 is 2-2. It is 0.1mm. The longitudinal section of the gap 23 is an inverted trapezoid. An axial recess 2d and a columnar passage 2c are provided above the upper surface 221 of the movable portion 22. The recess 2d is formed by enclosing the upper surface 221 of the four movable portions 22 and the passage wall 2c-1 of the passage 2c. The test tube plug 2 is made of an elastic material.

The connecting portion 5 extends downward to form a partitioning body 51, and the lowest point of the partitioning body 51 is located below the liquid outlet 32 and the exhaust port 41. The liquid outlet 32 and the exhaust port 41 are on the same plane. The minimum cross-sectional area of the diversion channel is 8 mm ² ; the minimum cross-sectional area of the exhaust channel is 8.5 mm ² .

Before use, when the portable disposable fluid body indweller is in the first state, the tube assembly A and the liquid flow guiding device B are separated from each other;

In use, when the portable disposable fluid body indweller is in the second state, the liquid guiding device B is fixedly coupled with the tube assembly A, and the lower portion B-1 of the liquid guiding device is placed in the channel 2c and The upper surface 221 of the sealing film 2b is pressed to deform the sealing film 2b to form a channel nail 8, and the liquid outlet 32 of the liquid guiding device B communicates with the test tube lumen 13.

After the liquid flow guiding device B is separated from the test tube assembly A, the four movable portions 22 of the plugging film 2b are gathered upward and in the axial direction. When the test tube assembly A is tilted, the liquid in the lumen 13 forms a liquid film at the gap 23, since the distance between the adjacent lower surfaces 222 is lower than the distance between the adjacent upper surfaces 221, A 23 - 1. The liquid in the lumen rapidly forms a liquid film when contacting the surface 222, effectively preventing the liquid in the lumen 13. In vitro flow.

Test Description: Performance test of a convenient disposable closed body fluid indweller.

The plugging membrane of the test tube plug is provided with a movable part and a fixed part. The material of the test tube plug is 50 degree silica gel, and the thickness of the movable part is 0.5 mm; the test strip is 15 test standard test strips, and the test strip substrate is PVC, test The strip has a thickness of 0.25 mm, the strip width is 5.0 mm, and the strip length is 110 mm. When the test strip is inserted, the thumb and forefinger are pinched at 90 mm from the insertion end, and the angle is 90° perpendicular to the insertion and withdrawal. The disposable body fluid indweller is 90° perpendicular to the opening of the test tube filled with liquid, and the total number of tests is 100 times. Based on this, the probability percentage of the test item is obtained; the resistance when the test strip is inserted and extracted is 100. The mean value of the subtest value. The leak proof test is to calculate the percentage of probability by tilting 75° in the case where the disposable sealed body fluid indwelling tube is filled with liquid, and repeating 100 times to check the outflow of the liquid in the test tube.

The minimum resistance position when the test strip is inserted refers to the position where the edge of the movable portion is away from the fixed portion.

Leakproof performance:

The test tube is filled with liquid, and the opening of the test tube is connected with the lower portion of the liquid flow guiding device. At this time, the liquid flow guiding device is inclined at a flow rate of 75° in the test tube.

In the invention, the test tube is filled with liquid, and the opening of the test tube is connected with the lower portion of the liquid flow guiding device. At this time, the inclined liquid flow guiding device is left at 75° for 2 seconds, and 98% of the liquid in the test tube has no outflow.

In the prior art, the test tube is filled with liquid, and the opening of the test tube is connected with the lower portion of the liquid flow guiding device. At this time, the inclined liquid flow guiding device is left at 75° for 2 seconds, and the liquid in the test tube is 85% outflow.

Conclusion: The present invention has good leakproof performance, and the performance is obviously superior to the prior art.

When the disposable sealed body fluid indwelling device is filled with liquid in the test tube, the probability that the liquid guiding device will carry the liquid out of the opening of the test tube when the liquid guiding device that is engaged with the opening portion is pulled out is:

In the prior art, in the case where the disposable sealed body fluid indwelling device is filled with the liquid in the test tube, the probability that the liquid guiding device carries the liquid out of the opening of the test tube when the liquid guiding device is pulled out with the opening portion is 87%. .

In the present invention, the disposable sealed body fluid indwelling device is filled with the liquid in the case where the test tube is filled with liquid The probability of the liquid guiding device at the lower part of the liquid guiding device taking the liquid out of the opening of the test tube: 7%.

Conclusion: When using the present invention to test a disposable sealed body fluid indwelling device filled with a liquid in a test tube, the probability of the liquid guiding device lowering the liquid out of the opening of the test tube is obvious when the liquid guiding device that cooperates with the opening portion is pulled out. Less than the prior art.

Single insertion of the minimum resistance position accuracy when the test strip is inserted:

In the prior art, when the test strip is inserted, the accuracy of the single-position minimum resistance position is 35%.

In the present invention, when the test strip is inserted, the accuracy of the single-position minimum resistance position is 99%.

Conclusion: The invention can quickly and accurately find the minimum resistance position under the action of the guiding of the depression, and the insertion accuracy is obviously superior to the prior art.

The minimum resistance to the test strip when inserted:

In the prior art, when the test strip is inserted, the minimum resistance is 0.06N.

In the present invention, when the test strip is inserted, the minimum resistance is 0.01 N.

Conclusion: The present invention is less convenient than the prior art products when the test strip is inserted, which is convenient and efficient.

The maximum resistance that the test strip can withstand smoothly:

In the prior art, when the test strip is inserted, the test strip can be smoothly inserted to withstand a maximum resistance of 0.07N.

In the present invention, when the test strip is inserted, the test strip can be smoothly inserted to withstand a maximum resistance of 0.07N.

Conclusion: When the resistance is greater than 0.07N, the test strip will bend and deform when inserted, resulting in difficulty in insertion.

The success rate of the test strip can be smoothly inserted into the test tube in a single pass:

In the prior art, the test strip can be smoothly inserted into the gap of the test tube in a single pass, and the success rate of entering the test tube is 7%.

In the present invention, the test strip can be smoothly inserted into the gap of the test tube in a single pass, and the success rate of entering the test tube is 100%.

Conclusion: The test strip can be inserted into the test tube more efficiently and conveniently than the prior art by the present invention.

The force required when the test strip is taken out:

In the prior art, the pumping force required for the strip is 0.03 N.

In the present invention, the suction force required for the test strip is 0.01 N.

Conclusion: The present invention is subject to significantly less resistance when the test strip is withdrawn than prior art products.

The probability of taking the liquid from the test tube out of the active part when the test strip is withdrawn:

In the prior art, when the test strip is taken out, the probability of the liquid taking out the moving part is 83%.

In the present invention, the probability of the liquid taking out the moving portion when the test strip is taken out is 12%.

Conclusion: The probability of taking the liquid out of the active part when the test strip is extracted during the test using the invention is significantly smaller than the existing one. technology.

Probability of liquid taking out the test tube plug when the test strip is withdrawn:

In the prior art, the probability of taking the liquid out of the tube plug when the test strip is withdrawn is 75%.

In the present invention, the probability of taking the liquid out of the tube stopper when the test strip is withdrawn is 2%.

Conclusion: During the test using the present invention, the probability of taking the liquid out of the test tube plug when the test strip is withdrawn is significantly less than that of the prior art, and the use of the present invention is cleaner and cleaner than using the prior art.

The combination of the test tube assembly and the liquid guiding device:

In the prior art, the test tube and the liquid flow guiding device cannot be fixedly matched, and the two people need to cooperate in use, for example, the single-person operation is highly prone to drop of the liquid take-off member.

The test tube plug in the test tube assembly of the invention is provided with a passage for use with the liquid flow guiding device, so that the liquid take-up member can be easily fixed, and the operation can be carried out as long as a single person, and the invention can effectively and conveniently guide the test tube and the liquid. The device is fixedly connected.

Claims

A convenient disposable closed body fluid indweller,

Including test tube assembly (A) and liquid flow guiding device (B);

The test tube assembly (A) comprises a test tube (1) and a test tube plug (2) disposed at the open end (12) of the test tube (1);

The liquid guiding device (B) is provided with a flow guiding channel (3) and an exhaust passage (4) which are not connected to each other; a lower portion (B-1) of the liquid guiding device and the test tube assembly (A) When the mating is fixed, liquid can flow into the lumen (13) of the test tube (1) through the flow guiding channel (3);

It is characterized by:

The minimum cross-sectional area of the diversion channel (3) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ; the minimum cross-sectional area of the exhaust passage (4) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ;

The test tube plug (2) includes a connecting body (2a) fixedly connected to the open end (12) of the test tube (1) and a sealing film (2b) for blocking the outflow of the liquid in the lumen (13). The connecting body (2a) and the sealing film (2b) are integrated;

When the liquid guiding device (B) is fixed or separated from the tube assembly (A), the occluding membrane (2b) blocks the liquid in the lumen (13) from being easily detached from the lumen (13). Out of it.
A portable one-time sealed body fluid indwelling device according to claim 1, characterized in that the minimum cross-sectional area of the exhaust passage (4) is not less than 25% of the minimum cross-sectional area of the flow guiding channel (3).
A portable disposable closed body fluid indwelling device according to claim 1, wherein:

The minimum cross-sectional area of the flow guiding channel (3) is greater than or equal to 3 mm 2 and less than or equal to 15 mm 2 ; the minimum cross-sectional area of the exhaust passage (4) is greater than or equal to 3 mm 2 and less than or equal to 15 mm 2 .
A portable disposable closed body fluid indwelling device according to claim 1, wherein:

The plugging film (2b) is provided with a fixing portion (21) and a movable portion (22), the fixing portion (21) is connected to the connecting body (2a), and the movable portion (22) is fixed by the fixing portion a portion (21) extendingly movable, the movable portion (22) being movable relative to the fixed portion (21); the movable portion (22) having an upper surface (221), a lower surface (222), and a connecting upper surface (221) and a side surface (223) of the lower surface (222), an axial recess (2d) is provided above the upper surface (221) of the movable portion (22).
A portable one-time sealed body fluid indwelling device according to claim 4, wherein said axial recess (2d) is enclosed by said upper surface (221), or said axial direction a recess (2d) from the upper The surface (221) and the channel wall (2c-1) are enclosed.
The portable disposable body fluid indwelling device according to claim 4, wherein a gap (23) is formed between the side faces (223) of the movable portion (22), and the gap (23) is formed. Axial through hole.
A portable disposable body fluid retention device according to claim 6, wherein the gap (23) is narrowed from the upper surface (221) to the lower surface (222).
The portable disposable body fluid indwelling device according to claim 7, wherein the gap (23) on the lower surface (222) is larger than 0.05 mm and smaller than 0.3 mm, and is located on the upper surface (221). 23) greater than 0.3 mm and less than or equal to 1.5 mm.
A portable disposable closed body fluid indwelling device according to claim 4, wherein:

The plugging film (2b) is provided with a tangent (225) penetrating the upper surface (221) and the lower surface (222).
A portable disposable closed body fluid indwelling device according to claim 4, wherein:

The movable portion (22) is one, and the movable portion (22) is located at a lower portion of the test tube plug (2).
The portable disposable body fluid retention device according to claim 10, characterized in that the fixing portion (21) is further provided with a reset structure (2f).
A portable disposable body fluid retention device according to claim 11, wherein said resetting structure (2f) is a junction of said movable portion (22) and said fixed portion (21) is C type.
A portable disposable body fluid retention device according to claim 11, wherein said resetting structure (2f) is an increase in thickness of said sealing film (2b) adjacent said fixing portion (21) .
A portable disposable sealed body fluid indwelling device according to any one of claims 4 to 13, wherein said axial recess (2d) is included on an upper surface of said movable portion (22) (221 ) The upper axial channel (2c).
A portable disposable closed body fluid indwelling device according to claim 1, wherein:

The plugging film (2b) is provided with a fixing portion (21) and a movable portion (22), the fixing portion (21) is connected to the connecting body (2a), and the movable portion (22) is fixed by the fixing portion a portion (21) extendingly movable, the movable portion (22) being movable relative to the fixed portion (21); the movable portion (22) having an upper surface (221), a lower surface (222), and a connecting upper surface (221) and a side surface (223) of the lower surface (222), a gap (23) is provided between the side surface (223) of the movable portion (22), and the gap (23) forms an axial through hole The gap (23) is narrowed from the upper surface (221) to the lower surface (222).
A portable disposable body fluid retention device according to claim 15, wherein a channel (2c) is disposed above the upper surface (221) of the occlusion membrane (2b).
The portable disposable body fluid retention device according to claim 1, wherein the sealing film (2b) is provided with at least two thicknesses, and the first thickness (D1) is smaller than the second thickness (D2). The vulnerability is the first thickness (D1).
A portable one-time sealed body fluid indwelling device according to claim 17, wherein the first thickness (D1) is greater than or equal to 0.03 mm and less than or equal to 0.15 mm.
A portable disposable body fluid retention device according to claim 18, wherein at least said sealing film is not provided when said test tube assembly (A) and said liquid flow guiding device (B) are not fixed together One of the upper surface (221) or the lower surface (222) of (2b) is intact.
The portable disposable body fluid retention device according to claim 19, wherein the lower surface (222) of the sealing film (2b) is provided with a groove (226) and a groove bottom surface (227). The distance to the upper surface (221) is the first thickness (D1).
The portable disposable body fluid retention device according to claim 20, wherein the upper surface (221) of the sealing film (2b) is provided with a groove (226) and a groove bottom surface (227). The distance to the lower surface (222) is the first thickness (D1).
The portable disposable body fluid indwelling device according to any one of claims 17 to 21, characterized in that the upper surface (221) of the plugging film (2b) is a curved surface, a slope or a plane which is recessed downward. .
A portable one-time sealed body fluid indwelling device according to claim 22, wherein the minimum cross-sectional area of the exhaust passage (4) is not less than 25% of the minimum cross-sectional area of the flow guiding channel (3).
A portable disposable body fluid retention device according to claim 19, wherein said occlusion membrane (2b) is provided with a tangent that does not penetrate said lower surface (222) or upper surface (221) ( 225), the upper surface (221) is a downwardly concave curved surface or a sloped surface, and the exhaust passage (4) has a minimum cross-sectional area not less than 25% of the minimum cross-sectional area of the flow guiding passage (3).

The portable disposable fluid body indwelling device according to claim 1, wherein the liquid guiding device (B) is provided with a shielding body (7), and the shielding body (7) is used for guiding The trajectory of the liquid outside the flow guiding channel (3) is changed during the flow.
A portable disposable body fluid retention device according to claim 25, wherein said shielding body (7) comprises a shielding side wall (7-1), said shielding side wall (7-1) surrounding The test tube is less than or equal to 360°.
A portable disposable body fluid retention device according to claim 26, wherein said shielding body (7) comprises a movable portion (72) and a fixed portion (71), said movable portion A ( 72) relative to the said The fixed portion (71) is movably connected; the fixed portion (71) is fixedly coupled to the lower portion (B-1) of the liquid flow guiding device.
A portable disposable fluid body indwelling device according to claim 27, wherein said movable portion (72) is sleeved with said fixed portion (71), and said movable portion A (72) ) is free to slide in the axial direction with respect to the fixed portion A (71).
A portable disposable body fluid retention device according to claim 28, wherein the side wall of the movable portion (72) is provided with an axial contraction groove (73).
The portable disposable body fluid indwelling device according to claim 26, wherein the shielding body (7) comprises a movable portion B and a fixed portion B, and the movable portion B is opposite to the fixed portion Rotating, the movable portion B and the fixing portion B are both arc-shaped in cross section, and the fixing portion B is fixedly connected to the lower portion (B-1) of the liquid guiding device.
A portable disposable fluid body indwelling device according to claim 25, wherein said liquid guiding device (B) further comprises a handle (61), said handle being provided with a protective side wall (62) The protective sidewall (62) is used to prevent liquid from splashing on the handle (61).
A portable disposable sealed body fluid indwelling device according to any one of claims 25, 26, 27, 28, 29, 30 or 31, wherein the exhaust passage (4) has a minimum cross-sectional area of not less than The guide channel (3) has a minimum cross-sectional area of 25%.
A portable disposable fluid body indwelling device according to claim 1, wherein said liquid guiding device (B) is provided with an exhaust port (41) for said exhaust passage (4) and a partition structure of the liquid outlet (32) of the flow guiding channel (3), the exhaust port (41) and the liquid outlet (32) are located at a lower portion of the liquid flow guiding device (B-1) The partition structure is used to increase the distance of liquid from the liquid outlet (32) to the exhaust port (41) during the diversion process.
A portable disposable sealed body fluid indwelling device according to claim 33, wherein said partitioning structure is a partitioning body (51); said partitioning body (51) is for separating said exhaust passage ( 4) and the connecting portion A (5) of the flow guiding channel (3) is formed to extend outward.
A portable disposable sealed body fluid indwelling device according to claim 33, wherein said partitioning structure is for use between said exhaust port (41) and said liquid outlet (32) An inwardly recessed nail (52) is disposed on the connecting portion (5) separating the exhaust passage (4) and the flow guiding passage (3).
A portable disposable body fluid retention device according to claim 33, wherein said partition structure has a height difference between said exhaust port (41) and said liquid outlet (32) .
A portable one-time sealed body fluid indwelling device according to claim 36, wherein said exhaust port (41) and said liquid outlet (32) are not on the same surface, and said exhaust gas The mouth (41) is higher than the liquid outlet (32).
A portable disposable body fluid retention device according to claim 16, 23 or 24, characterized in that the lower part (B-1) of the liquid flow guiding device is provided with a shielding body (7), the shielding The body (7) is for changing a movement trajectory of the liquid outside the flow guiding channel (3) during the diversion process; the shielding body (7) comprises a shielding side wall (7-1), the shielding side wall (7) -1) The surrounding tube is less than or equal to 360°.
A portable one-time sealed body fluid indwelling device according to claim 38, wherein said shielding side wall (7-1) surrounds the test tube 360°, and said shielding side wall (7-1) is provided An opening (76) for observation and scanning.
A portable disposable body fluid retention device according to claim 38, wherein said shielding body (7) comprises a movable portion (72) and a fixed portion (71), said movable portion ( 72) is sleeved with the fixed portion (71), and the movable portion (72) is slidable in the axial direction relative to the fixed portion (71); the fixed portion A (71) is The lower portion (B-1) of the liquid guiding device is fixedly connected, and the side wall of the movable portion (72) is provided with an axial contraction groove (73).
A portable disposable fluid body indwelling device according to claim 39 or 40, wherein said liquid guiding device (B) is provided with an exhaust port for said exhaust passage (4) (41) a partition structure separated from a liquid outlet (32) of the flow guiding passage (3), the exhaust port (41) and the liquid outlet (32) being located at a lower portion of the liquid flow guiding device (B) -1), the partition structure is used to increase the flow of liquid from the liquid outlet (32) to the exhaust port (41) during the diversion process, the partition structure is a partition body (51); The partition body (51) is formed by an outward extension of a joint portion (5) for partitioning the exhaust passage (4) and the flow guiding passage (3).
A convenient disposable closed body fluid indweller,

Including test tube assembly (A) and liquid flow guiding device (B);

The test tube assembly (A) comprises a test tube (1) and a test tube plug (2) disposed at the open end (12) of the test tube;

The liquid guiding device (B) is provided with a flow guiding channel (3) and an exhaust passage (4) which are not connected to each other; a lower portion (B-1) of the liquid guiding device and the test tube assembly (A) When the mating is fixed, liquid can flow into the lumen (13) of the test tube (1) through the flow guiding channel (3);

It is characterized by:

The minimum cross-sectional area of the diversion channel (3) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ; the minimum cross-sectional area of the exhaust passage (4) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ;

The test tube plug (2) is provided with a plugging membrane (2b), and an axial passage (2c) above the plugging membrane (2b);

When the liquid flow guiding device (B) is fixedly coupled with the test tube assembly (A), the lower portion (B-1) of the liquid flow guiding device is placed in the passage (2c), and the liquid flow guiding device (B) The liquid outlet (32) is located above the upper surface (221) of the plugging film (2b).
A convenient disposable closed body fluid indweller,

Including test tube assembly (A) and liquid flow guiding device (B);

The test tube assembly (A) comprises a test tube (1) and a test tube plug (2) disposed at the open end (12) of the test tube;

The liquid guiding device (B) is provided with a flow guiding channel (3) and an exhaust passage (4) which are not connected to each other; a lower portion (B-1) of the liquid guiding device and the test tube assembly (A) When the mating is fixed, liquid can flow into the lumen (13) of the test tube (1) through the flow guiding channel (3);

It is characterized by:

The minimum cross-sectional area of the diversion channel (3) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ; the minimum cross-sectional area of the exhaust passage (4) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ;

The test tube plug (2) is provided with a plugging membrane (2b) and an axial passage (2c) above the plugging membrane (2b);

When the portable disposable fluid body indweller is in the first state, the tube assembly (A) and the liquid flow guiding device (B) are separated from each other;

When the portable disposable fluid body indweller is in the second state, the liquid guiding device (B) is fixedly coupled with the tube assembly (A), and the lower portion (B-1) of the liquid guiding device is pressed against the sealing device. Blocking the upper surface (221) of the membrane (2b), deforming the occlusive membrane (2b) to form a channel A (8), the liquid outlet (32) of the liquid guiding device (B) and the test tube lumen ( 13) Connected.
A convenient disposable closed body fluid indweller,

Including test tube assembly (A) and liquid flow guiding device (B);

The test tube assembly (A) comprises a test tube (1) and a test tube plug (2) disposed at the open end (12) of the test tube;

The liquid guiding device (B) is provided with a flow guiding channel (3) and an exhaust channel (4) which are not in communication with each other; When the lower portion (B-1) of the liquid guiding device is fixedly coupled with the tube assembly (A), liquid can flow into the lumen (13) of the test tube (1) through the flow guiding channel (3);

It is characterized by:

The minimum cross-sectional area of the diversion channel (3) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ; the minimum cross-sectional area of the exhaust passage (4) is greater than or equal to 3 mm 2 and less than or equal to 20 mm 2 ;

The test tube plug (2) is provided with a plugging membrane (2b) and an axial passage (2c) above the plugging membrane (2b);

The liquid flow guiding device (B) is fixedly coupled to the test tube assembly (A), and a lower portion (B-1) of the liquid flow guiding device presses against an upper surface (221) of the sealing film (2b), The plugging membrane (2b) is deformed to form a channel (8), and the liquid outlet (32) of the liquid guiding channel (3) communicates with the tube lumen (13).