WO2017080421A1

WO2017080421A1 - Fluid taking part for closed body fluid indwelling device

Info

Publication number: WO2017080421A1
Application number: PCT/CN2016/104903
Authority: WO
Inventors: 单希杰
Original assignee: 单希杰
Priority date: 2015-11-09
Filing date: 2016-11-07
Publication date: 2017-05-18

Abstract

A collection device for collecting body fluid, in particular a fluid taking part (100) for a closed body fluid indwelling device. The fluid taking part (100) comprises a ring-shaped side wall (1) and a channel component (2). A channel (11) is defined by the ring-shaped side wall (1), the channel component (2) is arranged in the channel (11) and is located at the lower part (13) of the channel (11), the channel component (2) is matched with the ring-shaped side wall (1) in a split way, and the channel component (2) is provided with through holes (23, 24). The upper part (12) of the channel (11) is used for collecting fluid, and the lower part (13) of the channel (11) is connected with the channel component (2) in a matching way. The fluid taking part (100) can reduce the cost and improve the production efficiency, and can prevent fluid in a test tube from being poured out from a diversion channel or an exhaust channel when excessive fluid in the fluid taking part is poured out.

Description

Liquid taking part for sealed body fluid indweller

Technical field

The invention relates to the field of medical instruments, and in particular to a collecting device for collecting body fluids.

Background technique

The liquid take-off member for the sealed body fluid indweller of the prior art only has a flow guiding passage and no exhaust passage. In use, the liquid take-up piece is sealed with the test tube, and the liquid take-up piece collects the liquid and then transfers the liquid to the test tube, but at the junction of the liquid take-off piece and the container, liquid retention often occurs. Even if the liquid take-up member is provided with an exhaust passage, during the liquid guiding process, there is still liquid flowing to the exhaust port to block the exhaust port to cause liquid retention.

The prior art fluid body for a closed body fluid indweller is mostly of a unitary structure. Since the liquid taking member has two non-intersecting passages, the shapes of the two passages are different; and the different sections of each passage are also different; secondly, the integral structure makes the annular side wall for collecting the liquid of the liquid take-up member and The part of the liquid and gas is prepared by using the same material, which results in complicated processing technology, high material cost and mold cost, and low production efficiency.

Further, when the liquid take-up member dumps excess liquid in the liquid take-up member, the liquid in the test tube fitted with the liquid take-up member is easily poured out from the exhaust passage or the liquid guide passage.

Therefore, how to reduce the cost and increase the production efficiency without affecting the liquid collection, and when the excess liquid in the liquid take-up member is poured out, the liquid in the test tube is not easily poured out from the exhaust passage or the liquid guide passage. The technical problems that need to be solved in the industry.

Summary of the invention

The object of the present invention is to disclose a closed body fluid retention device which can reduce the cost and increase the production efficiency and prevent the liquid in the test tube from pouring out from the flow guiding channel or the exhaust passage when the excess liquid in the liquid take-up member is poured out. Use the liquid take-up.

The technical solution of the present invention is as follows:

A liquid take-up for a closed body fluid indweller, comprising an annular side wall and a channel assembly. The annular sidewall encloses a channel, the channel assembly is disposed in the channel and is located at a lower portion of the channel, the channel assembly and the annular sidewall are separately coupled, and the channel assembly is provided with a through hole . Wherein, the channel is used for collecting liquid as the upper part of the channel, and the channel for connecting with the channel component is the lower part of the channel.

In the above solution, the channel assembly is provided with two through holes that are not in communication with each other, and the two mutually non-intersecting through holes are a through hole and a through hole B, and the two through holes have a common side wall. The common side wall extends downward to form a partition body, and the partition body is provided with an axial groove arm. The groove nail is used to increase the fastness of the mold part-core rod (the core rod is used to form a through hole in the injection molding process), and the yield of the product is improved. The common side wall is further provided with an axial blind hole. The blind hole is used to reduce production The shrinkage rate in the production process improves the yield of the product.

Wherein, the through hole can be a straight hole; or a curved hole with a bend.

The straight holes may be columnar holes, such as cylindrical holes, elliptical column holes, or columnar holes of different sizes, etc., but are not limited thereto.

When the through hole is the curved hole, the curved hole may be formed by a combination of a straight hole and a diagonal hole connection, and the straight hole is located below the inclined hole.

In the above solution, the upper opening A of the through hole arm is higher than the upper opening B of the through hole B. The through hole is used for exhaust gas, and the through hole B is used for diverting liquid.

In the above solution, the length of the through hole arm is greater than the length of the through hole B.

In the above solution, the common side wall is located at a lower portion of the through hole.

In the above solution, the two through holes are parallel to the axis of the common side wall segment. That is, when the through hole is a straight hole, the axis of the through hole is parallel to the lower axis of the through hole B. When the through hole is an angled hole, the straight hole segment axis of the through hole is parallel to the lower axis of the through hole B.

In the above solution, at least a portion of the through hole is parallel to the through hole B. That is, when the through hole is a curved hole, only the straight hole segment axis of the through hole is parallel to the lower axis of the through hole B.

In the above embodiment, the through-Jia of Xia 3 mm at the smallest cross-sectional area greater than 15 mm ² or less ^2; the through hole is larger than the sectional area B at minimum 15 mm ² 3 mm ² or less. Further, the minimum cross-sectional area of the through hole B is larger than the minimum cross-sectional area of the through hole. The cross-sectional area refers to the area of the cross section.

When the through hole is a straight hole:

Wherein, the cross-sectional area of the cross-section of the through-hole B is the smallest, and the cross-sectional area of the cross-section of the through-hole A is the smallest. In the prior art, the exhaust passage is not a straight tubular (or sleeve-like) straight up and down, and the exhaust passage is provided with a bend, so that the minimum cross-sectional area of the exhaust passage is greater than or equal to the cross-sectional area of the cross-sectional area of the guide passage. . When the liquid in the test tube matched with the liquid take-up member is filled with liquid, the flow guiding passage of the liquid take-up member still has liquid, and the excess liquid in the liquid take-off member needs to be poured off, and the liquid take-off member and the test tube can be separated and exhausted. The minimum cross-sectional area of the channel is larger than the minimum cross-sectional area of the liquid-conducting channel, so the exhaust channel has a straight tubular shape that is bent rather than straight up and down, which can prevent the liquid in the test tube from pouring out through the exhaust passage. However, a disadvantage of the prior art is that since the exhaust passage is not straight tubular, the gas in the test tube is discharged slowly during the liquid infusion of the test tube, thereby affecting the speed of the liquid flowing into the test tube. In the present invention, the exhaust passage is a straight straight tube that is straight up and down, so that the gas in the test tube is discharged faster, shortening the time for the liquid to fill the test tube. In addition, since the cross-sectional area of the exhaust passage is the smallest at least the cross-sectional area of the flow passage, when the excess liquid in the liquid take-up member is drained, the liquid film is more likely to form at the exhaust port of the exhaust passage, thereby effectively preventing the liquid from being discharged. The exhaust passage is poured out.

When the through hole is a curved hole: since the minimum cross-sectional area of the exhaust passage is smaller than the minimum cross-sectional area of the flow guiding passage, when the excess liquid in the liquid take-up member is poured out, the exhaust port of the exhaust passage is more likely to form a liquid. The membrane is effective to prevent liquid from pouring out of the exhaust passage.

In the above scheme, the cross-sectional areas of the through holes are not equal. It may be that the cross-sectional areas of the through holes B are different, or the cross-sectional areas of the portions are not equal; the cross-sectional areas of the through-holes may be different, or the cross-sectional areas of the portions may be different; It also means that the cross-sectional areas of through-hole and through-hole B are not equal.

Wherein at least part of the through holes have different cross-sectional areas. The through hole B may be provided with a step B; for example, the through hole B may be formed by two different cross-sectional area holes, and the two different cross-sectional hole joints form a step B. The cross section of the through hole B may be a circle, an ellipse or the like. It may be that the lower cross-sectional area of the through hole B is larger than the upper cross-sectional area; or the upper cross-sectional area of the through-hole B may be larger than the lower cross-sectional area.

When the liquid take-up member dumps the excess liquid, the lower cross-sectional area of the through-hole B is larger than the upper cross-sectional area, and the liquid in the test tube can be prevented from being poured out from the through-hole B of the liquid take-up member. The upper cross-sectional area of the through hole B is larger than the lower cross-sectional area, which is advantageous for the production of the mold and improves the yield.

Wherein at least part of the through hole has a cross-sectional area of unequal. The stepped armor may be provided with a step armor; the step armor may be located at a lower portion of the through hole armor or at an upper portion of the through hole armor; or the through hole of the through hole arm has a lower cross sectional area smaller than the upper opening cross. The through hole area, the through hole can be a rounded hole; or the through hole of the through hole has a lower cross sectional area than the upper opening, and the through hole is a truncated hole; The utility model can also be formed by connecting the round-shaped hole with the cylindrical hole, and the step of forming the through hole in the connection between the circular-shaped hole and the cylindrical hole is provided with a step arm. There are many ways in which the cross-sectional area of the through hole is not equal, but is not limited thereto.

If the through hole is provided with a step armor, the through hole of the through hole is smaller than the upper opening cross-sectional area, and the through hole is rounded; when the liquid taking part dumps excess liquid It is possible to prevent the liquid in the test tube from being poured out from the through hole of the liquid take-up member.

In the above solution, the through hole has a cross section that is elliptical. The through hole B has an elliptical cross section. The through hole nail and/or the through hole B adopt an elliptical hole, which reduces the wall thickness and reduces the amount of material when the liquid guiding and the exhausting are not affected.

In the above solution, the channel assembly is further provided with an L-shaped sidewall, the L-shaped sidewall includes a lateral sidewall and a longitudinal sidewall, and the longitudinal sidewall is provided with at least one axial deformation groove, the deformation The slot is opened upward from the bottom end of the longitudinal side wall, and the longitudinal side wall is fixedly fixed with the annular side wall. The deformation groove can make the longitudinal side wall and the annular side wall closely match, so that the fit is stronger.

In the above solution, the lower outer edge of the channel assembly is circular.

In the above solution, the channel component is vertically disposed in the channel.

In the above solution, the common side wall extends downward to form a partition body, and the partition body is provided with an axial groove. In the production process of the liquid taking part, the through hole is reserved by presetting a core rod in the mold, and after the product is formed, the core rod is drawn out to form the through hole, and the groove is used for production and processing. In the process, the life of the mandrel is extended and the yield of the product is improved.

In the above solution, the annular side wall includes a portion A for collecting liquid and a portion B for joining, and the channel assembly is sealingly engaged with the portion B. The annular side wall may further include a C portion for preventing the test tube from being contaminated by external liquid when the liquid take-up member is mated with the test tube. Among them, the C part may be independent of the B part, or may include the B part, that is, the B part is part of the C part.

Wherein, the annular side wall is provided with at least one inward bend, and the bend is located above the B portion. The inner side surface of the annular side wall A portion may be a progressive curved surface. The progressive surface may be a tapered surface or a stepped surface or the like. When the progressive curved surface is the tapered surface, the angle between the annular side wall A and the axis is greater than 45 degrees and less than 75 degrees.

Wherein the C portion is formed by the B portion being bent outward and extending. The angle between the annular side wall of the C portion and the axis is greater than 15 degrees and less than 45 degrees.

The annular side wall may also be such that the inner diameter of the annular side wall gradually decreases from top to bottom.

In the above aspect, the wall thickness of the B portion is larger than the wall thickness of the A portion. The thicker wall thickness of the B portion is intended to increase the fastness of the annular side wall to the channel assembly.

The annular side wall cooperates with the channel assembly to form a liquid take-up member, and in order to reduce the leakage of the joint at the joint annular assembly and the channel assembly during liquid collection, the channel assembly and the A sealing structure is provided between the B portions.

Wherein, the sealing structure is an annular protrusion A provided on an outer side wall of the channel assembly or an annular protrusion B provided on an inner side wall of the annular side wall. The sealing structure may also be a connector disposed between the annular sidewall and the channel assembly.

In the above solution, the annular side wall can be deformed. The annular side wall is made of a flexible material, and the annular side wall made of a flexible material can be folded. That is, when the annular side wall is not mated with the channel assembly, the annular side wall is folded; when the annular side wall is engaged with the channel assembly, the annular side wall is expanded. Wherein the channel is deformed as the annular side wall is deformed.

In the above solution, the liquid take-up member is made of at least two kinds of density materials, and the annular side wall is made of a first density material such as paper, soft plastic or the like. The channel assembly is prepared using a second density material. In the present invention, the annular side wall and the channel assembly can be made of different materials, the annular side wall can be prepared by using a flexible material, and the channel assembly is prepared by using a hard material, which greatly reduces the cost of the mold and the raw material, and improves the production efficiency.

In the above solution, the thickness of the common side wall is greater than 0.5 mm and less than 2.5 mm.

In the above solution, the channel assembly is provided with a handle.

In the above solution, a limiting structure is further provided at the insertion of the channel assembly and the annular sidewall, and the limiting structure is used to define the depth at which the channel component is inserted. The limiting structure may be an annular protrusion, a shoulder or the like, and the limiting structure is disposed on the annular side wall.

The beneficial effects of the invention are:

In the present invention, the annular side wall and the channel assembly can be made of different materials, the annular side wall can be prepared by using a flexible material, and the channel assembly is prepared by using a hard material, which greatly reduces the cost of the mold and the raw material, and improves the production efficiency.

The invention adopts a straight tubular exhaust passage, which reduces the preparation cost of the mold and improves the production efficiency by 30%.

The cross section of the exhaust passage of the invention is elliptical, and the cross section of the liquid guiding passage is elliptical, which can reduce the amount of materials while ensuring the smooth drainage of the liquid and the exhaust.

The invention adopts a straight tubular exhaust passage, which has a faster exhausting speed, and the test tube filled with the same capacity is shorter than the prior art.

DRAWINGS

1 is a schematic view of an annular sidewall of an embodiment of the present invention.

2 is a schematic diagram-1 of a channel assembly in accordance with an embodiment of the present invention.

3 is a schematic diagram-2 of a channel assembly according to an embodiment of the present invention.

4 is a schematic view of the annular side wall and the channel assembly in accordance with an embodiment of the present invention.

FIG. 5 is a schematic side view of an annular side wall according to an embodiment of the present invention.

FIG. 6 is a schematic diagram-3 of a channel assembly according to an embodiment of the present invention.

Figure 7 is a schematic view of a channel assembly-4 in accordance with one embodiment of the present invention.

FIG. 8 is a schematic diagram-5 of a channel assembly according to an embodiment of the present invention.

Figure 9 is a schematic view -6 of a channel assembly in accordance with one embodiment of the present invention.

Figure 10 is a schematic view -7 of a channel assembly in accordance with an embodiment of the present invention.

Figure 11 is a schematic view -8 of a channel assembly in accordance with one embodiment of the present invention.

Figure 12 is a schematic view -9 of a channel assembly in accordance with one embodiment of the present invention.

Figure 13 is a schematic view-10 of a channel assembly in accordance with one embodiment of the present invention.

Figure 14 is a schematic side view of an annular side wall-2 according to an embodiment of the present invention.

Figure 15 is a schematic view -11 of a channel assembly in accordance with an embodiment of the present invention.

Figure 16 is a schematic view -1 of the annular side wall of the present invention mated with the channel assembly.

Figure 17 is a schematic view - 2 of the annular side wall of the present invention mated with the channel assembly.

among them,

100 take liquid parts,

1 annular side wall, 11 channels, 12 channel upper part, 13 channel lower part, 14 lower exit, 15 bend, 16 inner side,

2-channel assembly, 21 common side wall, 22 partition body, 22a partition body bottom end, 221 groove armor,

23 through hole B, opening under 23a, opening B on 23b, upper part of 23c through hole B, lower part of 23d through hole B, 230 step B,

24 through hole A, open under 24a, open on 24b, upper part of 24c through hole B, lower part of 24d through hole, 240 step A,

25 handles, 27 outer side walls,

28L side wall, 281 lateral side wall, 282 longitudinal side wall, 283 deformation groove,

41 ring-shaped raised armor, 42 ring-shaped raised arm B,

5 blocking body, 51 blocking the side wall,

61 cylindrical hole, 62 round table hole, 63 elliptical column hole A, 64 elliptical column hole B, 65 elliptical column hole C, 66 elliptical column hole Ding.

detailed description

The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited by the specific embodiments.

Embodiment 1: The present invention will be further described below with reference to FIGS. 1 to 4.

A liquid take-up member for a closed body fluid retainer includes an annular side wall 1 and a channel assembly 2.

The annular side wall 1 includes a portion A for collecting liquid, a portion B for connection, and a portion C for preventing external liquid contamination from cooperating with the liquid take-up member. The C part and the B part may be independent, and the C part may include the B part, that is, the B part is part of the C part.

The annular side wall 1 encloses a channel 11 that is vertically disposed within the channel 11 and that is in sealing engagement with the lower portion 13 of the channel. That is, the channel assembly 2 is in sealing engagement with the B portion of the annular side wall 1.

The channel assembly 2 is provided with an axial through hole 24 for exhaust and a through hole B 23 for liquid conduction. The through hole 24 and the through hole B 23 are not in communication with each other. The through hole 24 and the through hole B have a common side wall 21. The common side wall 21 has a thickness of 0.6 mm. The common side wall 21 extends downward to form a partition body 22. The channel assembly 2 is provided with an L-shaped side wall 28. The L-shaped side wall 28 includes a lateral side wall 281 and a longitudinal side wall 282. The longitudinal side wall 282 is provided with four axial deformation grooves 283, and the deformation groove 283 is from the longitudinal side wall. The bottom of the 282 is opened upwards. The lower outer edge of the channel assembly 2 is circular.

From the bottom end 22a of the partition body, the partition body 22 is provided with an axial groove 221.

The upper opening arm 24b of the through hole arm is higher than the upper opening Bb of the through hole B. Common side wall 21 is located The lower part 24d of the through hole.

The through hole 24 is a straight hole. The axis of the through hole 24 is parallel to the axis of the through hole B23. The through hole 24 and the through hole B are parallel to the axis in the height range of the common side wall 21.

The minimum area of the through hole B 23 is 12 mm ² ; the minimum area of the through hole 24 is 8 mm ² .

The channel assembly 2 is provided with a handle 25. The handle 25 is integral with the channel assembly 2.

The channel assembly 2 is mated with the annular side wall 1 and the longitudinal side wall 282 is mated with the inner side of the annular side wall 1.

When the channel assembly 2 is not mated with the annular side wall 1, the annular side wall 1 may be deformed in the form of a fold or channel collapse, or the channel formed by the annular side wall 1 may be in a distracted state. When the channel assembly 2 is mated with the annular side wall 1, the annular side wall 1 is in the expanded state. When the liquid take-up member collects the liquid, it is preferable that the annular side wall 1 is in a fully expanded state.

Embodiment 2: The present invention will be further described below with reference to FIGS. 5, 8, 15, and 16.

The annular side wall 1 includes a portion A for collecting liquid, a portion B for connection, and a portion C for holding a tube for cooperating with the liquid take-up member to prevent external liquid contamination. Part A, Part B and Part C are integrated. The annular side wall 1 is provided with an inward bend 15 and the bend 15 is located above the B portion.

The annular side wall 1 encloses a channel 11. The lower outer edge of the channel assembly 2 is circular. The channel assembly 2 is vertically disposed within the channel 11, the channel assembly 2 is mated with the annular side wall 1, and the annular side wall 1 is in sealing engagement with the lower portion 13 of the channel. That is, the channel assembly 2 is in sealing engagement with the B portion of the annular side wall 1.

A sealing structure is disposed between the channel assembly 2 and the B portion of the annular side wall 1. The sealing structure is an annular protrusion B 42 disposed on the inner side wall of the annular side wall 1. The annular projection B 42 is in tight engagement with the channel assembly 2.

The channel assembly 2 is provided with an axial through hole 24 for exhaust and a through hole B 23 for liquid conduction. The through hole 24 and the through hole B 23 are not in communication with each other. The through hole 24 and the through hole B have a common side wall 21. The common side wall 21 extends downward to form a partition body 22. From the bottom end 22a of the partition body, the partition body 22 is provided with an axial groove 221.

The upper opening 24b of the through hole 24 is higher than the upper opening Bb of the through hole B23. The common side wall 21 is located at the lower portion 24d of the through hole.

The through hole 24 is formed by communicating between the upper cylindrical hole 61 and the lower circular hole 62. The axis of the through hole 24 is parallel to the axis of the through hole B23. The through hole 24 and the through hole B are parallel to the axis in the height range of the common side wall 21. The opening 24b of the through hole 24 is the minimum cross-sectional area of the through hole 24, and the minimum area of the through hole 24 is 4 mm ² .

The through hole B 23 is formed by connecting two elliptical column holes, the upper portion 23c of the through hole B is an elliptical column hole, the lower portion 23d of the through hole B is an elliptical column hole, and the upper portion 23c of the through hole B is connected with the lower portion 23d of the through hole B to form Step B230, the upper portion 23c of the through hole B has a cross-sectional area larger than the lower portion 23d of the through hole B. The minimum area of the through hole B 23 is 10 mm ² ;

When the channel assembly 2 is not mated with the annular side wall 1, the annular side wall 1 may be deformed in the form of folding or flattening the channel, or the channel formed by the annular side wall 1 may be in a distracted state. When the channel assembly 2 is mated with the annular side wall 1, the annular side wall 1 is in the expanded state. When the liquid take-up member collects the liquid, it is preferable that the annular side wall 1 is in a fully expanded state.

Wherein, the sealing fit can also be that, as shown in FIG. 1 and FIG. 6, the annular side wall 1 encloses the channel 11. The lower outer edge of the channel assembly 2 is circular. The channel assembly 2 is vertically disposed within the channel 11. The channel assembly 2 is provided with a sealing structure. The sealing structure is an annular protruding nail 41 provided on the outer side wall 27 of the channel assembly 2. The channel assembly 2 is mated with the annular side wall 1 and the annular side wall 1 and the lower part of the channel 13 sealed fit. That is, the channel assembly 2 is in sealing engagement with the B portion of the annular side wall 1.

Embodiment 3: The present invention will be further described below with reference to FIGS. 1, 7, and 17.

The channel assembly 2 is provided with an axial through hole 24 for exhaust and a through hole B 23 for liquid conduction. The through hole 24 and the through hole B 23 are not in communication with each other. The through hole 24 and the through hole B have a common side wall 21. The common side wall 21 has a thickness of 0.5 mm. The common side wall 21 extends downward to form a partition body 22. The lower outer edge of the channel assembly 2 is circular.

The upper opening arm 24b of the through hole arm is higher than the upper opening Bb of the through hole B. The common side wall 21 is located at the lower portion 24d of the through hole.

The through hole armhole 24 is formed by a straight hole and a slant hole, and the joint of the straight hole and the inclined hole is provided with a turning. The inclined hole is located above the straight hole, and the axis of the lower portion 24d of the through hole is parallel to the axis of the through hole B23. That is, the through hole 24 and the through hole B 23 are parallel to the axis in the height range of the common side wall 21.

The minimum area of the through hole B 23 is 13 mm ² ; the minimum area of the through hole 24 is 9 mm ² .

When the channel assembly 2 is not mated with the annular side wall 1, the annular side wall 1 may be folded, and the annular side wall 1 may also be deformed in the form of channel flattening or the like, or the channel formed by the annular side wall 1 may be opened. state. When the channel assembly 2 is mated with the annular side wall 1, the annular side wall 1 is in the expanded state. When the liquid take-up member collects the liquid, it is preferable that the annular side wall 1 is in a fully expanded state.

In the above solution, the channel component 2 can also be in the following form:

As can be seen from FIG. 9, the through hole B 23 is formed by connecting two elliptical cylindrical holes (63, 64) disposed above and below, and the connection between the elliptical cylindrical hole 64 and the elliptical cylindrical hole 63 forms a step B 230, and the upper elliptical cylindrical hole 64 is located. The cross sectional area is smaller than the cross sectional area of the elliptical cylindrical hole 63 located below. The minimum cross-sectional area of the through hole B 23 is the cross-sectional area at the upper opening B 23b.

The upper portion 24c of the through hole of the through hole 24 is an elliptical cylindrical hole, and the lower portion 24d of the through hole is an inverted circular shaped hole. The axis of the through hole 24 is parallel to the axis of the through hole B23. The through hole 24 and the through hole B are parallel to the axis in the height range of the common side wall 21. The minimum cross-sectional area of the through hole 24 is the cross-sectional area at the lower opening 24a.

The minimum cross-sectional area of the through hole 24 is larger than the minimum cross-sectional area of the through hole B23.

The through hole 24 for exhaust is a straight tubular shape.

As can be seen from FIG. 10, the through hole B 23 is formed by connecting two elliptical cylindrical holes (63, 64) disposed above and below, and the connection between the elliptical cylindrical hole 64 and the elliptical cylindrical hole 63 forms a step B 230, and the elliptical cylindrical hole 64 is located above. The cross sectional area is smaller than the cross sectional area of the elliptical cylindrical hole 63 located below. The minimum cross-sectional area of the through hole B 23 is the cross-sectional area at the upper opening B 23b.

The through hole 24 is formed by connecting two elliptical cylindrical holes (65, 66) arranged at the upper and lower sides, and the joint of the elliptical cylindrical hole 65 and the elliptical cylindrical hole 66 forms a step a 240, and the cross-sectional area of the upper elliptical cylindrical hole 65 is larger than The cross-sectional area of the elliptical cylinder hole 66 located below. The minimum cross-sectional area of the through hole 24 is the cross-sectional area at the lower opening 24a.

The axis of the through hole 24 is parallel to the axis of the through hole B23. The through hole 24 and the through hole B are parallel to the axis in the height range of the common side wall 21.

The through hole 24 for exhaust is a straight tubular shape.

As can be seen from FIG. 11, the through hole B 23 is formed by two elliptical column holes, and the cross-sectional area of the upper portion 23c of the through hole B is smaller than the cross-sectional area of the lower portion 23d of the through hole B. A step B 230 is formed at the junction of the upper portion 23c of the through hole B and the lower portion 23d of the through hole B. The minimum cross-sectional area of through hole B 23 is the upper opening B The cross-sectional area at 23b.

The through hole 24 is formed by connecting two elliptical cylindrical holes (65, 66) arranged at the upper and lower sides, and the joint of the elliptical cylindrical hole 65 and the elliptical cylindrical hole 66 forms a step arm 240, and the cross-sectional area of the elliptical cylindrical hole 65 located above is smaller than The cross-sectional area of the elliptical cylinder hole 66 located below. The minimum cross-sectional area of the through hole 24 is the cross-sectional area at the upper opening 24b.

The through hole 24 for exhaust is a straight tubular shape.

As can be seen from FIG. 12, the through hole B 23 is formed by two elliptical column holes, and the cross-sectional area of the upper portion 23c of the through hole B is smaller than the cross-sectional area of the lower portion 23d of the through hole B. A step B 230 is formed at the junction of the upper portion 23c of the through hole B and the lower portion 23d of the through hole B. The minimum cross-sectional area of the through hole B 23 is the cross-sectional area at the upper opening B 23b.

The through hole 24 for exhaust is a straight tubular shape.

As can be seen from FIG. 13, the through hole B 23 is formed by connecting two elliptical cylindrical holes (63, 64) disposed above and below, and the connection between the elliptical cylindrical hole 64 and the elliptical cylindrical hole 63 forms a step B 230, and the elliptical cylindrical hole 64 located above The cross sectional area is smaller than the cross sectional area of the elliptical cylindrical hole 63 located below. The minimum cross-sectional area of the through hole B 23 is the cross-sectional area at the upper opening B 23b.

The through hole 24 is formed by connecting the elliptical post hole 65 and the truncated hole 62, and the elliptical post hole 65 is located above the truncated hole 62. The junction of the elliptical cylinder hole 65 and the elliptical cylinder hole 66 forms a step armor 240, and the cross-sectional area of the elliptical cylinder hole 65 located above is larger than the cross-sectional area of the elliptical cylinder hole 66 located below. The minimum cross-sectional area of the through hole 24 is the cross-sectional area at the upper opening 24b.

The through hole 24 for exhaust is a straight tubular shape.

In the above solution, the annular side wall 1 can also be in the following form:

As can be seen from Fig. 14, the annular side wall 1 includes a portion A for collecting liquid, a portion B for connection, and a portion C for preventing external liquid contamination from cooperating with the liquid take-up member. Part C contains Part B, that is, Part B is part of Part C. A bend 15 is provided at the junction of the A portion and the C portion of the annular side wall 1. The inner side surface of the A portion of the annular side wall 1 is a tapered surface, and the annular side wall portion A has an angle of 50 with the axis.

Claims

A liquid take-up member for a closed body fluid indweller, comprising an annular side wall, the annular side wall enclosing a channel, characterized in that further comprising a channel assembly, the channel assembly and the annular side wall are separately matched, A channel assembly is disposed within the channel and at a lower portion of the channel, the channel assembly being provided with a through hole.
The liquid take-off member for a sealed body fluid indwelling device according to claim 1, wherein the channel assembly is provided with two through holes that are not communicated with each other, and the two through holes have a common side wall.
The liquid take-off member for a sealed body fluid indwelling device according to claim 2, wherein the common side wall extends downward to form a partition body, and the partition body is provided with an axial groove arm.
The liquid take-off member for a sealed body fluid indwelling device according to claim 2, wherein the two mutually unobstructed through holes are a through hole arm and a through hole B, and the upper opening arm of the through hole arm is higher than the The opening B of the through hole B.
The liquid take-off member for a sealed body fluid indwelling device according to claim 4, wherein the length of the through hole is larger than the length of the through hole B.
The liquid take-off member for a sealed body fluid indwelling device according to claim 4, wherein the common side wall is located at a lower portion of the through hole.
The liquid take-off member for a sealed body fluid indwelling device according to claim 6, wherein at least a part of the through hole nails are parallel to the through holes B.
The liquid take-off member for a sealed body fluid indwelling device according to claim 7, wherein the two through holes are parallel to each other on a common side wall segment axis.
The liquid take-off member for a sealed body fluid indwelling device according to claim 8, wherein the through hole is a straight hole.
The liquid take-up member for a sealed body fluid indwelling device according to claim 8, wherein the minimum cross-sectional area of the through-hole hole is greater than 3 mm 2 and less than or equal to 15 mm 2 ; and the minimum cross-sectional area of the through-hole B is greater than 3 mm 2 is less than or equal to 15mm 2 .
The liquid take-off member for a sealed body fluid indwelling device according to claim 10, wherein a minimum cross-sectional area of the through hole B is larger than a minimum cross-sectional area of the through hole.
A liquid take-off member for a sealed body fluid indwelling device according to claim 8, wherein said channel assembly further comprises an L-shaped side wall, said L-shaped side wall comprising a lateral side wall and a longitudinal side wall, said longitudinal side The wall is provided with at least one axial deformation groove, and the deformation groove is opened upward from the bottom end of the longitudinal side wall, and the longitudinal side wall is fixedly fixed with the annular side wall.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the through hole has a sectional area that is not equal.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein a lower cross-sectional area of the through hole B is larger than an upper cross-sectional area.
The liquid take-off member for a sealed body fluid indwelling device according to claim 14, wherein the through hole B is provided with a step B.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein the through hole has a cross-sectional area that is not equal.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein the through hole is provided with a step armor.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein the through hole has a lower opening cross-sectional area smaller than the upper opening cross-sectional area.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein the through hole has a lower opening cross-sectional area larger than the upper opening cross-sectional area.
The liquid take-off member for a sealed body fluid indwelling device according to claim 19, wherein the through hole is provided with a step arm.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein a lower outer edge of the channel assembly is circular.
The liquid take-off member for a sealed body fluid indwelling device according to claim 13, wherein the channel assembly is vertically disposed in the channel.
A liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the annular side wall includes a portion A for collecting the liquid and a portion B for joining, the channel assembly and the Part B is sealed.
The liquid take-off member for a sealed body fluid indwelling device according to claim 23, wherein the annular side wall further comprises a C portion for preventing the test tube from being contaminated by external liquid when the liquid take-up member is engaged with the test tube.
The liquid take-off member for a sealed body fluid indwelling device according to claim 24, wherein the annular side wall is provided with at least one inward bend, and the bend is located above the B portion.
The liquid take-off member for a sealed body fluid indwelling device according to claim 24, wherein the inner side surface of the annular side wall portion A is a progressive curved surface.
The liquid take-off member for a sealed body fluid indwelling device according to claim 26, wherein the progressive curved surface is a tapered surface.
The liquid take-off member for a sealed body fluid indwelling device according to claim 27, wherein an angle between the annular side wall portion A and the axis is greater than 45 degrees and less than 75 degrees.
The liquid take-off member for a sealed body fluid indwelling device according to claim 26, wherein The progressive surface is a stepped surface.
The liquid-removing member for a sealed body fluid indwelling device according to claim 24, wherein the C portion is formed by being bent outward from the B portion.
The liquid take-off member for a sealed body fluid indwelling device according to claim 30, wherein an angle between the annular side wall of the C portion and the axis is greater than 15 degrees and less than 45 degrees.
The liquid take-off member for a sealed body fluid indwelling device according to claim 23, wherein an inner diameter of said annular side wall gradually decreases from top to bottom.
The liquid take-off member for a sealed body fluid indwelling device according to claim 23, wherein the wall thickness of the B portion is larger than the wall thickness of the A portion.
The liquid take-off member for a sealed body fluid indwelling device according to claim 24, wherein a sealing structure is provided between the channel assembly and the B portion.
The liquid-removing member for a sealed body fluid indwelling device according to claim 34, wherein the sealing structure is an annular convex nail provided on an outer side wall of the channel assembly or an inner side wall of the annular side wall Some ring-shaped protrusions B.
A liquid take-off member for a sealed body fluid indwelling device according to claim 34, wherein said sealing structure is a connecting member disposed between said annular side wall and said channel assembly.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the annular side wall is deformable.
A liquid take-off member for a sealed body fluid indwelling device according to claim 37, wherein said passage is deformed in accordance with deformation of said annular side wall.
The liquid take-off member for a sealed body fluid indwelling device according to claim 37, wherein when the annular side wall is not engaged with the channel assembly, the annular side wall is folded; when the annular side wall is When the channel assembly is mated, the annular side wall is expanded.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the liquid take-up member is made of at least two kinds of density materials, and the annular side wall is made of a first density material, The channel assembly is prepared using a second density material.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the common side wall has a thickness of more than 0.5 mm and less than 2.5 mm.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the channel assembly is provided with a handle.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein the through hole has an elliptical cross section.
A liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, The feature is that the through hole B has an elliptical cross section.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, wherein an axial blind hole is provided in the common side wall.
The liquid take-off member for a sealed body fluid indwelling device according to any one of claims 1 to 12, characterized in that a limiting structure is further provided at the insertion and fitting of the channel assembly and the annular side wall.