CN205642924U - Disposable closed body fluid indwelling device - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, especially, relate to disposable airtight body fluid indwelling device, including liquid storage pipe and liquid guiding device, the liquid storage pipe includes opening and stock solution cavity, liquid guiding device is equipped with drain channel and annular lateral wall, the one end of drain channel is the inlet, the other end is the liquid outlet, still include check valve and fixing device piece, the check valve includes hollow valve cap and the valve of pin joint on the valve cap inner wall, the inner wall of drain channel has set firmly the push pedal, fixing device piece detachably pegs graft and is used for restricting the rotation and the sealed drain channel of liquid guiding device in the drain channel, liquid guiding device detachably installs in valve cap upper portion, liquid storage pipe detachably installs in the valve cap lower part, the push pedal overlaps or overlaps completely with the valve part, take out fixing device piece, rotate liquid guiding device, the push pedal pushes down the valve with sealing valve cap. The structure is simplified, the cost is saved, the operation is simple and sanitary, and the use by patients is facilitated.

Description

Disposable closed body fluid indwelling device

technical field

The utility model relates to the technical field of medical instruments, in particular to a disposable airtight body fluid indwelling device.

Background technique

The results of urinalysis provide information for the diagnosis of many diseases and for judging the current health status of the subjects. Therefore, various hospitals and test centers routinely perform urine tests on a large number of patients. Under normal circumstances, the subject needs to go to the bathroom to collect a urine sample in a paper cup, and then put the paper cup on the designated shelf in the test room or pour the urine into a designated test tube, and then send it to the laboratory for urine analysis.

There are many defects in the above-mentioned method of collecting urine samples. For example, it is difficult for some testees to discharge urine into the urine cup, and it is easy to get urine on hands or clothes. This collection method is unhygienic; If you have a serious infectious disease and your body is inconvenient to move, you need medical staff or family members to help you collect urine. If the urine sample is splashed or leaked during the sampling process, it is easy for the medical staff or family members to suffer from infectious diseases and affect the medical care. The health of personnel or family members has brought a lot of trouble; and the collected urine samples are placed open, during the detection process, the pungent odor of the urine samples will cause serious pollution to the environment, affecting the working environment and work efficiency of medical staff, and the installation A good urine paper cup will take up a lot of space, and a large space needs to be reserved for storing the urine samples to be tested, which is a waste of resources.

Therefore, some leak-proof devices that are specially used to collect urine have gradually appeared on the market, such as Chinese patent CN203916684U, which is called a self-closing leak-proof quantitative liquid collection device, a self-closing leak-proof quantitative liquid collection device , including a liquid storage tube, a leak-proof part and a liquid-taking part; the liquid storage tube includes an opening and a liquid storage chamber; the leak-proof part is provided with at least one axial through hole; the leak-proof part is located at the The opening part; the liquid-taking part includes a liquid-guiding channel and an exhaust channel; the liquid-taking part cooperates with the leak-proof part, on the one hand to prevent leakage through the leak-proof part, and on the other hand to solve the problem through the exhaust channel. The technical problems of clogging and unsmooth drainage are prone to occur during fluid drainage.

The structure of the above-mentioned device has the following problems. When the amount of liquid taken is large or the waiting time is long, it is necessary to use a blocking body to block the liquid storage pipe. The blocking body is generally a separate component and is located at the bottom of the liquid storage pipe. Therefore, it is necessary to There are at least three steps to complete the liquid extraction process. First, collect the liquid; then separate the liquid extraction part, and finally use the blocking body to block the liquid storage tube. When removing the blocking body, if the force is too large, the urine may leak Or if it is spilled, if the force is too small, it may not be removed, and it will increase the number of components and increase the production cost; in addition, for male users, after the liquid collection step is completed, the liquid collection device is usually placed on the sidelines, Then put on the underwear first, then separate the liquid-taking parts, and finally block the liquid-taking tube. When the liquid-taking device is placed obliquely, the urine in the liquid-taking tube may leak out from the back; since the liquid-taking device is a disposable product, its The quantity used is huge. How to simplify the structure, simplify the operation steps, improve the user experience, reduce the cost, and achieve the same technical effect at the same time is an urgent problem to be solved.

In order to solve the above problems, the applicant applied for a disposable liquid collection device on 2015.8.14 with the application number 201510500980.6 for an invention patent, including a liquid storage tube and a liquid guide device. The liquid storage tube includes an opening and a liquid storage chamber The liquid guiding device is provided with a liquid guiding channel and an annular side wall. One end of the liquid guiding channel is a liquid inlet, and the other end is a liquid outlet. It also includes a one-way valve. The one-way valve includes a hollow valve cover and a pivot joint. The valve on the inner wall of the valve cover, the inner wall of the liquid guide channel is fixed with a push plate, the liquid guide device is detachably installed on the upper part of the valve cover, the liquid storage tube is detachably installed on the lower part of the valve cover, and the push plate is connected with the valve cover. The above valves overlap partially or completely, turn the liquid diversion device, the push plate pushes the valve down to close the valve cover, the urine is collected in the liquid storage tube, and the one-way valve on the liquid storage tube prevents the leakage and backflow of urine. The structure is simplified, the cost is saved, the operation is simple and hygienic, and it is convenient for patients to use; with the popularization and application of the product, customers find that the above structure still needs improvement: for example, the above-mentioned disposable liquid collection device has no seal, and it may Finally, before the liquid is taken, the liquid storage tube is polluted, such as bacteria, dust and other impurities entering the liquid storage tube, which will affect the test results; after opening the package, if the user rotates the liquid guide device before taking the liquid, push The plate pushes the valve down to close the valve cover, and the valve cover must not be easy to return to its original position, affecting normal use.

Therefore, there is an urgent need to provide a disposable airtight body fluid indweller to solve the deficiencies in the prior art.

Utility model content

In view of this, the utility model provides a disposable airtight body fluid indwelling device for the deficiencies of the prior art. The urine is collected in the liquid storage tube, and the leakage and backflow of the urine are prevented through the one-way valve structure without using a blocking body. The liquid will not splash, prevent secondary infection, and the smell will not spread. When testing, the liquid storage tube is separated from the one-way valve, and the liquid diversion device is directly discarded, which simplifies the structure, saves costs, and is easy to operate. Experience; by setting the fixing device to limit the rotation of the liquid guide device and seal the liquid guide channel, on the one hand, it can prevent the user from unintentionally rotating the liquid guide device so that the push plate pushes the valve down to close the valve cover, resulting in difficulty in reset. It affects normal use; on the other hand, it can also seal the fluid guide channel to prevent bacteria, dust and other impurities from entering the fluid storage tube, and ensure that the body fluid indwelling device is in a sterile and sealed state.

In order to achieve the above object, the utility model adopts the following technical solutions:

A disposable airtight body fluid indweller includes a liquid storage tube and a liquid guide device, the liquid storage tube includes an opening and a liquid storage cavity, the liquid guide device is provided with a liquid guide channel and an annular side wall, the guide One end of the liquid channel is a liquid inlet, the other end is a liquid outlet, and it also includes a one-way valve and a fixing device. The one-way valve includes a hollow valve cover and a valve pivotally connected to the inner wall of the valve cover. The inner wall of the liquid guiding channel is fixed with a push plate, and the fixing device piece is detachably plugged into the liquid guiding channel to limit the rotation of the liquid guiding device and seal the liquid guiding channel. The liquid guide device is detachably installed on the upper part of the valve cover, the liquid storage tube is detachably installed on the lower part of the valve cover, the push plate overlaps with the valve partially or completely, and the fixing device is taken out sheet, rotate the liquid guide device, and the push plate pushes the valve down to close the valve cover.

Preferably, the cross-sectional area of the upper part of the valve cover is larger than that of the lower part of the valve cover, the upper part of the valve cover is in the shape of a hollow cylinder, and the lower part of the valve cover is also in the shape of a hollow cylinder, The outer wall of the liquid guide channel is tightly fitted or threaded to the inner wall of the upper part of the valve cover, the opening of the liquid storage pipe is tightly fitted or threaded to the outer wall of the lower part of the valve cover, and the valve is pivotally connected to the valve cover. On the inner wall of the lower part of the valve cover.

Preferably, the fixing device piece includes a handle, an annular cover and a limiting part, the handle is fixed above the annular cover, and the limiting part is fixed on the annular cover Below the body, the limiting part extends into the liquid guiding channel, and the limiting part clamps the valve and the push plate.

Preferably, the outer surface of the upper part of the valve cover is provided with a rough surface.

Preferably, the inner wall of the lower part of the valve cover is oppositely provided with a pair of pivot holes, and the valve includes an annular valve body and a pair of pivot shafts arranged on the side of the valve body, and the pivot shafts extend into the valve body. In the comb hole, the valve body can rotate around the pivot shaft in the pivot hole.

Preferably, the liquid guiding device is also provided with a handle and a liquid guiding nozzle, and the liquid guiding nozzle is in the shape of a spout.

Preferably, the liquid storage tube is provided with a capacity scale, the diameter of the liquid storage tube is between 8-22 mm, the height is between 60-150 mm, and the annular side wall of the liquid guiding device is the largest The diameter is between 50-150mm, and the diameter of the liquid inlet is between 8-16mm.

Preferably, the liquid storage tube, the liquid guiding device, the one-way valve and/or the fixing device piece are made of plastic.

Preferably, the plastic is selected from any one of PE plastic, TPE plastic, PS plastic, PP plastic or AS plastic, PC plastic or ABS plastic.

The utility model discloses a disposable airtight body fluid indwelling device, which comprises a liquid storage tube and a liquid guiding device. The liquid storage tube includes an opening and a liquid storage cavity. One end of the liquid guide channel is a liquid inlet, the other end is a liquid outlet, and it also includes a one-way valve and a fixing device piece. The one-way valve includes a hollow valve cover and is pivotally connected to the inner wall of the valve cover. The valve on the liquid guide channel is fixed with a push plate on the inner wall, and the fixing device piece is detachably plugged into the liquid guide channel to limit the rotation of the liquid guide device and seal the guide The liquid channel, the liquid guiding device is detachably installed on the upper part of the valve cover, the liquid storage tube is detachably installed on the lower part of the valve cover, the push plate overlaps partially or completely with the valve, Take out the fixing device piece, turn the liquid guiding device, and the push plate pushes down the valve to close the valve cover. Compared with the prior art, the disposable airtight body fluid indweller of the present invention has the following beneficial effects:

1) Take the liquid in one step, pull out the fixing device piece on the liquid guiding channel, the urine flows from the liquid inlet of the liquid guiding device to the liquid outlet, from the liquid outlet to the one-way valve, and enters through the one-way valve When the liquid storage tube is full of urine, hold the one-way valve and turn the liquid diversion device, the push plate on the inner wall of the liquid diversion channel will push the valve down to seal the valve cover , and then pour out the excess urine on the liquid diversion device, and the liquid diversion device can be discarded directly; the valve cover can prevent the backflow of urine and prevent secondary infection, eliminating the need to block the liquid storage tube. Avoid contact with hands and urine, simple and hygienic operation, more convenient to take liquid, and easy for patients to use;

2) The fixing device piece can also seal the liquid guide channel, prevent bacteria, dust and other impurities from entering the liquid storage tube, ensure that the body fluid indwelling device is in a sterile and sealed state, and prevent the user from accidentally rotating the liquid guide device so that the push plate will The valve is pushed down to close the valve cover, making it difficult to reset.

3) The structure is greatly simplified, and there is no need to use a blocking body. The disposable airtight body fluid indweller of the present invention is composed of four parts: a liquid storage tube, a liquid diversion device, a fixing device piece and a one-way valve, and has a simple structure;

4) The through hole of the liquid diversion device is fully opened, and the diversion is smooth, so that the liquid can flow down smoothly without blockage;

5) Easy to use, whether it is a man or a woman, after taking the liquid, close the valve, then pull out the liquid backflow device and discard it, which is more hygienic and humane;

6) The scope of application is wider. When there are many urine samples, it needs to wait for a long time. At this time, the liquid storage tube of the present utility model can be directly inserted on the test tube rack of the laboratory together with the check valve to wait for detection. On the one hand, it can be Avoid leakage, spilling, confusion or cross-contamination that may occur when urine samples are exposed for a long time; on the other hand, it can avoid the diffusion of urine sample odor and reduce the impact on the working environment of testing personnel;

7) It is convenient for the inspector to take the liquid. Since the valve is pivotally connected to the inner wall of the valve cover, the inspector can directly squeeze the valve with the suction pipe and other liquid-taking equipment to make the valve rotate. The upper part of the liquid storage pipe is opened, and then directly inserted into the liquid storage pipe Take the liquid to avoid the contact between the inspector and the urine, which is more hygienic and safe;

8) The cost is greatly reduced. Compared with the existing disposable airtight body fluid indwelling device, the cost can be reduced by 30-50%, which is suitable for large-scale industrial production and application.

Description of drawings

Fig. 1 is an exploded view of the disposable airtight body fluid indwelling device of the present invention.

Fig. 2 is a closed state view of the disposable airtight body fluid indweller of the present invention.

Fig. 3 is a state diagram of taking out the fixing device piece from the disposable airtight body fluid indweller of the present invention.

Fig. 4 is a closed state view of the disposable airtight body fluid indwelling device of the present invention after taking liquid.

Fig. 5 is a storage state diagram of the disposable airtight body fluid indweller of the present invention after taking liquid.

Fig. 6 is a schematic structural view of the liquid guiding device of the present invention.

Fig. 7 is a top view of the valve cover of the present invention.

Fig. 8 is a schematic structural view of the valve cover of the present invention.

Fig. 9 is a cross-sectional view of the valve cover of the present invention.

Fig. 10 is a structural schematic diagram of the valve of the present invention.

Fig. 11 is a schematic structural view of the fixing device sheet of the present invention.

Fig. 12 is a top view of the liquid guiding device of the present invention.

Fig. 13 is a perspective view of the liquid guiding device of the present invention.

detailed description

Below in conjunction with embodiment and accompanying drawing, the utility model is further described, and this is a preferred embodiment of the utility model.

Example 1

As shown in Figures 1-13, the disposable airtight body fluid indweller includes a liquid storage tube 1 and a liquid flow guide device 2, the liquid storage tube 1 includes an opening 11 and a liquid storage cavity 12, and the liquid flow guide The device 2 is provided with a liquid guide channel 21 and an annular side wall 22. One end of the liquid guide channel 21 is a liquid inlet 211, and the other end is a liquid outlet 212. It also includes a one-way valve 3 and a fixing device piece 4. The one-way valve 3 includes a hollow valve cover 31 and a valve 32 pivotally connected to the inner wall of the valve cover 31, the inner wall of the liquid guide channel 21 is fixed with a push plate 214, and the fixing device piece 4 is detachably plugged in In the liquid guide channel 21, it is used to limit the rotation of the liquid guide device 2 and seal the liquid guide channel 21. The liquid guide device 2 is detachably installed on the upper part 311 of the valve cover 31, so The liquid storage pipe 1 is detachably mounted on the lower part 312 of the valve cover 31, the push plate 214 partially overlaps or completely overlaps the valve 32, the fixing device piece 4 is taken out, and the liquid guiding device 2 is rotated , the push plate 214 pushes down the valve 32 to close the valve cover 31 .

As shown in Figure 2, the fixing device piece 4 is detachably plugged into the liquid guide channel 21, on the one hand, it can prevent the user from rotating the liquid guide device 2 unintentionally before taking the liquid, so that the push plate 214 will The valve 32 is pushed down to close the valve cover 31, causing difficulty in reset and affecting normal use; on the other hand, it can also seal the fluid guide channel 21 to prevent impurities such as bacteria and dust from entering the fluid storage tube 1, ensuring that the body fluid indwelling device is in the Sterile sealed state.

As shown in accompanying drawings 3-4, the user needs to pull out the fixing device piece 4 before taking the liquid, and the urine flows from the liquid inlet 211 of the liquid guiding device 2 to the liquid outlet 212, and flows through the liquid outlet 212. To the one-way valve 3, enter the liquid storage tube 1 through the one-way valve 3, when the urine is full of the liquid diversion device 2, hold the one-way valve 3, turn the liquid diversion device 2 in any direction, and the liquid diversion The push plate 214 on the inner wall of the channel 21 pushes down the valve 32, seals the valve cover 31, and then pours out the excess urine on the liquid diversion device 2, and the liquid diversion device 2 can be discarded directly. The valve cover 31 can prevent the backflow of urine, prevent secondary infection, save the step of blocking the liquid storage pipe 1, avoid contact with hands and urine, simple and hygienic operation, more convenient liquid extraction, and convenient for patients to use;

As shown in accompanying drawing 3, at the beginning of the assembly of the liquid guiding device 2 and the one-way valve 3, the push plate 214 partially overlaps or completely overlaps the valve 32, and most preferably the valve 32 is in the vertical direction. On the upper side, it is in a parallel position with the push plate 214, and there is a certain gap between the two. When the liquid guiding device 2 is rotated, the push plate 214 rotates one circle, and the push plate 214 rotates from the parallel position to the position of mutual contact. , slowly push down the valve 32 until they are perpendicular to each other, and the valve cover 31 is completely blocked by the valve 32.

When there are many urine samples, you need to wait for a long time. You can directly insert the liquid storage tube together with the one-way valve on the test tube rack in the laboratory to wait for detection. On the one hand, it can avoid possible leakage and spilling of urine samples for a long time , confusion or cross-contamination, etc.; on the other hand, it can avoid the spread of urine odor and reduce the impact on the working environment of testing personnel;

As shown in Figure 5, it is convenient for inspectors to take liquid. Since the valve 32 is pivotally connected to the inner wall of the valve cover 31, the inspector can directly squeeze the valve 32 with a suction pipe or other liquid-taking equipment to rotate the valve 32, and the upper part of the liquid storage pipe Open the opening, and then extend into the liquid storage tube to take the liquid directly, avoiding the contact between the inspector and the urine, which is more hygienic and safe;;

Preferably, the cross-sectional area of the upper part 311 of the valve cover is larger than that of the lower part 312 of the valve cover, the upper part 311 of the valve cover is in the shape of a hollow cylinder, and the lower part 312 of the valve cover is also hollow. Cylindrical shape, the outer wall of the liquid guiding channel 21 is tightly fitted or threaded with the inner wall of the upper part 311 of the valve cover, and the opening 11 of the liquid storage pipe 1 is tightly fitted or threaded with the outer wall of the lower part 312 of the valve cover. The valve 32 is pivotally connected to the inner wall of the lower part 312 of the valve cover. The liquid storage pipe 1, the liquid diversion device 2 and the one-way valve 3 are all connected tightly, which can ensure a firm connection on the one hand and no leakage of urine, and on the other hand facilitate assembly and disassembly.

Preferably, the fixing device piece 4 includes a handle portion 41, an annular cover 42 and a limiting portion 43, the handle 41 is fixed above the annular cover 42, and the limiting portion 43 is fixed Located under the annular cover 42 , the limiting portion 43 extends into the liquid guiding channel 21 , and the limiting portion 43 clamps the valve 32 and the push plate 214 . The ring-shaped cover 42 can just seal the liquid-conducting channel 21, and the limit part 43 is provided with a bifurcation, which clamps the valve 32 and the push plate 214. Before use, the ring-shaped cover 42 can play a sealing role , to prevent bacteria, dust and other impurities from entering the liquid storage tube 1, to ensure that the body fluid indwelling device is in a sterile and sealed state; and the limit part 43 can limit the rotation of the liquid diversion device 2. Just go out.

Preferably, the outer surface of the upper part 311 of the valve cover is provided with a rough surface 3113 . The frictional force is increased by the rough surface 3113, so that the user is not easy to slip during operation, and is convenient for the user to assemble and disassemble.

Preferably, a pair of pivot holes or pivot grooves 3121 are oppositely provided on the inner wall of the lower part of the valve cover 312, and the valve 32 includes an annular valve body 321 and a pair of pivot holes on the side of the valve body 321 Rotating shaft 322, the pivot shaft 322 extends into the pivot hole or pivot slot 3121, the valve body 321 can rotate around the pivot shaft 32 in the pivot hole or pivot slot 3121, the valve body 321 closes the lower part 312 of the hollow valve cover to prevent backflow of urine;

Preferably, the cross-sectional area of the valve body 321 is greater than or equal to the same internal cross-sectional area of the valve cover lower part 312, so that the valve body 321 can completely block the cavity of the valve cover lower part 321 to prevent the leakage of urine. Backflow and leakage; because the valve body 321 is made of plastic material, the valve body 321 has a certain degree of elasticity, and when its cross-sectional area is slightly larger than the inner cross-sectional area of the lower part 312 of the valve cover, the sealing performance is better.

Preferably, the liquid guide device 2 is also provided with a handle 23 and a liquid guide nozzle 24, the liquid guide nozzle 24 is in the shape of a spout, and the user can hold it conveniently through the handle 23, and it is convenient to use the liquid guide nozzle 24. The excess urine is poured out smoothly, and the shape of the liquid guide nozzle is similar to the spout of a teapot, so as to ensure that when the excess urine is poured out, it will not be spilled on the outer surface of the annular side wall.

Preferably, the liquid storage tube 1 is provided with a capacity scale, and the diameter of the liquid storage tube 1 is between 8-22 mm, and the height is between 60-150 mm. Hospitals generally require a liquid storage tube 1 of uniform specifications, with a diameter of 12.7mm, a height of 99mm, and a capacity of 8ml. Five different scales of 1mL, 2.5mL, 5mL, 10mL, and 12mL are convenient for users to observe the amount of liquid taken; the maximum diameter of the annular side wall 22 of the liquid guide device 2 is between 50-150mm, and the liquid inlet The diameter of the port 211 is between 8-16 mm. The diameter of the liquid inlet 211 is usually about 15mm. The applicant found through experiments that when the liquid inlet is too small, urine will easily block the liquid inlet, so it is necessary to open an exhaust port; and when the liquid inlet reaches about 15mm or 15mm In the above case, there is no need for an exhaust channel or an exhaust port, and no blockage will occur. Therefore, it is preferably between 10-16mm.

Preferably, the liquid storage tube 1 , the liquid guiding device 2 , the one-way valve 3 and/or the fixing device piece 4 are made of plastic.

Preferably, the plastic is selected from any one of PE plastic, TPE plastic, PS plastic, PP plastic or AS plastic, PC plastic or ABS plastic. The above-mentioned plastics are very common, the processing technology is mature, and the disposable closed body fluid indweller of the present utility model has a simple structure, so the production cost can be greatly reduced. Compared with the cost of the existing disposable closed body fluid indweller, it can reduce 30- 50%.

Compared with the prior art, the disposable airtight body fluid indweller of the present invention has the following beneficial effects:

1) Take the liquid in one step, pull out the fixing device piece on the liquid guiding channel, the urine flows from the liquid inlet of the liquid guiding device to the liquid outlet, from the liquid outlet to the one-way valve, and enters through the one-way valve When the liquid storage tube is full of urine, hold the one-way valve and turn the liquid diversion device, the push plate on the inner wall of the liquid diversion channel will push the valve down to seal the valve cover , and then pour out the excess urine on the liquid diversion device, and the liquid diversion device can be discarded directly; the valve cover can prevent the backflow of urine and prevent secondary infection, eliminating the need to block the liquid storage tube. Avoid contact with hands and urine, simple and hygienic operation, more convenient to take liquid, and easy for patients to use;

2) The fixing device piece can also seal the liquid guide channel, prevent bacteria, dust and other impurities from entering the liquid storage tube, ensure that the body fluid indwelling device is in a sterile and sealed state, and prevent the user from accidentally rotating the liquid guide device so that the push plate will The valve is pushed down to close the valve cover, making it difficult to reset.

3) The structure is greatly simplified, and there is no need to use a blocking body. The disposable airtight body fluid indweller of the present invention is composed of four parts: a liquid storage tube, a liquid diversion device, a fixing device piece and a one-way valve, and has a simple structure;

4) The through hole of the liquid diversion device is fully opened, and the diversion is smooth, so that the liquid can flow down smoothly without blockage;

5) Easy to use, whether it is a man or a woman, after taking the liquid, close the valve, then pull out the liquid backflow device and discard it, which is more hygienic and humane;

6) The scope of application is wider. When there are many urine samples, it needs to wait for a long time. At this time, the liquid storage tube of the present utility model can be directly inserted on the test tube rack of the laboratory together with the check valve to wait for detection. On the one hand, it can be Avoid leakage, spilling, confusion or cross-contamination that may occur when urine samples are exposed for a long time; on the other hand, it can avoid the diffusion of urine sample odor and reduce the impact on the working environment of testing personnel;

7) It is convenient for the inspector to take the liquid. Since the valve is pivotally connected to the inner wall of the valve cover, the inspector can directly squeeze the valve with the suction pipe and other liquid-taking equipment to make the valve rotate. The upper part of the liquid storage pipe is opened, and then directly inserted into the liquid storage pipe Take the liquid to avoid the contact between the inspector and the urine, which is more hygienic and safe;

8) The cost is greatly reduced. Compared with the existing disposable airtight body fluid indwelling device, the cost can be reduced by 30-50%, which is suitable for large-scale industrial production and application.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (8)

1. A disposable airtight body fluid indwelling device, comprising a liquid storage tube and a liquid guide device, the liquid storage tube includes an opening and a liquid storage cavity, and the liquid guide device is provided with a liquid guide channel and an annular side wall, so One end of the liquid guide channel is a liquid inlet, and the other end is a liquid outlet. It is characterized in that it also includes a one-way valve and a fixing device piece. The one-way valve includes a hollow valve cover and is pivotally connected to the valve cover. The valve on the inner wall, the inner wall of the liquid guiding channel is fixed with a push plate, and the fixing device piece is detachably plugged into the liquid guiding channel to limit the rotation of the liquid guiding device and seal the The liquid guiding channel, the liquid guiding device is detachably installed on the upper part of the valve cover, the liquid storage tube is detachably installed on the lower part of the valve cover, and the push plate overlaps partially or completely with the valve , take out the fixing device piece, turn the liquid guide device, the push plate pushes the valve down to close the valve cover, the cross-sectional area of the upper part of the valve cover is larger than that of the lower part of the valve cover The cross-sectional area is large, the upper part of the valve cover is in the shape of a hollow cylinder, and the lower part of the valve cover is also in the shape of a hollow cylinder, and the outer wall of the liquid guide channel is tightly fitted or threaded to the inner wall of the upper part of the valve cover , the opening of the liquid storage pipe is tightly fitted or screwed to the outer wall of the lower part of the valve cover, the valve is pivotally connected to the inner wall of the lower part of the valve cover, and the fixing device piece includes a handle part, an annular cover body and a limiting part, the handle part is fixed above the annular cover, the limiting part is fixed below the annular cover, and the limiting part extends into the liquid guiding channel , the limiting portion clamps the valve and the push plate. 2. The disposable airtight body fluid indweller according to claim 1, characterized in that: the outer surface of the upper part of the valve cover is provided with a rough surface. 3. The disposable airtight body fluid indweller according to claim 1, characterized in that: the inner wall of the lower part of the valve cover is oppositely provided with a pair of pivot holes or pivot grooves, the valve includes an annular valve body and A pair of pivoting shafts arranged on the side of the valve body, the pivoting shafts extend into the pivoting hole or pivoting slot, the valve body can rotate around the pivoting shaft in the pivoting hole or pivoting slot Internal rotation. 4. The disposable airtight body fluid indweller according to claim 3, wherein the cross-sectional area of the valve body is greater than or equal to the inner cross-sectional area of the lower part of the valve cover. 5 . The disposable airtight body fluid indweller according to claim 1 , characterized in that: the liquid guiding device is further provided with a handle and a liquid guiding nozzle, and the liquid guiding nozzle is in the shape of a spout. 6. The disposable airtight body fluid indweller according to claim 1, characterized in that: the liquid storage tube is provided with a capacity scale, the diameter of the liquid storage tube is between 8-22mm, and the height is between 60 Between -150mm, the maximum diameter of the annular side wall of the liquid guide device is between 50-150mm, and the diameter of the liquid inlet is between 8-16mm. 7. The disposable airtight body fluid indweller according to claim 1, characterized in that: the liquid storage tube, the liquid guiding device, the one-way valve and/or the fixing device piece are made of plastic. 8. The disposable closed body fluid indweller according to claim 7, wherein the plastic is selected from any one of PE plastic, TPE plastic, PS plastic, PP plastic or AS plastic, PC plastic or ABS plastic .