CN109009244B - Disposable catheter for collecting middle-section urine - Google Patents

Abstract

The invention discloses a disposable catheter for collecting middle-section urine, which comprises a sampling cup, a collecting cup and a centrifuge tube, wherein: the utility model provides a sampling cup upper portion opening is provided with a division board in the sampling cup, the division board is upper space and lower floor's space with the space separation in the sampling cup, set up a weeping passageway in the sampling cup, weeping passageway's lower part and sampling cup sealing connection, and lower extreme opening is in the sampling cup lower surface, upper end opening is in the upper space of sampling cup, weeping passageway's upper end opening is by a shutoff piece shutoff, collecting cup upper portion opening, the collecting cup bottom is porose, this hole and centrifuging tube intercommunication, a stay bar is fixed in the collecting cup, when the sampling cup was placed in the collecting cup, the stay bar can be followed weeping passageway's lower extreme opening to wear out from weeping passageway's upper end opening, jack-up with the shutoff piece. The invention has the advantages of automatically intercepting middle urine and avoiding pollution.

Description

Disposable urinary catheter for collecting midstream urine

Technical Field

The invention belongs to the technical field of medical devices, and in particular relates to a disposable urinary catheter for collecting midstream urine.

Background technique

The testing equipment in the field of clinical testing is constantly updated, but urine sample collectors have been using disposable open plastic cups for many years. It is difficult for patients or medical staff to control the sampling volume during the sampling process, which can easily cause embarrassing urine overflows. Urine splashes are also likely to occur during the inspection process, which can easily contaminate the body and the surrounding environment, and even cause cross infection.

In addition, since the first-stream urine contains more bacteria and the midstream urine has less bacterial contamination, the indicator is more meaningful. Therefore, when collecting urine samples, the patient needs to urinate at least 10 ml before collecting urine. Some patients have less urine and it is difficult to collect midstream urine in time. Some patients start collecting urine before they have urinated midstream urine, and put the urine sample collector into the urethra to collect urine when urinating. It is easy for urine to get on the hands or the outer wall of the collector, causing contamination.

Summary of the invention

The technical problem to be solved by the present invention is to provide a disposable urinary catheter for collecting midstream urine in view of the above-mentioned deficiencies in the prior art. The urine sample collector can automatically intercept midstream urine and has the advantages of being easy to use and avoiding contamination.

In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

A disposable urinary catheter for collecting midstream urine comprises a sampling cup, a collecting cup and a centrifuge tube, wherein: the sampling cup has an opening at the top, a leaky partition is arranged in the sampling cup, the partition divides the space in the sampling cup into an upper space and a lower space, a leakage channel is arranged in the sampling cup, the lower part of the leakage channel is sealedly connected to the sampling cup, and the lower end opens at the lower surface of the sampling cup, and the upper end opens at the upper space of the sampling cup, the upper end opening of the leakage channel is blocked by a blocking piece, the collecting cup has an opening at the top, and a hole is arranged at the bottom of the collecting cup, the hole is connected to the centrifuge tube, a support rod is fixed in the collecting cup, when the sampling cup is placed in the collecting cup, the support rod can be inserted into the leakage channel from the lower end opening, and pass through the upper end opening of the leakage channel to push open the blocking piece, so that urine in the upper space of the sampling cup can flow into the hole at the bottom of the collecting cup through the leakage channel, and then flow into the centrifuge tube through the hole at the bottom of the collecting cup.

To optimize the above technical solutions, the specific measures taken also include:

A water-absorbing sponge is placed in the lower space of the sampling cup, and the lower space of the sampling cup can accommodate at least 10 ml of liquid.

The diameter of the support rod is smaller than the inner diameter of the leakage channel. When the support rod pushes the blocking member open, the urine in the upper space of the sampling cup flows into the collection cup through the gap between the tube wall of the leakage channel and the support rod.

The diameter of the above-mentioned support rod is equal to the inner diameter of the leakage channel. The support rod has a support rod channel. The upper end of the support rod channel opens at the upper part of the support rod, and the lower end opens at the lower part of the support rod. When the support rod is inserted into the leakage channel and the blocking piece is pushed open, the support rod is sealed and matched with the inner wall of the leakage channel. The upper end opening of the support rod channel is located in the upper space of the sampling cup, and the lower end opening of the support rod channel is located in the cup body space of the collecting cup. Urine in the upper space of the sampling cup can flow into the collecting cup through the support rod channel.

The above-mentioned blocking piece is a sphere or a cone or a topless pyramid or an ellipsoid, and a blocking piece fixing seat is provided at the upper opening of the leakage channel. The blocking piece is limited on all sides by the blocking piece fixing seat so that the blocking piece is fixed on the upper opening of the leakage channel by its own gravity or the friction force of the blocking piece fixing seat.

The above-mentioned plugging member fixing seat is composed of four petals, which are arranged at an equal distance on the upper end of the leakage channel and cooperate with each other to clamp the surrounding of the plugging member, thereby positioning the plugging member.

The sampling cup is provided with a handle.

The side wall of the sampling cup is provided with a vertical slide groove, the lower part of the handle is stuck in the vertical slide groove, and the handle can slide up and down along the vertical slide groove.

The centrifuge tube is provided with scales, and its tube mouth is connected to a centrifuge tube cover through a bendable connector.

The mouth of the centrifuge tube is provided with an external thread, and the centrifuge tube cover is provided with an internal thread matching the external thread. The centrifuge tube cover can be sealed on the mouth of the centrifuge tube through the matching internal thread and the external thread, and the centrifuge tube can be fixedly connected to the collection cup through its external thread.

The partition plate is provided with a plurality of sieve holes, and the front urine can pass through the sieve holes from the upper space of the sampling cup into the lower space.

The collection cup is equipped with a cup cover which can cover the upper opening of the collection cup. The sampling cup can be put into the collection cup as a whole, and only the handle extends from the upper part of the collection cup. The cup cover is provided with a groove for the handle to pass through.

The urine sample collector of the present invention is composed of three parts: a sampling cup, a collecting cup and a centrifuge tube. When collecting urine samples, the patient directly uses the sampling cup to collect urine, and the first-stage urine and part of the middle-stage urine enter the lower space of the sampling cup through the partition plate and are absorbed by the sponge. After the lower space is full, the remaining middle-stage urine is located in the upper space of the sampling cup. At this time, the sampling cup is placed in the collecting cup, and the support rod can be inserted into the leakage channel from the lower end opening of the leakage channel to push the blocking piece open. The middle-stage urine in the upper space of the sampling cup flows along the leakage channel into the collecting cup and flows into the centrifuge tube through the bottom of the collecting cup. Thus, the collection of the middle-stage urine is completed.

The present invention has the following advantages:

1. The sampling is convenient and hygienic. It does not require the patient to collect urine halfway through urinating, which effectively avoids urine splashing onto the patient's hands and the outer wall of the sampling cup;

2. A sponge is set in the lower space of the sampling cup to absorb the first-pass urine, ensuring that the first-pass urine will not overflow into the upper space of the sampling cup due to liquid flow, thereby ensuring the accuracy of urine sampling.

3. The support rod is matched with the leakage channel and the blocking piece, which has a simple structure, convenient opening and closing, good sealing effect and disposable use.

4. A centrifuge tube cover is provided on the centrifuge tube, which ensures the safety of urine sample delivery and avoids the contamination of urine during transportation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention.

FIG2 is a cross-sectional view of FIG1;

Fig. 3 is a perspective view of the present invention;

FIG4 is a schematic diagram of the structure of the present invention after removing the cup cover;

FIG5 is a schematic diagram of the structure of the sampling cup without the partition plate;

FIG6 is a cross-sectional view of FIG5;

FIG7 is a schematic structural diagram of a partition plate;

Fig. 8 is a schematic structural diagram of a centrifuge tube;

FIG. 9 is a schematic structural diagram of a centrifuge tube cover.

The accompanying drawings are marked as follows: sampling cup 1, partition plate 11, sieve hole 11a, leakage channel 12, sealing member fixing seat 13, petal 13a, vertical slide groove 14, collecting cup 2, cup cover 21, centrifuge tube 3, connecting piece 31, centrifuge tube cover 32, sealing member 4, support rod 5, support rod channel, handle 6.

Detailed ways

The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

First embodiment:

The disposable urinary catheter for collecting midstream urine of the present invention comprises a sampling cup 1, a collecting cup 2 and a centrifuge tube 3, wherein: the upper part of the sampling cup 1 is open, a water-tight partition plate 11 is arranged in the sampling cup 1, the partition plate 11 divides the space in the sampling cup 1 into an upper space and a lower space, a liquid leakage channel 12 is arranged in the sampling cup 1, the lower part of the liquid leakage channel 12 is sealed and connected with the sampling cup 1, and the lower end is opened at the lower surface of the sampling cup 1, and the upper end is opened at the upper space of the sampling cup 1, and the upper end of the liquid leakage channel 12 is connected to the upper space of the sampling cup 1. The opening is blocked by a blocking member 4, the upper part of the collecting cup 2 is open, and the bottom of the collecting cup 2 is provided with a hole, which is connected to the centrifuge tube 3. A support rod 5 is fixed in the collecting cup 2. When the sampling cup 1 is placed in the collecting cup 2, the support rod 5 can be inserted into the leakage channel 12 from the lower end opening of the leakage channel 12, and pass through the upper end opening of the leakage channel 12 to push the blocking member 4 open, so that the urine in the upper space of the sampling cup 1 can flow into the hole at the bottom of the collecting cup 2 through the leakage channel 12, and flow into the centrifuge tube 3 through the hole at the bottom of the collecting cup 2.

In the embodiment, a water-absorbing sponge is placed in the lower space of the sampling cup 1, and the lower space of the sampling cup 1 can accommodate at least 10 ml of liquid.

In the embodiment, the diameter of the support rod 5 is smaller than the inner diameter of the leakage channel 12 . When the support rod 5 pushes the blocking member 4 open, the urine in the upper space of the sampling cup 1 flows into the collecting cup 2 through the gap between the tube wall of the leakage channel 12 and the support rod 5 .

In the embodiment, the blocking member 4 is a sphere, and a blocking member fixing seat 13 is provided at the upper opening of the leakage channel 12. The blocking member 4 is limited on all sides by the blocking member fixing seat 13, so that the blocking member 4 is fixed on the upper opening of the leakage channel 12 by its own gravity or the friction force of the blocking member fixing seat 13.

In the embodiment, the plugging member fixing seat 13 is composed of four petals 13a, which are arranged at equal intervals on the upper end of the leakage channel 12 and cooperate with each other to clamp the four sides of the plugging member 4, thereby positioning the plugging member 4.

In the embodiment, a handle 6 is provided on the sampling cup 1 .

In the embodiment, a vertical slide groove 14 is provided on the side wall of the sampling cup 1 , and the lower part of the handle 6 is stuck in the vertical slide groove 14 , and the handle 6 can slide up and down along the vertical slide groove 14 .

In the embodiment, the centrifuge tube 3 is provided with scales, and the tube mouth thereof is connected to a centrifuge tube cover 32 via a bendable connector 31 .

In the embodiment, the mouth of the centrifuge tube 3 is provided with an external thread, and the centrifuge tube cover 32 is provided with an internal thread matching the external thread. The centrifuge tube cover 32 can be sealed on the mouth of the centrifuge tube 3 through the matching internal thread and the external thread, and the centrifuge tube 3 can be fixedly connected to the collection cup 2 through its external thread.

In the embodiment, a plurality of sieve holes 11 a are provided on the partition plate 11 , and the front urine can pass through the sieve holes 11 a from the upper space of the sampling cup 1 into the lower space.

In the embodiment, the collection cup 2 is equipped with a cup cover 21 that can cover the upper opening of the collection cup 2, and the sampling cup 1 can be placed in the collection cup 2 as a whole, with only the handle 6 extending from the upper part of the collection cup 2. The cup cover 21 is provided with a slot for the handle 6 to pass through.

Second embodiment:

In the embodiment, the diameter of the support rod 5 is equal to the inner diameter of the leakage channel 12, and the support rod 5 has a support rod channel. The upper end of the support rod channel opens at the upper part of the support rod 5, and the lower end opens at the lower part of the support rod 5. When the support rod 5 is inserted into the leakage channel 12 and the blocking member 4 is pushed open, the support rod 5 is sealed with the inner wall of the leakage channel 12. The upper end opening of the support rod channel is located in the upper space of the sampling cup 1, and the lower end opening of the support rod channel is located in the cup body space of the collecting cup 2. The urine in the upper space of the sampling cup 1 can flow into the collecting cup 2 through the support rod channel.

In the embodiment, the blocking member 4 is a cone.

The undescribed parts are the same as those in the first embodiment.

Third embodiment:

In the embodiment, the blocking member 4 is a topless cone.

The undescribed parts are the same as those in the first embodiment.

Fourth embodiment:

In the embodiment, the blocking member 4 is an ellipsoid.

The undescribed parts are the same as those in the first embodiment.

The urine sample collector of the present invention is used as follows:

When the patient collects urine, he/she takes the handle 6 of the sampling cup 1 by hand, and the handle 6 slides upward along the vertical slide 14, so that the patient's hand is away from the cup mouth of the sampling cup 1 to prevent urine from splashing on the hand. Then the patient urinates into the sampling cup 1, and the initial urine and part of the middle urine enter the lower space of the sampling cup 1 through the partition plate 11 and are absorbed by the sponge. After the lower space is full, the remaining middle urine is located in the upper space of the sampling cup. When the sampling cup 1 is full, the sampling cup 1 is placed in the collection cup 2, and the support rod 5 in the collection cup 2 can be inserted into the leakage channel 12 from the lower end opening of the leakage channel 12, and pass through the upper end opening of the leakage channel 12, pushing the blocking member 4 open, so that the urine in the upper space of the sampling cup 1 can flow into the collection cup 2 through the leakage channel 12, and flow into the centrifuge tube 3 through the bottom of the collection cup 2. There are scales on the centrifuge tube 3. After taking a suitable amount of urine, the centrifuge tube 3 is pulled out from the lower part of the collection cup 2, covered with a centrifuge tube cover 32, and then sent for inspection.

The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims (8)

1. A disposable urinary catheter for collecting midstream urine, comprising a sampling cup (1), a collecting cup (2) and a centrifuge tube (3), characterized in that: the sampling cup (1) is open at the top, a water-tight partition plate (11) is arranged in the sampling cup (1), the partition plate (11) divides the space in the sampling cup (1) into an upper space and a lower space, a leakage channel (12) is arranged in the sampling cup (1), the lower part of the leakage channel (12) is sealed and connected to the sampling cup (1), and the lower end opens to the lower surface of the sampling cup (1), and the upper end opens to the upper space of the sampling cup (1), the upper end opening of the leakage channel (12) is blocked by a blocking member (4), the collecting cup (2) is open at the top, the bottom of the collecting cup (2) has a hole, the hole is connected to the centrifuge tube (3), the collecting cup (2) is open at the top, A support rod (5) is fixed in the collecting cup (2). When the sampling cup (1) is placed in the collecting cup (2), the support rod (5) can be inserted into the leakage channel (12) from the lower end opening of the leakage channel (12) and pass through the upper end opening of the leakage channel (12) to push open the blocking member (4), so that urine in the upper space of the sampling cup (1) can flow through the leakage channel (12) to the bottom hole of the collecting cup (2) and flow into the centrifuge tube (3) through the bottom hole of the collecting cup (2). An absorbent sponge is placed in the lower space of the sampling cup (1). The lower space of the sampling cup (1) can accommodate at least 10 ml of liquid. The partition plate (11) is provided with a plurality of sieve holes (11a), and the front urine can pass through the sieve holes (11a) from the upper space of the sampling cup (1) into the lower space. 2. The disposable urinary catheter for collecting midstream urine according to claim 1 is characterized in that: the diameter of the support rod (5) is smaller than the inner diameter of the leakage channel (12), and when the support rod (5) pushes the blocking member (4) open, the urine in the upper space of the sampling cup (1) flows into the collection cup (2) through the gap between the tube wall of the leakage channel (12) and the support rod (5). 3. The disposable urinary catheter for collecting midstream urine according to claim 1 is characterized in that: the diameter of the support rod (5) is equal to the inner diameter of the leakage channel (12), the support rod (5) has a support rod channel, the upper end of the support rod channel opens at the upper part of the support rod (5), and the lower end opens at the lower part of the support rod (5). When the support rod (5) is inserted into the leakage channel (12) and the blocking member (4) is pushed open, the support rod (5) and the inner wall of the leakage channel (12) are sealed and matched. The upper end opening of the support rod channel is located in the upper space of the sampling cup (1), and the lower end opening of the support rod channel is located in the cup body space of the collecting cup (2). Urine in the upper space of the sampling cup (1) can flow into the collecting cup (2) through the support rod channel. 4. The disposable urinary catheter for collecting midstream urine according to claim 1 is characterized in that: the blocking member (4) is a sphere or a cone or a topless vertebra or an ellipsoid, and the upper end opening of the leakage channel (12) is provided with a blocking member fixing seat (13), and the surrounding of the blocking member (4) is limited by the blocking member fixing seat (13), so that the blocking member (4) is fixed on the upper end opening of the leakage channel (12) by its own gravity or the friction force of the blocking member fixing seat (13). 5. The disposable urinary catheter for collecting midstream urine according to claim 1 is characterized in that: the blocking member fixing seat (13) is composed of four petals (13a), and the four petals (13a) are arranged at equal intervals on the upper end of the leakage channel (12), cooperate with each other, clamp the surrounding of the blocking member (4), so as to position the blocking member (4). 6. The disposable urinary catheter for collecting midstream urine according to claim 1 is characterized in that: a handle (6) is provided on the sampling cup (1); a vertical slide groove (14) is provided on the side wall of the sampling cup (1), the lower part of the handle (6) is stuck in the vertical slide groove (14), and the handle (6) can slide up and down along the vertical slide groove (14). 7. The disposable urinary catheter for collecting midstream urine according to claim 1 is characterized in that: the centrifuge tube (3) is provided with a scale, and its tube mouth is connected to a centrifuge tube cover (32) through a flexible connector (31); the tube mouth of the centrifuge tube (3) is provided with an external thread, and the centrifuge tube cover (32) is provided with an internal thread matching therewith, the centrifuge tube cover (32) can be sealed on the tube mouth of the centrifuge tube (3) through the matching sealing cover of the internal thread and the external thread, and the centrifuge tube (3) can be fixedly connected to the collection cup (2) through its external thread. 8. The disposable urinary catheter for collecting midstream urine according to claim 6 is characterized in that: the collection cup (2) is equipped with a cup cover (21) that can cover the upper opening of the collection cup (2), the sampling cup (1) can be placed in the collection cup (2) as a whole, and only the handle (6) extends from the upper part of the collection cup (2), and the cup cover (21) is provided with a groove for the handle (6) to pass through.