CN110652321B - Amniotic fluid detection sampling device for obstetrics and gynecology department - Google Patents
Amniotic fluid detection sampling device for obstetrics and gynecology department Download PDFInfo
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- CN110652321B CN110652321B CN201910975014.8A CN201910975014A CN110652321B CN 110652321 B CN110652321 B CN 110652321B CN 201910975014 A CN201910975014 A CN 201910975014A CN 110652321 B CN110652321 B CN 110652321B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
- A61B10/0048—Devices for taking samples of body liquids for taking amniotic fluid samples
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Abstract
The invention discloses a amniotic fluid detection sampling device for obstetrics and gynecology department, which comprises a bracket and a sampling mechanism; the bracket is connected with a sampling mechanism through a height adjusting mechanism; the sampling mechanism comprises a first connecting plate, a first motor, a first lead screw, a connecting disc, an outer cylinder and an inner cylinder, the first connecting plate is connected with the support, the first motor is arranged in the middle of the bottom surface of the first connecting plate, the connecting disc is sleeved on an output shaft of the first motor, the connecting disc is connected with the outer cylinder, the inner cylinder is sleeved in the outer cylinder in a sliding manner, the bottom of the inner cylinder is communicated with a sampling needle, a piston is arranged in the inner cylinder in a sliding manner, a second connecting plate is arranged at the top of the inner cylinder, a driving mechanism for driving the piston to sample is arranged on the second connecting plate, and a amniotic fluid output port is arranged at the upper part of the inner cylinder; the output shaft end of the first motor is connected with a first lead screw, and the first lead screw is connected with the driving mechanism through a first thread bushing sleeved with the first lead screw. The amniotic fluid sampling device is reasonable in structure and simple to operate, controllable sampling in the amniotic fluid detection sampling process can be realized, and the safety of a pregnant woman and a fetus in the sampling process is effectively ensured.
Description
Technical Field
The invention relates to medical equipment, in particular to a amniotic fluid detection sampling device for obstetrics and gynecology department.
Background
The amniotic fluid is mainly a dialysate of maternal serum entering the amniotic cavity through a placenta and a small amount of the amniotic fluid seeps from the surface of the placenta and the surface of an umbilical cord in the early gestation period, when fetal blood circulation is formed, water and small molecules in a fetus can seep out through the skin of the fetus which is not yet keratinized to form a part of the amniotic fluid, and the kidney of the fetus has an excretion function in 11-14 weeks of gestation, so urine discharged by the fetus after the middle gestation period is an important source of the amniotic fluid, and the amniotic fluid is 800-1000 ml in full-term gestation. The amniotic fluid is colorless and transparent alkaline liquid, more than 90 percent of which is water, and additionally contains mineral substances, urea, uric acid, creatinine, fetal fat, fetal epithelial cells and the like, the amount of AFP in the amniotic fluid can be used as an index for monitoring whether a fetus has malformation, and the fetus can be screened for hereditary diseases by detecting the chromosome of the fetal cells in the amniotic fluid.
The amniotic fluid examination is mostly carried out in 16-20 gestation periods, amniotic fluid is adopted for examination through amniocentesis, and examination items comprise cell culture, sex chromosome identification, chromosome karyotype analysis, amniotic fluid alpha-fetoprotein determination, amniotic fluid biochemical examination and the like, so that the maturity and health condition of a fetus are determined, and whether the fetus is normal or has some genetic diseases is diagnosed. But the sample that detects amniotic fluid at present is mostly manual sample, and the operation is more troublesome, and needs medical personnel to hand fixedly to the sample needle at all times, can lead to the sample process hard like this, and thereby makes medical personnel control improper easily and cause the influence to foetus and pregnant woman.
Disclosure of Invention
In order to overcome the defects in the prior art, the amniotic fluid detection and sampling device for obstetrics and gynecology department provided by the invention is reasonable in structure and simple to operate.
The invention provides a amniotic fluid detection sampling device for obstetrics and gynecology department, which comprises a bracket and a sampling mechanism;
the bracket is connected with a sampling mechanism through a height adjusting mechanism;
the sampling mechanism comprises a first connecting plate, a first motor, a first lead screw, a connecting disc, an outer cylinder and an inner cylinder, the first connecting plate is connected with the support, the first motor is arranged in the middle of the bottom surface of the first connecting plate, the connecting disc is sleeved on an output shaft of the first motor, the connecting disc is connected with the outer cylinder through a first connecting rod, the inner cylinder is sleeved in the outer cylinder in a sliding manner, a sampling needle capable of penetrating through the outer cylinder and extending downwards is arranged at the bottom of the inner cylinder in a communicating manner, a piston is further arranged in the inner cylinder in a sliding manner, the top of the inner cylinder is provided with a second connecting plate, a driving mechanism for driving the piston to move up and down for sampling is arranged on the second connecting plate, and a amniotic fluid output port is arranged at the upper part of the inner cylinder;
the end part of an output shaft of the first motor is connected with a first lead screw, and the first lead screw is connected with a driving mechanism through a first threaded sleeve sleeved with the first lead screw.
Preferably, the outer part of the outer barrel is provided with a jacket in a surrounding manner, a space between the jacket and the outer barrel is provided with a disinfectant storage cavity, two opposite sides of the inner lower part of the outer barrel are respectively connected with atomizing nozzles through pipelines, the pipelines are both provided with booster pumps, and the jacket is also provided with a disinfectant inlet and a disinfectant outlet.
Preferably, the bottom of the outer barrel is detachably connected with an elastic cover, the middle part of the elastic cover is provided with a through hole for the sampling needle to pass through, and the elastic cover can also be detachably connected with a sterilized cotton.
Preferably, the upper parts of the opposite inner walls of the outer cylinder are respectively provided with an inverted L-shaped slide way, and the outer wall of the inner cylinder is correspondingly provided with a square slide block which can be in sliding connection with the slide ways.
Preferably, actuating mechanism includes that the third links the board, the second motor, the second lead screw, the second connecting rod, the third links board and first lead screw sliding connection, the bottom surface middle part that the third links the board is connected with the second motor, be connected with the second lead screw on the output shaft of second motor, another tip and the second of second lead screw link the board and rotate and be connected, the cover is equipped with the second thread bush on the second lead screw, all be connected with the second connecting rod on the relative both sides wall of second thread bush, the second connecting rod runs through the second and links board and piston connection.
Preferably, the second lead screw is marked with scales, and the volumes of the amniotic fluid extracted from the inner cylinder are the same when the scales and the second threaded sleeve are positioned at the position of the second lead screw.
Preferably, a first threaded sleeve is sleeved on the first lead screw, and the two opposite sides of the first threaded sleeve are connected with a third connecting plate through a third connecting rod;
the second connecting rod and the third connecting rod are both of inverted L-shaped structures consisting of transverse rods and vertical rods.
Preferably, an annular shell is arranged on the outer wall of the inner barrel and positioned in the outer barrel, and an electric heating wire is arranged in the shell.
Preferably, the inner cylinder is further provided with a self-locking mechanism at the connection part with the sampling needle, the self-locking mechanism comprises a spring and a shielding ball, the spring is arranged in the sampling needle, and the end part of the spring is connected with the shielding ball which can shield the end part of the sampling needle.
Preferably, the support comprises a base, a support rod and a universal wheel, and the height adjusting mechanism comprises a fixed seat, a fourth connecting rod, a third motor and a third screw rod;
the bottom of the base is provided with a universal wheel, the universal wheel is provided with a braking mechanism, the top of the base is vertically provided with a supporting rod, the upper part of the supporting rod is fixedly connected with a fixed seat with a C-shaped structure, the inner top of the fixed seat is provided with a third motor, an output shaft of the third motor is connected with a third lead screw which can be rotatably connected with the inner bottom of the fixed seat, and the third lead screw is vertically and slidably connected with a first connecting plate through a sleeved third threaded sleeve;
and a fourth connecting rod parallel to the third screw rod is further connected in the fixed seat, and the fourth connecting rod is connected with the first connecting plate in a sliding manner.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has reasonable structure and convenient use, and the sampling mechanism is positioned above the part needing to be sampled by the height adjusting mechanism, so the adjustment is convenient; 2. the invention realizes mechanical control sampling through the driving mechanism, so that the whole sampling process is more controllable, and the influence of improper operation on the pregnant woman or the fetus is effectively avoided; 3. according to the invention, the sampling needle can be sterilized through the arrangement of the disinfectant storage cavity, the booster pump and the atomizing nozzle, so that the safety is improved.
Drawings
Fig. 1 is a schematic structural view of an amniotic fluid detection sampling device in obstetrics and gynecology department in embodiment 1 of the invention;
fig. 2 is a schematic structural diagram of a sampling mechanism in the amniotic fluid detection sampling device of the obstetrics and gynecology department in the embodiment 1 of the invention;
fig. 3 is a schematic structural view of an amniotic fluid detection sampling device in obstetrics and gynecology department in embodiment 2 of the invention.
In the figure: 1. a support; 2. a sampling mechanism; 3. a first connecting plate; 4. a first motor; 5. a first lead screw; 6. a connecting disc; 7. an outer cylinder; 8. an inner barrel; 9. a sampling needle; 10. a piston; 11. a second connecting plate; 12. a disinfectant storage chamber; 13. an atomizing spray head; 14. a booster pump; 15. elastic covering; 16. a third connecting plate; 17. a second motor; 18. a second lead screw; 19. a second link; 20. a fixed seat; 21. a fourth link; 22. a third motor; 23. and a third lead screw.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example 1
The embodiment provides a amniotic fluid detection sampling device for obstetrics and gynecology department, as shown in fig. 1 and fig. 2, the amniotic fluid detection sampling device comprises a bracket 1 and a sampling mechanism 2, wherein the bracket 1 is used for supporting the whole sampling device, and the sampling mechanism 2 is used for sampling amniotic fluid;
the sampling mechanism 2 is connected with the support 1 through the height adjusting mechanism, the support 1 is a common support comprising a base and a connecting rod, the height adjusting mechanism is a telescopic rod, namely the top of the base is connected with the connecting rod, the top of the connecting rod is connected with a telescopic rod, the top of the telescopic rod is connected with the sampling mechanism 2, and the telescopic rod is a mechanical telescopic structure comprising an inner rod, an outer pipe sleeved on the inner rod and a fixing bolt, or a hydraulic telescopic structure or an electric telescopic structure;
the sampling mechanism 2 comprises a first connecting plate 3, a first motor 4, a first lead screw 5, a connecting disc 6, an outer cylinder 7 and an inner cylinder 8, the first connecting plate 3 is connected with the support 1, the first motor 4 is arranged in the middle of the bottom surface of the first connecting plate 3, the connecting disc 6 is sleeved on an output shaft of the first motor 4, the connecting disc 6 is connected with the outer cylinder 7 through a first connecting rod, the inner cylinder 8 is sleeved in the outer cylinder 7 in a sliding manner, namely, inverted L-shaped slideways are arranged above the opposite inner walls of the outer cylinder 7, the outer wall of the inner cylinder 8 is correspondingly provided with a square sliding block capable of being in sliding connection with the slideways, the square sliding block is firstly positioned at the horizontal end of the inverted L-shaped slideways, in the rotating process of the outer cylinder 8, the square sliding block rotates on the horizontal shaft of the inverted L-shaped slideways, after the outer cylinder 8 rotates to a vertical shaft, the inner cylinder 7 stops rotating, at the moment, the inner cylinder 7 can move downwards along the outer cylinder 8 under the driving of the first lead screw 5, so that a sampling needle 9 is exposed outside the outer cylinder 7, the bottom of the inner cylinder 8 is communicated with a sampling needle 9 which can penetrate through the outer cylinder 7 and extend downwards, a piston 10 is further arranged in the inner cylinder 8 in a sliding mode, a second connecting plate 11 is fixedly arranged at the top of the inner cylinder 8, a driving mechanism used for driving the piston 10 to sample is arranged on the second connecting plate 11, a amniotic fluid output port is arranged at the upper portion of the inner cylinder 8, the first connecting plate 3 is used for being connected with the support 1, the first motor 4 is used for driving the connecting plate 6 to rotate, and the outer cylinder 7 is used for providing an accommodating space for the inner cylinder 8;
a first threaded sleeve is sleeved on the first lead screw 5, and the two opposite sides of the first threaded sleeve are connected with a third connecting plate 16 through a third connecting rod;
in order to ensure the preservation time of the sample amniotic fluid and not influence the detection, an annular shell is arranged on the inner barrel 8 and the outer wall positioned in the outer barrel 7, and a heating wire is arranged in the shell, so that the temperature of the amniotic fluid can be kept in the body after the amniotic fluid is taken out, and the influence on the detection result due to the temperature difference is avoided;
in order to prevent the taken amniotic fluid from flowing backwards, a self-locking mechanism is further arranged at the connecting part of the inner cylinder 8 and the sampling needle 9, the self-locking mechanism comprises a spring and a shielding ball, the spring is arranged in the sampling needle 9, and the end part of the spring is connected with the shielding ball capable of shielding the end part of the sampling needle 9;
the second connecting rod 19 and the third connecting rod are both of inverted L-shaped structures consisting of a cross rod and a vertical rod;
in order to enable the inner barrel 8 to slide out of the outer barrel 7 more conveniently and not to be polluted easily when not sliding out, the bottom of the outer barrel 7 is detachably connected with an elastic cover 15, the middle part of the elastic cover 15 is provided with a through hole for the sampling needle 9 to pass through, and the elastic cover 15 can also be detachably connected with sterilized cotton;
the end part of an output shaft of the first motor 4 is connected with a first lead screw 5, and the first lead screw 5 is connected with a driving mechanism through a first threaded sleeve which is sleeved;
the driving mechanism comprises a third connecting plate 16, a second motor 17, a second screw rod 18 and a second connecting rod 19, the third connecting plate 16 is connected with the first screw rod 5 in a sliding mode, the middle of the bottom surface of the third connecting plate 16 is connected with the second motor 17, the output shaft of the second motor 17 is connected with the second screw rod 18, the other end of the second screw rod 18 is rotatably connected with the second connecting plate 11, a second threaded sleeve is sleeved on the second screw rod 18, the two opposite side walls of the second threaded sleeve are connected with the second connecting rod 19, and the second connecting rod 19 penetrates through the second connecting plate 11 and is connected with the piston 10;
scales are marked on the second screw rod 18, and the volume of the scales is the same as that of the amniotic fluid pumped in the inner barrel 8 when the second threaded sleeve is positioned at the position of the second screw rod 18;
in order to ensure the safety of the sampling process and prevent the sampling needle 9 from being polluted so as to cause injury to the pregnant woman, a jacket is arranged around the outer part of the outer barrel 7, a space between the jacket and the outer barrel 7 is provided with a disinfectant storage cavity 12, two opposite sides of the inner lower part of the outer barrel 7 are respectively connected with atomizing nozzles 13 through pipelines, the pipelines are provided with booster pumps 14, and the jacket is also provided with a disinfectant adding port and a discharging port.
In specific implementation, that is, during operation, the first motor 4 drives the outer cylinder 7 to rotate, so that the outer cylinder 7 and the inner cylinder 8 rotate relatively, when the square sliding block is located at the end of the inverted L-shaped sliding transverse shaft and cannot rotate any more, the first motor 4 is turned off, and during the starting process of the first motor 4, the first lead screw 5 also rotates, so that the third connecting plate 16 moves downwards, that is, the square sliding block of the inner cylinder 8 moves downwards on the axes of the inverted L-shaped slideway of the outer cylinder 7, so that the sampling needle 9 is exposed out of the outer cylinder 7, and sampling can be performed; at this moment, the first motor 4 is in a closed state, the second motor 17 is started, the second motor 17 drives the second lead screw 18 to rotate, the second connecting rod 19 on the second lead screw 18 moves up and down along with the second lead screw, so that the piston 10 moves up and down, air in the inner barrel 8 can be discharged firstly, then the sampling needle 9 is pricked into the body, the piston 10 is driven to move upwards through the second motor 17, and therefore the amniotic fluid is sampled.
Example 2
The structure of the sampling device is the same as that of the embodiment 1, except that the bracket 1 is optimized in order to facilitate height adjustment of the sampling mechanism 2, as shown in fig. 3, the bracket 1 comprises a base, a support rod and a universal wheel, and the height adjustment mechanism comprises a fixed seat 20, a fourth connecting rod 21, a third motor 22 and a third lead screw 23;
the bottom of the base is provided with a universal wheel, the universal wheel is provided with a braking mechanism, the top of the base is vertically provided with a support rod, the upper part of the support rod is fixedly connected with a fixed seat 20 with a C-shaped structure, the top in the fixed seat 20 is provided with a third motor 22, an output shaft of the third motor 22 is connected with a third lead screw 23 which can be rotatably connected with the bottom in the fixed seat 20, and the third lead screw 23 is vertically and slidably connected with a first connecting plate 3 through a sleeved third threaded sleeve;
a fourth connecting rod 21 parallel to the third lead screw 23 is further connected in the fixed seat 20, and the fourth connecting rod 21 is slidably connected with the first connecting plate 3.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (6)
1. The amniotic fluid detection and sampling device for obstetrics and gynecology department is characterized by comprising a bracket (1) and a sampling mechanism (2);
the bracket (1) is connected with the sampling mechanism (2) through a height adjusting mechanism;
the sampling mechanism (2) comprises a first connecting plate (3), a first motor (4), a first lead screw (5), a connecting disc (6), an outer cylinder (7) and an inner cylinder (8), the first connecting plate (3) is connected with the support (1), the first motor (4) is arranged in the middle of the bottom surface of the first connecting plate (3), the connecting disc (6) is sleeved on an output shaft of the first motor (4), the connecting disc (6) is connected with the outer cylinder (7) through a first connecting rod, the inner cylinder (8) is sleeved in the outer cylinder (7) in a sliding manner, a sampling needle (9) which can penetrate through the outer cylinder (7) and extend downwards is communicated with the bottom of the inner cylinder (8), a piston (10) is further arranged in the inner cylinder (8) in a sliding manner, a second connecting plate (11) is arranged at the top of the inner cylinder (8), and a driving mechanism for driving the piston (10) to move up and down to sample is arranged on the second connecting plate (11), the upper part of the inner cylinder (8) is provided with a amniotic fluid outlet;
the end part of an output shaft of the first motor (4) is connected with the first lead screw (5), and the first lead screw (5) is connected with the driving mechanism through a first threaded sleeve which is sleeved;
the driving mechanism comprises a third connecting plate (16), a second motor (17), a second lead screw (18) and a second connecting rod (19), the third connecting plate (16) is connected with the first lead screw (5) in a sliding mode, the second motor (17) is connected to the middle of the bottom surface of the third connecting plate (16), the second lead screw (18) is connected to an output shaft of the second motor (17), the other end of the second lead screw (18) is rotatably connected with the second connecting plate (11), a second threaded sleeve is sleeved on the second lead screw (18), the second connecting rod (19) is connected to two opposite side walls of the second threaded sleeve, and the second connecting rod (19) penetrates through the second connecting plate (11) and is connected with the piston (10);
scales are marked on the second lead screw (18), and the volume of the amniotic fluid extracted from the inner cylinder (8) is the same as that of the amniotic fluid extracted from the second lead screw (18) when the scales and the second thread bush are positioned at the position of the second lead screw (18);
a jacket is arranged around the outer part of the outer barrel (7), a space between the jacket and the outer barrel (7) is provided with a disinfectant storage cavity (12), two opposite sides of the inner lower part of the outer barrel (7) are respectively connected with atomizing nozzles (13) through pipelines, the pipelines are provided with booster pumps (14), and a disinfectant feeding port and a disinfectant discharging port are also arranged on the jacket;
the relative inner wall top of urceolus (7) all is provided with down L shape slide, inner tube (8) outer wall correspond be provided with can with slide sliding connection's square slider.
2. The amniotic fluid detection and sampling device for obstetrics and gynecology department according to claim 1, characterized in that an elastic cover (15) is detachably connected to the bottom of the outer cylinder (7), a through hole for the sampling needle (9) to pass through is formed in the middle of the elastic cover (15), and a sterilized cotton can be detachably connected to the elastic cover (15).
3. The amniotic fluid detection and sampling device for obstetrics and gynecology department of claim 1, wherein the first threaded sleeve is sleeved on the first lead screw (5), and the third connecting plate (16) is connected to two opposite sides of the first threaded sleeve through a third connecting rod;
the second connecting rod (19) and the third connecting rod are both of inverted L-shaped structures consisting of transverse rods and vertical rods.
4. The amniotic fluid detection and sampling device for obstetrics and gynecology department according to claim 1, wherein an annular shell is installed on the outer wall of the inner cylinder (8) inside the outer cylinder (7), and an electric heating wire is installed in the shell.
5. The amniotic fluid detection and sampling device for obstetrics and gynecology department of claim 1, characterized in that a self-locking mechanism is further arranged at the connection part of the inner cylinder (8) and the sampling needle (9), the self-locking mechanism comprises a spring and a shielding ball, the spring is arranged in the sampling needle (9), and the end part of the spring is connected with the shielding ball which can shield the end part of the sampling needle (9).
6. The amniotic fluid detection and sampling device for obstetrics and gynecology department of claim 1, wherein the bracket (1) comprises a base, a support rod and a universal wheel, and the height adjusting mechanism comprises a fixed seat (20), a fourth connecting rod (21), a third motor (22) and a third lead screw (23);
the bottom of the base is provided with a universal wheel, the universal wheel is provided with a braking mechanism, the top of the base is vertically provided with the supporting rod, the upper part of the supporting rod is fixedly connected with the fixed seat (20) with a C-shaped structure, the top in the fixed seat (20) is provided with the third motor (22), the output shaft of the third motor (22) is connected with the third lead screw (23) which can be rotatably connected with the bottom in the fixed seat (20), and the third lead screw (23) is vertically and slidably connected with the first connecting plate (3) through a sleeved third threaded sleeve;
the fixing seat (20) is internally connected with a fourth connecting rod (21) parallel to the third lead screw (23), and the fourth connecting rod (21) is connected with the first connecting plate (3) in a sliding manner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910975014.8A CN110652321B (en) | 2019-10-14 | 2019-10-14 | Amniotic fluid detection sampling device for obstetrics and gynecology department |
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| CN201910975014.8A CN110652321B (en) | 2019-10-14 | 2019-10-14 | Amniotic fluid detection sampling device for obstetrics and gynecology department |
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| CN117643481B (en) * | 2024-01-30 | 2024-04-16 | 佳木斯大学 | Anti-blocking amniotic fluid sampler for obstetrics and gynecology department |
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| US20140336600A1 (en) * | 2013-05-10 | 2014-11-13 | Carl Randall Harrell | Method for Obtaining Sterile Human Amniotic Fluid and Uses Thereof |
| CN208591313U (en) * | 2017-10-18 | 2019-03-12 | 皖南医学院弋矶山医院 | Infusion bottle protection enclosure cover |
| CN108095769A (en) * | 2017-11-27 | 2018-06-01 | 成都菲斯普科技有限公司 | Integration apparatus is analyzed for the living body sampling of GI Medicine |
| CN108309359A (en) * | 2018-01-31 | 2018-07-24 | 游聚敏 | A kind of gynemetrics's amniotic fluid sampler |
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| CN109330628A (en) * | 2018-10-24 | 2019-02-15 | 高小龙 | A kind of gynemetrics's amniocentesis sampler |
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| US5000192A (en) * | 1990-01-02 | 1991-03-19 | Sealfon Andrew I | Prenatal specimen collection method |
| CN207286412U (en) * | 2017-02-24 | 2018-05-01 | 河南科技大学第一附属医院 | A kind of safety injector |
| CN107802331A (en) * | 2017-11-15 | 2018-03-16 | 成都课迪科技有限公司 | A kind of obstetrics' membrane puncture needle of multi-faceted anti-backflow |
| CN110101444A (en) * | 2019-05-31 | 2019-08-09 | 亓荣华 | Puerpera's fetal membrane rupture of membranes and amniotic fluid sample set composite |
| CN110174292A (en) * | 2019-06-29 | 2019-08-27 | 宁化宽信科技服务有限公司 | Nephrology dept.'s urine sampling, keep sample device |
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| CN110652321A (en) | 2020-01-07 |
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