CN112138444A - Gynaecology and obstetrics attracts filter equipment with fine hair - Google Patents
Gynaecology and obstetrics attracts filter equipment with fine hair Download PDFInfo
- Publication number
- CN112138444A CN112138444A CN202011111169.6A CN202011111169A CN112138444A CN 112138444 A CN112138444 A CN 112138444A CN 202011111169 A CN202011111169 A CN 202011111169A CN 112138444 A CN112138444 A CN 112138444A
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- China
- Prior art keywords
- shell
- fixedly connected
- obstetrics
- rubber sleeve
- nap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract 3
- 238000005086 pumping Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 9
- 210000004027 cell Anatomy 0.000 description 5
- 210000003756 cervix mucus Anatomy 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000002380 cytological effect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 210000000349 chromosome Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012631 diagnostic technique Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001605 fetal effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 210000002826 placenta Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- 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
-
- 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
- A61B10/02—Instruments for taking cell samples or for biopsy
-
- 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
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0291—Instruments for taking cell samples or for biopsy for uterus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- 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
- A61B2010/0074—Vaginal or cervical secretions
Abstract
The invention provides a villus suction and filtration device for obstetrics and gynecology department, and relates to the field of medical appliances. This gynaecology and obstetrics attracts filter equipment with fine hair, which comprises an outer shell, the upper end middle part fixedly connected with go-between of shell, be provided with the rubber sleeve on the go-between, the lower extreme of rubber sleeve runs through to the inside of shell, the upper end of rubber sleeve is provided with solid fixed ring, gu fixed ring detains on the go-between, the middle part of rubber sleeve runs through and is provided with the top tube, the lower extreme fixedly connected with low tube of top tube, the upper portion inner wall fixedly connected with supporting network of low tube, the upper end of supporting network is provided with filter paper, the top and the below of filter paper all are provided with the second sealing washer, the below fixedly connected with base of shell, the inside of base is provided with the water catch bowl, the upper end of shell is provided with the upper cover, the top of upper. The negative pressure mode is adopted to improve the filtering speed, and the device is easy to disassemble and clean.
Description
Technical Field
The invention relates to the field of medical appliances, in particular to a villus suction and filtration device for obstetrics and gynecology department.
Background
The examination of villi is also called "villus puncture" or "villus cell examination". In the 70 s, it was found that chorionic cells could be present in cervical mucus of pregnant women after shedding, a finding that provided a shortcut for fetal cell analysis. With the development of modern medical technology, such as the application of ultrasonic imaging technology, the method for obtaining villous materials is no longer limited to cervical mucus: the villus tissue in the placenta can be taken out through vagina or abdomen for cell culture, molecular genetics or biochemical genetics examination, chromosome diagnosis or gene diagnosis under the ultrasonic guided downward puncture. Villous cell examination is a new prenatal diagnostic technique that has developed in recent years. It mainly uses a thin plastic tube or metal tube, and passes through the uterine orifice of pregnant woman, and enters into the uterus along the uterine wall, and absorbs a small amount of villus to make cytological examination.
For cytological assays, it is desirable to filter the cells from the cervical mucus. The existing device has simple structure, but is inconvenient to clean. And most of the existing devices adopt a negative pressure mode to improve the filtering speed, but an external air source is needed to provide negative pressure, the use of the device can depend on other equipment, and the problem of inconvenient use exists in practical use.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a villus suction and filtration device for obstetrics and gynecology department, which solves the problems that the prior device is inconvenient to clean and needs other equipment to provide negative pressure source.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a villus suction and filtration device for obstetrics and gynecology department comprises a shell, wherein a connecting ring is fixedly connected with the middle part of the upper end of the shell, a rubber sleeve is arranged on the connecting ring, the lower end of the rubber sleeve penetrates into the shell, a fixing ring is arranged at the upper end of the rubber sleeve, the fixing ring is buckled on the connecting ring, the fixing ring and the connecting ring are matched with the rubber sleeve to form interference fit, an upper pipe penetrates through the middle part of the rubber sleeve, a convex ring is fixedly connected with the upper side wall of the upper pipe, the lower part of the convex ring is contacted with the upper end of the fixing ring, a lower pipe is fixedly connected with the lower end of the upper pipe, the upper inner wall of the lower pipe is fixedly connected with a supporting net, filter paper is arranged at the upper end of the supporting net, second sealing rings are arranged above and below the filter paper, and the second sealing, the filter paper is characterized in that a second sealing ring below the filter paper is fixedly connected with the upper end of the lower pipe, a base is fixedly connected with the lower portion of the shell, a water collecting tank is arranged inside the base, an upper cover is arranged at the upper end of the shell, a first magnet is fixedly connected with the middle of the upper end of the upper cover, and an air pumping device is arranged above the upper cover.
Preferably, the air pumping device comprises a bottom shell, the middle part of the lower end of the bottom shell is fixedly connected with a second magnet, and the first magnet and the second magnet are attracted with each other.
Preferably, the edge of the upper end of the bottom shell is fixedly connected with a pressing layer, the middle of the upper end of the bottom shell is fixedly connected with a return spring, the upper end of the return spring abuts against the middle of the pressing layer, and one side of the upper end of the bottom shell is fixedly connected with a one-way air valve.
Preferably, one side of the air pumping device is fixedly connected with a hose, the other end of the hose is fixedly connected with the side wall of the upper part of the shell, and the inner cavity of the shell is communicated with the inner cavity of the air pumping device through the hose.
Preferably, the inner wall of the upper cover is fixedly connected with a hinge, and the upper cover is rotatably connected with the shell through the hinge.
Preferably, the side wall of the shell is fixedly connected with two bundling pieces.
Preferably, a first sealing ring is arranged at the joint of the shell and the base, and the shell and the base are in threaded connection.
Preferably, the side wall of the upper part of the water collecting tank is provided with a convex ring, and the upper part of the convex ring is provided with a sponge block.
Preferably, the diameter of the section of the lower end of the rubber sleeve is smaller than that of the section of the upper end of the rubber sleeve.
(III) advantageous effects
The invention provides a villus suction and filtration device for obstetrics and gynecology department. The method has the following beneficial effects:
1. the invention is provided with the air pumping device which can pump out the air in the shell to generate negative pressure and improve the filtering speed, and the arranged pump device ensures that the device can be used independently without depending on other equipment to provide a negative pressure source.
2. The filter paper is disposable, and compared with the arrangement of a filter screen, the difficulty in cleaning the device can be reduced.
3. According to the invention, the fixed ring and the connecting ring are connected in an interference fit manner, so that the rubber sleeve is convenient to disassemble, clean and replace, and meanwhile, after the upper pipe is inserted into the rubber sleeve, the inner wall of the lower part of the rubber sleeve is tightly attached to the side wall of the upper pipe, so that the air tightness of the device is ensured.
4. According to the invention, the sponge block is arranged in the water collecting tank, and the filtrate is directly dripped on the sponge block, so that the sputtering of the filtrate is avoided, the pollution of the filtrate to the inner wall of the shell is reduced, and the cleaning difficulty is favorably reduced.
Drawings
FIG. 1 is a side schematic view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of the pumping device of the present invention;
FIG. 4 is a schematic view of the structure of the rubber sleeve of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 2.
Wherein, 1, a bundling piece; 2. a hose; 3. a base; 4. a first seal ring; 5. a housing; 6. a pumping device; 7. an upper cover; 8. a water collection tank; 9. a sponge block; 10. a lower pipe; 11. feeding a pipe; 12. a rubber sleeve; 13. a connecting ring; 14. a fixing ring; 15. a first magnet; 16. a hinge; 17. pressing the layer; 18. a bottom case; 19. a second magnet; 20. a return spring; 21. a one-way air valve; 22. a second seal ring; 23. a support net; 24. and (5) filter paper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-5, the embodiment of the invention provides a villus suction and filtration device for obstetrics and gynecology department, which comprises a shell 5, wherein a connecting ring 13 is fixedly connected to the middle part of the upper end of the shell 5, a rubber sleeve 12 is arranged on the connecting ring 13, the lower end of the rubber sleeve 12 penetrates into the shell 5, a fixing ring 14 is arranged at the upper end of the rubber sleeve 12, the fixing ring 14 is buckled on the connecting ring 13, the fixing ring 14 and the connecting ring 13 are matched with the rubber sleeve 12 to form interference fit, the rubber sleeve 12 can be conveniently replaced in a fixing mode, meanwhile, when the device is cleaned, the components are easy to detach and can be sufficiently cleaned, an upper pipe 11 is arranged in the middle part of the rubber sleeve 12 in a penetrating manner, a convex ring is fixedly connected to the side wall of the upper part of the upper pipe 11, the lower part of the convex ring is contacted with the, the upper portion inner wall fixedly connected with supporting network 23 of low tube 10, the upper end of supporting network 23 is provided with filter paper 24, filter paper 24 below sets up supporting network 23, can reduce filter paper 24 damaged probability when filtering, filter paper 24's top and below all are provided with second sealing washer 22, the setting of second sealing washer 22, can fix filter paper 24, avoid having the clearance simultaneously between filter paper 24 edge and top tube 11 or the low tube 10, influence filtering operation, the second sealing washer 22 of filter paper 24 top and the lower extreme fixed connection of top tube 11, the second sealing washer 22 of filter paper 24 below and the upper end of low tube 10 link firmly, the below fixedly connected with base 3 of shell 5, the inside of base 3 is provided with water catch bowl 8, the upper end of shell 5 is provided with upper cover 7, the upper end middle part fixedly connected with first magnet 15 of upper cover 7, the top of upper cover 7 is provided with pump gas device 6.
The air pumping device 6 comprises a bottom shell 18, a second magnet 19 is fixedly connected to the middle of the lower end of the bottom shell 18, a first magnet 15 and the second magnet 19 are mutually attracted, the air pumping device 6 is convenient to take off for use, meanwhile, when the air pumping device is not used, the integrity of the device can be improved, the carrying of the device is convenient, a pressing layer 17 is fixedly connected to the edge of the upper end of the bottom shell 18, a reset spring 20 is fixedly connected to the middle of the upper end of the bottom shell 18, the upper end of the reset spring 20 abuts against the middle of the pressing layer 17, a one-way air valve 21 is fixedly connected to one side of the upper end of the bottom shell 18, air in the air pumping device 6 can be discharged through the one-way air valve 21, but air cannot be injected into the air pumping device 6 through the one-way air valve 21, a hose 2 is fixedly connected to one side of the air pumping device 6, the other end of the hose, inner wall fixedly connected with hinge 16 of upper cover 7, upper cover 7 rotates through hinge 16 and shell 5 to be connected, the lateral wall fixedly connected with of shell 5 is restrainted 1, and the quantity of restrainting 1 is two, the device is when not using, hose 2 can twine on restrainting 1, be convenient for arrange in order, shell 5 and base 3 junction are provided with first sealing washer 4, shell 5 and base 3 are threaded connection, the upper portion lateral wall of water catch bowl 8 is provided with the bulge loop, and the upper portion of bulge loop is provided with sponge piece 9, the direct drippage of filtrating is on sponge piece 9, avoid the sputtering of filtrating, the diameter that is less than the upper end cross-section of the lower extreme cross-section diameter of rubber sleeve 12, make the lower part inner wall of rubber sleeve 12 and the lateral wall of upper tube 11 closely laminate, the gas tightness of device has been guaranteed, this mode is fixed simple simultaneously, easy operation.
The working principle is as follows: when the invention is used, the pumping device 6 is taken down from the upper cover 7, the upper cover 7 is rotated and opened, the upper pipe 11 is taken out, the lower pipe 10 is rotated to be separated from the upper pipe 11, the circular filter paper 24 is prevented from being arranged above the upper part of the lower pipe 10, namely the supporting net 23, the edge of the circular filter paper 24 is contacted with the second sealing ring 22, the upper pipe 11 and the lower pipe 10 are connected in a threaded manner and are placed back to the inner part of the shell 5, the cross section diameter of the lower end of the rubber sleeve 12 is smaller than that of the upper end, so that the lower end of the rubber sleeve 12 is tightly attached to the outer wall of the upper pipe 11, then the filtered liquid is poured into the upper pipe 11, then the pumping device 6 is pressed, the one-way air valve 21 exhausts the gas in the inner space of the pumping device 6, after the pressing is finished, the pressing layer 17 is restored under the action of the reset spring 20, simultaneously the gas in the shell 5 is sucked out, the filtrating falls into the water catch bowl 8 that 3 upper ends of base set up, and the inside of water catch bowl 8 is provided with sponge piece 9, and filtrating directly drips on sponge piece 9, avoids the sputtering of filtrating, after filtering, can rotate and lift base 3 off, takes out the filtrating in the water catch bowl 8, and detachable base 3 is convenient for wash the inside of shell 5 simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A gynaecology and obstetrics attracts filter equipment with fine hair, includes shell (5), its characterized in that: the upper end middle part fixedly connected with go-between (13) of shell (5), be provided with rubber sleeve (12) on go-between (13), the lower extreme of rubber sleeve (12) runs through to the inside of shell (5), the upper end of rubber sleeve (12) is provided with solid fixed ring (14), gu fixed ring (14) detains on go-between (13), gu fixed ring (14) and go-between (13) cooperation rubber sleeve (12) form interference fit, the middle part of rubber sleeve (12) runs through and is provided with top tube (11), the upper portion lateral wall fixedly connected with bulge loop of top tube (11) and the lower part of bulge loop and the upper end contact of solid fixed ring (14), the lower extreme fixedly connected with low tube (10) of top tube (11), threaded connection between low tube (10) and top tube (11), the upper portion inner wall fixedly connected with supporting mesh (23) of low tube (10), the upper end of supporting network (23) is provided with filter paper (24), the top and the below of filter paper (24) all are provided with second sealing washer (22), the lower extreme fixed connection of second sealing washer (22) and upper tube (11) of filter paper (24) top, second sealing washer (22) and the upper end of low tube (10) of filter paper (24) below link firmly, the below fixedly connected with base (3) of shell (5), the inside of base (3) is provided with water catch bowl (8), the upper end of shell (5) is provided with upper cover (7), the first magnet (15) of upper end middle part fixedly connected with of upper cover (7), the top of upper cover (7) is provided with pump gas device (6).
2. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: the air pumping device (6) comprises a bottom shell (18), the middle of the lower end of the bottom shell (18) is fixedly connected with a second magnet (19), and the first magnet (15) and the second magnet (19) are attracted with each other.
3. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 2, wherein: the upper end edge of the bottom shell (18) is fixedly connected with a pressing layer (17), the middle of the upper end of the bottom shell (18) is fixedly connected with a return spring (20), the upper end of the return spring (20) is propped against the middle of the pressing layer (17), and one-way air valves (21) are fixedly connected to one side of the upper end of the bottom shell (18).
4. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: one side fixedly connected with hose (2) of pump gas device (6), the other end of hose (2) and the upper portion lateral wall fixed connection of shell (5), the inside cavity of shell (5) is through the inside cavity intercommunication of hose (2) and pump gas device (6).
5. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: the inner wall of the upper cover (7) is fixedly connected with a hinge (16), and the upper cover (7) is rotatably connected with the shell (5) through the hinge (16).
6. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: the side wall of the shell (5) is fixedly connected with two bundling pieces (1), and the number of the bundling pieces (1) is two.
7. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: the joint of the shell (5) and the base (3) is provided with a first sealing ring (4), and the shell (5) and the base (3) are in threaded connection.
8. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: the upper side wall of the water collecting tank (8) is provided with a convex ring, and the upper part of the convex ring is provided with a sponge block (9).
9. A sucking and filtering device for nap of obstetrics and gynecology department according to claim 1, wherein: the diameter of the section of the lower end of the rubber sleeve (12) is smaller than that of the section of the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111169.6A CN112138444A (en) | 2020-10-16 | 2020-10-16 | Gynaecology and obstetrics attracts filter equipment with fine hair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011111169.6A CN112138444A (en) | 2020-10-16 | 2020-10-16 | Gynaecology and obstetrics attracts filter equipment with fine hair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112138444A true CN112138444A (en) | 2020-12-29 |
Family
ID=73952057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011111169.6A Pending CN112138444A (en) | 2020-10-16 | 2020-10-16 | Gynaecology and obstetrics attracts filter equipment with fine hair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112138444A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080213877A1 (en) * | 2005-02-05 | 2008-09-04 | Richard Hicks | Filtration Device For Biological Samples |
| CN204453258U (en) * | 2015-01-22 | 2015-07-08 | 吕际云 | A kind of seal food tank |
| CN204909942U (en) * | 2015-07-01 | 2015-12-30 | 陕西国际商贸学院 | Uropoiesis is splashproof water collector for surgery |
| CN109875613A (en) * | 2019-04-08 | 2019-06-14 | 郑州大学第一附属医院 | A kind of obstetrics and gynecology department villus attraction filter |
| CN210812804U (en) * | 2019-05-15 | 2020-06-23 | 宁儿医院股份有限公司 | Filter type disposable negative pressure suction device |
-
2020
- 2020-10-16 CN CN202011111169.6A patent/CN112138444A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080213877A1 (en) * | 2005-02-05 | 2008-09-04 | Richard Hicks | Filtration Device For Biological Samples |
| CN204453258U (en) * | 2015-01-22 | 2015-07-08 | 吕际云 | A kind of seal food tank |
| CN204909942U (en) * | 2015-07-01 | 2015-12-30 | 陕西国际商贸学院 | Uropoiesis is splashproof water collector for surgery |
| CN109875613A (en) * | 2019-04-08 | 2019-06-14 | 郑州大学第一附属医院 | A kind of obstetrics and gynecology department villus attraction filter |
| CN210812804U (en) * | 2019-05-15 | 2020-06-23 | 宁儿医院股份有限公司 | Filter type disposable negative pressure suction device |
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