CN214761214U - Operating handle of gynaecology and obstetrics's amniotic fluid sample conservator - Google Patents
Operating handle of gynaecology and obstetrics's amniotic fluid sample conservator Download PDFInfo
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- CN214761214U CN214761214U CN202120725319.6U CN202120725319U CN214761214U CN 214761214 U CN214761214 U CN 214761214U CN 202120725319 U CN202120725319 U CN 202120725319U CN 214761214 U CN214761214 U CN 214761214U
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- amniotic fluid
- wheel
- handle
- fluid sampling
- conveying
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- 210000004381 amniotic fluid Anatomy 0.000 title claims abstract description 99
- 238000005070 sampling Methods 0.000 claims abstract description 78
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000001802 infusion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 238000002669 amniocentesis Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010008805 Chromosomal abnormalities Diseases 0.000 description 1
- 208000031404 Chromosome Aberrations Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003754 fetus Anatomy 0.000 description 1
- 208000015978 inherited metabolic disease Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 201000010193 neural tube defect Diseases 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 208000035581 susceptibility to neural tube defects Diseases 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides an operating handle of a amniotic fluid sampling conservator in obstetrics and gynecology department, which comprises a handle main body, wherein a working chamber is arranged in the handle main body, via holes for passing the amniotic fluid sampling needles are coaxially arranged on two opposite side walls of the working chamber, and a conveying device for conveying the amniotic fluid sampling needles is arranged in the working chamber; the conveying device comprises a conveying wheel and a clamping wheel which are respectively arranged on two opposite sides of the via hole; still including being used for the drive the first drive arrangement of transfer gear pivoted, the transfer gear is followed the axial direction of via hole is in projection on the inside wall of working chamber with the via hole part is crossing, the centre gripping wheel is configured to can be being close to and keeps away from the direction motion of transfer gear, can guarantee through this kind of mode of setting that amniotic fluid sample needle is at the uniform velocity get into the patient internal, guarantee that the sample can go on safely.
Description
Technical Field
The utility model relates to a medical treatment auxiliary instrument technical field, concretely relates to handle of gynaecology and obstetrics's amniotic fluid sample conservator.
Background
Amniotic fluid is generally sampled and examined at 14 to 20 weeks of pregnancy, and amniocentesis is used to confirm whether a fetus has chromosomal abnormalities, neural tube defects, and certain inherited metabolic diseases that can be reflected in amniotic fluid. Amniotic fluid puncture, also called amniocentesis, is mostly adopted at present when amniotic fluid is sampled; the operation method is that under the guidance of ultrasonic wave, a long and thin needle passes through the belly of the pregnant woman and the wall of the uterus, enters the amniotic cavity, and then the amniotic fluid is extracted for comprehensive examination.
The patent application numbers are: CN 201720405308.3's chinese utility model patent provides an obstetrical department amniotic fluid sampler, its effect that can realize the sample of amniotic fluid and preserve, but it need press the pressure handle with the hand at the in-process of sampling to puncture to can guarantee to play the effect of buffering at the in-process of puncture and avoid hurting the foetus hard too violently through setting up elastic spring, but the degree of depth and the speed of puncture still can not be fine control puncture in actual use.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present application provides an operation handle of an amniotic fluid sampling conservator for obstetrics and gynecology department, so as to solve the technical problem that the puncture speed and depth of a puncture needle in the background art are not easy to control.
The utility model provides an operating handle of a amniotic fluid sampling conservator in obstetrics and gynecology department, which comprises a handle main body, wherein a working chamber is arranged in the handle main body, via holes for passing the amniotic fluid sampling needles are coaxially arranged on two opposite side walls of the working chamber, and a conveying device for conveying the amniotic fluid sampling needles is arranged in the working chamber; the conveying device comprises a conveying wheel and a clamping wheel which are respectively arranged on two opposite sides of the via hole; the conveying wheel is used for driving the conveying wheel to rotate, the projection of the conveying wheel on the inner side wall of the working cavity along the axial direction of the through hole is intersected with the through hole part, and the first driving device is configured to be capable of driving the clamping wheel to move in the direction close to and far away from the conveying wheel.
Specifically, medical staff can firstly slide the clamping wheel to one side far away from the conveying wheel, the amniotic fluid sampling needle extends into the working cavity from a through hole, the puncture end of the amniotic fluid sampling needle passes through the space between the clamping wheel and the conveying wheel, then the clamping wheel is close to the conveying wheel to clamp the amniotic fluid sampling needle, the other end of the amniotic fluid sampling needle is communicated with the sampling catheter through the infusion hose, when the amniotic fluid sampling needle is used, the handle main body is contacted with the skin of a sampler, the direction of the amniotic fluid sampling needle is controlled, the first driving device is controlled to work to drive the conveying wheel to rotate, the conveying wheel drives the amniotic fluid sampling needle to move towards another through hole at a constant speed, the amniotic fluid sampling needle passes through the skin of the sampler to enter the body, the second driving device is controlled to stop working after the amniotic fluid sampling needle enters a proper depth under the cooperation of an ultra-gauge, then the sampling of the amniotic fluid can be realized, and the arrangement mode can ensure that the amniotic fluid sampling needle enters the body of a patient at a constant speed, ensure that the sampling can be safely carried out.
Furthermore, the wheel surfaces of the clamping wheel and the conveying wheel are both inwards concave arc surfaces. The contact surface of the conveying wheel and the contact surface of the roller can be guaranteed through the arrangement of the arc surface, friction is increased, the conveying wheel can be effectively driven by the amniotic fluid sampling needle, and the amniotic fluid sampling needle can be positioned and guided.
Furthermore, one side of the handle main body is provided with an observation window, and the observation window at least can expose the wheel surface of the clamping wheel and the conveying wheel which are close to each other. Can observe when setting up amniotic fluid sample needle through setting up observation window, ensure that setting that amniotic fluid sample needle can be quick accurate is between centre gripping wheel and delivery wheel.
Furthermore, the first driving device comprises a first gear shaft which is rotatably arranged in the working cavity, the conveying wheel is sleeved on the first gear shaft and is in transmission connection with the first gear shaft, a driving motor is arranged on the handle main body, and an output shaft of the driving motor is in transmission connection with the first gear shaft.
Furthermore, a guide rod penetrates through the handle main body, a fixed plate is arranged at one end, penetrating into the working cavity, of the guide rod, a pressure spring is arranged between the fixed plate and the handle main body, the other end, extending out of the working cavity, of the guide rod is provided with a handle, and the clamping wheel is rotatably arranged on one surface, facing the conveying wheel, of the fixed plate.
Furthermore, the centre gripping wheel is provided with two along the axial direction interval of via hole, and two centre gripping wheel symmetry sets up the both sides of delivery wheel. Can play better centre gripping effect to amniotic fluid sample needle through setting up two centre gripping wheels, guarantee amniotic fluid sample needle can contact with the delivery wheel effectively, avoid skidding between amniotic fluid sample needle and the delivery wheel, and set up two centre gripping wheels can be better lead to amniotic fluid sample needle.
Furthermore, the observation window and the driving motor are respectively arranged on two opposite sides of the handle main body.
The utility model provides an operation handle of gynaecology and obstetrics's amniotic fluid sample conservator has following beneficial effect:
1. medical staff can firstly slide the clamping wheel to one side far away from the conveying wheel, the amniotic fluid sampling needle extends into the working cavity from a through hole, the puncture end of the amniotic fluid sampling needle passes through the space between the clamping wheel and the conveying wheel, then the clamping wheel is close to the conveying wheel to clamp the amniotic fluid sampling needle, the other end of the amniotic fluid sampling needle is communicated with the sampling catheter through the infusion hose, when in use, the handle main body is contacted with the skin of a sampler, the direction of the amniotic fluid sampling needle is controlled, the first driving device is controlled to work to drive the conveying wheel to rotate, the conveying wheel drives the amniotic fluid sampling needle to move towards another through hole at a constant speed, the amniotic fluid sampling needle passes through the skin of the sampler to enter the body, the second driving device is controlled to stop working after observing to enter a proper depth under the cooperation of super, then, the sampling of the amniotic fluid can be realized, and the uniform speed of the amniotic fluid sampling needle can be ensured to enter the body of a patient through the arrangement mode, ensure that the sampling can be safely carried out.
2. The wheel surfaces of the clamping wheel and the conveying wheel are provided with arc surfaces. The contact surface of delivery wheel and gyro wheel can be guaranteed, and increase frictional force guarantees that the delivery wheel can drive amniotic fluid sample needle effectively to can fix a position the direction to amniotic fluid sample needle.
3. Can observe when setting up amniotic fluid sample needle through setting up observation window, ensure that setting that amniotic fluid sample needle can be quick accurate is between centre gripping wheel and delivery wheel.
4. Can play better centre gripping effect to amniotic fluid sample needle through setting up two centre gripping wheels, guarantee amniotic fluid sample needle can contact with the delivery wheel effectively, avoid skidding between amniotic fluid sample needle and the delivery wheel, and set up two centre gripping wheels can be better lead to amniotic fluid sample needle.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings.
Fig. 1 is the utility model provides a structural schematic diagram of an embodiment of the operation handle of amniotic fluid sampling conservator for obstetrics and gynecology department.
Fig. 2 is a schematic structural view of another embodiment of the operating handle of the amniotic fluid sampling and storing device for obstetrics and gynecology department provided by the utility model.
Fig. 3 is the utility model provides a pair of tup subassembly schematic structure in operation handle of gynaecology and obstetrics amniotic fluid sample conservator.
Fig. 4 is the utility model provides a pair of supply circuit's of electro-magnet in gynaecology and obstetrics's amniotic fluid sample conservator's handle schematic diagram.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 4, a schematic structural diagram of an obstetrical amniotic fluid sampler provided in the background art includes a sampling bottle 1, a transparent observation window 2 is provided on a front side wall of a bottle body of the sampling bottle 1, a liquid level scale mark is provided on a window surface of the transparent observation window 2, a sampling conduit 3 is inserted into an inner cavity of the bottle body of the sampling bottle 1 in a vertical state in a sealing manner, a negative pressure short tube 4 is inserted into a top end of the bottle body of the sampling bottle 1 in a sealing manner, an air suction hose 5 is integrally connected to a tube orifice of the negative pressure short tube 4, the other end of the tube body of the air suction hose 5 is connected to an air suction short tube 6, a one-way air suction valve is provided on the tube body of the air suction short tube 6, the tube body of the air suction short tube 6 is provided at a left side position of a plate body of an upper support pressure plate 7, a lower support pressure plate 8 is provided under the plate body of the upper support pressure plate 7, a fold blade 9 is provided between the upper support pressure plate 7 and the lower support pressure plate 8, the folded blade 9 is similar to the shape of a telescopic organ blade of an accordion, a sealed compression cavity is formed among the upper supporting pressing plate 7, the folded blade 9 and the lower supporting pressing plate 8, the bottom end of a tube body of the air suction short tube 6 is communicated with the compression cavity, the right side of the air suction short tube 6 and the top end position of the compression cavity are also communicated with an air exhaust short tube 11, a one-way exhaust valve is arranged on the tube body of the air exhaust short tube 11, a compression return spring 10 is also arranged inside a cavity of the compression cavity and between the lower surface of the plate body of the upper supporting pressing plate 7 and the upper surface of the plate body of the lower supporting pressing plate 8, a transfusion hose 12 is integrally connected with the tube body at the top end of the sampling tube 3, the other end of the tube body of the transfusion hose 12 is communicated to the right side wall surface of the tail end of the tube body of the amniotic fluid sampling tube 14, the tube body of the amniotic fluid sampling tube 14 is arranged at the center position of the lumen of the amniotic fluid sampling tube 13, the amniotic fluid sampling tube is characterized in that a puncture needle head 15 is communicated with the front end of the body of the amniotic fluid sampling tube 14, a pressing handle 16 is fixedly arranged at the end part of the tail end of the body of the amniotic fluid sampling tube 14, an elastic spring 17 is arranged at a position between the rear end face of the amniotic fluid puncture tube 13 and the upper end face of the pressing handle 16 and outside the body of the amniotic fluid sampling tube 14, and the operation method is as follows: medical staff only need reciprocal press up supporting pressure plate 7 downstream with the hand, because the lower supporting pressure plate 8 of bottom keeps motionless, can make the compression cavity that whole fold blade 9 formed compress, can realize extracting fast of hose 5 atmospheric pressure in to sampling bottle 1 under the effect of nozzle stub 6 and exhaust nozzle stub 11 of breathing in, and then make and form certain negative pressure environment in sampling bottle 1, the gaseous stability has been guaranteed to the one-way suction valve and the one-way discharge valve that add on the nozzle stub, thereby draw the amniotic fluid in saying the sampling bottle.
The utility model provides an operating handle of amniotic fluid sampling conservator of obstetrics and gynecology department, refer to fig. 1-3, as a specific implementation mode, it includes handle main body 1a, be provided with working chamber 10a in the handle main body 1a, coaxial via hole 101 that supplies amniotic fluid sampling needle to pass that is provided with on two relative lateral walls of working chamber 10a, be provided with the conveyor 20 that is used for carrying amniotic fluid sampling needle in the working chamber 10 a; the conveying device 20 comprises a conveying wheel 21 and a clamping wheel 22 which are respectively arranged on two opposite sides of the via hole 101; the conveying device further comprises a second driving device 5a for driving the conveying wheel 21 to rotate, the projection of the conveying wheel 21 on the inner side wall of the working cavity 10a along the axial direction of the through hole 101 is partially intersected with the through hole 101, and the clamping wheel 22 is configured to be capable of moving in the direction close to and far away from the conveying wheel 21.
Specifically, medical staff can firstly extend the amniotic fluid sampling needle into the working cavity 10a from a through hole 101, so that the clamping wheel is far away from the conveying wheel, the puncture end of the amniotic fluid sampling needle 14 passes between the clamping wheel 22 and the conveying wheel 21, then the clamping wheel is driven to be close to the conveying wheel to clamp the amniotic fluid sampling needle, and the other end of the amniotic fluid sampling needle 14 is communicated with the sampling conduit 3 through the infusion hose 12, it should be noted that the device at the rear end of the infusion hose used in the present invention is the same as the device at the rear end of the infusion hose in the background art, and comprises a folded blade of the sampling bottle 1 and a compression return spring 10, and the detailed description of the specific structures of the sampling bottle 1 and the compression return spring 10 and the connection relationship between the two is omitted, when in use, the handle main body 1a is contacted with the skin of a sampler, the direction of the amniotic fluid sampling needle 14 is controlled, and the driving device 5a is controlled to work to drive the conveying wheel 21 to rotate, drive amniotic fluid sampling needle 14 is at the uniform velocity to another via hole 101 motion, it is internal to pass the skin entering of sampler, observe under the cooperation of B ultrasonic and get into behind the appropriate degree of depth control first drive arrangement 5a stop work, then control compression reset spring 10 work can realize the sample to the amniotic fluid, can guarantee through this kind of mode of setting that amniotic fluid sampling needle 14 is at the uniform velocity get into the patient internal, guarantee that the sample can go on safely, wherein delivery wheel 21 and the pivot parallel arrangement who adds gear 22 and all perpendicular to the axial direction of via hole.
Furthermore, a flexible arc-shaped bearing plate 18 can be arranged at one end of the handle main body 1a, which is in contact with a patient, so that the handle main body can be easily positioned by attaching the flexible arc-shaped bearing plate 18 to the belly of the patient in the actual use process.
Further, as a preferred embodiment, referring to fig. 3, the wheel surfaces of the clamping wheel 22 and the conveying wheel 21 are both arc surfaces which are recessed inwards. Can guarantee the contact surface of delivery wheel 21 and gyro wheel through setting up the arc surface, increase frictional force guarantees that the delivery wheel can drive amniotic fluid sampling needle 14 effectively to can fix a position the direction to amniotic fluid sampling needle 14.
Further, referring to fig. 1 to 3, as a preferred embodiment, an observation window 11a is provided on one side of the handle body 1a, and the observation window 11a can expose at least the wheel surface where the clamping wheel 22 and the conveying wheel 21 approach each other. Can observe when setting up amniotic fluid sample needle 14 through setting up observation window, ensure that setting that amniotic fluid sample needle 14 can be quick accurate is between centre gripping wheel and delivery wheel.
Further, as a specific implementation manner, the first driving device 5a includes a first gear shaft 210 rotatably disposed in the working cavity 10a, the conveying wheel 21 is sleeved on the first gear shaft 210 and is in transmission connection with the first gear shaft 210, a driving motor 3a is disposed on the handle main body 1a, an output shaft of the driving motor 3a is in transmission connection with the first gear shaft 210, in an actual use process, a push switch (not shown in the figure) may be disposed on the handle main body, the driving motor is controlled to operate to drive the conveying wheel to rotate by the push switch, and then the amniotic fluid sampling needle 14 is driven to advance, wherein a driving gear is disposed on the output shaft of the driving motor, the driving gear is in transmission with a gear on the first gear shaft by the driving gear, and a radius of the driving gear is smaller than a radius of a gear on the first gear shaft, the deceleration effect is achieved.
Further, as a specific implementation manner, a guide rod 40 penetrates through the handle main body 1a, a fixing plate 41 is arranged at one end of the guide rod 40 penetrating into the working cavity 10a, a pressure spring 42 is arranged between the fixing plate 41 and the handle main body 1a, a handle 43 is arranged at the other end of the guide rod 40 extending out of the working cavity 10a, and the clamping wheel 22 is rotatably arranged on the fixing plate 41. When using, thereby medical staff can keep away from the delivery wheel through hand handle 43 drive centre gripping wheel, unclamp the handle 43 back again the pressure effect of pressure spring down the centre gripping wheel to the direction motion of being close to the delivery wheel, carry out the centre gripping to amniotic fluid sample water sampling needle.
Further, as a preferred embodiment, two clamping wheels 22 are arranged at intervals along the axial direction of the via hole 101, and the two clamping wheels 22 are symmetrically arranged on two sides of the conveying wheel 21. Can play better centre gripping effect to amniotic fluid sample needle 14 through setting up two centre gripping wheels, guarantee amniotic fluid sample needle 14 can contact with the delivery wheel effectively, avoid skidding between amniotic fluid sample needle 14 and the delivery wheel 21, and set up that two centre gripping wheels can be better to amniotic fluid sample needle 14 lead.
Further, in a preferred embodiment, the observation window 11a and the driving motor 3a are respectively disposed on opposite sides of the handle body 1 a.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. The operating handle of the amniotic fluid sampling conservator in obstetrics and gynecology department is characterized in that a handle main body (1 a) is arranged in the handle main body (1 a), a working cavity (10 a) is arranged in the handle main body (1 a), through holes (101) for the amniotic fluid sampling needles to pass through are coaxially arranged on two opposite side walls of the working cavity (10 a), and a conveying device (20) for conveying the amniotic fluid sampling needles is arranged in the working cavity (10 a); the conveying device (20) comprises a conveying wheel (21) and a clamping wheel (22) which are arranged on two opposite sides of the through hole (101) respectively, and further comprises a first driving device (5 a) for driving the conveying wheel (21) to rotate, the projection of the conveying wheel (21) on the inner side wall of the working cavity (10 a) along the axial direction of the through hole (101) is intersected with the part of the through hole (101), and the clamping wheel (22) is configured to be capable of moving in the direction close to and far away from the conveying wheel (21).
2. The operating handle of amniotic fluid sampling conservator according to claim 1, wherein the wheel surface of the clamping wheel (22) and the wheel surface of the conveying wheel (21) are both concave arc surfaces.
3. The operating handle of amniotic fluid sampling and storing device according to claim 2, wherein a viewing window (11 a) is provided on one side of the handle body (1 a), and the viewing window (11 a) can at least expose the wheel surface where the clamping wheel (22) and the delivery wheel (21) are close to each other.
4. The operating handle of amniotic fluid sampling conservator according to claim 3, wherein the first driving device (5 a) comprises a first gear shaft (210) rotatably arranged in the working cavity (10 a), the conveying wheel (21) is sleeved on the first gear shaft (210) and is in transmission connection with the first gear shaft (210), the handle body (1 a) is provided with a driving motor (3 a), and the output shaft of the driving motor (3 a) is in transmission connection with the first gear shaft (210).
5. The operating handle of an gynaecology and obstetrics amniotic fluid sampling conservator according to claim 4, characterized in that, wear to be equipped with guide arm (40) on handle main body (1 a), the one end that guide arm (40) penetrated working chamber (10 a) is provided with fixed plate (41), fixed plate (41) with be provided with pressure spring (42) between handle main body (1 a), guide arm (40) stretches out the other end of working chamber (10 a) is provided with handle (43), centre gripping wheel (22) rotate to set up fixed plate (41) towards on the one side of delivery wheel (21).
6. The operating handle of amniotic fluid sampling conservator according to claim 5, wherein two clamping wheels (22) are arranged at intervals along the axial direction of the through hole (101), and the two clamping wheels (22) are symmetrically arranged at two sides of the conveying wheel (21).
7. The handle of amniotic fluid sampling conservator according to any of claims 4-6, wherein the observation window (11 a) and the driving motor (3 a) are separately arranged on two opposite sides of the handle body (1 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120725319.6U CN214761214U (en) | 2021-04-09 | 2021-04-09 | Operating handle of gynaecology and obstetrics's amniotic fluid sample conservator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120725319.6U CN214761214U (en) | 2021-04-09 | 2021-04-09 | Operating handle of gynaecology and obstetrics's amniotic fluid sample conservator |
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| Publication Number | Publication Date |
|---|---|
| CN214761214U true CN214761214U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120725319.6U Expired - Fee Related CN214761214U (en) | 2021-04-09 | 2021-04-09 | Operating handle of gynaecology and obstetrics's amniotic fluid sample conservator |
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| Country | Link |
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| CN (1) | CN214761214U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117643481A (en) * | 2024-01-30 | 2024-03-05 | 佳木斯大学 | Anti-blocking amniotic fluid sampler for obstetrics and gynecology department |
-
2021
- 2021-04-09 CN CN202120725319.6U patent/CN214761214U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117643481A (en) * | 2024-01-30 | 2024-03-05 | 佳木斯大学 | Anti-blocking amniotic fluid sampler for obstetrics and gynecology department |
| 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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