CN114305621A - Negative pressure aspirator for ovum taking operation - Google Patents
Negative pressure aspirator for ovum taking operation Download PDFInfo
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- CN114305621A CN114305621A CN202111256127.6A CN202111256127A CN114305621A CN 114305621 A CN114305621 A CN 114305621A CN 202111256127 A CN202111256127 A CN 202111256127A CN 114305621 A CN114305621 A CN 114305621A
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- negative pressure
- filter
- suction apparatus
- pressure suction
- adapter
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- 210000004681 ovum Anatomy 0.000 title abstract description 31
- 102000002322 Egg Proteins Human genes 0.000 title abstract description 24
- 108010000912 Egg Proteins Proteins 0.000 title abstract description 24
- 238000000034 method Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 239000012982 microporous membrane Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
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- 238000012360 testing method Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000012864 cross contamination Methods 0.000 description 4
- 230000036512 infertility Effects 0.000 description 4
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Abstract
The invention discloses a negative pressure aspirator for an ovum taking operation, which comprises: the negative pressure suction apparatus comprises a negative pressure suction apparatus body, a negative pressure suction apparatus body and a negative pressure suction apparatus body, wherein the negative pressure suction apparatus body is provided with a negative pressure interface; the negative pressure connecting pipe is provided with a first adapter pipe and is connected with the negative pressure interface through the first adapter pipe; the first adapter tube is connected with the second adapter tube through a filter; the foot switch is connected with the negative pressure suction apparatus body through an electric wire. The filter is arranged in the disposable negative pressure connecting pipe between the negative pressure suction apparatus body and the egg taking device, and has a bidirectional protection function, so that on one hand, the phenomenon that liquid enters the negative pressure suction apparatus due to overlarge suction amount is prevented, the phenomenon that equipment is damaged and fails due to the fact that the liquid enters the negative pressure suction apparatus is avoided, meanwhile, the pedal switch is unique in structural design, and the height of two sides of the pedal switch is higher than the height of a stepping position, so that misoperation of a doctor is prevented.
Description
Technical Field
The invention relates to the technical field of body fluid drainage devices, in particular to a negative pressure suction apparatus for an ovum taking operation.
Background
Modern people defer pregnancy plans for various reasons, so that the incidence rate of infertility tends to increase year by year, the advanced age is one of the reasons for the occurrence of the infertility, in addition, the infertility is also influenced by factors such as environment, self pressure, drug abuse and the like, the incidence rate also tends to increase year by year, and more infertility patients are treated by assisted reproduction technology, particularly in vitro fertilization. Currently, human ART mainly includes intrauterine fertilization, in vitro fertilization-embryo transfer, artificial insemination, in vitro maturation of ova, injection of single sperms of oocyte plasma, freezing and thawing of ova, sperm and embryo, genetic diagnosis before transfer, and the like. The treatment aim of a patient is to obtain clinical pregnancy and healthy offspring, and the aim is to obtain high-quality ova, improve the fertility rate and finally obtain more high-quality embryos on the premise of achieving the aim, but the quality of the ova and the embryos can be influenced in a plurality of links such as clinical medication, an ovum taking operation, embryo culture-transplantation and the like. In vitro fertilization-embryo transfer (IVF-ET) cycle usually performs artificial ovarian hyperstimulation, which aims to stimulate a plurality of primordial follicles to develop synchronously to obtain more high-quality ova so as to obtain high-quality embryos for selection and transfer, and finally improve the clinical pregnancy rate.
The ovum taking operation is the first step of in-vitro operation in-vitro fertilization-embryo transplantation technical treatment, the used equipment in the ovum taking process comprises an ovum taking needle, a negative pressure suction device, a negative pressure pump connecting pipe between the negative pressure suction device and the ovum taking needle and a disposable sterile test tube, the stability of the channel of the pipeline and the negative pressure is kept in the operation, namely, the negative pressure suction device is required to be used for assisting the ovum taking work in the clinical ovum taking process, and the stability of the negative pressure suction device plays a key role in success or failure. The ovum picking operation is to suck mature oocytes from an ovarian tissue through a vagina under the guidance of B ultrasonic, is an intermediate link from the oocytes leaving a human body to a laboratory incubator for culture, and because the operation time is long, the oocytes are easily influenced by various factors, the physiological function of the oocytes can be changed, and the ovum picking process is influenced by the proficiency of an operator and the stability of the whole ovum picking channel.
In the process of taking ova, the follicular fluid in the ova is sucked by the negative pressure suction effect of the negative pressure pump, the connection cost of the commercialized negative pressure pump is high, and the commercialized negative pressure pump is generally reused after a siliconized rubber tube and a glass joint are soaked and disinfected by high temperature or disinfectant. The siliconized rubber tube and the glass joint are repeatedly used after being soaked and disinfected at high temperature or by a disinfectant, so that cross contamination and microbial contamination are caused, the more times of use, the more easily the cross contamination is caused, the cross contamination of follicular fluid is strictly prevented in the process of ovum taking, and researches show that embryo contamination in the process of in vitro fertilization can also come from the follicular fluid, and the research reports that contamination is caused by backflow of the follicular fluid in the process of ovum taking. Research suggests that the sources of embryo contamination in IVF-ET are mainly semen, follicular fluid and IVF culture system and environment, while normal follicular fluid is sterile. If microbial contamination occurs, the result is destructive, and even cross contamination in a laboratory can be caused, so that the egg cells and embryos of a patient are degenerated and dead, and finally, usable embryos cannot be obtained, thereby causing serious damage to the economy, the mind and the body of the patient.
The existing negative pressure suction apparatus is easy to generate liquid suck-back and pollution risks in the operation process, the negative pressure suction apparatus realizes the control of the starting and the closing of the negative pressure suction apparatus by stepping on a foot switch, and the existing foot switch adopts a pneumatic balloon switch, so that the sensitivity is low, and the operation is easy to miss.
Therefore, how to find a negative pressure aspirator which can prevent liquid from being sucked backwards, avoid pollution risks, control sensitivity is more sensitive than pneumatic balloon control, and electric control strength is more powerful than pneumatic balloon control strength, becomes a problem to be solved urgently at present.
Disclosure of Invention
The invention aims to provide a negative pressure suction apparatus for an ovum taking operation, which solves the problems that the negative pressure suction apparatus generates pollution risk due to liquid suck-back and has lower control sensitivity.
In order to achieve the above object, the present invention provides a negative pressure aspirator for an ovum taking operation, comprising: a negative pressure aspirator body having a negative pressure interface; the negative pressure connecting pipe is provided with a first adapter pipe and is connected with the negative pressure interface through the first adapter pipe; the first adapter tube is connected with the second adapter tube through a filter; the pedal switch is connected with the negative pressure suction apparatus body through an electric wire.
According to the invention, the filter is screwed to the first adapter tube and the second adapter tube; the filter comprises a filter housing and a filter membrane, wherein the diameter of the filter membrane is 50mm, and the pore diameter is 0.22 mu m.
According to the invention, the filter shell is made of polypropylene, and the filter membrane is a polytetrafluoroethylene microporous membrane.
According to the invention, the first adapter tube and the second adapter tube have an inner diameter of 6.5mm and an outer diameter of 11 mm.
According to the invention, the negative pressure range of the negative pressure aspirator is-10 to-500 mmHg.
According to the invention, the negative pressure aspirator body further comprises a display screen, a shell and a sealing ring for sealing the joint of the display screen and the shell.
According to the invention, the display screen is provided with a negative pressure adjusting button, and the negative pressure adjusting button comprises an ascending negative pressure adjusting key, a descending negative pressure adjusting key and a negative pressure vertical lifting key for instantly increasing the negative pressure.
According to the invention, the heights of the two sides of the foot switch are higher than the height of the middle foot position, so that a doctor can be prevented from stepping on the foot switch by mistake.
According to the invention, the foot switches comprise a self-locking foot switch and a non-self-locking foot switch mode.
According to the invention, the negative pressure connection tube is a disposable negative pressure connection tube.
The invention has the beneficial effects that:
(1) in the structure of the negative pressure aspirator, the filter is arranged in the disposable negative pressure connecting pipe between the negative pressure pump and the egg taking device, and the filter has a bidirectional protection function, so that on one hand, the phenomenon that liquid enters the negative pressure aspirator due to overlarge suction amount is prevented, and the equipment is damaged and loses efficacy due to the fact that the liquid enters the negative pressure aspirator is avoided. The existing negative pressure suction device is not provided with a filter, liquid suck-back and pollution risks are easily caused, and the structural design of the negative pressure suction device can prevent the liquid suck-back and avoid the pollution risks. On the other hand, the negative pressure pump belongs to a non-sterile product, the disposable negative pressure connecting pipe belongs to a sterile product, and when the negative pressure pump stops working and releases vacuum, vacuum gas released by the pump can be filtered, so that the gas released by the pump is prevented from polluting liquid in a test tube.
(2) The pedal switch has unique structural design, and the heights of both sides of the pedal switch are higher than the height of a foot-stepping position, so that misoperation of a doctor is prevented. In the prior art, the pedal switch adopts a pneumatic balloon switch, so that misoperation cannot be avoided, and the sensitivity is low.
(3) According to the invention, the silica gel sealing ring is designed at the joint of the display screen and the shell, and the sealing design of the silica gel sealing ring can prevent liquid from entering the negative pressure pump to cause danger in the disinfection process of a doctor, so that the safety is higher.
Drawings
Fig. 1a shows a schematic view of the overall appearance structure of the vacuum extractor of the present invention.
FIG. 1b is a schematic diagram showing the external structure of the display screen of the vacuum extractor of the present invention.
Fig. 2 shows a schematic structural diagram of a disposable negative pressure connecting pipe in the negative pressure suction apparatus of the invention.
In the figure: 1. a negative pressure aspirator body; 2. a display screen; 3. a housing; 4. a seal ring; 5. a negative pressure interface; 6. a foot switch; 7. a transfer tube; 8. a filter; 9. a connecting pipe; 10. disposable negative pressure connecting pipe.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
With reference to fig. 1 to 2, the invention provides a negative pressure suction apparatus for an ovum taking operation, which comprises a negative pressure suction apparatus body 1, and a negative pressure connecting pipe 10, a foot switch 6 and a power line which are connected with the negative pressure suction apparatus body. Wherein, the negative pressure aspirator body 1 is provided with a display screen 2, a shell 3 and a sealing ring 4 for sealing the joint of the display screen 2 and the shell 3. The negative pressure suction apparatus body 1 is internally provided with a negative pressure pump which can provide negative pressure. Display screen 2 has demonstration and operation interface, can show the negative pressure and set for the negative pressure, and casing 3 plays fixed and supporting role, and sealing washer 4 can strengthen the product sealing performance.
The display screen is provided with a negative pressure interface 5, and the negative pressure connecting pipe 10 is provided with a first adapter pipe 7 and a second adapter pipe 9 and is connected with the negative pressure interface 5 through the first adapter pipe 7. The first adapter tube 7 is connected to the second adapter tube 9 via a filter 8, preferably by means of a screw connection. The second adapter tube 9 connects the filter 8 and the ovipositor. The filter 8 can prevent liquid from being sucked back into the negative pressure pump and has a filtering effect on gas.
In a preferred embodiment of the invention, the first adapter tube 7 and the second adapter tube 9 have an inner diameter of 6.5mm and an outer diameter of 11 mm.
According to the invention, the filter 8 comprises a filter housing and a filter membrane having a diameter of 50mm and a pore size of 0.22 μm. Wherein, the filter shell is made of polypropylene material, and the filter membrane is a polytetrafluoroethylene microporous membrane. The polytetrafluoroethylene microporous membrane (PTFE) has unique node fibrillating property, smooth surface, chemical substance resistance, air permeability and water impermeability.
As shown in fig. 2, the display screen 2 is provided with a negative pressure adjustment button, and the negative pressure adjustment button includes an ascending negative pressure adjustment key, a descending negative pressure adjustment key, and a negative pressure raising key for instantly increasing the negative pressure.
Preferably, the negative pressure connection pipe 10 may be a disposable negative pressure connection pipe, which provides a negative pressure gas channel. The disposable negative pressure connecting pipe is adopted, and the using principle that one person disposes one pipe at a time is executed, so that the pollution source is stopped, and the safety of the ovum taking operation is ensured.
Wherein, the foot switch 6 is connected with the negative pressure aspirator body 1 through an electric wire and is used for controlling the state of the negative pressure pump. The negative pressure of the negative pressure aspirator can be set to two modes of mmHg and kPa, and the negative pressure range is between-10 mmHg to-500 mmHg or-1.0 kPa to-67.0 kPa.
Preferably, the foot switch 6 comprises two modes of a self-locking foot switch and a non-self-locking foot switch, wherein the non-self-locking foot switch needs to continuously step on the foot switch, the foot switch is released, negative pressure is not provided any more, and the suction is stopped; in the self-locking pedal mode, the pedal switch is needed to be stepped once to start working and stepped once again, negative pressure is not provided any more, and suction is stopped. The heights of the two sides of the foot switch 6 are preferably higher than the height of the middle foot-stepping position, so that the doctor can be prevented from stepping on the foot by mistake.
The negative pressure suction apparatus is suitable for sucking body fluid and cells, the body of the negative pressure suction apparatus is connected with a disposable negative pressure connecting pipe, the disposable negative pressure connecting pipe is connected with an ovum taking device, the ovum taking device is connected on a test tube in a test tube heater, the ovum taking device is inserted into a follicle under the ultrasonic guidance, a foot switch 6 of the negative pressure suction apparatus is stepped to suck follicular fluid, the oocyte and the follicular fluid enter a collection container test tube, and the foot switch 6 is released after the follicle is emptied. If the aspiration is not moved in the egg taking negative pressure aspiration process and blood clots are blocked, the negative pressure rising key can be clicked to instantly increase the negative pressure and break the blockage.
According to the invention, a control switch can be arranged at the rear side of the foot switch 6, the foot switch can control the negative pressure suction apparatus only by stepping on the foot, and when the operation is stable, the control switch can be turned on by stepping on the foot, so that the negative pressure suction apparatus is always in an open state, the feet of workers can be liberated, and the ovum taking operation of the workers is more convenient.
The invention can also arrange a base at the lower end of the negative pressure aspirator body, and arrange a fixed plate at the lower right corner of the base, and can arrange the used foot switch on the fixed plate for convenient storage.
According to the invention, the negative pressure aspirator body is connected with the foot switch through an electric wire, a coil spring can be arranged at the upper end of the electric wire, and the lower end of the electric wire is connected with the foot switch and the control switch. The one end setting of electric wire is on the coil spring, and after foot switch and control switch were accomodate, the electric wire was rolled up under the effect of coil spring to make the electric wire automatic receipts hold the box in, prevent to cause the confusion of electric wire.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A negative pressure aspirator for an egg extraction procedure, comprising:
the vacuum suction device comprises a vacuum suction device body (1), wherein the vacuum suction device body (1) is provided with a vacuum interface (5);
a negative pressure connection pipe (10) which has a first adapter pipe (7) and is connected to the negative pressure connection (5) via the first adapter pipe (7); the first adapter tube (7) is connected with the second adapter tube (9) through a filter (8);
and the foot switch (6) is connected with the negative pressure suction apparatus body (1) through an electric wire.
2. The vacuum extractor according to claim 1, characterized in that the filter (8) is screwed to the first adapter tube (7) and to the second adapter tube (9);
the filter (8) comprises a filter housing and a filter membrane, wherein the diameter of the filter membrane is 50mm, and the pore diameter is 0.22 mu m.
3. The vacuum extractor as claimed in claim 2, wherein the filter housing is made of polypropylene and the filter membrane is a polytetrafluoroethylene microporous membrane.
4. The vacuum extractor as claimed in claim 1, characterized in that the first adapter tube (7) and the second adapter tube (9) have an inner diameter of 6.5mm and an outer diameter of 11 mm.
5. The negative pressure extractor of claim 1, wherein the negative pressure range of the negative pressure extractor is-10 mmHg to-500 mmHg.
6. The vacuum extractor as claimed in claim 1, wherein the vacuum extractor body (1) further comprises a display screen (2), a shell (3) and a sealing ring (4) for sealing the joint of the display screen (2) and the shell (3).
7. The negative pressure aspirator according to claim 6, wherein the display screen (2) is provided with negative pressure adjusting buttons, and the negative pressure adjusting buttons comprise a rising negative pressure adjusting key, a falling negative pressure adjusting key and a negative pressure rising key for instantly increasing the negative pressure.
8. The vacuum extractor as claimed in claim 1, wherein the height of the pedal switch (6) is higher at both sides than at the middle stepping position to prevent the doctor from stepping on the pedal switch by mistake.
9. The negative pressure aspirator according to claim 8, wherein the foot switch (6) comprises a self-locking foot switch and a non-self-locking foot switch mode.
10. The negative pressure aspirator according to claim 1, characterized in that the negative pressure connection tube (10) is a disposable negative pressure connection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111256127.6A CN114305621A (en) | 2021-10-27 | 2021-10-27 | Negative pressure aspirator for ovum taking operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111256127.6A CN114305621A (en) | 2021-10-27 | 2021-10-27 | Negative pressure aspirator for ovum taking operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114305621A true CN114305621A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111256127.6A Pending CN114305621A (en) | 2021-10-27 | 2021-10-27 | Negative pressure aspirator for ovum taking operation |
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| Country | Link |
|---|---|
| CN (1) | CN114305621A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208524993U (en) * | 2017-12-04 | 2019-02-22 | 成都艾伟孚生物科技有限公司 | A kind of micromanipulation embryo transfer device |
| CN213048471U (en) * | 2020-04-30 | 2021-04-27 | 江苏大学附属医院 | Surgical aspirator for surgery |
| CN213249586U (en) * | 2020-08-24 | 2021-05-25 | 广东省妇幼保健院 | Negative pressure aspirator convenient to control |
-
2021
- 2021-10-27 CN CN202111256127.6A patent/CN114305621A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208524993U (en) * | 2017-12-04 | 2019-02-22 | 成都艾伟孚生物科技有限公司 | A kind of micromanipulation embryo transfer device |
| CN213048471U (en) * | 2020-04-30 | 2021-04-27 | 江苏大学附属医院 | Surgical aspirator for surgery |
| CN213249586U (en) * | 2020-08-24 | 2021-05-25 | 广东省妇幼保健院 | Negative pressure aspirator convenient to control |
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Application publication date: 20220412 |
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