CN209984273U - Fetal reduction device for multiple pregnancy - Google Patents
Fetal reduction device for multiple pregnancy Download PDFInfo
- Publication number
- CN209984273U CN209984273U CN201920375897.4U CN201920375897U CN209984273U CN 209984273 U CN209984273 U CN 209984273U CN 201920375897 U CN201920375897 U CN 201920375897U CN 209984273 U CN209984273 U CN 209984273U
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- CN
- China
- Prior art keywords
- tube
- negative pressure
- guide tube
- crushing
- pipe
- 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.)
- Expired - Fee Related
Links
- 208000034702 Multiple pregnancies Diseases 0.000 title claims abstract description 21
- 230000009467 reduction Effects 0.000 title claims description 6
- 230000001605 fetal effect Effects 0.000 title description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 15
- 210000003754 fetus Anatomy 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000035935 pregnancy Effects 0.000 claims 1
- 210000001161 mammalian embryo Anatomy 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 14
- 210000002257 embryonic structure Anatomy 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 7
- 231100000176 abortion Toxicity 0.000 abstract description 6
- 206010000210 abortion Diseases 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001338 necrotic effect Effects 0.000 abstract description 3
- 230000002980 postoperative effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000036244 malformation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000001215 vagina Anatomy 0.000 description 2
- 206010058314 Dysplasia Diseases 0.000 description 1
- 208000005107 Premature Birth Diseases 0.000 description 1
- 206010036590 Premature baby Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 210000002458 fetal heart Anatomy 0.000 description 1
- 208000000509 infertility Diseases 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 231100000535 infertility Toxicity 0.000 description 1
- 231100000533 low birth weight Toxicity 0.000 description 1
- 208000018773 low birth weight Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005360 mashing Methods 0.000 description 1
- 230000008774 maternal effect Effects 0.000 description 1
- 230000016087 ovulation Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses a fetus-reducing device for multiple pregnancy, which comprises a guide tube, a crushing tube and a negative pressure suction tube; broken pipe and vacuum aspiration pipe can overlap and locate in the guide tube, the tip of broken pipe has broken mechanism, the terminal surface that the vacuum aspirates the pipe is the closed form, sets up a plurality of through-holes backward from the terminal surface, the outside of through-hole has elastic safety cover, the vacuum aspirates the pipe and passes the axis of safety cover and with safety cover fixed connection. The utility model provides a subtract child device for multiple pregnancy, during the operation, earlier puncture the guide tube to embryo department, pass broken pipe in the guide tube, broken mechanism smashes the embryo to pieces the back and takes out broken pipe, attract the pipe with the negative pressure and pass in the guide tube, cover the safety cover to suction region, can improve the suction effect, reduce remaining necrotic tissue, and the safety cover can form the guard action to tissue and other embryos on every side, effectively avoid the harm that the suction in-process led to the fact tissue and embryo on every side, postoperative abortion rate has been reduced.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a subtract child device for multiple pregnancy.
Background
With the application of ovulation promoting technology, artificial conception and other assisted reproduction technologies, on one hand, the method brings the hope of infant breeding for patients with infertility, but on the other hand, the multiple pregnancy is increased. Since the multiple pregnancy is easy to cause abortion, premature birth, low birth weight and the like, the survival of the fetus is difficult to ensure, the complications of the pregnant woman are increased, and the health of the pregnant woman and the health of the fetus are seriously influenced and even threatened. In the past, the method of abortion or conception for the development of the multiple pregnancy is generally adopted, and in recent years, the number of delivered fetuses can be safely and effectively controlled by using the fetal reduction technique, the survival rate of the fetuses is improved, and the damage of the multiple pregnancy to the mothers and the babies is greatly reduced. Fetal reduction is a technique for terminating the continued development of dysplasia, malformation, or excess fetuses during multiple gestation to reduce maternal and fetal complications and ensure the normal survival and development of healthy fetuses.
Currently, there are three main methods for fetal reduction: the embryo suction method, the medicine injection method and the mechanical destruction method are suitable for 6-8 gestational weeks, but embryos more than 8 gestational weeks are difficult to suck out due to the fact that the embryos are too large; the possibility of repeated fetal heart beats exists in the drug injection method, and the injected drugs can enter other embryos through blood circulation traffic branches existing among the embryos, so that the possibility of embryo abortion retention and newborn malformation is increased; the mechanical disruption method has large operation amplitude of uterine cavity, long operation time, more residual necrotic tissues and difficulty in complete aspiration, and can damage surrounding tissues or embryos when the crushed embryos are aspirated, thus increasing the postoperative abortion rate.
SUMMERY OF THE UTILITY MODEL
For solving prior art, the embryo that subtracts the fetal art existence not suitable for more than 8 weeks, medicine injection can lead to other embryo deformities, the residual tissue is many, the suction process can produce the technical problem of harm to surrounding tissue, the technical scheme of the utility model is as follows:
the utility model relates to a fetus-reducing device for multiple pregnancy, which comprises a guide tube, a crushing tube and a negative pressure suction tube; the port of the guide tube is an acute inclined plane, the crushing tube and the negative pressure suction tube can be sleeved in the guide tube, the end part of the crushing tube is provided with a crushing mechanism, the end face of the negative pressure suction tube is closed, a plurality of through holes are formed backwards from the end face, a protective cover is arranged outside the through holes, and the negative pressure suction tube penetrates through a center shaft of the protective cover and is fixedly connected with the protective cover.
Further, crushing mechanism includes helical blade and motor, helical blade includes four cutting pieces, four cutting pieces arranges as the center along the output shaft of motor.
Further, the tail end of the cutting blade extends perpendicularly to the direction far away from the motor.
Furthermore, a plurality of universal balls are circumferentially arranged at the position, close to the motor, of the crushing pipe, and the diameter of a circle formed by the outer ends of the universal balls is equal to the inner diameter of the guide pipe.
Furthermore, the tail end of the crushing pipe is provided with a controller, and the controller is connected with the control end of the motor through a lead or a wireless communication module.
Further, the tail end of the negative pressure suction tube is connected with a negative pressure suction device.
Furthermore, the number of the through holes is 2-8, the through holes are arranged in 1-2 rows and are distributed by taking the central axis of the negative pressure suction tube as the center.
Further, the shape of the through hole is oval or circular.
Furthermore, the number of through-holes is 3, is 1 row evenly distributed, and the shape is the ellipse.
Further, the material of the protective cover is elastomer or rubber.
The utility model provides a subtract child device for multiple pregnancy, compare with prior art, its beneficial effect is:
the utility model provides a subtract child device for multiple pregnancy, during the operation, earlier puncture the guide tube to embryo department, pass broken pipe in the guide tube, broken mechanism smashes the embryo to pieces the back and takes out broken pipe, attract the pipe with the negative pressure and pass in the guide tube, cover the safety cover to suction region, can improve the suction effect, reduce remaining necrotic tissue, and the safety cover can form the guard action to tissue and other embryos on every side, effectively avoid the harm that the suction in-process led to the fact tissue and embryo on every side, postoperative abortion rate has been reduced.
Drawings
FIG. 1 is a schematic view of a guide tube and a crushing tube according to the present invention;
FIG. 2 is a schematic view of a crushing tube according to the present invention;
FIG. 3 is a schematic view of the vacuum suction tube of the present invention;
FIG. 4 is a schematic view of a crushing tube according to an embodiment of the present invention;
fig. 5 is a schematic view of a guide tube and a negative pressure suction tube according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, the device for reducing the fetal volume of multiple pregnancy in the present invention comprises a guide tube 1, a crushing tube 2 and a negative pressure suction tube 3; the crushing tube 2 and the negative pressure suction tube 3 can be sleeved in the guide tube 1, the end part of the crushing tube 2 is provided with a crushing mechanism, the end surface of the negative pressure suction tube 3 is closed, a plurality of through holes 31 are formed backwards from the end surface, the outside of the through holes 31 is provided with a protective cover 32, and the negative pressure suction tube 3 penetrates through the middle shaft of the protective cover 32 and is fixedly connected with the protective cover 32. The port of the guide tube 1 is a sharp inclined surface according to the puncture requirement, and can be used for vagina and abdomen puncture. The auxiliary equipment is abdominal type B ultrasonic or female type B ultrasonic. Taking the example of vagina entering, during operation, the guide tube 1 is guided by the guide frame of the negative type B ultrasonic probe, after the puncture is carried out to the operation position, the crushing tube 2 is penetrated through the guide tube 1, the crushing mechanism crushes the embryo and then takes out the crushing tube 2, the negative pressure suction tube 3 is penetrated through the guide tube 1, and the crushed embryo is sucked out, and as the crushed embryo is sucked, the surrounding tissues or the embryo can be damaged, the protective cover 32 is designed, the suction position is covered and then the suction is carried out, so that the damage to the normal embryo or the human body tissue can be effectively avoided.
Preferably, the crushing mechanism comprises a helical blade 21 and a motor 22, the helical blade 21 comprises four cutting blades, and the four cutting blades are arranged along an output shaft of the motor 22 as a center.
As shown in fig. 4, the end of the cutting blade may also be extended vertically away from the motor 22 to provide a cutting effect in the longitudinal direction of the crushing mechanism, depending on the operational requirements.
As shown in fig. 1, in order to avoid the motor 22 from swinging left and right during rotation and causing poor crushing controllability, the crushing tube 2 and the guide tube 1 may be designed to be in interference fit, but the above situation may cause excessive resistance to movement of the crushing tube 2 in the guide tube 1, therefore, a plurality of universal balls 23 are circumferentially disposed at positions of the crushing tube 2 close to the motor 22, a circular diameter formed by outer ends of the universal balls 23 is equal to an inner diameter of the guide tube 1, a bottom of the motor 22 is supported by the universal balls 23, and the crushing tube 2 and the guide tube 1 are slidably connected by the universal balls 23, and functions of: firstly, the resistance of the crushing tube 2 moving in the guide tube 1 can be reduced, and secondly, the shaking of the motor 22 during rotation can be prevented, and the controllability during crushing is improved.
The tail end of the crushing pipe 2 is provided with a controller 24, the controller 24 is connected with the control end of the motor 22 through a lead or through a wireless communication module, and the controller 24 controls the starting and stopping of the crushing mechanism.
As shown in fig. 5, the tip of the negative pressure suction tube 3 is connected to a negative pressure suction unit 33.
The number of the through holes 31 is 2-8, and the through holes are arranged in 1-2 rows and are arranged by taking the central axis of the negative pressure suction tube 3 as the center. The shape of the through-hole 31 is an ellipse or a circle.
Preferably, the number of the through holes 31 is 3, the through holes are uniformly distributed in 1 row, the shape is an ellipse, and the oval through holes 31 can absorb embryo tissues with large volume.
Since the opening of the protective cover 32 is larger than the diameter of the guide tube 1, the protective cover 32 is compressed and deformed when passing through the guide tube 1, and can recover the shape when extending out of the guide tube 1, and preferably, the protective cover 32 is made of elastomer or rubber.
The device also comprises a syringe which can extend into the guide tube 1, and the tail end of the syringe is connected with an injector. When the fetus is large, the tissues are more and the fetus cannot be completely sucked out, the fetus can be killed by adding medicines on the basis of mashing and sucking the tissues, and the specific operation process is as follows: the injection tube is inserted from the guide tube 1, the embryo is inserted under the instruction of B ultrasonic, and the medicine is injected by the injector connected with the end.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The fetus reduction device for the multiple pregnancy is characterized by comprising a guide tube, a crushing tube and a negative pressure suction tube; the port of the guide tube is an acute inclined plane, the crushing tube and the negative pressure suction tube can be sleeved in the guide tube, the end part of the crushing tube is provided with a crushing mechanism, the end face of the negative pressure suction tube is closed, a plurality of through holes are formed backwards from the end face, the outside of each through hole is provided with an elastic protective cover, and the negative pressure suction tube penetrates through a center shaft of the protective cover and is fixedly connected with the protective cover.
2. The tire-reducing device for multiple pregnancy as claimed in claim 1, wherein the breaking mechanism comprises a helical blade and a motor, the helical blade comprises four cutting blades, and the four cutting blades are arranged along an output shaft of the motor as a center.
3. A tire-reducing device for multiple pregnancy as claimed in claim 2, wherein the tips of the cutting blades extend perpendicularly away from the motor.
4. The device for reducing the number of tires for multiple pregnancy according to claim 2 or 3, characterized in that, the position of the crushing tube near the motor is provided with a plurality of universal balls circumferentially, and the diameter of the circle formed by the outer ends of the universal balls is equal to the inner diameter of the guide tube.
5. The device for reducing the number of pregnancies according to claim 4, wherein the end of the crushing tube is provided with a controller, and the controller is connected with the control end of the motor through a lead or a wireless communication module.
6. The device of claim 1, wherein the end of the negative pressure suction tube is connected to a negative pressure suction device.
7. The device of claim 6, wherein the number of through holes is 2-8, are in 1-2 rows and are arranged with the central axis of the negative pressure suction tube as the center.
8. A tyre minus device for multiple pregnancies according to claim 7, characterized in that the shape of the through hole is oval or circular.
9. A tyre reducing device for multiple pregnancies according to claim 8, characterized in that the number of through holes is 3, evenly distributed in 1 row and oval in shape.
10. A tyre detraining device for multiple pregnancies according to claim 9, wherein the material of the protective cover is an elastomer or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375897.4U CN209984273U (en) | 2019-03-21 | 2019-03-21 | Fetal reduction device for multiple pregnancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375897.4U CN209984273U (en) | 2019-03-21 | 2019-03-21 | Fetal reduction device for multiple pregnancy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209984273U true CN209984273U (en) | 2020-01-24 |
Family
ID=69290068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920375897.4U Expired - Fee Related CN209984273U (en) | 2019-03-21 | 2019-03-21 | Fetal reduction device for multiple pregnancy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209984273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875664A (en) * | 2019-03-21 | 2019-06-14 | 西北妇女儿童医院 | Subtract device of tyre for multifetation |
-
2019
- 2019-03-21 CN CN201920375897.4U patent/CN209984273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109875664A (en) * | 2019-03-21 | 2019-06-14 | 西北妇女儿童医院 | Subtract device of tyre for multifetation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |