CN215895718U

CN215895718U - Teaching and training model for vagina ultrasound-guided puncture ovum taking

Info

Publication number: CN215895718U
Application number: CN202121645586.9U
Authority: CN
Inventors: 饶金鹏; 金帆; 王小韵; 邱枫; 蔡益婷; 金敏
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-02-22
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a teaching and training model for vagina ultrasound-guided lower puncture ovum taking, which comprises a female abdomen profiling mold, wherein the female abdomen profiling mold is internally provided with a vagina profiling mold, a cervix profiling mold, a uterus profiling mold, an oviduct profiling mold and an ovary profiling mold, and the cervix profiling mold is connected with an exposed vagina opening profiling mold; the ovary profiling die is a bag, a plurality of follicle profiling dies are arranged in the bag, the follicle profiling dies are hollow inside, barbs are arranged on the inner walls of the follicle profiling dies, first liquid used for simulating follicular fluid is arranged in the follicle profiling dies, and hook-connecting objects which can be hooked by the barbs are contained in the first liquid. The utility model effectively solves the technical problems of poor training experience and effect caused by the fact that a puncture ovum picking operation training model in the prior art cannot provide practical operation experience that ovum suction in the ovum bubble is difficult, and realizes the beneficial effects of high simulation reduction degree, vivid simulation, real experience, strong training pertinence and good training effect.

Description

Teaching and training model for vagina ultrasound-guided puncture ovum taking

Technical Field

The utility model relates to the technical field of in-vitro reproduction, in particular to a teaching and training model for vaginal ultrasound-guided puncture ovum taking.

Background

IVF-ET (in vitro fertilization and embryo transfer) mainly comprises the steps of ovulation induction, egg taking, in vitro fertilization, embryo transfer and the like, wherein the egg taking is culture by combining the ovulation induction and the in vitro fertilization, and the important key is whether mature eggs can be obtained. Since the first test-tube infant was born in 1978, ova aspiration has also undergone a progression from initial open-abdominal ova aspiration to laparoscopic ova aspiration to the currently routinely preferred transvaginal ultrasound-guided transvaginal ova aspiration.

Currently, most reproductive medicine centers are trained in the operation of penetrating and taking eggs by clinicians in the form of traditional observation and teaching operations. However, many female private parts are involved in puncture ovum picking training, and with the enhancement of privacy rights and self-protection awareness of patients in recent years, it becomes more difficult to perform actual operations and training on patients, and there are medical ethical problems and medical dispute hidden dangers.

In the process of puncture ovum picking, the position of an ovary can be not good, the ovum in the ovum bubble is difficult to suck, and the like, and an operator who only needs to be observed, studied and trained in the early stage still can prolong the time of puncture ovum picking because of insufficient practical experience or technical under-maturity, so that the discomfort of a patient is caused, and meanwhile, the risk that the oocyte follicle is exposed to external environments such as temperature, pH, osmotic pressure and the like which are easy to change is increased, so that the abnormal rate of the oocyte morphology is increased, and the final pregnancy outcome is influenced.

Training models for providing operation training are available on the market, but the existing training models only aspirate out the liquid in the follicle, namely, the ovum is taken successfully at the same time, and the practical operation experience that the ovum in the follicle is difficult to aspirate cannot be provided. The purpose of aspiration ova is to aspirate the corona-cumulus complex (ovum) from the follicle through a puncture needle into the body and perform subsequent in vitro fertilization. However, the actual puncturing and aspiration process is not smooth, some of the ova in the follicle can be firmly adhered to the follicle wall due to under-maturation, and the ovum can be aspirated from the follicle by ensuring a reasonable negative pressure threshold and an operation method. Therefore, aspiration of fluid from the follicle is not successful in obtaining the ovum.

Therefore, the above prior art has at least the following technical problems: the puncture ovum picking operation training model in the prior art cannot provide practical operation experience that ovum suction in the ovum bubble is difficult, so that the training experience and the effect are poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a puncture ovum operation teaching training model under the vaginal ultrasound guide, and solves the technical problems that the puncture ovum operation training model in the prior art can not provide the actual operation experience of ovum suction in the ovum bubble, and the training experience and the effect are poor.

In order to solve the technical problem, the embodiment of the application provides a teaching and training model for ovum taking by vaginal ultrasound-guided puncture, which comprises a female abdomen profiling mold, wherein the female abdomen profiling mold is internally provided with a vagina profiling mold, a cervix profiling mold, a uterus profiling mold, an oviduct profiling mold and an ovary profiling mold, and the cervix profiling mold is connected with an exposed vaginal orifice profiling mold;

the ovary profiling die is a bag, a plurality of follicle profiling dies are arranged in the bag, the follicle profiling dies are hollow inside, barbs are arranged on the inner walls of the follicle profiling dies, first liquid used for simulating follicular fluid is arranged in the follicle profiling dies, and hook-connecting objects which can be hooked by the barbs are contained in the first liquid.

Furthermore, the follicle profiling mold is a hollow ball, and a plurality of barbs are arranged on the inner wall of the follicle profiling mold at intervals; the stiff end of barb is fixed on the inner wall of follicle profiling mould, the free end of barb is directional in the follicle profiling mould, just the free end of barb to the inner wall bending type of follicle profiling mould forms and can collude even the barb of linking the thing.

Further, the first liquid is normal saline, and the hook is in vitro degenerated waste ovum/embryo and nebulous coronary cumulus cells.

Furthermore, the ovary profiling mold contains 1-30 follicle profiling molds, and the diameter range of the follicle profiling mold in each ovary profiling mold is 10-20 mm.

Further, the two ovary profiling dies are fixed on or around the uterus profiling die through adhesive tubes respectively.

Furthermore, a bladder profiling mold, a colon profiling mold and an abdominal aorta profiling mold are further arranged in the female abdomen profiling mold, the bladder profiling mold is arranged on the front side of the uterus profiling mold, the colon profiling mold is arranged on the rear side of the uterus profiling mold, and the abdominal aorta profiling mold is arranged in the front lower part of the uterus profiling mold.

Further, the bladder profiling mold is a latex ball filled with pure water, the colon profiling mold is a thick latex tube which is filled with pure water and is in a shape of a Chinese character 'yi', and the abdominal aorta profiling mold is a thin latex tube which is filled with pure water and is in a shape of a long strip.

Further, the abdomen profiling die is of a closed structure, a first opening which can be sealed and opened is formed in the abdomen profiling die, and second liquid is filled in the abdomen profiling die; the ovary profiling mold is provided with a second opening which can be sealed and opened, and the ovary profiling mold 1 is filled with third liquid.

Further, the second liquid is a 5% starch aqueous solution, and the third liquid is an ultrasonic couplant.

Furthermore, be equipped with the puncture site position in the abdomen profiling mould, the puncture site position is the through-hole form, just the puncture site position coats and is stamped sealing film, sealing film is polytetrafluoroethylene sealing film.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

(1) this application embodiment passes through set up the barb on the inner wall of follicle profiling mould, the barb can play and collude the effect of linking to drag the interior material of colluding of first liquid that is used for imitating follicular fluid, increased the degree of difficulty that the suction of ootheca dune complex was taken out, can provide and prick in the reality and get the ovum in-process, the difficult condition of ovum suction in the ovum bubble has improved the lifelike analog degree of model has effectively solved the puncture among the prior art and has got the ovum art training model and can't provide the difficult actual operation experience of ovum suction in the ovum bubble, leads to training experience and the relatively poor technical problem of effect, has realized that emulation degree of reduction is high, simulation, experience reality, training are with strong points, the good life-like effect of training effect.

(2) This application embodiment passes through set up the barb on the inner wall of follicle profiling mould, the barb can play and collude the effect of linking to drag the interior material of colluding of first liquid that is used for imitating follicular fluid, increased the degree of difficulty that the suction of ootheca dune complex was taken out, can provide and prick in the reality and get the ovum in-process, the difficult condition of ovum suction in the ovum bubble has improved the lifelike analog degree of model has effectively solved the puncture among the prior art and has got the ovum art training model and can't provide the difficult actual operation experience of ovum suction in the ovum bubble, leads to training experience and the relatively poor technical problem of effect, has realized that emulation degree of reduction is high, simulation, experience reality, training are with strong points, the good life-like effect of training effect.

(3) A plurality of barbs are arranged on the inner wall of the follicle profiling mold at intervals; the stiff end of barb is fixed on the inner wall of follicle profiling mould, the free end of barb is directional the centre of sphere of follicle profiling mould, just the free end of barb to the inner wall bending type of follicle profiling mould becomes and to collude even collude the barb of even thing, can play effectively colluding even collude the effect of even thing.

(4) The wall thickness of the ovary profiling die (the sac) and the wall thickness of the follicle profiling die (the hollow ball) are both set by referring to the real tissue thickness of the human body, so that the sense of reality of the puncture ovum taking training is increased.

(5) The diameter range of the follicle profiling mold is 10 mm-20 mm, the follicle profiling mold is set according to the size of a common follicle in an operation, the number range of the follicle profiling molds in the ovary profiling mold is 1-30, and the situation of the follicle after superovulation promotion, such as a natural period, micro stimulation or over stimulation, can be simulated, so that the vivid simulation degree of the model is improved.

(6) The ovary profiling model is adhered to different positions of the uterus profiling model through the adhesive tube, the situations of difficult puncture and the like are simulated, and the situation is favorable for an operator to carry out on-site strain exercise in the operation.

(7) The bladder profiling mold, the colon profiling mold and the abdominal aorta profiling mold with similar shapes and structures are simultaneously added into the model, so that the fidelity simulation degree of the model is improved, and an operator is helped to reduce the probability of serious complications in the operation.

(8) The first waterproof zipper is arranged to facilitate the teaching staff to place the profiling dies into the target position of the abdominal cavity, fill the filling medium, and prevent the medium from flowing out of the abdominal profiling die. The second waterproof zipper is arranged to facilitate the teaching staff to fill the hollow ball (follicle simulation mould) into the sac bag (ovary simulation mould).

(9) In order to more truly present the positions of the profiling molds in the model under the ultrasound, the internal profiling molds and the spaces between the internal profiling molds are filled with media such as physiological saline, pure water, an ultrasonic coupling agent or starch aqueous solution, and the real operation scene under the ultrasound guidance is better restored.

(10) This application embodiment the model has the sealing membrane with the puncture site position of polytetrafluoroethylene preparation, can carry out the repairability to the puncture site position of ovary profiling mould, follicle profiling mould and vagina profiling mould after the puncture and seal, improves the utilization efficiency of model, and convenient more training personnel carry out the puncture of relapseing a lot of with the help of the model and get the ovum art skill training, thereby make the model practicality is stronger.

In summary, the model of the embodiment of the application has the advantages of high simulation reduction degree and strong training pertinence, can simulate different intraoperative situations, can carry out comprehensive and repeated teaching and training on the puncture ovum-taking operator, is beneficial to mastering of skill of the operator and improving self-confidence, effectively reduces intraoperative time in actual clinical operation, and is beneficial to obtaining good pregnancy outcome and reducing pain of patients.

Drawings

Fig. 1 is a schematic diagram illustrating an internal structure of a teaching training model for transvaginal ultrasound-guided ovum aspiration;

fig. 2 is a schematic structural diagram of a follicle profiling model of a vaginal ultrasound-guided ovum aspiration teaching training model according to an embodiment of the present application;

fig. 3 is a schematic overall structure diagram of a teaching training model for vaginal ultrasound-guided ovum aspiration.

Detailed Description

In order to solve the technical problems, the technical scheme provided by the application has the following general idea:

through set up the barb on the inner wall of follicle profiling mold, the barb can play and collude the effect of linking to drag the interior material of colluding of first liquid that is used for imitating follicular fluid, increased the degree of difficulty that ovum guan qiu compound suction was taken out, can provide and prick in the reality and get the ovum in-process, the difficult condition that ovum suction was difficult in the ovum bubble has improved the lifelike analog degree of model has effectively solved the puncture among the prior art and has got the ovum art training model and can't provide the difficult actual operation of ovum suction in the ovum bubble and experience, leads to training experience and the relatively poor technical problem of effect, has realized that the simulation degree of reduction is high, the simulation is lifelike, experience true, training pertinence is strong, training is effectual beneficial effect.

The technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.

Fig. 1 ~ 3 are respectively the internal structure sketch map of puncture ovum technique teaching training model, the structural sketch map and the overall structure sketch map of follicle profiling mould 11 under the ultrasonic guidance of this application, as shown in fig. 1 ~ 3, the model includes a women's belly profiling mould 7, be equipped with vagina profiling mould 21, cervix profiling mould 22, uterus profiling mould 23, oviduct profiling mould 24 and ovary profiling mould 1 in the abdomen profiling mould 7, just cervix profiling mould 22 is connected with exposed vaginal orifice profiling mould 211.

Specifically, the model is an integrally formed silica gel female reproduction model, the appearance of the model is a female abdomen profiling mold 7 which is arranged according to the normal female anatomy proportion and is in a lithotomy position, and the outer surface of the abdomen profiling mold 7 is flesh color. Be equipped with women's reproduction profiling 2 in the belly profiling 7, women's reproduction profiling 2 is including the setting of simulation women's reproductive system vagina profiling 21, cervix uteri profiling 22 uterus profiling 23 oviduct profiling 24 ovary profiling 1 with vagina mouth profiling 211, just vagina mouth profiling 211 vagina profiling 21 cervix uteri profiling 22 uterus profiling 23 oviduct profiling 24 communicates in proper order.

The ovary profiling die 1 is a pouch, the pouch is oval, a plurality of follicle profiling dies 11 used for simulating follicles are arranged in the pouch, the follicle profiling dies 11 are hollow inside, barbs 111 are arranged on the inner walls of the follicle profiling dies 11, first liquid used for simulating follicular fluid is arranged in the follicle profiling dies 11, and hook-connecting objects which can be hooked by the barbs 111 are arranged in the first liquid.

Further, the follicle-simulator 11 simulates follicles formed after superovulation administration.

This application embodiment passes through set up barb 111 on follicle profiling die 11's the inner wall, barb 111 can play and collude the effect of linking to drag the interior material that colludes of first liquid that is used for imitating follicular fluid, increased the degree of difficulty that ovum hat dun compound suction was taken out, can provide and prick in the reality and get the ovum in-process, the difficult condition of ovum suction in the ovum bubble has improved the lifelike analog degree of model has effectively solved the puncture among the prior art and has got the ovum art training model and can't provide the difficult actual operation experience of ovum suction in the ovum bubble, leads to training to experience and the relatively poor technical problem of effect, has realized that emulation reduction is high, the simulation is lifelike, experience true, training pertinence is strong, trains effectual beneficial effect.

Further, the follicle simulating die 11 is a hollow ball, and a plurality of barbs 111 are arranged on the inner wall of the follicle simulating die 11 at intervals; the stiff end of barb 111 is fixed on the inner wall of follicle profiling mould 11, the free end of barb 111 is directional the centre of sphere of follicle profiling mould 11, just the free end of barb 111 to the inner wall bending type of follicle profiling mould 11 can collude even collude the barb of company's thing, can play effectively colluding even collude the effect of company's thing.

Further, the follicle profiling mold 11 is a hollow silicone ball.

Further, the first liquid is normal saline, and the linking object is in vitro degenerated waste ovum/embryo 113 and nebulous coronary cumulus cell 114.

Specifically, the remaining in-vitro cloud-shaped coronary cumulus cells after ordinary degranulation operation are collected, the degenerated waste ovum/embryo 113 is embedded therein, and then the degenerated waste ovum/embryo is mixed with physiological saline to be injected into the hollow sphere.

Further, the thickness 12 of the ovarian profiling mold is 0.2mm, and the thickness 112 of the ovarian profiling mold is 0.05 mm.

Specifically, the wall thickness 12 of the ovary profiling mold (the sac) and the wall thickness 112 of the follicle profiling mold 11 (the hollow ball) are both set by referring to the real human tissue thickness, so that the sense of reality of the puncture ovum taking training is increased.

Furthermore, the diameter range of the follicle-simulating die 11 in the ovary-simulating die 1 is 10 mm-20 mm, and the number range is 1-30.

Specifically, the diameter range of the follicle-simulating die 11 is 10 mm-20 mm according to the size of common follicles in operation, and the number range of the follicle-simulating dies 11 in the ovary-simulating die 1 is 1-30, so that the situation of follicles after superovulation promotion, such as natural period, micro stimulation or over stimulation, can be simulated.

Different female infertility patients have great difference in the number and size of ovarian follicles in ovaries before formal ovum-taking operation due to different respective ovarian reserve functions, different early clinical ovulation promotion schemes and different ovulation promotion medicine application doses. Therefore, in the model disclosed by the embodiment of the application, different ovarian situations after ovarian hyperstimulation are simulated by arranging the circular hollow balls with different sizes in the elliptical capsular bag, so that the fidelity simulation degree of the model is improved.

Further, the ovary profiling mold 1 is fixed on or around the uterus profiling mold 23 through the adhesive tube 3 respectively.

Under normal conditions, the ovaries are positioned at two sides of the uterine cavity, but because the anatomical positions of visceral organs in the uterine cavity are changed or the pelvic cavity is seriously adhered, the positions of the ovaries of some patients are not good enough. When the needle is used, the needle can not be punctured blindly, and the bladder and the uterus are avoided as much as possible by pressing the abdomen and reasonably planning the needle inserting path without passing through the endometrium. The ovary profiling model 1 (the sac) which moves is adhered to different positions of the uterus profiling model 23 (the two sides of the uterus profiling model 23 can also be adhered to other positions of the uterus profiling model 23 in front, back, left and right directions) through the adhesive tube 3, the situations such as difficult puncture are simulated, and the on-site strain exercise in the operation of an operator is facilitated.

Further, a bladder profiling mold 4, a colon profiling mold 5 and an abdominal aorta profiling mold 6 are arranged in the female abdomen profiling mold 7, the bladder profiling mold 4 is arranged on the front side of the uterus profiling mold 23, the colon profiling mold 5 is arranged on the rear side of the uterus profiling mold 23, and the abdominal aorta profiling mold 6 is arranged in the front lower part of the uterus profiling mold 23.

Specifically, the ovarian tissue is located in the abdominal cavity, there are many peripheral organs and blood vessels, and if special conditions such as anatomical position variation of organs in the abdominal cavity of a patient or severe adhesion are superimposed, there is a risk that the puncture needle damages other organs in the pelvic cavity during the process of puncture and ovum retrieval for an inexperienced operator in technical operation, for example, the bladder is punctured, the colon is punctured, the B-mode cross section of the blood vessel is mistaken as a follicle, and the puncture needle is mistaken into the blood vessel to cause heavy bleeding. Therefore, the bladder profiling mold 4, the colon profiling mold 5 and the abdominal aorta profiling mold 6 with similar shapes and structures are simultaneously added into the model of the embodiment of the application, so that the realistic simulation degree of the model is improved, and the probability of serious complications in the operation is reduced for an operator.

Further, the bladder profiling mold 4 is a latex ball filled with pure water, the colon profiling mold 5 is a thick latex tube which is B-shaped and is filled with pure water, and the abdominal aorta profiling mold 6 is a thin latex tube which is long and is filled with pure water.

Further, the abdomen profiling mold 7 is a closed structure, a first opening which can be sealed and opened is formed in the abdomen profiling mold 7, and a second liquid is filled in the abdomen profiling mold 7; the ovary profiling die 1 is provided with a second opening which can be sealed and opened, and third liquid is filled in the ovary profiling die 1.

Further, the first opening is a first waterproof zipper 71, and the second opening is a second waterproof zipper 14. The first waterproof zipper 71 is arranged to facilitate the teaching staff to place each profiling die in the target position of the abdominal cavity, and to add the filling medium and prevent the medium from flowing out of the abdominal profiling die 7. The second waterproof zipper 14 is arranged to facilitate the teaching staff to plug the hollow ball (the follicle simulation mould 11) into the sac bag (the ovary simulation mould 1).

Further, the second liquid is a 5% aqueous starch solution; the third liquid is an ultrasonic couplant 13, and the ultrasonic couplant 13 can be developed under B ultrasonic so as to prevent the mixing of the internal medium and the external medium of the capsular bag (the ovary profiling mold 1).

In particular, most of the puncture ovum taking operations are performed under the guidance of vaginal ultrasound at present. Therefore, in order to more truly present the positions of the profiling molds in the model under the ultrasound, the internal profiling molds and the spaces between the profiling molds are filled with media such as physiological saline, pure water, an ultrasonic coupling agent or a starch aqueous solution, and the real operation scene under the ultrasound guidance is better restored.

Further, a puncture point is arranged in the abdomen profiling mold 7, the puncture point is in a through hole shape, a sealing film 115 is covered on the outer end face of the puncture point, and the sealing film is a polytetrafluoroethylene sealing film.

Specifically, the ovarian profiling die 1, the follicle profiling die 11 and the vaginal profiling die 21 are all provided with the puncture sites. The utility model provides an embodiment the model has the sealing membrane 115 with the puncture site position of polytetrafluoroethylene preparation, can carry out the repairability to the puncture site position of ovary profiling mould, follicle profiling mould 11 and vagina profiling mould 21 after the puncture and seal, improves the utilization efficiency of model, makes things convenient for more training personnel to get the ovum art skill training with the help of the model is repeated many times's puncture, thereby makes the model practicality is stronger.

The application method of the model in the embodiment of the application is as follows:

model preparation before training:

s110: embedding the collected in-vitro degenerated waste ovum/embryo 113 into the center of the cloud-shaped coronary cumulus cell 114, and injecting mixed physiological saline into the follicle profiling mold 11;

s120: the second waterproof zipper 14 on the surface of the ovary profiling mold 1 is unzipped, the ovary profiling mold 11 with a certain quantity and size is plugged according to the training requirement, the ultrasonic couplant 13 with sufficient quantity is refilled, and the second waterproof zipper 14 is zipped;

s130: the first waterproof zipper 71 on the abdomen profiling die 7 is unzipped, the ovary profiling die 1 is connected to the corresponding position of the uterus profiling die 23 through the adhesive tube 3, the position can be two sides of the uterus profiling die 23, and the ovary profiling die can also be adhered to other positions of the uterus profiling die 23 in front, back, left and right, so as to construct a training model which is difficult to puncture and take eggs;

s140: the bladder profiling mold 4, the colon profiling mold 5 and the abdominal aorta profiling mold 6 are placed in the corresponding positions of the periphery of the uterus profiling mold 23 in the abdomen profiling mold 7 for fixing and bonding, then 5% of starch water solution is filled into the abdomen profiling mold 7, and finally the first waterproof zipper 71 is pulled up to finish the preparation work of the model.

(II) training of puncture ovum taking operation under vaginal ultrasound guidance:

s210: selecting a vaginal ultrasonic probe with proper frequency (6.5MHz), scrubbing the probe and accessories thereof by using 75% alcohol, repeatedly washing the probe by using normal saline, wrapping 2-3 condoms at the head end of the probe, wrapping a disposable long-strip sterile plastic bag by using a probe connecting wire, and bundling;

s220: cleaning the vaginal orifice profiling die 211, the vaginal profiling die 21 and the cervical profiling die 22 on the abdominal profiling die 7 by using normal saline, after finishing conventional drape laying, placing vaginal ultrasound into the posterior fornix position of the vaginal profiling die 21, starting an ultrasonic device, observing the position of the ovarian profiling die 1, judging the number and the size of the ovarian follicle profiling die 11, paying attention to the corresponding positions of the surrounding uterine profiling die 23, the oviduct profiling die 24, the bladder profiling die 4, the colon profiling die 5 and the abdominal aorta profiling die 6, and determining a straight path for puncturing and sucking the ovarian follicle profiling die 11 in the ovarian profiling die 1.

S230: carefully taking out the puncture ovum-taking needle from the package, and performing aseptic operation; inspecting the sharpness of the sharp end of the sterile needle and whether the tube is twisted or not, connecting a vacuum tube of the needle with a vacuum pump, plugging a silica gel plug of the needle group on a collecting tube (15ml BD round bottom tube), putting the needle point into a test tube filled with an egg flushing liquid, and starting the vacuum pump to detect the smoothness of a suction system; inserting a suction needle into the needle guide frame, ensuring that the tip end of the needle tip does not exceed the end part of the vaginal probe (avoiding scratching the inner wall of the vagina), placing the vaginal probe into the back fornix position of the vaginal profiling mold 21 again, observing an ultrasonic display screen, puncturing the back fornix wall of the vaginal profiling mold 21 at an agile speed, adjusting the negative pressure value of a vacuum pump to a reasonable threshold value (120mmHg, 1mmHg is 0.133KPa), rapidly pushing the needle tip into the central position of the follicle profiling mold 11 in the ovarian profiling mold 1, and sequentially puncturing and sucking the follicle profiling mold 11 with the diameter of more than 12mm from near to far along a planned puncture linear path. The needle is rotated repeatedly during aspiration to ensure that the pressure is close throughout the follicle profiling mold wall 112. Negative pressure is applied before the follicle-imitating mould 11, namely, negative pressure puncture is carried out, otherwise, when the tension of the follicle-imitating mould 11 is larger, the puncture needle enters once, and the discarded degenerated ovum/embryo 133 possibly runs off from the needle eye; the fluid in the follicle 11 is evacuated during ova aspiration to avoid the discarded degenerated ova/embryo 133 from remaining in the follicle 11;

s240: when the embryo laboratory reports that the cloud-like coronary cumulus cells 114 with the waste degenerated ova/embryos 113 are observed under a microscope, puncturing and sucking the next follicle profiling mold 11 are continued; for poor position of the ovary profiling mold 1 or over-high activity of the ovary profiling mold 1, pressing down the abdomen profiling mold 7 by an assistant to correct or limit the position and the activity of the ovary profiling mold 1; generally, the other follicle profiling dies 11 of the ovary profiling die 1 on the same side can be punctured without withdrawing the puncture needle from the vaginal wall 21, the puncture of the ovary profiling die 1 on the other side needs to be performed for the second time, the bladder 4, the colon 5 and the abdominal aorta 6 need to be avoided during the puncture, and the puncture does not penetrate through the bladder profiling die 4, the uterus profiling die 23 and the oviduct profiling die 24 as much as possible;

s250: after all puncture and aspiration procedures are completed, the puncture needle on the ultrasonic frame is removed, the puncture needle is washed by flushing fluid, and the puncture needle is placed back into the needle sleeve and the packaging bag after being washed and disinfected for next practice (note that the puncture needle is discarded into a sharps box in time after the actual puncture ovum taking operation).

(III) model maintenance after training:

after the model is used, the first waterproof zipper 7 is opened, the starch water solution in the model is emptied, and each profiling mold in the model is taken out to carry out necessary surface scrubbing and disinfection treatment; particularly, the ovary profiling mold 1 is taken out, the second waterproof zipper 14 on the surface of the ovary profiling mold 1 is pulled open, the ultrasonic couplant 13 in the ovary profiling mold 1 is emptied, the necessary surface scrubbing and disinfection treatment is carried out on the ovary profiling mold 1 and the follicle profiling mold 11, puncture needle holes on the surfaces of the ovary profiling mold 1 and the follicle profiling mold 11 are inspected, and the sealing film 115 is used for necessary repair so as to be used continuously next time, so that the utilization efficiency of the model is improved.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

(1) this application embodiment passes through set up barb 111 on follicle profiling die 11's the inner wall, barb 111 can play and collude the effect of linking to drag the interior material that colludes of first liquid that is used for imitating follicular fluid, increased the degree of difficulty that ovum hat dun compound suction was taken out, can provide and prick in the reality and get the ovum in-process, the difficult condition of ovum suction in the ovum bubble has improved the lifelike analog degree of model has effectively solved the puncture among the prior art and has got the ovum art training model and can't provide the difficult actual operation experience of ovum suction in the ovum bubble, leads to training to experience and the relatively poor technical problem of effect, has realized that emulation reduction is high, the simulation is lifelike, experience true, training pertinence is strong, trains effectual beneficial effect.

(2) This application embodiment passes through set up barb 111 on follicle profiling die 11's the inner wall, barb 111 can play and collude the effect of linking to drag the interior material that colludes of first liquid that is used for imitating follicular fluid, increased the degree of difficulty that ovum hat dun compound suction was taken out, can provide and prick in the reality and get the ovum in-process, the difficult condition of ovum suction in the ovum bubble has improved the lifelike analog degree of model has effectively solved the puncture among the prior art and has got the ovum art training model and can't provide the difficult actual operation experience of ovum suction in the ovum bubble, leads to training to experience and the relatively poor technical problem of effect, has realized that emulation reduction is high, the simulation is lifelike, experience true, training pertinence is strong, trains effectual beneficial effect.

(3) A plurality of barbs 111 are arranged on the inner wall of the follicle profiling die 11 at intervals; the stiff end of barb 111 is fixed on the inner wall of follicle profiling mould 11, the free end of barb 111 is directional the centre of sphere of follicle profiling mould 11, just the free end of barb 111 to the inner wall bending type of follicle profiling mould 11 can collude even collude the barb of company's thing, can play effectively colluding even collude the effect of company's thing.

(4) The wall thickness 12 of the ovary profiling die (the sac) and the wall thickness 112 of the follicle profiling die 11 (the hollow ball) are both set according to the real tissue thickness of the human body, so that the sense of reality of the puncture ovum taking training is increased.

(5) The diameter range of the follicle-simulating die 11 is 10 mm-20 mm according to the size of common follicles in operation, the number range of the follicle-simulating dies 11 in the ovary-simulating die 1 is 1-30, and then the situation of follicles after superovulation promotion, such as natural period, micro stimulation or over stimulation, can be simulated, so that the fidelity simulation degree of the model is improved.

(6) The ovary profiling mould 1 is adhered to different positions of the uterus profiling mould 23 through the adhesive tube 3, the situation of difficult puncture and the like is simulated, and the situation is favorable for an operator to carry out on-site strain exercise in the operation.

(7) The bladder profiling mold 4, the colon profiling mold 5 and the abdominal aorta profiling mold 6 with similar shapes and structures are simultaneously added into the model, so that the fidelity simulation degree of the model is improved, and an operator is helped to reduce the probability of serious complications in the operation.

(8) The first waterproof zipper 71 is arranged to facilitate the teaching staff to place each profiling die in the target position of the abdominal cavity, and to add the filling medium and prevent the medium from flowing out of the abdominal profiling die 7. The second waterproof zipper 14 is arranged to facilitate the teaching staff to plug the hollow ball (the follicle simulation mould 11) into the sac bag (the ovary simulation mould 1).

(10) The utility model provides an embodiment the model has the sealing membrane 115 with the puncture site position of polytetrafluoroethylene preparation, can carry out the repairability to the puncture site position of ovary profiling mould, follicle profiling mould 11 and vagina profiling mould 21 after the puncture and seal, improves the utilization efficiency of model, makes things convenient for more training personnel to get the ovum art skill training with the help of the model is repeated many times's puncture, thereby makes the model practicality is stronger.

It should be understood that the terms of orientation of up, down, left, right, front, back, top, bottom, etc., referred to or may be referred to in this specification, are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed accordingly depending on the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

While the foregoing is directed to the preferred embodiment of the present application, and not to the limiting thereof in any way and any way, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. Those skilled in the art can make various changes, modifications and equivalent arrangements to those skilled in the art without departing from the spirit and scope of the present application; moreover, any equivalent alterations, modifications and variations of the above-described embodiments according to the spirit and techniques of this application are intended to be within the scope of the claims of this application.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be termed a second element, and, similarly, a second element may be termed a first element, without departing from the scope of example embodiments.

The terms of orientation, outer, intermediate, inner, etc., as referred to or as may be referred to in the specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed according to the position and the use state of the structure. Therefore, these and other directional terms should not be construed as limiting terms.

Claims

1. A teaching and training model for ovum taking by vaginal ultrasound-guided puncture is characterized by comprising a female abdomen profiling mold, wherein the female abdomen profiling mold is internally provided with a vagina profiling mold, a cervix profiling mold, a uterus profiling mold, an oviduct profiling mold and an ovary profiling mold, and the cervix profiling mold is connected with an exposed vaginal orifice profiling mold;

2. The training model for teaching ovum aspiration through vaginal ultrasound-guided puncture and aspiration as claimed in claim 1, wherein the follicle-simulating mold is a hollow sphere, and a plurality of barbs are arranged on the inner wall of the follicle-simulating mold at intervals; the stiff end of barb is fixed on the inner wall of follicle profiling mould, the free end of barb is directional in the follicle profiling mould, just the free end of barb to the inner wall bending type of follicle profiling mould forms and can collude even the barb of linking the thing.

3. The vaginal ultrasound-guided puncture ovum retrieval teaching and training model as claimed in claim 1, wherein the first liquid is normal saline, and the hooking objects are in vitro degenerated waste ovum/embryo and nebulous coronary cumulus cells.

4. The training model for teaching ovum aspiration through vaginal ultrasound-guided puncture and aspiration as claimed in claim 1, wherein the ovary profiling mold contains 1-30 follicle profiling molds, and the diameter of the follicle profiling mold in each ovary profiling mold ranges from 10mm to 20 mm.

5. The vaginal ultrasonic guided puncture ovum pickup teaching and training model as claimed in claim 1, wherein two of the ovary profiling molds are respectively fixed on or around the uterus profiling mold through an adhesive tube.

6. The vaginal ultrasonic guided puncture ovum pickup teaching and training model as claimed in claim 1, wherein a bladder profiling mold, a colon profiling mold and an abdominal aorta profiling mold are further arranged in the female abdominal profiling mold, the bladder profiling mold is arranged at the front side of the uterus profiling mold, the colon profiling mold is arranged at the rear side of the uterus profiling mold, and the abdominal aorta profiling mold is arranged at the front lower part of the uterus profiling mold.

7. The vaginal ultrasonic guided puncture ovum pickup teaching and training model as claimed in claim 6, wherein the bladder phantom is a latex ball filled with pure water, the colon phantom is a thick latex tube in the shape of "B" filled with pure water, and the abdominal aorta phantom is a long latex tube filled with pure water.

8. The vaginal ultrasonic guided puncture ovum pickup teaching and training model as claimed in claim 1, wherein the abdomen copy mold is a closed structure, a first opening which can be sealed and opened is arranged on the abdomen copy mold, and a second liquid is filled in the abdomen copy mold; the ovary profiling mold is provided with a second opening which can be sealed and opened, and the ovary profiling mold 1 is filled with third liquid.

9. The vaginal ultrasound-guided transfixion ovariectomy teaching training model of claim 8, wherein said second liquid is a 5% starch aqueous solution and said third liquid is an ultrasound couplant.

10. The teaching and training model for ovum taking by puncture under vaginal ultrasound guidance as claimed in claim 1, wherein the abdomen dummy is provided with a puncture site, the puncture site is in a shape of a through hole, and the puncture site is covered with a sealing film, the sealing film is a polytetrafluoroethylene sealing film.