CN111899621A - Animal heart simulated uterus containing stitching instrument and preparation method thereof - Google Patents
Animal heart simulated uterus containing stitching instrument and preparation method thereof Download PDFInfo
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- CN111899621A CN111899621A CN202010852869.4A CN202010852869A CN111899621A CN 111899621 A CN111899621 A CN 111899621A CN 202010852869 A CN202010852869 A CN 202010852869A CN 111899621 A CN111899621 A CN 111899621A
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- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/30—Anatomical models
- G09B23/306—Anatomical models comprising real biological tissue
Abstract
The invention relates to an animal heart simulated uterus containing a stitching device, which comprises the stitching device and a uterus initial mold, wherein the stitching device comprises an upper mold and a lower mold, the uterus initial mold is made of animal hearts, the uterus initial mold is a cavity structure with an opening at the lower end, the outer wall of the uterus initial mold is attached to the inner wall of the stitching device, one end of the uterus initial mold is provided with a uterus opening, the part of the uterus initial mold attached to the upper opening is a uterus corner, the uterus initial mold between the two uterus corners is a uterus bottom, and the uterus initial molds from the uterus opening to the uterus corners are a cervix and a uterus body in sequence. A method for preparing a simulated uterus, comprising at least: selecting biological tissue material, pretreating, placing into a pressing device, cutting off excessive animal heart muscle except the pressing device, and closing the upper die and the lower die. The animal heart simulated uterus is prepared, an anatomical model of the simulated uterus is constructed, and meanwhile, the simulated uterus can bear a certain uterus expansion pressure during hysteroscopy operation, so that the normal operation of the simulated hysteroscopy operation is ensured.
Description
Technical Field
The invention relates to the technical field of medical models, in particular to an animal heart simulated uterus containing a stitching device and a preparation method thereof.
Background
With the improvement of life rhythm and living standard, the variety of diseases of people is more and more, especially the gynecological diseases of women, such as abnormal uterine bleeding, menorrhagia or hypomenorrhea, uterine polyp, uterine fibroid and the like. The traditional diagnostic methods for these gynecological diseases are: the diagnosis methods of cases after B-ultrasonic examination, diagnostic curettage or hysterectomy have disadvantages and high missed diagnosis rate. With the development of hysteroscope technology, the detectable rate of gynecological diseases is obviously improved, and the treatment effect of some gynecological diseases is also obviously improved. At present, the hysteroscope technology can be used for directly inspecting pathological changes in the uterine cavity, positioning and collecting pathological change tissues for inspection, endometrium, submucosal myoma, endometrial polyp and the like can be removed, the hysteroscope operation does not need to open the abdomen, the postoperative recovery time is obviously shortened, and meanwhile, the uterus does not have a cut, so the cesarean section probability in the future is greatly reduced.
At present, in clinical teaching and practical exercises, because the patient cannot do exercises, simulation exercises are needed to be performed on the model. However, most of the existing uterus models are made of non-biological materials, so that a real clinical experience feeling cannot be provided for students, and the chances of practice cannot be provided for the students, so that the students need to accumulate experiences only by observing the operation of a teacher in a long-term clinical practice, the learning cycle of the students is prolonged, and the teaching effect is poor.
Disclosure of Invention
The invention provides an animal heart simulated uterus containing a stitching instrument and a preparation method thereof, and aims to solve the technical problems that the existing uterus model is poor in teaching effect and cannot simulate the sense of reality of clinical operation.
The specific scheme of the invention is as follows: an animal heart simulated uterus containing a compression device comprises the compression device and a primary uterus mold positioned in the compression device.
Preferably, the pressfitting ware is provided with the die cavity that is used for holding the uterus primary mould including the last mould and the lower mould that the symmetry set up in going up the mould, goes up the one end of mould and has seted up the under shed, goes up the both sides of the mould other end and has all seted up the upper shed.
Preferably, the uterus initial mold is made of animal hearts, the uterus initial mold is a cavity structure with an opening at the lower end, the outer wall of the uterus initial mold is attached to the inner wall of the stitching device, a uterus opening is formed in one end of the uterus initial mold, the part of the uterus initial mold attached to the upper opening is a uterus corner, the uterus initial mold between the two uterus corners is a uterus bottom, and the uterus initial mold from the uterus opening to the uterus corner is sequentially a cervix and a uterus body from bottom to top.
Preferably, the simulated uterus further comprises a simulated uterine polyp comprising animal heart muscle fragments, one end of which passes through the outer wall of the primary uterine model and extends into the inner cavity of the primary uterine model.
Preferably, a catheter penetrates through the animal heart muscle fragments, the end part of the catheter positioned in the animal heart muscle fragments is flush with the inner wall of the primary uterus mould, the other end of the catheter extends to the outside of the stitching device and is connected with an infusion device, and the end part of the infusion device is communicated with a blood bag for containing simulated blood.
Preferably, the catheter is selected from a silica gel catheter or a pediatric scalp intravenous needle catheter, and the inner diameter of the silica gel catheter is 1.0-1.5 mm.
Preferably, the animal heart is selected from any one of pig heart, cow heart or sheep heart.
A method for preparing an animal heart simulated uterus containing a stitching device at least comprises the following steps:
s1, selecting fresh animal hearts as raw materials;
s2, pretreating the animal heart selected in the step S1 to obtain a primary uterus model;
s3, placing the primary uterus mould obtained in the step S2 into a mould cavity of a lower mould of a stitching device, and adjusting the position of the primary uterus mould in the mould cavity to enable each part of the outer wall of the primary uterus mould to be tightly attached to the inner wall of the mould cavity;
s4, cutting off animal heart muscle of the uterine cavity primary mold outside the stitching device in the step S3, and reserving the cut animal heart muscle fragments for standby;
and S5, matching the upper die and the lower die of the stitching device, and then pressing and fixing the upper die and the lower die by using a fixing band, thereby preparing the animal heart simulated uterus containing the stitching device.
Preferably, the pretreatment of the animal heart comprises the steps of:
s21, communication: cutting off chordae tendineae of the animal heart and intervals inside the animal heart by using a pair of surgical scissors to enable all cavities of the animal heart to be communicated;
s22, thinning: using a surgical scissors to cut off the myocardial tissue from the inner side wall of the animal heart outwards to reduce the thickness of the myocardial tissue of the animal heart and reserve the outer surface of the animal heart and the myocardial tissue 1.0-1.5cm below the outer surface of the animal heart;
s23, overturning: and (3) turning the inner side wall of the thinned animal heart outwards from the opening at the top end of the animal heart, so that the outer wall of the animal heart is turned into the inner side, thereby preparing the primary uterus model.
Preferably, step S3 is specifically: the tip of the primary uterus mould is clamped into the uterine horn mould cavity at one side of the stitching device, and the position of the primary uterus mould in the mould cavity is manually adjusted, so that the primary uterus mould is tightly jointed with all parts of the inner wall of the mould cavity.
Preferably, the method further comprises preparation of a simulated uterine polyp, specifically the preparation method comprises: selecting one animal heart muscle fragment obtained in the step S4, inserting one end of a catheter with the inner diameter of 1.0-1.5mm into the middle of the selected animal heart muscle fragment, wherein the other end of the catheter is communicated with an infusion apparatus, the other end of the infusion apparatus is communicated with a blood bag, and simulated blood is contained in the blood bag; after step S4, the prepared simulated uterine polyp is inserted into the primary uterine model through the edge of the stitching device, the end of the simulated uterine polyp passes through the stitching device and extends into the inner cavity of the primary uterine model, and the end of the catheter in the simulated uterine polyp is flush with the inner wall of the primary uterine model.
Compared with the prior art, the invention has the following advantages: the simulated uterus comprises the stitching device and the primary uterus model made of animal hearts, the simulated uterus has the appearance of the uterus, and meanwhile, the simulated uterus has the uterus structures such as a uterine orifice, a uterine neck, a uterine body, a uterine horn, an opening of an oviduct, a uterine fundus and the like, the anatomical structure of the simulated uterus is constructed, so that students can conveniently observe and simulate through a hysteroscope, and meanwhile, the primary uterus model made of the animal hearts can provide the students with real uterus touch and experience, improve the clinical feeling of the students and accelerate the skill mastering speed of the students; in addition, the stitching device plays a certain protective role in the primary uterus model, so that the simulated uterus can bear certain uterus expansion pressure during hysteroscopic operation, the primary uterus model is prevented from being spread when a uterus expansion pump is used, and smooth proceeding of the simulated hysteroscopic operation is ensured. Through set up simulation uterine polyp and simulation blood vessel in the simulation uterus, be convenient for the student carry out the analog operation of endometrium polyp excision in this simulation uterus, because the setting of simulation blood vessel, whether be convenient for flow out simulation blood through the simulation blood vessel and judge whether suitable the degree of depth of simulation uterine polyp excision, also improved student's true experience simultaneously and felt, be convenient for it master relevant operation fast.
Drawings
FIG. 1 is a schematic structural view of an upper mold and a lower mold of the present invention;
FIG. 2 is a cross-sectional view showing the connection relationship between the lower mold and the primary uterus mold according to the present invention;
fig. 3 is a schematic view of the connection relationship between a simulated uterine polyp and a primary uterine model according to the present invention.
Detailed Description
The contents of the present invention can be more easily understood by referring to the following detailed description of preferred embodiments of the present invention and examples included therein, and unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, and in the case of contradiction, the definitions in the present specification shall control. The term "prepared from … …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "meaning," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of … …" excludes any unspecified elements, steps or components. If used in a claim, this phrase is intended to claim as closed, meaning that it does not include materials other than those described, except in connection with the common journal of usage. When the phrase "consisting of … …" appears in a clause of the claimed subject matter rather than immediately following the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of values, with an upper limit preferred value and a lower limit preferred value, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
In a first aspect of the invention, there is provided a simulated uterus of an animal heart comprising a compression device, as shown in figures 1 and 2, comprising a compression device 1 and a primary uterus mould 2 arranged in the compression device 1. Wherein, pressfitting ware 1 has the womb appearance and including last mould 3 and the lower mould 4 that the symmetry set up, upward is provided with the die cavity 5 that is used for holding the womb and just moulds 2 in the mould 3, goes up the one end of mould 3 and has seted up under shed 6, and the upper shed 7 has all been seted up to the both sides of going up the mould 3 other end, goes up mould 3 the same with the structure of lower mould 4, goes up mould 3 and 4 detachable cooperation of lower mould, does to articulate mutually through the connecting piece. After the upper die 3 and the lower die 4 are buckled, a uterine opening die cavity 8 is formed at the lower opening 6 of the upper die 3 and the lower die 4, a uterine horn die cavity 9 is formed at the upper opening 7 of the upper die 3 and the lower die 4, a uterine bottom die cavity 10 is formed at the pressfitting device 1 between the two upper openings 7, and a cervical die cavity 11 and a uterine body die cavity 12 are sequentially formed on the side wall of the pressfitting device 1 between the lower opening 6 and the upper opening 7 from bottom to top.
The primary uterus model 2 is made of animal hearts, preferably pig hearts, sheep hearts and cow hearts. The primary uterus model 2 is a cavity structure with an opening at the lower end, and the cavity of the primary uterus model 2 forms a uterine cavity 22 simulating the uterus. Because the outer wall of uterus primary mold 2 laminates with the inner wall of pressfitting ware 1 mutually, consequently, the appearance of uterus primary mold 2 is unanimous with pressfitting ware 1 mutually, and then makes the appearance of uterus primary mold 2 unanimous with the uterus for the student observes the appearance of uterus through this simulation uterus. Meanwhile, one end of the uterus primary mold 2 is provided with a uterus mouth 13, the uterus mouth 13 is positioned at a uterus mouth mold cavity 8 of the stitching device, the part of the uterus primary mold 2, which is jointed with the upper opening 7, is a uterus corner 14, the uterus primary mold 2 between the two uterus corners 14 is a uterus bottom 15, and the uterus primary mold 2 between the uterus mouth 13 and the uterus corner 14 is sequentially provided with a cervix 16 and a uterus body 17 from bottom to top. Through the arrangement, the simulated uterus has the appearance similar to that of a real uterus, and simultaneously has the structures of a uterine cavity 22, a uterine horn 14, a uterine fundus 15, a uterine body 17, a uterine neck 16 and a uterine orifice 13, so that the structure of the real uterus is completely simulated, the anatomical structure of the simulated uterus is constructed, and the real clinical experience feeling is provided for students in the teaching process. In addition, when the hysteroscope is used for simulating the simulated uterus, the simulated uterus needs to be pressed through the uterus expansion pump, the uterus expansion pressure is generally set to be 60-80mmHg, the existence of the stitching device 1 enables the simulated uterus to bear the pressure, the primary uterus model 2 is prevented from being broken, the primary uterus model 2 is protected to a certain extent, so that students can truly simulate the operation of the uterus expansion pump in clinical operation, and the normal operation of the simulation operation is also ensured.
In order to facilitate the student to carry out the simulation operation of uterus polyp excision in the teaching process, improve its ability of handling, this simulation uterus still includes simulation uterus polyp 18, and simulation uterus polyp 18 includes animal heart muscle piece 19, and animal heart muscle piece 19's one end passes the outer wall of uterus primary model 2 and extends to in the inner chamber of uterus primary model 2. In the teaching and training process, the student can excise the uterine polyp 18 when observing it to make the student simulate the operation process that uterine polyp 18 amputated, strengthen its clinical experience sense, improve its ability of practising exercises.
Further, in order to facilitate students to know whether the depth of the resected simulated uterine polyp 18 is proper or not, a catheter 20 is arranged in the animal heart muscle fragment 19 in a penetrating mode, the inner diameter of the catheter 20 is small, the end portion of the catheter 20 located in the animal heart muscle fragment is flush with the inner wall of the primary uterine model 2, the other end of the catheter 20 extends to the outside of the stitching device 1 and is connected with an infusion device 21, the end portion of the infusion device 21 is communicated with a blood bag (not shown in the figure), and simulated blood is contained in the blood bag. When the simulated uterine polyp 18 resected by the student is too deep, the simulated blood will flow out of the end of the catheter 20 into the lumen of the primary uterine mould 2 and can be viewed according to the display of the hysteroscope. The location and number of simulated uterine polyps 18 is not particularly limited herein and can be selected accordingly as instructional needs. Wherein the inner diameter of the catheter 20 is 1.0-1.5mm, preferably, the catheter 20 is a silica gel catheter or a pediatric scalp intravenous needle catheter.
The using method comprises the following steps: in the teaching and training, a student firstly sets the pressure of the uterine expansion pump, the pressure value is 60-80mmHg, and confirms that bubbles in the uterine expansion pipeline are emptied, then the hysteroscope is held by hand to enter the uterine cavity 22 from the uterine orifice 13 of the simulated uterus, and the fundus 15, the uterine horns 14 at two sides, the mouth of the uterine tube at two sides, the front and rear walls, the two side walls, the isthmus and the cervical canal of the simulated uterus are sequentially explored, if the simulated uterine polyp 18 is explored in the exploring process, the simulated uterine polyp 18 is excised, whether the excision is complete and the excision depth is proper is observed according to the display of the hysteroscope, and if the excision depth is not proper, the simulated blood flows out; after the excision and exploration are finished, whether active bleeding exists or not is checked, the hysteroscope is slowly withdrawn, and the simulation process is finished.
In a second aspect, the present invention provides a method for preparing the above-mentioned animal heart simulated uterus containing the compression device 1, which at least comprises the following steps:
s1, selecting fresh animal hearts as raw materials, wherein the animal hearts with the size similar to that of the human uterus can be used for preparing simulated uterus, and preferably any one of pig hearts, cow hearts and sheep hearts;
s2, pretreating the animal heart selected in the step S1 to obtain a primary uterus model 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the mould cavity 5 of the lower mould 4 of the stitching device 1, and adjusting the position of the primary uterus mould 2 in the mould cavity 5 to enable all parts of the outer wall of the primary uterus mould 2 to be tightly attached to the inner wall of the mould cavity 5;
s4, cutting off animal heart muscle of the uterine cavity primary model 2 outside the stitching device 1 in the step S3, and taking the animal heart muscle fragments 19 obtained by cutting off for later use;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are closed, and then the upper mold 3 and the lower mold 4 are pressed and fixed by using a fixing band, so as to obtain the animal heart simulated uterus containing the compression device 1, wherein the fixing band is preferably a bandage or bandage.
The pretreatment of animal hearts comprises the following steps:
s21, communication: cutting off chordae tendineae of the animal heart and intervals inside the animal heart by using a pair of surgical scissors to enable all cavities of the animal heart to be communicated;
s22, thinning: using a surgical scissors to cut off the myocardial tissue from the inner side wall of the animal heart outwards to reduce the thickness of the myocardial tissue of the animal heart and reserve the outer surface of the animal heart and the myocardial tissue 1.0-1.5cm below the outer surface of the animal heart;
s23, overturning: and (3) turning the inner side wall of the thinned animal heart outwards from the opening at the top end of the animal heart, so that the outer wall of the animal heart is turned into the inner side, thereby preparing the primary uterus model 2.
Step S3 specifically includes: the tip part of the primary uterus mould 2, namely the apex of the heart of the animal, is clamped into the uterine horn mould cavity at one side of the stitching device 1, and the position of the primary uterus mould 2 in the mould cavity 5 is manually adjusted, so that the primary uterus mould 2 is tightly attached to each part of the inner wall of the mould cavity 5.
The simulated uterus is prepared through the steps and comprises the stitching device 1 and the uterus primary die 2, the appearance of the uterus is ensured to be possessed by the simulated uterus due to the stitching device 1, and the simulated uterus has the structures of a uterus horn 14, a cervix 16, a uterus cavity 22, a uterus fundus 15, a uterus body 17 and a uterus mouth 13, an anatomical model of the simulated uterus is constructed, in addition, the stitching device 1 enables the simulated uterus to bear certain uterus expanding pressure without collapsing, and the normal operation of the simulation operation is ensured.
Further, the method also comprises the preparation of the simulated uterine polyp 18, and the specific preparation method comprises the following steps: selecting one animal heart muscle fragment 19 cut off in the step S4, inserting one end of a catheter 20 into the middle of the selected animal heart muscle fragment 19, communicating the other end of the catheter 20 with an infusion set 21, communicating the other end of the infusion set 21 with a blood bag, and containing simulated blood. The inner diameter of the catheter 20 is 1.0-1.5mm, and the catheter 20 is selected from a silica gel catheter or a pediatric scalp intravenous needle catheter.
Since the animal heart is thinned in step S22, and the wall thickness of the primary uterus mold 2 is only 1.0-1.5cm, after the primary uterus mold 2 outside the compression device 1 is cut in step S4, the primary uterus mold 2 forms an opening at the edge of the compression device 1, the prepared simulated uterine polyp 18 is inserted into the primary uterus mold 2 through the opening, the end of the simulated blood flesh, i.e. the end without the catheter 20, penetrates through the compression device 1 and extends into the inner cavity of the primary uterus mold 2, and the end of the small catheter 20 in the simulated uterine polyp 18 is flush with the inner wall of the primary uterus mold 2.
Example 1
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.0cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5.
S4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are closed, and then the upper mold 3 and the lower mold 4 are pressed and fixed by a binding tape, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 2
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.5cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5.
S4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use; selecting one from the pig heart muscle fragments cut off in the step S4, and inserting the selected pig heart muscle fragment into the uterus primary mold through the edge of the stitching device;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are closed, and then the upper mold 3 and the lower mold 4 are pressed and fixed by a binding tape, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 3
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.2cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5;
s4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use; selecting one from the pig heart muscle fragments cut off in the step S4, inserting one end of a catheter into the middle of the selected pig heart muscle fragments, wherein the inner diameter of the catheter is 1.0mm, the other end of the catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is filled in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the catheter positioned in the simulated uterine polyp is level with the inner wall of the uterine primary mold;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are combined, and then the upper mold 3 and the lower mold 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 4
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.3cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5.
S4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use; selecting one from the pig heart muscle fragments cut off in the step S4, inserting one end of a catheter into the middle of the selected pig heart muscle fragments, wherein the inner diameter of the catheter is 1.5mm, the other end of the catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is filled in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the catheter positioned in the simulated uterine polyp is level with the inner wall of the uterine primary mold;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are combined, and then the upper mold 3 and the lower mold 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 5
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.5cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5.
S4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use; selecting one from the pig heart muscle fragments cut off in the step S4, inserting one end of a catheter into the middle of the selected pig heart muscle fragments, wherein the inner diameter of the catheter is 1.2mm, the other end of the catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is filled in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the catheter positioned in the simulated uterine polyp is level with the inner wall of the uterine primary mold;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are combined, and then the upper mold 3 and the lower mold 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 6
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.3cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5.
S4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use; selecting one of the pig heart muscle fragments cut out in the step S4, inserting one end of a silica gel catheter into the middle of the selected pig heart muscle fragment, wherein the inner diameter of the silica gel catheter is 1.5mm, the other end of the silica gel catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is contained in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the silica gel catheter positioned in the simulated uterine polyp is flush with the inner wall of the uterine primary mold;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are combined, and then the upper mold 3 and the lower mold 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 7
S1, selecting fresh pig hearts as raw materials;
s2, preprocessing the pig heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the pig heart and the interval inside the pig heart by using a pair of surgical scissors to communicate the cavities of the pig heart;
s22, thinning: using surgical scissors to cut off the myocardial tissue from the inner side wall of the pig heart outwards to reduce the thickness of the myocardial tissue of the pig heart and keep the myocardial tissue of the outer surface of the pig heart and 1.5cm below the outer surface of the pig heart;
s23, overturning: turning the inner side wall of the thinned pig heart outwards from the opening at the top end of the pig heart to turn the outer wall of the pig heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the pig heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5.
S4, cutting the pig heart muscle of the uterine cavity primary die 2 outside the stitching device 1 in the step S3, and taking the cut pig heart muscle fragments for later use; selecting one of the pig heart muscle fragments cut out in the step S4, inserting one end of a silica gel catheter into the middle of the selected pig heart muscle fragment, wherein the inner diameter of the silica gel catheter is 1.0mm, the other end of the silica gel catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is contained in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the silica gel catheter positioned in the simulated uterine polyp is flush with the inner wall of the uterine primary mold;
s5, the upper mold 3 and the lower mold 4 of the compression device 1 are combined, and then the upper mold 3 and the lower mold 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 8
S1, selecting fresh beef hearts as raw materials;
s2, preprocessing the cow hearts selected in the step S1 to obtain a primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the tendon cables of the cow heart and the interval inside the cow heart by using a pair of surgical scissors to communicate the cavities of the cow heart;
s22, thinning: using a surgical scissors to cut off the myocardial tissue from the inner side wall of the heart of the cow outwards to reduce the thickness of the myocardial tissue of the heart of the cow and keep the myocardial tissue of the outer surface of the heart of the cow and 1.0cm below the outer surface of the heart of the cow;
s23, overturning: turning the inner side wall of the thinned cow heart outwards from the opening at the top end of the cow heart to turn the outer wall of the cow heart into an inner surface, thereby preparing a uterus primary mold 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the cow heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to all parts of the inner wall of the cavity 5;
s4, cutting off the bovine heart muscle of the uterine cavity primary mold 2 outside the stitching device 1 in the step S3, and taking the cut-off bovine heart muscle fragments for later use; selecting one from the cattle heart muscle fragments cut off in the step S4, inserting one end of a child scalp vein needle catheter into the middle of the selected cattle heart muscle fragments, wherein the other end of the child scalp vein needle catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is filled in the blood bag, prepared simulated uterine polyps are inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyps penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the child scalp vein needle catheter positioned in the simulated uterine polyps is flush with the inner wall of the uterine primary mold;
s5, the upper die 3 and the lower die 4 of the compression device 1 are combined, and then the upper die 3 and the lower die 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 9
S1, selecting fresh sheep hearts as raw materials;
s2, preprocessing the sheep heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the sheep heart and the interval inside the sheep heart by using surgical scissors to communicate the cavities of the sheep heart;
s22, thinning: using an operating scissors to cut off the myocardial tissue from the inner side wall of the sheep heart outwards to reduce the thickness of the myocardial tissue of the sheep heart and keep the myocardial tissue of the outer surface of the sheep heart and 1.0cm below the outer surface of the sheep heart;
s23, overturning: turning the inner side wall of the thinned sheep heart outwards from the opening at the top end of the sheep heart to turn the outer wall of the sheep heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the goat heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to each part of the inner wall of the cavity 5;
s4, cutting the sheep heart muscle of the uterine cavity primary mold 2 outside the stitching device 1 in the step S3, and taking the cut sheep heart muscle fragments for later use; selecting one of the sheep heart muscle fragments sheared in the step S4, inserting one end of a silica gel catheter into the middle of the selected sheep heart muscle fragment, wherein the inner diameter of the silica gel catheter is 1.2mm, the other end of the silica gel catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is contained in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the silica gel catheter positioned in the simulated uterine polyp is flush with the inner wall of the uterine primary mold;
s5, the upper die 3 and the lower die 4 of the compression device 1 are closed, and then the upper die 3 and the lower die 4 are pressed and fixed by using a bandage, thereby obtaining the animal heart simulated uterus containing the compression device 1.
Example 10
S1, selecting fresh sheep hearts as raw materials;
s2, preprocessing the sheep heart selected in the step S1 to obtain the primary uterus model 2, which comprises the following steps:
s21, communication: cutting off the chordae tendineae of the sheep heart and the interval inside the sheep heart by using surgical scissors to communicate the cavities of the sheep heart;
s22, thinning: using an operating scissors to cut off the myocardial tissue from the inner side wall of the sheep heart outwards to reduce the thickness of the myocardial tissue of the sheep heart and keep the myocardial tissue of the outer surface of the sheep heart and 1.0cm below the outer surface of the sheep heart;
s23, overturning: turning the inner side wall of the thinned sheep heart outwards from the opening at the top end of the sheep heart to turn the outer wall of the sheep heart into an inner surface, thereby preparing a primary uterus mould 2;
s3, placing the primary uterus mould 2 obtained in the step S2 into the cavity 5 of the lower mould 4 of the stitching device 1, clamping the tip part of the primary uterus mould 2, namely the heart tip part of the goat heart, into the uterine horn 14 on one side of the stitching device 1, and manually adjusting the position of the primary uterus mould 2 in the cavity 5 to enable the primary uterus mould 2 to be tightly attached to each part of the inner wall of the cavity 5;
s4, cutting the sheep heart muscle of the uterine cavity primary mold 2 outside the stitching device 1 in the step S3, and taking the cut sheep heart muscle fragments for later use;
selecting one of the sheep heart muscle fragments cut off in the step S4, inserting one end of a child scalp vein needle catheter into the middle of the selected sheep heart muscle fragment, wherein the other end of the child scalp vein needle catheter is communicated with an infusion apparatus 21, the other end of the infusion apparatus 21 is communicated with a blood bag, simulated blood is filled in the blood bag, the prepared simulated uterine polyp is inserted into the uterine primary mold through the edge of a stitching device, the end part of the simulated uterine polyp penetrates through the stitching device and extends into the inner cavity of the uterine primary mold, and the end part of the child scalp vein needle catheter positioned in the simulated uterine polyp is flush with the inner wall of the uterine primary mold;
s5, the upper die 3 and the lower die 4 of the compression fitting device 1 are fitted together, and then the upper die 3 and the lower die 4 are fixed by pressing with a bandage, thereby obtaining a simulated uterus.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (11)
1. An animal heart simulated uterus containing a compression device, characterized in that: the simulated uterus comprises a stitching device and a primary uterus mold positioned in the stitching device.
2. An animal heart simulated uterus containing a compression device as claimed in claim 1 wherein: the pressfitting ware is provided with the die cavity that is used for holding the uterus primary mould including the last mould and the lower mould that the symmetry set up in going up the mould, goes up the one end of mould and has seted up the under shed, goes up the both sides of the mould other end and has all seted up the upper shed.
3. An animal heart simulated uterus containing a compression device as claimed in claim 2 wherein: the uterus initial mold is made by the animal heart, and the uterus initial mold is lower extreme open-ended cavity structure, and the outer wall of uterus initial mold laminates with the inner wall of pressfitting ware mutually, and palace mouth has been seted up to the one end of uterus initial mold, and the position that uterus initial mold and last opening laminated mutually is the palace angle, and the uterus initial mold department between two palace angles is the palace end, and the uterus initial mold from the bottom up between palace mouth to the palace angle is cervix, palace body in proper order.
4. An animal heart simulated uterus containing a compression device as claimed in claim 3 wherein: the simulated uterus further comprises a simulated uterine polyp comprising animal heart muscle fragments, one end of which passes through the outer wall of the primary uterine model and extends into the inner cavity of the primary uterine model.
5. An animal heart simulated uterus containing a compression device as claimed in claim 4 wherein: the animal heart muscle fragments penetrate through the catheter, the end part of the catheter positioned in the animal heart muscle fragments is flush with the inner wall of the uterus primary mould, the other end of the catheter extends to the outside of the stitching device and is connected with an infusion apparatus, and the end part of the infusion apparatus is communicated with a blood bag for containing simulated blood.
6. An animal heart simulated uterus containing a compression device as claimed in claim 5 wherein: the catheter is selected from a silica gel catheter or a child scalp intravenous needle catheter, and the inner diameter of the silica gel catheter is 1.0-1.5 mm.
7. An animal heart simulated uterus containing a compression device as claimed in claim 3 wherein: the animal heart is selected from any one of pig heart, cattle heart or sheep heart.
8. A method for preparing a uterus simulator for an animal's heart comprising a compression device according to any one of claims 1 to 7, characterized in that it comprises at least the following steps:
s1, selecting fresh animal hearts as raw materials;
s2, pretreating the animal heart selected in the step S1 to obtain a primary uterus model;
s3, placing the primary uterus mould obtained in the step S2 into a mould cavity of a lower mould of a stitching device, and adjusting the position of the primary uterus mould in the mould cavity to enable each part of the outer wall of the primary uterus mould to be tightly attached to the inner wall of the mould cavity;
s4, cutting off animal heart muscle of the uterine cavity primary mold outside the stitching device in the step S3, and reserving the cut animal heart muscle fragments for standby;
and S5, matching the upper die and the lower die of the stitching device, and then pressing and fixing the upper die and the lower die by using a fixing band, thereby preparing the animal heart simulated uterus containing the stitching device.
9. The method of claim 8, wherein the step of preparing a simulated uterus of an animal heart comprises the steps of: the pretreatment of animal hearts comprises the following steps:
s21, communication: cutting off chordae tendineae of the animal heart and intervals inside the animal heart by using a pair of surgical scissors to enable all cavities of the animal heart to be communicated;
s22, thinning: using a surgical scissors to cut off the myocardial tissue from the inner side wall of the animal heart outwards to reduce the thickness of the myocardial tissue of the animal heart and reserve the outer surface of the animal heart and the myocardial tissue 1.0-1.5cm below the outer surface of the animal heart;
s23, overturning: and (3) turning the inner side wall of the thinned animal heart outwards from the opening at the top end of the animal heart, so that the outer wall of the animal heart is turned into the inner side, thereby preparing the primary uterus model.
10. A method of preparing a compression device-containing simulated uterus of an animal heart as claimed in claim 9 wherein: step S3 specifically includes: the tip of the primary uterus mould is clamped into the uterine horn mould cavity at one side of the stitching device, and the position of the primary uterus mould in the mould cavity is manually adjusted, so that the primary uterus mould is tightly jointed with all parts of the inner wall of the mould cavity.
11. The method of claim 7, wherein the step of preparing the uterus simulator comprises: the method also comprises the preparation of the simulated uterine polyp, and the specific preparation method comprises the following steps: selecting one animal heart muscle fragment obtained in the step S4, inserting one end of a catheter with the inner diameter of 1.0-1.5mm into the middle of the selected animal heart muscle fragment, wherein the other end of the catheter is communicated with an infusion apparatus, the other end of the infusion apparatus is communicated with a blood bag, and simulated blood is contained in the blood bag; after step S4, the prepared simulated uterine polyp is inserted into the primary uterine model through the edge of the stitching device, the end of the simulated uterine polyp passes through the stitching device and extends into the inner cavity of the primary uterine model, and the end of the catheter in the simulated uterine polyp is flush with the inner wall of the primary uterine model.
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| CN114419971A (en) * | 2022-03-11 | 2022-04-29 | 北京博医时代教育科技有限公司 | Uterus model, hysteroscope operation training model and manufacturing method thereof |
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| CN114419971A (en) * | 2022-03-11 | 2022-04-29 | 北京博医时代教育科技有限公司 | Uterus model, hysteroscope operation training model and manufacturing method thereof |
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