CN111354254A - Manufacturing method of cow reproductive system model and cow reproductive system model - Google Patents

Abstract

The invention discloses a manufacturing method of a cow reproductive system model and the cow reproductive system model, which solve the problem that no animal simulation model for animal husbandry exists in the prior art. The invention relates to a method for manufacturing a cow reproductive system model, which comprises the following steps: step 1: bone preparation: 3D printing is adopted to manufacture a cow pelvic bone model and a cow femoral model; step 2: preparing a reproductive organ: adopting a silica gel reverse mould to manufacture a cow reproductive organ model; and step 3: preparing a rectum: preparing a cow rectum model by adopting liquid latex; and 4, step 4: manufacturing a body: manufacturing a cow body model by adopting a reverse mould; and 5: and assembling the model to obtain the cow reproductive system model. The invention has scientific design, simple method and simple and convenient operation. The model can be used for guiding artificial insemination and fetal detection and improving the strength of livestock and veterinary doctors.

Description

Manufacturing method of cow reproductive system model and cow reproductive system model

Technical Field

The invention belongs to the technical field of animal model preparation, and particularly relates to a cow reproductive system model and a manufacturing method thereof.

Background

Simulation models are widely used in medical treatment and teaching at present. As a traditional effective teaching tool, the intuitive and safe operability of the simulation model becomes an important means for practical teaching. However, in the prior art, the simulation model is mostly used for human body medical tests or teaching, and is used for manufacturing organs or models of specific parts of a human body.

The CN103871305A patent discloses a human anatomy conduit model and a method for making the same,

the CN104700698A patent discloses a method for making a simulated human body model based on radiation detection,

the CN105666762A patent discloses a method for manufacturing a personalized hip joint spacer mold. There is no animal simulation model for animal husbandry. Therefore, the provision of a simulated animal model, which is simple and intuitive and is used for teaching guidance, is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The technical problem solved by the invention is as follows: provides a manufacturing method of a cow reproductive system model, and solves the problem that no animal simulation model for animal husbandry exists in the prior art.

The invention also provides a cow reproductive system model prepared by the preparation method.

The technical scheme adopted by the invention is as follows:

the invention relates to a method for manufacturing a cow reproductive system model, which comprises the following steps:

step 1: bone preparation: 3D printing is adopted to manufacture a cow pelvic bone model and a cow femoral model;

step 2: preparing a reproductive organ: adopting a silica gel reverse mould to manufacture a cow reproductive organ model;

and step 3: preparing a rectum: preparing a cow rectum model by adopting liquid latex;

and 4, step 4: manufacturing a body: manufacturing a cow body model by adopting a reverse mould;

and 5: and assembling the model to obtain the cow reproductive system model.

Further, in the step 1, pelvis and femur entities of young cows are adopted for three-dimensional scanning modeling, bone structure data are scanned, the modeling is carried out by using Mimics software, a visual three-dimensional model is generated, the pelvis, the femur and the vertebra are respectively subjected to network optimization in Geomagic software, and 3D printing is carried out by adopting framework materials, so that a cow pelvis model and a cow femur model are obtained.

Further, the cow reproductive organ models include a non-pregnant reproductive organ model, a 12-week-old pregnant reproductive organ model, and a 19-week-old pregnant reproductive organ model.

Further, in the step 2, the specific manufacturing process is as follows:

a, manufacturing female molds of external structures of a vagina, a cervix, a uterus body, a uterine horn and an ovary of a cow by using a reverse mold technology;

b, using a glue injection through technology, stripping the tissue body after glue injection solidification, and manufacturing an internal channel structure occupying model of the vagina, cervix, uterus body and uterine horn of the cow;

step C, respectively placing the internal channel structure occupation models obtained in the step B into female molds of corresponding external structures, designing inflow ports and outflow ports of injection molds, and carrying out silica gel injection molding, so as to respectively obtain a cow vagina model, a cow cervix model, a cow uterus body model and a cow uterus horn model; the cow ovary model is directly manufactured by silica gel injection molding of a female die of a cow ovary external structure;

step D: sequentially adhering a cow vagina model, a cow cervix model, a cow uterus body model and a cow uterine horn model by using silica gel glue; and (3) adhering the cow ovary model to the tail part of the cow uterine horn model to obtain the cow reproductive organ model.

Further, in the step C, a specific method of silica gel injection molding of the cow vagina model, the cow uterus body model, the cow uterine horn model and the cow ovary model comprises the following steps: a, B components of the liquid silica gel are uniformly mixed according to the mass ratio of 1:1, a small amount of silicone oil is added, and the mixture can be poured after vacuum defoaming, wherein the operation time is controlled within 0.5 h; the room temperature quick-drying operation time is less than 20min, and the vulcanization time is 4 h; when the cow cervix silica gel is injected into a mold, 2 percent of fumed silica is added into A, B component according to the ratio of 1:1 mixed liquid to be uniformly mixed, a small amount of silicone oil is added, pouring can be carried out after vacuum defoaming, and the operation time is controlled within 0.5 h; the room temperature quick drying type operation time is less than 20min, and the vulcanization time is 4 h.

Further, the specific operation process of step 3 is as follows: firstly, manufacturing a cow rectum stainless steel mould, immersing a clean cow rectum stainless steel mould into a latex groove filled with liquid latex, slowly pulling up the mould, slowly rotating the mould in clean air, and baking the mould at high temperature to enable the latex to uniformly cover the surface of the mould; and soaking, rotating and baking for 4-6 times of circulation, rolling up the rubber film at the edge of the uppermost part when the thickness of the rubber film on the cow rectum stainless steel mold meets the requirement, manufacturing a small rubber ring, soaking in cold water, flushing, taking out, and dehydrating and drying.

Further, in step 4, the cow body model is divided into an upper body mould and a lower body mould, and the specific manufacturing process is as follows: make respectively the bed die of mould and body lower mould is gone up to the body, puts into body lower mould bed die with cow pelvis bone model, cow thighbone model that step 1 made, carries out a small amount of injection moulds respectively to mould and body lower mould on the body again, and hot-blast liquid silica gel weathers around the bone rapidly, and after silica gel was fixed around the bone, carries out the complete injection mould to mould and body lower mould on the body is obtained.

Further, the body upper die is provided with an anus opening, after the body upper die is formed, the angle from the anus to the lower part is 45 degrees, the hole is turned, the aperture is 1cm, and the aperture outlet is adhered to the opening silica gel glue of the cow rectum model;

the two sides of the upper body mould are provided with sacrum protrusions, and the two sides of the lower body mould are provided with embedding openings matched with the sacrum protrusions and used for fixing the upper body mould and the lower body mould;

and groove channels with different sizes are arranged in the lower body die and are used for placing reproductive organ models in different pregnancy periods.

Further, the cow reproductive organ model is loaded into a cow body model to obtain the cow reproductive system model.

The cow reproductive system model prepared by the preparation method.

Compared with the prior art, the invention has the following beneficial effects:

the invention has scientific design, simple method and simple and convenient operation. The invention is based on the livestock production industry, realizes a model of various organs (intestinal tract, reproductive organs, body and skeleton) of the cow posterior trunk which is built by mixing 3D printing and reverse mold technology for the first time, and performs detachable design (including non-pregnant cow and pregnant cow genital models in different embryo periods) at different stages on the reproductive organ model. The model can be used for guiding artificial insemination and fetal detection and improving the strength of livestock and veterinary doctors.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of examination of the sacrum and fetus of cow in 110d gestation.

FIG. 3 is a schematic view of the sacrum (upper) and femur (lower) of a cow.

Fig. 4 is a schematic representation of the genitalia of a cow.

FIG. 5 is a schematic diagram of the uterine horn during pregnancy of a cow at 12 weeks of age.

FIG. 6 is a schematic diagram of the uterine horn during pregnancy of a cow at 19 weeks of age.

FIG. 7 is a schematic diagram of a stainless steel rectal mold and rectum for cow.

FIG. 8 is a schematic representation of a cow soma model.

Fig. 9 is a schematic view of a lower part of the body.

Fig. 10 is a schematic view of the upper body mold.

FIG. 11 is a schematic view of a mold assembly.

Detailed Description

The technical solution of the present invention will be further described with reference to the following specific examples, but the present invention is not limited to these examples.

Examples

The embodiment discloses a method for manufacturing a cow reproductive system model, which comprises the following steps:

1: step 1: bone preparation: 3D printing is adopted to manufacture a cow pelvic bone model and a cow femoral model; the method specifically comprises the following steps: the method comprises the steps of carrying out three-dimensional scanning modeling by adopting pelvic bone and femoral solid bodies of young cows, scanning bone structure data, carrying out modeling by using Mimics software to generate a visual three-dimensional model, carrying out network optimization on the pelvic bone, the femoral bone and the vertebra in the Geomagic software respectively, and carrying out 3D printing by adopting framework materials to obtain a cow pelvic bone model and a cow femoral model. The schematic diagram of the sacrum and fetus of pregnant cow 110d is shown in figure 2, and the schematic diagram of the sacrum (upper) and femur (lower) of cow is shown in figure 3.

The framework material comprises thermosetting resin and high-phosphorus high-calcium compound powder, wherein the high-phosphorus high-calcium compound powder is prepared from apatite and calcium carbonate in a proportion of 3: 1, the high-phosphorus high-calcium compound powder has the following mass content distribution in different bone tissue materials: pelvic bone (20%), femur (30%) and other raw materials are thermosetting resin. The main function of the femur in the model is to support the posterior trunk model and to increase the center of gravity stability of the posterior trunk.

2: step 2: preparing a reproductive organ: adopting a silica gel reverse mould to manufacture a cow reproductive organ model;

the cow reproductive organ models comprise a non-pregnant reproductive organ model, a 12-week-old pregnant reproductive organ model and a 19-week-old pregnant reproductive organ model.

The specific manufacturing process in the step 2 is as follows:

a, manufacturing female molds of external structures of a vagina, a cervix, a uterus body, a uterine horn and an ovary of a cow by using a reverse mold technology;

b, using a glue injection through technology, stripping the tissue body after glue injection solidification, and manufacturing an internal channel structure occupying model of the vagina, cervix, uterus body and uterine horn of the cow;

step C, respectively placing the internal channel structure occupation models obtained in the step B into female molds of corresponding external structures, designing inflow ports and outflow ports of injection molds, and carrying out silica gel injection molding, so as to respectively obtain a cow vagina model, a cow cervix model, a cow uterus body model and a cow uterus horn model; the cow ovary model is directly manufactured by silica gel injection molding of a female die of a cow ovary external structure;

the specific method for injecting the cow vagina model, the cow uterus body model, the cow uterine horn model and the cow ovary model by using the silica gel comprises the following steps: a, B components of the liquid silica gel are uniformly mixed according to the mass ratio of 1:1, a small amount of silicone oil is added, and the mixture can be poured after vacuum defoaming, wherein the operation time is controlled within 0.5 h; the room temperature quick-drying operation time is less than 20min, and the vulcanization time is 4 h; when the cow cervix silica gel is injected into a mold, 2 percent of fumed silica is added into A, B component according to the ratio of 1:1 mixed liquid to be uniformly mixed, a small amount of silicone oil is added, pouring can be carried out after vacuum defoaming, and the operation time is controlled within 0.5 h; the room temperature quick drying type operation time is less than 20min, and the vulcanization time is 4 h.

The parameters of the liquid silica gel were as follows:

liquid silica gel principal parameters

Model number	E605A/B
		Appearance of the product	Skin tone/translucency
A. The mass ratio of the component B	1：1
		Viscosity (CPS)	2400
Hardness (JIS A)	10
		Tear strength (KN/m)	65
Tensile strength (Mpa)	5
		Elongation at Break (%)	340
Operable time (25 ℃/h)	0.5-1

Step D: sequentially adhering a cow vagina model, a cow cervix model, a cow uterus body model and a cow uterine horn model by using silica gel glue; the cow ovary model was attached to the tail of the cow uterine horn model to obtain a cow reproductive organ model, as shown in fig. 4.

3. And step 3: preparing a rectum: the liquid latex is adopted to manufacture the cow rectum model, and the specific operation process is as follows:

first, a cow rectal stainless steel mold with a diameter of 50mm was made, as shown in fig. 7 (left). Immersing a clean cow rectum stainless steel mould into a latex groove filled with liquid latex at 21 ℃, wherein the immersion depth is 400mm, slowly pulling up, slowly rotating in clean air, and baking at a high temperature of 116 ℃ to enable the latex to uniformly cover the surface of the mould; and (3) soaking, rotating and baking for 4-6 times of circulation, rolling up the rubber film at the edge of the uppermost part after the thickness of the rubber film on the cow rectum stainless steel mold meets the requirement, making a small rubber circle, soaking in cold water, flushing with water, taking out, dehydrating and drying to obtain the cow rectum model shown in the attached figure 7 (right). The liquid latex raw material formulation is shown in the following table:

raw material formula table of liquid latex

Composition (I)	Parts by mass
		Natural latex	100
Zinc oxide	0.7
		Potassium hydroxide	0.1
Promoter PX	0.8
		Casein	0.2
Sulfur	1
		Anti-aging agent 264	0.8

And 4, step 4: manufacturing a body: manufacturing a cow body model by adopting a reverse mould;

as shown in fig. 8, the cow carcass model is divided into an upper carcass mold and a lower carcass mold. The specific manufacturing process comprises the following steps: make respectively the bed die of mould and body lower mould is gone up to the body, puts into body lower mould bed die with cow pelvis bone model, cow thighbone model that step 1 made, carries out a small amount of injection moulds respectively to mould and body lower mould on the body again, and hot-blast liquid silica gel weathers around the bone rapidly, and after silica gel was fixed around the bone, carries out the complete injection mould to mould and body lower mould on the body is obtained.

Further, as shown in fig. 10, the body upper mold is provided with an anus opening, after the body upper mold is formed, the angle from the anus to the lower part is 45 degrees, the hole is turned, the hole diameter is 1cm, and the hole diameter outlet is adhered to the opening silica gel glue of the cow rectum model;

as shown in fig. 10, sacral protrusions are arranged on both sides of the upper mold of the body; as shown in fig. 9, two sides of the lower body mold are provided with embedding openings matched with the sacrum protrusions for fixing the upper body mold and the lower body mold;

and groove channels with different sizes are arranged in the lower body die and are used for placing reproductive organ models in different pregnancy periods.

And 5: fig. 11 shows that the model is assembled, and the cow reproductive organ model is placed in a groove channel in the lower body mold to obtain the cow reproductive system model.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.

Claims (10)

1. A method for manufacturing a cow reproductive system model is characterized by comprising the following steps:

step 1: bone preparation: 3D printing is adopted to manufacture a cow pelvic bone model and a cow femoral model;

step 2: preparing a reproductive organ: adopting a silica gel reverse mould to manufacture a cow reproductive organ model;

and step 3: preparing a rectum: preparing a cow rectum model by adopting liquid latex;

and 4, step 4: manufacturing a body: manufacturing a cow body model by adopting a reverse mould;

and 5: and assembling the model to obtain the cow reproductive system model.

2. The method for making the cow reproductive system model according to claim 1, wherein in step 1, the pelvis and femoral solid of a young cow are adopted for three-dimensional scanning modeling, bone structure data are scanned, the modeling is performed by using a Mimics software to generate a visual three-dimensional model, the pelvis, the femur and the vertebra are respectively subjected to network optimization in a Geomagic software, and a framework material is adopted for 3D printing to obtain a cow pelvis bone model and a cow femoral model.

3. The method of claim 1, wherein the reproductive organ models of cows include a non-pregnant reproductive organ model, a 12-week-old pregnant reproductive organ model and a 19-week-old pregnant reproductive organ model.

4. The method for making a cow reproductive system model according to claim 1, wherein in the step 2, the specific making process is as follows:

a, manufacturing female molds of external structures of a vagina, a cervix, a uterus body, a uterine horn and an ovary of a cow by using a reverse mold technology;

b, using a glue injection through technology, stripping the tissue body after glue injection solidification, and manufacturing an internal channel structure occupying model of the vagina, cervix, uterus body and uterine horn of the cow;

step C, respectively placing the internal channel structure occupation models obtained in the step B into female molds of corresponding external structures, designing inflow ports and outflow ports of injection molds, and carrying out silica gel injection molding, so as to respectively obtain a cow vagina model, a cow cervix model, a cow uterus body model and a cow uterus horn model; the cow ovary model is directly manufactured by silica gel injection molding of a female die of a cow ovary external structure;

step D: sequentially adhering a cow vagina model, a cow cervix model, a cow uterus body model and a cow uterine horn model by using silica gel glue; and (3) adhering the cow ovary model to the tail part of the cow uterine horn model to obtain the cow reproductive organ model.

5. The method for preparing a model of cow reproductive system according to claim 4, wherein the specific method for injecting silica gel into the cow vaginal model, cow uterine body model, cow uterine horn model and cow ovary model in step C comprises: a, B components of the liquid silica gel are uniformly mixed according to the mass ratio of 1:1, a small amount of silicone oil is added, and the mixture can be poured after vacuum defoaming, wherein the operation time is controlled within 0.5 h; the room temperature quick-drying operation time is less than 20min, and the vulcanization time is 4 h; when the cow cervix silica gel is injected into a mold, 2 percent of fumed silica is added into A, B component according to the ratio of 1:1 mixed liquid to be uniformly mixed, a small amount of silicone oil is added, pouring can be carried out after vacuum defoaming, and the operation time is controlled within 0.5 h; the room temperature quick drying type operation time is less than 20min, and the vulcanization time is 4 h.

6. The method for making a cow reproductive system model according to claim 1, wherein the specific operation process of step 3 is as follows: firstly, manufacturing a cow rectum stainless steel mould, immersing a clean cow rectum stainless steel mould into a latex groove filled with liquid latex, slowly pulling up the mould, slowly rotating the mould in clean air, and baking the mould at high temperature to enable the latex to uniformly cover the surface of the mould; and soaking, rotating and baking for 4-6 times of circulation, rolling up the rubber film at the edge of the uppermost part when the thickness of the rubber film on the cow rectum stainless steel mold meets the requirement, manufacturing a small rubber ring, soaking in cold water, flushing, taking out, and dehydrating and drying.

7. The method for manufacturing the cow reproductive system model according to claim 1, wherein in the step 4, the cow body model is divided into an upper body mould and a lower body mould, and the specific manufacturing process comprises the following steps: make respectively the bed die of mould and body lower mould is gone up to the body, puts into body lower mould bed die with cow pelvis bone model, cow thighbone model that step 1 made, carries out a small amount of injection moulds respectively to mould and body lower mould on the body again, and hot-blast liquid silica gel weathers around the bone rapidly, and after silica gel was fixed around the bone, carries out the complete injection mould to mould and body lower mould on the body is obtained.

8. The method for making the cow reproductive system model according to claim 7, wherein the body upper mold is provided with an anus opening, after the body upper mold is formed, the angle from the anus to the lower part is 45 degrees, the hole is turned, the hole diameter is 1cm, and the hole outlet is adhered to the open silica gel glue of the cow rectum model;

the two sides of the upper body mould are provided with sacrum protrusions, and the two sides of the lower body mould are provided with embedding openings matched with the sacrum protrusions and used for fixing the upper body mould and the lower body mould;

and groove channels with different sizes are arranged in the lower body die and are used for placing reproductive organ models in different pregnancy periods.

9. The method of claim 1, wherein the model of the reproductive system of a cow is obtained by placing the model of the reproductive organ into a model of a cow body.

10. A cow reproductive system model prepared by the method of any one of claims 1 to 9.

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