CN117133178A - Spermatic cord and vas deferens microsurgery simulation teaching aid - Google Patents
Spermatic cord and vas deferens microsurgery simulation teaching aid Download PDFInfo
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- CN117133178A CN117133178A CN202311124364.6A CN202311124364A CN117133178A CN 117133178 A CN117133178 A CN 117133178A CN 202311124364 A CN202311124364 A CN 202311124364A CN 117133178 A CN117133178 A CN 117133178A
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- 210000004267 spermatic cord Anatomy 0.000 title claims abstract description 77
- 210000001177 vas deferen Anatomy 0.000 title claims abstract description 24
- 238000004088 simulation Methods 0.000 title claims abstract description 22
- 238000002406 microsurgery Methods 0.000 title claims abstract description 20
- 239000011664 nicotinic acid Substances 0.000 claims abstract description 43
- 210000004013 groin Anatomy 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 23
- 230000004308 accommodation Effects 0.000 claims description 13
- 238000013459 approach Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 abstract description 4
- 241001465754 Metazoa Species 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract 2
- 210000000918 epididymis Anatomy 0.000 abstract 1
- 201000010063 epididymitis Diseases 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 210000003195 fascia Anatomy 0.000 description 10
- 210000001367 artery Anatomy 0.000 description 9
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 210000003462 vein Anatomy 0.000 description 4
- 210000001550 testis Anatomy 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 206010003883 azoospermia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000007879 vasectomy Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- General Physics & Mathematics (AREA)
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- Mathematical Analysis (AREA)
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- General Health & Medical Sciences (AREA)
- Algebra (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The application belongs to the technical field of medical appliances, and particularly relates to a simulation teaching aid for microscopic operation of spermatic cord and vas deferens, which is mainly used for: in the practice of microsurgery in men, an exercise device is provided for a surgery beginner; to simulate practicing spermatic cord and vas deferens related surgical procedures; by setting a spermatic cord model; a model body for simulating a part of a human body and provided with a groove at the groin of the corresponding human body, wherein the spermatic cord model is arranged in the groove; the bionic skin layer is used for simulating the human skin layer and is arranged in the groove, so that the spermatic cord model in the groove is covered; after the bionic skin layer is cut, the spermatic cord model can be partially pulled out of the groove to perform simulated operation, and the simulated operation is mainly solved: the traditional male microsurgery teaching aid product cannot simulate the size and the texture of a true human organ; the vas deferens, epididymis and human organs of animals are also widely different; the real patient cannot be used for the operation beginner to practice.
Description
Technical Field
The application belongs to the technical field of medical instruments, and particularly relates to a simulation teaching aid for microscopic operation of spermatic cord and vas deferens.
Background
Microsurgery vasectomy is one of the important methods for treating obstructive azoospermia in current medicine, and involves that the two broken ends of vas deferens, because the tissue structures of the anastomosed parts are the same, the diameters are similar, the suturing difficulty is high, the operation difficulty is high, the doctor is required to have exquisite microsurgery technology and abundant clinical experience, and the operation is required to establish a relatively good, smooth and leak-proof anastomosis on the lumen with the diameter of only about 0.3-0.4 MM.
In clinic, practitioners of microsurgery in men lack good simulation teaching aids, and in the past, tourniquets are mostly adopted for suture practice, so that the device cannot simulate the size and the texture of organs of a real person; the organs of the vas deferens of the animals are also greatly different; the actual patient cannot be exercised by the operative beginner.
The application provides a simulation teaching aid for seminal cord and vas deferens microsurgery aiming at the problems.
Disclosure of Invention
In order to overcome the problems in the background art, the application adopts the following technical scheme:
a simulation teaching aid for spermatic cord and vas deferens microsurgery, comprising:
a spermatic cord model; having two connection sections opposite to each other and an operation section connecting the two connection sections;
the model body is used for simulating a part of human body, a groove is formed in the position, corresponding to the groin of the human body, of the model body, and the spermatic cord model is installed in the groove through two opposite connecting sections;
a simulated skin layer; the bionic skin layer is arranged in the groove, so that the spermatic cord model in the groove is covered; after the bionic skin layer is cut, the operation section of the spermatic cord model can be partially pulled out of the groove to perform simulated operation.
In some embodiments of the application, the bionic skin layer is detachably disposed in the groove; the bionic skin layer is provided with a top end face, and after the bionic skin layer is arranged in the groove, the top end face of the bionic skin layer and the outer wall of the model body are in smooth transition.
Further, the inner wall of the groove is provided with the groove, the groove is separated from the bottom surface of the groove, and the outer wall of the bionic skin layer is provided with a bulge, wherein the bulge is clamped into the clamping groove, so that the bionic skin layer and the groove form a connection relationship.
In some embodiments of the present application, a connection port is formed on two inner walls of the groove, where the connection port includes: the first connecting port and the second connecting port are arranged in a mirror image mode; the two connecting sections of the spermatic cord model are respectively and independently connected to a first connecting port and a second connecting port.
Further, the first connection port includes:
the accommodating groove is formed in the inner wall of the groove;
and the connecting pipe is arranged in the accommodating groove, wherein the connecting section of the spermatic cord model is spliced with the connecting pipe.
Further, a blocking member is disposed in the accommodating groove and on an outer wall of the connecting section, wherein after the connecting section is connected with the connecting pipe, the blocking member can act on the connecting section, so that the connecting section is always connected with the connecting pipe.
Further, the barrier includes:
a placing cavity is formed in the inner wall of the accommodating groove along the direction perpendicular to the axial direction of the accommodating groove, and the placing cavity is communicated with the accommodating groove;
a stopper disposed in the accommodation groove and the placement chamber and movable in an axial direction along an axis of the placement chamber, wherein one end of the stopper located in the accommodation groove has an inclined end surface;
the blocking edge is arranged along the edge of the port of the connecting section and is provided with a first arc-shaped end face and a concave part formed on the opposite side of the first arc-shaped end face;
the sliding piece is arranged on the outer wall of the connecting section in a sliding mode, and can move along the axial direction of the axis of the connecting section when a force is applied to the sliding piece, wherein the sliding piece is provided with a second arc-shaped end face and a third arc-shaped end face; the second arc-shaped end surface can be matched into the concave part, so that the blocking edge and the sliding piece form a connection relation;
the spring is arranged in the placing cavity, one end of the spring is connected to one end of the stop piece, and the other end of the spring is connected to the inner wall of the placing cavity, so that the stop piece always approaches to the central line of the accommodating groove;
when the connecting section is inserted into the connecting pipe, the first arc-shaped end face of the blocking edge acts on the inclined end face of the stop piece, so that the stop piece is far away from the axis of the accommodating groove; and compressing said spring, said spring expanding after said flange passes said stop member such that said stop member is positioned between said flange and said slider; so that the connection end cannot be separated from the connection pipe.
Further, the diameter of the connecting section is smaller than that of the operating section, and a retainer ring is formed at the joint of the connecting section and the operating end, so that the sliding piece is limited between the retaining edge and the retainer ring.
Further, after the stopper is located between the stopper edge and the slider, the connecting section is pushed to move the slider toward the stopper, so that the second arc-shaped end face is in tangential relation with the inclined end face of the stopper, and the spring is compressed, wherein after the second arc-shaped end face is out of tangential relation with the stopper, the stopper is in connection with the third arc-shaped end face, and the second arc-shaped end face is fitted to the concave portion, so that when the connecting section is withdrawn from the accommodating groove, the connecting section moves axially in the accommodating groove.
Further, the two connecting sections are identical in structure.
The application has the beneficial effects that:
1. the model body, the spermatic cord model matched with the model body and the bionic skin layer are arranged; the real restoration of the structure of the operation area is realized to realize the simulation training of the whole process of the spermatic cord and vas deferens microsurgery by the user.
2. By arranging the blocking piece, the spermatic cord model is prevented from being separated from the groove due to traction in the simulation operation process after being installed in the groove; thereby ensuring the fluency of the simulation operation.
Drawings
FIG. 1 is a schematic view of a molded body according to the present application;
FIG. 2 is a schematic diagram of the groove position structure of the present application;
FIG. 3 is a schematic diagram showing the structure of the spermatic cord model in the groove;
FIG. 4 is a schematic diagram of the structure of the bionic skin layer separated from the model body;
FIG. 5 is a schematic view of the structure of the manipulation section of the spermatic cord model of the present application after being pulled out of the groove;
FIG. 6 is a schematic view of the position of the operation section of the spermatic cord model of the present application in the bionic skin layer after being pulled out;
FIG. 7 is a schematic view of a water injection pipeline according to the present application;
FIG. 8 is a schematic diagram of the first connection port and the second connection port according to the present application;
FIG. 9 is a schematic diagram of a structure of the spermatic cord model of the present application after connecting with a first connection port and a second connection port;
FIG. 10 is a schematic view showing the structure of the retaining edge in the accommodating groove;
FIG. 11 is a schematic view of the structure of the sliding member of the present application after the sliding member is connected to the retaining rim;
FIG. 12 is a schematic view of the structure of the connecting section of the present application during withdrawal from the receiving tank;
FIG. 13 is a schematic view of the overall structure of the spermatic cord model of the present application;
FIG. 14 is a schematic view of a connecting section structure according to the present application;
FIG. 15 is a schematic view of a separator structure according to the present application;
FIG. 16 is a schematic view of the internal structure of the spermatic cord model of the present application;
in the figure, 1, a model body; 11. a groove; 111. a clamping groove; 112. a first connection port; 1121. a receiving groove; 1122. a connecting pipe; 113. a second connection port; 12. a stopper; 121. a blocking edge; 1211. a first arcuate end surface; 1212. a recessed portion; 122. a slider; 1221. a second arcuate end surface; 1222. a third arcuate end surface; 123. a spring; 124. a placement cavity; 13. a bottom plate; 2. a simulated skin layer; 21. a protrusion; 3. a connection section; 31. an operating section; 32. a partition plate; 33. imitation of spermatic cord fascia externa; 34. a water injection pipeline; 35. a water bag.
Detailed Description
The following detailed description of the embodiments of the present application will be made more apparent to those skilled in the art from the following detailed description, in which the application is embodied in several, but not all, embodiments of the application. The application may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the application.
Fig. 1-3 and 13 show the main technical content of this embodiment, and this embodiment provides a simulation teaching aid for spermatic cord and vas deferens microsurgery, which includes:
a spermatic cord model; having two connection sections 3 opposed to each other and an operation section 31 connecting the two connection sections 3;
the model body 1 is used for simulating the human body structure of a part, the model body 1 is provided with a groove 11 at the position corresponding to the spermatic cord of the human body, wherein the spermatic cord model is arranged in the groove 11 through two opposite connecting sections 3;
a bionic skin layer 2; the bionic skin layer 2 is arranged in the groove 11, so that a spermatic cord model in the groove 11 is covered; after the bionic skin layer 2 is cut, the operation section 31 of the spermatic cord model can be partially pulled out of the groove 11 to perform simulated operation.
Referring to fig. 1, in the present embodiment, a human body portion simulated by a model body 1 is a lower abdominal region and a thigh root, wherein the model body 1 as a whole may be made of hard plastic, and the model body 1 may be internally provided with a cavity on the basis of maintaining the appearance thereof in order to reduce the weight of the model body 1; the groove 11 is arranged on the model body 1 and corresponds to the groin of the male human body; more specifically, to maintain the stability of the mold body 1, the mold body 1 is further provided with a bottom plate 13, whereby the mold body 1 can be maintained in a stable state throughout the simulation operation.
More specifically, the mold body 1 may be made of polyethylene, polypropylene, polycarbonate, polystyrene, or the like.
Referring to fig. 1-6, in the present embodiment, the bionic skin layer 2 is detachably disposed in the groove 11; the bionic skin layer 2 is provided with a top end surface, and after the bionic skin layer 2 is arranged in the groove 11, the top end surface of the bionic skin layer 2 and the outer wall of the model body 1 are in smooth transition; more specifically, the inner wall of the groove 11 is provided with a clamping groove 111, the clamping groove 111 is spaced from the bottom surface of the groove 11, the outer wall of the bionic skin layer 2 is provided with a bulge 21, wherein the bulge 21 is clamped into the clamping groove 111, so that the bionic skin layer 2 and the groove 11 form a connection relationship, when a doctor exercises, an operation incision is made on the bionic skin layer 2 by using an operation knife, then the incision is separated from the operation section 31 of the spermatic cord model, and then the simulated operation is performed through the spermatic cord model.
In other embodiments (not shown), a placement area may be further provided at the opening of the groove 11, where the area of the placement area is larger than the area of the bottom of the groove 11, and the area of the bionic skin layer 2 is equal to the area of the placement area, and when in use, the bionic skin layer 2 is placed in the placement area, so that the bionic skin layer 2 covers the groove 11, and a related simulated operation is performed on the bionic skin layer 2.
More specifically, the bionic skin layer 2 can be made of silica gel, latex or simulated skin, and the like, and is mainly used for simulating a human skin layer when in use, and when a doctor performs operation practice, an operation incision is firstly made from the bionic skin layer 2, and then the next simulated operation is performed.
Preferably, the simulated skin layer 2 is disposable, i.e. is replaced after each simulated surgical operation; for the next use.
Referring to fig. 3-4 and 7, in the present embodiment, the groove 11 has a first inner wall, a second inner wall, a third inner wall and a fourth inner wall; the first inner wall, the second inner wall, the third inner wall and the fourth inner wall are opposite to each other, for example, the first inner wall is opposite to the third inner wall, the second inner wall is opposite to the fourth inner wall, the first inner wall is provided with a first connection port 112, the third inner wall is provided with a second connection port 113, and the two connection sections 3 of the spermatic cord model are respectively and independently connected to the first connection port 112 and the second connection port 113, so as to realize the connection of the spermatic cord model into the groove 11.
Referring to fig. 7 to 8, more specifically, the first connection port 112 and the second connection port 113 are mirror images of each other such that the first connection port 112 and the second connection port 113 are identical in structure to each other; wherein the first connection port 112 includes: the accommodating groove 1121 and the connecting pipe 1122, wherein the accommodating groove 1121 is formed in the first inner wall of the groove 11, the connecting pipe 1122 is arranged in the accommodating groove 1121, and the connecting pipe 1122 contained in the first connecting port 112 is spliced with the connecting section 3 of the spermatic cord model; the other connecting section 3 of the spermatic cord model is spliced with a connecting pipe 1122 contained in the second connecting port 113; more specifically, the accommodation groove 1121 is presented as a circular groove, and the accommodation groove 1121 has a bottom end surface, and after the connecting section 3 of the spermatic cord model is connected into the accommodation groove 1121, the end of the connecting section 3 is fitted to the bottom end surface of the accommodation groove 1121.
Referring to fig. 8, 10 and 13, in order to prevent the two connecting segments 3 of the spermatic cord model from being separated from the connecting tubes 1122 in the first connecting port 112 and the second connecting port 113 during the operation, in this embodiment, blocking members are disposed in the two accommodating grooves 1121 and on the outer walls of the two connecting segments 3, wherein after the two connecting segments 3 are respectively connected with the two connecting tubes 1122, the blocking members can act on the connecting segments 3 so that the connecting segments 3 are always connected with the connecting tubes 1122, and therefore, during the simulated operation, the two connecting segments 3 of the spermatic cord model are not separated from the corresponding connecting tubes 1122 after the operation end of the spermatic cord model is pulled out from the incision inner portion, so as to avoid affecting the simulated operation; then the surgical retractor is padded between the spermatic cord model operation section 31 and the bionic skin layer 2, so that the operation section 31 cannot be reset into the groove 11.
Referring to fig. 8 to 14, in the present embodiment, a placement cavity 124 is formed in an inner wall of the accommodation groove 1121 in a direction perpendicular to an axial direction of the accommodation groove 1121, and the placement cavity 124 communicates with the accommodation groove 1121; and both barriers may comprise: stopper 12, stopper edge 121, slider 122, spring 123; wherein the stopper 12 is disposed in the accommodation groove 1121 and the placement cavity 124 and is capable of moving axially along the axis of the placement cavity 124, wherein one end of the stopper 12 located in the accommodation groove 1121 has an inclined end surface; the blocking edge 121 is arranged along the port edge of the connecting section 3, wherein the blocking edge 121 is provided with a first arc-shaped end surface 1211 and a concave portion 1212 formed on the opposite surface of the first arc-shaped end surface 1211; the sliding part 122 is slidably disposed on the outer wall of the connecting section 3, when a force is applied to the sliding part 122, the sliding part 122 can move axially along the axis of the connecting section 3, and the spring 123 is disposed in the placement cavity 124, wherein one end of the spring 123 is connected to one end of the stopper 12, and the other end of the spring 123 is connected to the inner wall of the placement cavity 124, so that the stopper 12 always approaches to the central line of the accommodating groove 1121; wherein the slider 122 has a second arcuate end surface 1221 and a third arcuate end surface 1222; the second arcuate end face 1221 is capable of fitting into the recess 1212 such that the catch 121 is in a connecting relationship with the slider 122; wherein, when the connecting section 3 is spliced with the connecting pipe 1122, the first arc end surface 1211 of the blocking edge 121 acts on the inclined end surface of the stopper 12, so that the stopper 12 is far away from the axis of the accommodating groove 1121; and compresses the spring 123, after the stop edge 121 passes the stop member 12, the spring 123 expands, and the stop member 12 is located between the stop edge 121 and the slider 122; so that the connection end cannot be separated from the connection tube 1122.
More specifically, the diameter of the connecting section 3 is smaller than the diameter of the operating section 31, so that the connection of the connecting section 3 with the operating end forms a collar, so that the slider 122 is confined between the flange 121 and the collar.
After the stopper 12 is positioned between the blocking edge 121 and the slider 122, pushing the connecting section 3 to move the slider 122 toward the stopper 12 so that the second arc-shaped end face 1221 is in tangential relation to the inclined end face of the stopper 12, wherein after the second arc-shaped end face 1221 is out of tangential relation with the stopper 12, the stopper 12 is in connecting relation with the third arc-shaped end face 1222 and compresses the spring 123; the second arcuate end face 1221 is fitted to the recess 1212 such that the connecting segment 3 moves axially within the receiving slot 1121 as the connecting segment 3 is withdrawn from the receiving slot 1121.
Referring to fig. 8 to 14, in specific use, the connecting end is inserted into the connecting tube 1122, the blocking edge 121 is attached to the inclined end surface of the stopper 12 in a tangential state during insertion, and gradually pushes the stopper 12 away from the axis of the accommodating groove 1121 through the blocking edge 121, at this time, the spring 123 is pressed by one end of the stopper 12, after the blocking edge 121 passes through the stopper 12, the spring 123 is reset, so that the stopper 12 is located between the blocking edge 121 and the slider 122, at this time, the connecting end of the spermatic cord model is blocked by the stopper, so as to prevent the stopper from falling out of the accommodating groove 1121; when the spermatic cord model needs to be replaced, the connecting section 3 is pushed again, so that the second arc-shaped end face 1221 of the sliding piece 122 is in tangential relation with the inclined end face of the stop piece 12, at this time, the stop piece 12 moves axially in the direction away from the axis of the accommodating groove 1121 again, after the second arc-shaped end face 1221 passes through the stop piece 12, the stop piece 12 is in connection with the third arc-shaped end face 1222, and the second arc-shaped end face 1221 is matched into the concave portion 1212, and when the connecting section 3 is pulled to be disconnected from the connecting pipe 1122, the stop piece 12 does not block the sliding piece 122 and the blocking edge 121, so that the spermatic cord model is replaced conveniently.
More specifically, the two connecting sections 3 have the same structure and are made of the same hard plastic; for example: polyethylene, polypropylene, polycarbonate, polystyrene, etc.
Referring to fig. 5 and fig. 14-16, in the present embodiment, the operation section 31 of the spermatic cord model is provided with water filling ports at the connection with the two connection sections 3, wherein both water filling ports are provided with a partition plate 32, more specifically, the operation section 31 of the spermatic cord model includes at least: the fascia surrounding the spermatic cord, the vas deferens, the fascia surrounding the testicle blood vessels, the testicle vein and the testicle artery; wherein, the inner diameter of the spermatic cord outer fascia 33 is the same as the maximum diameter of the water injection hole, and the spermatic duct, the spermatic duct artery, the fascia surrounding the spermatic cord blood vessel, the spermatic vein and the spermatic artery are configured in the spermatic cord outer fascia 33, and the spermatic duct, the spermatic duct artery, the fascia surrounding the spermatic cord blood vessel, the spermatic vein and the spermatic artery are all connected with the partition plate 32, and the partition plate 32 is provided with a first side and a second side, wherein, a plurality of water injection holes are formed in the direction of the first side to the second side of the partition plate 32, and the two ends of the spermatic duct, the spermatic artery, the fascia surrounding the spermatic duct artery and the spermatic cord blood vessel are correspondingly communicated with the corresponding water injection holes, so that two connecting sections 3 of the spermatic cord model are communicated, wherein, the spermatic duct, the fascia surrounding the spermatic duct artery, the spermatic cord blood vessel, the spermatic vein and the spermatic artery are configured in a structure mode in the spermatic cord outer fascia 33.
Referring to fig. 1, 7 and 10, in this embodiment, a water injection pipeline 34 is further disposed in the model body 1, wherein one end of the water injection pipeline 34 is communicated with a connecting pipe 1122, the other end of the water injection pipeline 34 is provided with a water sac 35, and after the practitioners finish suturing, the water sac 35 is pressed to enable the liquid in the water sac 35 to flow through the sutured bionic blood vessel or the artificial vas deferens for checking whether the suturing is successful.
In other embodiments (not shown), the outer walls of the two connecting pipes 1122 are provided with external threads, and the inner walls of the two connecting sections 3 are provided with internal threads, wherein the external threads and the internal threads can be engaged with each other, and when in use, the two connecting sections 3 are respectively and independently connected with the first connecting port 112 and the second connecting port 113, and the two connecting sections 3 are simultaneously rotated in one direction, so that the spermatic cord model is fixed in the groove 11, and the problem that the spermatic cord model is twisted after the rotation of one side and the other end is connected after the rotation is avoided.
The application method of the application comprises the following steps:
1. the two connecting sections of the spermatic cord model are respectively and independently inserted into the first connecting port and the second connecting port, so that the spermatic cord model cannot be separated from the groove due to traction when in use;
2. clamping the bionic skin layer into a clamping groove on the inner wall of the groove through a bulge arranged on the outer wall, and then placing the assembled model body under a surgical microscope;
3. making an operation incision on the bionic skin layer, and drawing an operation section part of the spermatic cord model by using an operation draw hook to simulate the operation incision; the drag hook is arranged between the operation section of the spermatic cord model and the bionic operation layer;
4. simulating operation by using a spermatic cord model, and after the operation is finished; squeezing the water bag or injecting liquid into the water injection pipeline by using a syringe; to verify the suturing operation.
5. And taking down the used bionic skin layer and the spermatic cord model, and cleaning the model body.
The above description of embodiments is only for the understanding of the present application. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present application without departing from the principles of the application, and such modifications will fall within the scope of the claims.
Claims (10)
1. The utility model provides a spermatic cord and vas deferens microsurgery simulation teaching aid which characterized in that, it includes:
a spermatic cord model; having two connection sections opposite to each other and an operation section connecting the two connection sections;
the model body is used for simulating a part of human body, a groove is formed in the position, corresponding to the groin of the human body, of the model body, and the spermatic cord model is installed in the groove through two opposite connecting sections;
a simulated skin layer; the bionic skin layer is arranged in the groove, so that the spermatic cord model in the groove is covered; after the bionic skin layer is cut, the operation section of the spermatic cord model can be partially pulled out of the groove to perform simulated operation.
2. The spermatic cord and vas deferens microsurgery simulation teaching aid according to claim 1, wherein the bionic skin layer is detachably arranged in the groove; the bionic skin layer is provided with a top end face, and after the bionic skin layer is arranged in the groove, the top end face of the bionic skin layer and the outer wall of the model body are in smooth transition.
3. The spermatic cord and vas deferens microsurgery simulation teaching aid according to claim 2, wherein the inner wall of the groove is provided with a groove, the groove is distant from the bottom surface of the groove, the outer wall of the bionic skin layer is provided with a bulge, and the bulge is clamped into the clamping groove, so that the bionic skin layer and the groove form a connection relationship.
4. The seminal cord and vas deferens microsurgery simulation teaching aid of claim 1, wherein a connection port is provided on two inner walls of the groove, wherein the connection port comprises: the first connecting port and the second connecting port are arranged in a mirror image mode; the two connecting sections of the spermatic cord model are respectively and independently connected to a first connecting port and a second connecting port.
5. The simulation teaching aid for the microsurgery of spermatic cord and vas deferens according to claim 4,
the first connection port includes:
the accommodating groove is formed in the inner wall of the groove;
and the connecting pipe is arranged in the accommodating groove, wherein the connecting section of the spermatic cord model is spliced with the connecting pipe.
6. The simulation teaching aid for the microscopic operation of spermatic cord and vas deferens according to claim 5, wherein a blocking member is arranged in the accommodating groove and on the outer wall of the connecting section, wherein after the connecting section is connected with the connecting pipe, the blocking member can act on the connecting section, so that the connecting section is always connected with the connecting pipe.
7. The simulation teaching aid for the microsurgery of spermatic cord and vas deferens according to claim 6, wherein,
the barrier includes:
a placing cavity is formed in the inner wall of the accommodating groove along the direction perpendicular to the axial direction of the accommodating groove, and the placing cavity is communicated with the accommodating groove;
a stopper disposed in the accommodation groove and the placement chamber and movable in an axial direction along an axis of the placement chamber, wherein one end of the stopper located in the accommodation groove has an inclined end surface;
the blocking edge is arranged along the edge of the port of the connecting section and is provided with a first arc-shaped end face and a concave part formed on the opposite side of the first arc-shaped end face;
the sliding piece is arranged on the outer wall of the connecting section in a sliding mode, and can move along the axial direction of the axis of the connecting section when a force is applied to the sliding piece, wherein the sliding piece is provided with a second arc-shaped end face and a third arc-shaped end face; the second arc-shaped end surface can be matched into the concave part, so that the blocking edge and the sliding piece form a connection relation;
the spring is arranged in the placing cavity, one end of the spring is connected to one end of the stop piece, and the other end of the spring is connected to the inner wall of the placing cavity, so that the stop piece always approaches to the central line of the accommodating groove;
when the connecting section is inserted into the connecting pipe, the first arc-shaped end face of the blocking edge acts on the inclined end face of the stop piece, so that the stop piece is far away from the axis of the accommodating groove; and compressing said spring, said spring expanding after said flange passes said stop member such that said stop member is positioned between said flange and said slider; so that the connection end cannot be separated from the connection pipe.
8. The seminal cord and vas deferens microsurgery simulation teaching aid of claim 7, wherein the diameter of the connecting section is smaller than the diameter of the operating section, such that a retainer ring is formed at the connection of the connecting section and the operating end, such that the slider is confined between the retaining rim and the retainer ring.
9. The cord and vas deferens microsurgery simulation teaching aid of claim 7, wherein after the stop is positioned between the stop edge and the slide, pushing the connecting section moves the slide in the direction of the stop such that the second arcuate end surface is in tangential relationship with the angled end surface of the stop and compresses the spring, wherein after the second arcuate end surface is out of tangential relationship with the stop, the stop is in connecting relationship with the third arcuate end surface, the second arcuate end surface engages the recess such that the connecting section moves axially within the receiving slot as the connecting section is withdrawn from the receiving slot.
10. The seminal cord and vas deferens microsurgery simulation teaching aid of claim 1, wherein the two connecting segments are structurally identical to each other.
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