CN111223374A - Demonstration device for minimally invasive surgery model of Maimengtong - Google Patents
Demonstration device for minimally invasive surgery model of Maimengtong Download PDFInfo
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- CN111223374A CN111223374A CN202010172671.1A CN202010172671A CN111223374A CN 111223374 A CN111223374 A CN 111223374A CN 202010172671 A CN202010172671 A CN 202010172671A CN 111223374 A CN111223374 A CN 111223374A
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Abstract
The invention provides a demonstration device for a Murmentone minimally invasive surgery model, which comprises a rectangular base, wherein a model body is arranged in the center of the base, and a first supporting rod and a second supporting rod are respectively arranged at opposite included angles of the base; the cavity opening mechanism is characterized in that a first cantilever which can move along the axial direction of the first supporting rod and can stretch out and draw back is arranged on the first supporting rod, a charging box used for containing liquid silica gel and a cavity opening mechanism used for opening an accommodating cavity in the model body are sequentially and fixedly arranged in the direction away from the first supporting rod, and the charging box is connected with the cavity opening mechanism through a guide pipe. The invention solves the problem that the prior medical education industry lacks a teaching aid for minimally invasive surgery of the Macamatsu communication, so that a mentor is unable to guide a intern to practice and operate.
Description
Technical Field
The invention belongs to the field of medical teaching aids, and particularly relates to a demonstration device for a minimally invasive surgery model of Maimengtong.
Background
The minimally invasive surgery of the Maimengtong is a minimally invasive biopsy and treatment technique of mammary gland appearing in recent years, the apparatus enters the mammary gland through the puncture of a small percutaneous incision under the guidance of ultrasound or X-ray, and the suspicious focus is cut repeatedly by a high-speed rotary cutter, so that a sufficient amount of specimens can be obtained, and the early diagnosis rate of the breast cancer is improved; meanwhile, the instrument can completely excise benign tumors with small volume, and has the characteristics of minimal invasion, accuracy, high efficiency, safety, beauty and the like.
However, in the medical education industry, no relevant teaching aid is provided for instructor teaching and practice of the student for the Maimetom surgery, so that the student can only learn theoretical knowledge and cannot practice the operation; for trainees, usually a teacher conducts example operation under the field guidance, so that the operation effect cannot be guaranteed, and medical accidents are easy to happen. Therefore, a minimally invasive surgical model of the Mimo-tomimetomutong is urgently needed for the teaching of the instructor and the practice and study of the intern.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a demonstration device for a Maimeitong minimally invasive surgery model, which solves the problems that a mentor lacks a teaching aid and can not carry out practical operation on students or interns in a school because the existing medical education industry does not have a related Maimeitong minimally invasive surgery teaching aid.
The technical scheme adopted by the invention for solving the technical problems is as follows: a demonstration device for a Murmentone minimally invasive surgery model comprises a rectangular base, wherein a model body is arranged in the center of the base, and a first supporting rod and a second supporting rod are respectively arranged at opposite included angles of the base;
the first support rod is provided with a first cantilever which can move along the axial direction of the first support rod and can stretch, a charging box for placing liquid silica gel and a cavity opening mechanism for opening an accommodating cavity in the model body are sequentially and fixedly arranged on the first cantilever in the direction far away from the first support rod, and the charging box is connected with the cavity opening mechanism through a guide pipe;
a second cantilever capable of moving along the axial direction of the second support rod is arranged on the second support rod, a plurality of telescopic rods which can move along the length direction of the second cantilever and are vertically arranged are arranged below the second cantilever, and a light source is arranged at one end, far away from the second cantilever, of each telescopic rod; the model body is made of transparent silica gel.
Preferably, the cavity opening mechanism comprises a fixed pipe fixedly connected with the first cantilever, a telescopic pipe capable of moving along the length direction of the fixed pipe is arranged in the fixed pipe, a limiting plate is arranged on the inner side of the upper end of the telescopic pipe, the lower end of the telescopic pipe is connected with two cavity opening plates which are symmetrical to each other and can be oppositely unfolded, and a rectangular hole is formed in the center of the limiting plate; the cavity opening mechanism also comprises a push-pull rod penetrating through the telescopic pipe and the fixed pipe, the upper end of the push-pull rod is connected with the push-pull plate, and the lower end of the push-pull rod is connected with the two cavity opening plates through connecting rods respectively; the push-pull rod is provided with an adjusting block capable of penetrating through the rectangular hole, the push-pull rod is connected with the connecting rod shaft, and the lower end of the cavity opening plate is provided with a plurality of arc-shaped notches.
Preferably, the limiting plate is provided with a limiting column for limiting the adjusting block to rotate on the limiting plate.
Preferably, the telescopic rod is provided with an annular lamp.
Preferably, the first support bar length is greater than the second support bar length.
Preferably, the telescopic pipe is connected with the cavity opening plate through a rotating shaft.
Preferably, the telescopic pipe is provided with scale marks.
Preferably, a valve is arranged on the conduit.
Preferably, the model body is a hemisphere, and the diameter of the model body is 15-20 CM.
Preferably, a skin layer is arranged outside the model body.
The invention has the beneficial effects that:
1. this product maimetom leads to minimal access surgery model presentation device, but the tutor of being convenient for practises the teaching demonstration and show in the teaching, still can supply student or intern to study theoretical knowledge and actual operation exercise simultaneously, accumulates the operation experience for later operation, avoids the medical accident to take place. In addition, this product simple structure can use repeatedly, and it is more economical with higher costs.
2. Adopt the model body of transparent silica gel material, can observe the inside state of model body when actual operation, the plasticity of model body is promoted in the settlement of silica gel material, can directly cut at the teaching in-process, observes its inside condition to what weak point has after the visual judgement is experimental.
3. The cavity opening mechanism is arranged, so that accommodating cavities with different sizes can be formed in any position of the model body, liquid silica gel (used for representing pathological change tissues) with different colors can be conveniently accommodated, tests can be performed on different pathological change tissues (liquid silica gel), the test experience of students or interns is effectively increased, and a foundation is laid for later actual operation; after the experiment, the light source or the annular lamp on the telescopic rod is used for irradiating the inside of the containing chamber and observing the experiment effect.
4. Open chamber board lower extreme and set up the arc breach, treat two and open chamber board closed back liquid silica gel and can follow the arc breach and flow (open the chamber board at this moment and do not take out from the arc breach), avoid directly to holding the cavity and pour into liquid silica gel into, and then make model body and liquid silica gel mutual contamination, influence experiment effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a demonstration device of a meimentong minimally invasive surgery model in the embodiment;
fig. 2 is a schematic structural diagram of a demonstrating device of the meimentong minimally invasive surgery model when the model body is a cross section in the embodiment;
FIG. 3 is a schematic structural view of the cavity opening mechanism in the present embodiment;
FIG. 4 is a schematic structural view of the expansion tube of the cavity opening mechanism after moving in the present embodiment;
FIG. 5 is a schematic structural view of the cavity opening plate in the cavity opening mechanism according to the present embodiment when the cavity opening plate is unfolded;
FIG. 6 is a schematic view of the connection structure of the connecting rod, the push-pull plate and the adjusting block in the present embodiment;
FIG. 7 is a schematic view of an upper end structure of the extension tube of the present embodiment;
FIG. 8 is a schematic view showing the connection structure of the cavity-opening plate and the push-pull rod in the present embodiment;
FIG. 9 is a schematic structural view of the cavity plate of this embodiment when it is deployed;
FIG. 10 is a schematic view of the connection structure between the connecting rod and the lower end of the push-pull rod and the fixing plate in this embodiment;
fig. 11 is a schematic view of the connection structure between the connecting rod and the lower end of the push-pull rod and the fixing plate when the push-pull rod is a cross section in the embodiment.
Description of the drawings:
11, base 12: first support rod 13: the first suspension arm 14: cavity opening mechanism
15: the charging box 16: the model body 17: the second support bar 18: second cantilever
19: the telescopic rod 20: catheter tube
21: the housing chamber 22: ring lamp
31: push-pull rod 32: push-pull plate 33: fixing the tube 34: telescopic tube
35: cavity opening plate 36: connecting rod 37: regulating block
71: the limiting plate 72: limiting column
91: shaft 92: arc notch
101: fixing plate 102: first pin shaft 103: second pin shaft
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, the practical directional terms such as "upper, lower, left, right" generally refer to upper, lower, left, right as shown in the drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.
Referring to fig. 1 to 9, a demonstration apparatus for a meimengtong minimally invasive surgery model comprises a rectangular base 11, wherein a model body 16 is arranged at the center of the base 11, a groove with the same size as the bottom surface of the model body 16 is arranged on the base 11 so as to replace different model bodies 16, a first support rod 12 and a second support rod 17 are respectively arranged at opposite included angles of the base 11, and the first support rod 12 and the second support rod 17 can rotate by taking the first support rod 12 and the second support rod 17 as rotating shafts;
referring to fig. 1, a first cantilever 13 capable of moving and stretching along the axial direction of the first support rod 12 is arranged on the first support rod 12, a charging box 15 for placing liquid silica gel and an opening mechanism 14 for arranging an accommodating chamber 21 in a model body 16 are sequentially and fixedly arranged on the first cantilever 13 in a direction away from the first support rod 12, one or more liquid silica gels with different colors can be contained in the charging box 15, the color of the liquid silica gel is different from that of the model body 16, the liquid silica gel is used for representing pathological change tissues, and the observation of an experimenter or a student during an experiment is facilitated; the first cantilever 13 (which may be in the form of an electric telescopic rod or the like) can move on the first support rod 12 along the axis thereof, and is used for adjusting the horizontal or vertical position of the cavity opening mechanism 14, so as to select the position of the accommodating cavity 21 to be opened in the model body 16;
the bottom end of the charging box 15 is connected with the upper end of the cavity opening mechanism 14 through a conduit 20, the cavity opening mechanism 14 is in a hollow tubular shape, in this embodiment, the conduit 20 is used for conveying the liquid silica gel in the charging box 15 into the accommodating chamber 21 through the cavity opening mechanism 14, and in addition, a valve (not shown) is arranged on the conduit 20;
a second cantilever 18 capable of moving along the axial direction of the second support rod 17 is arranged on the second support rod 17, a plurality of telescopic rods 19 capable of moving along the length direction of the second cantilever 18 and vertically arranged are arranged below the second cantilever 18, in the embodiment, a guide rail is arranged below the second cantilever 18, so that the telescopic rods 19 can slide along the length direction of the second cantilever 18, a light source is arranged at one end, away from the second cantilever 18, of each telescopic rod 19, and an annular lamp 22 is arranged on each telescopic rod 19; the telescopic rods 19 can extend into the accommodating chambers 21 and are illuminated by the light source or the annular lamp 22 for observing the test results, and whether the test results have defects or not can be observed at the same time by arranging the plurality of telescopic rods 19; model body 16 is the transparent silica gel material, and the selection of transparent silica gel material is convenient for observe the 16 internal aspects of model body, adopts the silica gel material, improves 16 plasticity of model body, still can cut the analysis (see fig. 2) of model body 16 after experimental, and the instructor is convenient for the student to observe when the teaching, and 16 repeatedly usable of model body practice thrift the cost.
Further, as shown in fig. 3 to 9, the cavity opening mechanism 14 includes a fixed tube 33 fixedly connected to the first cantilever 13 to ensure stability of the cavity opening mechanism 14, a telescopic tube 34 capable of moving along a length direction of the fixed tube 33 is disposed in the fixed tube 33, a position limiting plate 71 is disposed on an inner side of an upper end of the telescopic tube 34, a lower end of the telescopic tube is connected to two cavity opening plates 35 which are symmetrical to each other and can be relatively unfolded, a rectangular hole is disposed in a center of the position limiting plate 71, as shown in fig. 3, when the two cavity opening plates 35 are closed, the lower end of the telescopic tube is pointed to pierce the model body 16 and enter the interior thereof, and when the cavity opening plates 35 are relatively unfolded, an accommodating chamber 21 is formed in the interior of the model body; the cavity opening mechanism 14 further comprises a push-pull rod 31, the push-pull rod 31 penetrates through the telescopic pipe 34 and the fixed pipe 33, the upper end of the push-pull rod 31 extends out of the fixed pipe 33 and is connected with a push-pull plate 32, and the lower end of the push-pull rod 31 is connected with two cavity opening plates 35 through connecting rods 36 respectively; an adjusting block 37 capable of penetrating through the rectangular hole is arranged on the push-pull rod 31, and the push-pull rod 31 is connected with the connecting rod 36 through a universal joint or a pin shaft; the cavity opening mechanism 14 enters the model body 16, specifically (see fig. 4), the push-pull rod 31 can rotate, the push-pull rod 31 is rotated to adjust the direction of the adjusting block 37, the adjusting block 31 is positioned above the limiting plate 71 and does not pass through the rectangular hole, the push-pull plate 32 is pushed, the adjusting block 37 on the push-pull rod 31 applies thrust to the limiting plate 71, the telescopic pipe 34 moves downwards along the axial direction of the fixed pipe 33, the closed cavity opening plate 35 enters the interior of the model body 16, and the push-pull rod 31 does not apply thrust to the connecting rod 36 at the moment, so that the two cavity opening plates 35 are not unfolded relatively;
opening the accommodating chamber, specifically (see fig. 5 and 7), when the cavity opening plate 35 reaches the desired position, rotating the push-pull plate 32 to drive the adjusting block 37 to rotate together, driving the adjusting block 37 to pass through the rectangular hole, and then continuing to push the push-pull plate 32; referring to fig. 10 and 11, the connecting rod 36, the push-pull rod 31 and the cavity opening plate 35 are specifically connected, a U-shaped opening is formed in the lower end of the push-pull rod 31, the upper ends of the two connecting rods 36 are both arranged in the U-shaped opening, and a second pin shaft 103 horizontally penetrating through the U-shaped opening and the two connecting rods 36 is further arranged on the push-pull rod 31; the cavity opening plate 35 is provided with two fixing plates 101, a gap is formed between the two fixing plates 101, the lower end of the connecting rod 36 is located in the gap between the two fixing plates 101, and the fixing plates 101 and the connecting rod 36 are connected by a first pin 102 (in this embodiment, the connecting rod 36 is connected with the push-pull rod 31 and the cavity opening plate 35 in a non-limiting manner); when the push-pull rod 31 applies a downward pushing force to the connecting rod 36, the second pin shaft 103 is used as a rotating shaft to drive the two connecting rods 36 to move relatively outwards, and the connecting rod 36 drives the two cavity plates 35 to expand relatively under the pushing action (see fig. 9, the shaft 91 of the telescopic tube 34 connected with the cavity plate 35 is used as a rotating shaft, and the cavity plate 35 swings around the shaft 91, see fig. 10, the connecting rod 36 swings around the first pin shaft 102) to form the accommodating cavity 21 in the mold body 16 (the distance of the push-pull rod 31 moving downwards is controlled, and the angle of the cavity plate 35 expanding relatively is further controlled to regulate the size of the accommodating cavity 21), as shown in fig. 1, 3, 4 and 5, one end of the guide tube 20 is connected with the side surface of the bottom end of the charging box 15, the other end is connected with a hole (not shown) on the outer peripheral side of the upper end of the fixed tube 33, and, the liquid silica gel in the charging box 15 flows into the fixed pipe 33 through the guide pipe 20, then flows into the telescopic pipe 34 in the fixed pipe 33, and finally flows into the containing chamber 21 as a lesion tissue, wherein a water sealing ring is arranged between the fixed pipe 33 and the push-pull rod 31 to prevent the liquid silica gel from overflowing, and a water sealing ring is arranged between the fixed pipe 33 and the telescopic pipe 34 to prevent the liquid silica gel flowing through the fixed pipe 33 and the telescopic pipe 34 from flowing out, so that the liquid silica gel and the model body 16 are polluted mutually; in addition, the telescopic tube 34 is provided with scale marks, which is convenient for accurately measuring the depth of the cavity opening plate 35 entering the model body 16, and is used for setting different experimental environments (corresponding to different operation environments, namely the position of pathological change tissues); in this embodiment, the lower end of the cavity opening plate 35 is provided with a plurality of arc-shaped notches 92, which is convenient for the liquid silica gel in the cavity opening mechanism 14 to flow out after the cavity opening plate 35 is closed; specifically, after the liquid silica gel is filled in the accommodating chamber 21, the push-pull plate 32 is pulled, the push-pull rod 31 drives the connecting rod 36 to move, so as to drive the two cavity opening plates 35 to be closed, the liquid silica gel flows out of the arc-shaped notch 92 in the closing process, the liquid silica gel in the accommodating chamber 21 is ensured to be always in a full state, and when the closed cavity opening plates 35 are drawn out of the accommodating chamber 21, the valve on the conduit 20 is closed, so that the liquid silica gel in the accommodating chamber 21 is prevented from being too much or overflowing; arc breach 92's setting is opening the automatic outflow from arc breach 92 of cavity plate wall closed in-process liquid silica gel, avoids directly injecting liquid silica gel to holding cavity 21, causes model body 16 and liquid silica gel to pollute each other (directly to holding cavity 21 and injecting liquid silica gel, the impact force is great), influences the experiment effect.
Further, as shown in fig. 7, the limiting plate 71 is provided with a limiting post 72 for limiting the rotation of the adjusting block 37 on the limiting plate 71, the limiting post 72 of the present invention is located at the edge of the rectangular hole, when the adjusting block 37 is attached to the limiting post 72, only two situations exist that the long side of the adjusting block 37 is perpendicular to or parallel to the long side of the rectangular hole, which is convenient for the adjusting block 37 to be placed on the limiting plate 71 or to pass through the rectangular hole.
Furthermore, the model body 16 is a hemisphere, the diameter of the hemisphere is 15-20CM, and a skin layer is arranged outside the model body 16, so that the model body 16 is more vivid and approaches to a breast during an operation, and trainees or students can experience a more real operation environment conveniently.
Further, the length of the first support rod 12 is greater than that of the second support rod 17, so that the first cantilever 13 and the second cantilever 18 are prevented from colliding when the first support rod 12 or the second support rod 17 is rotated.
Further, referring to fig. 9, the telescopic tube 34 is connected to the cavity-opening plate 35 through a shaft 91, and the two shafts 91 are parallel to each other, so that the two cavity-opening plates 35 can be opened and closed relatively.
In practice, referring to fig. 1 and 2, the first support rod 12 is rotated to position the cavity opening mechanism 14 above the model body 16, the push-pull plate 32 is rotated to vertically intersect the adjusting block 37 with the rectangular hole, and the adjusting block 37 is positioned above the limit plate 71; as shown in fig. 3, the push-pull plate 32 is pushed, and the adjusting block 37 on the push-pull rod 31 applies a pushing force to the limit plate 71, so that the telescopic pipe 34 moves downwards along the axial direction of the fixed pipe 33, and the open cavity plate 35 in a closed state enters the interior of the model body 16; referring to fig. 5 and 7, when the open cavity plate 35 in the closed state reaches a desired position (referring to the scale line on the extension tube 34 to reach a desired depth), the push-pull plate 32 is rotated to enable the adjusting block 37 to penetrate through the rectangular hole and then to continue to push the push-pull plate 32, under the thrust action of the push-pull rod 31, the open cavity plate 35 is pushed by the connecting rod 36 to be relatively unfolded, so that the accommodating cavity 21 is formed in the model body 16, since the open cavity mechanism 14 is communicated with the charging box 15 containing liquid silica gel through the conduit 20, when the open cavity plate 35 is relatively unfolded and the valve is opened, the liquid silica gel flows into the accommodating cavity 21 (a water sealing ring is arranged between the fixed tube 33 and the extension tube 34 to prevent the liquid silica gel from leaking); pulling the push-pull plate 32, driving the connecting rod 36 by the push-pull rod 31 to close the two cavity-opening plates 35, and finally drawing the telescopic pipe 34 and the cavity-opening plates 35 out of the model body under the driving of the adjusting block 37; then carry out the test of the maimer and lead to the minimal access surgery, after experimenting, rotate second bracing piece 17, make telescopic link 19 be located and hold cavity 21 top, stretch telescopic link 19 and move second cantilever 18 downwards afterwards, make telescopic link 19 get into and hold cavity 21 in (telescopic link 19 gets into and holds cavity 21 through the hole that the mechanism 14 of opening left), open light source or annular lamp 22 afterwards and observe the test result, look over the operation weak point.
In a word, the plastic transparent silica gel is used as the model body 16, can be externally observed and can also be cut for display teaching, and can be repeatedly used, so that the cost is saved; the lower end light source of the telescopic rod 19 is used for observing the internal condition of the accommodating chamber 21, and the annular lamp 22 can be used for observing the side wall of the accommodating chamber 21; in addition, the arrangement of the cavity opening mechanism 14 can be used for opening the accommodating cavity 21 at any position in the model body 16 to replace a focus, so that an experimenter can test the focus (the accommodating cavity 21) at different positions, and the operation of the Mimmerton operation process and the operation of an instrument can be mastered more skillfully.
The above embodiments are only preferred embodiments of the present invention, and it should be understood that the above embodiments are only for assisting understanding of the method and the core idea of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a maimetom leads to minimal access surgery model presentation device which characterized in that: the device comprises a rectangular base, wherein a model body is arranged in the center of the base, and a first supporting rod and a second supporting rod are respectively arranged at opposite included angles of the base;
the first support rod is provided with a first cantilever which can move along the axial direction of the first support rod and can stretch, a charging box for placing liquid silica gel and a cavity opening mechanism for opening an accommodating cavity in the model body are sequentially and fixedly arranged on the first cantilever in the direction far away from the first support rod, and the charging box is connected with the cavity opening mechanism through a guide pipe;
a second cantilever capable of moving along the axial direction of the second support rod is arranged on the second support rod, a plurality of telescopic rods which can move along the length direction of the second cantilever and are vertically arranged are arranged below the second cantilever, and a light source is arranged at one end, far away from the second cantilever, of each telescopic rod; the model body is made of transparent silica gel.
2. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: the cavity opening mechanism comprises a fixed pipe fixedly connected with the first cantilever, a telescopic pipe capable of moving along the length direction of the fixed pipe is arranged in the fixed pipe, a limiting plate is arranged on the inner side of the upper end of the telescopic pipe, the lower end of the telescopic pipe is connected with two cavity opening plates which are symmetrical to each other and can be oppositely unfolded, and a rectangular hole is formed in the center of the limiting plate; the cavity opening mechanism also comprises a push-pull rod penetrating through the telescopic pipe and the fixed pipe, the upper end of the push-pull rod is connected with the push-pull plate, and the lower end of the push-pull rod is connected with the two cavity opening plates through connecting rods respectively; the push-pull rod is provided with an adjusting block capable of penetrating through the rectangular hole, the push-pull rod is connected with the connecting rod shaft, and the lower end of the cavity opening plate is provided with a plurality of arc-shaped notches.
3. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 2, characterized in that: and the limiting plate is provided with a limiting column for limiting the adjusting block to rotate on the limiting plate.
4. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: and the telescopic rod is provided with an annular lamp.
5. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: the first support bar length is greater than the second support bar length.
6. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: the telescopic pipe is connected with the cavity opening plate through a rotating shaft.
7. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: and the telescopic pipe is provided with scale marks.
8. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: the guide pipe is provided with a valve.
9. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: the model body is a hemisphere, and the diameter is 15-20 CM.
10. The demonstration device for a minimally invasive surgery model of a Matimer according to claim 1, characterized in that: and a skin layer is arranged outside the model body.
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| CN202010172671.1A CN111223374B (en) | 2020-03-12 | 2020-03-12 | Demonstration device for minimally invasive surgery model of Maimengtong |
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