CN209895642U - Human body model for renal biopsy teaching and operation training - Google Patents
Human body model for renal biopsy teaching and operation training Download PDFInfo
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Abstract
The utility model provides a human model for kidney puncture biopsy art teaching and operation training, human model includes: the human body module (1) is provided with two grooves (11) in a back kidney projection area; two detachable kidney puncture biopsy modules (2) are respectively arranged in the groove (11) and used for teaching and operation training of kidney puncture biopsy. The detachable renal biopsy module (2) specifically comprises: a module upper layer (21) for simulating a plurality of layers of tissues from the waist skin to the front of the kidney, wherein the module upper layer (21) comprises a simulated skin layer (211), a simulated subcutaneous tissue layer (212) and a simulated muscle layer (213), and acoustic impedances and densities of the simulated skin layer (211), the simulated subcutaneous tissue layer (212) and the simulated muscle layer (213) are different from each other; a modular lower layer (22) for simulating the kidney and surrounding adipose tissue. The puncture operation is closer to the real clinical puncture operation, and the puncture operation level of medical staff can be improved rapidly.
Description
Technical Field
The utility model relates to a medical teaching utensil especially relates to kidney puncture biopsy art teaching operation training model, concretely relates to human body model for kidney puncture biopsy art teaching and operation training.
Background
The chronic kidney disease is one of the common chronic diseases in China, and large-scale epidemiological research shows that the incidence rate of the chronic kidney disease in China is 10%, if the chronic kidney disease cannot be found and diagnosed in time, the chronic kidney disease develops into uremia, the health of people is seriously affected, the medical cost is huge, and the countries and families bear heavy burden. Therefore, early diagnosis of the disease and timely treatment are important measures for preventing further development and deterioration of the chronic kidney disease.
The kidney biopsy is the only method for pathological diagnosis of kidney diseases and is also the gold standard for diagnosing kidney diseases, and is called as kidney biopsy, which is to use a puncture needle to puncture the kidney tissue of a living body, take out a small amount of kidney tissue and perform pathological analysis. The importance of renal biopsy is the following: 1) a definitive diagnosis, thus establishing a suitable treatment regimen; 2) and (3) judging prognosis: the change condition of the glomerulus can be visually found through renal biopsy examination, and the prognosis is prompted; 3) the clinical diagnosis after kidney biopsy is corrected, the correction rate reaches 34-63%, and the correction rate of a treatment scheme reaches 19-36%. Therefore, it is very necessary to perform a renal biopsy for a patient with renal disease.
The key of kidney pathology examination and diagnosis is to obtain high-quality kidney pathology specimens through kidney biopsy, in recent years, along with the development of scientific technology, the updating of imaging equipment and the improvement of operation skills are improved, the percutaneous kidney biopsy technology under ultrasonic guidance is widely developed, the success rate of material taking is obviously improved, however, as the kidney biopsy is a traumatic examination, various complications can occur, the common complications are bleeding, including hematuria and perirenal hematoma, lumbago, arteriovenous flaccidity, renal rupture, abdominal pain, accidental infection, accidental injury to other organs and the like. The incidence rate of perirenal hematoma after renal puncture reaches 60-90 percent, the incidence rate of larger hematoma is 0.5-1.5 percent, and the larger hematoma is mainly caused by renal laceration or puncture to large and medium blood vessels, particularly arteries; operational errors may damage other organs such as the liver, spleen, colon, ileum, duodenum, pancreas, gallbladder, adrenal gland, ureter, mesenteric artery, pleural cavity, etc., and severe cases require surgery to treat the damage. These complications are often caused by unskilled operation of the surgeon, lack of knowledge of the ultrasound imaging characteristics of the local tissue, improper selection of the puncture site, or too deep insertion. Reducing these complications requires the operating doctor to master a skilled and accurate puncture technique to precisely puncture the appropriate part of the kidney, thereby improving the kidney puncture technique itself, requiring the operator to repeatedly perform simulation training, simulating a real operation process, and repeatedly practicing on the anthropomorphic prosthetic tissue, so as to gradually improve the puncture quality and accuracy of the operator in the clinical work, obtain sufficient kidney tissue, and simultaneously reduce the pain of the patient and the occurrence of serious complications.
For example, chinese utility model patent discloses a kidney biopsy puncture model (grant publication No. CN203204914U) for simulating kidney puncture, which includes: the body structure model is manufactured according to a human body structure, and a skin model, a subcutaneous tissue model, a muscle tissue model, an adipose tissue model and a kidney tissue model are sequentially arranged on the thoracic part of the body structure model from outside to inside; the kidney tissue model is sequentially provided with a puncture danger area and a puncture safety area which are not marked by colors from inside to outside, and the skin model of the body structure model is a silica gel material layer; the subcutaneous tissue model is a foam plastic layer; the muscle tissue model is a silica gel material layer; the adipose tissue model is a soft plastic layer.
However, the subcutaneous tissue model is a foam plastic layer, the adipose tissue model is a soft plastic layer, the difference distance between the texture and the hardness is large compared with the real human tissue, and the difference between the echo of ultrasonic display and the real situation is large. In addition, the kidney of the human body moves up and down along with the breathing process under the real condition, and the patient needs to breathe in and hold breath in the kidney puncture biopsy process to move the kidney down to complete the operation in cooperation with an operating doctor. The kidney tissue model in the kidney biopsy puncture model is fixed in the adipose tissue model, cannot move and cannot completely simulate a real operation process.
The lack of an effective and realistic training model for operating the renal biopsy technique in the prior art limits the wide application of the technique in domestic hospitals. Therefore, a need exists for a renal biopsy teaching and training model that simulates real operations and rapidly improves the quality and accuracy of the puncture in the clinical work of the operator.
SUMMERY OF THE UTILITY MODEL
In view of this, the to-be-solved technical problem of the utility model is to provide a human model for kidney biopsy technique teaching and operation training, solved and lacked effective lifelike kidney biopsy technique operation training model at present, restriction kidney biopsy technique in the problem of domestic hospital wide application.
In order to solve the technical problem, an embodiment of the present invention provides a human body model for renal biopsy and operation training, including: the back kidney projection area of the human body module is provided with two grooves; two detachable kidney puncture biopsy modules are respectively arranged in the groove and used for teaching and operation training of kidney puncture biopsy. Wherein, the removable renal biopsy module specifically includes: the module upper layer is used for simulating a plurality of layers of tissues from the waist skin to the front of the kidney, wherein the module upper layer comprises a simulated skin layer, a simulated subcutaneous tissue layer and a simulated muscle layer, and the simulated skin layer, the simulated subcutaneous tissue layer and the simulated muscle layer are different in acoustic impedance and density; the lower layer of the module is used for simulating the kidney and the surrounding adipose tissues.
Further, the module lower layer includes: the simulated fat bag is provided with a zipper seal, and loose silica gel particles are filled in the simulated fat bag; a simulated kidney placed in the silica gel particles within the simulated fat pouch; the air bag sets up the upside of simulation fat bag for influence to the kidney when simulation patient breathes, the air bag has the air cock.
Further, the simulating a kidney specifically includes: an ellipsoidal kernel, used to mimic renal medulla; the outer layer of kidney, cladding in on the ellipsoid inner core for simulate the renal cortex, wherein, the ellipsoid inner core with the outer layer of kidney's colour is different.
Furthermore, the ellipsoidal core and the kidney outer layer are both made of silica gel; the density of the ellipsoidal core is 1.01g/cm3The acoustic impedance of the ellipsoidal core is 1.46g/cm2S; the density of the outer layer of the kidney is 1.04g/cm3(ii) a The acoustic impedance of the outer layer of the kidney is 1.6g/cm2·s。
Further, the air bag is adhered to the upper side of the simulated fat bag through a magic tape.
Furthermore, the material of the air bag is latex.
Further, the density of the silica gel particles is 0.95g/cm3The acoustic impedance of the silica gel particles is 1.3g/cm2·s。
Furthermore, the simulated skin layer, the simulated subcutaneous tissue layer and the simulated muscle layer are all made of silica gel; the density of the simulated skin layer is 1.1g/cm3The acoustic impedance of the simulated skin layer is 1.8g/cm2S; the density of the simulated subcutaneous tissue layer is 1.01g/cm3The acoustic impedance of the simulated subcutaneous tissue layer is 1.59g/cm2S; the simulated muscle layer has a density of 1.07g/cm3The acoustic impedance of the simulated muscle layer is 1.64g/cm2·s。
Further, the silica gel is made of two-component addition type room temperature vulcanized liquid silicone rubber.
Further, the thickness of the simulated skin layer is 1 cm; the thickness of the simulated subcutaneous tissue layer is 2 cm; the simulated muscle layer had a thickness of 2 cm.
According to the above-mentioned embodiment of the present invention, the human body model for renal biopsy and operation training has at least the following beneficial effects: simulating the real state of the kidney moving up and down along with respiration in the body under the normal condition by using the air bag; various simulated tissues are manufactured by adopting liquid silica gel tissues with different densities and acoustic impedances, so that the echo of ultrasonic examination is close to the multi-level imaging characteristics of a real human body and is closer to clinical operation; the simulated kidney consists of silica gel components with different colors, and the silica gel components with different colors represent different component tissues of the kidney, so that the method is favorable for inspecting the material-taking quality of puncture and is favorable for quickly improving the puncture level of training personnel; meanwhile, the simulation kidney can be independently disassembled and replaced after being damaged due to repeated puncture, a human body model does not need to be replaced, and the cost for replacing the model caused by repeated puncture of the simulation kidney is reduced; the human body model has low cost, simple manufacture and convenient operation, is suitable for teaching and operation training of the renal biopsy, is beneficial to quickly improving the puncture operation level of medical staff, and promotes the renal biopsy to be widely applied in domestic hospitals.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification of the invention, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a first human body model for teaching and operation training of renal biopsy according to an embodiment of the present invention.
Fig. 2 is a sectional view of a detachable renal biopsy module according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a lower layer of a module according to an embodiment of the present invention.
Fig. 4 is a schematic view of a state that the kidney is simulated to move downward after being pressed after the airbag is inflated according to the embodiment of the present invention.
Fig. 5 is a cross-sectional view of a simulated kidney according to an embodiment of the present invention.
Description of reference numerals:
1 human body module 2 Detachable kidney puncture biopsy module
11 groove 21 module upper layer
211 simulated skin layer 212 simulated subcutaneous tissue layer
213 simulated muscle layer 22 Module lower layer
221 simulated fat bag 2211 zipper closure
2212 silica gel granule 222 simulates kidney
2221 ellipsoidal core 2222 renal outer layer
223 airbag 2231 air tap
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the spirit of the present invention will be described in detail with reference to the accompanying drawings, and any person skilled in the art can change or modify the techniques taught by the present invention without departing from the spirit and scope of the present invention after understanding the embodiments of the present invention.
The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.
As used herein, the terms "first," "second," …, etc. do not denote any order or sequential importance, nor are they used to limit the invention, but rather are used to distinguish one element from another or from another element or operation described in the same technical language.
With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
References to "plurality" herein include "two" and "more than two"; reference to "multiple sets" herein includes "two sets" and "more than two sets".
As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.
Fig. 1 is a schematic structural diagram of a first embodiment of a human body model for teaching and operation training of kidney biopsy provided by an embodiment of the present invention, and fig. 2 is a cross-sectional view of a detachable kidney biopsy module provided by an embodiment of the present invention, as shown in fig. 1 and fig. 2, the human body model mainly comprises a human body module and two detachable kidney biopsy modules, grooves are made in the kidney projection areas at the back positions on both sides of the human body module, and the two detachable kidney biopsy modules are respectively arranged in the two grooves; the detachable kidney puncture biopsy module specifically comprises a module upper layer and a module lower layer, the module upper layer comprises a simulated skin layer, a simulated subcutaneous tissue layer and a simulated muscle layer, and acoustic impedances and densities of the simulated skin layer, the simulated subcutaneous tissue layer and the simulated muscle layer are different from each other, so that echoes of ultrasonic examination are close to multi-level imaging characteristics of a real human body.
In the embodiment shown in the figure, the manikin for teaching and operation training of renal biopsy comprises a manikin module 1 and two detachable renal biopsy modules 2. Wherein, the back kidney projection area of the human body module 1 is provided with two grooves 11; two detachable kidney puncture biopsy modules 2 are respectively arranged in the groove 11, the detachable kidney puncture biopsy modules 2 can be installed in the groove 11 and also can be detached from the groove 11, and the detachable kidney puncture biopsy modules 2 are used for teaching and operation training of kidney puncture biopsy. Wherein the detachable renal biopsy module 2 comprises in particular a module upper layer 21 and a module lower layer 22. The module upper layer 21 is used for simulating a plurality of layers of tissues from the waist skin to the front of the kidney, wherein the module upper layer 21 comprises a simulated skin layer 211, a simulated subcutaneous tissue layer 212 and a simulated muscle layer 213, and acoustic impedances and densities of the simulated skin layer 211, the simulated subcutaneous tissue layer 212 and the simulated muscle layer 213 are different from each other; the module lower layer 22 is used to simulate the kidney and surrounding adipose tissue. Preferably, the body module 1 is in a prone position, and the two grooves 11 are arranged in a back kidney projection area of the body module 1.
In the preferred embodiment of the utility model, the human body module 1 is 110 cm high and made of common rubber, thus saving the cost; the groove 11 is 14 cm long, 14 cm wide and 10 cm deep; the simulated skin layer 211, the simulated subcutaneous tissue layer 212 and the simulated muscle layer 213 are all made of silica gel, the silica gel is processed by liquid silica gel with soft touch, and the used material is two-component addition type room temperature vulcanized liquid silica gel (vinyl-containing polysiloxane is used as a base polymer, and Si-H bond-containing polysiloxane is used as a cross-linking agent, and is cross-linked and vulcanized at room temperature in the presence of a platinum catalyst), for example, the hardness of the simulated skin layer 211 is 5% after being prepared; the simulated skin layer 211 has a density of 1.1g/cm3The acoustic impedance of the simulated skin layer 211 is 1.8g/cm2S, simulated skin layer 211 is 14 cm long, 14 cm wide, and 1cm thick; the simulated subcutaneous tissue layer 212 has a density of 1.01g/cm3The acoustic impedance of the simulated subcutaneous tissue layer 212 is 1.59g/cm2S, simulating a subcutaneous tissue layer 212 of 14 cm long, 14 cm wide, 2cm thick; the simulated muscle layer 213 has a density of 1.07g/cm3The acoustic impedance of the simulated muscle layer 213 is 1.64g/cm2S, simulated muscle layer 213 is 14 cm long, 14 cm wide, and 2cm thick. Simulating the skin layer 211 using ultrasound, ultrasound promoting hyperechoic, simulating the subcutaneous tissue layer 212 using ultrasound, ultrasound promoting hypoechoic, using ultrasoundThe examination simulates echoes of the muscle layer 213, ultrasound cues, etc.
Referring to fig. 1 and 2, the detachable kidney biopsy module 2 can be detached from the groove 11 of the human body module 1, because only the detachable kidney biopsy module 2 is damaged in the teaching and operation training of the kidney biopsy technique, and only the detachable kidney biopsy module 2 needs to be replaced after the detachable kidney biopsy module 2 is damaged without replacing the human body module 1, thereby saving raw materials and cost; the acoustic impedances and densities of the simulated skin layer 211, the simulated subcutaneous tissue layer 212 and the simulated muscle layer 213 are different, so that the echo of the ultrasonic examination is close to the multi-level imaging characteristics of a real human body, and is more close to clinical actual combat operation.
FIG. 3 is a cross-sectional view of a lower layer of a module according to an embodiment of the present invention; fig. 4 is a schematic diagram of a state that a simulated kidney moves downward after being pressed after an air bag is inflated according to an embodiment of the present invention, as shown in fig. 3 and 4, a lower layer of a module mainly comprises a simulated fat bag, a simulated kidney and an air bag, loose silica gel particles are filled in the simulated fat bag, a zipper seal is arranged on a side surface of the simulated fat bag, the silica gel particles can be filled in through the zipper seal, and the simulated kidney is placed in the zipper seal; the air bag is arranged close to the simulated fat bag.
In the embodiment shown in this figure, the module lower layer 22 includes a simulated fat pocket 221, a simulated kidney 222, and a gas pocket 223. Wherein, the simulated fat bag 221 is provided with a zipper seal 2211, the simulated fat bag is filled with loose silica gel particles 2212, the silica gel particles 2212 are processed by liquid silica gel with soft touch, and the used material is two-component addition type room temperature vulcanized liquid silicone rubber (vinyl-containing poly siloxane is used as a basic polymer, Si-H bond-containing poly siloxane is used as a cross-linking agent, and the cross-linking vulcanization is carried out at room temperature in the presence of a platinum catalyst); simulated kidney 222 is placed in silicone granule 2212 within the simulated fat pocket 221; the air bag 223 is arranged on the upper side of the simulated fat bag 221 (namely the air bag 223 is designed on the upper side (close to the head side) of the simulated kidney 222, the simulated kidney 222 moves downwards when being inflated, and the real situation is met), and the air bag 223 is used for simulating the breathing of a patientThe air bag 223 has an air nozzle 2231, and the air bag 223 can be inflated through the air nozzle 2231 to simulate the up and down movement of the kidney 222. In the preferred embodiment of the present invention, the air bag 223 is adhered to the upper side of the simulated fat bag 221 by a hook and loop fastener, specifically, the air bag 223 is disposed on the upper side of the simulated fat bag 221, and when the air bag 223 is inflated, the simulated kidney 222 moves up and down, so as to conform to the clinical real renal puncture; the material of the air bag 223 is latex, rubber and the like; the density of the silica gel particles 2212 is 0.95g/cm3The acoustic impedance of the silica gel particles 2212 is 1.3g/cm2S, silica gel particles 2212 were examined using ultrasound, which suggests a weak echo. The simulated fat bag 221 is made of plastic, the air bag 223 is made of latex, rubber and the like, the simulated fat bag 221 is cuboid, and the simulated fat bag 221 is 14 cm long, 11 cm wide and 5 cm high; the simulated kidney 222 is in an ellipsoid shape (similar to an egg shape), is made of a silica gel material, and is 10 cm long, 5 cm wide and 4 cm high; the air bag 223 is similar to a balloon, after the air bag 223 is inflated, the length is 14 cm, the width is 4 cm, and the height is 5 cm under the natural state, after the air bag 223 is inflated, the silica gel particles 2212 in the simulated fat bag 221 are pressed, and then the simulated kidney 222 is pressed, and the simulated kidney 222 moves up and down.
Referring to fig. 3 and 4, an assistant performs ultrasonic auxiliary guidance, an operator (i.e., a trainer or a teacher) holds a puncture gun, under the ultrasonic guidance, after the operator passes a renal biopsy needle through the module upper layer 21, another assistant inflates an air bag 223, the air bag 223 is arranged on the upper side of the simulated fat bag 221, the air bag 223 inflates, the air bag 223 extrudes the simulated kidney 222 in the simulated fat bag 221, the simulated kidney 222 moves downwards (moves towards the direction away from the head), as shown in fig. 4, the kidney movement of a patient during respiration is simulated, when the lower pole of the simulated kidney 222 moves to a puncture needle position, the inflation is stopped, the simulated kidney 222 is made to be static, the operator takes materials for puncture, the real state that the internal kidney moves up and down along with the respiration during renal biopsy is simulated by using the air bag 223, and the rapid improvement of the puncture technology of the operator is.
Fig. 5 is a cross-sectional view of a simulated kidney provided by the embodiment of the present invention, as shown in fig. 5, the simulated kidney specifically includes an ellipsoidal core and an ellipsoidal outer layer, the ellipsoidal core is coated on the ellipsoidal core, the renal cortex is simulated on the kidney outer layer, and the ellipsoidal core is simulated on the renal medulla.
In the embodiment shown in this figure, the simulated kidney 222 specifically includes an ellipsoidal inner core 2221 and an outer layer 2222 of the kidney. Wherein the ellipsoidal kernel 2221 is used to mimic renal medulla; an outer kidney layer 2222 covers the inner ellipsoid core 2221, and the outer kidney layer 2222 is used for simulating the renal cortex, wherein the inner ellipsoid core 2221 and the outer kidney layer 2222 have different colors. The outer layer 2222 of the kidney has a length of 10 cm, a width of 5 cm and a height of 4 cm; the ellipsoidal core 2221 is 8 cm long, 3 cm wide and 2cm high.
In a preferred embodiment of the present invention, the ellipsoidal inner core 2221 and the kidney outer layer 2222 are made of silica gel; the density of the ellipsoid kernel 2221 is 1.01g/cm3The acoustic impedance of the ellipsoidal core 2221 is 1.46g/cm2S; the density of the outer layer 2222 of the kidney is 1.04g/cm3(ii) a The acoustic impedance of the outer layer 2222 of the kidney is 1.6g/cm2S. Examining the ellipsoidal kernel 2221 using ultrasound, which prompts hyperechoic sound; the outer layers of the kidney 2222 are examined using ultrasound, ultrasound cues, etc. For example, the ellipsoidal inner core 2221 may be dyed yellow, the kidney outer layer 2222 may be dyed red, the punctured kidney tissue obtained after the material is taken is examined, the red color represents the renal cortex, the yellow color represents the renal medulla, if the punctured kidney tissue has a yellow portion, it represents that the renal medulla is punctured, the bleeding risk is high, it represents that the puncturing technique is not too close, and the clinical practice is close, or the simulated kidney 222 may be taken out after the puncturing, the puncture needle eye position is observed, whether the puncturing position is proper or not is determined, and the rapid promotion using the training personnel practice technique is facilitated.
The foregoing is only an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention should fall within the protection scope of the present invention.
Claims (10)
1. A mannequin for kidney biopsy teaching and operation training, the mannequin comprising:
the human body module (1) is provided with two grooves (11) in a back kidney projection area; and
two detachable kidney puncture biopsy modules (2) are respectively arranged in the groove (11) and are used for teaching and operation training of kidney puncture biopsy,
wherein, the detachable renal biopsy module (2) specifically comprises:
a module upper layer (21) for simulating a plurality of layers of tissues from the waist skin to the front of the kidney, wherein the module upper layer (21) comprises a simulated skin layer (211), a simulated subcutaneous tissue layer (212) and a simulated muscle layer (213), and acoustic impedances and densities of the simulated skin layer (211), the simulated subcutaneous tissue layer (212) and the simulated muscle layer (213) are different from each other; and
a modular lower layer (22) for simulating the kidney and surrounding adipose tissue.
2. The mannequin of claim 1, wherein the module lower layer (22) comprises:
a simulated fat pouch (221) having a zipper seal (2211), the simulated fat pouch filled with loose silicone particles (2212);
a simulated kidney (222) placed in a silica gel particle (2212) within the simulated fat pocket (221); and
and the air bag (223) is arranged on the upper side of the simulated fat bag (221) and used for simulating the influence on the kidney when a patient breathes, and the air bag (223) is provided with an air nozzle (2231).
3. Manikin for renal biopsy teaching and procedure training according to claim 2, wherein the simulated kidney (222) comprises in particular:
an ellipsoidal core (2221) for mimicking renal medullary; and
and the kidney outer layer (2222) is coated on the ellipsoid inner core (2221) and used for simulating the renal cortex, wherein the ellipsoid inner core (2221) and the kidney outer layer (2222) are different in color.
4. The mannequin of claim 3, wherein the ellipsoidal core (2221) and the kidney outer layer (2222) are made of silica gel; the density of the ellipsoid kernel (2221) is 1.01g/cm3The acoustic impedance of the ellipsoidal core (2221) is 1.46g/cm2S; the density of the outer layer of the kidney (2222) is 1.04g/cm3(ii) a The outer layer of the kidney (2222) has an acoustic impedance of 1.6g/cm2·s。
5. Manikin for kidney biopsy teaching and operation training according to claim 2, wherein the gas bag (223) is attached to the upper side of the simulated fat bag (221) by velcro.
6. The manikin for teaching and operational training of renal biopsy, according to claim 2, wherein the material of the air bag (223) is latex.
7. Manikin for teaching and operational training of renal biopsy, according to claim 2, wherein the silica gel particles (2212) have a density of 0.95g/cm3The acoustic impedance of the silica gel particles (2212) is 1.3g/cm2·s。
8. The mannequin of claim 1, wherein the simulated skin layer (211), the simulated subcutaneous tissue layer (212) and the simulated muscle layer (213) are all made of silicon gel; the simulated skin layer (211) has a density of 1.1g/cm3The acoustic impedance of the simulated skin layer (211) is 1.8g/cm2S; the density of the simulated subcutaneous tissue layer (212) is 1.01g/cm3The simulated subcutaneous tissue layer (212) has an acoustic impedance of 1.59g/cm2S; the simulated muscle layer (213) has a density of 1.07g/cm3The acoustic impedance of the simulated muscle layer (213) is 1.64g/cm2·s。
9. The mannequin of any one of claims 2 to 8, wherein the silica gel is a two-component addition type room temperature vulcanized liquid silicone rubber.
10. Manikin for teaching and operational training of renal biopsy, according to claim 1, characterized in that the thickness of the simulated skin layer (211) is 1 cm; the simulated subcutaneous tissue layer (212) has a thickness of 2 cm; the simulated muscle layer (213) has a thickness of 2 cm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977830A (en) * | 2021-10-22 | 2022-01-28 | 天津天堰科技股份有限公司 | Puncture training model |
| WO2023093219A1 (en) * | 2021-11-29 | 2023-06-01 | 北京博医时代医疗科技有限公司 | Percutaneous nephrolithotripsy training model and preparation method therefor |
-
2019
- 2019-03-26 CN CN201920394625.9U patent/CN209895642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977830A (en) * | 2021-10-22 | 2022-01-28 | 天津天堰科技股份有限公司 | Puncture training model |
| WO2023093219A1 (en) * | 2021-11-29 | 2023-06-01 | 北京博医时代医疗科技有限公司 | Percutaneous nephrolithotripsy training model and preparation method therefor |
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