Simulation biliary and pancreatic duct structure for ERCP operation simulation
By designing a simulated bile and pancreatic duct structure and using elastic materials and a specific shell structure, the problem that existing models cannot simulate the displacement and dilation of the bile and pancreatic ducts was solved, thus improving the effectiveness and safety of ERCP surgery training.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HONEST MEDICAL CHINA CO LTD
- Filing Date
- 2023-11-09
- Publication Date
- 2026-07-21
Smart Images
Figure CN117496809B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a human body simulation structure for surgical simulation, and more particularly to a simulated bile and pancreatic duct structure for ERCP surgical simulation. Background Technology
[0002] Endoscopic retrograde cholangiopancreatography (ERCP) is an important method for the direct diagnosis and treatment of biliary and pancreatic diseases.
[0003] Compared to other endoscopic procedures, ERCP is technically more difficult and carries higher risks, requiring extensive training. Therefore, Chinese Patent Publication No. CN201465396U provides a training model for human retrograde cholangiopancreatography (ERCP), consisting of a human shell and an upper digestive tract. The human shell is in a prone position and comprises a head, neck, and torso. The head is tilted to the right, and the back and abdomen of the torso are open, separated into a thoracic cavity and an abdominal cavity by the diaphragm. The upper digestive tract consists of the oral cavity, pharynx, esophagus, stomach, duodenum, bile duct, pancreatic duct, and liver. The descending segment of the duodenum has papillary openings, and a trachea is located next to the esophagus. A camera connected to a computer is mounted on the upper back of the human shell, mounted on a fixture.
[0004] The aforementioned CN201465396U patent has a simple structure and is easy to use. It can not only be used for training operations at any time and simulate various basic techniques, but also effectively reduce complications. Trainees do not need to be exposed to harmful X-rays, thus reducing harm to the body.
[0005] However, in actual ERCP surgery, the bile duct and pancreatic duct often shift due to different patient positions. When placing medical devices such as drainage tubes, stents, and balloons, the bile duct and pancreatic duct may also expand due to pressure from the medical devices. The aforementioned patent case CN201465396U cannot provide a training scenario for the displacement and dilation of the bile duct and pancreatic duct. Summary of the Invention
[0006] Therefore, the purpose of this invention is to provide a simulated bile and pancreatic duct structure for ERCP surgery simulation, in order to overcome the shortcomings of the prior art.
[0007] This invention provides a simulated bile and pancreatic duct structure for ERCP surgery, comprising: a bile and pancreatic duct prosthesis having a hollow bile and pancreatic duct, one end of which is provided with a bile and pancreatic duct orifice, the bile and pancreatic duct being made of an elastic material; and a shell attached to the bile and pancreatic duct prosthesis, the shell having a channel and an opening communicating with the channel, the channel correspondingly accommodating the bile and pancreatic duct, the bile and pancreatic duct orifice corresponding to the opening, and the inner wall diameter of the channel being 0.5 to 2.5 mm larger than the outer wall diameter of the bile and pancreatic duct.
[0008] Furthermore, the outer casing includes a first housing and a second housing, at least one of which has the channel, the first housing has a first connecting portion, and the second housing has a second connecting portion; the first housing and the second housing are joined together via the first connecting portion and the second connecting portion, so that the bile duct prosthesis is located between the first housing and the second housing.
[0009] Furthermore, the bile-pancreatic duct includes a common bile duct and / or a pancreatic duct, and the bile-pancreatic duct orifice correspondingly includes a common bile duct orifice located at one end of the common bile duct and / or a pancreatic duct orifice located at one end of the pancreatic duct.
[0010] Furthermore, the bile duct and pancreatic duct include a common bile duct, and a cystic duct and / or a common hepatic duct connect to the common bile duct.
[0011] Furthermore, the bile duct prosthesis includes a skirt, which is disposed at one end of the bile duct and adjacent to the opening of the bile duct. The outer shell has a receiving space communicating with the channel and adjacent to the opening. When the outer shell is attached to the bile duct prosthesis, the skirt is located in the receiving space.
[0012] The Shore hardness of the bile duct is between 70 and 85, and the Shore hardness of the lining is between 10 and 25.
[0013] The outer shell is made of polyethylene terephthalate or polyvinyl chloride.
[0014] Based on the above technical features, the following effects can be preferably achieved:
[0015] 1. Because the inner diameter of the channel is 0.5 to 2.5 mm larger than the outer diameter of the bile and pancreatic ducts, and the bile and pancreatic ducts are made of elastic materials, the displacement and expansion of the bile and pancreatic ducts can be realistically simulated, effectively assisting in ERCP training.
[0016] 2. Further increase the skirt lining to simulate the muscle tissue around the openings of the bile and pancreatic ducts, further assisting in training the control of medical devices. Attached Figure Description
[0017] Figure 1 This is a three-dimensional assembly diagram of an embodiment of the present invention.
[0018] Figure 2 This is a three-dimensional composite view of another embodiment of the present invention.
[0019] Figure 3 This is an exploded perspective view of an embodiment of the present invention.
[0020] Figure 4 This is a plan view of an embodiment of the present invention.
[0021] Figure 5 This is a schematic diagram of an embodiment of the present invention. Figure 1 This indicates that a medical device has been inserted into the bile and pancreatic ducts.
[0022] Figure 6 This is a schematic diagram of an embodiment of the present invention. Figure 2 This indicates that the medical device is causing the bile and pancreatic ducts to shift.
[0023] Figure 7 This is a schematic diagram of an embodiment of the present invention. Figure 3 This indicates that the medical device is used to dilate the bile and pancreatic ducts.
[0024] Explanation of reference numerals in the attached drawings: 1-Bile and pancreatic duct prosthesis; 11-Bile and pancreatic duct; 111-Common bile duct; 112-Pancreatic duct; 113-Bile cystic duct; 114-Common hepatic duct; 12-Bile and pancreatic duct orifice; 121-Common bile duct orifice; 122-Pancreatic duct orifice; 13-Skirt; 2-First housing; 21-Channel; 22-First joint; 3-Second housing; 31-Opening; 32-Second joint; A, B-Medical devices. Detailed Implementation
[0025] Based on the above technical features, the main functions of the simulated bile and pancreatic duct structure for ERCP surgery simulation of the present invention will be clearly demonstrated in the following embodiments.
[0026] Please see Figures 1 to 3 The present invention discloses a simulated bile and pancreatic duct structure for ERCP surgical simulation, comprising:
[0027] A bile duct prosthesis 1 has a hollow bile duct 11, and a bile duct orifice 12 is provided at one end of the bile duct 11.
[0028] In a preferred embodiment of the present invention, the bile-pancreatic duct 11 includes a common bile duct 111 and a pancreatic duct 112, and a gallbladder duct 113 and a common hepatic duct 114 communicate with the common bile duct 111. The bile-pancreatic duct orifice 12 correspondingly includes a common bile duct orifice 121 disposed at one end of the common bile duct 111 and a pancreatic duct orifice 122 disposed at one end of the pancreatic duct 112.
[0029] The thickness of the common bile duct 111, the pancreatic duct 112, the cystic duct 113, and the common hepatic duct 114, as well as the angles of their connection, can be configured according to the actual human body condition, so that doctors and medical students can better hone their ERCP skills.
[0030] The bile duct prosthesis 1 also includes a skirt 13, which is disposed at one end of the bile duct 11 and adjacent to the bile duct orifice 12, preferably surrounding the bile duct orifice 12.
[0031] The bile duct 11 is made of an elastic material, such as silicone, such that the Shore hardness of the bile duct 11 is between 70 and 85, and the Shore hardness of the lining 13 is between 10 and 25.
[0032] An outer shell is attached to the bile duct and pancreatic duct prosthesis 1. The outer shell is made of polyethylene terephthalate (PET) or polyvinyl chloride (PVC), and in practice, it can be made of completely transparent, semi-transparent, or opaque materials as needed.
[0033] In a preferred embodiment of the present invention, the outer casing includes a first housing 2 and a second housing 3. The first housing 2 has a channel 21, and the second housing 3 has an opening 31 communicating with the channel 21. The first housing 2 also has a first connecting portion 22, and the second housing 3 has a second connecting portion 32. The first housing 2 and the second housing 3 are connected to each other via the first connecting portion 22 and the second connecting portion 32. The outer casing has an accommodating space (not shown) communicating with the channel 21 and adjacent to the opening 31.
[0034] Please see Figure 3 and Figure 4 When the first housing 2 and the second housing 3 are combined, the bile duct prosthesis 1 is located between the first housing 2 and the second housing 3. The channel 21 is used to accommodate the bile duct 11. The bile duct orifice 12 corresponds to the opening 31. The skirt 13 is located in the accommodating space. The inner wall diameter of the channel 21 is 0.5 to 2.5 mm larger than the outer wall diameter of the bile duct 11.
[0035] It should be noted that, due to the low hardness of the skirt lining 13, only the skirt lining 13 can deform to fit the first housing 2 and the second housing 3. At this time, the accommodating space is the space between the first housing 2 and the second housing 3, so as to ensure that the skirt lining 13 can achieve a good fixation and fit. The drawings of this invention are only for illustration.
[0036] In actual implementation, the accommodating space can also be a fixed structure recessed into the first housing 2 and / or the second housing 3, or the accommodating space can be formed by replacing a small portion of the side of the first housing 2 and / or the second housing 3 away from the channel 21 with a deformable material to correspond to the deformation of the skirt 13.
[0037] Please see Figure 3 , Figure 5 and Figure 6 After the bile duct and pancreatic duct prosthesis 1 is attached between the first housing 2 and the second housing 3, ERCP practice can begin.
[0038] For example, the simulated bile and pancreatic duct structure for ERCP surgery can be directly photographed externally using a monitor and a regular camera, or an X-ray-like imaging device can be used to integrate the simulated bile and pancreatic duct structure for ERCP surgery into the X-ray-like imaging device, such as the aforementioned patent case CN201465396U or Chinese Patent Publication No. CN116564151A, etc., using X-ray-like imaging technology.
[0039] Next, a medical device A, such as a stone retrieval basket, guide wire, etc., is inserted into the bile duct 11 through the opening 31 and the opening 12 of the bile duct.
[0040] Since the first housing 2 and the second housing 3 are both tightly fitted to the skirt 13, there are unlikely to be any gaps around the opening 31 that would allow the medical device A to be accidentally inserted. At the same time, the skirt 13 effectively simulates the muscle tissue around the opening 12 of the bile duct and pancreatic duct, assisting doctors and medical students in training their control over the medical device A and preventing the medical device A from damaging the muscle tissue.
[0041] During the process of the physician or medical student controlling the medical device A to be inserted into the bile duct 11, the medical device A may not be able to stay in the center of the bile duct 11. If the medical device A shifts to the side, it may cause the bile duct 11 to shift.
[0042] At this point, physicians and medical students can be trained on how to continue operating medical device A in the case of displacement of the bile duct 11, so as to avoid the puncture risk of medical device A.
[0043] Please see Figure 7 However, using a larger medical device B may cause dilation of the bile duct 11.
[0044] At this point, physicians and medical students can be trained on how to continue operating the medical device B in the case of dilation of the bile duct 11, in order to avoid puncture and other risks of injury from the medical device B.
[0045] Please see Figure 6 and Figure 7 Since the inner diameter of the channel 21 is 0.5 to 2.5 mm larger than the outer diameter of the bile duct 11, and the bile duct 11 is made of the elastic material, it can realistically simulate the displacement and expansion of the bile duct 11, effectively assisting physicians and medical students in ERCP training when using different medical devices A and B.
[0046] Based on the above description of the embodiments, one can fully understand the operation, use, and effects of the present invention. However, the above embodiments are only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Simple equivalent changes and modifications made in accordance with the claims and description of the present invention are all within the scope of the present invention.
Claims
1. A simulated bile and pancreatic duct structure for ERCP surgical simulation, characterized in that, Include: A bile duct prosthesis has a hollow bile duct, one end of which is provided with a bile duct orifice, and the bile duct is made of an elastic material. as well as An outer shell is attached to the bile and pancreatic duct prosthesis. The outer shell has a channel and an opening communicating with the channel. The channel corresponds to and accommodates the bile and pancreatic duct. The opening of the bile and pancreatic duct corresponds to the opening. The inner wall diameter of the channel is 0.5 to 2.5 mm larger than the outer wall diameter of the bile and pancreatic duct. The bile duct prosthesis includes a skirt disposed at one end of the bile duct and adjacent to the opening of the bile duct, and the outer shell has an accommodating space communicating with the channel and adjacent to the opening; when the outer shell is attached to the bile duct prosthesis, the skirt is located in the accommodating space. The bile duct and pancreatic duct include a common bile duct and / or a pancreatic duct, and the bile duct orifice corresponding to a common bile duct orifice located at one end of the common bile duct and / or a pancreatic duct orifice located at one end of the pancreatic duct. The bile duct and pancreatic duct include a common bile duct and a cystic duct and / or a common hepatic duct that connect to the common bile duct; The outer casing includes a first housing and a second housing, at least one of which has the channel. The first housing has a first connecting portion and the second housing has a second connecting portion. The first housing and the second housing are joined together via the first connecting portion and the second connecting portion, so that the bile duct prosthesis is located between the first housing and the second housing.
2. The simulated bile and pancreatic duct structure for ERCP surgical simulation as described in claim 1, characterized in that, The bile duct and pancreatic duct include a common bile duct and / or a pancreatic duct, and the bile duct orifice corresponding to a common bile duct orifice located at one end of the common bile duct and / or a pancreatic duct orifice located at one end of the pancreatic duct.
3. The simulated bile and pancreatic duct structure for ERCP surgical simulation as described in claim 1, characterized in that, The bile duct and pancreatic duct include a common bile duct and a cystic duct and / or a common hepatic duct that connect to the common bile duct.
4. The simulated bile and pancreatic duct structure for ERCP surgical simulation as described in claim 1, characterized in that, The Shore hardness of the bile duct is between 70 and 85, and the Shore hardness of the skirt is between 10 and 25.
5. The simulated bile and pancreatic duct structure for ERCP surgical simulation as described in claim 1, characterized in that, The outer shell is made of polyethylene terephthalate or polyvinyl chloride.