High-simulation individualized liver intervention model

Abstract

The utility model discloses a high-simulation individualized liver intervention model. The high-simulation individualized liver intervention model comprises a model body, a puncture needle and a computer system, a liver model and a tumor model are arranged on the model body, a first simulation pipeline for simulating an intrahepatic bile duct and a plurality of second simulation pipelines for simulating intrahepatic blood vessels are arranged in the liver model, the first simulation pipeline is connected with a first water bag through a first external pipeline, and the first external pipeline is connected with a first water pump; the second simulation pipeline is connected with a second water bag through a second external pipeline, the second water bag is connected with a second water pump, and the color of liquid carried in the first water bag is different from that of liquid carried in the second water bag; a first sensing element is arranged in the tumor model, and second sensing elements are arranged on the surface of the first simulation pipeline and the surface of the second simulation pipeline. The device can simulate structures such as intrahepatic tumors, intrahepatic bile ducts, intrahepatic blood vessels and the like, can simulate puncture targets with different puncture difficulties, and can pre-warn puncture risks and record the puncture success rate.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical teaching technical field especially relates to a high simulation individualization liver intervention model. BACKGROUND

[0002] At present, interventional ultrasound training is mainly carried out through two ways: (1) clinical operation practice; (2) in-vitro puncture model. The in-vitro puncture model is made of different shapes of ultrasound displayable materials and integrated into one, which is provided for training personnel to practice. They often add pigments to different targets to obtain target color model specimens after puncture to determine whether puncture is successful. However, the existing in-vitro puncture model has simple design, only imitates the shape of organs, does not provide puncture mechanics and other feedback, which is not conducive to the training practice of training personnel; moreover, it cannot be used repeatedly, has no design of difficulty level targets, and cannot simulate the influence of important structures such as liver blood vessels and bile ducts on puncture, and cannot accurately simulate the real puncture situation in clinic. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims to provide a high simulation individualization liver intervention model, which can simulate puncture targets with different puncture difficulties by simulating structures such as intrahepatic tumors, intrahepatic bile ducts and intrahepatic blood vessels; at the same time, it can give early warning of puncture risk and record puncture success rate, which is more conducive to the training practice of training personnel.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0005] A high simulation individualization liver intervention model comprises

[0006] A model body, which is formed by 3D printing of self-healing hydrogel, is provided with a liver model and a tumor model on the model body, and the material density of the liver model is different from that of the tumor model; the liver model is provided with a first simulation pipeline for simulating intrahepatic bile ducts and a plurality of second simulation pipelines for simulating intrahepatic blood vessels, the first simulation pipeline is connected with a first water bag through a first external pipeline, the first external pipeline is connected with a first water pump, the second simulation pipelines are connected with a second water bag through a second external pipeline, the second water bag is connected with a second water pump, and the liquid color carried in the first water bag is different from that carried in the second water bag; the tumor model is provided with a first sensing element, and the surfaces of the first simulation pipeline and the second simulation pipeline are both provided with a second sensing element;

[0007] A puncture needle, the tip of the puncture needle is provided with a contact sensing head, and the end of the puncture needle is provided with a transducer electrically connected with the contact sensing head;

[0008] A computer system is electrically connected with the transducer, the first inductive element and the second inductive element through wires respectively;

[0009] When the contact inductive head is in contact with the first inductive element or the second inductive element, an electric loop is formed between the computer system, the transducer and the first inductive element or the second inductive element.

[0010] As a preferred scheme of the utility model, the first water bag is equipped with a first water outlet valve; the second water bag is equipped with a second water outlet valve.

[0011] As a preferred scheme of the utility model, the puncture needle is a hollow structure and is formed with a liquid passage; the puncture needle is equipped with a liquid outlet at the end; the puncture needle is equipped with a liquid inlet at the tip.

[0012] As a preferred scheme of the utility model, the liquid outlet is connected with a liquid discharge pipe.

[0013] As a preferred scheme of the utility model, the puncture needle is equipped with a wire passage; the wire passage and the liquid passage are independent of each other; the connecting wire between the transducer and the contact inductive head is arranged in the wire passage.

[0014] As a preferred scheme of the utility model, the first inductive element is equipped with a plurality of elements and is uniformly distributed in the tumor model.

[0015] As a preferred scheme of the utility model, the second inductive element is equipped with a plurality of elements and is uniformly distributed on the surface of the first simulation pipeline and the second simulation pipeline.

[0016] As a preferred scheme of the utility model, the contact inductive head is a conductor.

[0017] The high-simulation individualized liver intervention model provided by the utility model has the beneficial effects compared with the prior art:

[0018] (1) the model body is placed in a model simulating human skeleton, skin and subcutaneous tissue, which maximally simulates the real puncture scene; the model body is 3D printed by a healable material, can simulate the hand feeling of human body puncture, has high simulation degree, and can be repeatedly used.

[0019] (2) The liver model and the tumor model are arranged on the model body, the first simulation pipeline for simulating intrahepatic bile duct and the second simulation pipeline for simulating multiple intrahepatic blood vessels are arranged in the liver model, the first simulation pipeline is connected with the first water bag through the first external pipeline, the first water pump is connected to the first external pipeline, the second simulation pipeline is connected with the second water bag through the second external pipeline, the second water pump is connected to the second water bag, the first water pump and the second water pump are in a continuous perfusion state, so that the distribution of different intrahepatic tumors, the bile flow of intrahepatic bile duct and the blood flow of intrahepatic blood vessels can be simulated, and then the puncture target with different puncture difficulties can be simulated, the full coverage of puncture difficulty is ensured, and the authenticity of the model is improved.

[0020] (3) When the contact sensing head of the puncture needle contacts the first sensing element arranged in the tumor model, an electric circuit is formed between the computer system, the transducer and the first sensing element, the sensing light of the first sensing element is lit, the puncture success is prompted, at the same time, the electric signal can be recorded by the computer system to calculate the corresponding puncture times and the puncture success times, so that the puncture success rate can be calculated and recorded; when the contact sensing head of the puncture needle contacts the second sensing element arranged on the surface of the first simulation pipeline and the surface of the second simulation pipeline, an electric circuit is formed between the computer system, the transducer and the second sensing element, the second sensing element gives an alarm, the puncture to the dangerous position is prompted, at the same time, the electric signal can be recorded by the computer system to calculate the corresponding puncture times, so that the puncture risk can be prewarned. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0022] Fig. 1 It is the structural schematic diagram of model body;

[0023] Fig. 2 It is the structural schematic diagram when the puncture needle is punctured in the tumor model;

[0024] Fig. 3 It is the structural schematic diagram when the simulation pipeline is connected with the water bag through the external pipeline;

[0025] Fig. 4 It is the structural schematic diagram of puncture needle.

[0026] Markings in the figure:

[0027] 100, model body; 101, liver model; 102, tumor model; 103, first simulation pipeline; 104, second simulation pipeline; 105, first external pipeline; 106, first water bag; 107, first water pump; 108, second external pipeline; 109, second water bag; 110, second water pump; 111, first sensing element; 112, second sensing element; 113, first water outlet valve; 114, second water outlet valve; 200, puncture needle; 201, contact sensing head; 202, transducer; 203, liquid channel; 204, liquid inlet; 205, liquid outlet; 206, liquid discharge pipe; 207, wire channel; 208, wire; 300, computer system. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application. It should be understood that the terms "first", "second" and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the "first" information can also be referred to as "second" information, and similarly, the "second" information can also be referred to as "first" information.

[0030] Please refer to Figs. 1 to 4The utility model discloses a high simulation individualized liver intervention model provided by preferred embodiment, its including model body 100, model body 100 is by self -healing hydrogel 3D printing forming, be equipped with liver model 101 and tumor model 102 on model body 100, the material density of liver model 101 is different with the material density of tumor model 102, be equipped with first simulation pipeline 103 for simulating intrahepatic bile duct and second simulation pipeline 104 of multiple simulation intrahepatic blood vessels in liver model 101, first simulation pipeline 103 is connected with first water sac 106 through first external pipeline 105, first external pipeline 105 is connected with first water pump 107, second simulation pipeline 104 is connected with second water sac 109 through second external pipeline 108, second water sac 109 is connected with second water pump 110, the liquid color that carries in first water sac 106 is different with the liquid color that carries in second water sac 109, be equipped with first sensing element 111 in tumor model 102, the surface of first simulation pipeline 103 and the surface of second simulation pipeline 104 all are equipped with second sensing element 112, puncture needle 200, the tip of puncture needle 200 is equipped with contact sensing head 201, the end of puncture needle 200 is equipped with transducer 202 with the electric connection of contact sensing head 201, computer system 300, computer system 300 is connected with transducer 202, first sensing element 111 and second sensing element 112 respectively through wire 208.

[0031] When contact sensing head 201 contacts first sensing element 111 or second sensing element 112, computer system 300, transducer 202 and first sensing element 111 or second sensing element 112 form an electric circuit.

[0032] It should be noted that, in the present embodiment, the contact sensing head 201 is a conductor; the first sensing element 111 is provided with a plurality of and is distributed in the tumor model 102; the second sensing element 112 is provided with a plurality of and is distributed on the surface of the simulation pipeline; the second simulation pipeline 104 is respectively simulated intrahepatic blood vessels such as intrahepatic portal vein, hepatic vein, hepatic artery, etc.

[0033] According to the high simulation individualized liver intervention model, firstly, the model body 100 is placed in the model simulating human skeleton, skin and subcutaneous tissue, the real puncture scene is simulated to the maximum, the model body 100 is formed by 3D printing of a healable material, the hand feeling of human body puncture can be simulated, the simulation degree is high, and the model can be repeatedly used.Secondly, the liver model 101 and the tumor model 102 are arranged on the model body 100, the first simulation pipeline 103 for simulating intrahepatic bile duct and the second simulation pipeline 104 of a plurality of simulated intrahepatic blood vessels are arranged in the liver model 101, the first water bag 106 is connected with the first external pipeline 105 through the first simulation pipeline 103, the first water pump 107 is connected on the first external pipeline 105, the second water bag 109 is connected with the second external pipeline 108 through the second simulation pipeline 104, the second water pump 110 is connected on the second water bag 109, the first water pump 107 and the second water pump 110 are in a continuous perfusion state, so that the distribution of different intrahepatic tumors, the bile flow of intrahepatic bile duct and the blood flow of intrahepatic blood vessels can be simulated, and then the puncture target with different puncture difficulties can be simulated, the full coverage of puncture difficulty is ensured, and the authenticity of the model is improved.In addition, when the contact sensing head 201 of the puncture needle 200 contacts the first sensing element 111 arranged in the tumor model 102, an electric circuit is formed between the computer system 300, the transducer 202 and the first sensing element 111, the sensing lamp of the first sensing element 111 is lighted, the puncture success is prompted, at the same time, the electric signal can be recorded by the computer system 300 to calculate the corresponding puncture times and the puncture success times, so that the puncture success rate can be calculated and recorded; when the contact sensing head 201 of the puncture needle 200 contacts the second sensing element 112 arranged on the surface of the first simulation pipeline 103 and the surface of the second simulation pipeline 104, an electric circuit is formed between the computer system 300, the transducer 202 and the second sensing element 112, the second sensing element 112 gives an alarm, the puncture to the dangerous position is prompted, at the same time, the electric signal can be recorded by the computer system 300 to calculate the corresponding puncture times, so that the puncture risk can be warned.

[0034] For example, the first water valve 113 is arranged on the first water bag 106; the second water valve 114 is arranged on the second water bag 109.Through the design, the liquid in the first water bag 106 and the liquid in the second water bag 109 can flow into the first external pipeline 105 and the second external pipeline 108 respectively, which is more conducive to simulating the bile flow of intrahepatic bile duct and the blood flow of intrahepatic blood vessels.

[0035] Exemplarily, the puncture needle 200 is a hollow structure and is formed with a liquid channel 203, the puncture needle 200 is provided with a liquid outlet 205 at the end, the puncture needle 200 is provided with a liquid inlet 204 at the tip, and the liquid outlet 205 is connected with a liquid discharge pipe 206. In this way, when the puncture needle 200 punctures the first simulated pipeline 103 or the second simulated pipeline 104, the liquid in the first simulated pipeline 103 or the liquid of the second simulated pipeline 104 will flow out through the liquid inlet 204, the liquid channel 203, the liquid outlet 205 and the liquid discharge pipe 206 in sequence, so that the puncture to the dangerous position can be intuitively known. Further, according to the above description, the liquid carried in the first water bag 106 is different in color from the liquid carried in the second water bag 109, in this embodiment, the liquid carried in the first water bag 106 is preferably green in color, and the liquid carried in the second water bag 109 is preferably red in color, so that the puncturer can know which type of simulated pipeline is punctured according to the color of the liquid flowing out of the liquid discharge pipe 206, thereby enhancing the intuitiveness.

[0036] It should be further pointed out that, in this embodiment, the puncture needle 200 is provided with a wire channel 207, the wire channel 207 is independent of the liquid channel 203, and the connecting wire 208 between the transducer 202 and the contact sensing head 201 is arranged in the wire channel 207.

[0037] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, which should also be regarded as the protection scope of the present application.

Claims

1. A highly realistic individualized liver intervention model, characterized in that, The model body is 3D printed by self-healing hydrogel, and the model body is provided with a liver model and a tumor model. The liver model is provided with a first simulation pipeline for simulating intrahepatic bile duct and a second simulation pipeline for simulating multiple intrahepatic blood vessels. The first simulation pipeline is connected with a first water bag through a first external pipeline, and the first external pipeline is connected with a first water pump. The second simulation pipeline is connected with a second water bag through a second external pipeline, and the second water bag is connected with a second water pump. The first water bag carries liquid of a color different from that of the second water bag.

2. The highly realistic individualized liver intervention model according to claim 1, characterized in that, The tumor model is provided with a first sensing element, and the surfaces of the first simulation pipeline and the second simulation pipeline are provided with second sensing elements.

3. The highly realistic individualized liver intervention model of claim 1, wherein, The tip of the puncture needle is provided with a contact sensing head, and the end of the puncture needle is provided with a transducer electrically connected with the contact sensing head.

4. The high-fidelity individualized liver intervention model of claim 3, wherein, A computer system is electrically connected with the transducer, the first sensing element and the second sensing element through wires.

5. The high-fidelity individualized liver intervention model of claim 3, wherein, When the contact sensing head contacts with the first sensing element or the second sensing element, an electric circuit is formed between the computer system, the transducer, the first sensing element and the second sensing element.

6. The highly realistic individualized liver intervention model of claim 1, wherein, The first water bag is provided with a first water outlet valve, and the second water bag is provided with a second water outlet valve.

7. The highly realistic individualized liver intervention model of claim 1, wherein, The puncture needle is a hollow structure and is provided with a liquid passage.

8. The highly realistic individualized liver intervention model of claim 1, wherein, The end of the puncture needle is provided with a liquid outlet, and the tip of the puncture needle is provided with a liquid inlet. The liquid outlet is connected with a drainage tube. The puncture needle is provided with a wire passage independent of the liquid passage. The connecting wire between the transducer and the contact sensing head is arranged in the wire passage. The first sensing element is provided with multiple elements and is uniformly distributed in the tumor model. The second sensing element is provided with multiple elements and is uniformly distributed on the surfaces of the first simulation pipeline and the second simulation pipeline. The contact sensing head is a conductor.

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