CN101853600B - Blood vessel model and blood circulation simulating device using same - Google Patents

Abstract

The invention provides a blood vessel model for simulating blood circulation. The blood vessel model is made of transparent or translucent material simulating human body's aortic blood vessel, and is designed as a detachable split structure. The present invention also provides a blood circulation simulation device, which includes an experimental operation box, a liquid storage box, a control host connected to the liquid storage box for controlling the supply and discharge of simulated blood, and placed in the experimental operation box and sealed with the liquid storage box. Connected blood vessel model as described above, the experimental operation box is provided with an opening for minimally invasive instrument intervention, and the opening can be sealed. The invention effectively solves the problems of high cost, unintuitive operation process, difficult arterial interventional operation training and the like in the existing minimally invasive operation practice. The invention can be mainly used in occasions such as arterial minimally invasive interventional operation experiment, operation practice, arterial interventional operation experiment performance test and the like.

Description

A blood vessel model and a blood circulation simulation device using the blood vessel model

technical field

The present invention relates to a blood vessel model mainly used for arterial interventional surgical device performance testing, device parameter determination, and surgical simulation experiments. Simulator. the

Background technique

Due to the aging population, the increasing incidence of hypertension, diabetes, hyperlipidemia, and the rapid development of imaging diagnosis, the incidence and detection rate of arterial diseases are increasing day by day. The treatment process of traditional artificial vascular replacement is very complicated, traumatic, and extremely high in mortality, while minimally invasive treatment with endovascular stent intervention has the advantages of safety and effectiveness, so it has been accepted by most doctors and patients , has become the main treatment for arterial disease. Especially for patients with advanced age and many complications, it is the first choice, even the only cure. the

The ensuing problem is that the vascular stent needs to be delivered safely, smoothly and accurately to the lesion position of the arterial vessel, which requires a professional test device for the interventional vascular stent and delivery system of endovascular isolation, which can simulate the operation condition test The performance parameters of the stent and the delivery system; at the same time, the operator can be familiar with the internal structure of the blood vessel and the blood circulation process, and can skillfully insert the stent into the human blood vessel accurately and quickly, so as to treat vascular diseases with less damage and less pain. Obviously, it has long been impossible to effectively enable the operator to have the above-mentioned capabilities through static blood vessel pictures. the

At present, the more effective operation training and experiments of arterial minimally invasive interventional therapy are mainly done through animal experiments. However, there is a gap between animal vascular experiments and human vascular experiments, and the cost of animal experiments is high, and the operation practice can be repeated. The accuracy is low, and the operation process is not intuitive, which also has a certain impact on the accurate implementation of minimally invasive interventional surgery. the

Contents of the invention

An object of the present invention is to provide a transparent, clear, intuitive, low-cost and reusable blood vessel model. By injecting simulated blood into the model, the process of blood circulation can be visually displayed. the

For this reason, the blood vessel model provided by the present invention is processed and formed by simulating human aorta blood vessels from transparent or translucent materials, and is designed as a detachable split structure. The formed blood vessel model can have thoracic aorta and abdominal aorta respectively. In addition, the blood vessel model may further include a detachable branch artery model connected to the thoracic aorta and the abdominal aorta. Such a design allows the blood vessel model to be split according to actual needs, so as to simulate the blood circulation of the thoracic aorta or abdominal aorta and its branches. the

Preferably, properties such as hardness, surface roughness, toughness and elasticity of the transparent or translucent material are similar to those of human arteries, so as to facilitate the measurement of experimental performance parameters in interventional operations. In addition, the scale of the blood vessel model can also be advantageously set to be the same as that of a normal human arterial vessel, so as to increase the real feeling of the operator during the experiment. the

In order to ensure the smooth circulation of the simulated blood, the lumen of the blood vessel model should be set to be unobstructed, and preferably a removable sealing plug is provided at the opening of the model corresponding to each branch of the arterial blood vessel. the

Optionally, the transparent or translucent material can be selected from soft polymer materials such as soft polyvinyl chloride and silicon rubber. the

Another object of the present invention is to provide a blood circulation simulation device, by means of the simulation device, the blood circulation process in the blood vessel can be dynamically displayed, especially the minimally invasive operation of the blood vessel, especially the arterial blood vessel, can be performed by operating the simulation device. The simulation experiment of interventional treatment greatly improves the clinical operation ability of the operator. the

In order to achieve the above object, the blood circulation simulation device provided by the present invention includes an experimental operation box, a liquid storage box and a control host, and the control host is connected with the liquid storage box to control the supply and discharge of simulated blood. The blood vessel model mentioned above is sealed and communicated with the liquid storage tank, and the experimental operation box is also provided with an opening for the intervention of minimally invasive instruments, and the opening can be sealed. In one embodiment, the opening can be sealed by adding a sealing device such as a sealing ring; in another embodiment, the opening can preferably be sealed with a rubber stopper, for example. In the latter case, the minimally invasive instrument can pass directly through the sealing device. Since the incision size formed when the minimally invasive instrument enters the sealing device is small, the sealed state inside the experimental operation box can still be maintained, and this arrangement is very effective. It is beneficial to the repeated utilization of the operation box, and the cost is effectively reduced. the

In one embodiment, the experimental operation box may have a layered structure, including a blood vessel simulation layer, a pipeline layer, a drainage layer, and the like. Among them, the blood vessel simulation layer is mainly the surgical operation experiment area, which is used to place the blood vessel model to clearly and intuitively observe the simulated blood and the immediate situation of the surgical operation experiment; the pipeline layer mainly places the pipeline layer for simulating the blood delivery pipeline, In order to make the piping of the whole equipment neatly and concisely concentrated on this layer, this layer is especially beneficial when the simulation device has the blood simulation function of many capillaries; the liquid drainage layer is mainly used for cleaning the simulated blood after the experiment is completed. It is used to drain all the liquid in the whole device to prevent the liquid from corroding the equipment. the

Advantageously, the experimental operation box is made of transparent or translucent material, and the operator can visually observe the blood vessel model through the transparent or translucent upper cover of the experimental operation box. the

More preferably, the experimental operation box can be made of transparent or translucent polymer materials. In this way, the blood circulation simulation device of the present invention can perform perspective operation under the X-ray machine. Since the experimental operation box and the blood vessel model do not contain metal components, the operator can only see the shape of the blood vessel model and the dynamic simulation therein under the X-ray. The blood circulation process effectively realizes the realistic simulation of the real surgical environment. the

Further, the control host may include a control circuit, a hydraulic pump connected to the control circuit, a monitoring element, and a corresponding electronic display panel and control buttons, wherein the monitoring element is connected to the control circuit and the liquid storage tank for monitoring the simulated Blood temperature and hydraulic pressure, the hydraulic pump can simulate the heart to deliver simulated blood into the blood vessel model. In one embodiment, the hydraulic pump can be placed in the liquid storage tank to save accommodating space. Preferably, the monitoring element may be a sensor. the

It can be seen that the present invention mainly solves the performance test and verification of arterial minimally invasive interventional instruments in the surgical environment, and can be widely used in occasions such as performance testing of arterial interventional surgical instruments by various scientific research institutions and instrument manufacturing companies; at the same time, it also effectively solves the current There are problems such as high cost in minimally invasive surgical operation practice, unintuitive surgical process, difficult arterial interventional surgery training, etc. It can be used for arterial minimally invasive interventional surgery experiment and surgical operation practice. the

Description of drawings

More features and advantages of the present invention will be better understood through the further detailed description of the preferred embodiment below in conjunction with the accompanying drawings, wherein:

Fig. 1 is the schematic diagram of a preferred blood vessel model of the present invention;

Fig. 2 is a schematic perspective view of a blood circulation simulation device in an embodiment of the present invention;

Fig. 3 is a schematic top view of the blood circulation simulation device shown in Fig. 2;

Fig. 4 is a schematic perspective view of a blood circulation simulation device in another preferred embodiment of the present invention;

Fig. 5 is a schematic side view of the blood circulation simulation device shown in Fig. 4 . the

Explanation of reference signs

1 Vascular model 10 Thoracic aorta

11 ascending artery 12 innominate artery

13 left common carotid artery 14 left subclavian artery

20 abdominal aorta 21 internal iliac artery

22 External iliac artery 30 Sealing plug

40 interface

2 Experimental operation box 3 Control host

31, 32 electronic display panel 33 control buttons

6 openings

7 Conduit 71 Inlet pipe

72 liquid outlet pipe 8 liquid storage tank

9 sensors 4 blood vessel simulation layer

5 Pipeline layer 6 Drainage layer

Detailed ways

In order to better understand the present invention, the following will be further described in conjunction with specific examples of the present invention, but they do not limit the present invention. the

Referring first to Fig. 1, it schematically shows a preferred simulating aortic blood vessel model 1 of the present invention. The structure and curved shape of the aortic vessel model 1 are made according to the proportion of normal human body, that is, the ratio to normal human blood vessel is 1:1, so that the proportion of the whole vessel model is coordinated and reasonable. The blood vessel model 1 is a split structure, including a thoracic aorta 10 and an abdominal aorta 20 , which are detachably sealed at the interface 40 . Correspondingly, the model of each branch arterial vessel can be detachably connected to the thoracic aorta or the abdominal aorta at corresponding interfaces (not shown). The lumen of the model is unobstructed, openings can be provided at each end surface of the innominate artery 12, the left common carotid artery 13, the left subclavian artery 14, the common iliac artery, and the internal and external iliac arteries 21, 22, and a sealing plug 30 can be used to control its closing and opening. Wherein, the end face opening of the ascending artery 11 and the end face opening of the internal iliac artery 21 are arranged to be in sealing engagement with the simulation device to simulate the circulation of the blood solution in and out. In addition, ports (not shown) are provided at the end surfaces of the ascending artery 11 and the left femoral artery (ie, the iliac artery) for the insertion of minimally invasive instruments. the

The blood vessel model 1 can be installed and fixed in a closed container, and a hole is opened on the container where it contacts the femoral artery, so as to realize the introduction test from outside the container. the

Figure 2 and Figure 3 schematically show an embodiment of the blood circulation simulation device of the present invention, in order to facilitate description of the internal structure, the upper cover of the operation box has been removed. The simulation device includes an experimental operation box 2, a liquid storage box 8, and a control host 3 connected to the liquid storage box 8 for controlling the supply and discharge of simulated blood, wherein the liquid storage box 8 can be placed in the control host 3 to reduce the overall device size. volume space. the

The blood vessel model 1 is placed in the experimental operation box 2 and is in sealed communication with the liquid storage tank 8 through, for example, a conduit 7 . The conduit 7 is provided with a liquid inlet pipe 71 and a liquid outlet pipe 72, which can be sealedly connected to the end surface of the ascending artery and the end surface of the left femoral artery of the vascular model 1 (not shown), wherein the liquid inlet pipe 71 is connected to the end surface of the liquid storage tank 8 The liquid outlet valve (not shown), the liquid outlet pipe 72 is connected to the liquid inlet valve (not shown) of the liquid storage tank 8 . On both sides of the experimental operation box 2 are respectively provided openings 6 that can be inserted into minimally invasive instruments. The positions of the openings 6 correspond to the arterial end surfaces of the blood vessel model 1 in the operation box and can be sealed. the

The control host 3 includes a control circuit, a hydraulic pump (not shown) that is connected with the control circuit and placed in the liquid storage tank 8 as a pressure source for simulating blood circulation, and is connected with the control circuit and the liquid storage tank respectively for monitoring the simulation. Blood temperature and hydraulic pressure sensors 9, and corresponding electronic display panels 31, 32 and control buttons 33. The temperature of the simulated blood in the liquid storage tank 8 and the blood pressure in the blood vessel model can be set by regulating the button 33, and the simulated blood enters the blood vessel model along the catheter 7 for in vivo simulated circulation. The electronic display panel 31 can display the set temperature of the simulated blood and the real-time monitoring temperature learned by the sensor 9; similarly, the electronic display panel 32 can display the set hydraulic pressure and the real-time monitoring hydraulic pressure of the simulated blood circulation. the

Referring to Fig. 4 and Fig. 5, another preferred embodiment of the blood circulation simulation device of the present invention is shown. In this embodiment, the experimental operation box 2 is set to have a layered structure, which may include a blood vessel simulation layer 4 , a pipeline layer 5 , a drainage layer 6 and the like. Several layers are schematically shown in the figure, but it should be understood that more or fewer layers may be provided according to actual experimental needs. the

Similar to the above-mentioned embodiment, the arrangement of components such as the control host 3 and the liquid storage tank 8 is roughly the same, but in this embodiment, the components in the experimental operation box 2 are arranged more concisely and reasonably. Especially as shown in FIG. 5 , the simulated blood inlet and outlet conduits are placed under the blood vessel simulation layer 4 , so that a large number of conduits can be effectively avoided from interlacing in disorder. For beginners in experimental operations, the messy blood vessel simulation is very unfavorable. the

The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various variations or modifications within the scope of the appended claims. the

Claims (12)

1. a blood circulation simulating device, comprise experimental implementation case, hold liquid case and main control system, described main control system with hold liquid case and be connected for control simulation blood supply and discharge, wherein, in described experimental implementation case, be placed with and the vascular pattern that holds liquid case sealing and be communicated with, on described experimental implementation case, be also provided with the opening that mis instruments gets involved, this opening can be sealed; Described experimental implementation case is hierarchy, comprise the blood vessel simulation layer of placing described vascular pattern, place the pipeline floor on simulation blood transportation tube road, and the drain layers of cleaning simulate blood, wherein said vascular pattern is by the machine-shaping of transparent or semitransparent material simulation human aortic blood vessel, and be designed to detachable split-type structural, there is respectively aorta pectoralis and abdominal aorta.

2. blood circulation simulating device as claimed in claim 1, is characterized in that, described vascular pattern further comprises and being connected with abdominal aorta with aorta pectoralis and detachable bifurcated artery vascular pattern.

3. blood circulation simulating device as claimed in claim 2, is characterized in that, the hardness of described transparent or semitransparent material, surfaceness, toughness and elasticity are similar to the character of human body artery blood vessel.

4. blood circulation simulating device as claimed in claim 3, is characterized in that, the ratio of described vascular pattern is identical with the arterial vascular ratio of normal human.

5. blood circulation simulating device as claimed in claim 4, is characterized in that, the inner chamber of described vascular pattern is set to unobstructed, and on this vascular pattern, the opening part of each bifurcated artery vascular pattern is provided with removable sealing-plug.

6. the blood circulation simulating device as described in as arbitrary in claim 1-5, is characterized in that, described transparent or semitransparent material is soft macromolecular material.

7. blood circulation simulating device as claimed in claim 6, is characterized in that, described macromolecular material is selected from soft PVC PVC, silicon rubber.

8. blood circulation simulating device as claimed in claim 1, is characterized in that, described experimental implementation case is made by transparent or semitransparent material, and operator can be by the described vascular pattern of transparent or semitransparent upper cover observation directly perceived of this experimental implementation case.

9. blood circulation simulating device as claimed in claim 8, is characterized in that, described experimental implementation case is made by transparent or semitransparent macromolecular material.

10. blood circulation simulating device as claimed in claim 9, it is characterized in that, described main control system comprises control circuit, the hydraulic pump being connected with control circuit, monitoring element and corresponding Electronic Display Panel and regulation and control button, wherein, described monitoring element and control circuit with hold liquid case and be connected, for monitoring simulate blood temperature and hydraulic pressure.

11. blood circulation simulating devices as claimed in claim 10, is characterized in that, described in described hydraulic pump is placed in, hold in liquid case.

12. blood circulation simulating devices as claimed in claim 10, is characterized in that, described monitoring element is sensor.

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