Interventional therapy simulation device

Abstract

The utility model provides an interventional therapy simulation device, and belongs to the field of medical supplies. The utility model provides an interventional therapy simulation device. The interventional therapy simulation device comprises a base, a puncture simulation part and a radiography simulation part, wherein the puncture simulation part and the radiography simulation part are arranged on the base; and an organization structure simulation layer is arranged on the upper surface of the base. The coronary artery interventional therapy teaching aid can be used for simulating basic steps of puncture and radiography in coronary artery interventional therapy, can demonstrate key points of operation, is very suitable for beginners, and is low in price and convenient in material taking.

Description

Technical Field

[0001] The utility model belongs to the field of medical supplies, and in particular relates to an interventional treatment simulation device, which is used for simulating arterial puncture and catheterization and coronary angiography. Background Art

[0002] Interventional treatment includes: puncture and catheterization, angiography and stent placement, etc. In some of the least developed areas of the world, interventional treatment is just in its infancy. If local doctors who have no experience in interventional treatment are allowed to directly operate on patients, complications are likely to occur.

[0003] In order to enable local doctors to master the basic operating techniques of interventional treatment, it is usually necessary to use interventional treatment simulation devices to train doctors. However, existing interventional treatment simulators are very expensive and local hospitals cannot afford them at all. In addition, the operation of existing interventional treatment simulators is very complicated and not convenient for demonstration and operation.

[0004] Therefore, there is an urgent need for an interventional therapy simulation device that is easy to demonstrate and operate and low-cost. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned problems existing in the prior art and to provide an interventional treatment simulation device which is easy to demonstrate and operate and has low cost.

[0006] The utility model is realized by the following technical solutions:

[0007] The utility model provides an interventional therapy simulation device, which comprises: a base, and a puncture simulation component and an angiography simulation component arranged on the base;

[0008] A tissue structure simulation layer is arranged on the upper surface of the base.

[0009] Preferably, the base is a rectangular plate;

[0010] The tissue structure simulation layer is a rectangular plate made of soft material;

[0011] The length and width of the tissue structure simulation layer are smaller than the length and width of the base.

[0012] Preferably, the thickness of the tissue structure simulation layer is greater than 3 mm.

[0013] Preferably, the puncture simulation components include: an infusion set, an infusion bag, and a clamp;

[0014] The infusion bag contains red liquid;

[0015] The infusion bag is connected to the infusion set;

[0016] The infusion tube of the infusion device is fixed on the upper surface of the tissue structure simulation layer along the length direction of the tissue structure simulation layer;

[0017] The clamp clamps the end of the infusion tube.

[0018] Preferably, a plurality of elastic bands are arranged on the base along its length direction, one end of each elastic band is fixedly connected to the front lower surface of the base, the other end of the elastic band is provided with a Velcro fur surface, and the rear lower surface of the base is provided with a Velcro hook surface.

[0019] Preferably, a vertical pole perpendicular to the base is provided at one end of the base;

[0020] The bottom end of the vertical pole is fixedly connected to one end of the base, and a hook is arranged on the top end of the vertical pole for hanging an infusion bag.

[0021] Preferably, the angiography simulation component includes: an artery simulation tube, an aortic root simulation bottle;

[0022] One end of the artery simulation tube is communicated with the aorta root simulation bottle, and the other end of the artery simulation tube is a free end.

[0023] Preferably, the artery simulation tube is a plastic tube;

[0024] The middle part of the artery simulation tube is fixed on the side of the base along the length direction of the base.

[0025] Preferably, the aortic root simulation bottle comprises a bottle mouth and a bottle body connected to each other;

[0026] The inner diameter of the bottle mouth is smaller than the inner diameter of the bottle body;

[0027] One end of the bottle mouth is a bottle mouth closed end, and the other end is connected to one end of the bottle body, and the other end of the bottle body is a bottle body closed end; a hole is opened at the bottle mouth closed end, and one end of the artery simulation tube is connected to the hole at the bottle mouth closed end;

[0028] The closed end of the bottle body is elastic;

[0029] Two small holes are opened on the bottle body.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can be used to simulate the basic steps of puncture and angiography in coronary interventional treatment, can demonstrate the key points of the operation, is very suitable for beginners, and is low in price and easy to obtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The front view of the interventional therapy simulation device of the utility model;

[0032] Figure 2A top view of the interventional therapy simulation device of the utility model;

[0033] Figure 3 A schematic structural diagram of an elastic band and a base in the interventional treatment simulation device of the utility model. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0035] In order to reduce costs, the utility model uses low-cost medical consumables to design an interventional therapy simulation device that is easy to demonstrate and operate, and can help doctors understand the basic principles of interventional therapy operations. The interventional therapy simulation device can be used to simulate the Seldinger method and the improved Seldinger method arterial puncture technology, and can also be used to simulate coronary angiography operations.

[0036] like Figures 1 to 3 As shown, the interventional treatment simulation device provided by the utility model comprises: a base 1, and a puncture simulation component and an angiography simulation component arranged on the base 1; a tissue structure simulation layer 2 is arranged on the upper surface of the base 1.

[0037] Specifically, the base 1 is a rectangular plate, for example, an ordinary wooden board, a hard plastic board, etc.

[0038] The tissue structure simulation layer 2 is used to simulate the tissue structure of the human body. It is a rectangular plate made of soft material, and the puncture needle can be inserted into it. For example, an ordinary foamed plastic plate can be used. The thickness of the tissue structure simulation layer 2 is greater than 3mm, preferably 5mm. The length and width of the tissue structure simulation layer 2 are less than the length and width of the base 1.

[0039] The tissue structure simulation layer 2 can be directly placed on the upper surface of the base 1, or a groove can be made on the upper surface of the base 1, and the tissue structure simulation layer 2 can be placed in the groove, and the length direction of the tissue structure simulation layer 2 is the same as the length direction of the base 1. When in use, the puncture needle will penetrate the infusion tube 5 and then pierce into the tissue structure simulation layer 2, thus simulating the situation in which the puncture needle penetrates the blood vessel wall and enters the human tissue structure during the actual puncture process. If the tissue structure simulation layer 2 is not provided, the puncture needle will directly contact the base 1 after penetrating the infusion tube 5, thus failing to simulate the actual situation of penetrating the back wall of the blood vessel and entering the human tissue structure.

[0040] The puncture simulation components include: an infusion set, an infusion bag 4, and a clamp 6; the infusion set adopts an existing infusion set, including a drip pot, a flow valve, and an infusion tube 5, etc. ( Figure 1 , Figure 2The drip pot, flow valve, etc. are not shown in the figure). The infusion bag 4 adopts the existing infusion bag 4, which can be connected to the infusion set. The infusion tube 5 of the infusion set is fixed on the upper surface of the tissue structure simulation layer 2 along the length direction of the tissue structure simulation layer 2. The end of the infusion tube 5 can be clamped by the clamp 6 to prevent the liquid from flowing out from the end of the infusion tube 5. The infusion bag 4 contains red liquid (red ink can be used, or red pigment is added to water, etc.) for simulating blood.

[0041] When in use, the infusion set is connected to the infusion bag 4, and the liquid in the infusion bag 4 enters the infusion tube 5. When the infusion tube 5 is filled with red liquid, the end of the infusion tube 5 is clamped with a clamp 6 to prevent the liquid from flowing out. In addition, since the punctured infusion tube 5 will leak, it is necessary to cut off the section of the infusion tube with the puncture hole after the puncture is completed, and then continue to use the infusion tube without the puncture hole. In actual operation, the end of the infusion tube 5 is grasped to move the infusion tube 5 to the right, and then the end of the infusion tube 5 to the section of the infusion tube with the puncture hole is cut off, and another section of the infusion tube 5 is placed on the tissue structure simulation layer 2, and the shearing position forms a new end of the infusion tube 5, and then the new end is clamped with a clamp 6, so that it can quickly return to the unpunctured state, which is another advantage of using the clamp 6.

[0042] The infusion set, the infusion bag 4 and the clamp 6 are all common consumables, which are easily available even in underdeveloped areas, so they are low in cost and convenient to obtain.

[0043] In actual use, multiple opaque tapes can be used to fix the infusion tube 5 and the tissue structure simulation layer 2 on the base 1. Multiple elastic bands 11 can also be set on the base 1 along the length direction of the base 1, such as Figure 3 As shown ( Figure 3 Only the elastic bands 11 at the two ends of the tissue structure simulation layer 2 are drawn, and the other elastic bands 11 between the two are not drawn). One end of each elastic band 11 is fixedly connected to the front lower surface of the base 1, and the other end of the elastic band 11 is provided with a Velcro fur surface, and the rear lower surface of the base 1 is provided with a Velcro hook surface (the front side, the rear side, the upper surface, and the lower surface are from Figure 1 From the perspective of the present invention, the other end of the elastic band 11 can be fixed by bonding the fur surface of the Velcro to the hook surface, and then the tissue structure simulation layer 2 and the infusion tube 5 can be fixed by the elastic band 11. Figure 3 The elastic band 11 can be an existing elastic band or rubber band, etc., which has a certain elasticity and is opaque.

[0044] During simulation, in order to facilitate beginners' understanding, the elastic bands 11 at both ends of the tissue structure simulation layer 2 can be fixed respectively, so that the infusion tube 5 (i.e., the simulated blood vessel) between the two elastic bands 11 is exposed, making it easier for beginners to see the position of the infusion tube 5.

[0045] Since the human blood vessels cannot be seen during the puncture operation in actual interventional treatment, the blood vessels must be felt by hand. Therefore, when the practitioner becomes proficient in the operation, the entire tissue structure simulation layer 2 can be covered with tape or elastic band 11 (for example, the two ends of the tissue structure simulation layer 2 and the multiple elastic bands 11 between the two ends can be fixed, and the sum of the widths of these elastic bands 11 is equal to the length of the tissue structure simulation layer 2). In this way, the infusion tube 5 on the tissue structure simulation layer 2 cannot be seen. At this time, the perception of the blood vessels can be practiced by touching the tape or elastic band 11, which can better simulate the real situation. After the trainee is very proficient in the operation, another layer of tissue structure simulation layer can be added between the infusion tube and the tape (or elastic band), so that the puncture of obese patients or patients with deeper radial arteries can be simulated.

[0046] Furthermore, in order to facilitate hanging the infusion bag 4, a vertical pole 3 perpendicular to the base 1 can be set at one end of the base 1, the bottom end of the vertical pole 3 is fixedly connected to one end of the base 1, and a hook is set at the top of the vertical pole 3 for hanging the infusion bag 4.

[0047] In actual interventional treatment, because the infusion bag 4 is suspended at a high place, after the puncture needle is used to pierce the blood vessel, blood will flow into the puncture needle. This situation is commonly known as "blood return" by doctors. Existing interventional treatment simulators cannot simulate this detail of "blood return". The improved Seldinger puncture method requires penetrating the back wall of the blood vessel, and then slowly withdrawing the cannula until blood return is seen. Therefore, the utility model pads the tissue structure simulation layer 2 under the infusion tube 5, so that the puncture needle can continue to move forward after completely passing through the wall of the infusion tube 5 until there is no blood return. Then withdraw the cannula, and when the head end of the cannula enters the infusion tube 5, red liquid enters the cannula.

[0048] The steps for simulating arterial puncture and catheterization using the above device are as follows:

[0049] (1) Prepare the consumables for puncture: 5mm syringe, a little water, puncture needle, puncture guide wire, catheter sheath, sheath core, and blade. These can be discarded medical consumables and can be used after cleaning.

[0050] (2) Assemble the catheter sheath and sheath core for later use. Draw water with a 5 mm syringe and use the water to simulate anesthetic.

[0051] (3) Use a 5 mm syringe for local anesthesia: The syringe is inserted through the tape or elastic band 11 and then inserted into the tissue structure simulation layer next to the infusion tube 5. That is, the syringe is not inserted into the infusion tube, but into the tissue structure simulation layer next to the infusion tube, simulating the syringe penetrating the skin and inserting into the tissue structure around the blood vessels.

[0052] (4) Use your left hand to touch the infusion tube 5 to find the puncture point. Hold the puncture needle with your right hand at an angle of 30-45 degrees to the tissue structure simulation layer 2 and insert it into the infusion tube 5 from the puncture point. After seeing blood return, continue to insert the needle until there is no blood return (i.e., penetrate the back wall of the infusion tube 5 and enter the tissue structure simulation layer 2), withdraw the needle core of the puncture needle, and keep the cannula of the puncture needle;

[0053] (5) Slowly withdraw the cannula. When the tip of the cannula is returned to the infusion tube 5, liquid can be seen spraying out or flowing out rapidly. Then slowly insert the puncture guide wire into the cannula. After the puncture guide wire is halfway inserted, withdraw the cannula.

[0054] (6) Use a blade to cut the tape or elastic band 11, but avoid cutting the infusion tube 5, simulating a blade cutting the skin;

[0055] (7) Insert the tail end of the puncture guide wire into the catheter sheath until the tail end of the puncture guide wire extends out of the catheter sheath. Insert the catheter sheath into the infusion tube 5, and withdraw the sheath core to complete the puncture.

[0056] like Figure 2 As shown (for clarity, Figure 1 The angiography simulation components are not shown. Figure 2 The puncture simulation component is not drawn in the figure), and the angiography simulation component includes: an artery simulation tube 7 and an aortic root simulation bottle; one end of the artery simulation tube 7 is connected to the aortic root simulation bottle, and the other end of the artery simulation tube 7 is a free end.

[0057] The artery simulation tube 7 is a common plastic tube with a smooth inner wall for simulating peripheral arteries. The middle part of the artery simulation tube 7 is fixed to the side of the base 1 along the length direction of the base 1, and can be directly bonded to the side of the base 1, or fixed to the side of the base 1 through an elastic band 11. Preferably, the inner diameter of the artery simulation tube 7 is greater than 2 mm, so that the consumables of the angiography can pass through.

[0058] The aortic root simulation bottle includes a bottle mouth 8 and a bottle body 9 connected to each other, and the inner diameter of the bottle mouth 8 is smaller than the inner diameter of the bottle body 9; one end of the bottle mouth 8 is a bottle mouth closed end, and the other end is connected to one end of the bottle body 9, and the other end of the bottle body 9 is a bottle body closed end. A hole is opened at the closed end of the bottle mouth, and one end of the artery simulation tube 7 is connected to the hole at the closed end of the bottle mouth. The closed end of the bottle body is elastic, for example, it can be made of elastic materials such as silicone and rubber. The bottle mouth 8 is used to simulate the ascending aorta part of the aortic root, the bottle body 9 is used to simulate the aortic sinus of the aortic root, and the closed end of the bottle body is used to simulate the aortic valve. Because there are two coronary artery openings in the aortic sinus of the human body, two small holes 10 are opened on the bottle body 9 to simulate the coronary artery openings. Preferably, the diameter of each small hole 10 is 2-3mm. Preferably, the bottle mouth 8 and the bottle body 9 are both cylindrical structures, wherein the inner diameter of the bottle mouth 8 is 30 mm, and the inner diameter of the bottle body 9 is 40-50 mm. On the central axis of the aortic root simulation bottle, the distance between the center of the small hole 10 and the bottom of the bottle mouth 8 is 20-30 mm, and the angle between the two small holes can be set according to the angle between the two coronary artery openings of the actual human body. Since the height of the human aortic sinus is about 2-4 cm, the height of the bottle body 9 is 2-4 cm.

[0059] In actual use, most of the bottle body of a 600ml mineral water bottle can be cut off, leaving only the bottle cap, bottle mouth 8 and part of the bottle body (i.e., retaining 40-50mm of the bottle body), and the bottle body 9 is sealed with a balloon (or the bottle body 9 is sealed with tape, and a soft material is padded inside the tape), that is, the bottle cap forms the closed end of the bottle mouth 8, and the balloon (or the tape and the soft material) forms the closed end of the bottle body, and then a hole is pierced on the bottle cap, the artery simulation tube 7 is connected to the hole on the bottle cap, and two small holes are opened on the bottle body. In this way, an aortic root simulation bottle is obtained.

[0060] The steps for performing angiography demonstration using the above device are as follows:

[0061] (1) Prepare the consumables required for the angiography operation: angiography tube, 0.035” angiography guidewire, three-way connection, syringe, and radial artery sheath; these can be discarded medical consumables and can be used after cleaning.

[0062] (2) inserting the radial artery sheath into the free end of the artery simulation tube 7, simulating that the radial artery sheath has been successfully inserted into the patient;

[0063] (3) Assemble the tee and syringe;

[0064] (4) Insert the tip of the angiography tube into the radial artery sheath, insert the angiography guide wire from the tail end of the angiography tube, and under the guidance of the angiography guide wire, pass the tip of the angiography tube through the artery simulation tube 7 and then send it into the inner cavity of the aortic root simulation bottle, and withdraw the angiography guide wire;

[0065] (5) Connect the tail end of the angiography tube to the tee and the syringe;

[0066] (6) Rotate the knob at the front of the three-way valve to drive the angiography tube to rotate, and the tip of the angiography tube will rotate accordingly. Through operations such as rotation, pulling and inserting, the tip of the angiography tube is sent to the small hole 10 on the bottle body 9 and passes through the small hole 10, thus simulating the tip of the angiography tube passing through the opening of the coronary artery.

[0067] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0068] The above technical solution is only one implementation method of the utility model. For those skilled in the art, it is easy to make various types of improvements or modifications based on the principles disclosed in the utility model, and it is not limited to the technical solution described in the above specific embodiments of the utility model. Therefore, the above description is only preferred and does not have a restrictive meaning.

Claims

1. An interventional therapy simulation device, characterized in that: The interventional treatment simulation device comprises: a base, and a puncture simulation component and an angiography simulation component arranged on the base; A tissue structure simulation layer is arranged on the upper surface of the base.

2. The interventional therapy simulation device according to claim 1, characterized in that: The base is a rectangular plate; The tissue structure simulation layer is a rectangular plate made of soft material; The length and width of the tissue structure simulation layer are smaller than the length and width of the base.

3. The interventional therapy simulation device according to claim 1, characterized in that: The thickness of the tissue structure simulation layer is greater than 3 mm.

4. The interventional therapy simulation device according to claim 1, characterized in that: The puncture simulation components include: an infusion set, an infusion bag, and a clamp; The infusion bag contains red liquid; The infusion bag is connected to the infusion set; The infusion tube of the infusion device is fixed on the upper surface of the tissue structure simulation layer along the length direction of the tissue structure simulation layer; The clamp clamps the end of the infusion tube.

5. The interventional therapy simulation device according to claim 1, characterized in that: A plurality of elastic bands are arranged on the base along its length direction, one end of each elastic band is fixedly connected to the front lower surface of the base, the other end of the elastic band is provided with a Velcro fur surface, and the rear lower surface of the base is provided with a Velcro hook surface.

6. The interventional therapy simulation device according to claim 1, characterized in that: A vertical pole perpendicular to the base is arranged at one end of the base; The bottom end of the vertical pole is fixedly connected to one end of the base, and a hook is arranged on the top end of the vertical pole for hanging an infusion bag.

7. The interventional therapy simulation device according to claim 1, characterized in that: The angiography simulation components include: an artery simulation tube, an aorta root simulation bottle; One end of the artery simulation tube is communicated with the aorta root simulation bottle, and the other end of the artery simulation tube is a free end.

8. The interventional therapy simulation device according to claim 7, characterized in that: The artery simulation tube is a plastic tube; The middle part of the artery simulation tube is fixed on the side of the base along the length direction of the base.

9. The interventional therapy simulation device according to claim 7, characterized in that: The aortic root simulation bottle comprises a bottle mouth and a bottle body which are connected; The inner diameter of the bottle mouth is smaller than the inner diameter of the bottle body; One end of the bottle mouth is a bottle mouth closed end, and the other end is connected to one end of the bottle body, and the other end of the bottle body is a bottle body closed end; a hole is opened at the bottle mouth closed end, and one end of the artery simulation tube is connected to the hole at the bottle mouth closed end; The closed end of the bottle body is elastic; Two small holes are opened on the bottle body.

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