Demonstration teaching aid for left heart auxiliary device
By designing a demonstration teaching aid for a left ventricular assist device to simulate the heart surgery process, the problem of novice doctors' understanding was solved, the effect of preoperative education was improved, the emotions of children were alleviated, and a portable and easy-to-use teaching aid design was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-31
AI Technical Summary
Current technology lacks teaching aids for connecting and operating external controllers during cardiac surgery, making it difficult for novice doctors to understand, resulting in poor preoperative education, and children not understanding the purpose of the external controller, which makes it difficult to alleviate their emotions.
A demonstration teaching aid for a left ventricular assist device, comprising a housing, a human body model, and a blood pump model, was designed to simulate a heart surgery procedure. The operation of an external controller is demonstrated by connecting the simulation model inside the housing and the wiring. Two connection methods are provided for easy carrying and storage.
It improved the understanding of novice doctors, enhanced the effectiveness of preoperative education, alleviated the emotions of children, and facilitated the operation demonstration and carrying by the instructors.
Smart Images
Figure CN224067327U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical appliance technical field, concretely is a left heart auxiliary device demonstration teaching aid. BACKGROUND
[0002] Implantable left ventricular assist device (LVAD) is a kind of mechanical device for assisting heart blood pumping, mainly used for treating patients with advanced heart failure.LVAD is implanted in patient's body by surgery, one end is connected to left ventricle, the other end is connected to aorta.The pump in the device pumps blood from left ventricle and delivers to aorta, to help heart complete the function of blood pumping.This device can provide continuous blood flow, help maintain blood circulation.Surgical steps: 1, make incision in the middle of chest, separate sternum to expose heart;2, insert main pump into left ventricular apex, pump blood into aorta through a plastic hose;3, open a small hole in abdominal position, connect pump with extracorporeal controller.
[0003] At present, there is no teaching aid for extracorporeal controller connection operation demonstration in market.Tutor without teaching aid may cause novice doctors difficult to understand, and poor teaching effect.
[0004] In addition, the child does not know the purpose of extracorporeal controller, does not understand why to wear on the body, without teaching aid, the preoperative propaganda effect of medical staff is poor, it is difficult to alleviate the mood of the child. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a left heart auxiliary device demonstration teaching aid, which is easy for novice doctors to understand and has good teaching effect, and the left heart auxiliary device is stored in the box body, so it is convenient to carry.
[0006] In order to achieve the above utility model purposes, the utility model adopts the following technical solutions:
[0007] A left heart auxiliary device demonstration teaching aid, comprising a box body, a human body model and a blood pump model, the human body model is provided with a visceral cavity at the heart position, the visceral cavity opening is provided with a peelable cover, and a heart model is placed in the visceral cavity, the heart model is provided with a through hole at the left ventricular position on the front surface, and the blood pump model is provided with a cannula, which is inserted into the through hole.The box body comprises an A box cover and a B box cover, the A box cover and the B box cover are covered with each other, and the left heart auxiliary device is placed in the box body, the left heart auxiliary device adopts a simulation model, and the left heart auxiliary device comprises an extracorporeal controller, a converter, a charger, a computer screen, two batteries and a plurality of wires.The human body model is provided with a percutaneous port at the abdominal position, and the percutaneous port is connected with the extracorporeal controller through wires.
[0008] Compared with the prior art, the left heart auxiliary device demonstration teaching aid adopting the above technical solutions has the following beneficial effects:
[0009] Using the left heart assist device demonstration teaching aid of the present utility model, the tutor opens the cover of the human body model, takes out the heart model and blood pump in the dirty cavity, and explains the installation position of the blood pump on the heart model. When the external controller is connected for operation demonstration, the heart model is placed back into the dirty cavity, the cover is covered, and the output end of the external controller is connected to the percutaneous port through an electric wire. There are two connection methods for the external controller: First, the external controller is respectively connected to two batteries through electric wires; Second, the external controller is respectively connected to the battery and the converter through electric wires, the converter is respectively connected to the charger and the computer screen through electric wires, and the charger is connected to the power supply through an electric wire. The tutor uses the teaching aid for operation demonstration, making it easier for novice doctors to understand and achieving better teaching effects.
[0010] The left heart assist device is stored in the box for convenient carrying.
[0011] Before the operation, medical staff use the teaching aid for education, enabling the child to know the use of the external controller, making it easier to understand the reason for wearing it on the body, and relieving the child's emotions.
[0012] Preferably, the inner surface of the A box cover is provided with a first groove, a second groove, a third groove, a fourth groove and a fifth groove. The back surface of the external controller is embedded in the first groove. The battery is in a "7" shape, and two batteries are embedded in the second groove after being fitted in a "return" shape. The back surface of the converter is rectangular, and the converter is embedded in the third groove. The back surface of the computer screen is embedded in the fourth groove. The back surface of the charger is embedded in the fifth groove. The position of the external controller is fixed by the first groove, the positions of the two batteries are fixed by the second groove, the position of the converter is fixed by the third groove, the position of the computer screen is fixed by the fourth groove, and the position of the charger is fixed by the fifth groove, so that the left heart assist device is neatly placed in the box.
[0013] Preferably, the inner surface of the A box cover is further provided with two grooves. One groove is opened in the middle of the first groove and the second groove, and the other groove is opened in the middle of the second groove and the third groove. The second groove is respectively connected to the first groove and the second groove in an "L" shape, and the included angle between the first groove and the third groove is 90°. The tutor can easily pick out the external controller, converter and battery by inserting a finger into the groove.
[0014] Preferably, the inner surface of the A box cover is provided with a dirty placing groove and a pump placing groove. The dirty placing groove is oval, and the heart model is placed in the dirty placing groove. The surface of the pump placing groove is provided with a slot, and the blood pump model is placed in the pump placing groove and the cannula is inserted into the slot. The pump placing groove is opened on the side of the dirty placing groove. The blood pump model and the heart model are stored in the box, which is convenient for carrying and not easily lost. The tutor can easily pick out the blood pump model in the pump placing groove by inserting a finger into the dirty placing groove. The blood pump model and the heart model are together, which is convenient for taking and placing.
[0015] Preferably, the inner surface of the B box cover is provided with a plurality of bag bodies, and a plurality of electric wires are respectively arranged in the plurality of bag bodies. The electric wires are stored separately to avoid consuming time in combing due to entanglement between the electric wires, and are convenient to take.
[0016] Preferably, the bag body is provided with a bag opening, and the bag opening is provided with a flap. The flap is fixed to the inner surface of the B box cover by magic tape. The flap closes the bag opening after being adhered, preventing the electric wires in the bag body from falling out. The electric wires in the bag body can be taken out after the flap is torn open.
[0017] Preferably, the side surface of the B box cover is provided with a retractable movable plate. When the left heart assist device in the box body is taken out, the instructor pulls out the movable plate, and the electric wires, the battery, the external controller and the converter can be temporarily placed on the movable plate, reducing the desktop space occupied. When not in use, the instructor pushes the movable plate back, reducing the volume of the box body and facilitating storage.
[0018] Preferably, the box body is provided with a shoulder strap for hanging the box body. The shoulder strap can refer to the shoulder strap of the existing single-shoulder cross-body bag (the manufacturer is Baoding Baigou Xincheng Fucai Bag Factory). The box body is hung on the side of the instructor through the shoulder strap, which is convenient to carry. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic diagram of the box body when opened in the embodiment.
[0020] Figure 2 It is a front view of the box body when opened in the embodiment.
[0021] Figure 3 It is a structure schematic diagram of the box body when closed in the embodiment.
[0022] Figure 4 It is a structure schematic diagram of the movable plate after being pulled out in the embodiment.
[0023] Figure 5 It is a structure schematic diagram of the human body model in the embodiment.
[0024] Figure 6 It is a structure schematic diagram of the human body model in the embodiment.
[0025] Figure 7 It is a schematic diagram of the external controller connecting two batteries by electric wires in the embodiment.
[0026] Figure 8 It is a schematic diagram of the external controller connecting the battery, the charger and the display screen by electric wires in the embodiment.
[0027] Figure 9 It is a structure schematic diagram of the external controller in the embodiment.
[0028] Figure 10 It is a structure schematic diagram of the computer screen in the embodiment.
[0029] Figure 11 Structure diagram of the box in the embodiment when the box is closed.
[0030] Figure 12 Use diagram of the box in the embodiment.
[0031] Reference signs: 1, box; 11, hand carrying handle; 12, shoulder strap; 13, buckle; 2, A box cover; 21, first slot; 22, second slot; 23, third slot; 24, fourth slot; 25, fifth slot; 26, dirty slot; 27, pump slot; 28, insertion slot; 29, recess; 3, B box cover; 31, bag body; 32, lifting piece; 33, movable plate; 34, handle; 4, heart model; 40, through opening; 41, blood pump model; 42, cannula; 51, external controller; 52, battery; 53, converter; 54, computer screen; 55, charger; 56, electric wire; 57, handle; 61, alarm lamp; 62, mute button; 63, display screen; 64, display button; 7, human body model; 71, dirty cavity; 72, envelope; 73, percutaneous port. DETAILED DESCRIPTION
[0032] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows by combining with the drawings and the preferred embodiments.
[0033] As Figures 1 to 12The left heart auxiliary device demonstration tool shown includes a box 1, a human body model 7 and a blood pump model 41, the human body model 7 is provided with a visceral cavity 71 at the heart position, the visceral cavity 71 is provided with a peelable cover 72 at the opening, the cover 72 is made of silicone, the heart model 4 is placed in the visceral cavity 71, the heart model 4 is provided with a through hole 40 at the left ventricle position in the front, the blood pump model 41 is provided with a cannula 42, the cannula 42 is inserted into the through hole 40. The box 1 includes an A box cover 2 and a B box cover 3, the A box cover 2 and the B box cover 3 are covered with each other, the left heart auxiliary device is placed in the box 1, the left heart auxiliary device is made of a simulation model, the left heart auxiliary device includes an extracorporeal controller 51, a converter 53, a charger 55, a computer screen 54, two batteries 52 and a plurality of wires 56. The human body model 7 is provided with a percutaneous port 73 at the abdominal position, the percutaneous port 73 is connected with the extracorporeal controller 51 through the wire 56. The instructor peels the cover 72 of the human body model 7, takes out the heart model 4 in the visceral cavity 71 and the blood pump, and explains the installation position of the blood pump on the heart model 4. When the extracorporeal controller 51 is connected and operated for demonstration, the heart model 4 is placed back into the visceral cavity 71, the cover 72 is covered, and the output end of the extracorporeal controller 51 is connected with the percutaneous port 73 through the wire 56. The extracorporeal controller 51 has two connection methods: the first method is that the extracorporeal controller 51 is connected with the two batteries 52 through the wire 56 respectively; the second method is that the extracorporeal controller 51 is connected with the battery 52 and the converter 53 through the wire 56 respectively, the converter 53 is connected with the charger 55 and the computer screen 54 through the wire 56 respectively, and the charger 55 is connected with the power supply through the wire 56. The instructor uses the tool to operate and demonstrate, so that the novice doctor can more easily understand and the teaching effect is better.
[0034] As shown in the formula (I), the extracorporeal controller 51 is provided with an alarm lamp 61, a mute button 62, a display screen 63 and a display button 64 in the front; as shown in the formula (II), the computer screen 54 displays a real-time data interface in the front, the real-time data interface displays flow, speed, power, pulsatility index and a real-time data curve, which facilitates the instructor to explain the extracorporeal controller 51 and the computer screen 54. Figure 9 Figure 10
[0035] Refer to the formulas (III) and (IV). Figure 1 Figure 2 , on the inner surface of the A box cover 2, there are a first groove 21, a second groove 22, a third groove 23, a fourth groove 24 and a fifth groove 25. The back surface of the external controller 51 is embedded in the first groove 21. The battery 52 is in a "7" shape, and two batteries 52 are embedded in the second groove 22 after being fitted in a "hui" shape. The back surface of the converter 53 is rectangular, and the converter 53 is embedded in the third groove 23. The back surface of the computer screen 54 is embedded in the fourth groove 24. The back surface of the charger 55 is embedded in the fifth groove 25. Both the computer screen 54 and the charger 55 are provided with grips 57. The position of the external controller 51 is fixed by the first groove 21, the positions of the two batteries 52 are fixed by the second groove 22, the position of the converter 53 is fixed by the third groove 23, the position of the computer screen 54 is fixed by the fourth groove 24, and the position of the charger 55 is fixed by the fifth groove 25, so that the left heart assist device is neatly placed in the box body 1.
[0036] Among them, there are also two grooves 29 on the inner surface of the A box cover 2. One of the grooves 29 is opened in the middle of the first groove 21 and the second groove 22, and the other groove 29 is opened in the middle of the second groove 22 and the third groove 23. The second groove 22 is respectively connected to the first groove 21 and the second groove 22 in an "L" shape, and the included angle between the first groove 21 and the third groove 23 is 90°. The tutor inserts a finger into the groove 29 and can easily pick out the external controller 51, the converter 53 and the battery 52.
[0037] Among them, on the inner surface of the A box cover 2, there are a dirt placement groove 26 and a pump placement groove 27. The dirt placement groove 26 is oval, and the heart model 4 is placed in the dirt placement groove 26. The surface of the pump placement groove 27 is provided with a slot 28. The blood pump model 41 is placed in the pump placement groove 27 and the intubation 42 is inserted into the slot 28. The pump placement groove 27 is opened on the side of the dirt placement groove 26, and the dirt placement groove 26 is arranged within the included angle between the first groove 21 and the third groove 23, so the space utilization rate inside the box body 1 is relatively high. The blood pump model 41 and the heart model 4 are stored in the box body 1, which is convenient to carry and not easy to lose. The tutor inserts a finger into the dirt placement groove 26 and can easily pick out the blood pump model 41 in the pump placement groove 27. The blood pump model 41 and the heart model 4 are together, which is convenient for taking and placing.
[0038] Among them, there are several bags 31 on the inner surface of the B box cover 3, and several electric wires 56 are respectively placed in the several bags 31. The electric wires 56 are stored separately to avoid wasting time sorting them out due to entanglement between the electric wires 56 and facilitate taking.
[0039] Among them, the bag 31 has a bag mouth, and the bag mouth is provided with a flap 32. The flap 32 is fixedly adhered to the inner surface of the B box cover 3 through a magic sticker. After the flap 32 is adhered, the bag mouth is closed to prevent the electric wires 56 in the bag 31 from falling out; after the flap 32 is torn off, the electric wires 56 in the bag 31 can be taken out.
[0040] Refer to Figure 3The lids 2 and 3 of box A can be flipped together. The box body 1 is equipped with a handle 11 and a buckle 13. The buckle 13 is used to prevent the box body 1 from being opened accidentally. The buckle 13 can refer to the existing duckbill buckle (manufacturer is Lufeng Jiazi Pengxing Plastic Products Factory). The left ventricular assist device is stored inside the box body 1. The instructor holds the box body 1 with the handle 11 for easy carrying.
[0041] Reference Figure 4 The side of the box cover 3 is equipped with a retractable movable plate 33, and the outer end face of the movable plate 33 is equipped with a handle 34. When taking out the left ventricular assist device from the box 1, the instructor pulls out the movable plate 33 through the handle 34. The wires 56, battery 52, external controller 51 and converter 53 can be temporarily placed on the movable plate 33 to reduce the space occupied on the table. When not in use, the instructor pushes the movable plate 33 back to reduce the volume of the box 1 and make it easier to store.
[0042] Reference Figure 11 and 12 The case body 1 is equipped with a shoulder strap 12, with both ends of the shoulder strap 12 fixed to the two sides of the case cover 2. The case body 1 can be hung on the side of the tutor via the shoulder strap 12 for easy carrying.
[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A left heart assist device demonstration aid, characterized by: It includes a box body (1), a human body model (7) and a blood pump model (41). The human body model (7) has a visceral cavity (71) at the heart position. The opening of the visceral cavity (71) is provided with a detachable cover (72). A heart model (4) is placed in the visceral cavity (71). A through hole (40) is provided at the position of the left ventricle on the front of the heart model (4). The blood pump model (41) is provided with an intubation tube (42), and the intubation tube (42) is inserted into the through hole (40). The box body (1) includes an A box cover (2) and a B box cover (3). The A box cover (2) and the B box cover (3) are covered with each other. A left heart assist device is placed in the box body (1). The left heart assist device uses a simulation model. The left heart assist device includes an external controller (51), a converter (53), a charger (55), a computer screen (54), two batteries (52) and several electric wires (56). The human body model (7) has a percutaneous opening (73) at the abdominal position. The percutaneous opening (73) is connected to the external controller (51) through an electric wire (56).
2. The left heart assist device demonstration teaching aid of claim 1, wherein: The inner surface of the A box cover (2) is provided with a first groove (21), a second groove (22), a third groove (23), a fourth groove (24) and a fifth groove (25). The back of the external controller (51) is embedded in the first groove (21). The battery (52) is in a "7" shape, and the two batteries (52) are in a "回" shape and embedded in the second groove (22) after being fitted. The back of the converter (53) is rectangular, and the converter (53) is embedded in the third groove (23). The back of the computer screen (54) is embedded in the fourth groove (24). The back of the charger (55) is embedded in the fifth groove (25).
3. The left heart assist device demonstration teaching aid of claim 2, wherein: The inner surface of the A box cover (2) is also provided with two grooves (pg29). One of the grooves (29) is opened in the middle of the first groove (21) and the second groove (22), and the other groove (29) is opened in the middle of the second groove (22) and the third groove (23). The second groove (22) is respectively connected to the first groove (21) and the second groove (22) in an "L" shape, and the included angle between the first groove (21) and the third groove (23) is 90°.
4. The left heart assist device demonstration teaching aid of claim 1, wherein: The inner surface of the A box cover (2) is provided with a visceral placement groove (26) and a pump placement groove (27). The heart model (4) is placed in the visceral placement groove (26). The surface of the pump placement groove (27) is provided with a slot (28). The blood pump model (41) is placed in the pump placement groove (27) and the intubation tube (42) is inserted into the slot (28). The pump placement groove (27) is opened on the side of the visceral placement groove (26).
5. The left heart assist device demonstration teaching aid of claim 1, wherein: The inner surface of the B box cover (3) is provided with several bags (31). Several electric wires (56) are respectively placed in several bags (31).
6. The left heart assist device demonstration teaching aid of claim 5, wherein: The bag (31) has a bag mouth, and the bag mouth is provided with a flap (32). The flap (32) is fixedly adhered to the inner surface of the B box cover (3) through a magic sticker.
7. The left heart assist device demonstration teaching aid of claim 1, wherein: The side of the B box cover (3) is provided with a retractable movable plate (33).
8. The left heart assist device demonstration teaching aid of claim 1, wherein: The box (1) is externally provided with a shoulder strap (12) for suspending the box (1).