Neuroendoscope simulation training device

Abstract

The invention relates to the technical field of medical training instruments, in particular to a neuroendoscope simulation training device which comprises a base, a display screen and a polishing rod, a plurality of air bags are arranged on the inner side of the base and used for extruding a skull model, and an air pressure sensing control mechanism is arranged between the base and the corresponding air bags and used for controlling the pressure of a trainee when the strength of the trainee reaches the pressure in the skull. According to the neuroendoscope simulation training device, the air bag on the inner side of the base is matched with the air pressure sensing control mechanism, when the operation force of a trainee reaches the preset intracranial pressure, the air bag can be extruded to promote a piston disc and a spline shaft to act, and the master control device triggers the alarm; meanwhile, the electromagnetic valve can adjust the air pressure of the pressure reduction cavity, simulate a real intracranial physiological pressure environment, help trainees to train operation skills within a safe pressure range, restore core scenes of pressure sensing and force adjusting in clinic, and avoid disjunction of training effects and clinical requirements.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of medical training devices, in particular to a neuroendoscope simulation training device. BACKGROUND

[0002] Neuroendoscopic surgery has become a key technology in the field of intracranial tumor resection, hydrocephalus drainage and cerebrovascular disease treatment due to its core advantages of fine operation under direct vision, small trauma and fast postoperative recovery. The operation precision is directly related to the safety of the operation and the prognosis of the patient. However, the technology requires high skills in endoscope operation, spatial positioning and tissue recognition of the operator, and the traditional training mode has been difficult to adapt to the clinical needs, thus promoting the technical evolution of the simulation training device.

[0003] In the simulation training of the head model, the existing device has low control precision of the operation force, and the physiological pressure environment in the real intracranial cavity is not simulated. When the trainee practices, the simulation brain tissue is easily damaged due to improper force control, and the trainee cannot train the key clinical skills of operation within the safe pressure range due to the lack of intracranial pressure feedback. The core scene of perceiving the pressure and adjusting the force in the real operation cannot be restored, so that the training effect is disconnected with the clinical needs.

[0004] In the head bone polishing training, the existing device lacks a stable constraint structure for the drill feeding mechanism, and the trainee is prone to problems such as fast and slow feeding speed and uneven force when operating. In addition, the device has no reminding mechanism for the local polishing time or depth, and the trainee is prone to long-term retention of the drill in the same area due to the deviation of the operation concentration, which causes excessive polishing of the simulation head bone. Therefore, we propose a neuroendoscope simulation training device. SUMMARY

[0005] One of the technical problems to be solved by the present application is how to design a neuroendoscope simulation training device that can realize real-time sensing of the internal pressure change of the head model and monitoring of the stability of the head bone model polishing process.

[0006] To solve the above technical problems, the embodiment of the present application provides a neuroendoscope simulation training device, which comprises a base, a display screen and a polishing rod. The inner side of the base is provided with a plurality of air bags for extruding the head model. A gas pressure sensing mechanism is arranged between the base and the corresponding air bag for triggering an alarm when the trainee's force reaches the intracranial pressure of the head model. A polishing training mechanism is arranged between the base and the polishing rod to provide resistance for the trainee when using and be resettable for the trainee to perceive.

[0007] The air bag is internally provided with a sensing cavity and a pressure relief cavity.

[0008] In some embodiments, the air pressure sensing control mechanism comprises a support plate arranged on the top of the base, the side of the air bag is provided with a plurality of mounting columns connected with the support plate, the outer side of the air bag is provided with two electromagnetic valves, and the two electromagnetic valves are communicated with the pressure reduction cavity.

[0009] In some embodiments, the inner side of the air bag is provided with a sleeve communicated with the pressure reduction cavity, the end of the sleeve is provided with a gas cylinder, the inner side of the gas cylinder is communicated with the induction cavity, and the outer side of the gas cylinder is provided with a through slot, so that the pressure reduction cavity and the induction cavity are communicated through the through slot.

[0010] In some embodiments, the inner side of the gas cylinder is movably provided with a piston disc, the end of the piston disc is provided with a spline shaft, the end of the gas cylinder is provided with a spline groove, the spline shaft is movably arranged in the inner side of the spline groove, and the outer side of the spline shaft is sleeved with spring two connected with the gas cylinder.

[0011] In some embodiments, the inner side of the sleeve is movably provided with an electromagnet two connected with the spline shaft, and the end of the sleeve is provided with a master control device, the master control device is provided with an electromagnet one on the inner side of the sleeve, and the electromagnet one is oppositely arranged with the electromagnet two.

[0012] In some embodiments, the polishing training mechanism comprises a support rod arranged on the top of the base, the side of the support rod is provided with a connecting column, the inner side of the connecting column is movably provided with a movable ball, and the outer side of the movable ball is provided with a straight rod.

[0013] In some embodiments, the end of the straight rod is provided with a slotted plate, the inner side of the slotted plate is movably provided with a sliding block, and the side of the sliding block is provided with a sleeve ring sleeved on the outer side of the polishing rod.

[0014] In some embodiments, the inner side of the slotted plate is rotatably provided with a screw rod, one end of the screw rod penetrates through the slotted plate and is provided with a knob, the outer side of the screw rod is threadedly provided with a threaded groove plate, the outer side of the threaded groove plate is movably arranged on the inner side of the slotted plate, the side of the threaded groove plate is provided with a movable ring movably sleeved on the outer side of the polishing rod, and a spring one sleeved on the outer side of the polishing rod is arranged between the sleeve ring and the movable ring.

[0015] The present application has at least the following advantages:

[0016] 1. By means of the air bag in the inner side of the base cooperating with the air pressure sensing control mechanism, when the operation strength of the trainee reaches the preset intracranial pressure, the air bag is squeezed to drive the piston disc and the spline shaft to move, the master control device triggers an alarm, and the electromagnetic valve can adjust the air pressure of the pressure reduction cavity, so that a real intracranial physiological pressure environment is simulated to help the trainee train the operation skill within the safe pressure range, restore the core scene of perceiving pressure and adjusting strength in the clinic, and avoid the disconnection between the training effect and the clinical demand.

[0017] 2. The straight rod drives the flexible polishing rod by the movable ball of the polishing training mechanism, the spring between the sleeve ring and the moving ring can provide operating resistance and reset after the external force is removed, which is convenient for the students to perceive the operation feedback, the screw rod adjusts the position of the threaded groove plate to stably control the polishing rod feeding, avoid the feeding speed being fast or slow, prevent the drill from staying in the same area for a long time, help the students to develop the operation habit of uniform polishing, and reduce the excessive damage of the simulated skull, and prolong the repeated use cycle of the training equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the application;

[0019] Figure 2 It is an exploded structural schematic diagram of the air bag, mounting column and support plate of the application;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the air bag of the application;

[0021] Figure 4 It is an exploded structural schematic diagram of the air cylinder, electromagnet one, electromagnet two and main control device of the application;

[0022] Figure 5 It is an exploded structural schematic diagram of the air cylinder, piston disc and electromagnet one of the application;

[0023] Figure 6 It is a structural schematic diagram of the polishing rod and the polishing training mechanism of the application;

[0024] Figure 7 It is a partial structural schematic diagram of the support rod, connecting column, sleeve ring and moving ring of the application;

[0025] Figure 8 It is an exploded structural schematic diagram of the sleeve ring, moving ring, movable ball and screw rod of the application.

[0026] In the figure: 1, base; 2, display screen; 3, polishing rod; 4, polishing training mechanism; 41, support rod; 42, connecting column; 43, sleeve ring; 44, moving ring; 45, straight rod; 46, movable ball; 47, spring one; 48, slotted plate; 49, screw rod; 410, sliding block; 411, threaded groove plate; 412, knob; 5, air bag; 51, induction cavity; 52, pressure reduction cavity; 6, air pressure sensing control mechanism; 61, support plate; 62, mounting column; 63, electromagnetic valve; 64, air cylinder; 65, sleeve; 66, through groove; 67, main control device; 68, electromagnet one; 69, electromagnet two; 610, spring two; 611, spline groove; 612, piston disc; 613, spline shaft. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0028] Embodiment one: please refer to Figures 1-8 The present application provides a technical solution: a neuroendoscope simulation training device, comprising a base 1, a display screen 2 and a polishing rod 3, a plurality of air bags 5 are arranged on the inner side of the base 1 for extruding a skull model, an air pressure sensing control mechanism 6 is arranged between the base 1 and the corresponding air bag 5 for triggering an alarm when the student's force reaches the intracranial pressure, a polishing training mechanism 4 is arranged between the base 1 and the polishing rod 3 to provide resistance for the student when using, and can be reset to facilitate the student to perceive that the air pressure sensing control mechanism 6 is arranged between the base 1 and the corresponding air bag 5, which can monitor the force applied on the air bag 5 by the student in real time, and when the force reaches the preset pressure value in the simulated intracranial, an alarm can be triggered to remind the student, and the polishing training mechanism 4 is arranged between the base 1 and the polishing rod 3, which can provide moderate resistance when the student uses the polishing rod 3, simulate the real polishing feeling, and automatically reset after the external force is removed, facilitating the student to clearly perceive the operation feedback and helping to develop standard operation force and rhythm.

[0029] The air bag 5 is internally provided with a sensing cavity 51 and a pressure relief cavity 52, and the air bag 5 is also internally provided with a sensing cavity 51 and a pressure relief cavity 52, the sensing cavity 51 is mainly used for sensing pressure change, and the pressure relief cavity 52 cooperates with the air pressure adjusting part to maintain stable pressure, and together provides structural support for simulating the real intracranial pressure environment.

[0030] The air pressure sensing control mechanism 6 comprises a support plate 61 arranged on the top of the base 1, a plurality of mounting columns 62 connected with the support plate 61 are arranged on the side of the air bag 5, two electromagnetic valves 63 are arranged on the outside of the air bag 5, the two electromagnetic valves 63 are both in communication with the pressure relief cavity 52, two electromagnetic valves 63 are also installed on the outside of the air bag 5, the two electromagnetic valves 63 are both in communication with the pressure relief cavity 52 in the air bag 5 through the air pipe, the electromagnetic valve 63 is mainly used for controlling the inflation and deflation of the pressure relief cavity 52, and a proper amount of gas can be injected into the pressure relief cavity 52 through the electromagnetic valve 63 before training to adjust the initial pressure of the air bag 5, so as to match the intracranial pressure simulation requirement in different training scenes.

[0031] The inner side of the air bag 5 is provided with a sleeve 65 connected with the decompression cavity 52, the end of the sleeve 65 is provided with a gas cylinder 64, the inner side of the gas cylinder 64 is connected with the induction cavity 51, the outer side of the gas cylinder 64 is provided with a through slot 66, the through slot 66 connects the decompression cavity 52 and the induction cavity 51, the inner side of the gas cylinder 64 is connected with the induction cavity 51 through the gas channel, forming a gas circulation channel, the outer side of the gas cylinder 64 is provided with a through slot 66, the through slot 66 penetrates the side wall of the gas cylinder 64, when the components in the gas cylinder 64 act, the through slot 66 can realize the gas circulation between the decompression cavity 52 and the induction cavity 51.

[0032] The inner side of the gas cylinder 64 movably provided with a piston disc 612, the end of the piston disc 612 is provided with a spline shaft 613, the end of the gas cylinder 64 is provided with a spline groove 611, the spline shaft 613 is movably arranged in the inner side of the spline groove 611, the outer side of the spline shaft 613 is sleeved with a spring 610 connected with the gas cylinder 64, one end of the piston disc 612 is fixedly connected with the spline shaft 613, the end of the gas cylinder 64 close to the sleeve 65 is provided with a spline groove 611 matched with the spline shaft 613, the end of the spline shaft 613 away from the piston disc 612 is inserted into the spline groove 611, the spline groove 611 can limit the rotation of the spline shaft 613, ensuring that the piston disc 612 only moves in the axial direction, avoiding the sealing failure caused by the rotation of the piston disc 612. The outer side of the spline shaft 613 is sleeved with the spring 610, one end of the spring 610 is fixedly connected with the end of the gas cylinder 64 close to the spline groove 611, and the other end is in contact with the stepped surface of the spline shaft 613.

[0033] The inner side of the sleeve 65 movably provided with an electromagnet 69 connected with the spline shaft 613, the end of the sleeve 65 is provided with a main control device 67, the main control device 67 is provided with an electromagnet 68 on the inner side of the sleeve 65, the electromagnet 68 is oppositely arranged with the electromagnet 69, before training, the main control device 67 supplies power to the electromagnet 68, adjusts the repulsive force generated thereby, the repulsive force drives the electromagnet 69 to move away from the electromagnet 68, and then drives the spline shaft 613 and the piston disc 612 to act, adjusting the gas pressure in the gas cylinder 64; when the student's operating force is too large, the pressure of the induction cavity 51 rises, driving the piston disc 612 and the spline shaft 613 to move towards the electromagnet 68, making the electromagnet 69 close to the electromagnet 68, at this time, the main control device 67 detects the distance change between the two, triggers an alarm after receiving the signal, timely reminding the student to adjust the force, effectively solving the problem of insufficient force control accuracy.

[0034] Embodiment two: please refer to Figures 6-8The application provides a technical scheme: the polishing training mechanism 4 comprises a supporting rod 41 arranged on the top of the base 1, a connecting column 42 arranged on the side of the supporting rod 41, a movable ball 46 movably arranged on the inner side of the connecting column 42, a straight rod 45 arranged on the outer side of the movable ball 46, a spherical groove formed in the inner side of the connecting column 42, and the movable ball 46 is arranged in the spherical groove and is in clearance fit with the groove and can rotate in multiple directions in the groove.

[0035] The end of the straight rod 45 is provided with a slotted plate 48, the inner side of the slotted plate 48 is movably provided with a sliding block 410, the side of the sliding block 410 is provided with a sleeve ring 43 sleeved on the outer side of the polishing rod 3, the side of the sliding block 410 is fixedly connected with the sleeve ring 43, the sleeve ring 43 is an annular structure and is tightly sleeved on the outer side of the polishing rod 3, when the student pushes the polishing rod 3 to polish, the polishing rod 3 drives the sleeve ring 43 to move synchronously, the sleeve ring 43 drives the sliding block 410 to slide in the sliding groove of the slotted plate 48, the sliding groove can limit the movement direction of the sliding block 410, thereby limiting the feeding direction of the polishing rod 3, avoiding the transverse deviation of the polishing rod 3 in the feeding process, and ensuring the stability of the feeding path.

[0036] The inner side of the slotted plate 48 is rotatably provided with a screw rod 49, one end of the screw rod 49 penetrates through the slotted plate 48 and is provided with a knob 412, the outer side of the screw rod 49 is threadedly provided with a threaded groove plate 411, the outer side of the threaded groove plate 411 is movably arranged on the inner side of the slotted plate 48, the side of the threaded groove plate 411 is movably provided with a moving ring 44 movably arranged on the outer side of the polishing rod 3, the sleeve ring 43 and the moving ring 44 are provided with a spring 47 movably arranged on the outer side of the polishing rod 3.

[0037] The student can adjust the position of the threaded groove plate 411 by rotating the knob 412, change the distance between the moving ring 44 and the sleeve ring 43, thereby adjusting the compression amount of the spring 47, controlling the resistance provided by the spring 47, adapting to the hand feeling requirements of different students, after polishing, the spring 47 pushes the sleeve ring 43 and the polishing rod 3 back through the elastic force, avoiding the over-polishing caused by the long-time stay of the polishing rod 3 in the same area, and helping the student to form the habit of uniform polishing.

[0038] Working principle: when using the device, first put the skull model between the plurality of air bags 5, and then start the main control device 67, the main control device 67 will change the repulsion force of electromagnet one 68, spring two 610 will squeeze electromagnet two 69 close to electromagnet one 68, when electromagnet two 69 is close, the piston disc 612 will pass through the slot 66, so that the air cylinder 64 inside passes through the slot 66 and the pressure reducing cavity 52 is connected, the electromagnetic valve 63 works at this time, the pressure reducing cavity 52 is inflated, electromagnet one 68 starts to repel electromagnet two 69, and squeezes spring two 610, the piston disc 612 moves at this time, pushing the gas in the air cylinder 64 into the induction cavity 51, so that the pressure in the induction cavity 51 changes, when reaching the set value, the skull model can be simulated and trained;

[0039] When the intensity of simulation training is too large, the display screen 2 will be squeezed, so that the gas in the induction cavity 51 is squeezed into the air cylinder 64, the air cylinder 64 will squeeze the piston disc 612, the piston disc 612 will squeeze the electromagnet two 69 through the spline shaft 613, so that the electromagnet two 69 is close to the electromagnet one 68, the main control device 67 will receive the signal of electromagnet one 68, when the squeezing force reaches the set value, the main control device 67 will start the alarm to inform the students of the situation, so that the training can be better;

[0040] When the skull model needs to be polished, put the skull model between the plurality of air bags 5, fill the induction cavity 51 with gas through the start of the main control device 67, so that the air bag 5 clamps the skull model, at this time you can hold the polishing rod 3 to polish the skull model, which will push the polishing rod 3, the polishing rod 3 will drive the outer ring 43 to move, the ring 43 will drive the sliding block 410 to slide in the inside of the slot plate 48, and squeeze the spring one 47, so that the students can slowly and smoothly give in, after completion, the spring one 47 will drive the ring 43 and the polishing rod 3 to reset, avoid the students in a region for a long time polishing, and thus develop bad effects, by rotating the knob 412 to drive the screw rod 49 to rotate, the screw rod 49 will drive the outer threaded groove plate 411 to move, the threaded groove plate 411 is inside the slot plate 48, the threaded groove plate 411 will drive the side moving ring 44 to move, so as to adjust the length of spring one 47, the students can adjust the hand feeling according to this, and it is more comfortable to use.

[0041] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, since the scope of the present application will be limited to the appended claims. It must be noted that, as used in the specification and the appended claims, the singular form "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a plurality of components. Similarly, the words "comprise," "comprises," and "comprising," as well as the words "include," "includes," and "including," when used in this specification and in the following claims, are intended to specify the presence of stated features, regions, integers, steps, operations, elements, or components, but they do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, or groups thereof. Furthermore, these terms do not necessarily denote the presence of anything that can be claimed as new. The meaning of "a," "an," and "the" also includes plural references and plural forms, for example, "a" or "an" entity includes one or more entities.

[0042] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application as defined in the appended claims.

Claims

1. A neuroendoscopic simulation training device, comprising a base (1), a display screen (2), and a grinding rod (3), characterized in that: Multiple airbags (5) are provided on the inner side of the base (1) for squeezing the head model. A pressure sensing and control mechanism (6) is provided between the base (1) and the corresponding airbags (5) for triggering an alarm when the student squeezes the airbags (5) when the pressure reaches the pressure inside the head. A grinding training mechanism (4) is provided between the base (1) and the grinding rod (3) to provide resistance when the student uses it and can be reset so that the student can perceive it. The airbag (5) has a sensing cavity (51) and a decompression cavity (52) inside. The air pressure sensing and control mechanism (6) includes a support plate (61) set on the top of the base (1), and multiple mounting columns (62) connected to the support plate (61) are provided on the side of the airbag (5). Two solenoid valves (63) are provided on the outside of the airbag (5), and both solenoid valves (63) are connected to the pressure reducing chamber (52). The inner side of the airbag (5) is provided with a sleeve (65) that communicates with the decompression chamber (52). An air cylinder (64) is provided at the end of the sleeve (65). The inner side of the air cylinder (64) is connected to the sensing chamber (51). A through groove (66) is provided on the outer side of the air cylinder (64). The decompression chamber (52) and the sensing chamber (51) are connected through the through groove (66).

2. The neuroendoscopic simulation training device according to claim 1, characterized in that: A piston disc (612) is movably disposed on the inner side of the air cylinder (64). A spline shaft (613) is disposed at the end of the piston disc (612). A spline groove (611) is opened at the end of the air cylinder (64). The spline shaft (613) is movably disposed on the inner side of the spline groove (611). A spring (610) connected to the air cylinder (64) is sleeved on the outer side of the spline shaft (613).

3. The neuroendoscopic simulation training device according to claim 2, characterized in that: An electromagnet two (69) connected to a spline shaft (613) is movably disposed on the inner side of the sleeve (65). A main control device (67) is disposed at the end of the sleeve (65). An electromagnet one (68) is disposed on the inner side of the sleeve (65) of the main control device (67). The electromagnet one (68) is disposed opposite to the electromagnet two (69).

4. The neuroendoscopic simulation training device according to claim 1, characterized in that: The polishing training mechanism (4) includes a support rod (41) set on the top of the base (1), a connecting column (42) is provided on the side of the support rod (41), a movable ball (46) is movably provided on the inner side of the connecting column (42), and a straight rod (45) is provided on the outer side of the movable ball (46).

5. The neuroendoscopic simulation training device according to claim 4, characterized in that: The end of the straight rod (45) is provided with a slotted plate (48), and a slider (410) is movably provided on the inner side of the slotted plate (48). A collar (43) sleeved on the outer side of the grinding rod (3) is provided on the side of the slider (410).

6. The neuroendoscopic simulation training device according to claim 5, characterized in that: A screw (49) is rotatably provided on the inner side of the slotted plate (48). One end of the screw (49) passes through the slotted plate (48) and is provided with a knob (412). A threaded groove plate (411) is provided on the outer side of the screw (49). The outer side of the threaded groove plate (411) is movably provided on the inner side of the slotted plate (48). A movable ring (44) is provided on the side of the threaded groove plate (411) and is movably sleeved on the outer side of the grinding rod (3). A spring (47) is provided between the collar (43) and the movable ring (44) and is sleeved on the outer side of the grinding rod (3).

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