An ophthalmic surgery simulation training device combined with virtual reality technology

Abstract

The application discloses a kind of ophthalmic surgery simulation training devices combined with virtual reality technology including operating platform and head-mounted display, the operating platform is simultaneously connected with support mechanism and virtual instrument simulation mechanism, and simulation sensing mechanism is arranged on support mechanism;Virtual instrument simulation mechanism includes first handle and second handle, and first handle and second handle are hinged to each other, one end of first handle is connected with first tool bit, and the same end of second handle is connected with second tool bit, first tool bit and second tool bit are mutually clamped, and the center position of first tool bit and second tool bit is respectively provided with first VR positioner, the bottom end outer wall of second tool bit is simultaneously fixedly connected with hook head and electric telescopic rod, and the output end of electric telescopic rod is connected with second VR positioner;The ophthalmic surgery simulation training device combined with virtual reality technology disclosed in the application has certain deformation diversity, can simulate a variety of instrument forms, and further optimizes the effect of simulation reality degree.

Description

Technical Field

[0001] This invention relates to the field of ophthalmic surgery simulation training technology, and more particularly to an ophthalmic surgery simulation training device that combines virtual reality technology. Background Technology

[0002] Virtual reality (VR) technology, also known as virtual environment or virtual reality technology, is a new and practical technology that emerged in the 20th century. VR technology encompasses computer science, electronic information, and simulation technology. Its basic implementation relies primarily on computer technology, utilizing and integrating the latest advancements in 3D graphics, multimedia, simulation, display, and server technologies. With the help of computers and other equipment, it creates a realistic 3D virtual world that provides a multi-sensory experience, including visual, tactile, and olfactory sensations, giving the user a sense of immersion.

[0003] Virtual reality technology has a wide range of applications, including in the medical field, where it is mostly used to simulate diseases and train doctors. However, the handles of typical virtual reality surgical simulation devices are mostly single cylindrical shapes, directly simulating the use of multiple surgical instruments. As a result, when using simulation devices for surgical training, the instrument operation is relatively simple, relying solely on gripping the handles for surgical procedures, leading to insufficient realism in the simulation training. Summary of the Invention

[0004] This invention discloses an ophthalmic surgical simulation training device that combines virtual reality technology, aiming to solve the technical problem that when using a simulation device for surgical simulation training, the instrument operation is relatively simple, and the surgical operation is only performed by gripping the handle, resulting in insufficient realism of the simulation training.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ophthalmic surgery simulation training device combining virtual reality technology includes an operating table and a head-mounted display. The operating table is simultaneously connected to a support mechanism and a virtual instrument simulation mechanism, and the support mechanism is equipped with a simulation sensing mechanism.

[0007] The virtual instrument simulation mechanism includes a first tool holder and a second tool holder, which are hinged to each other. One end of the first tool holder is connected to a first cutting head, and the same end of the second tool holder is connected to a second cutting head. The first cutting head and the second cutting head are interlocked with each other. A first VR locator is set at the center of the first cutting head and the second cutting head respectively. A hook and an electric telescopic rod are fixedly connected to the bottom outer wall of the second cutting head, and the output end of the electric telescopic rod is connected to the second VR locator.

[0008] Electromagnets are respectively installed on the inner walls of the opposite sides of the first and second tool holders, and trapezoidal support housings are respectively connected to the inner walls of the opposite sides of the first and second tool holders. First electric sliding grooves are respectively installed on the inner walls of the opposite sides of the two trapezoidal support housings. A first electric slider is movably connected in each first electric sliding groove. Inclined support plates are respectively connected to the outer walls of the opposite sides of the two first electric sliders. Multiple telescopic tubes are connected between the two inclined support plates, and springs are sleeved on the outside of the multiple telescopic tubes. One end of the spring is fixedly connected to the outer wall of one side of one of the inclined support plates.

[0009] By incorporating a virtual instrument simulation mechanism, the system simulates the operation of instruments. When two electromagnets are energized and tightly attracted, the first and second handles are combined, simulating the hook used in ophthalmic surgery. The second VR locator is then used for positioning. When the electromagnets are de-energized, allowing the first and second handles to open and close freely, scissor-like instruments can be simulated, simultaneously positioned by the first VR locator. If the first electric slider moves along the first electric slide groove at this time, it retracts the multi-section telescopic tube, simultaneously compressing the spring. The resistance provided by the spring simulates forceps-like instruments. This structure allows for the simulation of different types of instruments using the same mechanism, exhibiting a certain degree of deformation diversity and further optimizing the realism of the simulation.

[0010] In a preferred embodiment, a display screen is connected to one side of the operating table, and a control console is connected to the other side of the operating table. A joystick is provided on the control console and is used to control a support mechanism. The support mechanism includes a second electric slide rail, which is fixed to the operating table. A second electric slider is movably connected within the second electric slide rail. A base is fixedly connected to one side of the second electric slider, and a turntable is movably connected to the top of the base. A support plate is fixedly connected to the center of the top of the turntable via a strut. An analog sensing mechanism is mounted on the support plate.

[0011] By incorporating a support mechanism, the physical movement of the training model can be directly controlled by a joystick, thereby adaptively altering the images displayed on the head-mounted display and screen, facilitating the observation of virtual images at different locations during the simulation process.

[0012] In a preferred embodiment, the simulated sensing mechanism includes a positioning sphere, and an eyelid simulation sleeve is movably fitted onto the positioning sphere. The eyelid simulation sleeve is provided with simulated eyelashes. The bottom end of the positioning sphere is connected to a support via a hinge seat, and the support is fixed to the top of a support plate. A large gear is fixedly connected to one side of the outer wall of the hinge seat via a support shaft. A small gear is movably meshed with the outer wall of the large gear. A stepper motor is fixedly connected to one side of the outer wall of the small gear. Bearing seats are simultaneously connected to one side of both the large gear and the small gear. A support platform is fixedly connected to the top of the support plate, and the bearing seats are fixed to the bottom end of the support platform. A silicone cover is connected to the top of the support plate, and the silicone cover covers the support platform and the eyelid simulation sleeve.

[0013] By incorporating a simulation sensing mechanism, which includes a positioning ball, an eyelid simulation sleeve, and simulated eyelashes, the system can simulate the state of the eyeball, enhancing the realism of the training. Simultaneously, by moving the positioning ball within the eyelid simulation sleeve, the movement of the positioning ball can simulate eyeball movement and tremors during surgery, thereby enabling training on the user's reaction level under special circumstances.

[0014] As described above, an ophthalmic surgical simulation training device combining virtual reality technology includes an operating table and a head-mounted display. The operating table is simultaneously connected to a support mechanism and a virtual instrument simulation mechanism, and the support mechanism is equipped with a simulation sensing mechanism. The virtual instrument simulation mechanism includes a first blade handle and a second blade handle, which are hinged together. One end of the first blade handle is connected to a first blade head, and the same end of the second blade handle is connected to a second blade head. The first and second blade heads are interlocked, and a first VR locator is respectively positioned at the center of the first and second blade heads. A hook and an electric actuator are simultaneously fixedly connected to the bottom outer wall of the second blade head. The device includes a telescopic rod, with its output end connected to a second VR locator. Electromagnets are installed on the inner walls of opposite sides of the first and second blade handles, and trapezoidal support housings are connected to these inner walls. First electric sliding grooves are installed on the inner walls of opposite sides of the two trapezoidal support housings, and a first electric slider is movably connected within each first electric sliding groove. Inclined support plates are connected to the outer walls of opposite sides of the two first electric sliders. Multiple telescopic tubes are connected between the two inclined support plates, and springs are fitted around the outside of each telescopic tube. One end of each spring is fixedly connected to the outer wall of one of the inclined support plates. This invention provides an ophthalmic surgery simulation training device combining virtual reality technology, which exhibits a certain degree of deformation diversity, further optimizing the simulation's realism. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an ophthalmic surgery simulation training device that combines virtual reality technology, as proposed in this invention.

[0016] Figure 2 This is a schematic diagram of the support structure of an ophthalmic surgery simulation training device that combines virtual reality technology, as proposed in this invention.

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the simulation sensing mechanism of an ophthalmic surgery simulation training device that combines virtual reality technology, as proposed in this invention.

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the virtual instrument simulation mechanism of an ophthalmic surgery simulation training device that combines virtual reality technology, as proposed in this invention.

[0019] Figure 5 This is a cross-sectional view of the virtual instrument simulation mechanism of an ophthalmic surgery simulation training device that combines virtual reality technology, as proposed in this invention.

[0020] In the diagram: 1. Head-mounted display; 2. Control panel; 3. Virtual instrument simulation mechanism; 4. Support mechanism; 5. Simulation sensing mechanism; 6. Display screen; 7. Control console; 8. Joystick; 301. First tool holder; 302. Trapezoidal support housing; 303. First cutting head; 304. First VR positioner; 305. Second cutting head; 306. Hook head; 307. Electric telescopic rod; 308. Second VR positioner; 309. Inclined support plate; 310. Multi-section telescopic tube; 311. Spring; 312. Electromagnet; 31 3. First electric slider; 314. First electric slide rail; 315. Second tool holder; 401. Second electric slide rail; 402. Second electric slider; 403. Support plate; 404. Support rod; 405. Turntable; 406. Base; 501. Positioning ball; 502. Eyelid simulation sleeve; 503. Hinge seat; 504. Support; 505. Support platform; 506. Silicone cover; 507. Stepper motor; 508. Bearing seat; 509. Small gear; 510. Large gear; 511. Support shaft; 512. Simulated eyelash. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] The ophthalmic surgery simulation training device disclosed in this invention, which combines virtual reality technology, is mainly used in ophthalmic surgery simulation training scenarios.

[0023] Reference Figure 1 , Figure 4-5An ophthalmic surgical simulation training device combining virtual reality technology includes an operating table 2 and a head-mounted display 1. A support mechanism 4 and a virtual instrument simulation mechanism 3 are simultaneously connected to the operating table 2, and a simulation sensing mechanism 5 is provided on the support mechanism 4. The virtual instrument simulation mechanism 3 includes a first scalpel handle 301 and a second scalpel handle 315, which are hinged together. One end of the first scalpel handle 301 is connected to a first scalpel head 303, and the same end of the second scalpel handle 315 is connected to a second scalpel head 305. The first scalpel head 303 and the second scalpel head 305 are interlocked. The second cutter head 305 has a first VR positioner 304 at its center. A hook head 306 and an electric telescopic rod 307 are fixedly connected to the bottom outer wall of the second cutter head 305, and the output end of the electric telescopic rod 307 is connected to a second VR positioner 308. Electromagnets 312 are respectively installed on the inner walls of opposite sides of the first cutter handle 301 and the second cutter handle 315. Trapezoidal support housings 302 are respectively connected to the inner walls of opposite sides of the first cutter handle 301 and the second cutter handle 315. First electric sliding grooves 314 are respectively installed on the inner walls of opposite sides of the two trapezoidal support housings 302. Each first electric sliding groove 314... The device is internally connected to a first electric slider 313. Two inclined support plates 309 are connected to opposite outer walls of the two first electric sliders 313. Multiple telescopic tubes 310 are connected between the two inclined support plates 309, and springs 311 are sleeved on the outside of each telescopic tube 310. One end of each spring 311 is fixedly connected to one outer wall of one of the inclined support plates 309. The device is operated via a virtual instrument simulation mechanism 3. When the two electromagnets 312 are energized and tightly attracted, the first handle 301 and the second handle 315 are combined. When used in conjunction with the hook head 306, this can simulate the operation of an ophthalmic surgical device. The hook-shaped instrument is used. At this time, the second VR positioner 308 is switched for positioning. When the electromagnet 312 is de-energized, the first handle 301 and the second handle 315 can be opened and closed at will, which can simulate scissor-like instruments. At the same time, the first VR positioner 304 is used for positioning. If the first electric slider 313 is moved along the first electric slide groove 314 at this time, it will drive the multi-section telescopic tube 310 to retract, and simultaneously compress the spring 311. Through the resistance provided by the spring 311, tweezer-like instruments can be simulated. Under this structure, different types of instruments can be simulated with the same structure, which has a certain degree of deformation diversity and further optimizes the simulation realism.

[0024] Reference Figure 1 In a preferred embodiment, a display screen 6 is connected to one side of the control panel 2, and a control console 7 is connected to the other side of the control panel 2. A rocker arm 8 is provided on the control console 7, and the rocker arm 8 is used to control the support mechanism 4.

[0025] Reference Figure 2In a preferred embodiment, the support mechanism 4 includes a second electric slide 401, which is fixed on the operating table 2, and a second electric slider 402 is movably connected inside the second electric slide 401.

[0026] Reference Figure 2 In a preferred embodiment, a base 406 is fixedly connected to one side of the second electric slider 402, and a turntable 405 is movably connected to the top of the base 406. A support plate 403 is fixedly connected to the center of the top of the turntable 405 via a support rod 404. The simulation sensing mechanism 5 is mounted on the support plate 403. A support mechanism 4 is provided. In the support mechanism 4, the second electric slider 402 moves within the second electric slide groove 401, causing the base 406 to move further or closer to the user along the second electric slide groove 401. Then, the turntable 405 drives the simulation sensing mechanism 5 to rotate at the top of the base 406. Thus, the physical movement can be directly controlled by the joystick 8 to drive the positioning movement of the training model, thereby adaptively changing the images displayed on the head-mounted display 1 and the display screen 6, facilitating the observation of virtual images at different positions during the simulation process.

[0027] Reference Figure 3 In a preferred embodiment, the simulation sensing mechanism 5 includes a positioning ball 501, and an eyelid simulation sleeve 502 is movably sleeved on the positioning ball 501, with simulated eyelashes 512 provided on the eyelid simulation sleeve 502.

[0028] Reference Figure 3 In a preferred embodiment, the bottom end of the positioning ball 501 is connected to a support 504 via a hinge seat 503, and the support 504 is fixed to the top of the support plate 403. A large gear 510 is fixedly connected to one side of the outer wall of the hinge seat 503 via a support shaft 511.

[0029] Reference Figure 3 In a preferred embodiment, a small gear 509 is movably meshed with the outer wall of the large gear 510, and a stepper motor 507 is fixedly connected to one side of the outer wall of the small gear 509. A bearing seat 508 is connected to one side of both the large gear 510 and the small gear 509.

[0030] Reference Figure 3In a preferred embodiment, a support platform 505 is fixedly connected to the top of the support plate 403, and a bearing seat 508 is fixed to the bottom of the support platform 505. A silicone cover 506 is connected to the top of the support plate 403, and the silicone cover 506 covers the support platform 505 and the eyelid simulation sleeve 502. In the simulation sensing mechanism 5, the eyeball state can be simulated by setting the positioning ball 501, the eyelid simulation sleeve 502 and the simulated eyelashes 512, thereby improving the realism of the training. At the same time, the stepper motor 507 drives the pinion 509 to rotate, and the pinion 509 transmits to the large gear 510 to increase the torque, thereby driving the positioning ball 501 to move inside the eyelid simulation sleeve 502. By increasing the torque, the accuracy requirement of the stepper motor 507 can be reduced. Moving the positioning ball 501 can simulate the movement of the eyeball and tremor during surgery, thereby completing the training of the user's reaction level under special circumstances.

[0031] Working Principle: In use, the virtual instrument simulation mechanism 3 simulates the operation of instruments. When the two electromagnets 312 are energized and tightly attracted, the first handle 301 and the second handle 315 are in a combined state. Combined with the hook head 306, it can simulate the hook instrument used in ophthalmic surgery. At this time, the second VR positioner 308 is switched for positioning. When the electromagnets 312 are de-energized, allowing the first handle 301 and the second handle 315 to open and close freely, it can simulate scissor-like instruments. Simultaneously, it is positioned by the first VR positioner 304. If the first electric slider 313 moves along the first electric slide groove 314 at this time, it drives the multi-section telescopic tube 310 to retract, and simultaneously compresses the spring 311. Through the resistance provided by the spring 311, it can simulate forceps-like instruments. Under this structure, different types of instruments can be simulated using the same structure, with a certain degree of deformation diversity, further optimizing the simulation realism. In addition, in the support mechanism 4, the second electric slider 402 moves within the second electric slide groove 401, driving... The base 406 moves closer or further away from the user along the second electric slide 401, and then the turntable 405 drives the simulation sensing mechanism 5 to rotate at the top of the base 406. Thus, the physical movement of the training model can be directly controlled by the joystick 8, thereby adaptively changing the images displayed on the head-mounted display 1 and the display screen 6, facilitating the observation of virtual images at different positions during the simulation. In the simulation sensing mechanism 5, the positioning ball 501, the eyelid simulation sleeve 502, and the simulated eyelashes 512 can simulate the state of the eyeball, improving the realism of the training. At the same time, the stepper motor 507 drives the small gear 509 to rotate, and the small gear 509 transmits to the large gear 510, increasing the torque and moving the positioning ball 501 within the eyelid simulation sleeve 502. By increasing the torque, the accuracy requirement of the stepper motor 507 can be reduced. Moving the positioning ball 501 can simulate eyeball movement and tremor during surgery, thereby completing the training of the user's reaction level under special circumstances.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ophthalmic surgical simulation training device combining virtual reality technology, comprising an operating table (2) and a head-mounted display (1), characterized in that, The operating console (2) is simultaneously connected to a support mechanism (4) and a virtual instrument simulation mechanism (3), and the support mechanism (4) is equipped with a simulation sensing mechanism (5). The virtual instrument simulation mechanism (3) includes a first handle (301) and a second handle (315), and the first handle (301) and the second handle (315) are hinged to each other. One end of the first handle (301) is connected to a first cutter head (303), and the same end of the second handle (315) is connected to a second cutter head (305). The first cutter head (303) and the second cutter head (305) are interlocked with each other, and a first VR locator (304) is respectively set at the center of the first cutter head (303) and the second cutter head (305). The bottom outer wall of the second cutter head (305) is simultaneously fixedly connected to a hook head (306) and an electric telescopic rod (307), and the output end of the electric telescopic rod (307) is connected to a second VR locator (308). Electromagnets (312) are respectively provided on the inner walls of the opposite sides of the first tool holder (301) and the second tool holder (315), and trapezoidal support housings (302) are respectively connected to the inner walls of the opposite sides of the first tool holder (301) and the second tool holder (315). First electric slides (314) are respectively installed on the inner walls of the opposite sides of the two trapezoidal support housings (302). First electric sliders (313) are movably connected in each first electric slide (314). Inclined support plates (309) are respectively connected to the outer walls of the opposite sides of the two first electric sliders (313). Multiple telescopic tubes (310) are connected between the two inclined support plates (309). Springs (311) are sleeved on the outside of the multiple telescopic tubes (310). One end of the spring (311) is fixedly connected to the outer wall of one of the inclined support plates (309). The virtual instrument simulation mechanism (3) simulates the operation of instruments. When the two electromagnets (312) are energized and tightly attracted, the first handle (301) and the second handle (315) are in a combined state and used in conjunction with the hook (306) to simulate the hook-like instruments used in ophthalmic surgery. At this time, the second VR locator (308) is switched for positioning. When the electromagnet (312) is de-energized, the first handle (301) and the second handle (315) are opened and closed to simulate scissor-like instruments. At the same time, the first VR locator (304) positions the first electric slider (313) to move along the first electric slide groove (314), driving the multi-section telescopic tube (310) to retract, and simultaneously compressing the spring (311). Through the resistance provided by the spring (311), the forceps-like instruments are simulated.

2. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 1, characterized in that, The control panel (2) is connected to a display screen (6) on one side and to a control console (7) on the other side. A rocker arm (8) is provided on the control console (7), and the rocker arm (8) is used to control the support mechanism (4).

3. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 2, characterized in that, The support mechanism (4) includes a second electric slide (401), and the second electric slide (401) is fixed on the operating table (2). A second electric slider (402) is movably connected inside the second electric slide (401).

4. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 3, characterized in that, The second electric slider (402) is fixedly connected to a base (406) on one side, and a turntable (405) is movably connected to the top of the base (406). A support plate (403) is fixedly connected to the center of the top of the turntable (405) through a support rod (404). The analog sensing mechanism (5) is installed on the support plate (403).

5. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 4, characterized in that, The simulated sensing mechanism (5) includes a positioning ball (501), and an eyelid simulation sleeve (502) is movably sleeved on the positioning ball (501), and simulated eyelashes (512) are provided on the eyelid simulation sleeve (502).

6. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 5, characterized in that, The bottom end of the positioning ball (501) is connected to a support (504) via a hinge seat (503), and the support (504) is fixed to the top of the support plate (403). A large gear (510) is fixedly connected to one side of the outer wall of the hinge seat (503) via a support shaft (511).

7. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 6, characterized in that, The outer wall of the large gear (510) is movably meshed with a small gear (509), and a stepper motor (507) is fixedly connected to one side of the outer wall of the small gear (509). A bearing seat (508) is connected to one side of both the large gear (510) and the small gear (509).

8. The ophthalmic surgery simulation training device combining virtual reality technology according to claim 7, characterized in that, The top of the support plate (403) is fixedly connected to a support platform (505), and the bearing seat (508) is fixed to the bottom of the support platform (505). The top of the support plate (403) is connected to a silicone cover (506), and the silicone cover (506) covers the support platform (505) and the eyelid simulation sleeve (502).

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