阅读说明：本技术 一种虚拟手术训练用三维显示系统 (Three-dimensional display system for virtual surgery training ) 是由 郝爱民 丛宇 赵永涛 于 2020-07-21 设计创作，主要内容包括：本发明涉及医疗设备技术领域,具体涉及一种虚拟手术训练用三维显示系统,包括虚拟仿真显示模块、训练操作模块、主机箱、上支撑台、下支撑台和偏振光眼镜,所述上支撑台固定连接在所述下支撑台的上部,所述上支撑台与下支撑台形成工字型支撑结构,所述上支撑台的上部摆放有所述虚拟仿真显示模块,所述下支撑台的上部前端摆放有所述操作训练模块。本发明通过采用背投方式并配合平面反射镜的反射作用,使得图像位置偏移,增加了观察者三维观察的视觉深度,同时与手部操作配准,达到良好的显示效果；本系统避免了常规单一观看3D影像的方式,利用双机放映影像,在投影仪上安装偏振片形成偏振光使图像分成左右影像。(The invention relates to the technical field of medical equipment, in particular to a three-dimensional display system for virtual surgery training, which comprises a virtual simulation display module, a training operation module, a mainframe box, an upper supporting table, a lower supporting table and polarized glasses, wherein the upper supporting table is fixedly connected to the upper part of the lower supporting table, the upper supporting table and the lower supporting table form an I-shaped supporting structure, the virtual simulation display module is placed on the upper part of the upper supporting table, and the operation training module is placed at the front end of the upper part of the lower supporting table. The invention adopts a rear projection mode and is matched with the reflection action of the plane reflector, so that the image position is deviated, the visual depth of three-dimensional observation of an observer is increased, and meanwhile, the image position is registered with the hand operation, thereby achieving good display effect; the system avoids the conventional mode of singly watching the 3D images, the images are projected by utilizing two projectors, and the polaroids are arranged on the projectors to form polarized light so that the images are divided into left and right images.)

1. A three-dimensional display system for virtual surgery training is characterized in that: including virtual simulation display module, training operation module, mainframe box, last supporting bench, undersetting platform and polarized light glasses, it is in to go up supporting bench fixed connection the upper portion of undersetting platform, it forms I shape bearing structure with the undersetting platform to go up the supporting bench, the upper portion of going up the supporting bench has been put virtual simulation display module, the upper portion front end of undersetting platform has been put operation training module, virtual simulation display module with operation training module sets up relatively from top to bottom in proper order, virtual simulation display module and training operation module all with mainframe box electric connection, polarized light glasses are put on the mesa of going up the supporting bench.

2. The three-dimensional display system for virtual surgery training of claim 1, wherein: the virtual simulation display module comprises a first projection device, a second projection device, a rear projection screen device, a reflector device, a mounting support and adjusting support legs, wherein the mounting support is of a four-rod parallel square frame structure, the first projection device and the second projection device are both mounted at the upper end of the mounting support, the rear projection screen device is mounted in the middle of the mounting support, the reflector device is mounted at the lower part of the mounting support, the rear projection screen device is vertically opposite to the reflector device, and the adjusting support legs are hinged to the rear part of the mounting support.

3. The three-dimensional display system for virtual surgery training of claim 2, wherein: first projection equipment and second projection equipment all include projector, deflection adjusting bracket and polaroid, projector fixed mounting be in on the landing leg of installing support, the deflection adjusting bracket is installed on the landing leg of installing support through rotatory fixed subassembly, the outer end fixed mounting of deflection adjusting bracket has the polaroid, first projection equipment and the parallel symmetry of second projection equipment are installed on the installing support.

4. The three-dimensional display system for virtual surgery training of claim 3, wherein: the rotary fixing assembly of the deflection adjusting frame comprises two deflection mounting plates which are opposite up and down, a semicircular turntable is arranged on the outer side of the deflection mounting plates, an arc-shaped groove hole is formed in the semicircular turntable, a threaded compression post is arranged in the arc-shaped groove hole, and the deflection mounting plates are fixedly compressed on the supporting legs of the mounting support and realize synchronous deflection angle adjustment of the two deflection mounting plates which are opposite up and down through the threaded compression action of the threaded compression post.

5. The three-dimensional display system for virtual surgery training of claim 2, wherein: the rear projection screen device is characterized in that a thread piece extrusion fixing device is arranged at the side edge of the rear projection screen device, and the rear projection screen device is fixedly pressed on the mounting bracket through the thread piece extrusion fixing device.

6. The three-dimensional display system for virtual surgery training of claim 2, wherein: adjust the landing leg including adjusting hinge, first locking Assembly and second locking Assembly, adjust the hinge and be concatenating the connecting rod structure, the both ends of adjusting the hinge all pass through first locking Assembly connects respectively on installing support and regulation landing leg, installing support and regulation landing leg all be equipped with first locking Assembly matched with spout, adjust and be equipped with second locking Assembly on the concatenation joint of hinge, the relative corner of the adjacent two poles of second locking Assembly lockable.

7. The three-dimensional display system for virtual surgery training of claim 2, wherein: the front end of the reflector device is rotatably installed on the mounting support, a reflection angle adjusting assembly is arranged at the rear end of the reflector device, a sliding groove matched with the reflection angle adjusting assembly is formed in the mounting support, and the angle adjusting process of the reflector device is achieved through sliding fit of the reflection angle adjusting assembly in the sliding groove.

8. The three-dimensional display system for virtual surgery training of claim 1, wherein: the training operation module comprises a first force feedback operation device and a second force feedback operation device, the first force feedback operation device and the second force feedback operation device are arranged at intervals in a relative mode, and the training operation module is used for executing a force feedback operation process.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a three-dimensional display system for virtual surgery training.

Background

The virtual reality technology constructs a simulation scene through a VR technology, can be applied to aspects such as games, social contact, science and education, office, medical treatment, sightseeing, driving, entertainment, leisure, sports, video playing and the like, and the scenes and characters seen by the virtual reality are all virtual, and people's consciousness is substituted into a virtual world. With the continuous development of medical technology informatization, a virtual reality technology is also gradually applied to the medical field, the technical level of medical care personnel and students needs to be further improved, and the medical care personnel and the students need to continuously research academic knowledge, including the use and the explanation of medical instruments, the diagnosis and the treatment of various diseases, the study and the research of various anatomical operations on human bodies and the like.

Chinese invention patent (CN110376922A) discloses an operating room scene simulation system, comprising: the system comprises a scene modeling module and a scene interaction module; the scene modeling module is used for constructing an operating room simulation scene and guiding the operating room simulation scene into the scene interaction module, the operating room simulation scene comprises a plurality of interaction objects, and the interaction objects comprise an operating table, a shadowless lamp, an X-ray film reader, a monitor and a multifunctional anesthesia machine; the scene interaction module is used for receiving each control instruction sent by a user and simulating human bodies to carry out human-computer interaction with each interactive object in the operating room simulation scene according to the control operation corresponding to each control instruction. Therefore, the system can enable a user to observe the internal structure of the operating room in an intuitive form and simulate the operation process of the human body in the operating room for various control operations through various control instructions.

The Chinese invention patent (CN110335516A) discloses a VR heart surgery simulation system, which comprises a simulation server, a surgery operation device, a medication operation device, a virtual database and a real scene data generation unit, wherein the virtual database is connected with a communication interface, an operation data acquisition device and an operation data communication module are sequentially connected between the surgery operation device and the real scene data generation unit, and a medication flow acquisition device and a medication flow communication module are sequentially connected between the medication operation device and the real scene data generation unit. The invention also discloses a VR heart surgery simulation method. Therefore, the invention responds to the acquired data of the myocardial pressure detection module and the action state data of the operation device by the medication operation model, the operation model and the heart simulation data stored in the virtual database to obtain a virtual-real mixed simulation scene.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a three-dimensional display system for virtual surgery training.

The technical problem to be solved by the invention is realized through the following technical scheme, the three-dimensional display system for virtual surgery training comprises a virtual simulation display module, a training operation module, a mainframe box, an upper support table, a lower support table and polarized glasses, wherein the upper support table is fixedly connected to the upper part of the lower support table, the upper support table and the lower support table form an I-shaped support structure, the virtual simulation display module is placed on the upper part of the upper support table, the operation training module is placed at the front end of the upper part of the lower support table, the virtual simulation display module and the operation training module are sequentially arranged in an up-and-down opposite mode, the virtual simulation display module and the training operation module are electrically connected with the mainframe box, and the polarized glasses are placed on the table top of the upper support table.

Furthermore, the virtual simulation display module comprises a first projection device, a second projection device, a rear projection screen device, a reflector device, a mounting support and adjusting support legs, wherein the mounting support is of a four-rod parallel square frame structure, the first projection device and the second projection device are both mounted at the upper end of the mounting support, the rear projection screen device is mounted in the middle of the mounting support, the reflector device is mounted at the lower part of the mounting support, the rear projection screen device is vertically opposite to the reflector device, and the adjusting support legs are hinged to the rear part of the mounting support.

Furthermore, first projection equipment and second projection equipment all include projector, deflection adjusting bracket and polaroid, the projector fixed mounting be in on the landing leg of installing support, the deflection adjusting bracket is installed on the landing leg of installing support through rotatory fixed subassembly, the outer end fixed mounting of deflection adjusting bracket has the polaroid, first projection equipment and the parallel symmetry of second projection equipment are installed on the installing support.

Furthermore, the rotatory fixed subassembly of deflection adjusting bracket includes two relative deflection mounting panels from top to bottom, the outside of deflection mounting panel is equipped with the semicircle carousel, be equipped with the arc slotted hole on the semicircle carousel, install the screw thread compression leg in the arc slotted hole, the deflection mounting panel compresses tightly through the screw thread of screw thread compression leg is fixed to be in realize the synchronous deflection angle regulation of two relative deflection mounting panels from top to bottom on the landing leg of installing support.

Furthermore, a thread piece extrusion fixing device is arranged at the side edge of the rear projection screen device, and the rear projection screen device is fixedly pressed on the mounting bracket through the thread piece extrusion fixing device.

Further, adjust the landing leg including adjusting hinge, first locking Assembly and second locking Assembly, adjust the hinge and be concatenating the connecting rod structure, the both ends of adjusting the hinge all pass through first locking Assembly connects respectively on installing support and regulation landing leg, installing support and regulation landing leg all be equipped with first locking Assembly matched with spout, adjusting concatenating of hinge is equipped with second locking Assembly on the joint, the relative corner of the adjacent two poles of second locking Assembly lockable.

Furthermore, the front end of the reflector device is rotatably installed on the installation support, a reflection angle adjusting assembly is arranged at the rear end of the reflector device, a sliding groove matched with the reflection angle adjusting assembly is formed in the installation support, and the reflector device is in sliding fit in the sliding groove through the reflection angle adjusting assembly to achieve an angle adjusting process.

Further, the training operation module comprises a first force feedback operation device and a second force feedback operation device, the first force feedback operation device and the second force feedback operation device are arranged in a spaced and opposite mode, and the training operation module is used for executing a force feedback operation process.

Compared with the prior art, the invention has the following advantages:

the invention adopts a rear projection mode and is matched with the reflection action of the plane reflector, so that the image position is deviated, the visual depth of three-dimensional observation of an observer is increased, and meanwhile, the image position is registered with the hand operation, thereby achieving good display effect; the system avoids the conventional mode of singly watching the 3D images, utilizes two projectors to project the images, arranges a polaroid on the projector to form polarized light so as to divide the images into left and right images, and simultaneously uses three-dimensional glasses to realize the 3D immersion effect of a virtual reality environment, thereby solving the problem of incapability of registration and simultaneously lightening the visual fatigue and dizziness of an observer; in addition, the system is small and exquisite and convenient, can be configured in a desktop mode, is convenient to carry and store, is good in usability and has high actual use value.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic diagram of the structure of a first projection device 11 according to the present invention;

1-virtual simulation display module, 11-first projection device, 111-projector, 112-deflection adjusting frame, 113-polaroid, 12-second projection device, 13-rear projection screen device, 14-reflector device, 141-reflection angle adjusting component, 15-mounting bracket, 16-adjusting supporting leg, 161-adjusting hinge, 162-first locking component, 163-second locking component, 2-training operation module, 21-first force feedback operation device, 22-second force feedback operation device, 3-main case, 4-upper supporting table, 5-lower supporting table and 6-polarized glasses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the invention discloses a three-dimensional display system for virtual surgery training, which comprises a virtual simulation display module 1, a training operation module 2, a mainframe box 3, an upper support table 4, a lower support table 5 and polarized glasses 6, wherein the polarized glasses 6 comprise 3D stereoscopic glasses for observing rear projection reflection images in a matching manner, the upper support table 4 is fixedly connected to the upper portion of the lower support table 5, the upper support table 4 and the lower support table 5 form an i-shaped support structure, the virtual simulation display module 1 is placed on the upper portion of the upper support table 4, the training operation module 2 is placed on the front end of the upper portion of the lower support table 5, the virtual simulation display module 1 and the training operation module 2 are sequentially arranged in an up-down opposite manner, the virtual simulation display module 1 and the training operation module 2 are both electrically connected with the mainframe box 3, the polarized light glasses 6 are placed on the table top of the upper support table 4. The virtual simulation display module 1 comprises a first projection device 11, a second projection device 12, a rear projection screen device 13, a reflector device 14, a mounting bracket 15 and adjusting support legs 16, wherein the mounting bracket 15 is of a four-bar parallel square frame structure, the first projection device 11 and the second projection device 12 are both mounted at the upper end of the mounting bracket 15, the rear projection screen device 13 is mounted in the middle of the mounting bracket 15, the reflector device 14 is mounted at the lower part of the mounting bracket 15, the rear projection screen device 13 is vertically opposite to the reflector device 14, and the adjusting support legs 16 are hinged to the rear part of the mounting bracket 15. The first projection device 11 and the second projection device 12 both include a projector 111, a deflection adjusting bracket 112 and a polarizer 113, the projector 111 is fixedly mounted on a leg of the mounting bracket 15, the deflection adjusting bracket 112 is mounted on the leg of the mounting bracket 15 through a rotating fixing component, the polarizer 113 is fixedly mounted at the outer end of the deflection adjusting bracket 112, and the first projection device 11 and the second projection device 12 are symmetrically mounted on the mounting bracket 15 in parallel. The rotatory fixed subassembly of deflection adjusting bracket 112 includes relative deflection mounting panel from top to bottom two, the outside of deflection mounting panel is equipped with the semicircle carousel, be equipped with the arc slotted hole on the semicircle carousel, the downthehole screw thread compression leg that installs of arc slotted hole, the deflection mounting panel compresses tightly through the screw thread of screw thread compression leg is fixed on the landing leg of installing support 15 and realize the synchronous deflection angle regulation of relative deflection mounting panel from top to bottom two. The rear projection screen device 13 is provided with a screw extrusion fixing device at the side edge, and the rear projection screen device 13 is fixed and pressed on the mounting bracket 15 through the screw extrusion fixing device. Adjust landing leg 16 including adjusting hinge 161, first locking Assembly 162 and second locking Assembly 163, adjust hinge 161 and be the connecting rod structure of concatenating, the both ends of adjusting hinge 161 are all passed through first locking Assembly 162 is connected respectively on installing support 15 and regulation landing leg 16, installing support 15 with adjust landing leg 16 all be equipped with first locking Assembly 162 matched with spout, adjust hinge 161 concatenate and be equipped with second locking Assembly 163 on the joint, the relative corner of two adjacent poles of second locking Assembly 163 lockable.

The front end of the mirror unit 14 is rotatably mounted on the mounting bracket 15, the rear end of the mirror unit 14 is provided with a reflection angle adjusting assembly 141, the mounting bracket 15 is provided with a sliding groove matched with the reflection angle adjusting assembly 141, and the mirror unit 14 realizes an angle adjusting process through sliding matching of the reflection angle adjusting assembly 141 in the sliding groove. The training operation module 2 comprises a first force feedback operation device 21 and a second force feedback operation device 22, the first force feedback operation device 21 and the second force feedback operation device 22 are arranged at intervals and oppositely, and the training operation module 2 is used for executing a force feedback operation process.

The system adopts double projection to form polarized light stereoscopic projection, double projection can greatly make up the defects of two ends of a single-machine 3D picture, higher image quality is obtained, the picture is ensured to be smoother and smoother, screen bright spots or light reflection is avoided to be uneven, visual fatigue and dizziness caused by long-time watching of the single-machine 3D system are eliminated, the system keeps high image quality in transmission all the time, and high fidelity of the image quality is realized. In the aspect of hardware technology of the stereoscopic display technology, the requirement of stereoscopic display can be met by adjusting the parallax controlled by hardware within a proper range.

In particular use, the apparatus of the invention may be used to build a stereoscopic display system according to a time-shared display technique. The stereoscopic display system often adopts a light splitting technique, and uses two identical projection devices to simultaneously project pictures, and two polarizers 113 with a phase difference of ninety degrees are respectively mounted on the lenses of the two projection devices to form a double image on the screen. The user can select the stereoscopic glasses having the same angle as the lens polarizer 113, and when there is a light source, the left and right lenses of the stereoscopic glasses implement the graphic stereoscopic effect by using the filtered polarized light. The system needs to be provided with a graphic workstation, the graphic workstation outputs a graphic signal, and after the hardware of the three-dimensional display equipment is connected, the software part of the graphic workstation needs to be adjusted. The display part of the graphic workstation is adjusted first, and the projection system needs to be synchronous with the display of the workstation to realize the double projection display, so that the display mode of the graphic workstation is set to be an extended mode, namely, two projections are equivalent to two displays and respectively display different pictures of left eyes and right eyes. Through the combination of the polarizing plate and the polarizing glasses, the left eye of a user only sees a left eye picture, and the right eye of the user only sees a right eye picture. After the model is imported, the effect of three-dimensional stereoscopic display needs to be adjusted in virtual reality software. The images are projected by the dual projector 111, and a polarizing plate 113 is installed on the projector 111 to form polarized light to separate the images into left and right images, while 3D immersion effect of the virtual reality environment is achieved using stereoscopic glasses.

In addition, passive stereo projection is a projection method based on the principle of polarized light, and two images of the same scene with binocular parallax are projected on a screen in an overlapping manner through two projectors 111, and at the moment, a three-dimensional entity with double images is seen by a naked eye observation screen. In order to enable the left and right eyes to respectively see the corresponding images in the stereo image group, the polarizing plate 113 is used as a polarizer, so that the polarization directions of the beams projected by the two projectors 111 are orthogonal after polarization, and the beams are reflected by the screen and then respectively received by the analyzer in the form of stereo glasses. Specifically, light can be transmitted when passing through two polarizing plates 113 with the same polarization direction during propagation; when passing through two pieces of polarized lenses with the polarization directions perpendicular to each other, light cannot be transmitted. Superposing and displaying two projectors 111, and respectively installing polarization lenses with vertical polarization directions in front of lenses; the lenses of the polarized glasses are also vertical in polarization direction. Thus, the left and right eyes of the observer can only see the image projected by one of the projectors 111. The three-dimensional images are respectively projected on retinas of two eyes after being analyzed and polarized by polarized glasses, so that two images with parallax can be respectively observed by the left eye and the right eye of a person, and the display effect is achieved.

The passive stereo projection system based on double-machine superposition can be composed of a graphic workstation, two engineering DLP projectors 111, a polaroid 113, a metal curtain and 3D stereo glasses. Firstly, a user generates a three-dimensional model through a graphic workstation, two paths of video signals are input to two projectors 111 through two interfaces of a high-end professional graphic card on the graphic workstation, light rays of the projectors 111 output two polarized light sources through a polarizing sheet 113 with a polarizing effect and are projected onto a metal curtain, and the user can observe a 3D image effect with high quality through 3D glasses. Meanwhile, the mode can also conveniently carry out multi-channel splicing to achieve the wide-view-field three-dimensional display effect, and the description is omitted here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.