CN220650997U - Medical near-to-eye display device - Google Patents

Abstract

The application relates to a medical near-to-eye display device comprising: the rack comprises a first base and a second base which are arranged at intervals along a first direction; the head ring assembly comprises two head rings which are arranged at intervals along a second direction, a containing cavity for containing the head of a user is formed by the two head rings, the first base and the second base in a surrounding mode, and the first direction is intersected with the second direction; one end of each head ring is fixedly connected to the first base, and the other end of each head ring is connected to the second base in a sliding manner; the display module is used for displaying medical images and is rotationally connected to the first base so that the display module can rotate around the second direction in a damping way relative to the first base; the space positioning piece is rotatably connected to the first base, so that the space positioning piece can rotate around the second direction in a damping manner relative to the first base. The medical near-to-eye display equipment has the functions of head ring adjustment, display module overturning, space positioning piece overturning and the like.

Description

Medical near-to-eye display device

Technical Field

The application relates to the technical field of medical instruments, in particular to medical near-to-eye display equipment.

Background

Prior to neurosurgery, a doctor usually makes a surgical plan with the aid of a medical image, and during surgery, the position of a surgical instrument is tracked in real time by using a surgical navigation system so that the surgical instrument can be displayed on the medical image. A doctor can realize intra-operative navigation by observing the real-time relative positions of the surgical instrument and the focus on the medical image. Currently, there is a medical near-eye display device, and a doctor can realize switching observation between medical images and a real space by wearing the device. However, in the related art, the functions of such devices are relatively single, and the convenience and suitability of use are poor.

Disclosure of Invention

Based on this, it is necessary to provide a medical near-to-eye display device, which can realize the display of related images through a display module, so as to realize the basic functions of such a device; in addition, the device also has a plurality of additional functions such as head ring adjustment, display module overturning and space locating piece overturning, and the setting of the functions enables the device to be adjusted according to user requirements, so that the device is higher in use convenience and adaptability.

A medical near-eye display device comprising:

the rack comprises a first base and a second base which are arranged at intervals along a first direction;

the head ring assembly comprises two head rings which are arranged at intervals along a second direction, and a containing cavity for containing the head of a user is formed by the two head rings, the first base and the second base in a surrounding mode, wherein the first direction is intersected with the second direction;

one end of each head ring is fixedly connected to the first base, and the other end of each head ring is connected to the second base in a sliding manner;

the display module is used for displaying medical images and is rotationally connected to the first base so that the display module can rotate around the second direction in a damping way relative to the first base; and

the space positioning piece is rotatably connected with the first base, so that the space positioning piece can rotate around the second direction in a damping way relative to the first base.

In one embodiment, the medical near-eye display device comprises an adjusting assembly, the adjusting assembly comprises a knob, a gear and two racks which are meshed with the gear, the knob is connected with the gear, the two racks are connected with the two head rings in a one-to-one correspondence manner, and the knob is configured to be operably rotated so as to drive the two racks to relatively approach or separate in the length direction of the knob.

In one embodiment, the adjusting assembly further comprises a locking mechanism, when the gear rotates in the forward direction, the two racks are relatively close to each other in the length direction, and when the gear rotates in the reverse direction, the two racks are relatively far away from each other in the length direction; the locking mechanism is capable of inhibiting reverse rotation of the gear when the knob is in an untwisted state.

In one embodiment, the locking mechanism comprises a first locking piece, a second locking piece and a gear ring, wherein the inner wall of the gear ring is provided with a plurality of teeth, a tooth groove is formed between two adjacent teeth, the second locking piece is positioned in the gear ring and is connected with the gear, the first locking piece is connected with the knob, the second locking piece comprises a cantilever, and the free end of the cantilever is clamped into the tooth groove so as to inhibit the gear from rotating reversely when the knob is in the non-rotated state;

when the knob rotates positively, the first locking piece drives the second locking piece to rotate synchronously, the free end deforms to slide into the adjacent tooth groove from one tooth groove, and the gear rotates synchronously positively along with the second locking piece; when the knob rotates reversely, the free end deforms under the supporting of the first locking piece so as to deviate from the tooth groove, and the gear can rotate reversely.

In one embodiment, the first locking piece comprises a pushing block, the second locking piece is provided with a clamping groove positioned at one side of the cantilever and a avoiding groove positioned at the other side of the cantilever, and the pushing block extends into the clamping groove; when the knob rotates forwards, one end of the pushing block is abutted against the groove wall of the clamping groove so as to push the second locking piece to rotate synchronously; when the knob rotates reversely, the other end of the pushing block is abutted to the cantilever, so that the free end is led to avoid towards the avoiding groove to be separated from the tooth groove.

In one embodiment, the first locking member comprises a plurality of pushing blocks arranged at intervals along the circumferential direction of the first locking member, the second locking member comprises a plurality of cantilevers arranged at intervals along the circumferential direction of the second locking member, one side of each cantilever is provided with one clamping groove, the other side of each cantilever is provided with one avoiding groove, and each pushing block extends into one clamping groove.

In one embodiment, the medical near-eye display device includes a first hoop, a first fastener, and a first rotating shaft extending along the second direction, one of the first hoop and the first rotating shaft is connected with the space positioning member, the other of the first hoop and the first rotating shaft is connected with the first base, the first hoop is sleeved outside the first rotating shaft, and the first fastener is used for locking the first hoop so that the first hoop is abutted to the first rotating shaft.

In one embodiment, the medical near-eye display device includes a second hoop, a second fastener and a second rotating shaft extending along the second direction, one of the second hoop and the second rotating shaft is connected with the display module, the other of the second hoop and the second rotating shaft is connected with the first base, the second hoop is sleeved outside the second rotating shaft, and the second fastener is used for locking the second hoop so that the second hoop is abutted to the second rotating shaft.

In one embodiment, the second base comprises a housing, a cavity is formed in the housing, an air inlet and an air outlet which are communicated with the cavity are formed in the housing, a processor, a heat radiation fin and a fan are arranged in the cavity, the processor is connected with the heat radiation fin, and the fan is used for sucking air flow through the air inlet and discharging the air flow through the air outlet.

In one embodiment, the size of the end of the headband attached to the first base is greater than the size of the end attached to the second base.

In one embodiment, a sensing piece for detecting the brain in-place state is arranged on one side of the head ring, which is close to the accommodating cavity.

In one embodiment, a buffer member is disposed on a side of the second base adjacent to the accommodating cavity.

Above-mentioned medical near-to-eye display device, first base, second base and two head rings enclose and establish the chamber of holding that is used for holding user's head, because the one end of every head ring is fixed in first base, and the other end sliding connection is in the second base, then can adjust the volume of holding the chamber through the relative second base slip of head ring to adapt to the head size difference of different users, improve the suitability and the travelling comfort of wearing. Because the space locating piece can rotate around the second direction damping relative to the first base, the space locating piece can be rotated according to the requirement of a user on the positioning visual field of the space locating piece, and the space locating piece can automatically stay at the adjusted position without greatly rotating the head, so that the use convenience is higher. Because the display module can also rotate around the second direction in a damping manner relative to the first base, the display module can be overturned according to the requirement of a user and automatically stays at the adjusted position, so that the user can observe the related images displayed by the display module (for example, when the display module is overturned downwards to be blocked in front of eyes of the user), or directly observe the external real space (for example, when the display module is overturned upwards to be blocked in front of eyes of the user). In conclusion, the equipment has various additional functions such as head ring adjustment, display module upset and space locating piece upset concurrently, and the setting of these functions makes this equipment adjust according to the user's demand, and use convenience and suitability are higher.

Drawings

Fig. 1 is a schematic structural diagram of a near-eye display device for medical use according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a second base and headband assembly according to one embodiment of the present utility model.

Fig. 3 is a schematic view of a part of a structure of an adjusting assembly according to an embodiment of the present application.

Fig. 4 is a schematic view of a portion of the inside of the second base according to an embodiment of the present application.

Fig. 5 is an exploded view of a portion of the components of the adjustment assembly in one embodiment of the present application.

Fig. 6 is an exploded view of a locking mechanism according to an embodiment of the present application.

Fig. 7 is a schematic view of the structure of the cooperation of the pushing block, the cantilever and the tooth slot in an embodiment of the present application.

Fig. 8 is a schematic structural view of a gear ring, a second locking member and a gear according to an embodiment of the present application.

Fig. 9 is a schematic structural view of a space positioner and the like according to an embodiment of the present application.

Fig. 10 is a schematic structural view of a mechanism for damping rotation of a space positioner according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a display module and a first base according to an embodiment of the present disclosure.

Fig. 12 is a schematic structural diagram of a mechanism for damping rotation of a display module according to an embodiment of the present application.

Reference numerals:

the first base 110, the second base 120, the shell 121, the cavity 122, the air inlet 123, the air outlet 124, the head ring 130, the first ring portion 131, the second ring portion 132 and the accommodating cavity 140;

the display module 210, the goggles 220, the second anchor ear 230, the second rotating shaft 240, the second fastening piece 250 and the sleeve 260;

the space positioning piece 310, the fin groove 311, the first hoop 320, the first rotating shaft 330, the first fastening piece 340, the circuit board 350 and the encoder 360;

knob 410, first protrusion 411, gear 420, fifth protrusion 421, rack 430, first locking member 440, pushing block 441, second protrusion 442, groove 443, second locking member 450, cantilever 451, clamping groove 452, escape groove 453, third protrusion 454, fourth protrusion 455, gear ring 460, tooth slot 461, stopper 470, through hole 471, guide 480;

processor 510, heat sink fins 520, fan 530, carrier 540;

a user's head 600.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 2 and fig. 11, the medical near-to-eye display apparatus provided in an embodiment of the present application includes a frame, a head ring assembly, a display module 210 and a space positioning member 310, where the frame includes a first base 110 and a second base 120 arranged at intervals along a first direction, and the head ring assembly includes two head rings 130 arranged at intervals along a second direction. The two head rings 130, the first base 110 and the second base 120 enclose a receiving cavity 140 for receiving the head 600 of the user, wherein the first direction intersects the second direction. One end of each head ring 130 is fixedly connected to the first base 110, and the other end is slidably connected to the second base 120. The display module 210 is used for displaying medical images, and the display module 210 is rotatably connected to the first base 110, so that the display module 210 can rotate around the second direction in a damping manner relative to the first base 110. The spatial locator 310 is rotatably coupled to the first base 110 such that the spatial locator 310 is capable of damped rotation about the second direction relative to the first base 110.

In the medical near-eye display device, since one end of each head ring 130 is fixed on the first base 110 and the other end is slidably connected with the second base 120, the volume of the accommodating cavity 140 can be adjusted by sliding the head ring 130 relative to the second base 120, so as to adapt to the head size difference of different users and improve the wearing suitability and comfort. Because the space positioning member 310 can rotate around the second direction in a damping manner relative to the first base 110, the space positioning member 310 can be rotated according to the requirement of the user on the positioning of the space positioning member 310 for positioning the field of view, and can automatically stay at the adjusted position, so that the head does not need to be rotated greatly, and the use convenience is higher. Because the display module 210 can also rotate around the second direction in a damping manner relative to the first base 110, the display module can be turned over according to the user's requirement and automatically stay at the adjusted position, so that the user can observe the related image displayed by the display module 210 (for example, when the display module is turned down and blocked in front of the user's eyes), or directly observe the external real space (for example, when the display module is turned up and blocked in front of the user's eyes). In summary, the device has multiple additional functions of adjusting the head ring 130, turning the display module 210, turning the space positioning member 310, and the like, and the setting of these functions enables the device to be adjusted according to the user's needs, so that the device has higher use convenience and adaptability.

In some embodiments, the first direction, the second direction, and the third direction are perpendicular to any two. The receiving chamber 140 has an opening at least one end in the third direction for the user's head 600 to extend into or withdraw from the receiving chamber 140. Further, in the embodiment shown in the drawings, the accommodating chamber 140 has openings at both ends in the third direction.

Specifically, the medical near-eye display device is worn in an orientation behind the head 600 of the user, that is, in an orientation of a wearing state, a first direction mentioned in the embodiment of the application is a front-back direction, a second direction is a left-right direction, and a third direction is an up-down direction. Wherein the first base 110 is located at the front side of the user's head 600, and the second base 120 is located at the rear side of the user's head 600.

In some embodiments, the first base 110 and the second base 120 are convex, and the two head rings 130 are also convex, and the four walls of the accommodating cavity 140 are generally arc-shaped, so that the shape of the user's head 600 can be better matched, and the wearing fit and comfort are improved.

Referring to fig. 2 and 3, in some embodiments, the medical near-eye display apparatus includes an adjustment assembly including a knob 410, a gear 420, and two racks 430 each engaged with the gear 420, the knob 410 being connected to the gear 420, the two racks 430 being connected to the two head rings 130 in a one-to-one correspondence, the knob 410 being configured to be operatively rotated to bring the two racks 430 relatively closer to or farther from each other in a longitudinal direction thereof.

Specifically, the adjustment assembly is mounted at the second base 120, wherein the knob 410 is exposed to the housing 121 of the second base 120 to enable the user to rotate it. The gear 420 and the two racks 430 are both mounted in the cavity 122 formed by the housing 121 of the second base 120. In the wearing state, the front end of each rack 430 is fixedly connected with a corresponding head ring 130, and the rear end is meshed with the gear 420. And two racks 430 are disposed at two ends of the gear 420 along the third direction in a one-to-one correspondence manner, i.e. in view of the drawing, one rack 430 is engaged with the upper end of the gear 420, and the other rack 430 is engaged with the lower end of the gear 420. Both head rings 130 are slidably coupled to the second base 120, both of which can slide into and out of the cavity 122.

When the knob 410 is rotated, the gear 420 connected with the knob can be driven to synchronously rotate, and then the two racks 430 are driven to reversely move, so that the two head rings 130 simultaneously slide into or slide out of the cavity 122, and the size adjustment of the accommodating cavity 140 is realized. In view of the drawing, when knob 410 is rotated clockwise, two head rings 130 slide into cavity 122 at the same time, so that head rings 130 can be tightened, and the size of accommodating chamber 140 is reduced; when knob 410 is rotated counterclockwise, both of head rings 130 slide out of cavity 122 simultaneously, allowing head rings 130 to relax and accommodating cavity 140 to become larger in size.

Referring to fig. 3 and 4, in some embodiments, a guide member 480 fixedly connected to the housing 121 is disposed in the cavity 122, and two racks 430 are limited between the guide member 480 and an inner wall of the housing 121 to guide movement of the racks 430, so as to inhibit shaking and position deviation of the racks 430 along a first direction during movement, and improve stability of movement.

Specifically, the guide 480 is fixedly coupled to the housing 121 by a threaded fastener. In the worn state orientation, the two racks 430 are constrained between the guide 480 and the front inner wall of the housing 121.

In some embodiments, some cables for connecting the electrical components in the first base 110 and the second base 120 also run between the guide 480 and the inner wall of the housing 121, and these cables are fixed to the guide 480. Therefore, the cable is more regular in wiring and is not easy to wind.

Preferably, the guide 480 is hollowed out to reduce weight, reduce wearing load of the user, and improve wearing comfort.

Referring to fig. 3 and 4, in some embodiments, the adjustment assembly further includes a locking mechanism, wherein when the gear 420 rotates in the forward direction, the two racks 430 are relatively close to each other in the own length direction, and when the gear 420 rotates in the reverse direction, the two racks 430 are relatively far away from each other in the own length direction; when knob 410 is in an untwisted state, the locking mechanism can inhibit reverse rotation of gear 420.

Specifically, the gear 420 rotates in the forward direction, i.e., clockwise, and rotates in the reverse direction, i.e., counterclockwise. When knob 410 is in an untwisted state, the locking mechanism can inhibit gear 420 from rotating counterclockwise, thereby inhibiting the two racks 430 from moving relatively far apart in their own length direction, thereby inhibiting head ring 130 from loosening. Therefore, the head ring 130 has a self-locking function, so that the head ring 130 cannot be loosened and dropped due to incorrect pulling in the wearing process of a user, and the wearing stability and the safety are higher.

Referring to fig. 5 to 8, in some embodiments, the locking mechanism includes a first locking member 440, a second locking member 450, and a gear ring 460 having a plurality of teeth on an inner wall thereof, with a tooth slot 461 formed between two adjacent teeth. Second locking member 450 is located within gear ring 460 and is coupled to gear 420 and first locking member 440 is coupled to knob 410. The second locking member 450 includes a cantilever 451, and a free end of the cantilever 451 is caught in the tooth slot 461 to restrain the gear 420 from rotating reversely when the knob 410 is in an untwisted state. When the knob 410 rotates forward, the first locking member 440 drives the second locking member 450 to rotate synchronously, and the free end of the cantilever 451 deforms to slide into the adjacent tooth slot 461 from one tooth slot 461, so that the gear 420 rotates synchronously forward with the second locking member 450; when the knob 410 is reversely rotated, the free end of the cantilever 451 is deformed by the first locking member 440 to be separated from the slot 461, and the gear 420 can be reversely rotated.

Specifically, if the locking mechanism is not provided, when the head ring 130 is pulled to slide out of the second base 120, the rack 430 connected to the head ring 130 slides along with it, so as to drive the gear 420 to rotate counterclockwise. In this embodiment, since the locking mechanism is provided, when the knob 410 is not rotated, if the head ring 130 is to be pulled to slide out of the second base 120, the free end of the cantilever 451 abuts against the groove wall of the tooth slot 461, the second locking member 450 is inhibited from rotating counterclockwise, and thus the gear 420 connected thereto is inhibited from rotating counterclockwise, so that the rack 430 is inhibited from sliding out of the second base 120, thereby realizing self-locking.

When the knob 410 rotates in the forward direction (clockwise rotation), the first locking member 440 rotates in synchronization therewith, and thus the second locking member 450 is pushed to rotate in synchronization, and during this process, the free end of the cantilever 451 is deformed by the teeth of the gear ring 460, and enters the adjacent tooth slot 461 on the clockwise side of the tooth slot 461. The knob 410 is continuously rotated forward, and the free end of the cantilever 451 will continuously jump from one of the slots 461 into its clockwise adjacent slot 461 in the manner described above, and the gear 420 is synchronously rotated with the second locking member 450, thereby achieving tightening of the head ring 130. Until the knob 410 stops rotating, the free end of the cantilever 451 will rest in this tooth slot 461 that was last entered. When the knob 410 is reversely rotated (counterclockwise rotated), the free end of the cantilever 451 is deformed in a direction away from the slot 461 by the abutment of the first locking member 440, thereby being separated from the slot 461, and at this time, the free end of the cantilever 451 is not abutted against the slot wall of the slot 461 any more, and the reverse rotation of the second locking member 450 and the gear 420 is not restricted. In the reverse rotation process, the first locking member 440 pushes the second locking member 450 to rotate reversely synchronously by abutting against the cantilever 451, so as to drive the gear 420 to rotate reversely, thereby releasing the head ring 130.

Referring to fig. 5 to 7, further, in some embodiments, the first locking member 440 includes a pushing block 441, the second locking member 450 is provided with a clamping groove 452 located on one side of the cantilever 451, and a avoiding groove 453 located on the other side of the cantilever 451, and the pushing block 441 extends into the clamping groove 452; when the knob 410 rotates forward, one end of the pushing block 441 abuts against the groove wall of the clamping groove 452, so as to push the second locking member 450 to rotate synchronously; when knob 410 is rotated in the reverse direction, the other end of push block 441 abuts against cantilever 451, so that the free end of cantilever 451 is retracted toward retraction groove 453 and is retracted from slot 461.

Specifically, in the view of fig. 8, when the knob 410 is rotated in the forward direction, the first locking member 440 is rotated in synchronization therewith, and the right end wall of the pushing block 441 abuts against the right end wall of the clamping groove 452, thereby pushing the second locking member 450 to rotate in synchronization. When the knob 410 is rotated reversely, the left end of the pushing block 441 abuts against the free end of the cantilever 451, and is pushed into the escape groove 453, thereby coming out of the tooth groove 461.

In some embodiments, the outer wall of the push block 441 is curved and the curved surface is coaxial with the gear 420 and the second lock 450. In this way, during the reverse rotation of the pushing block 441, the teeth of the inner wall of the ring gear 460 are not bumped. And the left end of the pushing block 441 is in a sharp corner shape, so that the free end of the cantilever 451 is more easily pressed into the avoiding groove 453.

Referring to fig. 5 to 7, in some embodiments, the first locking member 440 includes a plurality of pushing blocks 441 circumferentially spaced apart from each other, the second locking member 450 includes a plurality of cantilever arms 451 circumferentially spaced apart from each other, one side of each cantilever arm 451 is provided with a slot 452, the other side is provided with a recess 453, and each pushing block 441 extends into one slot 452.

Specifically, in the embodiment shown in the drawings, three sets of matched pushing blocks 441, cantilevers 451, clamping grooves 452 and avoiding grooves 453 are provided, and the central angle between each set is 120 degrees. By uniformly arranging a plurality of groups of the above structures, the structural stability and the movement stability of the locking mechanism can be improved.

Referring to fig. 5 and 8, in some embodiments, the first locking member 440 is inserted into the knob 410, so that the first locking member 440 can rotate synchronously with the knob 410. The second locking member 450 is inserted into the gear 420 such that the gear 420 can rotate synchronously with the second locking member 450.

Specifically, the knob 410 is provided with a first protruding portion 411 protruding, the corresponding position of the first locking member 440 is provided with a second protruding portion 442 protruding outwards, the second protruding portion 442 is inserted into a slot provided on the first protruding portion 411, and both the second protruding portion 442 and the slot are non-circular, so that synchronous rotation of the two can be achieved. The second locking member 450 is provided with a protruding fourth protruding portion 455, the gear 420 is provided with a protruding fifth protruding portion 421 at a corresponding position, the fifth protruding portion 421 is inserted into a slot provided on the fourth protruding portion 455, and the fifth protruding portion 421 and the slot are both non-circular, so that synchronous rotation of the two can be achieved, and the fifth protruding portion 421 and the fourth protruding portion 455 are further fixed by screws. The protruding structure and the slot structure in the structure can be interchanged, or the two parts for realizing synchronous rotation can be directly and fixedly connected.

Further, a limiting member 470 is further disposed on the inner side of the knob 410, and the limiting member 470 is fixedly connected with the guiding member 480. The limiting member 470 is provided with a through hole 471, and the second protrusion 442 is inserted into the slot provided in the first protrusion 411 through the through hole 471. The stopper 470 can limit the first locking member 440, the second locking member 450, and the like, which are positioned inside the stopper in the first direction, and suppress the positional displacement in the first direction.

Referring to fig. 5 and 6, preferably, the second locking member 450 is provided with a protruding third protruding portion 454, the first locking member 440 is provided with a concave groove 443, and the third protruding portion 454 is inserted into the groove 443 to improve the stability of the two rotating synchronously.

Referring to fig. 9 and 10, in some embodiments, the medical near-eye display apparatus includes a first hoop 320, a first fastener 340, and a first shaft 330 extending along a second direction, one of the first hoop 320 and the first shaft 330 is connected to the space positioning member 310, the other of the first hoop 320 and the first shaft 330 is connected to the first base 110, the first hoop 320 is sleeved outside the first shaft 330, and the first fastener 340 is used to lock the first hoop 320 so that the first hoop 320 abuts against the first shaft 330.

Specifically, the spatial locator 310 is an infrared camera that enables locating surgical instruments and the like by the binocular locating principle. In the embodiment shown in the drawings, the space locator 310 is fixedly connected to the first anchor ear 320, the first base 110 is fixedly connected to the first rotating shaft 330, and the first fastener 340 is a screw. Damping rotation of the spatial locator 310 relative to the first base 110 can be achieved by the first hoop 320 holding the first shaft 330 such that the position of the spatial locator 310 can be adjusted and the angle can be maintained after adjustment. By adjusting the degree of tightening of the first fastener 340, the amount of resistance to rotation of the spatial locator 310 relative to the first base 110 can be adjusted.

Referring to fig. 9 and 10, a circuit board 350 communicatively connected to the space-addressing member 310 and an encoder 360 communicatively connected to the circuit board 350 are further disposed in the first base 110, and the encoder 360 can detect the rotation angle of the space-addressing member 310. The outer shell of the space positioning member 310 is made of aluminum alloy material, so as to have better heat dissipation performance. The outer shell of the space positioning piece 310 is also provided with a fin groove 311 to further accelerate heat dissipation and improve comfort level when a user touches the area by hands. The inner wall of the housing of the space locator 310 is also attached with a copper foil, which has an effect of uniform temperature, and it can be detected whether a user touches the area by detecting a change in capacitance between the user's hand and the copper foil thereof. When the user needs to rotate the spatial locator 310, once a touch action occurs, it can be detected in the above manner.

Referring to fig. 11 and 12, in some embodiments, the medical near-eye display apparatus includes a second hoop 230, a second fastener 250, and a second rotating shaft 240 extending along a second direction, one of the second hoop 230 and the second rotating shaft 240 is connected to the display module 210, the other of the second hoop 230 and the second rotating shaft 240 is connected to the first base 110, the second hoop 230 is sleeved outside the second rotating shaft 240, and the second fastener 250 is used to lock the second hoop 230 so as to make the second hoop 230 abut against the second rotating shaft 240.

Specifically, in the embodiment shown in the drawings, the second anchor 230 is connected to the display module 210, the second rotating shaft 240 is connected to the first base 110, and the second fastening member 250 is a screw. Damping rotation of the display module 210 relative to the first base 110 can be achieved by the second hoop 230 holding the second rotating shaft 240, so that the position of the display module 210 can be adjusted and the display module can stay at the adjusted angle. By adjusting the tightening degree of the second fastening member 250, the resistance of the display module 210 to the rotation of the first base 110 can be adjusted.

More specifically, two second anchor ears 230 are disposed at intervals along the second direction, a sleeve 260 extending along the second direction is disposed between the two second anchor ears 230, and the sleeve 260 is fixedly connected with the first base 110. The second anchor ear 230 is fixedly connected with the display module 210, a second rotating shaft 240 is arranged in each second anchor ear 230 in a penetrating way, and the second rotating shafts 240 extend into the sleeve 260 and are connected with each other. The cross sections of the second rotating shaft 240 and the sleeve 260 are shaped, and the shapes and the sizes of the two are matched, so that the two cannot rotate relatively. In this way, damped rotation of the second anchor 230 about the second axis of rotation 240 is achieved. In this embodiment, by arranging two sets of second hoops 230 and second shafts 240, the stability of the damping rotation of the display module 210 can be improved.

Also attached to the first base 110 is a pair of goggles 220, and the goggles 220 protect the eyes of the wearer. The goggles 220 are made of PC material, and are coated after surface hardening, so that the transmittance of ambient light is reduced, the transmittance is kept between 35% and 65%, and the visual fatigue of a user is relieved. In addition, a microphone may be mounted on the first base 110.

Referring to fig. 2 and 4, in some embodiments, the second base 120 includes a housing 121, a cavity 122 is formed in the housing 121, an air inlet 123 and an air outlet 124 are formed in the housing 121 and are communicated with the cavity 122, a processor 510, a heat sink 520 and a fan 530 are disposed in the cavity 122, the processor 510 is connected with the heat sink 520, and the fan 530 is used for sucking air flow through the air inlet 123 and discharging the air flow through the air outlet 124.

Specifically, a carrier 540 fixedly connected to the housing 121 is disposed in the cavity 122, and the processor 510, the heat sink 520, the fan 530, and other components are fixedly mounted on the carrier 540. The processor 510 includes a core board on which a chip is mounted, which can implement data processing and calculation for the display module 210 and the spatial locator 310. The processor 510 generates a lot of heat during operation, and the heat can be conducted to the heat dissipation fins 520 and dissipated to the housing 121, and finally dissipated to the external environment. Meanwhile, the fan 530 sucks the low-temperature air flow of the external environment into the cavity 122, and makes the air flow take away the heat in the cavity 122 and then discharge the heat from the air outlet 124, so as to accelerate heat dissipation and avoid the fault caused by overheat of the processor 510. Preferably, a heat-conducting spacer is connected between the processor 510 and the heat-dissipating fins 520 to accelerate heat transfer between the two and improve heat dissipation efficiency.

Referring to fig. 2, in some embodiments, a sensing member for detecting an in-place state of the brain is provided at a side of the head ring 130 adjacent to the receiving chamber 140.

Specifically, the sensing element is a photoelectric switch, and when a user wears the device, the head of the device shields the sensing element, so that the sensing element can detect that the brain is currently in place. Also mounted within the headband 130 is a speaker positioned near the user's ears to make the sound heard by the user more clear.

Referring to fig. 2, in some embodiments, the size of the end of the head ring 130 connected to the first base 110 is larger than the size of the end connected to the second base 120.

Specifically, the head ring 130 includes a first ring portion 131 and a second ring portion 132 that are clamped to each other, one end of the second ring portion 132 facing away from the first ring portion 131 extends into the second base 120 and is fixedly connected with the rack 430, and one end of the first ring portion 131 facing away from the second ring portion 132 is fixedly connected with the first base 110. The sensing member and the speaker are mounted to the first ring portion 131. The end of the first ring portion 131 facing away from the second ring portion 132 is sized larger to allow sufficient space for mounting the sensing element, speaker, etc. The smaller size of the end of the second ring portion 132 facing away from the first ring portion 131 may allow the area of the headband 130 proximate to the second pedestal 120 to bend more easily and thus more easily enter the second pedestal 120.

Referring to fig. 1 and 2, in some embodiments, a buffer member is disposed on a side of the second base 120 adjacent to the accommodating cavity 140.

Specifically, the buffer piece comprises a buffer part and a fixing part which are fixedly connected. The fixing part is made of nylon, is positioned on one side wall of the shell 121 close to the accommodating cavity 140, and is fixedly clamped with the shell 121 through a clamping hook. The buffer part is attached to one side of the fixing part, which is away from the shell 121, and is made of sponge or foam and other materials, so that the head of a user can be protected, and wearing comfort is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (12)

1. A medical near-eye display apparatus, characterized in that the medical near-eye display apparatus comprises:

a frame including a first base (110) and a second base (120) arranged at intervals along a first direction;

the head ring assembly comprises two head rings (130) which are arranged at intervals along a second direction, wherein two head rings (130), a first base (110) and a second base (120) enclose a containing cavity (140) for containing a user head (600), and the first direction is intersected with the second direction;

one end of each head ring (130) is fixedly connected to the first base (110), and the other end is slidably connected to the second base (120);

the display module (210) is used for displaying medical images, and the display module (210) is rotationally connected to the first base (110) so that the display module (210) can rotate around the second direction in a damping way relative to the first base (110); and

the space positioning piece (310) is rotatably connected to the first base (110) so that the space positioning piece (310) can rotate around the second direction in a damping mode relative to the first base (110).

2. The medical near-eye display apparatus of claim 1, comprising an adjustment assembly comprising a knob (410), a gear (420), and two racks (430) each engaged with the gear (420), the knob (410) being connected to the gear (420), the two racks (430) being connected in one-to-one correspondence with the two head rings (130), the knob (410) being configured to be operatively rotated to bring the two racks (430) relatively closer together or farther apart in their own length direction.

3. The medical near-eye display apparatus of claim 2, wherein the adjusting assembly further comprises a locking mechanism, wherein when the gear (420) rotates forward, the two racks (430) are relatively close in a self-length direction, and when the gear (420) rotates backward, the two racks (430) are relatively far apart in a self-length direction; the locking mechanism is capable of inhibiting reverse rotation of the gear (420) when the knob (410) is in an untwisted state.

4. A medical near-eye display apparatus according to claim 3, wherein the locking mechanism comprises a first locking member (440), a second locking member (450), and a gear ring (460) having a plurality of teeth on an inner wall thereof, a tooth space (461) being formed between two adjacent teeth, the second locking member (450) being located in the gear ring (460) and connected to the gear (420), the first locking member (440) being connected to the knob (410), the second locking member (450) comprising a cantilever (451), a free end of the cantilever (451) being snapped into the tooth space (461) to inhibit the gear (420) from rotating reversely when the knob (410) is in the non-rotated state;

when the knob (410) rotates positively, the first locking piece (440) drives the second locking piece (450) to rotate synchronously, the free end deforms to slide into the adjacent tooth groove (461) from one tooth groove (461), and the gear (420) rotates synchronously positively along with the second locking piece (450); when the knob (410) rotates reversely, the free end deforms under the abutting of the first locking piece (440) to be separated from the tooth groove (461), and the gear (420) can rotate reversely.

5. The medical near-eye display apparatus of claim 4, wherein the first locking member (440) comprises a pushing block (441), the second locking member (450) is provided with a clamping groove (452) located at one side of the cantilever (451), and a avoiding groove (453) located at the other side of the cantilever (451), and the pushing block (441) extends into the clamping groove (452); when the knob (410) rotates forwards, one end of the pushing block (441) is abutted against the groove wall of the clamping groove (452) so as to push the second locking piece (450) to rotate synchronously; when the knob (410) rotates reversely, the other end of the pushing block (441) is abutted against the cantilever (451) so that the free end is avoided towards the avoiding groove (453) and is separated from the tooth groove (461).

6. The medical near-eye display apparatus according to claim 5, wherein the first locking member (440) includes a plurality of pushing blocks (441) arranged at intervals in a circumferential direction thereof, the second locking member (450) includes a plurality of cantilevers (451) arranged at intervals in a circumferential direction thereof, one side of each cantilever (451) is provided with one of the catching grooves (452), the other side is provided with one of the escape grooves (453), and each pushing block (441) extends into one of the catching grooves (452).

7. The medical near-eye display apparatus according to any one of claims 1 to 6, comprising a first anchor ear (320), a first fastener (340) and a first shaft (330) extending in the second direction, one of the first anchor ear (320) and the first shaft (330) being connected with the spatial locator (310), the other of the first anchor ear (320) and the first shaft (330) being connected with the first base (110), the first anchor ear (320) being sleeved outside the first shaft (330), the first fastener (340) being adapted to lock the first anchor ear (320) such that the first anchor ear (320) abuts the first shaft (330).

8. The medical near-eye display apparatus according to any one of claims 1 to 6, comprising a second anchor ear (230), a second fastener (250) and a second rotation shaft (240) extending in the second direction, one of the second anchor ear (230) and the second rotation shaft (240) being connected with the display module (210), the other of the second anchor ear (230) and the second rotation shaft (240) being connected with the first base (110), the second anchor ear (230) being sleeved outside the second rotation shaft (240), the second fastener (250) being used to lock the second anchor ear (230) such that the second anchor ear (230) abuts against the second rotation shaft (240).

9. The medical near-to-eye display apparatus according to any one of claims 1 to 6, wherein the second base (120) comprises a housing (121), a cavity (122) is provided in the housing (121), an air inlet (123) and an air outlet (124) which are communicated with the cavity (122) are provided on the housing (121), a processor (510), a heat sink (520) and a fan (530) are provided in the cavity (122), the processor (510) is connected with the heat sink (520), and the fan (530) is used for sucking air through the air inlet (123) and discharging air through the air outlet (124).

10. The medical near-eye display apparatus of any one of claims 1 to 6, wherein a size of an end of the head ring (130) connected to the first base (110) is larger than a size of an end connected to the second base (120).

11. The medical near-eye display apparatus of any one of claims 1 to 6, wherein a side of the head ring (130) close to the accommodation chamber (140) is provided with a sensing member for detecting an in-place state of the brain.

12. The medical near-eye display apparatus according to any one of claims 1 to 6, wherein a buffer is provided on a side of the second base (120) close to the accommodation chamber (140).