CN114786000A - Microsurgery 3D digital imaging system and 3D microsurgery camera - Google Patents
Microsurgery 3D digital imaging system and 3D microsurgery camera Download PDFInfo
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- CN114786000A CN114786000A CN202210382851.1A CN202210382851A CN114786000A CN 114786000 A CN114786000 A CN 114786000A CN 202210382851 A CN202210382851 A CN 202210382851A CN 114786000 A CN114786000 A CN 114786000A
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
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Abstract
The invention discloses a microsurgery 3D digital imaging system, which relates to the technical field of medical equipment and comprises a 3D microsurgery camera, a video workstation and a 3D display module, wherein the 3D microsurgery camera is used for acquiring a three-dimensional video in a microsurgery field and transmitting the three-dimensional video to the video workstation; the video workstation is used for processing the received three-dimensional video and transmitting the three-dimensional video to be displayed to the 3D display module; and the 3D display module is used for displaying the received three-dimensional video. The invention also discloses a 3D microsurgery camera. The invention combines the three-dimensional imaging technology with clinical microsurgery, eliminates the disadvantages of high physical strength, uncomfortable visual observation and the like of the traditional operation microscope direct vision eyepiece by multi-viewpoint imaging, real-time digital three-dimensional reconstruction and immersive three-dimensional display of an operation area, removes the dependence and restriction of the eyepiece, and enables an operator to obtain more flexibility, freedom degree and comfort degree.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a microsurgery 3D digital imaging system and a 3D microsurgery camera.
Background
The introduction and development of the microscope in the surgical operation make the clinical and scientific research level related to the surgical operation step from macro to micro, not only obviously improve the technical level of the whole operation, but also promote the continuous deepening of the concept of minimally invasive surgery. Under the assistance of a microscope, an operator can identify the spatial relationship of tissues in a three-dimensional operative field and perform high-difficulty operative operations such as fine dissection, cutting, suturing and the like.
The current purely optical surgical microscopes have not been fully adaptable to the needs of surgical development. The optical operation microscope lacks a digital means, and the ocular picture of the operation microscope is difficult to share, so that the surgeon is difficult to cultivate. Meanwhile, the doctor needs to hold a fixed posture of the direct-viewing ocular for a long time in the operation process, so that the problems of high operation labor intensity, visual fatigue and the like are caused.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a microsurgical 3D digital imaging system and a 3D microsurgical camera.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a microsurgical 3D digital imaging system comprises a 3D microsurgical camera, a video workstation and a 3D display module,
the 3D microsurgical camera is used for collecting a three-dimensional video in a microsurgical field and transmitting the three-dimensional video to the video workstation;
the video workstation is used for processing the received three-dimensional video and transmitting the three-dimensional video to be displayed to the 3D display module;
and the 3D display module is used for displaying the received three-dimensional video.
As a preferred embodiment of the microsurgical 3D digital imaging system of the present invention, wherein: the video workstation comprises a video distributor and a video workstation host, the video workstation host comprises a database module, a control module and a human-computer interaction module,
the video distributor is used for copying the received three-dimensional video and comprises a video input end and a plurality of video output ends, the video input end is connected with the video output end of the 3D microsurgical camera, and the video output end is connected with the database module and the 3D display module;
the database module is used for receiving and storing the data transmitted by the video distributor;
the control module is used for controlling the operating parameters of the 3D microsurgical camera and managing and calling data in the database module;
the man-machine interaction module is used for transmitting a control signal to the control module.
The invention also provides a 3D microsurgical camera comprising,
the rack assembly comprises a rack, a first light screen and a second light screen are fixedly mounted on two sides of the rack in the width direction respectively, a third light screen is fixedly mounted in the rack, two sides of the third light screen are abutted to the first light screen and the second light screen respectively, the inside of the rack is divided into two identical optical chambers by the third light screen, a notch communicated with the optical chambers is formed in the upper end of each optical chamber on the rack, an optical filter is fixedly mounted in each notch, and a through hole communicated with the optical chambers is formed in the lower end of each optical chamber in the rack;
the lens cone assembly is arranged in the optical cavity and comprises a lens cone, a first lens, a first space ring, a second lens, a second space ring, a third lens and a pressing ring, wherein the first lens, the first space ring, the second lens, the second space ring, the third lens and the pressing ring are fixedly arranged in the lens cone, the first lens, the first space ring, the second lens, the second space ring, the third lens and the pressing ring are sequentially arranged along the axis direction of the lens cone from bottom to top, two ends of the first space ring are respectively abutted to the first lens and the second lens, two ends of the second space ring are respectively abutted to the second lens and the third lens, the pressing ring is abutted to the third lens, and the lower part of the lens cone extends into the through hole;
the circuit integrated assembly is arranged on the outer side of the rack assembly and comprises a main control board, an image sensor board, an infrared remote control board, a video signal interface board and a power supply board, wherein the image sensor board is used for realizing photoelectric conversion of pictures and transmitting electric signals representing image information to the main control board, the image sensor board comprises a photosensitive chip, the photosensitive chip is fixedly arranged in the notch and positioned above the optical filter, the main control board is used for realizing acquisition of 3D signals and processing and output of videos, the infrared remote control board is used for receiving control signals transmitted by an external control module and transmitting the control signals to the main control board, the video signal interface board is used for realizing input and output of video signals, and the power supply board supplies power to the main control board; and (c) a second step of,
and the shell component is sleeved outside the rack component.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: an internal thread section is arranged in the through hole, an external thread section is correspondingly arranged on the outer side wall of the lens barrel, and the external thread section is in threaded connection with the internal thread section.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: the lateral wall of lens cone has seted up a plurality of along its circumference equidistance and has adjusted the waist hole, the both sides of frame seted up with adjacent the regulation hole of through-hole intercommunication, it wears to be equipped with the regulation pole to slide in the regulation hole, the tip of adjusting the pole can extend adjust in the waist hole.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: the locking hole that communicates with adjacent through-hole is still seted up to the both sides of frame, it wears to be equipped with the check lock to slide in the check lock hole, the tip of check lock pole can extend in the through-hole, and with the lateral wall butt of lens cone subassembly.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: the shell assembly comprises a first shell and a second shell, the first shell and the second shell are in butt joint to form a hollow shell with an opening at the lower end, connecting seats are arranged on the first shell and the second shell, two mounting seats are correspondingly arranged on the rack, and the connecting seats are fixedly connected with the corresponding mounting seats.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: the heat dissipation device comprises a first shell and a second shell, wherein a heat dissipation seat is fixedly installed in the first shell, a heat dissipation fan is fixedly installed in the heat dissipation seat, the first shell faces one side of the heat dissipation fan, an air inlet is formed in the first shell, and air outlets are formed in two sides of the heat dissipation seat.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: the heat dissipation seat is attached to the main control panel.
As a preferable aspect of the 3D microsurgical camera of the present invention, wherein: the axis of the photosensitive chip is overlapped with the axis of the lens barrel.
The beneficial effects of the invention are:
(1) the invention combines the three-dimensional imaging technology with clinical microsurgery, establishes a three-dimensional visual system different from the traditional operating microscope through multi-viewpoint imaging, real-time digital three-dimensional reconstruction and immersive three-dimensional display of an operating area, eliminates the adverse factors of large physical strength, uncomfortable visual observation and the like of a direct-viewing eyepiece of the traditional operating microscope, removes the dependence and constraint of the eyepiece and ensures that an operator can obtain more flexibility, freedom degree and comfort degree.
(2) According to the invention, the 3D display module can be directly connected with the 3D microsurgical camera through the video distributor, so that the real-time display of the picture acquired by the 3D microsurgical camera is realized; the video playback device can also be connected with a video workstation host to realize playback of videos stored in the video workstation host, and has more various functions.
(3) The lens cone assembly is arranged in the through hole of the frame in a threaded manner, the position of the lens cone in the optical cavity can be adjusted up and down by rotating the lens cone, meanwhile, the outer side wall of the lens cone is provided with the adjusting waist hole, the frame is provided with the adjusting hole, when the assembling size of the lens cone assembly after being assembled is different from the design theoretical value, a special adjusting rod can be adopted to penetrate through the adjusting hole to extend into the adjusting waist hole in the side wall of the lens cone and stir the adjusting waist hole, so that the lens cone assembly rotates around the axis of the lens cone assembly, the assembling size is adjusted to the design theoretical value, the imaging focal length value is ensured from the aspect of structure, and the picture quality is ensured.
(4) According to the invention, the locking holes are formed in the two sides of the rack, and after the assembly size is adjusted to a designed theoretical value, the locking rods can extend into the locking holes in the two sides of the rack to lock the two lens cone assemblies, so that the lens cone assemblies can be prevented from moving up and down in the use process, and the numerical value of the assembly size is fixed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a microsurgical 3D digital imaging system provided by the present invention;
FIG. 2 is a schematic block diagram of a microsurgical 3D digital imaging system provided by the present invention;
FIG. 3 is a schematic diagram of a frame of a video workstation host in the microsurgical 3D digital imaging system provided by the present invention;
FIG. 4 is a schematic view of a 3D microsurgical camera in accordance with the present invention;
FIG. 5 is an exploded view of a 3D microsurgical camera provided in accordance with the present invention;
FIG. 6 is a structurally exploded view of a frame assembly in a 3D microsurgical camera provided in accordance with the present invention;
FIG. 7 is a schematic cross-sectional view of a frame assembly in a 3D microsurgical camera provided in accordance with the invention;
FIG. 8 is a cross-sectional view of the structure of the lens assembly of the 3D microsurgical camera provided in accordance with the present invention;
FIG. 9 is a schematic view of the construction of the lens assembly of the 3D microsurgical camera provided in accordance with the present invention;
FIG. 10 is a structurally broken away view of the circuit integration assembly in the 3D microsurgical camera provided in accordance with the invention;
FIG. 11 is a schematic diagram of a power tree included in the power board of the present embodiment;
FIG. 12 is a circuit block diagram of the main control board in this embodiment;
FIG. 13 is a schematic view of a first housing of a 3D microsurgical camera in accordance with the invention;
FIG. 14 is a schematic structural diagram of a second housing of the 3D microsurgical camera provided in accordance with the present invention;
FIG. 15 is a structurally exploded view of a housing assembly in a 3D microsurgical camera provided in accordance with the present invention;
FIG. 16 is a first cross-sectional view of the 3D microsurgical camera after assembly;
FIG. 17 is a second cross-sectional view of the 3D microsurgical camera after assembly;
wherein: 100. a rack assembly; 110. a frame; 120. a first light shielding plate; 130. a second light shielding plate; 140. a third light shielding plate; 150. an optical chamber; 151. a notch; 152. a through hole; 153. an internal thread section; 160. an adjustment hole; 161. adjusting a rod; 170. a locking hole; 171. a locking lever; 180. an optical filter; 190. a pin mounting hole; 191. a pin group; 200. a lens barrel assembly; 210. a lens barrel; 220. a first lens; 230. a first space ring; 240. a second lens; 250. a second space ring; 260. a third lens; 270. pressing a ring; 280. an external threaded section; 290. adjusting a waist hole; 300. a circuit integrated component; 310. a main control board; 320. an image sensor board; 330. an infrared remote control panel; 340. a video signal interface board; 350. a power panel; 360. a power supply flat cable; 370. an infrared receiver; 380. a power supply connector; 390. a control joint; 400. a housing assembly; 410. a first housing; 420. a second housing; 430. a connecting seat; 440. a heat dissipation base; 450. a heat radiation fan; 460. an air inlet; 470. an air outlet; 480. a screw set; 490. a light guide pillar.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Fig. 1 is a schematic structural diagram of a microsurgical 3D digital imaging system provided in an embodiment of the present application. The system includes a 3D microsurgical camera, a video workstation and a 3D display module. Wherein, the 3D microsurgery camera is installed on the operation microscope, realizes the collection to the super high definition three-dimensional video in the microsurgery art field. The 3D microsurgery camera transmits the collected video to the video workstation, and the video workstation realizes the rendering of the video and displays the 3D video through the 3D display module. The 3D display module includes a 3D display.
Referring to fig. 2, the video workstation includes a video distributor and a video workstation host. The video distributor is provided with a video input port and a plurality of video output ports. One path of video input port is used for connecting with a video output port of the 3D microsurgery camera. The multiple video output ports are connectable to the input port of the 3D display module and to the video input port of the video workstation. The video distributor has the function of realizing the copying of videos, namely copying one path of video into a plurality of paths of video, wherein the copied paths of video are all undifferentiated. It should be noted that the multiple output ports of the video distributor are identical, i.e., the output ports can be replaced with each other.
Referring to fig. 3, the video workstation host includes a data processing module, a control module, a database module, and a human-computer interaction module. The data processing module adopts a video data acquisition card which can acquire video streams from any video output port. The database module is used for storing and managing the data acquired by the video acquisition card. The control module is used for realizing the setting of the operating parameters of the 3D microsurgical camera, such as the settings of communication, resolution ratio, display mode, photometric exposure, white balance, color scene and the like. The control module is also used for managing the database module, and specifically comprises the steps of inquiring, deleting and exporting data in the database module. In addition, the control module can also set parameters of the video workstation, such as recording mode, frame rate, disk reserved space setting, account password management, user password modification, operation log and other functions. The video workstation is connected with the input port of the 3D display module. The man-machine interaction module is used for transmitting a control signal to the control module. The man-machine interaction module can adopt one or more of a keyboard, a mouse and a touch display screen.
The video workstation host is mainly used for storing videos collected by the 3D microsurgery camera, and is convenient for a user to use and copy in the later period. Meanwhile, the video workstation host is also used for realizing video interleaving output to a special 3D display screen, so that a user can watch the 3D video on the 3D display screen.
It can be understood that the 3D display module can be directly connected with the 3D microsurgical camera through the video distributor, so as to realize real-time display of the pictures acquired by the 3D microsurgical camera. The video playback device can also be connected with a video workstation host to realize playback of videos stored in the video workstation host.
From this, the technical scheme of this application combines three-dimensional imaging technique and clinical microsurgery, through the multiple viewpoint formation of image, the three-dimensional reconstruction of real-time digit and immersive stereoscopic display to the operation district, establishes a three-dimensional visual system who is different from traditional operation microscope, eliminates that traditional operation microscope looks directly at eyepiece physical strength big, and visual observation is uncomfortable etc. unfavorable factor. Eliminating the reliance and restraint of the eyepiece, the operator will gain more flexibility, freedom and comfort.
Fig. 4 is a schematic structural diagram of a 3D microsurgical camera provided in an embodiment of the present application. The 3D microsurgical camera includes a housing assembly 100, a lens barrel assembly 200, a circuit integration assembly 300, and a housing assembly 400, see fig. 5.
Specifically, the rack assembly 100 includes a rack 110. Referring to fig. 6, the first light shielding plate 120 and the second light shielding plate 130 are fixedly mounted at both sides of the frame 110 in the width direction by screw groups 480, respectively. The first and second light shielding plates 120 and 130 are both disposed in a vertical direction and are parallel to each other. The first light shielding plate 120, the second light shielding plate 130, and the frame 110 form a substantially rectangular parallelepiped frame. A third light shielding plate 140 is fixedly installed inside the housing 110, and the third light shielding plate 140 is disposed in a vertical direction and perpendicular to the first light shielding plate 120 and the second light shielding plate 130. Both sides of the third light shielding plate 140 abut on the sides of the first light shielding plate 120 and the second light shielding plate 130 facing each other. The third shutter plate 140 now divides the interior of the gantry 110 into two identical optical chambers 150. A notch 151 communicating with the optical chamber 150 is formed at the upper end of each optical chamber 150 on the frame 110, and the optical filter 180 is fixedly installed in the notch 151. A through hole 152 is opened in the frame 110 at the lower end of each optical chamber 150 to communicate with the optical chamber 150.
A set of lens barrel assemblies 200 are mounted within each optical chamber 150. Referring to fig. 8, each set of lens barrel assemblies 200 includes a lens barrel 210, and a first lens 220, a first spacer 230, a second lens 240, a second spacer 250, a third lens 260, and a pressing ring 270 fixedly mounted in the lens barrel 210. The first lens 220, the first space ring 230, the second lens 240, the second space ring 250, the third lens 260 and the pressing ring 270 are sequentially arranged from bottom to top along the axis direction of the lens barrel 210, the lower end of the first space ring 230 abuts against the upper end face of the first lens 220, the upper end of the first space ring 230 abuts against the lower end face of the second lens 240, the lower end of the second space ring 250 abuts against the lower end face of the second lens 240, the upper end face of the second space ring 250 abuts against the lower end face of the third lens 260, and the pressing ring 270 abuts against the lower end face of the third lens 260. The lower end of the lens barrel 210 assembly 200 within each optical chamber 150 extends out of the optical chamber 150 through the through hole 152.
Preferably, a section of the internal thread section 153 is disposed in the through hole 152 opened at the lower end of the optical chamber 150 on the frame 110, and correspondingly, a section of the external thread section 280 is disposed on the outer side wall of the lens barrel 210, and the external thread section 280 and the internal thread section 153 form a threaded connection therebetween. At this time, the position of the lens barrel 210 in the optical chamber 150 can be adjusted up and down by rotating the lens barrel 210.
Further, referring to fig. 9, a plurality of adjusting waist holes 290 are formed in the lower portion of the outer side wall of the lens barrel 210, and the adjusting waist holes 290 are sequentially and equidistantly arranged along the circumferential direction of the lens barrel 210. The long axis of each adjustment waist hole 290 is disposed in the vertical direction. The two sides of the frame 110 are further provided with adjusting holes 160 communicated with the adjacent through holes 152, a special adjusting rod 161 can be slidably inserted into the adjusting holes 160, the end of the adjusting rod 161 can extend into an adjusting waist hole 290 on the side wall of the lens barrel 210 through the adjusting holes 160, and the adjusting waist hole 290 is shifted to enable the lens barrel 210 assembly 200 to rotate around the axis thereof, so as to adjust the position of the lens barrel 210 up and down.
Referring to fig. 8, locking holes 170 communicating with the adjacent through holes 152 are further formed at both sides of the frame 110. The locking rod 171 can be slidably inserted into the locking hole 170, and an end of the locking rod 171 can extend into the adjacent through hole 152 through the locking hole 170 and abut against the outer sidewall of the lens barrel 210 to position the lens barrel 210. In addition, pin mounting holes 190 are further formed at both sides of the bottom of the frame 110, and pin groups 191 are mounted in the pin mounting holes 190. The pin group 191 is made of stainless steel, has strong anti-extrusion deformation capability, and can prevent the 3D microsurgery camera from damaging the frame 110 in the process of disassembly and assembly.
The circuit integrated assembly 300 is mounted on the outside of the housing assembly 100. Referring to fig. 10, the circuit integrated assembly 300 includes a main control board 310, an image sensor board 320, an infrared remote control board 330, a video signal interface board 340, a power board 350, a power connector 380, a control connector 390, and a power cable 360. The power cable 360 is used for connecting the main control board 310 and the power board 350. The main control panel 310 is mainly used for acquiring a 3D signal, processing the image quality of a video (including controlling color, resolution, white balance, exposure, and the like), and outputting a video in 3D. The image sensor board 320 includes a photosensitive chip and its peripheral supporting circuits, and a connection interface with the main control board 310, etc. The main function of the photosensitive chip is to realize photoelectric conversion of the image, and transmit an electrical signal representing image information to the main control board 310, so as to realize signal acquisition. The infrared remote control panel 330 is connected with an infrared receiver 370 through a cable. The infrared remote control board 330 has an infrared signal receiving circuit and a signal processing circuit therein. The infrared remote control board 330 is mainly used for receiving control signals sent by an external infrared remote controller, such as control signals for controlling photographing, video recording and the like. The video signal interface board 340 includes a video signal interface and a signal processing circuit, and can realize input and output of video signals. The video signal interface board 340 is mainly used for realizing the connection between the 3D microsurgical camera and the 3D display screen. The power connector 380 is used for connecting with an external power source. The control junction 390 is used for connection with an external control line. The power board 350 supplies power to other boards, so that the requirements of different circuit modules on the power supply are met.
Specifically, referring to fig. 11, the power board 350 in this embodiment includes a power tree to implement output of 8 different power voltages. The 12V power supply is used as the only total power supply input from the outside, so that the use requirement on the field power supply is reduced, and the 12V power supply is easy to obtain. The 5V power mainly supplies video signal circuit, fan circuit etc., 3.3V is the peripheral power supplies such as UART of common CPU, photosensitive circuit etc., 2.9V supplies power for analog circuit of the photosensitive circuit, the 2.5V power supplies power for DDR activation power supply pin, 1.8V is the clock of CPU chip, reset, the power management circuit module supplies power, 1.2V supplies power for memory DDR, 0.8V supplies power for main chip CPU chip, specifically, CPU needs 2 ways of power of 0.8V to supply power for core voltage DVDD CPU and image processing unit DVDD _ GPU of CPU chip respectively.
Referring to fig. 12, the main control board 310 contains the main processor circuitry, which is the core of the entire 3D microsurgical camera. The multi-contact power dedicated connection socket 430 on the main control board 310 receives power supplies from the power sources. Meanwhile, the main control board 310 further includes two micro connection sockets 430 for connecting the binocular image sensor, which are mainly used for receiving electrical signals from the image sensor, and the image sensor and the main chip are connected by using a specific digital signal protocol. The main control board 310 is provided with a clock generating circuit for ensuring the normal operation of the circuit, a reset circuit for program abnormality, and a memory circuit.
The video signal interface board 340 is interconnected with the main control board 310 through the connection socket 430. The video signal interface board 340 realizes the receiving of the video signal of the main control board 310, and realizes the remote transmission of the super-definition video signal through the signal strengthening and adjusting chip.
The infrared remote control board 330 is provided with a chip specially responsible for receiving, processing and sending infrared remote control signals, and the specific working process is as follows: the infrared signal receiver is used for receiving the infrared remote control signal, the processing chip decodes the signal according to the appointed communication protocol, and then the infrared remote control board 330 is in signal connection with the main control board 310 to send the control signal to the main control board 310. The main control board 310 receives the control signal to realize the required function, and the infrared remote control function is completed.
There are two image sensor boards 320, and in the stereoscopic video capture system, the two circuit boards have the same structure, and are installed side by side on the focal plane of the optical lens to convert the optical signal into the electrical signal, as shown in the figure. The photosensitive chip is connected with the main control board 310 through a digital interface. The power supply connector and the data connector of the photosensitive chip are respectively arranged on the upper edge and the lower edge of the board, so that on one hand, the photosensitive chip is respectively connected with the power supply and the main control board 310 in an interconnection mode, the compactness is improved, on the other hand, the power supply and the signal are separated, and the interference is reduced.
Referring to fig. 5, the assembled circuit integrated assembly 300 is substantially a rectangular parallelepiped with a hollow interior and an open lower end, and is disposed outside the rack assembly 100. The photosensitive chip of the image sensor board 320 is accommodated in the notch 151 at the upper end of the frame 110, and the photosensitive chip is opposite to the lens barrel 210. The horizontal position of the image sensor board 320 can be adjusted so that the axis of the photosensitive chip coincides with the axis of the lens barrel 210.
The housing assembly 400 includes a first housing 410 and a second housing 420. In the present embodiment, the first housing 410 is a front housing, and the second housing 420 is a rear housing. First housing 410 and second housing 420 may be horizontally mated to form an open-ended hollow housing that may be fitted over rack 110 assembly 100 to enclose both rack 110 assembly 100 and circuit integrated assembly 300. Wherein, a mounting hole of the infrared receiver 370 is opened on the first casing 410. The second housing 420 is provided with an installation interface for video signals, an installation interface for the control connector 390, and an installation interface for the power connector 380.
The opposite sides of the first housing 410 and the second housing 420 are symmetrically provided with screw mounting holes, and after the first housing 410 and the second housing 420 are butted, the screw set 480 is screwed into the screw mounting holes to fixedly connect the first housing 410 and the second housing 420. Referring to fig. 13 and 14, the lower ends of the first and second housings 410 and 420 are fixedly provided with the connecting base 430, screw mounting holes are also formed in corresponding positions on the rack assembly 100, when the hollow housing formed by butting the first and second housings 410 and 420 is sleeved on the rack assembly 100, the screw mounting holes in the lower ends of the first and second housings 410 and 420 are aligned with the screw mounting holes in the rack assembly 100, and at this time, the housing assembly 400 can be fixedly mounted on the rack assembly 100 by screwing the screw set 480 into the screw mounting holes.
Preferably, referring to fig. 15, a heat sink 440 is also fixedly mounted in the first housing 410 by screws, and a heat dissipation fan 450 is fixedly mounted in the heat sink 440 by screws. An air inlet 460 is formed on one side of the first casing 410 opposite to the heat dissipation fan 450, and air outlets 470 are formed on both sides of the first casing 410 opposite to the side of the heat dissipation seat 440.
The light guide column 490 is further disposed on the second housing 420, and the light guide column 490 can be used to observe the internal working status indicator lamp from the outside, thereby achieving the purpose of judging the internal working status.
Fig. 16 is a first cross-sectional view of the 3D microsurgical camera after assembly. The first light shielding plate 120, the second light shielding plate 130 and the third light shielding plate 140 are used in combination to realize mutual isolation between the two lens barrels 210 and mutual isolation between the lens barrel 210 assembly 200 and the circuit integrated assembly 300. Meanwhile, the bottom surface of the heat sink 440 abuts against the surface of the main heating chip on the main control board 310, which is beneficial for directly transferring the heat of the chip to the heat sink 440, and then the heat sink 440 is cooled in real time by the heat dissipation fan 450.
Fig. 17 is a second cross-sectional view of the 3D microsurgical camera after assembly. Due to tolerances resulting from machining and variations in the assembly process, dimensions X and Y will typically have slight variations from the design theoretical values after assembly is complete. Aiming at the situation, the special adjusting rod 161 can penetrate through the adjusting hole 160 to extend into the adjusting waist hole 290 on the side wall of the lens barrel 210, and the adjusting waist hole 290 is shifted to enable the lens barrel 210 assembly 200 to rotate around the axis of the lens barrel 210 assembly, so that the size X and the size Y are adjusted to the design theoretical value, the imaging focal length value is ensured from the aspect of structure, and the picture quality is ensured. When the dimension X and the dimension Y are adjusted to the design theoretical values, the locking rods 171 extend into the locking holes 170 at the two sides of the frame 110, respectively, and lock the two lens barrel 210 assemblies 200, respectively, so as to prevent the lens barrel 210 assemblies 200 from moving up and down during use, thereby fixing the values of the dimension X and the dimension Y.
Therefore, the 3D microsurgery camera structure disclosed by the technical scheme of the invention has the advantages of stable performance, convenience in interface butt joint and disassembly, visual focal length adjustment, dust prevention, photoelectric separation, effective reduction of the internal temperature of the camera and the like.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the present invention.
Claims (10)
1. A microsurgical 3D digital imaging system, characterized by: comprises a 3D microsurgery camera, a video workstation and a 3D display module,
the 3D microsurgery camera is used for collecting a three-dimensional video in a microsurgery field and transmitting the three-dimensional video to the video workstation;
the video workstation is used for processing the received three-dimensional video and transmitting the three-dimensional video to be displayed to the 3D display module;
and the 3D display module is used for displaying the received three-dimensional video.
2. The microsurgical 3D digital imaging system of claim 1, wherein: the video workstation comprises a video distributor and a video workstation host, the video workstation host comprises a database module, a control module and a human-computer interaction module,
the video distributor is used for copying the received three-dimensional video and comprises a video input end and a plurality of video output ends, the video input end is connected with the video output end of the 3D microsurgical camera, and the video output end is connected with the database module and the 3D display module;
the database module is used for receiving and storing the data transmitted by the video distributor;
the control module is used for controlling the operating parameters of the 3D microsurgery camera and managing and calling the data in the database module;
the man-machine interaction module is used for transmitting a control signal to the control module.
3. A 3D microsurgical camera characterized by: comprises the steps of (a) preparing a substrate,
the rack assembly (100) comprises a rack (110), a first shading plate (120) and a second shading plate (130) are fixedly arranged on two sides of the rack (110) in the width direction respectively, a third light shielding plate (140) is fixedly arranged in the rack (110), two sides of the third light shielding plate (140) are respectively abutted against the first light shielding plate (120) and the second light shielding plate (130), the third shutter plate (140) divides the interior of the housing (110) into two identical optical chambers (150), the upper end of each optical chamber (150) on the frame (110) is provided with a notch (151) communicated with the optical chamber (150), an optical filter (180) is fixedly installed in the notch (151), and a through hole (152) communicated with the optical chambers (150) is formed in the rack (110) and is positioned at the lower end of each optical chamber (150);
the lens barrel assembly (200) is arranged in the optical chamber (150) and comprises a lens barrel (210), and a first lens (220), a first spacing ring (230), a second lens (240), a second spacing ring (250), a third lens (260) and a pressing ring (270) which are fixedly arranged in the lens barrel (210), the first lens (220), the first space ring (230), the second lens (240), the second space ring (250), the third lens (260) and the pressing ring (270) are sequentially arranged from bottom to top along the axial direction of the lens barrel (210), and both ends of the first space ring (230) are respectively abutted against the first lens (220) and the second lens (240), both ends of the second spacer (250) are respectively abutted against the second lens (240) and the third lens (260), the pressing ring (270) is abutted against the third lens (260), and the lower part of the lens barrel (210) extends into the through hole (152);
a circuit integrated assembly (300) installed outside the rack assembly (100), and including a main control board (310), an image sensor board (320), an infrared remote control board (330), a video signal interface board (340), and a power board (350), where the image sensor board (320) is configured to implement photoelectric conversion of a picture and transmit an electrical signal representing image information to the main control board (310), the image sensor board (320) includes a light sensing chip, the light sensing chip is fixedly installed in the slot (151) and located above the optical filter (180), the main control board (310) is configured to implement acquisition of a 3D signal and processing and output of a video, the infrared remote control board (330) is configured to receive a control signal transmitted by an external control module and transmit the control signal to the main control board (310), and the video signal interface board (340) is configured to implement input and output of a video signal, the power panel (350) supplies power to the main control panel (310); and the number of the first and second groups,
a housing assembly (400) nested outside the rack assembly (100).
4. The 3D microsurgical camera of claim 3, characterized in that: an internal thread section (153) is arranged in the through hole (152), an external thread section (280) is correspondingly arranged on the outer side wall of the lens barrel (210), and the external thread section (280) is in threaded connection with the internal thread section (153).
5. The 3D microsurgical camera of claim 4, wherein: a plurality of adjusting waist holes (290) are arranged on the outer side wall of the lens barrel (210) along the circumferential direction of the lens barrel at equal intervals, adjusting holes (160) communicated with the through holes (152) are formed in two sides of the rack (110) and are adjacent to each other, adjusting rods (161) are arranged in the adjusting holes (160) in a sliding and penetrating mode, and the end portions of the adjusting rods (161) can extend into the adjusting waist holes (290).
6. The 3D microsurgical camera of claim 5, characterized in that: the locking hole (170) that communicates with adjacent through-hole (152) is still seted up to the both sides of frame (110), it wears to be equipped with locking lever (171) to slide in locking hole (170), the tip of locking lever (171) can extend in through-hole (152), and with the lateral wall butt of lens cone (210) subassembly (200).
7. The 3D microsurgical camera of claim 3, characterized in that: the shell assembly (400) comprises a first shell (410) and a second shell (420), the first shell (410) and the second shell (420) are butted to form a hollow shell with an opening at the lower end, connecting seats (430) are arranged on the first shell (410) and the second shell (420), two mounting seats are correspondingly arranged on the rack (110), and the connecting seats (430) are fixedly connected with the corresponding mounting seats.
8. The 3D microsurgical camera of claim 7, wherein: fixed mounting has radiating seat (440) in first casing (410), fixed mounting has radiator fan (450) in radiating seat (440), air intake (460) have been seted up towards one side of radiator fan (450) in first casing (410), lie in on first casing (410) the air outlet (470) have been seted up to the both sides of radiating seat (440).
9. The 3D microsurgical camera of claim 8, wherein: the heat dissipation seat (440) is attached to the main control board (310).
10. The 3D microsurgical camera of claim 3, characterized in that: the axis of the photosensitive chip is coincident with the axis of the lens barrel (210).
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| CN202210382851.1A CN114786000A (en) | 2022-04-12 | 2022-04-12 | Microsurgery 3D digital imaging system and 3D microsurgery camera |
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| CN202210382851.1A CN114786000A (en) | 2022-04-12 | 2022-04-12 | Microsurgery 3D digital imaging system and 3D microsurgery camera |
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