Head lamp video recording system for small incision operation

Abstract

The invention discloses a head lamp video recording system for a small incision operation, which comprises a special head lamp system of a double-beam lamp for emitting parallel beams, so that the brightness of an operation field reaches 30-50 candelas / square meter, and a video recording system which is controlled separately from the head lamp system is arranged at the same time; only the beam lamp and the camera are arranged on an outer leading fixing frame of the head fixing structure, and the lamp control structure and the video recording control structure are integrated on an integral control device. The outer leading fixing frame guides the beam lamp and the camera to a position which is more than 3cm away from the head; by arranging the double-beam lamp, the brightness of parallel beams can meet the brightness requirement of a deep small incision, and the beam lamp and the camera are arranged far away from the head in combination with an external guide fixing frame, so that the influence of too high heat generated by equipment on a surgeon is avoided; in addition, through independent arrangement of the control device, it is guaranteed that only the light double-beam lamp and the camera are arranged on the outer guide fixing frame, and the cervical vertebra problem of an operator caused by a heavy head structure during operation is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of surgical video acquisition instruments, in particular to the field of surgical video acquisition instruments for deep small incision surgery, and specifically relates to a head lamp and recording system for small incision surgery. BACKGROUND

[0002] In clinical small incision surgery, especially deep small incision surgery, such as invasive surgery of cervical vertebra or other vertebral body parts, the surgeon needs to be close to the surgery during the operation because the incision is small and deep. The assistant's view is blocked by the close operation, affecting the operation cooperation, and thus affecting the assistant's cooperation with the surgeon. The surgeon needs to give instructions before the assistant can perform the relevant operation cooperation operation, which undoubtedly prolongs the operation time. Especially for small and deep incision surgeries such as cervical vertebra, the surgery itself is risky, and the risk of surgery is increased due to the prolongation of the operation time, such as bleeding, nerve damage, and other postoperative adverse prognosis risks.

[0003] Currently, in clinical cooperation with medical staff, including hand washing nurses (instrument nurses), anesthesiologists, and other medical personnel except the operating surgeon. If the cooperating personnel can clearly and accurately understand the surgical field situation of deep small incision surgery, the degree of operation cooperation will be greatly improved, and the operation time will be saved. Therefore, a recording system is needed to ensure that medical personnel other than the operating surgeon can understand the progress of the operation in real time. SUMMARY

[0004] Currently, in clinical small incision surgery, the surgeon usually wears a head lamp to observe the surgical field. However, because the small incision is deep, the brightness of the head lamp is not enough to cause unclear observation. The existing technology discloses CN119364156A - a head-mounted automatic adjustment head lamp recording system and method, which identifies the surgeon's head and then takes pictures. The main brightness of the head lamp during shooting depends on the adjustment of the operating room environment. CN212086333U - a head-mounted sound control surgical video recording device, which sets up a sound control module to control the video area that needs to be shot. However, the head-mounted camera system in the prior art is mostly used in large incision scenarios. The brightness of the surgical field is greatly affected by the environment brightness. The brightness of the head lamp can be adjusted directly by the environment brightness. In addition, large incision surgery rarely affects the assistant's view. Many times, it is not necessary to record the whole process, but only to record at a specific time. Therefore, the existing technology adopts a sound control method to control the recording segment, and the brightness adjustment is more dependent on the automatic adjustment of the environment brightness.

[0005] And the deep small incision surgery, the surgical precision requirements are high. Because the incision depth is deep and small, the brightness of the incision position is very different from the brightness of the environment, so it cannot be automatically adjusted by directly sensing the brightness of the environment, and it is difficult to sense the brightness of the surgical field. The corresponding small incision surgery is directly operated by a surgeon, and only this surgeon can understand the brightness of the field of view, but the surgeon is more likely to control various operating instruments with both hands during surgery, and cannot adjust the brightness with his hands. If other personnel are relied on to adjust the brightness, the accuracy of the adjustment will be disturbed.

[0006] In addition, the headlight of the head-mounted camera system only plays an auxiliary lighting role, and more relies on the brightness of the operating room light, but the brightness of the small incision surgery light depends on the head-mounted light, so a larger power headlight is needed, and the requirements for the camera system are also higher, and the power required is also larger, which undoubtedly makes the power of the camera recording structure and the headlight structure during the process increase a lot, so that the equipment heat generation increases, and the traditional way will make the temperature of the surgeon's head too high, affecting the operation of the surgeon.

[0007] The present application is to improve the brightness of the headlight, set a special headlight system that emits parallel light beams, so that the brightness of the surgical field reaches 30-50 candela / square meter, and at the same time set a camera system that is separately controlled from the headlight system; only the light beam lamp and the camera are set to the head fixing structure, the lamp control structure and the camera recording control structure are integrated into a whole control device, the control device is connected with the light beam lamp and the camera through wires, and the power supply is set to the control device, a wireless signal transmission module is set in the control device, and an external lead fixing frame is set to lead the light beam lamp and the camera to a position more than 3cm away from the head to avoid local high temperature of the surgeon caused by equipment heat generation; through the above structure, the brightness of the parallel light beam can meet the brightness needs of the deep small incision, and through the external lead fixing frame, the light beam lamp and the camera are set away from the head, avoiding the influence of high equipment heat on the surgeon, and through the separate setting of the control device, only the light beam lamp and the camera are set on the head fixing structure, avoiding the cervical spine problems of the surgeon caused by the heavy head structure during operation.

[0008] The specific technical scheme is: a headlight camera recording system for small incision surgery, comprising a head fixing structure, an external lead fixing frame, a headlight system and a camera system.

[0009] The head fixing structure comprises a circular ring fixing structure and a semicircular head fixing structure, and the head fixing structure is arranged on the ring fixing structure.

[0010] The headlight system comprises a light beam lamp capable of forming a light spot in the surgical area so that the field brightness reaches 20-50 candela / square meter; and a lamp control structure for controlling the brightness and on-off of the light beam lamp; the light beam lamp is connected with the lamp control structure through a wire.

[0011] The camera system comprises a three-axis rotating adjustable camera, and a camera control structure for controlling the angle of the camera and the on-off of the camera; the camera is connected with the camera control structure through a wire.

[0012] The external guide fixing frame is arranged at the central position of the head corresponding to the annular fixing structure; the fixing frame comprises a lower lamp fixing frame and an upper camera fixing frame; the lamp fixing frame is connected with the camera fixing frame, and the lamp fixing frame and the camera fixing frame are symmetrical and consistent in surface; the lamp fixing frame is used for fixing the light beam lamp and guiding the light beam lamp to a position more than 3 cm away from the edge of the head fixing structure; the camera fixing frame is used for fixing the camera and guiding the camera to a position more than 3 cm away from the edge of the head fixing structure.

[0013] The control device is used for integrating the lamp control structure and the camera control structure, and the power supply is arranged on the control device; a wireless signal transmission module is arranged on the control device, which is used for transmitting the surgical image of the small incision surgery shot by the camera to the display structure.

[0014] Further, the light beam lamp is a double-lamp structure, and the light beams emitted by the two lamps are superimposed. Finally, a single light spot is formed, and the area of the light spot is larger than that of the small incision; through this arrangement, the difficulty of adjusting the corresponding relationship between the light spot and the shot field in the operation can be reduced, and it is only necessary to adjust the angle of the shooting structure to be consistent with the visual axis of the person, so as to ensure that the shot field is the observation field of view of the surgeon. The specific light spot width range is 1-2 cm; the light spot length is controlled within 5 cm.

[0015] Further, the depth of field of the camera is not less than 50 cm to meet the distance requirement between the camera and the field during the operation of the surgeon.

[0016] Further, because the small incision is irradiated by the light beam, the brightness of the deep incision is inconsistent with the brightness of the environment, and cannot be adjusted by adaptive brightness adjustment. However, the needs of each surgeon are different, and different surgical steps have different requirements for surgical brightness, so the brightness of the light needs to be adjusted during the surgery. If the hand touch remote control method is used for adjustment, the surgeon's hands need to be occupied, which will affect the operation progress. Therefore, the brightness of the light beam is adjusted by voice. Specifically, a language adjustment module and a sound pickup structure are arranged on the lamp control structure. The sound pickup structure receives the instruction signals of "brightness up" and "brightness down" or "brightness up" and "brightness down" or "brightness up" and "brightness down" issued by the surgeon, and sends them to the language adjustment module. The language adjustment module controls the light beam lamp to perform the actions of brightness up and brightness down. The brightness is adjusted by voice, without occupying the surgeon's hands and without the need for additional guidance of other personnel. The surgical operation directly controls the brightness adjustment according to the needs of the surgeon, and adjusts as needed.

[0017] Further, for the small incision surgery of the vertebral body position, the environment is noisy, and the problem of instructions not being recognized by the sound pickup structure is particularly prone to occur. However, the environment noise is complex and miscellaneous, including the sound of various surgical instruments, the working sound of various active surgical instruments, and the communication sound of medical staff in the environment, etc. It is difficult to filter out all the noise. If all the noise is filtered out, it is very easy to filter out the real brightness adjustment instruction information. Therefore, it is necessary to find the noise source that has the greatest impact on the instruction and filter it to improve the accuracy of instruction recognition. Through continuous analysis, it is found that the electrotome noise is the largest interference source. The specific technical solution is to set a filter to filter the sound wave as electrotome noise, and the ripple noise is ≤1mVpp.

[0018] Further, for the camera with free adjustment angle, the horizontal adjustment range is ±180°, the roll is ±45°, the heading is -220°+40°, and the anti-shake accuracy is ±0.005° to ensure the clarity of the image of the surgical field.

[0019] Further, in order to ensure that the surgeon can effectively observe the surgical field, a high-brightness light beam lamp needs to be set. However, too high brightness will cause too much light to enter the camera system, resulting in overexposure and failure to capture effective surgical field images. The problem is solved by setting a filter on the camera, which filters out the overexposed light, so that a clear surgical field video can be captured. The specific technical solution is to block 400-455nm blue light through a yellow filter, combine a polarizing plate to eliminate mirror reflection, and assist in adjusting color temperature and spot parameters.

[0020] Technical effects

[0021] The system can ensure that the light beam lamp and the camera are arranged in a top-down manner to form two independent systems that do not interfere with each other. However, because the lamp fixing frame and the camera fixing frame are symmetrical and consistent, and the area of the light spot is larger than the area of the surgical field, the operator only needs to adjust the shooting path of the camera to be consistent with the line of sight axis of the person, which is simple and convenient. In addition, considering the requirements of small incision on the brightness of the lamp and the depth of field of the camera, the light beam lamp and the camera that generate more heat are led to a position more than 3 cm away from the head by setting an external guide fixing frame to protect the operating surgeon. In addition, the control device is separated from the light beam lamp and the camera by a wire, which can effectively reduce the weight of the head-mounted structure and reduce the neck pressure of the operating surgeon during recording.

[0022] Adjusting the brightness by language can not occupy the hands of the operating surgeon, and no additional guidance is required for other personnel. The surgical operation directly controls the brightness adjustment according to the needs of the operating surgeon. In addition, setting a filter to filter the noise of the electrotome can greatly exclude the interference of environmental noise on the language adjustment brightness instruction.

[0023] Through the setting of the camera position filter, the excessive light is filtered out to ensure the clear effect of the captured image on the basis of high brightness to improve the observation effect of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall process structure of the head lamp and camera recording system.

[0025] Figure 2 It is a schematic diagram of the combination structure of the external guide fixing frame, the light beam lamp and the micro gimbal camera.

[0026] Figure 3 It is a schematic diagram of the combination structure of the camera fixing frame and the micro gimbal camera.

[0027] Figure 4 It is a schematic diagram of the combination structure of the lamp fixing frame and the light beam lamp.

[0028] Figure 5 It is a schematic diagram of the micro gimbal camera structure.

[0029] Figure 6 It is a schematic diagram of the camera fixing frame structure.

[0030] MAIN REFERENCE NUMERALS

[0031] 1, head fixing structure; 11, annular fixing structure; 12, head top fixing structure; 13, adjusting structure; 2, light beam lamp; 3, micro gimbal camera; 31, optical filter; 4, external leading fixing frame; 41, lamp fixing frame; 411, first horizontal section; 412, first inclined section; 413, second horizontal section; 414, through hole one; 42, camera recording fixing frame; 421, third horizontal section; 422, second inclined section; 423, fourth horizontal section; 4231, magnetic attraction structure; 424, through hole two; 43, setting frame; 44, double-layer setting table; 45, locking screw; 46, nut; 471, magnetic attraction structure one; 472, magnetic attraction structure two; 5, control device; 51, lamp control structure; 511, sound pickup structure; 512, voice adjustment module; 513, filter; 52, camera recording control structure; 521, wireless signal transmission module; 53, power supply. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In this document, "illustrative" means "serving as an example, instance, or illustration" and should not necessarily be construed as "preferred" or "advantageous" over other embodiments.

[0034] In order to make the drawings simple, only the parts related to the present application are schematically shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts with the same structure or function is schematically shown, or only one of them is marked.

[0035] In this document, unless otherwise explicitly specified and limited, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" means two or more; the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] REFERENCE Figure 1A head lamp and camera system for small incision surgery, comprising a head fixing structure 1, an external guide fixing frame 4, a head lamp system and a camera system.

[0037] Reference Figure 1 The head fixing structure 1 comprises a circular ring fixing structure 11 and a semicircular head top fixing structure 12, and the head top fixing structure 12 is arranged on the ring fixing structure 11. Both the ring fixing structure 11 and the head top fixing structure 12 are provided with adjusting structures 13 to meet the needs of different users.

[0038] Reference Figure 1 , Figure 2 And Figure 4 The head lamp system comprises a light beam lamp 2 capable of forming a light spot in the surgical area, so that the brightness of the surgical field reaches 30-50 candela per square meter; and a lamp control structure 51 for controlling and adjusting the brightness and on-off of the light beam lamp 2; the light beam lamp 2 and the lamp control structure 51 are connected by wires. The reason for setting the light intensity is that the human eye is most sensitive to the yellow-green light band of 500-600 nm (brightness perception peak), which can clearly distinguish the fine structure of blood vessels, nerves, etc. at 20-50 cd / m², while avoiding glare and visual fatigue caused by strong light. Brightness > 50 cd / m² is easy to cause reflected glare (such as wet tissue or instrument reflection), and < 20 cd / m² requires continuous adjustment of the pupil, which increases the visual burden. And the small incision surgery needs 30-50 cd / m² to enhance the penetration of deep cavity; therefore, the brightness of 30-50 candela per square meter is set based on the clinical needs. The light beam lamp 2 is a double-lamp structure, and the light beams emitted by the double-lamp structure overlap. Finally, a single light spot is formed, and the area of the light spot is larger than the area of the small incision; through this setting, the problem of adjusting the correspondence between the light spot and the photographed surgical field during the operation can be reduced, and only the angle of the shooting structure needs to be adjusted to be consistent with the human visual axis, so as to ensure that the photographed surgical field is the observation field of view of the operating doctor. The specific light spot width range is 1-2 cm; the light spot length is controlled within 5 cm. More specifically, the area of the light spot can be controlled within 3-5 cm 2 . This light spot area can meet the needs of small incision surgery. It ensures that the light spot position does not need to be adjusted during the operation.

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5The camera system comprises a three-axis rotation adjusted camera, and further comprises a camera control structure 52 for controlling the angle of the camera and the on-off of the camera, and the camera is connected with the camera control structure 52 through a wire. The three-axis rotation adjusted camera can be a micro three-axis camera holder, and the depth of field of the camera is not less than 50 cm to meet the distance requirement between the camera and the operation field when the surgeon operates. For the three-axis micro three-axis camera holder, the horizontal adjustment range is ±180°, the roll is ±45°, the heading is -220°+40°, and the anti-shake accuracy is ±0.005° to ensure the clarity of the image of the operation field. Further, the micro three-axis camera holder is a three-axis gyroscope stabilized micro holder camera 3, and the product model can be integrated Feiyu Pocket2s.

[0040] The outer guide fixing frame 4 is arranged at a position corresponding to the middle of the head of the annular fixing structure 11; the outer guide fixing frame 4 comprises a lower lamp fixing frame 41 and an upper camera recording fixing frame 42, the lamp fixing frame 41 is connected with the camera recording fixing frame 42, and the lamp fixing frame 41 is symmetrical with the camera recording fixing frame 42. The lamp fixing frame 41 is used for fixing the light beam lamp 2 and guiding the light beam lamp 2 to a position which is more than 3 cm away from the edge of the head fixing structure 1; the camera recording fixing frame 42 is used for fixing the camera and guiding the camera to a position which is more than 3 cm away from the edge of the head fixing structure 1. It can be set to 4 cm or 5 cm.

[0041] More specific embodiments are as follows: Figures 2-6The outer guide fixing frame 4 comprises a setting frame 43 with an arc of not less than 90° arranged on the annular structure, and double-layer setting tables 44 protruding from the setting frame 43, each layer of the setting tables gradually decreases, and the setting tables can provide a guide distance through the setting tables, reduce the length of the lamp fixing frame 41 and the recording fixing frame 42, and further ensure the overall strength and avoid shaking during shooting. The lamp fixing frame 41 comprises a first horizontal section 411 perpendicular to the setting table, a first inclined section 412 connected to the first horizontal section 411, and a second horizontal section 413 connected to the inclined section from below, and the double-lamp structure is fixed on the second horizontal section 413; wherein the lamp fixing frame 41 is a rod-shaped structure, and the middle region of the double-lamp structure is fixedly connected to the second horizontal section 413. The recording fixing frame 42 comprises a third horizontal section 421, a second inclined section 422 and a fourth horizontal section 423; the recording fixing frame is a plate-shaped structure. A through hole one 414 is arranged on the first horizontal section 411 of the lamp fixing frame 41, the third horizontal section 421 of the recording fixing frame 42 extends out of a setting plate, the setting plate is provided with a through hole two 424, a locking screw 45 and a nut 46 are further arranged, the locking screw 45 is inserted into the through hole one 414 and the through hole two 424, the nut 46 is sleeved on the locking screw 45, and the position relationship between the lamp fixing frame 41 and the recording fixing frame 42 is locked. The double-layer setting tables 44 provide a guide distance of 2 cm, the lamp fixing frame 41 and the recording fixing frame 42 provide a guide distance of 3 cm, and the specific guide distance can be adjusted according to needs. The fourth horizontal section 423 is arranged between the double-lamp structure and contacts the double-lamp structure, which can ensure that the gravity of the miniature three-axis recording gimbal is borne by the double-lamp structure and the lamp fixing frame 41, thereby effectively reducing the shaking during recording. The setting mode of the locking screw 45 and the nut 46 can make the gimbal separate from the double-lamp structure during disassembly, thereby ensuring convenient disassembly. A magnetic attraction structure one 471 is arranged on the fourth horizontal section 423, a magnetic attraction structure two 472 is arranged at the bottom of the miniature three-axis recording gimbal, the recording fixing frame 42 and the miniature three-axis recording gimbal are combined through the magnetic attraction force, the combination mode is simple and convenient, and is firm enough. When disinfection is needed, the structure can be separated by overcoming the magnetic attraction force, thereby facilitating disinfection of each part.

[0042] The control device 5 is used for integrating the lamp control structure 51 and the recording control structure 52, and the power supply 53 is arranged on the control device 5; the recording control structure is provided with a wireless signal transmission module 521 for transmitting the surgical image of the small incision surgery shot by the camera to the display structure. The wireless signal transmission module 521 selects a multi-mode video transmission unit (wi-fi wireless transmission and micro-HDMI line transmission). In specific use, the control structure is arranged on the waist of the surgeon, which is convenient for the surgeon to carry and avoids too long wires.

[0043] Noun explanation: the symmetry plane is defined as the plane that makes the mirror image of the object on the plane completely coincide with the original object.

[0044] Depth of field (DOF) refers to the distance range including the front and back of the object that can obtain clear image in front of the camera lens or other imager. The lens aperture, lens focal length and the distance from the focal plane to the object are important factors affecting the depth of field.

[0045] The arrangement of the above system can ensure that the light beam lamp 2 and the camera are arranged in a top-down manner to form two independent systems that do not interfere with each other. However, due to the symmetry of the lamp fixing frame 41 and the recording fixing frame 42, and the setting that the area of the light spot is larger than the area of the surgical field, only the shooting path of the camera needs to be adjusted to be consistent with the line of sight axis during operation, which is simple and convenient to adjust. In addition, considering the requirements of small incision on lamp brightness and camera depth of field, the power of the light beam lamp 2 and the camera which generates more heat are led to a position more than 3 cm away from the head by setting the external lead fixing frame 4 to protect the operating surgeon. In addition, by separating the control device 5 from the light beam lamp 2 and the camera through the wire, the weight of the head-mounted structure can be effectively reduced, and the operating pressure of the operating surgeon during recording can be reduced as a whole.

[0046] In order to ensure that the small incision field of view is observed by the operating surgeon, the brightness of the light beam lamp 2 is adjusted to a high level, but overexposure problem may occur during camera shooting. In order to solve the problem of overexposure, a magnetic filter structure is set at the end of the camera. Research shows that the light that needs to be filtered includes short-wave blue light (400-455nm), ultraviolet radiation (less than 400nm), and infrared light (greater than 780nm). A yellow filter or filter 31 is set to block 400-455nm blue light, combined with a polarizing plate to eliminate mirror reflection, and auxiliary adjustment of color temperature and light spot parameters. A system that originally supports filter adjustment (such as Meichun and Yadi Lai) is selected, and attention is paid to intraoperative environment management to realize the coordinated optimization of optics and operation. Through the above settings, the purpose of shooting clear surgical field video by the camera can be achieved on the basis of high brightness that meets the observation of the operating surgeon.

[0047] Because the small incision is irradiated by the light beam, the brightness of the deep incision is inconsistent with the brightness of the environment, and cannot be adjusted by self-adaptive brightness adjustment, but the needs of each surgeon are different and different surgical steps have different requirements for surgical brightness, so it is necessary to adjust the light brightness during the operation; if the hand touch method is used for adjustment, the hands of the surgeon need to be occupied, which affects the progress of the operation, therefore the voice is used to adjust the brightness of the light beam. Specifically, a language adjustment module and a sound pickup structure 511 are arranged on the lamp control structure 51; the sound pickup structure 511 receives the instruction signals of "brightness up" and "brightness down" or "brightness up" and "brightness down" or "brightness up" and "brightness down" issued by the surgeon, and sends them to the language adjustment module, and the language adjustment module controls the light beam lamp 2 to execute the actions of brightness up and brightness down. Adjusting the brightness by language can not occupy the hands of the surgeon, nor do you need to guide other personnel, and the operation can be directly controlled by language according to the needs of the operator. Of course, in addition to the brightness adjustment voice adjustment module and the sound pickup structure, the focal length of the recording system can also be adjusted, and when the automatic focusing cannot meet the requirement of the clarity of the image, the language focusing method can be used to ensure the clarity of the image.

[0048] For small incision surgery of the vertebral body, especially the cervical vertebra position, the environment noise is large, and the problem of instruction not being recognized by the sound pickup structure 511 is particularly prone to occur. However, the environment noise is complex and miscellaneous, including the sound of various surgical instruments, the working sound of various active surgical instruments, the sound of communication among medical staff in the environment, etc., it is difficult to filter out all the noise, if all the noise is filtered out, it is very easy to filter out the real brightness adjustment instruction information, therefore it is necessary to find the noise source that has the greatest impact on the instruction, and filter it out, in order to improve the accuracy of instruction recognition. Through continuous analysis, it is found that the electrotome noise is the largest interference source, and the specific technical solution is to set a filter 513, which filters out the electrotome noise, and the ripple noise is ≤1mVpp. The filter 513 is a high-frequency electrotome integrated TDK ACM2012D common-mode filter 513, the working frequency is 100kHz-1GHz, the impedance matching is 50Ω, the insertion loss is ≥30dB@455kHz, and a multilayer ceramic structure is adopted; the power supply 53 is integrated with BOSHIDA NR1-7W isolation power supply 53 module, which supports 500VDC isolation voltage, has built-in active filtering technology, and is suitable for noise isolation of the common ground system of the electrotome and medical equipment, with ripple noise ≤1mVpp. The common frequency interference of the high-frequency electrotome and the voice-controlled voice is reduced to the maximum extent.

[0049] A more preferred embodiment is to introduce a deep learning model: LSTM (Long Short-Term Memory), to further improve the noise suppression effect and improve the voice recognition rate.

[0050] The pickup structure 511 uses a higher sensitivity microphone array: Knowles SPH0645, shortening the response time.

[0051] In use, first put the device on the head of the operating physician, adjust the outer guide bracket 4 to the middle position of the operating physician's head, and then fix the device to the operating physician's head through the adjusting structure 13; before the operation, turn on the light beam lamp 2 and the micro gimbal camera 3 by hand, and adjust the angle of the micro gimbal camera 3 to ensure that the micro gimbal camera 3 is consistent with the line of sight axis of the operating physician, and ensure that the light beam lamp 2 can irradiate the small incision operation position of the line of sight position of the person. After adjusting, start the operation, control the brightness of the light beam lamp 2 according to the voice instruction given by the operating physician according to the operation needs, continuously shoot the operation field through the micro gimbal camera 3 in the process, and send the video to the display structure, so that other auxiliary personnel outside the non-operating physician can clearly understand the situation of the operation site, facilitate the pre-judgment of the tools needed for the operation, greatly improve the cooperation degree among the operating personnel, save the operation time, and in addition, after effectively collecting the operation video, it can be used for clinical teaching, and for rare cases It can also be used to visually discuss and accumulate rich clinical materials.

[0052] Simulated experiment on headlight system

[0053] 1. Experimental objective

[0054] Verify the recognition rate of the speech recognition module with the electrotome noise filter and the speech recognition module without the electrotome noise filter.

[0055] 2. Experimental equipment and conditions

[0056] 2.1 Test equipment:

[0057] The above-mentioned light headlamp system with the speech recognition module with the electrotome noise filter and the light headlamp system with the speech recognition module without the electrotome noise filter.

[0058] High-precision photometer: Konica Minolta CL-500A, measurement range 0.01-100,000 lux, accuracy ±2%.

[0059] Sound level meter: B&K 2250, measurement range 30-130 dB, accuracy ±0.5 dB.

[0060] High-speed camera: Phantom VEO 410L, frame rate ≥1,000 fps, used to record the response process.

[0061] Electrotome simulator: Valleylab Force FX, output frequency 20-500 kHz, power 0-300 W. Used to build a noise environment.

[0062] 2.2 Experimental procedure

[0063] The language adjustment module with filter 513 for filtering the noise of the electrotome was compared with the language adjustment module without filter 513 for filtering the noise of the electrotome. The ambient noise included the noise of the electrotome simulator related to the vertebra surgery, which was provided by the electrotome simulator. The success rate of command recognition was compared.

[0064] 2.3.1 Success rate of command recognition

[0065] Voice command: "Brighten" or "Dim" command was issued, and the change in brightness was recorded.

[0066] The success rate of command recognition was calculated by repeating the brightness adjustment command 50 times in each group. Whether the command was recognized was recorded by monitoring whether the brightness changed. The high-speed camera was aimed at the display screen of the luminometer to determine whether the command recognition was completed.

[0067] 2.5 Experimental results

[0068] The recognition rate of the voice recognition module with filter was 96%, while the recognition rate of the language recognition module without filter was only 56%, and the p-value obtained by chi-square analysis was <0.001, which had a significant difference. Through comparison, it was found that the language adjustment module with filter for filtering the noise of the electrotome could effectively reduce the interference of noise and improve the language recognition rate.

[0069] The above is only a specific embodiment of the present application, and those skilled in the art can make other improvements or modifications on the basis of the above-described embodiments under the above teachings of the present application. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present application, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A headlight video recording system for small incision surgery, comprising, The head fixing structure comprises a circular ring fixing structure and a semicircular head fixing structure, and the head fixing structure is arranged on the ring fixing structure. Also comprising, a headlight system, including a light beam lamp capable of forming a light spot in the surgical area, so that the brightness of the surgical field reaches 30-50 candela / square meter; also including a lamp control structure for controlling the brightness and switching of the light beam lamp; the light beam lamp is connected with the lamp control structure through a wire; a camera system, including a three-axis rotating adjustable camera, also including a video recording control structure for controlling the angle of the camera and the switching of the camera, the camera is connected with the video recording control structure through a wire, the video recording control structure also includes a wireless signal transmission module for transmitting the surgical image of the small incision surgery shot by the camera to the display structure; an external guide fixing frame is arranged at the corresponding position of the head of the annular fixing structure; including the lower lamp fixing frame and the upper video recording fixing frame, the lamp fixing frame and the video recording fixing frame are connected, and the lamp fixing frame and the video recording fixing frame are symmetrical and consistent in surface, the lamp fixing frame guides the light beam lamp to a position more than 3cm away from the edge of the head fixing structure; the video recording fixing frame guides the camera to a position more than 3cm away from the edge of the head fixing structure; The control device is integrated with the lamp control structure and the video recording control structure.

2. The headlamp camcorder system of claim 1, wherein, The light beam lamp is a double lamp structure, the light beams emitted by the double lamps overlap, and finally form a single light spot, the width of the light spot is 1-2cm; the length of the light spot is controlled within 5cm.

3. The headlamp camcorder system of claim 1, wherein, The depth of field of the camera is not less than 50cm.

4. The headlamp camcorder system of claim 1, wherein, The language adjustment module and the pickup structure are arranged on the lamp control structure; the pickup structure receives the instruction signal of brightness adjustment issued by the surgeon, and sends the signal to the language adjustment module, and the language adjustment module controls the light beam lamp to execute the corresponding brightening or dimming action.

5. The headlamp camcorder system of claim 4, wherein, A filter is arranged for filtering electrotome noise, and the filtered ripple noise is ≤1mVpp.

6. The headlamp camcorder system of claim 1, wherein, The horizontal adjustment range of the three-axis rotating adjustable camera is ±180°, the roll is ±45°, the heading is -220°+40°, and the anti-shake accuracy is ±0.005°.

7. The headlamp camcorder system of claim 1, wherein, A yellow filter is arranged at the position of the three-axis rotating adjustable camera, which is used to block 400-455nm blue light.

8. The headlamp camcorder system of claim 1, wherein, The external guide fixing frame includes a setting frame with an arc of not less than 90° arranged on the annular structure, the setting frame has double-layer setting tables protruding therefrom, and each layer of the setting tables gradually decreases in size; the outermost setting table is provided with the lamp fixing frame and the video recording fixing frame.

9. The headlamp camcorder system of claim 8, wherein, The lamp fixing frame includes a first horizontal section perpendicular to the setting table, a first inclined section connected to the first horizontal section, and a second horizontal section connected to the inclined section from below, and the double lamp structure is fixed on the second horizontal section; the lamp fixing frame is a rod-shaped structure, and the middle region of the double lamp structure is fixedly connected with the second horizontal section; the video recording fixing frame includes a third horizontal section, a second inclined section and a fourth horizontal section; the camera fixing frame is a plate-shaped structure; a through hole one is arranged on the first horizontal section of the lamp fixing frame, the third horizontal section of the camera fixing frame extends out of a setting plate, the setting plate is provided with a through hole two, and a locking screw and a nut are further arranged, the locking screw is inserted into the through hole one and the through hole two, and the nut is sleeved on the locking screw to lock the positional relationship between the lamp fixing frame and the video recording fixing frame.

10. The headlamp camcorder system of claim 1, wherein, The fourth horizontal section is arranged between the double lamp structures and contacts the double lamp structures; and the fourth horizontal section is provided with a magnetic attraction structure, and a magnetic attraction structure is arranged at the bottom of the micro three-axis camera cradle.

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