Medical optical positioning shooting device

Abstract

The invention discloses a medical optical positioning shooting device, and belongs to the technical field of medical instruments, the medical optical positioning shooting device comprises a connecting frame capable of being connected with a shadowless lamp and two groups of shooting units, the connecting frame is provided with an insertion hole for a central handle of the shadowless lamp to pass through, and the two shooting units are connected with the connecting frame; the two farthest cameras in each shooting unit are symmetrically arranged relative to the insertion hole, the connecting line between the two farthest cameras in each shooting unit is an arrangement connecting line, and the arrangement connecting lines of the two shooting units intersect at the insertion hole. Wherein the length of the arrangement connecting line of one shooting unit is smaller than the length of the arrangement connecting line of the other shooting unit, the camera of the binocular stereoscopic vision system can be installed on the shadowless lamp by using the structure, and the shadowless lamp is provided with the two different shooting units, so that different shooting units can be called according to actual conditions.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and specifically relates to a medical optical positioning and photographing device. Background Art

[0002] Optical positioning systems have been widely used in the field of surgical navigation technology. Among them, the binocular vision optical positioning surgical navigation system is a high-precision intraoperative real-time positioning technology based on the principle of stereoscopic vision. It captures the spatial positions of surgical instruments and patient anatomical landmarks through two cameras, and combines medical imaging data to assist doctors in accurately completing complex surgical operations.

[0003] Currently, in clinical use, the common setting method of the binocular vision optical positioning surgical navigation system is to integrate the camera, display screen, and host together. When in use, the surgical navigation hardware assembly is placed beside the operating table. However, since medical staff need to move around, the medical staff or surgical facilities may block the camera, thereby affecting the camera's collection of the image information of the tracer, and further affecting the host's judgment of the position of the medical device relative to the patient, as well as the display of the medical device on the medical image. If the position of the surgical navigation hardware assembly is changed to ensure that the camera can always capture the image information of the tracer and ensure the effective acquisition of image information by the camera, during the process of moving the surgical navigation hardware assembly, there will be mutual interference between the lines in the operating room and the surgical navigation hardware assembly, posing a safety hazard.

[0004] In the binocular vision optical positioning surgical navigation system, the distance between the two cameras will affect the shooting range. Therefore, different camera modules will be selected according to factors such as the distance between the surgical navigation hardware assembly and the hospital bed to ensure the image quality captured by the camera. Summary of the Invention

[0005] In order to ensure that the camera can always capture the image information of the tracer to determine the positional relationship between the surgical instrument and the patient and ensure the image quality captured by the camera, this application provides a medical optical positioning and photographing device.

[0006] A medical optical positioning and photographing device includes a connecting frame capable of being connected to a shadowless lamp and two groups of photographing units. The connecting frame is provided with an insertion hole for the central handle of the shadowless lamp to pass through, and the two photographing units are connected to the connecting frame; in each photographing unit, the two cameras farthest apart are symmetrically arranged with respect to the insertion hole. The line connecting the two cameras farthest apart in each photographing unit is the arrangement line, and the arrangement lines of the two photographing units intersect at the insertion hole, and the length of the arrangement line of one photographing unit is less than the length of the arrangement line of the other photographing unit.

[0007] The medical optical positioning and photographing device can be connected to the shadowless lamp through a connecting frame, and the camera can be directed at the surgical site for photographing, so as to ensure that the medical optical positioning and photographing device can accurately capture the image information of the tracer. Even if the position of the camera needs to be adjusted, it can be adjusted by means of the adjustment mechanism inherent in the shadowless lamp, avoiding interference between the lines in the operating room and the movement of the camera. And it can call a suitable photographing unit according to the distance between the camera and the surgical site.

[0008] In an embodiment of the present application, the connecting frame is further connected with a wireless transmission unit capable of interacting with the outside world, and the wireless transmission unit is electrically connected to the camera in the two photographing units.

[0009] The camera can interact with the host placed in the operating room through the wireless transmission unit, so that the host processor in the host processes the image information captured by the camera, and the relevant image information is displayed on the display screen of the host. Thus, the medical optical positioning and photographing device can be designed in a split form with the host, and the installation positions of the two are not restricted from each other, and can be adjusted according to the surgical needs, facilitating the operation.

[0010] In an embodiment of the present application, the camera in the photographing unit is an infrared camera.

[0011] In an embodiment of the present application, the arrangement connection lines of the two photographing units are perpendicular to each other.

[0012] By the way that the arrangement connection lines of the two photographing units are perpendicular to each other, the photographing fields obtained by the cameras in the two photographing units can be quite different, so that a suitable photographing unit can be called according to the surgical needs to obtain different surgical fields.

[0013] In an embodiment of the present application, the connecting frame includes a working part provided with a camera. The working part is strip-shaped, and four working parts are arranged in an array around the axis of the insertion hole.

[0014] In an embodiment of the present application, the connecting frame is further fixedly connected with a split type threaded joint, and the split type threaded joint is arranged at the insertion hole and is coaxially arranged with the insertion hole.

[0015] When the central handle passes through the insertion hole and the split type threaded joint, the split type threaded joint can limit the relative movement of the insertion hole with respect to the central handle, and the medical optical positioning and photographing device can be fixed at the central handle of the shadowless lamp through the split type threaded joint, avoiding the connecting frame moving along the central handle and falling off.

[0016] A medical optical positioning system, which includes any one of the above-mentioned medical optical positioning and photographing devices, and also includes a shadowless lamp provided with a central handle; the shadowless lamp includes an illumination surface, the illumination surface is provided with a mounting groove, and the area of the illumination surface other than the mounting groove is provided with an electric light source for surgical illumination; the connecting frame is detachably connected to the shadowless lamp, and when the connecting frame is connected to the shadowless lamp, the working part of the camera provided on the connecting frame can enter the mounting groove.

[0017] The working part can enter the mounting groove. By adjusting parameters such as the arrangement and orientation of the electric light sources on the lamp panel of the shadowless lamp, the illumination effect of the electric light sources on the surgical site can be ensured, and the situation that the medical optical positioning and photographing device blocks the light emitted by the shadowless lamp and affects the illumination effect of the shadowless lamp can be avoided. At the same time, the mounting groove can also limit the connecting frame, preventing the medical optical positioning and photographing device from shifting when the position of the shadowless lamp is adjusted by medical staff and the connecting frame rotates relative to the central handle of the shadowless lamp.

[0018] In an embodiment of the present application, the illumination surface is further provided with a fixed dial, the fixed dial is located at the mounting groove, the fixed dial is pivotally connected to the shadowless lamp, and can move between a locked position and an unlocked position; when the fixed dial is located at the locked position, the fixed dial restricts the working part from leaving the mounting groove; when the fixed dial is located at the unlocked position, the working part can leave the mounting groove.

[0019] In an embodiment of the present application, the illumination surface is a plane, and when the connecting frame is connected to the shadowless lamp, the main optical axis of the camera is perpendicular to the illumination surface.

[0020] In an embodiment of the present application, the medical optical positioning system further includes a processor, the image information collected by the camera can be sent to the processor, and the processor makes a judgment based on the image information and calls one of the photographing units.

[0021] The processor can call different photographing units according to parameters such as the clarity of the image to ensure the quality of the image collected by the camera.

[0022] The beneficial effects of the present application at least include:

[0023] 1. The medical optical positioning and photographing device can be connected to the shadowless lamp through the connecting frame, and the camera can face the surgical site for photographing, so as to ensure that the medical optical positioning and photographing device can accurately capture the image information of the tracer. Even if the position of the camera needs to be adjusted, it can be adjusted by means of the self-owned adjustment mechanism of the shadowless lamp, avoiding interference between the wires in the operating room and the movement of the camera. And it can call a suitable photographing unit according to the distance between the camera and the surgical site.

[0024] 2. The camera can interact with the host placed in the operating room through the wireless transmission unit, so that the host processor in the host processes the image information captured by the camera, and the relevant image information is displayed on the display screen of the host. Therefore, the medical optical positioning and shooting device can be designed in a split form with the host, and the installation positions of the two are not restricted from each other, and can be adjusted according to the surgical needs, which is convenient for the operation. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an exemplary embodiment of the present application;

[0026] Figure 2 is a schematic structural diagram of an exemplary embodiment of the working part in the present application;

[0027] Figure 3 is a schematic structural diagram of an exemplary embodiment of the split type threaded joint in the present application;

[0028] Figure 4 is a schematic structural diagram of an exemplary embodiment of the present application when four second cameras are provided;

[0029] Figure 5 is a schematic structural diagram of an exemplary embodiment of the shadowless lamp in the present application;

[0030] Figure 6 is a schematic structural diagram of an exemplary embodiment of the connection between the medical optical positioning and shooting device and the shadowless lamp in the present application;

[0031] Figure 7 is a schematic structural diagram of an exemplary embodiment of the connecting frame provided with an antenna in the present application.

[0032] In the figure:

[0033] 101, connecting frame; 102, working part; 103, insertion hole; 104, split type threaded joint; 105, first camera; 106, second camera; 107, antenna;

[0034] 201, shadowless lamp; 202, central handle; 203, electric light source; 204, irradiation surface; 205, installation groove; 206, fixed flap;

[0035] 301, host; 302, host processor; 303, display screen. Detailed Embodiments

[0036] For a clearer understanding of the technical features, objectives, and effects of the present application, the detailed embodiments of the present application are now described with reference to the accompanying drawings. In the figures, the same reference numerals denote components having the same or similar structures but the same functions.

[0037] In this text, "schematic" means "serving as an example, instance or illustration", and any illustration or implementation described as "schematic" in this text should not be construed as a more preferred or advantageous technical solution.

[0038] To simplify the drawings, only the parts relevant to this application are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, for components with the same structure or function in some figures, only one of them is schematically shown, or only one of them is labeled.

[0039] Please refer to Figures 1 to 7 to understand this application.

[0040] Refer to Figure 1 , a medical optical positioning and photographing device, which includes a connecting frame 101 capable of being connected to a shadowless lamp 201 and two groups of photographing units. The connecting frame 101 is provided with an insertion hole 103 for the central handle 202 of the shadowless lamp 201 to pass through, and the two photographing units are connected to the connecting frame; in each photographing unit, the two cameras farthest apart are symmetrically arranged with respect to the insertion hole 103. The line connecting the two cameras farthest apart in each photographing unit is an arrangement line, and the arrangement lines of the two photographing units intersect at the insertion hole 103, and the length of the arrangement line of one photographing unit is less than the length of the arrangement line of the other photographing unit.

[0041] Refer to Figure 1 , Figure 2 , for a better description of this application, the two photographing units are respectively named the first photographing unit and the second photographing unit herein. The first photographing unit is provided with two first cameras 105, and the second photographing unit is provided with two second cameras 106. The two first cameras 105 and the two second cameras 106 are both symmetrically arranged with respect to the insertion hole 103, and the distance between the two first cameras 105 is less than the distance between the two second cameras 106.

[0042] The medical optical positioning and photographing device can be connected to the shadowless lamp 201 through the connecting frame 101. For example, the connecting frame 101 can be connected to the central handle 202 of the existing shadowless lamp 201 by means of pin hole fitting, threaded connection, snap connection, etc. Of course, there are also other ways for the connecting frame 101 to be connected to the central handle 202. Refer to Figure 3, in an embodiment of the present application, the connecting frame 101 is further fixedly connected with a split type threaded joint 104. The split type threaded joint 104 is arranged at the insertion hole 103 and is coaxially arranged with the insertion hole 103. When the central handle 202 passes through the insertion hole 103 and the split type threaded joint 104, the splits of the split type threaded joint 104 abut against the central handle 202. And as the nut of the split type threaded joint 104 is threadedly connected with the screw tube having threads on the outer side wall, the splits of the split type threaded joint 104 are extruded on the side wall of the central handle 202. The split type threaded joint 104 can limit the relative movement of the insertion hole 103 with respect to the central handle 202 by using friction. See Figure 6 . The medical optical positioning and photographing device can be fixed at the central handle 202 of the shadowless lamp 201 through the split type threaded joint 104, so as to prevent the connecting frame 101 from moving along the central handle 202 and falling off.

[0043] Thus, the medical optical positioning and photographing device is fixed on the shadowless lamp 201, and the camera can face the surgical site for photographing, ensuring that the medical optical positioning and photographing device can accurately capture the image information of the tracer. Even if the position of the camera needs to be adjusted, the pose can be adjusted by means of the self-owned adjustment mechanism of the shadowless lamp 201, avoiding interference between the lines in the operating room and the movement of the camera.

[0044] In a binocular vision system, the distance between the two cameras is called the baseline distance. The baseline distance is one of the core parameters affecting the system performance. Different baseline distances will directly affect the ranging range, depth accuracy and field of view overlap area of binocular vision. The larger the baseline distance, the higher the sensitivity of depth calculation and the smaller the depth error of distant objects at the same pixel resolution; the smaller the baseline distance, the better the depth resolution of close objects, but the distant error increases sharply. Since the distances between the two farthest cameras in each photographing unit are different, the appropriate photographing unit can be called according to the actual usage requirements. And during the operation, there is a possibility that the medical staff adjusts the position of the shadowless lamp 201, so the distance between the shadowless lamp 201 and the surgical site will change. Since the distances between the two farthest cameras in the two photographing units are different, the appropriate photographing unit can be called to ensure that the camera can accurately photograph the image information of the tracer.

[0045] See Figure 1 , in an embodiment of the present application, the arrangement connection lines of the two photographing units are perpendicular to each other.

[0046] By the way that the arrangement connection lines of the two photographing units are perpendicular to each other, the photographing fields obtained by the cameras in the two photographing units can be quite different, so that the appropriate photographing unit can be called according to the surgical needs to ensure the normal progress of the surgical navigation operation.

[0047] In an embodiment of the present application, the connecting frame 101 includes a working part 102 provided with a camera. The working part 102 is strip-shaped, and four working parts 102 are arranged in an array around the axis of the insertion hole 103. Since the working part 102 is strip-shaped, the light shielding of the working part 102 from the shadowless lamp 201 is less, avoiding the possibility of reducing the shadow at the surgical field of view.

[0048] In an embodiment of the present application, the working part 102 is further provided with a supplementary light, and the supplementary light can supplement the light of the shadowless lamp 201 blocked, avoiding the appearance of shadows at the surgical field of view.

[0049] In an embodiment of the present application, the connecting frame 101 is further connected with a wireless transmission unit capable of interacting with the outside world. The wireless transmission unit is electrically connected to the camera in the two shooting units.

[0050] The camera can interact with the host 301 placed in the operating room through the antenna 107 of the wireless transmission unit. Thus, the host processor 302 in the host 301 processes the image information captured by the camera, and the relevant image information is displayed on the display screen 303 of the host 301. Thus, the medical optical positioning and shooting device can be designed in a split type with the host 301, and the installation positions of the two are not restricted to each other. They can be adjusted according to the surgical needs, facilitating the operation of the surgery, and reducing the data processing difficulty at the medical optical positioning and shooting device. Furthermore, the complexity of the integrated circuit at the medical optical positioning and shooting device is reduced, which is beneficial to the miniaturization of the medical optical positioning and shooting device.

[0051] Preferably, the antenna 107 of the wireless transmission unit is arranged along the length direction of the working part 102 and around the insertion hole 103 to increase the size of the antenna 107 and ensure the stability of signal transmission.

[0052] In an embodiment of the present application, the camera in the shooting unit is an infrared camera. Preferably, the camera in the shooting unit is a near-infrared camera.

[0053] In an embodiment of the present application, the connecting frame 101 is further connected with a battery, and the battery can supply power to the circuits in the medical optical positioning and shooting device such as the camera and the wireless transmission unit. The insertion hole 103 is detachably connected to the central handle 202, so that the connecting frame 101 can be detached from the shadowless lamp 201 and the battery can be charged. Of course, a power connection port can also be provided on the shadowless lamp 201. When the medical optical positioning and shooting device is connected to the shadowless lamp 201, it can supply power to the circuits in the medical optical positioning and shooting device. Or, the shadowless lamp 201 is provided with a transmitting coil for wireless charging, and the connecting frame 101 is provided with a receiving coil for wireless charging, so as to supply power to the medical optical positioning and shooting device by using wireless charging.

[0054] Those skilled in the art to which this application pertains can understand that the number of cameras in one shooting unit in this application is not limited to two, but can also be three, four, or more. Refer to Figure 4 , and the second shooting unit is provided with four second cameras 106.

[0055] A medical optical positioning system includes any one of the above-mentioned medical optical positioning shooting devices, and also includes a shadowless lamp 201 provided with a central handle 202; the shadowless lamp 201 includes an illumination surface 204, the illumination surface 204 is provided with a mounting groove 205, and an electric light source 203 for surgical illumination is provided in the area of the illumination surface 204 other than the mounting groove 205; the connecting frame 101 is detachably connected to the shadowless lamp 201. When the connecting frame 101 is connected to the shadowless lamp 201, the working part 102 of the connecting frame 101 provided with a camera can enter the mounting groove 205.

[0056] The working part 102 can enter the mounting groove 205. By adjusting the relative dimensional relationship between the mounting groove 205 and the working part 102, and parameters such as the arrangement and orientation of the electric light sources 203 on the lamp panel of the shadowless lamp 201, the illumination effect of the electric light source 203 on the surgical site can be ensured, and the situation that the medical optical positioning shooting device blocks the light source of the shadowless lamp 201 and affects the illumination effect of the shadowless lamp 201 can be avoided. At the same time, the mounting groove 205 can also limit the connecting frame 101 to prevent the medical optical positioning shooting device from shifting when the medical staff adjusts the position of the shadowless lamp 201.

[0057] In an embodiment of this application, the illumination surface 204 is further provided with a fixed flap 206. The fixed flap 206 is located at the mounting groove 205. The fixed flap 206 is pivotally connected to the shadowless lamp 201 and can move between a locked position and an unlocked position; when the fixed flap 206 is located at the locked position, the fixed flap 206 restricts the working part 102 from leaving the mounting groove 205; when the fixed flap 206 is located at the unlocked position, the working part 102 can leave the mounting groove 205. Refer to Figure 5 , in an embodiment of this application, the fixed flap 206 can rotate parallel to the cross-section of the central handle 202. When the fixed flap 206 blocks the mounting groove 205, the fixed flap 206 is located at the locked position to prevent the working part 102 from leaving the mounting groove 205; when the fixed flap 206 no longer blocks the mounting groove 205, the working part 102 leaves the mounting groove 205 through the notch of the mounting groove 205. Of course, the fixed flap 206 can also rotate in a plane parallel to the longitudinal section of the central handle 202. When the fixed flap 206 is in the locked position, the fixed flap 206 is fixedly connected to the shadowless lamp 201 by means of pin-hole cooperation, threaded connection, etc., and the fixed flap 206 can be kept in the locked position.

[0058] In an embodiment of the present application, the illumination surface 204 is a plane. When the connecting frame 101 is connected to the shadowless lamp 201, the principal optical axis of the camera is perpendicular to the illumination surface 204 to reduce the interference of the light of the shadowless lamp 201 on the camera.

[0059] In an embodiment of the present application, the medical optical positioning system further includes a processor. The image information collected by the camera can be sent to the processor, and the processor makes a judgment based on the image information and calls one of the shooting units. Refer to Figure 7 , the medical optical positioning system includes a host 301 and a medical optical positioning shooting device. Both the host 301 and the medical optical positioning shooting device are provided with antennas 107. The host 301 is provided with a host processor 302. The host processor 302 can call different shooting units according to the image information to ensure the image quality collected by the camera, thereby ensuring the normal progress of the surgical navigation and enabling the medical images to be displayed on the display screen 303.

[0060] It should be understood that although this specification is described according to various embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0061] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and they are not intended to limit the protection scope of the present application. Any equivalent implementation or change made without departing from the technical spirit of the present application, such as the combination, division, or repetition of features, should be included in the protection scope of the present application.

Claims

1. A medical optical positioning and shooting device, characterized in that: It comprises a connecting frame that can be connected to a shadowless lamp and two groups of shooting units, wherein the connecting frame is provided with an insertion hole for a central handle of the shadowless lamp to pass through, and the two shooting units are connected to the connecting frame; The two cameras farthest apart in each shooting unit are symmetrically arranged about the insertion hole, and the line between the two cameras farthest apart in each shooting unit is an arrangement line. The arrangement lines of the two shooting units intersect at the insertion hole, and the length of the arrangement line of one shooting unit is shorter than the length of the arrangement line of the other shooting unit.

2. A medical optical positioning and shooting device according to claim 1, characterized in that: The connecting frame is also connected to a wireless transmission unit capable of exchanging information with the outside world, and the wireless transmission unit is electrically connected to the cameras in the two shooting units.

3. The medical optical positioning and shooting device according to claim 1, characterized in that: The camera in the shooting unit is an infrared camera.

4. The medical optical positioning and shooting device according to claim 1, characterized in that: The arrangement lines of the two shooting units are perpendicular to each other.

5. The medical optical positioning and shooting device according to claim 4, characterized in that: The connecting frame comprises a working part provided with a camera, the working part is in a long strip shape, and four working parts are arranged in an array around the axis of the insertion hole.

6. The medical optical positioning and shooting device according to claim 1, characterized in that: The connecting frame is also fixedly connected with a split-flap threaded joint, and the split-flap threaded joint is arranged at the insertion hole and is coaxially arranged with the insertion hole.

7. A medical optical positioning system, characterized in that: A medical optical positioning and photographing device comprising any one of claims 1 to 6, further comprising a shadowless lamp provided with the central handle; The shadowless lamp comprises an irradiation surface, the irradiation surface is provided with a mounting groove, and the area of ​​the irradiation surface other than the mounting groove is provided with an electric light source for surgical lighting; The connecting frame is detachably connected to the shadowless lamp. When the connecting frame is connected to the shadowless lamp, the working part of the camera provided on the connecting frame can enter the installation groove.

8. A medical optical positioning system according to claim 7, characterized in that: The irradiation surface is further provided with a fixed paddle, the fixed paddle is located at the mounting slot, the fixed paddle is pivotally connected to the shadowless lamp, and can move between a locked position and an unlocked position; When the fixing paddle is located at the locking position, the fixing paddle restricts the working part from leaving the mounting slot; When the fixing paddle is located at the unlocking position, the working portion can leave the mounting slot.

9. The medical optical positioning system according to claim 7, characterized in that: The irradiation surface is a plane, and when the connecting frame is connected to the shadowless lamp, the main optical axis of the camera is perpendicular to the irradiation surface.

10. The medical optical positioning system according to claim 7, characterized in that: The medical optical positioning system also includes a processor, and the image information collected by the camera can be sent to the processor. The processor makes a judgment based on the image information and calls one of the shooting units.

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