A universal arm device for real-time assisted surgical field visual blind spot image acquisition

Abstract

The present invention discloses a universal arm device for real-time auxiliary surgical field visual blind spot image acquisition, belonging to the field of image acquisition and transmission. The device includes a clamp, a universal arm and an auxiliary view camera assembly. The clamp is used to clamp and fix the fixed object; and two structural clamps are designed for the fixed object position, which is a bedside platform or a spreader. The universal arm is a metal shaped hose, the end of which is connected to the clamp; the top is connected to the auxiliary view camera assembly. Furthermore, the present invention can change the adjustment mode of the universal arm from passive adjustment to active adjustment, and the shooting position and shooting angle of the camera in the auxiliary view camera assembly can be manually and autonomously controlled, so that the camera can be adjusted in any direction and angle, which is flexible to use and the position will not shift, which facilitates the doctor's operation during surgery.

Description

Technical Field

[0001] The invention belongs to the field of image acquisition and transmission, and relates to a universal arm device for assisting in real-time transmission of images of visual blind spots during surgery. Background Art

[0002] The universal arm device currently used in surgical teaching courses to assist in the real-time transmission of images of the position of visual blind spots during surgery has a complex structure and high processing cost; when the position of the universal arm joints is adjusted during use, the friction between the universal arm joints is insufficient to achieve complete fixation. When the camera is placed in the preset position, the position of the camera will shift after the clamp is released, which is not conducive to the transmission of images in surgical teaching courses; the universal arm device needs to be passively adjusted during use, and the operation during surgery is complicated, which is not conducive to the progress of the surgery; the external communication cable for transmitting the camera video signal in the universal arm device may affect the doctor's surgical operation, and secondly, the disinfection difficulty is increased. Summary of the Invention

[0003] To address the above problems, the present invention proposes a universal arm device for real-time assistance in the transmission of images of visual blind spots during surgery, which can fully assist in the acquisition of video images in the visual blind spots of the three-degree-of-freedom pan-tilt head during surgery.

[0004] The invention discloses a universal arm device for assisting in real-time acquisition of images of a visual blind spot in an operating field, comprising a clamp, a universal arm and an auxiliary viewing angle camera assembly.

[0005] The clamp is used to clamp and secure the fixture. The gimbal arm is a shaped metal hose with an externally threaded connector at the end that threads into an internally threaded hole designed in the top of the clamp. A male connector at the front end of the gimbal arm threads into a threaded hole at the end of the auxiliary view camera assembly. A camera is mounted within the housing of the auxiliary view camera assembly, with the camera lens secured to the front opening of the housing. The camera's video signal cable is routed through the interior of the housing and then into the gimbal arm, exiting through the end of the arm for connection to an external image acquisition device.

[0006] The clamp has two structures, including a clamp structure 1 that cooperates with the bedside platform to clamp, and a clamp structure 2 that cooperates with the spreader handle to clamp.

[0007] The clamp structure 1 comprises a clamping frame, a knob, and a tightening end. The clamping frame is a C-shaped frame; the top plate has an upper threaded hole near the side plate. Conversely, the bottom plate has a lower threaded hole, located away from the side plate. The upper threaded hole is threadedly connected to the externally threaded connector at the end of the universal arm; the lower threaded hole is threadedly connected to the knob, which has an externally threaded rod. The rod has a handle at the bottom and a tightening end at the top. By turning the knob, the tightening end engages the top plate, clamping the bedside platform.

[0008] The second clamp structure comprises a connecting base, a sliding jaw, and a wiring connector. A fixed jaw is located on the left side of the bottom of the connecting base. Sliders are designed along the left and right sides of the front and rear sidewalls of the connecting base, slidably engaging with the left and right grooves on the upper portion of the sliding jaw. The sliding jaw is connected to the right side wall of the connecting base via a spring, and the spring's elasticity maintains the sliding jaw in a clamped state with the fixed jaw. During installation of the second clamp structure, the sliding jaw is moved to the right, compressing the spring and placing the clamped component between the two jaws. The sliding jaw is then released, releasing the spring and moving the sliding jaw toward the fixed jaw, clamping the component between the two jaws.

[0009] The connector has a hollow, cylindrical connection end in the middle of its top surface. Internally threaded holes are located on the top and sides of this connection end, connecting to the interior. The top internal threaded hole is designed to threadably connect to the externally threaded connector at the end of the universal arm, while the side threaded holes are designed to connect to the externally threaded inlet of the tubular wiring connector. Cables from the universal arm can enter the connection end through the end of the universal arm, then pass through the wiring connector and out the wiring connector outlet for connection to the image acquisition device.

[0010] The advantages of the present invention are:

[0011] 1. The universal arm of the present invention is used to assist in real-time acquisition of images of blind spots in the surgical field. The camera can be adjusted in any direction and angle, is flexible to use, and its position will not shift.

[0012] 2. The present invention is a universal arm for assisting in real-time acquisition of images in the blind area of ​​the surgical field. The communication cable of the camera can be routed inside the universal arm, avoiding the influence of external cables on the doctor's operation during the operation and reducing the difficulty of disinfection.

[0013] 3. The universal arm of the present invention is used to assist in real-time acquisition of images in the blind area of ​​the surgical field. The adjustment mode is changed from passive adjustment to active adjustment, which facilitates the operation of the doctor during the operation.

[0014] 4. The universal arm of the present invention is used for real-time auxiliary surgical field visual blind area image acquisition, which has a simple structure and greatly reduces the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the universal arm device of the present invention;

[0016] Figure 2 Schematic diagram of the fixture structure in the universal arm device of the present invention;

[0017] Figure 3 It is a side view of the clamp structure in the universal arm device of the present invention;

[0018] Figure 4 This is a cross-sectional view of the auxiliary viewing angle camera assembly structure in the universal arm device of the present invention;

[0019] Figure 5 Schematic diagram of the auxiliary viewing angle camera assembly in the universal arm device of the present invention;

[0020] Figure 6 Schematic diagram of another clamp structure in the universal arm device of the present invention;

[0021] Figure 7 Schematic diagram of the structure of a universal arm device using another type of clamp.

[0022] 1-Clamp 2-Universal Arm 3-Auxiliary View Camera Assembly

[0023] 4-Extension rod 101-Clamping frame 102-Knob

[0024] 103-tightening end 104-positioning groove 301-housing

[0025] 302-camera 303-transparent plate 304-camera fixing block

[0026] 305-washer 306-gasket 307-calibration groove

[0027] 1a-Connection seat 1b-Sliding clamp 1c-Cable connector

[0028] 1a1-Fixed clamp 1a2-Slider 1a3-Connection end

[0029] 1b1-chute DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The present invention is a universal arm device for real-time auxiliary operation of blind spot position image transmission, comprising a clamp 1, a universal arm 2 and an auxiliary viewing angle camera assembly 3, such as Figure 1 shown.

[0032] The clamp 1 includes a clamping frame 101, a knob 102 and a tightening end 103. Figure 2 The clamping frame 101 is a C-shaped frame consisting of a top plate, a bottom plate, and side plates. The top plate is parallel to the bottom plate. An upper threaded hole is provided on the top plate near the side plates, while a lower threaded hole is provided on the bottom plate away from the side plates.

[0033] Knob 102 is an externally threaded rod with a coaxial cross-shaped handle at its bottom. Its external threads engage the lower threaded hole on the bottom plate of the clamping frame 101. A coaxial hole is located at the top of knob 102, housing a frustoconical tightening end 103. The top surface (smaller diameter) of this tightening end 103 is coaxially designed with an externally threaded connector, which mates with the coaxial internally threaded groove at the top of knob 102 for securement.

[0034] The clamp 1 is used to cooperate with the fixed platform set by the bracket at the bedside to clamp the universal arm to the bedside; the fixed platform is set between the bottom surface (large diameter surface) of the tightening end 103 and the top plate of the clamping frame 101; by turning the knob 102, the bottom surface of the tightening end 103 and the top plate can be used to clamp the fixed platform. In order to prevent the clamp 1 from rotating horizontally between the fixed platform during use, a rectangular protrusion is designed on the upper surface of the fixed platform, and a positioning groove 104 that can be plugged into the rectangular protrusion is designed on the bottom surface of the top plate at the relative position of the tightening end 103. Therefore, when installing the clamp 1, first engage the rectangular protrusion on the fixed platform through the positioning groove 104, and then tighten the knob to clamp the clamp 1 and the fixed platform, as shown in FIG. Figure 3 shown.

[0035] The gimbal arm 2 is a shaped metal hose with externally threaded connectors at both ends. The externally threaded connector at the end of the gimbal arm 2 engages with a threaded hole on the top plate of the fixture 1, securing the gimbal arm 2 to the fixture. The externally threaded connector at the front end of the gimbal arm 2 is used to connect to the auxiliary view camera assembly. The gimbal arm allows the auxiliary view camera assembly 3 to be freely moved and fixed in position after movement.

[0036] The length of the universal arm 2 should not be too long, which will affect the shaping effect of the universal arm 2. Therefore, in order to prevent the length of the universal arm from being insufficient to allow the front auxiliary view camera assembly 3 to reach the required position, an extension rod 4 is designed to increase the moving range of the auxiliary view camera assembly 3, such as Figure 4 As shown. The extension rod 4 is a hollow rod; the front end of the extension rod 4 has an internal thread for threaded connection with the external threaded connector at the end of the universal arm 2, securing the extension rod 4 to the universal arm 2. The end of the extension rod 4 has an external threaded connector for threaded connection with the threaded hole on the top plate of the fixture 1, securing the extension rod 4 to the fixture 1. The internal threaded hole is tightened to secure the extension rod 4. The external threaded connector at the front end of the universal arm is used to connect to the auxiliary view camera assembly 3.

[0037] The auxiliary viewing angle camera assembly 3 includes a housing 301 and a camera 302. Figure 5The housing 301 is composed of a front shell and a rear shell. The external threads at the end of the front shell mate with the internal threads at the front end of the rear shell to form a cylindrical housing 301. Inside the housing 301, from front to back, are mounted a transparent plate 303, a camera 302, a camera fixing block 304, a washer 305, and a spacer 306.

[0038] The transparent plate 303 contacts the annular shoulder on the front circumference of the front shell to protect the lens of the camera 302 ; the outer ring of the lens of the camera 302 contacts the back side of the transparent plate 303 .

[0039] The camera fixing block 304 is an annular structure, and a rectangular card slot is designed at a corresponding position on the circumference of the front side. The card slot cooperates with the rectangular card head designed on the circumference of the end of the back side of the camera 302 to limit the circumferential rotation of the camera 302; at the same time, a card head is designed along the axial direction of the camera fixing block 304 at a corresponding position on the circumference of the outer wall of the camera fixing block 304, which cooperates with the card slot designed along the axial direction of the rear shell at a corresponding position on the circumference of the inner wall of the rear shell to limit the circumferential rotation of the camera fixing block.

[0040] The washer 305 contacts the back side of the camera fixing block 304 and the annular gasket 306; the annular gasket 306 contacts and limits the position of the annular shoulder designed circumferentially on the inner wall of the rear shell.

[0041] Through the above structure, the camera fixing block 304 is designed with a suitable axial thickness, so that after the front and rear shells are connected, the axial positions of the internal parts are fixed and no shaking occurs.

[0042] The video signal cable for camera 302 is routed through the center of camera fixing block 304, then through the center of gasket 305, then through the center of gasket 306, inside the rear housing, and then through the interior of universal arm 2. It is then connected to an image capture device via a waterproof connector installed at the end of universal arm 2 to prevent disinfectant from entering the device during disinfection. If an extension rod 4 is installed, the cable is further routed through the interior of extension rod 4, then through the end of extension rod 4 to connect to an image capture device. A waterproof connector is also installed at the end of extension rod 4. This prevents external cables from interfering with the doctor's operation and disinfection.

[0043] In the auxiliary viewing angle camera assembly, the outer wall of the rear shell is provided with a marking groove 307 along the axial direction of the rear shell to mark the viewing angle direction of the internal camera 302 for easy operation.

[0044] Through the universal arm of the above structure, the adjustment mode of the universal arm is changed from passive adjustment to active adjustment. The shooting position and shooting angle of the camera 302 can be manually and independently controlled, so that the camera 302 can be adjusted in any direction and angle. It is flexible to use and the position will not be offset, which facilitates the doctor's operation; and through the internal wiring method, it will not be affected by the camera cable during operation, and the difficulty of disinfection is reduced.

[0045] Further, the present invention also designs as follows Figure 3 The fixture 1 shown in the figure includes a connecting base 1a, a sliding clamping claw 1b and a wiring connector 1c.

[0046] Therefore, considering that the thoracotomy device used in thoracotomy can provide a platform for the installation of the universal arm, the design is such that a fixed clamping claw 1a1 is provided on the left side of the bottom surface of the connecting seat 1a; at the same time, a slider 1a2 is provided on the front and rear side walls of the connecting seat 1a along the left and right directions, which is used to cooperate with the left and right side grooves 1b1 on the upper part of the sliding clamping claw 1b for sliding connection. As a result, the sliding clamping claw 1b can slide along the slider 1a2 toward the fixed clamping claw 1a1. The sliding clamping claw 1b is connected to the right side wall of the connecting seat 1a by a spring, and the sliding clamping claw 1b is kept in a clamped state with the fixed clamping claw 1a1 by the elasticity of the spring. When installing this structural clamp 1, by moving the sliding clamping claw 1b to the right, the spring is compressed and the clamped part is placed between the two clamping claws. At this time, the sliding clamping claw is released, and the spring is released, causing the sliding clamping claw 1b to move toward the fixed clamping claw 1a1, and the clamped part is clamped by the two clamping claws.

[0047] The center of the top surface of the connector 1a features a hollow, columnar connection end 1a3. Internally threaded holes are located on the top and sides of this connection end 1a3, connecting to the interior. The top internal threaded hole is designed to threadably connect to the externally threaded connector at the end of the universal arm 2; the side threaded hole is designed to connect to the externally threaded inlet end of the tubular wiring connector 1c. This allows cables from the interior of the universal arm 2 to enter the connection end 1a2 through the end of the universal arm 2, then pass through the interior of the wiring connector 1c, and exit from the wiring connector 1c outlet for connection to the image acquisition device.

[0048] The universal arm device using the aforementioned clamp 1 is primarily designed for thoracotomy surgery. Because the surgical site is near the center of the bed, using the aforementioned clamp 1 to mount the universal arm at the bedside would not be long enough for the camera to position the image at that location. Furthermore, using an extension rod 4 to lengthen the universal arm would affect the surgeon's operation in that position. However, the clamp 1 can be placed on the handle of a spreader, with the bottom surface of the connecting seat 1a aligned with the top surface of the handle. The handle is then gripped with two clamping jaws to secure the universal arm. This meets the surgeon's need for multi-directional image acquisition during thoracotomy surgery without interfering with the surgeon's operation.

Claims

1. A universal arm device for real-time assisting in the acquisition of images in blind areas of the surgical field, characterized by: Including fixture, universal arm and auxiliary view camera assembly; The clamp is used to clamp and fix with a fixed object; The universal arm is a metal shaped hose, with an external threaded connector at the end that is threadedly connected to an internal threaded hole designed on the top of the fixture; the front end of the universal arm is designed with an external threaded connector that is threadedly connected to a threaded hole at the end of the auxiliary view camera assembly; A camera is mounted and fixed inside the housing of the auxiliary view camera assembly, and the camera lens is fixed at the front opening of the housing; the video signal cable of the camera is routed through the inside of the housing and the inside of the universal arm, and is led out through the end of the universal arm to connect to the external image acquisition device; The clamp has two structures, including a clamp structure 1 that cooperates with the bedside platform to clamp, and a clamp structure 2 that cooperates with the spreader handle to clamp; The clamp structure 1 includes a clamping frame, a knob, and a tightening end; wherein the clamping frame is a C-shaped frame; an upper threaded hole is provided on the top plate near the side plate; and a lower threaded hole is provided on the bottom plate away from the side plate; wherein the upper threaded hole is threadedly connected to the external threaded joint at the end of the universal arm; and the lower threaded hole is threadedly connected to the knob having an external threaded rod; the bottom end of the external threaded rod has a handle; and the top end is the tightening end; by turning the knob, the tightening end and the top plate cooperate to clamp the bedside platform; The second clamp structure includes a connecting seat, a sliding clamping claw and a wiring connector; a fixed clamping claw is provided on the left side of the bottom surface of the connecting seat; at the same time, sliders are designed on the left and right sides of the front and rear side walls of the connecting seat for sliding connection with the left and right side grooves on the upper part of the sliding clamping claw; the sliding clamping claw is connected to the right side wall of the connecting seat by a spring, and the elasticity of the spring keeps the sliding clamping claw in a clamping state with the fixed clamping claw; when installing the second clamp structure, the sliding clamping claw is moved to the right to compress the spring and place the clamped part between the two clamping claws. At this time, the sliding clamping claw is released, and the spring is released, causing the sliding clamping claw to move toward the fixed clamping claw, and the clamped part is clamped by the two clamping claws; The middle part of the top surface of the above-mentioned connecting seat has a hollow columnar structure connecting end; the top and side of the connecting end are both provided with internal threaded holes connected to the interior thereof; wherein, the top internal threaded hole is used to cooperate with the external threaded joint at the end of the universal arm for threaded connection and fixation; the side threaded hole is used to cooperate with the external thread of the incoming end of the cylindrical wiring joint for connection; the internal cables of the universal arm can enter the connecting end through the end of the universal arm, and then pass through the interior of the wiring joint, and be led out from the wiring joint outlet to connect to the image acquisition equipment.

2. A universal arm device for real-time assisting in blind area image acquisition in a surgical field as claimed in claim 1, characterized in that: There is also an extension rod to make up for the situation where the universal arm is not long enough; the extension rod is installed between the universal arm and the clamp, and is a hollow rod with an internal thread at the top that is threadedly connected to the external threaded joint at the bottom of the universal arm; the bottom end is an external threaded joint that is threadedly connected to the internal threaded hole at the top of the clamp.

3. The universal arm device for real-time assisting in blind area image acquisition in a surgical field according to claim 1, characterized in that: A waterproof connector is installed at the end of the universal arm.

4. The universal arm device for real-time assisting in blind area image acquisition in a surgical field as claimed in claim 2, characterized in that: Install a waterproof connector at the end of the extension rod.

5. The universal arm device for real-time assisting in blind area image acquisition in a surgical field according to claim 1, characterized in that: In the clamp structure one, a rectangular groove is designed on the bottom surface of the top plate opposite to the tightening end of the knob; at the same time, a rectangular protrusion is designed on the top surface of the bedside platform to match the rectangular groove; after the two are plugged in, the knob is turned to clamp the clamp structure one.

6. The universal arm device for real-time assisting in blind area image acquisition in the surgical field according to claim 1, characterized in that: The auxiliary viewing angle camera assembly includes an outer shell consisting of a front shell and a rear shell, which are threadedly connected to form a whole; a transparent plate, a camera, a camera fixing block, a gasket and a washer are installed in sequence inside the outer shell from front to back; wherein, the transparent plate contacts and limits the annular shoulder on the circumference of the front end of the front shell; the outer ring of the camera lens contacts the back side of the transparent plate; a rectangular card groove is designed at the corresponding position on the circumference of the front side of the camera fixing block, and the card groove cooperates with the rectangular card head designed on the circumference of the end of the back side of the camera to limit the circumferential rotation of the camera; at the same time, a card head is designed at the corresponding position on the circumference of the outer wall of the camera fixing block along the axial direction of the camera fixing block, which cooperates with the card groove designed at the corresponding position on the circumference of the inner wall of the rear shell along the axial direction of the rear shell to limit the circumferential rotation of the camera fixing block; the gasket contacts the back side of the camera fixing block and the annular gasket; the annular gasket contacts and limits the annular shoulder designed on the circumference of the inner wall of the rear shell; after the front and rear shells are connected, the axial positions of the internal parts are fixed.

7. The universal arm device for real-time assisting in blind area image acquisition in the surgical field according to claim 1, characterized in that: In the auxiliary viewing angle camera assembly, a calibration groove is designed at a relative circumferential position of the outer wall of the rear shell along the axial direction of the rear shell to mark the viewing angle direction of the internal camera.

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