Single-channel dual-medium endoscope integrated device with light source and imaging functions
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AFFILIATED RENHE HOSPITAL OF CHINA THREE GORGES UNIV
- Filing Date
- 2025-12-03
- Publication Date
- 2026-06-02
Smart Images
Figure CN121287006B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of surgical medical device technology, and in particular to a single-channel dual-media endoscope integrated device with light source and imaging functions. Background Technology
[0002] Minimally invasive spinal surgeries performed endoscopically are becoming increasingly common. Among these surgeries, the MED procedure requires a access tube. This access tube passes through the patient's skin with its tip aligned with the surgical area. The endoscope and surgical instruments are placed inside the access tube, which serves to position and guide them. These surgeries typically involve two surgical environments: one using air as the medium and the other using water. To improve the clarity of the surgical field in the water environment, a certain water pressure needs to be maintained inside the access tube. The switching between the two media is usually achieved by opening and closing the rear end of the access tube. When open, it is in air-medium operation mode; when closed, it is in water-medium operation mode.
[0003] Currently, the installation of surgical tubes typically relies on an external universal support mechanism for fixation. Specifically, one end of the universal support mechanism is fixed to the side of the operating table or other location, while the free end of the universal support mechanism is fixedly connected to the rear end of the surgical tube. Alignment between the surgical tube and the surgical area requires the universal support mechanism to swing in all directions. Because the universal support mechanism is a cantilever structure, adjusting the alignment between the surgical tube and the surgical area within the patient is extremely time-consuming, and the adjusted tube may shift, reducing the accuracy and efficiency of surgical instrument operation. Furthermore, existing surgical tubes usually have a camera mounted at an offset position at the front end, creating a blind spot relative to the surgical area, which affects the safety and accuracy of the surgical procedure. Additionally, while existing surgical tubes offer dual-media switching capabilities, the switching operation is inconvenient, impacting the overall surgical progress.
[0004] Therefore, this invention proposes a single-channel dual-media endoscope integrated device with light source and imaging functions. Summary of the Invention
[0005] The purpose of this invention is to provide a single-channel dual-media endoscope integrated device with light source and imaging functions to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A single-channel dual-media endoscope integrated device with light source and imaging functions includes a channel tube and a camera with a light source located at the front end of the channel tube. A dual-media switching cover is provided at the rear end of the channel tube. Three circumferentially distributed positioning grooves are formed on the inner wall of the channel tube. A positioning ring is sleeved inside the channel tube. Three cameras are fixedly connected to the front end of the positioning ring. A limiting block located in the positioning groove is fixedly connected to the positioning ring. At least one anchor point connection mechanism is slidably connected to the channel tube. The anchor point connection mechanism includes an outer tube, an inner locking rod, an arm, and a torsion spring. The outer tube is arranged parallel to the channel tube. A connecting groove is formed at the front end of the outer tube. One end of the arm is rotatably connected to the connecting groove, and a torsion spring is provided at the rotatable point. A locking insertion tube near the free end is fixedly connected to one side of the arm. A slot near the connecting groove is formed on the outer side of the arm. The inner locking rod is sleeved inside the outer tube, and the two are in a sealed sliding fit. One end of the inner locking rod is inserted into the slot.
[0008] As a further description of the above technical solution:
[0009] The channel tube has a positioning channel near its outer peripheral wall. The outer sleeve is fitted inside the positioning channel. The outer wall of the channel tube has a window near its rear end that communicates with the positioning channel. A seat plate passing through the window is fixedly connected to the outer wall of the outer sleeve. The other end of the inner locking rod is fixedly connected to a connecting plate located on one side of the seat plate. A guide shaft with a gap passing through the seat plate is fixedly connected to one side of the connecting plate. A support plate is fixedly connected to one end of the guide shaft. A support spring located between the support plate and the seat plate is fitted on the guide shaft.
[0010] As a further description of the above technical solution:
[0011] The positioning channel and the outer sleeve are slidably sealed together. A threaded sleeve close to the seat plate is fixedly connected to the outer peripheral wall of the channel tube. A screw is screwed into the threaded sleeve, and one end of the screw is opposite to one side of the outer sleeve.
[0012] As a further description of the above technical solution:
[0013] A connecting shaft is fixedly connected between the two sides of the connecting groove. One end of the arm has a connecting hole that is sleeved on the outside of the connecting shaft. Both sides of the arm have hidden grooves that are coaxial with the connecting hole. The torsion spring is located in the hidden groove.
[0014] As a further description of the above technical solution:
[0015] The locking cannula has a limiting groove on its inner peripheral wall, one end of which communicates with the inner cavity. A ball is partially inserted into the locking cannula in the limiting groove, and a spring is provided in the limiting groove, one end of which abuts against the outer wall of the ball.
[0016] As a further description of the above technical solution:
[0017] The dual-medium switching cover includes a sleeve cover, an annular sealing disc, and a soft rubber conical sleeve. The sleeve cover is fixedly fitted onto the rear end of the channel tube. The top end of the positioning groove extends to the top end of the channel tube. The annular sealing disc is located inside the sleeve cover, and its top wall is sealed to the top wall inside the sleeve cover. The lower wall of the annular sealing disc is fixedly connected to the large end of the soft rubber conical sleeve. A clearance opening opposite to the soft rubber conical sleeve is provided in the middle of the top of the sleeve cover. A drive shaft penetrating the top of the sleeve cover is fixedly connected to the upper end face of the annular sealing disc. The drive shaft and the sleeve cover are slidably sealed together.
[0018] As a further description of the above technical solution:
[0019] The number of drive shafts is three and they are evenly distributed around the annular sealing disc. A transition ring is fixedly connected to the top of the three drive shafts. A slotted frame is provided on the outside of the cover. The middle horizontal shaft on the slotted frame is hinged to the outer peripheral wall of the cover through an elastic telescopic rod. The free ends of the two straight rods on the slotted frame are rotatably connected to the peripheral wall of the cover. One side of the straight rod is hinged to the upper end of the transition ring through a connecting rod.
[0020] As a further description of the above technical solution:
[0021] The bottom end of the positioning groove extends to the front end of the channel tube. The limiting block and the positioning groove are slidably connected. The camera is fixedly installed at the front end of the limiting block. The inner peripheral wall of the channel tube is provided with a guide groove between two of the positioning grooves. The outer wall of the positioning ring is fixedly connected with a push-pull rod located in the guide groove. The push-pull rod is provided at the top of the sealing through-sleeve cover.
[0022] As a further description of the above technical solution:
[0023] One side of the push-pull rod is fixedly connected to an L-shaped clamping plate located outside the channel tube, and the outer peripheral wall of the channel tube is fixedly connected to a rack near the rear end, one side of which meshes with the side of the L-shaped clamping plate.
[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0025] 1. In this invention, an anchor point connection mechanism is provided on the channel tube. The anchor point connection structure includes an outer tube, an inner locking rod, an arm, and a torsion spring. The inner locking rod is sleeved inside the outer tube. The front ends of the arm and the outer tube are rotatably connected. A slot is opened on the outer side of the arm to engage with the front end of the inner locking rod. A locking insertion tube is fixedly connected to one side of the arm near the free end. With the slot and the inner locking rod engaged, the arm and the outer tube can be in two states: vertical and collinear. When collinear, it is convenient for the channel tube to pass through the wound on the surface of the patient's skin and reach the surgical area. When vertical, it is convenient for the locking insertion tube to be fixed to the locking insertion near the surgical area. This setting greatly reduces the time required for the alignment adjustment between the channel tube and the surgical area, improves the efficiency of the surgical operation, and reduces the cost compared with the prior art.
[0026] 2. In this invention, a seat plate, a support plate, a transmission shaft, a support spring, and a positioning channel are provided. The seat plate and the support plate are set outside the channel tube. By operating the seat plate and the support plate, the swing of the arm can be controlled and locked after swinging. It has the advantage of making it more convenient to control the hiding and outward swinging and locking operations of the arm. It greatly reduces the difficulty of the screw insertion operation of the outer tube and the pre-installed screws on the bones inside the patient's body.
[0027] 3. In this invention, a positioning ring is set at the front end of the channel tube, and three cameras are installed around the front end of the positioning ring. During the operation, the three cameras will be distributed around the surgical instruments, so that the three cameras can clearly obtain images of the surgical area, which has the advantages of eliminating blind spots in the surgical operation and improving the accuracy of the surgical operation.
[0028] 4. In this invention, a dual-medium switching cover is provided at the rear end of the channel tube. The function of the dual-medium switching cover is to enable the channel tube to quickly switch between water and air media environments. The dual-medium switching cover includes a sleeve cover, an annular sealing plate, and a soft rubber conical sleeve. A positioning groove is opened inside the channel tube. Then, by setting a groove-shaped frame, connecting rod, and elastic telescopic support rod, the opening and closing operation of the sleeve cover is made more convenient. The switching of the dual-medium surgical operation environment can be realized without disassembling the entire dual-medium switching cover, further improving the convenience of surgical operation. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention;
[0030] Figure 2 for Figure 1 A diagram at the bottom;
[0031] Figure 3 This is a schematic diagram of the anchor point connection mechanism and the structure of the channel tube after explosive unfolding of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention.
[0032] Figure 4 This is a schematic diagram of the locking cannula of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention.
[0033] Figure 5 for Figure 3 A detailed structural diagram illustrating the connection between the outer and inner outer tubes and the inner locking rod;
[0034] Figure 6 for Figure 2 A schematic diagram of the outer casing and boom after their explosive deployment;
[0035] Figure 7 for Figure 6 A diagram at the top;
[0036] Figure 8 This is a schematic diagram of the upper section of the arm of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention after entering the positioning channel.
[0037] Figure 9 This is a schematic diagram of the channel tube and push-pull rod of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention.
[0038] Figure 10 This is a schematic diagram of the dual-media switching cover of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention.
[0039] Figure 11 for Figure 1 A diagram at the bottom;
[0040] Figure 12 This is a plan view of the inside of the cover of a single-channel dual-media endoscope integrated device with light source and imaging functions proposed in this invention.
[0041] Legend:
[0042] 1. Channel tube; 11. Positioning groove; 12. Positioning channel; 13. Window; 14. Guide groove; 15. Threaded sleeve; 16. Flushing channel; 2. Camera; 3. Positioning ring; 31. Limiting block; 4. Outer tube; 41. Connecting groove; 411. Connecting shaft; 42. Seat plate; 5. Inner locking rod; 51. Connecting plate; 511. Guide shaft; 5111. Support plate; 6. Arm; 61. Locking insertion tube; 611. Limiting groove; 6111. Spring; 6112. Ball; 62. 63. Slot; 64. Connecting hole; 7. Hidden slot; 8. Torsion spring; 9. Screw; 101. Clearance round opening; 102. Annular sealing plate; 103. Drive shaft; 104. Soft rubber conical sleeve; 105. Slotted frame; 106. Intermediate horizontal shaft; 107. Straight rod; 108. Elastic telescopic rod; 109. Transition ring; 100. Push-pull rod; 101. L-shaped clamping plate; 102. Rack; 103. Support spring; 110. Connecting rod; 120. Sealing ring; 130. Screw. Detailed Implementation
[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0044] Example 1
[0045] Please see Figure 1-12 A single-channel dual-media endoscope integrated device with light source and imaging functions includes a channel tube 1 and a camera 2 with a light source located at the front end of the channel tube 1 (the end inside the body during use). The camera 2 is used to acquire images of the surgical area. Two flow guide tubes are fixedly connected to the outer wall of the channel tube 1. A flushing channel 16 is opened inside the channel tube 1 and communicates with the two flow guide tubes respectively. One end of the flushing channel 16 is located at the front end of the channel tube 1. A dual-media switching cover is provided at the rear end of the channel tube 1 (the end outside the body during use). The function of the dual-media switching cover is to control the opening and closing of the rear end of the channel tube 1. When the operation is performed in water medium according to the surgical needs, the rear end of the channel tube 1 is closed. Closing the cover can increase the pressure inside the channel tube 1, thereby improving the clarity of the surgical field. When the operation is performed in air medium, the rear end of the channel tube 1 can be closed by the dual-media switching cover.
[0046] The inner wall of the channel tube 1 has three circumferentially distributed positioning grooves 11. A positioning ring 3 is fitted inside the channel tube 1. Three cameras 2 are fixedly connected to the front end of the positioning ring 3. A limiting block 31 located in the positioning groove 11 is fixedly connected to the positioning ring 3. The function of the three circumferentially distributed cameras 2 is to eliminate blind spots in the surgery. The images acquired by the three cameras 2 are processed by the processor to form an image that can completely and clearly display the surgical area inside the patient's body. This setting can greatly reduce the difficulty of the surgeon's operation.
[0047] At least one anchor point connection mechanism is slidably connected to the channel tube 1. The function of the anchor point connection mechanism is to fix the channel tube 1 to the bone in the surgical area inside the body (screws 130 connected to the anchor point connection mechanism need to be pre-installed on the bone near the surgical area). The purpose is to improve the positioning accuracy of the channel tube 1 and the surgical area. Moreover, after installation through the anchor point connection mechanism, there is no need to make significant adjustments to the channel tube 1, saving adjustment time and improving surgical efficiency. Furthermore, compared with the existing technology where the channel tube 1 uses a bracket with an external complex mechanism, the cost of equipment investment is greatly reduced.
[0048] Specifically, the anchor point connection mechanism includes an outer sleeve 4, an inner locking rod 5, an arm 6, and a torsion spring 7. The outer sleeve 4 is arranged parallel to the channel tube 1, and a connecting groove 41 is opened at the front end of the outer sleeve 4. One end of the arm 6 is rotatably connected to the connecting groove 41, and a torsion spring 7 is provided at the rotatable point. In a preferred embodiment, a connecting shaft 411 is fixedly connected between the two sides inside the connecting groove 41. One end of the arm 6 has a connecting hole 63 sleeved outside the connecting shaft 411. Hidden grooves 64 coaxial with the connecting holes 63 are opened on both sides of the arm 6. The torsion spring 7 is located in the hidden groove 64. One end of the torsion spring 7 is fixedly connected to the bottom of the hidden groove 64, and the other end is fixedly connected to the bottom of the connecting groove 41. The side-fixed connection, the function of the torsion spring 7 is to drive the arm 6 away from the front end of the channel tube 1 and to be perpendicular to the outer tube 4 when the arm 6 is not subjected to other thrust. Specifically, the arm 6 and the outer tube 4 form an L-shape. A locking cannula 61 near the free end is fixedly connected to one side of the arm 6. When in use, the locking cannula 61 is opposite to the bone near the surgical area. The locking cannula 61 is fastened to the screw 130 pre-installed on the bone. After the insertion, the front end of the entire channel tube 1 is in a vertically aligned state with the surgical area, which facilitates the operation of surgical instruments through the channel tube 1 on the surgical area. The arm 6 has two slots 62 on its outer side, which are close to the connecting groove 41. When the arm 6 and the outer tube 4 form an L-shape, the first slot 62 and the front end of the outer tube 4 are directly opposite each other. The inner locking rod 5 is fitted inside the outer tube 4 and the two are in a sealed sliding fit. In practice, a rubber sleeve that is sealed and adapted to the inner locking rod 5 can be nested inside the front end of the outer tube 4. One end of the inner locking rod 5 is inserted into the slot 62. When one end of the inner locking rod 5 is inserted into the first slot 62, the arm 6, which forms an L-shape with the outer tube 4, will be locked, thereby effectively preventing the entire channel tube 1 from swinging. At this time, the surgeon can insert the surgical instruments from the rear end of the channel tube 1 and then extend them from the front end of the channel tube 1 to perform stable and reliable surgical operations on the surgical area. When the second slot 62 and the inner locking rod 5 are inserted, the arm 6 and the outer tube 4 are in a collinear state. At the same time, the compression of the torsion spring 7 increases. When the arm 6 and the outer tube 4 are in a collinear state, it is convenient for the channel tube 1 to pass through the wound on the patient's body surface.
[0049] In this embodiment, a positioning channel 12 is provided inside the channel tube 1 near its outer peripheral wall. The positioning channel 12 is parallel to the axis of the channel tube 1 and is not connected to the inner cavity of the channel tube 1. The outer sleeve 4 is fitted inside the positioning channel 12, which serves to conceal the outer sleeve 4. A window 13 is provided on the outer wall of the channel tube 1 near its rear end and connected to the positioning channel 12. A seat plate 42 passing through the window 13 is fixedly connected to the outer wall of the outer sleeve 4. The seat plate 42 is located outside the channel tube 1. The other end of the inner locking rod 5 is fixedly connected to a connecting plate 51 located on one side of the seat plate 42. Specifically, the connecting plate 51 is located above the seat plate 42, and a gap is fixedly connected to one side of the connecting plate 51 passing through the seat plate. In a specific implementation, the guide shaft 511 of plate 42 has a through hole that fits the guide shaft 511 with a clearance. One end of the guide shaft 511 is fixedly connected to a support plate 5111. A support spring 109 is sleeved on the guide shaft 511, located between the support plate 5111 and the plate 42. The function of the support spring 109 is to apply an elastic tension to the plate 42 and the support plate 5111. In use, when the support plate 5111 and the plate 42 are pressed against each other, the inner locking rod 5 will slide upward relative to the outer sleeve 4. At this time, the support spring 109 will be compressed. When the support plate 5111 or the plate 42 is released, the support spring 109 will drive the plate 42 and the support plate 5111 to move closer and fit together, thereby driving the inner locking rod 5 to move towards the connecting groove 41. The above configuration has the advantage of making the insertion and separation of the inner locking rod 5 and the slot 62 more convenient.
[0050] Furthermore, the positioning channel 12 and the outer sleeve 4 are slidably sealed together. In specific implementation, a sealing sleeve that is compatible with the outer wall of the outer sleeve 4 can be nested inside the front end of the positioning channel 12. The outer sleeve 4 can be manually slid along the positioning channel 12 by the seat plate 42. It should be noted that when the outer sleeve 4 slides upward, the arm 6 will rotate under the restriction of the front end of the channel tube 1 and enter the positioning channel 12. At this time, the compression of the torsion spring 7 will increase, that is, the arm 6 can be hidden by the positioning channel 12. By controlling the outer sleeve 4 to slowly slide downward along the positioning channel 12, the arm 6 will extend out of the positioning channel 12 and then slowly swing outward under the push of the torsion spring 7 until it is perpendicular to the outer sleeve 4. This setting can effectively prevent the arm 6 from swinging rapidly and damaging internal tissues or organs. The outer peripheral wall of the channel tube 1 is fixedly connected to a threaded sleeve 15 near the seat plate 42. The threaded sleeve 15 communicates with the inner cavity of the positioning channel 12. A screw 8 is screwed into the threaded sleeve 15. One end of the screw 8 is opposite to one side of the outer tube 4. When the screw 8 is tightened, one end of it will press against one side of the outer tube 4, and the outer tube 4 will be locked. It should be noted that the sliding arrangement of the positioning channel 12 and the outer tube 4 facilitates the adjustment of the distance between the channel tube 1 and the surgical area, thereby adapting to different surgical environments.
[0051] The specific implementation of the aforementioned locking cannula 61 and the screw 130 pre-installed on the bone for secure insertion is as follows: A limiting groove 611, with one end communicating with the inner cavity, is formed on the inner peripheral wall of the locking cannula 61. A ball 6112, partially extending into the locking cannula 61, is provided within the limiting groove 611. Specifically, the diameter of the hole at the transition between the limiting groove 611 and the locking cannula 61 is smaller than the diameter of the ball 6112. A spring 6111, with one end abutting against the outer wall of the ball 6112, is provided within the limiting groove 611. The spring 6111 causes the ball 6112 to press against the hole at the transition between the limiting groove 611 and the locking cannula 61. The structure of the screw 130 is as described above. Figure 2 As shown, a retaining plate is fixedly sleeved on the screw 130. The outer peripheral wall below the retaining plate on the screw 130 is a threaded part, and the area of the upper outer peripheral wall is the optical axis that is inserted into the locking tube 61. The outer wall of the optical axis has spherical grooves that are distributed around and adapted to the ball 6112. A cross screw head is provided at the tail of the optical axis. After the locking tube 61 and the optical axis are inserted, the ball 6112 will be stuck into one of the spherical grooves. At this time, the locking tube 61 will be limited by the optical axis and cannot rotate or move axially. Only by applying a certain driving force to the channel tube 1 can the locking tube 61 be moved relative to the optical axis.
[0052] It should be noted that the aforementioned method of stabilizing the channel tube 1 by connecting the locking cannula 61 and the optical axis can be used in surgical environments where the stability of the channel tube 1 is critical. In such cases, two sets of anchor point connection mechanisms can be installed on the channel tube 1. The angle between the positions of the two sets of anchor point connection mechanisms on the channel tube 1 is 120 degrees. Then, two screws 130 are installed in the surgical area. The distance between the two screws 130 is equal to the distance between the locking cannulas 61 on the two sets of anchor point connection mechanisms. The two screws 130, together with the two sets of anchor point connection mechanisms, can further improve the stability of the channel tube 1 in the human skeleton.
[0053] The aforementioned dual-medium switching cover has the following specific structure: it includes a cover 9, an annular sealing disc 101, and a soft rubber cone sleeve 102. The cover 9 is fixedly fitted onto the rear end of the channel tube 1, and the joint between the cover 9 and the channel tube 1 is in a sealed state. The top end of the positioning groove 11 extends to the top end of the channel tube 1, and the positioning groove 11 serves as a fluid flow channel. The annular sealing disc 101 is located inside the cover 9, and its top wall is sealed to the top wall inside the cover 9. Specifically, the top wall of the annular sealing disc 101 and the top of the cover 9 are pressed together to seal between them. In specific implementation, an annular groove is opened on the top wall inside the cover 9, and a sealing ring 120 is bonded inside the annular groove. The lower wall of the annular sealing disc 101 is fixedly connected to the large end of the soft rubber cone sleeve 102. The small end of the soft rubber cone sleeve 102 is the through-hole for surgical instruments. This small end can seal the gap between the soft rubber cone sleeve 102 and the surgical instrument by using elastic extrusion force. The top of the cover 9 has a relief round opening 91 opposite to the soft rubber cone sleeve 102 in the middle. The relief round opening 91 is a large notch for the surgical instrument to pass through. The setting of the soft rubber cone sleeve 102 can also facilitate the lateral swing of the surgical instrument, making it more flexible for the operator to operate the surgical instrument. After the surgical instrument passes through the small end of the soft rubber cone sleeve 102, the annular sealing disc 101 is then controlled to move upward to squeeze the sealing ring 120. At this time, the rear end of the channel tube 1 is in a closed and leak-free state. When the annular sealing disc 101 moves downward away from the sealing ring 120, the inner cavity of the channel tube 1 is connected to the outside through the three positioning grooves 11 and the relief round opening 91. The upper end face of the annular sealing disc 101 is fixedly connected to a drive shaft 1011 that passes through the top of the cover 9. The drive shaft 1011 and the cover 9 are slidably sealed together. In specific implementation, the top wall of the cover 9 has a through hole that is fitted outside the drive shaft 1011. A sealing sleeve fitted outside the drive shaft 1011 is nested in the through hole. By pulling the drive shaft 1011 up and down, the annular sealing disc 101 can be driven to move up and down.
[0054] Furthermore, there are three drive shafts 1011, evenly distributed circumferentially relative to the annular sealing disc 101. A transition ring 105 is fixedly connected to the top of each of the three drive shafts 1011. A slotted frame 103 is provided on the outside of the cover 9. The middle horizontal shaft 1031 on the slotted frame 103 is hinged to the outer peripheral wall of the cover 9 via an elastic telescopic rod 104. The elastic telescopic rod 104 is a two-section telescopic rod structure with a built-in pressure spring. The free ends of two straight rods 1032 on the slotted frame 103 are rotatably connected to the peripheral wall of the cover 9. Specifically, the outer peripheral wall of the cover 9 is fixedly connected to the shafts that are rotatably connected to the straight rods 1032. One side of the straight rod 1032 is hinged to the upper end of the transition ring 105 via a connecting rod 110. In use… When the channel frame 103 is in a horizontal state, the elastic telescopic rod 104 is also in a horizontal state and at its maximum compression state. In this state, the distances between the annular sealing plate 101 and the transition ring 105 and the cover 9 are equal. Therefore, when the channel frame 103 swings upward, the elastic telescopic rod 104 swings upward and applies an elastic thrust to the channel frame 103. After being pushed upward, the channel frame 103 swings upward, and then, under the push of the connecting rod 110, the transition ring 105 will drive the annular sealing plate 101 to move upward and squeeze the aforementioned sealing ring 120, thereby achieving the sealing function of the upper end of the channel pipe 1. Conversely, when the channel frame 103 swings down to its limit position, the transition ring 105 will press against the top wall of the cover 9, at which time the top of the channel pipe 1 is opened. This structure, which uses the up-and-down swinging of the channel frame 103 to achieve the opening and closing control of the top of the channel pipe 1, makes the dual-medium switching operation more convenient.
[0055] In this embodiment, the bottom end of the positioning groove 11 extends to the front end of the channel tube 1. The limiting block 31 and the positioning groove 11 are slidably connected. The camera 2 is fixedly installed at the front end of the limiting block 31. When the limiting block 31 moves, the position of the camera 2 can be adjusted to obtain a more accurate and clear field of view according to the surgical situation. The inner peripheral wall of the channel tube 1 is provided with a guide groove 14 located between two of the positioning grooves 11. The outer wall of the positioning ring 3 is fixedly connected with a push-pull rod 106 located in the guide groove 14. The push-pull rod 106 is provided to seal through the top of the cover 9. A wire channel is opened in the push-pull rod 106 for wiring, which facilitates the lead-out of the connection line with the camera 2 to the outside. At the same time, the push-pull rod 106 is a handheld part of the operator. When the operator pulls back and forth outside the channel tube 1, the position of the camera 2 can be adjusted by the positioning ring 3.
[0056] Furthermore, an L-shaped locking plate 1061 located outside the channel tube 1 is fixedly connected to one side of the push-pull rod 106. A rack 107 is fixedly connected to the outer peripheral wall of the channel tube 1 near the rear end and one side of the rack 1061 engages with the other side of the L-shaped locking plate 1061. In specific implementation, a row of teeth is fixedly provided on one side of the L-shaped locking plate 1061. When the teeth and the rack 107 engage, the L-shaped locking plate 1061 will be locked, thereby locking the camera 2. The L-shaped locking plate 1061 has elasticity. When it is pulled outward, it will disengage from the rack 107, thereby allowing the L-shaped locking plate 1061 to be pulled up and down, thereby adjusting the position of the camera 2. In specific implementation, a pull rod that is easy for the operator to hold can be fixedly connected to the outside of the L-shaped locking plate 1061.
[0057] Working principle: When using this device to connect with the patient, firstly, use a tool to install screw 130 on the bone near the surgical area. At this time, screw 130 is in a fixed state. Then, pass the front end of the channel tube 1 through the wound on the human skin. Then, manually push the outer tube 4 through the seat plate 42, so that the arm 6 at the front end of the outer tube 4 extends out of the positioning channel 12. During the pushing process, the arm 6 will swing outward under the push of the torsion spring 7. When the arm 6 swings outward and is perpendicular to the outer tube 4, the support plate 5111 will move towards the seat plate 42 under the push of the support spring 109. At the same time, the inner locking rod 5 will be inserted into a slot 62 on the arm 6, and the arm 6 will be locked. The auxiliary lighting of the lighting lamp around the front end of the camera 2 lowers the locking tube 61 and fits it onto the optical axis of screw 130. At this time, the ball 6112 is engaged with one of the spherical grooves. Then, push the channel tube 1 horizontally with force so that the front end of the channel tube 1 is opposite to the surgical area. During this process, the ball 6112 will engage and disengage with different spherical grooves. At this point, the connection between the channel tube 1 and the bone is completed. Then, the three cameras 2 are electrically connected to the processor and an external display screen, which displays the image of the surgical area. Finally, the surgeon holds the surgical instrument and passes it through the transition ring 105 and the clearance opening, then through the small end of the soft rubber conical sleeve 102, so that the front end of the surgical instrument reaches the surgical area. Finally, the surgeon operates the surgical instrument to perform the operation. When it is necessary to perform the operation in an aqueous environment, the slot frame 103 is manually pulled upward. The slot frame 103 swings upward and drives the transition ring 105 upward through the connecting rod 110. The transition ring 105 drives the annular sealing plate 101 upward through the drive shaft 1011 to press against the sealing ring 120. At this time, the rear end of the channel tube 1 is closed, thus allowing the operation to be performed in an aqueous annular environment.
[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A single-channel dual-media endoscope integrated device with light source and imaging functions, comprising a channel tube (1) and a camera (2) with a light source located at the front end of the channel tube (1), wherein a dual-media switching cover is provided at the rear end of the channel tube (1), characterized in that, The inner wall of the channel tube (1) is provided with three circumferentially distributed positioning grooves (11). A positioning ring (3) is fitted inside the channel tube (1). Three cameras (2) are fixedly connected to the front end of the positioning ring (3). A limiting block (31) located in the positioning groove (11) is fixedly connected to the positioning ring (3). At least one anchor point connection mechanism is slidably connected to the channel tube (1). The anchor point connection mechanism includes an outer tube (4), an inner locking rod (5), an arm (6), and a torsion spring (7). The outer tube (4) is arranged in parallel. On the channel tube (1), the front end of the outer tube (4) is provided with a connecting groove (41), one end of the arm (6) is rotatably connected to the connecting groove (41) and a torsion spring (7) is provided at the rotation point, one side of the arm (6) is fixedly connected to a locking insertion tube (61) near the free end, the outer side of the arm (6) is provided with a slot (62) near the connecting groove (41), the inner locking rod (5) is sleeved in the outer tube (4) and the two are sealed and slidingly fitted, one end of the inner locking rod (5) is inserted into the slot (62).
2. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 1, characterized in that, The channel tube (1) has a positioning channel (12) near the outer peripheral wall. The outer sleeve (4) is fitted inside the positioning channel (12). The outer wall of the channel tube (1) has a window (13) near the rear end and connected to the positioning channel (12). The outer wall of the outer sleeve (4) is fixedly connected to a seat plate (42) that passes through the window (13). The other end of the inner locking rod (5) is fixedly connected to a connecting plate (51) located on one side of the seat plate (42). One side of the connecting plate (51) is fixedly connected to a guide shaft (511) that passes through the seat plate (42). One end of the guide shaft (511) is fixedly connected to a support plate (5111). A support spring (109) is fitted on the guide shaft (511) between the support plate (5111) and the seat plate (42).
3. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 2, characterized in that, The positioning channel (12) and the outer sleeve (4) are slidably sealed together. The outer peripheral wall of the channel tube (1) is fixedly connected to a threaded sleeve (15) near the seat plate (42). A screw (8) is screwed into the threaded sleeve (15). One end of the screw (8) is opposite to one side of the outer sleeve (4).
4. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 1, characterized in that, A connecting shaft (411) is fixedly connected between the two sides of the connecting groove (41). One end of the arm (6) is provided with a connecting hole (63) sleeved on the outside of the connecting shaft (411). The two sides of the arm (6) are provided with hidden grooves (64) coaxial with the connecting hole (63). The torsion spring (7) is located in the hidden groove (64).
5. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 1, characterized in that, The inner peripheral wall of the locking cannula (61) has a limiting groove (611) that communicates with the inner cavity at one end. A ball (6112) that extends into the locking cannula (61) is provided in the limiting groove (611). A spring (6111) that abuts against the outer wall of the ball (6112) is provided in the limiting groove (611).
6. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 1, characterized in that, The dual-medium switching cover includes a sleeve cover (9), an annular sealing disc (101), and a soft rubber conical sleeve (102). The sleeve cover (9) is fixedly sleeved on the rear end of the channel tube (1). The top end of the positioning groove (11) extends to the top end of the channel tube (1). The annular sealing disc (101) is located inside the sleeve cover (9) and its top wall is sealed to the top wall inside the sleeve cover (9). The lower wall of the annular sealing disc (101) is fixedly connected to the large end of the soft rubber conical sleeve (102). A clearance round opening (91) opposite to the soft rubber conical sleeve (102) is opened in the middle of the top of the sleeve cover (9). A drive shaft (1011) penetrating the top of the sleeve cover (9) is fixedly connected to the upper end face of the annular sealing disc (101). The drive shaft (1011) and the sleeve cover (9) are slidably sealed together.
7. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 6, characterized in that, The number of drive shafts (1011) is three and they are evenly distributed around the annular sealing plate (101). A transition ring (105) is fixedly connected to the top of the three drive shafts (1011). A slotted frame (103) is provided on the outside of the cover (9). The middle horizontal shaft (1031) on the slotted frame (103) is hinged to the outer peripheral wall of the cover (9) through an elastic telescopic rod (104). The free ends of the two straight rods (1032) on the slotted frame (103) are rotatably connected to the peripheral wall of the cover (9). One side of the straight rod (1032) is hinged to the upper end of the transition ring (105) through a connecting rod (110).
8. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 6, characterized in that, The bottom end of the positioning groove (11) extends to the front end of the channel tube (1). The limiting block (31) and the positioning groove (11) are slidably connected. The camera (2) is fixedly installed at the front end of the limiting block (31). The inner peripheral wall of the channel tube (1) is provided with a guide groove (14) located between two of the positioning grooves (11). The outer wall of the positioning ring (3) is fixedly connected with a push-pull rod (106) located in the guide groove (14). The push-pull rod (106) is set at the top of the sealing through sleeve cover (9).
9. The single-channel dual-media endoscope integrated device with light source and imaging functions according to claim 8, characterized in that, The push-pull rod (106) is fixedly connected to an L-shaped card plate (1061) located outside the channel tube (1) on one side, and a toothed rack (107) is fixedly connected to the outer peripheral wall of the channel tube (1) near the rear end and one side of the rack meshes with the L-shaped card plate (1061).