Arthroscope operating device for atlantoaxial joint

Abstract

The invention belongs to the field of medical auxiliary instruments, and particularly relates to an arthroscope operating device for an atlantoaxial joint, the arthroscope operating device comprises a fixing assembly, an atlantoaxial joint spreader, a supporting assembly, a telescopic arthroscope sheath and an operating channel, and the atlantoaxial joint spreader is of an independent structure. By arranging the embedded arc plate, the atlantoaxial joint can be protected by embedding the embedded arc plate into the side of the atlantoaxial joint, the prying knife is inserted between the atlantoaxial joints by holding the handle, the prying knife is arc-shaped, namely the atlantoaxial joint is opened by rotating the handle, and the sealing structure is arranged above the operation opening, so that the atlantoaxial joint can be sealed, and the atlantoaxial joint can be protected. Before an operation, the operation opening of the device is placed over the atlantoaxial joint, operation equipment can penetrate through the operation opening to conduct the operation on the atlantoaxial joint, the flat plate can rotate around the rotating shaft, then the clamping block is clamped in the fixing groove, and the flowing-out speed of flowing water can be controlled.

Description

Technical Field

[0001] The invention belongs to the field of medical auxiliary instruments, and in particular relates to an arthroscopic operating device for an atlantoaxial joint. Background Art

[0002] 1. Atlantoaxial joint

[0003] The atlantoaxial joint is a special joint in the human neck, mainly composed of the first cervical vertebra (atlas) and the second cervical vertebra (axis). This joint allows the head to perform various movements, especially rotation and flexion and extension. The following is an introduction to the atlantoaxial joint.

[0004] 1. Atlas (C1):

[0005] Shape: The atlas has no vertebral body and is ring-shaped, mainly composed of anterior arch and posterior arch.

[0006] Structure: There is a small anterior tubercle in front of the anterior arch and a larger posterior tubercle behind the posterior arch.

[0007] 2. Axis (C2):

[0008] Shape: The axis has a raised odontoid process that fits into the annular structure of the atlas.

[0009] Function: The odontoid process inserts into the annulus of the atlas, forming an axis of rotation.

[0010] 2. Arthroscopy

[0011] An arthroscope is a medical device used for joint examination and treatment. It is a slender tubular instrument with a camera and light source at the front end. The arthroscope is inserted into the joint through a small incision, and the doctor can observe the structure and lesions of the joint on a display screen.

[0012] 1. Main functions

[0013] Diagnosis: Helps doctors observe the internal conditions of joints and diagnose diseases such as cartilage damage, ligament tears, and arthritis.

[0014] Treatment: While observing, the doctor can perform treatment, such as repairing damaged cartilage, removing loose bodies, cleaning inflammatory tissue, polishing the cartilage surface for bone grafting and fusion, etc.

[0015] 2. Advantages

[0016] Minimally invasive: Compared with traditional open surgery, it has smaller incisions, less trauma, and faster recovery;

[0017] Clear vision: Provides high-resolution images to help doctors make accurate diagnosis and treatment;

[0018] Fewer complications: Due to the small trauma, the risk of bleeding and infection is relatively low.

[0019] The existing publication number CN216495241U discloses a hospital orthopedic arthroscopic surgery auxiliary device, including a telescopic cylinder and a retaining ring, a pneumatic telescopic rod is arranged inside the telescopic cylinder, one end of the telescopic pneumatic telescopic rod is fixedly connected to a trachea, a control valve is arranged outside the trachea, an air pump is fixedly connected to the other end of the trachea, the other end of the pneumatic telescopic rod is fixedly connected to a connecting pipe, an endoscope is arranged on the top of the connecting pipe, a slide groove is arranged outside the pneumatic telescopic rod, a sliding ball is arranged inside the slide groove, the sliding ball is slidably connected to the pneumatic telescopic rod, a retaining ring is arranged outside the telescopic cylinder, an adjusting spring is fixedly connected inside the retaining ring, and a spherical connecting block is rotatably connected to the bottom end of the retaining ring.

[0020] The existing arthroscopic operating devices for atlantoaxial joints still have the following shortcomings:

[0021] 1. When performing surgery on a dislocated atlantoaxial joint, the atlantoaxial joint needs to be loosened and distracted to reduce its position.

[0022] 2. Due to the anatomical position of the atlantoaxial joint and its special relationship with adjacent important nerves and blood vessels, current routine arthroscopic operations increase the risk of damage to important blood vessels and nerves.

[0023] 3. During surgery, not only the joints need to be fixed, but the entire device also needs to be fixed to ensure the stability of the device. Summary of the invention

[0024] The purpose of the present invention is to address the problem raised in the above background technology that when performing surgery on a dislocated atlantoaxial joint, the atlantoaxial joint needs to be stretched, loosened and repositioned. Due to the special anatomy of the atlantoaxial joint and its important adjacent parts (vertebral artery and cervical spinal cord), in order to prevent damage, the human body muscles and skin need to be cut open to expose the atlantoaxial joint. When performing arthroscopic surgery, a device is needed. In order to ensure the stability of the device, the device as a whole needs to be fixed. An arthroscopic operating device for the atlantoaxial joint is provided.

[0025] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: an arthroscopic operating device for an atlantoaxial joint, comprising a fixing assembly, an atlantoaxial joint spreader, a supporting assembly, a retractable arthroscopic sheath and an operating channel, wherein the atlantoaxial joint spreader is an independent structure, the retractable arthroscopic sheath and the operating channel are arranged on the side of the fixing assembly, the supporting assembly is inside the fixing assembly, the fixing assembly comprises a fixing plate, the side of the fixing plate is fixedly connected with an embedded arc plate, a baffle is fixedly connected between the two sides of the embedded arc plates, and the retractable arthroscopic sheath and the operating channel are both arranged on the outer side of the fixing plate.

[0026] Furthermore, the atlantoaxial joint spreader includes a handle, a prying tool is fixedly connected to the end of the handle, an edge portion of the prying tool is configured to be in an arc shape, and the entire prying tool is configured to be in an arc shape.

[0027] Furthermore, the retractable arthroscopic sheath includes an elastic base, the elastic base is fixedly connected to the side of the fixed plate, the upper surface of the elastic base is fixedly connected to the retractable sheath body, the side of the retractable sheath body is fixedly connected to a water inlet pipe, and a control valve is arranged in the water inlet pipe.

[0028] Furthermore, the operation channel includes an operation port, the operation port is arranged on the upper surface of the fixing plate, the operation port is arranged on one side of the retractable arthroscopic sheath, and a sealing structure is arranged above the operation port.

[0029] Furthermore, the sealing structure includes a fixing groove, which is fixedly connected to the upper surface of the fixing plate, and the fixing groove is arranged on the outer side of the operating port. The upper surface of the fixing plate is fixedly connected to a fixing seat, and a rotating shaft is rotatably connected between the fixing seats. A flat plate is fixedly connected to the side of the rotating shaft, and a notch is arranged on the upper surface of the flat plate, and the inner diameter of the notch is half of the inner diameter of the operating port. A clamping block is fixedly connected to the lower surface of the flat plate, and the clamping block is clamped and connected in the fixing groove.

[0030] Furthermore, two built-in grooves are provided on the inner side of the fixing plate, the built-in grooves are provided between the retractable arthroscopic sheath and the operation channel, two slide grooves are provided between the built-in grooves and the sides of the fixing plate, and the support assembly is provided in the built-in grooves and the slide grooves.

[0031] Furthermore, the supporting assembly includes a No. 1 gear and two No. 2 gears, the No. 1 gear and the No. 2 gears are both rotatably connected to the inner side of the built-in groove, the No. 1 gear is arranged between the No. 2 gears, the No. 1 gear and the No. 2 gears are meshed with each other, the side of the No. 1 gear is fixedly connected to a connecting seat, the side of the connecting seat away from the No. 1 gear is fixedly connected to a rotating handle, and the rotating handle passes through and extends to the side of the fixed plate.

[0032] Furthermore, a transmission gear is fixedly connected to the side of the No. 2 gear, a transmission rod is slidably connected in the slide groove, a plurality of tooth grooves are evenly arranged on the side of the transmission rod close to the transmission gear, the transmission gear is meshingly connected in the tooth grooves, and a supporting top piece is fixedly connected to the top of the transmission rod, the supporting top piece is arranged in a "concave" shape, and a plurality of grooves are arranged on the top of the supporting top piece.

[0033] Compared with the existing technology, the advantages of the arthroscopic operating device for the atlantoaxial joint are:

[0034] 1. The present invention is provided with an embedded arc plate, that is, the embedded arc plate can be embedded into the side of the atlantoaxial joint to protect the atlantoaxial joint. By holding the handle, the prying tool is inserted between the atlantoaxial joints. Because the prying tool is arranged in an arc shape, the atlantoaxial joint can be opened by rotating the handle. By arranging a sealing structure above the operating port, the operating port of the device is placed directly above the atlantoaxial joint before surgery, and the operating device can be passed through the operating port to perform surgery on the atlantoaxial joint. The plate can be rotated around the rotating shaft to engage the clamping block in the fixing groove, so that the speed of water outflow can be controlled.

[0035] 2. The present invention is provided with a retractable arthroscopic sheath, in which an arthroscope can be implanted. For irreducible atlantoaxial dislocation, scar tissue in front of the atlantoaxial joint can be released under direct vision of the arthroscope, which is beneficial to the reduction of the atlantoaxial joint and can avoid anterior surgical release of the atlantoaxial joint through the oral pharynx. At the same time, the articular cartilage can be polished under the arthroscopy, which is beneficial to the fusion of the atlantoaxial joint and improves the effect of surgical treatment. The water inlet speed is controlled by a control valve, and the water in the water inlet pipe can transport water to the atlantoaxial joint, thereby flushing out excess blood and water, providing a clear field of vision for the operation.

[0036] 3. The present invention provides a support assembly inside the fixing plate. After the device is placed inside the atlantoaxial joint, to ensure that the device can be fixed inside the human body, the handle can be turned to drive the No. 1 gear to rotate, which drives the No. 2 gear to rotate, thereby driving the transmission gear to rotate, and then controlling the lifting and lowering of the transmission rod, so that the supporting top pieces on both sides are supported between the atlas and the axis, and a plurality of grooves are provided at the top of the supporting top piece, which can strengthen the friction force of the upper end of the supporting top piece, thereby strengthening the fixation of the atlantoaxial joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of an arthroscopic operating device for an atlantoaxial joint provided by the present invention, viewed from the front side;

[0038] Figure 2 yes Figure 1 A magnified view of part A;

[0039] Figure 3 It is a schematic diagram of the structure of an arthroscopic operating device for an atlantoaxial joint provided by the present invention, viewed from the rear side;

[0040] Figure 4 yes Figure 3 A magnified view of part B;

[0041] Figure 5 It is a schematic structural diagram of an arthroscopic operating device for an atlantoaxial joint provided by the present invention, viewed from the bottom;

[0042] Figure 6It is a structural schematic diagram of a support assembly of an arthroscopic operating device for an atlantoaxial joint provided by the present invention;

[0043] Figure 7 It is a structural schematic diagram of an atlantoaxial joint spreader of an arthroscopic operating device for an atlantoaxial joint provided by the present invention.

[0044] In the figure, 1 is a fixing plate, 2 is an embedded arc plate, 3 is a baffle, 4 is an operating port, 5 is a fixing seat, 6 is a rotating shaft, 7 is a flat plate, 8 is a notch, 9 is a block, 10 is a fixing groove, 11 is an elastic base, 12 is a telescopic mirror sheath, 13 is a water inlet pipe, 14 is a control valve, 15 is a rotating handle, 16 is a connecting seat, 17 is a No. 1 gear, 18 is a No. 2 gear, 19 is a transmission gear, 20 is a transmission rod, 21 is a tooth groove, 22 is a supporting top piece, 23 is a groove, 24 is a handle, and 25 is a pry tool. DETAILED DESCRIPTION

[0045] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0046] like Figure 1-Figure 7 As shown, an arthroscopic operating device for an atlantoaxial joint comprises a fixing assembly, an atlantoaxial joint spreader, a supporting assembly, a retractable arthroscopic sheath and an operating channel, wherein the atlantoaxial joint spreader is an independent structure, the retractable arthroscopic sheath and the operating channel are arranged on the side of the fixing assembly, the supporting assembly is inside the fixing assembly, the fixing assembly comprises a fixing plate 1, an embedded arc plate 2 is fixedly connected to the side of the fixing plate 1, by providing the embedded arc plate 2, the embedded arc plate 2 can be embedded into the side of the atlantoaxial joint, thereby protecting the atlantoaxial joint, a baffle 3 is fixedly connected between the sides of the two embedded arc plates 2, and the retractable arthroscopic sheath and the operating channel are both arranged on the outer side of the fixing plate 1;

[0047] The atlantoaxial joint spreader includes a handle 24, a prying tool 25 is fixedly connected to the end of the handle 24, the edge of the prying tool 25 is arranged in an arc shape, and the entire prying tool 25 is arranged in an arc shape. By holding the handle 24, the prying tool 25 is inserted between the atlantoaxial joints, and because the prying tool 25 is arranged in an arc shape, the atlantoaxial joint is spread open by rotating the handle 24;

[0048] The retractable arthroscopic sheath includes an elastic base 11, which is fixedly connected to the side of the fixing plate 1, and the upper surface of the elastic base 11 is fixedly connected to a retractable sheath body 12, and the side of the retractable sheath body 12 is fixedly connected to a water inlet pipe 13, and a control valve 14 is arranged in the water inlet pipe 13. By arranging the retractable arthroscopic sheath, an arthroscope can be implanted in the retractable sheath body 12, and for irreducible atlantoaxial dislocation, scar tissue in front of the atlantoaxial joint is released under direct vision of the arthroscope, which is beneficial to the reduction of the atlantoaxial joint, and can avoid the anterior surgical release of the atlantoaxial joint through the oral pharynx. At the same time, the articular cartilage is polished under the arthroscopy, which is beneficial to the fusion of the atlantoaxial joint and improves the surgical treatment effect. The speed of water inlet is controlled by the control valve 14, and the water in the water inlet pipe 13 can transport water to the atlantoaxial joint, thereby flushing away excess blood and water, providing a clear field of vision for the operation;

[0049] The operation channel includes an operation port 4, which is arranged on the upper surface of the fixing plate 1, and the operation port 4 is arranged on one side of the retractable arthroscopic sheath, and a sealing structure is arranged above the operation port 4;

[0050] The sealing structure includes a fixing groove 10, which is fixedly connected to the upper surface of the fixing plate 1. The fixing groove 10 is arranged on the outer side of the operation port 4. The upper surface of the fixing plate 1 is fixedly connected with a fixing seat 5. A rotating shaft 6 is rotatably connected between the fixing seats 5. A flat plate 7 is fixedly connected to the side of the rotating shaft 6. A notch 8 is arranged on the upper surface of the flat plate 7. The inner diameter of the notch 8 is half of the inner diameter of the operation port 4. A clamping block 9 is fixedly connected to the lower surface of the flat plate 7. The clamping block 9 is clamped and connected in the fixing groove 10. By arranging the sealing structure above the operation port 4, the operation port 4 of the device is placed just above the atlantoaxial joint before the operation. The operation device can be passed through the operation port 4 to perform the operation on the atlantoaxial joint. The speed of the water outflow can be controlled by rotating the flat plate 7 around the rotating shaft 6, and then the clamping block 9 is clamped in the fixing groove 10.

[0051] Two built-in grooves are arranged on the inner side of the fixing plate 1, and the built-in grooves are arranged between the retractable arthroscopic sheath and the operation channel. Two slide grooves are arranged between the built-in grooves and the side surfaces of the fixing plate 1, and the support components are arranged in the built-in grooves and the slide grooves;

[0052] The supporting assembly includes a No. 1 gear 17 and two No. 2 gears 18. The No. 1 gear 17 and the No. 2 gears 18 are both rotatably connected to the inner side of the built-in groove. The No. 1 gear 17 is arranged between the No. 2 gears 18. The No. 1 gear 17 and the No. 2 gears 18 are meshed with each other. A connecting seat 16 is fixedly connected to the side of the No. 1 gear 17. A rotating handle 15 is fixedly connected to the side of the connecting seat 16 away from the No. 1 gear 17. The rotating handle 15 penetrates and extends to the side of the fixed plate 1.

[0053] A transmission gear 19 is fixedly connected to the side of the second gear 18, and a transmission rod 20 is slidably connected in the slide groove. A plurality of tooth grooves 21 are evenly arranged on the side of the transmission rod 20 near the transmission gear 19, and the transmission gear 19 is meshed and connected in the tooth grooves 21. A support top piece 22 is fixedly connected to the top of the transmission rod 20. The support top piece 22 is set in a "concave" shape, and a plurality of grooves 23 are set at the top of the support top piece 22. By setting a support component inside the fixing plate 1, after the device is placed inside the atlantoaxial joint, in order to ensure that the device can be fixed inside the human body, the rotating handle 15 can be turned to drive the first gear 17 to rotate, and by driving the rotation of the second gear 18, the transmission gear 19 is driven to rotate, thereby controlling the lifting and lowering of the transmission rod 20, so that the support top pieces 22 on both sides are supported between the atlas and the axis, and the top of the support top piece 22 is provided with a plurality of grooves 23, which can strengthen the friction force on the upper end of the support top piece 22, thereby strengthening the fixation of the atlantoaxial joint.

[0054] The working principle of the present invention is as follows:

[0055] By providing the embedded arc plate 2, the embedded arc plate 2 can be embedded into the side of the atlantoaxial joint to protect the atlantoaxial joint. By holding the handle 24, the prying knife 25 is inserted between the atlantoaxial joints. Because the prying knife 25 is arranged in an arc shape, the atlantoaxial joint can be opened by rotating the handle 24. By providing a sealing structure above the operating port 4, the operating port 4 of the device is placed just above the atlantoaxial joint before surgery. The operating device can be passed through the operating port 4 to perform surgery on the atlantoaxial joint. The plate 7 can be rotated around the rotating shaft 6 to engage the clamping block 9 in the fixing groove 10, so that the speed of the water outflow can be controlled.

[0056] By providing a retractable arthroscopic sheath, an arthroscopy can be implanted in the retractable sheath body 12. For irreducible atlantoaxial dislocation, scar tissue in front of the atlantoaxial joint can be loosened under direct vision of the arthroscopy, which is beneficial to the reduction of the atlantoaxial joint and can avoid performing anterior surgical loosening of the atlantoaxial joint through the oral pharynx. At the same time, articular cartilage can be polished under the arthroscopy, which is beneficial to the fusion of the atlantoaxial joint and improves the surgical treatment effect. The water inlet speed is controlled by the control valve 14, and the water in the water inlet pipe 13 can transport water to the atlantoaxial joint, thereby flushing excess blood and water, providing a clear field of view for the operation;

[0057] By providing a support assembly inside the fixing plate 1, after the device is placed inside the atlantoaxial joint, in order to ensure that the device can be fixed inside the human body, the rotating handle 15 can be turned to drive the No. 1 gear 17 to rotate, and the No. 2 gear 18 can be driven to rotate, thereby driving the transmission gear 19 to rotate, and then controlling the lifting and lowering of the transmission rod 20, so that the support top pieces 22 on both sides are supported between the atlas and the axis, and a plurality of grooves 23 are provided at the top of the support top piece 22, which can strengthen the friction force of the upper end of the support top piece 22, thereby strengthening the fixation of the atlantoaxial joint.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arthroscopic operating device for atlantoaxial joint, characterized in that: The invention comprises a fixing component, an atlantoaxial joint spreader, a supporting component, a retractable arthroscopic sheath and an operating channel, wherein the atlantoaxial joint spreader is an independent structure, the retractable arthroscopic sheath and the operating channel are arranged on the side of the fixing component, the supporting component is inside the fixing component, the fixing component comprises a fixing plate (1), the side of the fixing plate (1) is fixedly connected with an embedded arc plate (2), a baffle (3) is fixedly connected between the sides of the two embedded arc plates (2), and the retractable arthroscopic sheath and the operating channel are both arranged on the outer side of the fixing plate (1).

2. The arthroscopic manipulation device for the atlantoaxial joint according to claim 1, characterized in that: The atlantoaxial joint spreader comprises a handle (24), the end of the handle (24) is fixedly connected with a prying knife (25), the edge of the prying knife (25) is arranged in an arc shape, and the entirety of the prying knife (25) is arranged in an arc shape.

3. The arthroscopic operating device for the atlantoaxial joint according to claim 1, characterized in that: The telescopic arthroscopic sheath comprises an elastic base (11), wherein the elastic base (11) is fixedly connected to the side of a fixed plate (1), the upper surface of the elastic base (11) is fixedly connected to a telescopic sheath body (12), the side of the telescopic sheath body (12) is fixedly connected to a water inlet pipe (13), and a control valve (14) is arranged in the water inlet pipe (13).

4. The arthroscopic manipulation device for the atlantoaxial joint according to claim 1, characterized in that: The operation channel comprises an operation port (4), the operation port (4) is arranged on the upper surface of the fixing plate (1), the operation port (4) is arranged on one side of the retractable arthroscopic sheath, and a sealing structure is arranged above the operation port (4).

5. The arthroscopic manipulation device for the atlantoaxial joint according to claim 4, characterized in that: The sealing structure comprises a fixing groove (10), wherein the fixing groove (10) is fixedly connected to the upper surface of the fixing plate (1), wherein the fixing groove (10) is arranged on the outer side of the operating port (4), wherein the upper surface of the fixing plate (1) is fixedly connected to a fixing seat (5), wherein a rotating shaft (6) is rotatably connected between the fixing seats (5), wherein a flat plate (7) is fixedly connected to the side surface of the rotating shaft (6), wherein a notch (8) is arranged on the upper surface of the flat plate (7), wherein the inner diameter of the notch (8) is half the inner diameter of the operating port (4), and wherein a clamping block (9) is fixedly connected to the lower surface of the flat plate (7), wherein the clamping block (9) is clamped and connected in the fixing groove (10).

6. The arthroscopic manipulation device for the atlantoaxial joint according to claim 1, characterized in that: Two built-in grooves are arranged on the inner side of the fixing plate (1), and the built-in grooves are arranged between the retractable arthroscopic sheath and the operation channel. Two slide grooves are arranged between the built-in grooves and the side surfaces of the fixing plate (1), and the support assembly is arranged in the built-in grooves and the slide grooves.

7. The arthroscopic manipulation device for the atlantoaxial joint according to claim 6, characterized in that: The support assembly comprises a first gear (17) and two second gears (18), the first gear (17) and the second gear (18) are both rotatably connected to the inner side of the built-in groove, the first gear (17) is arranged between the second gears (18), the first gear (17) and the second gear (18) are meshed with each other, the side of the first gear (17) is fixedly connected to a connecting seat (16), the side of the connecting seat (16) away from the first gear (17) is fixedly connected to a rotating handle (15), and the rotating handle (15) passes through and extends to the side of the fixed plate (1).

8. The arthroscopic manipulation device for the atlantoaxial joint according to claim 7, characterized in that: A transmission gear (19) is fixedly connected to the side of the second gear (18), a transmission rod (20) is slidably connected in the slide groove, a plurality of tooth grooves (21) are evenly arranged on the side of the transmission rod (20) close to the transmission gear (19), the transmission gear (19) is meshedly connected in the tooth grooves (21), a support top piece (22) is fixedly connected to the top of the transmission rod (20), the support top piece (22) is arranged in a "concave" shape, and a plurality of grooves (23) are arranged at the top of the support top piece (22).

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