Expansion and exposure suite for anterior cervical surgery
By designing a dilation exposure kit for anterior cervical spine surgery, the problem of blocking and operating laboriousness of spinal endoscopy in traditional surgery is solved, and a single-person operation, precise control and better stability of cervical space expansion effect is achieved.
Patent Information
- Application Number
- CN202421808323.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In anterior cervical spine surgery assisted by spinal endoscopy, traditional cervical space opening instruments will block the spinal endoscopy and require assistant help to pull and reveal, resulting in difficulty in operation, insufficient accuracy, poor stability, and easy to cause damage to the cervical spine.
An expansion and exposure kit for anterior cervical spine surgery is designed, including a telescopic fixing frame and an expansion and exposure device. The expansion and exposure device consists of an open circuit board, a traction hook and a screw. The expansion and exposure device is adjusted through the telescopic fixing frame to achieve single-person cervical gap opening.
It realizes that the anterior cervical spine surgery can be completed without an assistant with the assistance of endoscopy, saves human resources, makes the operation easier and more accurate, reduces damage to the cervical spine, and ensures that the microscopic operation is successfully completed at any angle.
Smart Images
Figure CN222997895U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cervical spine surgical instruments, and particularly relates to a dilation and exposure kit for anterior cervical spine surgery. Background Technique
[0002] Anterior cervical spine surgery (ACDF) is a treatment method directly targeting lesions in the front of the cervical spine, which can effectively decompress osteophytes, calcified posterior longitudinal ligaments, and protruding intervertebral discs, thereby relieving cervical spine compression symptoms. Anterior cervical spine surgery assisted by a spinal endoscope can complete the work of anterior cervical spine surgery more precisely and safely, especially for treating complex cases, and has unique advantages.
[0003] During anterior cervical spine surgery assisted by a spinal endoscope, it is necessary to expand the cervical spine interspace. Traditional cervical spine interspace expansion instruments (such as intervertebral retractors) will block the spinal endoscope, and endoscopic operations cannot be completed at certain angles, thus affecting the surgical operation. Moreover, during the expansion process, it is necessary to rely on an assistant to use a cervical spine surgical retractor to help pull and expose, which requires a lot of human resources, and continuous manual pulling is required. The operation process is laborious, the operation accuracy is insufficient, the operation stability is poor, and repeated pulling is likely to cause damage to the cervical spine. Content of the Utility Model
[0004] The utility model aims to provide a dilation and exposure kit for anterior cervical spine surgery to solve the above-mentioned existing technical problems.
[0005] To achieve the above purpose, the technical solution of the utility model is: a dilation and exposure kit for anterior cervical spine surgery, including a telescopic fixing frame and a dilation and exposure instrument installed between the left and right ends of the telescopic fixing frame. The dilation and exposure instrument includes an opening plate and two traction hooks. The telescopic fixing frame is telescopically arranged to adjust the distance between its left and right ends. An operation vision opening is provided on the opening plate. The bottom ends of the two traction hooks are respectively movably connected to the left and right ends of the opening plate, and the top ends of the two traction hooks are respectively connected to the left and right ends of the telescopic fixing frame.
[0006] Preferably, the telescopic fixing frame is rectangular, and it includes a first frame body and a second frame body arranged left and right. The first frame body includes two mutually parallel inner tube bodies and a left end rod fixedly installed between the two inner tube bodies. The first frame body includes two mutually parallel outer tube bodies and a right end rod fixedly installed between the two outer tube bodies. The inner tube bodies are correspondingly inserted into the outer tube bodies to achieve telescopic cooperation.
[0007] Preferably, a first screw hole is provided on the outer tube body, and an adjustment knob is installed on the first screw hole for tightly positioning the inner tube body in the outer tube body.
[0008] Preferably, it further includes a fixing knob. An installation hole is provided at the top of the traction hook. Second screw holes are respectively provided on the opposite sides of the middle parts of the left end rod and the right end rod. The fixing knob passes through the installation hole and is in locking fit with the second screw holes, thereby fixedly connecting the tops of the two traction hooks to the left and right ends of the telescopic fixing frame respectively.
[0009] Preferably, the dilating and exposing instrument has a symmetric inverted "V" - shaped structure.
[0010] Preferably, it further includes two spreading screws. First spreading screw holes and second spreading screw holes are respectively provided on the front and rear sides corresponding to the operation visual field opening of the open plate. The two spreading screws respectively pass through the first spreading screw hole and the second spreading screw hole to fixedly install the open plate on the cervical vertebra, so that the operation visual field opening corresponds to the cervical vertebra gap.
[0011] Preferably, both the first spreading screw hole and the second spreading screw hole are circular holes. There is one first spreading screw hole, and two second spreading screw holes are arranged front and back.
[0012] Preferably, connecting rods are respectively provided at the left and right ends of the open plate. The length direction of the connecting rod is parallel to the front - rear direction. A C - shaped connecting part is provided at the bottom end of the traction hook. The C - shaped connecting part of the traction hook is rotatably connected to the connecting rod.
[0013] Preferably, it further includes a spreading forceps for spreading the cervical vertebra gap.
[0014] The utility model has the following beneficial effects:
[0015] When performing the anterior cervical discectomy, decompression, fusion and internal fixation under spinal endoscopy with the utility model, only one surgeon can complete the surgical operation. That is, the spreading angle of the fixed traction hook is adjusted through the telescopic fixing frame. After adjustment, the surgeon can perform the surgical operation. The integrated operating instrument does not require the assistance of an assistant, saving human resources. The operation process is more relaxed and labor - saving, and can accurately control the movement of the traction hook, with better operation accuracy and stability. Moreover, it can reduce the damage to the cervical vertebra caused by repeated pulling, reduce the occurrence of injury to the esophagus, important nerves and blood vessels, and can set shorter intervertebral space spreading screws, thereby avoiding blocking the operation range of the spinal endoscope and enabling smooth completion of the endoscopic operation at any angle, ensuring the smooth progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the top view of the embodiment of the utility model;
[0017] Figure 2 is the front view of the embodiment of the utility model;
[0018] Figure 3 is the left view of the embodiment of the utility model;
[0019] Figure 4 is the top view of the telescopic fixing frame according to an embodiment of the present utility model;
[0020] Figure 5 is the structural schematic diagram of the open circuit board according to an embodiment of the present utility model;
[0021] Figure 6 is the schematic diagram of the traction hook at an angle according to an embodiment of the present utility model;
[0022] Figure 7 is the schematic diagram of the traction hook at another angle according to an embodiment of the present utility model;
[0023] Figure 8 is the structural schematic diagram of the spreading forceps according to an embodiment of the present utility model.
[0024] Reference numerals in the drawings: 1 first frame body, 11 left end rod, 12 inner tube body, 2 second frame body, 21 right end rod, 22 outer tube body, 3 open circuit board, 31 operation viewing port, 32 connecting rod, 33 first spreading screw hole, 34 second spreading screw hole, 5 traction hook, 51 mounting hole, 52 C-shaped connecting portion, 6 adjusting knob, 7 fixing knob, 8 spreading screw, 9 spreading forceps. Detailed implementation manners
[0025] To further illustrate each embodiment, the present utility model provides drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0026] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] Referring to Figure 1-8 As shown in the figure, as an embodiment of the present utility model, a dilation and exposure kit for anterior cervical spine surgery is provided, specifically an anterior cervical spine dilation and exposure device applicable to anterior cervical decompression, fusion and internal fixation under a spinal endoscope. It includes a telescopic fixing frame and a dilation and exposure instrument installed between the left and right ends of the telescopic fixing frame. The dilation and exposure instrument includes an opening plate 3 and two traction hooks 5. The telescopic fixing frame is telescopically arranged to adjust the distance between its left and right ends. An operation viewing port 31 is provided on the opening plate 3. The bottom ends of the two traction hooks 5 are respectively movably connected to the left and right ends of the opening plate 3, and the top ends of the two traction hooks 5 are respectively connected to the left and right ends of the telescopic fixing frame. The dilation and exposure device of the present utility model is mainly used for the operation of expanding the cervical intervertebral space in anterior cervical spine surgery. The opening plate 3 is used to be fixedly installed on the cervical vertebra, and the operation viewing port 31 corresponds to the cervical intervertebral space. Compared with the existing technical solution of manually pulling the cervical spine surgical hook, the technical solution of the present utility model only requires one surgeon to complete the surgical operation during the anterior cervical discectomy, decompression, fusion and internal fixation under a spinal endoscope (i.e., anterior cervical spine surgery). That is, by adjusting the telescopic fixing frame to adjust the opening angle of the fixed traction hook 5, after adjustment, the surgeon can perform the surgical operation. It is an integrated operating instrument, without the need for an assistant to assist in the operation, saving human resources, making the operation process easier and more labor-saving, and being able to accurately control the movement of the traction hook 5, with better operation accuracy and stability. Moreover, it can reduce the damage to the cervical vertebra caused by repeated pulling, reduce the occurrence of damage to the esophagus, important nerves and blood vessels, and can set shorter intervertebral space expansion screws, thereby avoiding blocking the operation range of the spinal endoscope and enabling smooth completion of the endoscopic operation at any angle, ensuring the smooth progress of the surgery.
[0029] In this embodiment, the telescopic fixing frame is rectangular and includes a first frame body 1 and a second frame body 2 arranged left and right. The first frame body 1 includes two mutually parallel inner tube bodies 12 and a left end rod 11 fixedly installed between the two inner tube bodies 12. The first frame body 1 includes two mutually parallel outer tube bodies 22 and a right end rod 21 fixedly installed between the two outer tube bodies 22. The inner tube bodies 12 are correspondingly inserted into the outer tube bodies 22 to achieve telescopic cooperation. The length directions of the inner tube bodies 12 and the outer tube bodies 22 are parallel to the left and right directions, and the length directions of the left end rod 11 and the right end rod 21 are parallel to the front and back directions. Specifically, a first screw hole is provided on the outer tube body 22, and an adjusting knob 6 is installed on the first screw hole for tightly positioning the inner tube body 12 in the outer tube body 22. When the adjusting knob 6 is tightened, the telescopic movement of the inner tube body 12 in the outer tube body 22 can be restricted. When the adjusting knob 6 is loosened, the restriction on the telescopic movement of the inner tube body 12 in the outer tube body 22 can be released. This structural setting is easier to operate and more aesthetically pleasing.
[0030] In this embodiment, a fixing knob 7 is further included. An installation hole 51 is provided at the top of the traction hook 5. Second screw holes are respectively provided on the opposite sides of the middle parts of the left end rod 11 and the right end rod 21. The fixing knob 7 passes through the installation hole 51 and is in locking cooperation with the second screw holes, thereby fixedly connecting the tops of the two traction hooks 5 to the left and right ends of the telescopic fixing frame respectively to ensure the installation stability.
[0031] In this embodiment, the dilating and exposing instrument has a symmetrical inverted "J" - shaped structure, providing a wider field of view.
[0032] In this embodiment, two spreading screws 8 are further included. First spreading screw holes 33 and second spreading screw holes 34 are respectively provided on the front and back sides corresponding to the operation visual field opening 31 of the open plate 3. The two spreading screws 8 respectively pass through the first spreading screw holes 33 and the second spreading screw holes 34 to fixedly install the open plate 3 on the cervical vertebra, so that the operation visual field opening 31 corresponds to the cervical vertebra gap. Specifically, both the first spreading screw holes 33 and the second spreading screw holes 34 are round holes. There is one first spreading screw hole 33, and two second spreading screw holes 34 are arranged front and back, so as to conveniently adjust the distance between the two spreading screws 8 according to the size of the cervical vertebra gap of different patients.
[0033] In this embodiment, connecting rods 32 are respectively provided at the left and right ends of the open plate 3. The length direction of the connecting rods 32 is parallel to the front and back directions. A C - shaped connecting portion 52 is provided at the bottom end of the traction hook 5. The C - shaped connecting portion 52 of the traction hook 5 is rotatably connected to the connecting rod 32 to ensure the smooth movement of the traction hook 5 during the spreading process.
[0034] In this embodiment, a spreading forceps 9 is further included for spreading the cervical vertebra gap.
[0035] The operation steps of this embodiment are as follows:
[0036] 1. Dissect the muscle tissue through the traditional intermuscular approach to expose the prevertebral space, and use a C-arm fluoroscope to determine the cervical vertebra segment corresponding to the surgical position.
[0037] 2. After positioning, install the opening plate 3 on this cervical vertebra segment. Lock one end of the opening plate 3 on the cervical vertebra through a spreading screw 8 passing through the first spreading screw hole 33, then use a spreading forceps 9 to open the intervertebral space, and lock the other end of the opening plate 3 on the cervical vertebra through another spreading screw 8 passing through the second spreading screw hole 34.
[0038] 3. Rotationally connect the C-shaped connecting parts 52 at the bottom ends of the two traction hooks 5 to the two connecting rods 32 of the opening plate 3 respectively.
[0039] 4. The fixing knob 7 passes through the mounting hole 51 and is in locking fit with the second screw hole, thereby fixedly connecting the top ends of the two traction hooks 5 to the left and right ends of the telescopic fixing frame respectively.
[0040] 5. Loosen the adjusting knob 6 so that the telescopic fixing frame can be telescopically set to adjust the distance between its left and right ends, thereby adjusting the opening degree between the two traction hooks 5. Then tighten the adjusting knob 6 so that the spreading angle of the two traction hooks 5 is fixed, realizing stable adjustment of the anterior cervical expansion and exposure.
[0041] Compared with the existing technical solutions, the technical solution of this embodiment does not require the operator to manually pull and spread the traction hook 5, reducing the number of operators. At the same time, it has good stability and more precise adjustment ability, which can effectively improve the surgical speed and reduce the operation difficulty.
[0042] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention defined by the appended claims all fall within the protection scope of the present invention.
Claims
1. A dilation and exposure kit for anterior cervical spine surgery, characterized in that: It includes a telescopic fixing frame and an expansion and exposure device installed between the left and right ends of the telescopic fixing frame. The expansion and exposure device includes an open circuit plate and two traction hooks. The telescopic fixing frame can be telescopically arranged to adjust the distance between its left and right ends. An operating field of view is arranged on the open circuit plate. The bottom ends of the two traction hooks are respectively movably connected to the left and right ends of the open circuit plate, and the top ends of the two traction hooks are respectively connected to the left and right ends of the telescopic fixing frame.
2. The expansion and exposure kit for anterior cervical spine surgery according to claim 1, characterized in that: The telescopic fixed frame is rectangular, and includes a first frame body and a second frame body arranged on the left and right. The first frame body includes two inner tube bodies parallel to each other and a left end rod fixedly installed between the two inner tube bodies. The first frame body includes two outer tube bodies parallel to each other and a right end rod fixedly installed between the two outer tube bodies. The inner tube bodies are correspondingly inserted into the outer tube bodies to achieve telescopic cooperation.
3. The expansion and exposure kit for anterior cervical spine surgery according to claim 2, characterized in that: The outer tube body is provided with a first screw hole, and an adjusting knob is installed on the first screw hole for tightly positioning the inner tube body in the outer tube body.
4. The expansion and exposure kit for anterior cervical spine surgery according to claim 2, characterized in that: It also includes a fixing knob, a mounting hole is provided at the top of the traction hook, and second screw holes are respectively provided on the opposite sides of the middle of the left end rod and the right end rod. The fixing knob passes through the mounting hole and is locked with the second screw hole, thereby fixing the top ends of the two traction hooks to the left and right ends of the telescopic fixing frame respectively.
5. The expansion and exposure kit for anterior cervical spine surgery according to claim 1, characterized in that: The expansion and exposure device has a symmetrical inverted "J"-shaped structure.
6. The expansion and exposure kit for anterior cervical spine surgery according to claim 1, characterized in that: It also includes two expansion screws. A first expansion screw hole and a second expansion screw hole are respectively arranged on the front and rear sides of the open circuit plate corresponding to the operating field of view. The two expansion screws respectively pass through the first expansion screw hole and the second expansion screw hole to fix the open circuit plate on the cervical vertebra, so that the operating field of view corresponds to the cervical intervertebral space.
7. The expansion and exposure kit for anterior cervical spine surgery according to claim 6, characterized in that: The first expansion screw hole and the second expansion screw hole are both round holes. There is one first expansion screw hole and there are two second expansion screw holes arranged in front and back.
8. The expansion and exposure kit for anterior cervical spine surgery according to claim 1, characterized in that: The left and right ends of the open circuit plate are respectively provided with connecting rods, the length direction of the connecting rods is parallel to the front and rear directions, and the bottom end of the traction hook is provided with a C-shaped connecting part, which is rotatably connected to the connecting rods.
9. The expansion and exposure kit for anterior cervical spine surgery according to claim 1, characterized in that: Also included are distraction forceps for distracting the cervical intervertebral space.