Cattle bone fusion cage driver convenient to adjust

Abstract

The bovine bone fusion cage driver convenient to adjust comprises a handle, a clamping device is arranged, a fusion cage is arranged on the inner side of an elastic clamping piece, a rotating rod is rotated through a rotary knob, the rotating rod drives a rotating shaft and a driving gear to rotate, the driving gear drives a driven gear to rotate through the action of tooth meshing, and the driven gear drives the driven gear to rotate. Due to the effect of threaded connection, the driving gear rotates and drives the threaded sleeve to move forwards at the same time, the threaded sleeve exerts external force on the elastic clamping pieces, the elastic clamping pieces are made to get close to the middle, closing-up is achieved, the effect of clamping the fusion cage is achieved, then the reverse rotating knob is loosened, the threaded sleeve moves backwards to the initial position through the effect of threaded connection, and the fusion cage is clamped. At the moment, the external force acting on the elastic clamping piece disappears, the elastic clamping piece also restores to the initial open state, the device can be moved out, implantation is completed, the fusion cage is not subjected to any external force in the whole implanting and moving-out process, and the risk of loosening cannot occur.

Description

Technical Field

[0001] The utility model relates to a bovine bone fusion device inserter which is convenient to adjust, and belongs to the technical field of spinal fusion surgery. Background Technique

[0002] The development of spinal fusion surgery has a history of nearly a hundred years. Only a few cases of functional disorders caused by disc herniation or spinal stenosis without spondylolisthetic spinal degeneration retain the use of fusion surgery. Currently, the fusion surgery used for a few cases of functional disorders caused by disc herniation or spinal stenosis without spondylolisthetic spinal degeneration is to make the original spinal motion segment immobile and grow into a whole. It is usually applied when the spinal stability is damaged or orthopedic treatment is needed, and internal fixation is required.

[0003] The Chinese published patent (Publication No.: CN 215080305 U) discloses a new type of intervertebral fusion device inserter, which includes a front rod body, a limit nut, a positioning part and a striking base. A handle is fixed to the bottom surface of the positioning part, a support member is fixed to the top of the positioning part, a slot is provided on the support member, and a positioning member is connected to the slot in a clamping manner. The positioning member has four positioning reflective balls; In summary, the new technology can judge the insertion depth and angle of the fusion device under ordinary naked eye observation, and can also judge during the robot-assisted intervertebral fusion surgery, reducing the number of intraoperative fluoroscopies and reducing the damage caused by X-rays to the operator;

[0004] Although the above patent can judge the insertion depth and angle of the fusion device under ordinary naked eye observation and can also judge during the robot-assisted intervertebral fusion surgery, reducing the number of intraoperative fluoroscopies and reducing the damage caused by X-rays to the operator, the above patent still has certain defects. In the intervertebral fusion surgery, it is necessary to remove the intervertebral disc through incision and perform lumbar fixation and fusion at the same time. The lumbar fixation and fusion is to place a lumbar fusion device in the intervertebral space to maintain the height of the lumbar intervertebral space. Therefore, it is necessary to use an inserter to clamp the intervertebral fusion device and implant it into the human spinal column. The above device is not convenient for clamping the fusion device, which may lead to the risk of loosening of the fusion device during the operation, which may cause harm to the patient.

[0005] Therefore, a bovine bone fusion device inserter which is convenient to adjust is proposed. Content of the Utility Model

[0006] In view of this, the utility model provides a bovine bone fusion device inserter which is convenient to adjust to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the present utility model is realized as follows: A bone fusion device for cattle that is convenient to adjust, including a handle, the top of the handle is fixedly connected with a housing, and a clamping device is arranged on the outer side of the housing. The clamping device includes a fixed block and a driven gear;

[0008] The fixed block is fixedly connected to the right side of the housing, a threaded rod is fixedly connected to the right side of the fixed block, an elastic clip is fixedly connected to the front side of the threaded rod, and a threaded sleeve is threadedly connected to the outer surface of the threaded rod. A driven gear is fixedly connected to the outer surface of the threaded sleeve.

[0009] Further preferably, a rotating rod is movably connected to the rear side of the housing through a bearing. A knob is fixedly connected to the rear side of the rotating rod, and a plurality of equally spaced slots are provided on the outer surface of the knob.

[0010] Further preferably, the front side of the rotating rod penetrates the inner surface of the housing, and a rotating shaft is movably connected to the front side of the rotating rod through a bearing. A driving gear is fixedly connected to the front end of the outer surface of the rotating shaft, and the driving gear is in tooth engagement with the driven gear.

[0011] Further preferably, a limiting mechanism is arranged on the outer side of the housing. The limiting mechanism includes a reset spring, the reset spring is fixedly connected to the bottom of the inner cavity of the housing, and a movable column is fixedly connected to the top of the reset spring.

[0012] Further preferably, a pressing plate is fixedly connected to the top of the movable column. Support blocks are fixedly connected to the left and right ends of the rear side of the top of the housing, and the inner sides of the two support blocks are movably connected to the left and right sides of the rear side of the pressing plate through bearings.

[0013] Further preferably, a clamping block is fixedly connected to the bottom of the rear side of the pressing plate, and the clamping block is clamped in the inner cavity of the slot.

[0014] Further preferably, sliding blocks are fixedly connected to the front and rear sides of the lower end of the movable column, and sliding grooves are provided on the front and rear sides of the inner cavity of the housing. The outer sides of the two sliding blocks are slidably connected to the inner cavities of the sliding grooves.

[0015] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages:

[0016] 1. The utility model clamps the fusion device inside the elastic clip by setting a clamping device. By turning the knob to rotate the rotating rod, the rotating rod drives the rotating shaft and the driving gear to rotate. The driving gear drives the driven gear to rotate through the meshing of teeth. Due to the threaded connection, while the driving gear rotates, it drives the threaded sleeve to move forward. The threaded sleeve applies an external force to the elastic clip, causing the elastic clip to move closer to the middle to achieve closing, thus achieving the effect of clamping the fusion device. Then, release and reverse-rotate the knob, and the threaded sleeve moves backward to the initial position through the threaded connection. At this time, the external force acting on the elastic clip disappears, and the elastic clip also returns to the initial open state. At this time, the device can be removed, and the implantation is completed. During the entire process of implanting and removing the device, the fusion device is not affected by any external force and there is no risk of loosening.

[0017] 2. The utility model sets a knob, and the rotating rod can be rotated by holding the knob. By setting a driving gear, the driven gear can be driven to rotate through the meshing of the teeth of the driving gear. By setting a limiting mechanism, the rotation of the rotating rod can be limited. By setting a supporting block, the pressing plate can be supported by the supporting block.

[0018] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a front three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 It is a rear structural schematic diagram of the present utility model;

[0022] Figure 3 It is a structural schematic diagram of the clamping device of the present utility model;

[0023] Figure 4 It is a structural schematic diagram of the limiting mechanism of the present utility model;

[0024] Figure 5 It is of the present utility model Figure 2 The enlarged structural schematic diagram at A in it.

[0025] Reference numerals: 1, handle; 2, clamping device; 201, fixed block; 202, threaded rod; 203, elastic clip; 204, threaded sleeve; 205, driven gear; 206, knob; 207, rotating rod; 208, rotating shaft; 209, driving gear; 3, housing; 4, limiting mechanism; 401, return spring; 402, movable column; 403, pressing plate; 404, supporting block; 405, clamping block; 406, clamping groove; 407, slider; 408, sliding groove. Detailed implementation manners

[0026] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0027] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0028] Embodiment 1

[0029] As Figures 1-5 shown, the embodiment of the present invention provides a bovine bone fusion device inserter that is convenient to adjust, including a handle 1. A housing 3 is fixedly connected to the top of the handle 1. A clamping device 2 is arranged on the outer side of the housing 3. The clamping device 2 includes a fixed block 201 and a driven gear 205;

[0030] The fixed block 201 is fixedly connected to the right side of the housing 3. A threaded rod 202 is fixedly connected to the right side of the fixed block 201. An elastic clip 203 is fixedly connected to the front side of the threaded rod 202. A threaded sleeve 204 is threadedly connected to the outer surface of the threaded rod 202. A driven gear 205 is fixedly connected to the outer surface of the threaded sleeve 204.

[0031] By setting the clamping device 2, the fusion device is placed inside the elastic clip 203. The rotating rod 207 is rotated by the knob 206, so that the rotating rod 207 drives the rotating shaft 208 and the driving gear 209 to rotate. The driving gear 209 drives the driven gear 205 to rotate through the engagement of teeth. Due to the effect of threaded connection, while the driving gear 209 rotates, the threaded sleeve 204 moves forward, and the threaded sleeve 204 applies an external force to the elastic clip 203, so that the elastic clip 203 moves closer to the middle to achieve closing, and the effect of clamping the fusion device is achieved. Then, the knob 206 is rotated in the reverse direction to loosen it, so that the threaded sleeve 204 moves back to the initial position through the threaded connection. At this time, the external force acting on the elastic clip 203 disappears, and the elastic clip 203 also returns to the initial open state. At this time, the device can be removed, and the implantation is completed. During the whole process of implanting and removing the device, the fusion device is not affected by any external force and there is no risk of loosening.

[0032] Example 2

[0033] In one embodiment, a rotating rod 207 is movably connected to the rear side of the housing 3 through a bearing. A knob 206 is fixedly connected to the rear side of the rotating rod 207. A plurality of equally spaced card slots 406 are formed on the outer surface of the knob 206. The front side of the rotating rod 207 penetrates through the inner surface of the housing 3. A rotating shaft 208 is movably connected to the front side of the rotating rod 207 through a bearing. A driving gear 209 is fixedly connected to the front end of the outer surface of the rotating shaft 208. The driving gear 209 is in tooth engagement with a driven gear 205. A limiting mechanism 4 is arranged on the outer side of the housing 3. The limiting mechanism 4 includes a return spring 401. The return spring 401 is fixedly connected to the bottom of the inner cavity of the housing 3. A movable column 402 is fixedly connected to the top of the return spring 401.

[0034] By providing the knob 206, the rotating rod 207 can be rotated by holding the knob 206. By providing the driving gear 209, the driven gear 205 can be driven to rotate through the tooth engagement of the driving gear 209. By providing the limiting mechanism 4, the rotation of the rotating rod 207 can be limited.

[0035] Example 3

[0036] In one embodiment, a pressing plate 403 is fixedly connected to the top of the movable column 402. Support blocks 404 are fixedly connected to the left and right ends of the rear side of the top of the housing 3. The inner sides of the two support blocks 404 are movably connected to the left and right sides of the rear side of the pressing plate 403 through bearings. A clamping block 405 is fixedly connected to the bottom of the rear side of the pressing plate 403. And the clamping block 405 is clamped in the inner cavity of the card slot 406. Sliders 407 are fixedly connected to the front and rear sides of the lower end of the movable column 402. Sliding grooves 408 are formed on the front and rear sides of the inner cavity of the housing 3. The outer sides of the two sliders 407 are slidably connected to the inner cavities of the sliding grooves 408.

[0037] By providing the support blocks 404, the pressing plate 403 can be supported by the support blocks 404. By providing the clamping block 405 and the card slot 406, the rotating rod 207 can be limited to prevent the rotating rod 207 from rotating due to the lack of a limiting device. By providing the sliders 407 and the sliding grooves 408, the stability of the movable column 402 during movement can be improved.

[0038] When the utility model is in operation: First, place the fusion device inside the elastic clip 203, press the rear side of the pressing plate 403 downward. The pressing plate 403 squeezes the return spring 401 through the movable column 402, causing the return spring 401 to deform, making the rear end of the pressing plate 403 tilt up, and causing the latch 405 to disengage from the inner cavity of the card slot 406. Rotate the rotating rod 207 through the knob 206, so that the rotating rod 207 drives the rotating shaft 208 and the driving gear 209 to rotate. The driving gear 209 drives the driven gear 205 to rotate through the meshing of the teeth. Due to the effect of threaded connection, while the driving gear 209 rotates, it drives the threaded sleeve 204 to move forward. The threaded sleeve 204 applies an external force to the elastic clip 203, causing the elastic clip 203 to move closer to the middle, achieving closing, and achieving the effect of clamping the fusion device. Release the pressing plate 403, and the return spring 401 deforms again due to the loss of force, causing the latch 405 to be clamped in the inner cavity of the card slot 406 to complete the limit. When the fusion device is implanted, press the rear side of the pressing plate 403 downward again, rotate the knob 206 in the reverse direction, so that the rotating rod 207 drives the rotating shaft 208 to rotate in the reverse direction, driving the driving gear 209 to rotate in the reverse direction. The driving gear 209 drives the driven gear 205 and the threaded sleeve 204 to rotate in the reverse direction through the meshing connection of the teeth, causing the threaded sleeve 204 to move backward to the initial position through the threaded connection with the threaded rod 202. At this time, the external force acting on the elastic clip 203 disappears, and the elastic clip 203 also returns to the initial open state. At this time, the device can be removed, and the implantation is completed. During the entire process of implanting and removing the device, the fusion device is not affected by any external force and there is no risk of loosening.

[0039] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A conveniently adjustable bovine bone fusion device, characterized in that: It comprises a handle (1), the top of the handle (1) is fixedly connected to a shell (3), a clamping device (2) is arranged on the outside of the shell (3), and the clamping device (2) comprises a fixing block (201) and a driven gear (205); The fixing block (201) is fixedly connected to the right side of the housing (3); a threaded rod (202) is fixedly connected to the right side of the fixing block (201); an elastic clip (203) is fixedly connected to the front side of the threaded rod (202); a threaded sleeve (204) is threadedly connected to the outer surface of the threaded rod (202); and a driven gear (205) is fixedly connected to the outer surface of the threaded sleeve (204).

2. The conveniently adjustable bovine bone fusion device according to claim 1, characterized in that: The rear side of the housing (3) is movably connected to a rotating rod (207) via a bearing, the rear side of the rotating rod (207) is fixedly connected to a knob (206), and the outer surface of the knob (206) is provided with a plurality of equally spaced slots (406).

3. The conveniently adjustable bovine bone fusion device according to claim 2, characterized in that: The front side of the rotating rod (207) passes through the inner surface of the housing (3); the front side of the rotating rod (207) is movably connected to a rotating shaft (208) via a bearing; the front end of the outer surface of the rotating shaft (208) is fixedly connected to a driving gear (209); the driving gear (209) is connected to the driven gear (205) in a tooth-meshing manner.

4. The conveniently adjustable bovine bone fusion device according to claim 1, characterized in that: A limiting mechanism (4) is arranged on the outer side of the shell (3), and the limiting mechanism (4) comprises a return spring (401), the return spring (401) is fixedly connected to the bottom of the inner cavity of the shell (3), and the top of the return spring (401) is fixedly connected to a movable column (402).

5. The conveniently adjustable bovine bone fusion device according to claim 4, characterized in that: The top of the movable column (402) is fixedly connected to a pressure plate (403), and the left and right ends of the rear side of the top of the shell (3) are fixedly connected to support blocks (404), and the inner sides of the two support blocks (404) are movably connected to the left and right sides of the rear side of the pressure plate (403) through bearings.

6. The conveniently adjustable bovine bone fusion device according to claim 5, characterized in that: A clamping block (405) is fixedly connected to the bottom of the rear side of the pressing plate (403), and the clamping block (405) is clamped in the inner cavity of the clamping slot (406).

7. The conveniently adjustable bovine bone fusion device according to claim 4, characterized in that: The front and rear sides of the lower end of the movable column (402) are fixedly connected with sliders (407), the front and rear sides of the inner cavity of the shell (3) are provided with slide grooves (408), and the outer sides of the two sliders (407) are slidably connected in the inner cavity of the slide grooves (408).

Images