Tapping bone grafting device for spinal surgery

Abstract

The utility model aims to provide a tapping bone grafting instrument for spinal surgery, and relates to the technical field of medical instruments, a feeding cylinder is fixedly arranged in a shell of a bone grafting device and is communicated with a funnel, a rotating cylinder is rotationally sleeved outside the feeding cylinder, and a tapping head with a hollow interior is detachably arranged at the front end of the rotating cylinder and is communicated with the feeding cylinder, so that the feeding cylinder is connected with the rotating cylinder; the T-shaped rod is rotated to drive the rotating cylinder and the tapping head to rotate, so that tapping is achieved, and inconvenience in operation and low operation efficiency caused by repeated switching of using tools for tapping and bone grafting are avoided; the conveying rod is rotationally installed in the feeding barrel, the transmission mechanism is arranged at the tail end of the shell and connected with the conveying rod, the transmission mechanism controls the conveying rod to rotate in the feeding barrel, aggregate in the feeding barrel is conveyed out of the tapping head, aggregate filling is achieved, and the aggregate filling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to medical instruments, in particular to a tapping bone implanter for spinal surgery. Background Art

[0002] In the treatment of spinal fractures, vertebral bone grafting is a commonly used surgical technique, which mainly promotes fracture healing and reconstructs the stability of the spine by implanting bones or other biological materials into the damaged vertebrae. This operation is usually used to treat severe spinal compression fractures or spinal burst fractures. In vertebral bone grafting, surgeons usually choose to use autologous bone, allogeneic bone or artificial bone for bone grafting. Autologous bone transplantation refers to the preparation of cancellous bone such as the spinous process and vertebral lamina bitten off during the operation or the iliac bone of another patient for bone grafting. Allogeneic bone transplantation refers to the extraction and use of bones from other people for bone grafting, while artificial bone is a material made by chemical synthesis or biotechnology for bone grafting.

[0003] At present, when performing spinal surgery to place screws in the pedicles, it is necessary to tap the screw channel (i.e., tap out the screw channel threads); and in order to restore the height of the diseased vertebra and increase the stability of the spine, bone grafting of the injured vertebra is usually required. When placing screws in the injured vertebra, after prefabricating the screw channel for the injured vertebra, bone grafting of the injured vertebra is required before or after tapping. During clinical surgery, multiple tools such as tapping drills and bone grafting funnels are often used for tapping and bone grafting respectively. Switching back and forth between tools for tapping and bone grafting is inconvenient and has low surgical efficiency. Moreover, switching back and forth between tools for bone grafting can easily damage the prefabricated screw channel, resulting in risks such as screw placement failure, and in severe cases, even loss of the upper spinal nerve. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides the following technical solutions:

[0005] A tapping bone implanter for spinal surgery comprises a bone implant device and a transmission mechanism, wherein the bone implant device comprises a shell, a tapping head and a funnel, a feed cylinder is fixedly installed inside the shell, the funnel is connected to the feed cylinder, the feed cylinder is rotatably sleeved on the outside of a rotating cylinder, one end of the rotating cylinder is fixedly sleeved on a bevel gear, and the other end is detachably installed with a tapping head, the tapping head is an internally hollow structure and is connected to the feed cylinder, a T-shaped rod is rotatably installed on the shell, one end of the T-shaped rod is fixedly provided with a bevel gear that meshes with the bevel gear on the rotating cylinder, the bevel gear is driven to rotate by rotating the T-shaped rod, so that the rotating cylinder rotates, thereby driving the tapping head to rotate.

[0006] Furthermore, a transmission rod is rotatably arranged in the feeding barrel, a transmission mechanism is arranged at the rear end of the shell, the transmission mechanism is fixedly connected to the transmission rod, and the rotation of the transmission rod is controlled by the transmission mechanism.

[0007] Furthermore, the transmission mechanism is a rotating rod, which is rotatably mounted on the rear end of the housing, and the transmission rod is fixedly connected to the rotating rod. The transmission rod is driven to rotate by rotating the rotating rod.

[0008] Furthermore, a handle is fixedly arranged on the shell.

[0009] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0010] 1. The utility model fixes a feeding cylinder in the housing of the bone grafting device and connects it with the funnel, and rotatably sleeves a rotating cylinder outside the feeding cylinder. A hollow tapping head is detachably installed at the front end of the rotating cylinder and connected with the feeding cylinder. The rotating cylinder is rotated by rotating the T-shaped rod to drive the bevel gear to rotate, thereby driving the tapping head to rotate to achieve tapping, thereby avoiding the problem of switching back and forth between tools for tapping and bone grafting, causing inconvenience in operation and low surgical efficiency;

[0011] 2. The utility model rotatably installs a transmission rod in the feeding barrel, and arranges a transmission mechanism at the tail end of the shell to connect with the transmission rod. The transmission mechanism controls the transmission rod to rotate in the feeding barrel, and the aggregate in the feeding barrel is sent out of the tapping head to realize aggregate filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the appearance structure of the utility model.

[0014] In the figure: bone grafting device-1, housing-101, tapping head-102, funnel-103, rotating cylinder-104, feeding cylinder-105, transmission rod-106, transmission mechanism-2, bevel gear-3, T-shaped rod-4, rotating rod-5, handle-6, bearing-7. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Embodiment 1:

[0017] See also Figure 1-2A tapping bone implant for spinal surgery includes a transmission mechanism and a bone implant device 1, the bone implant device 1 includes a shell 101, a tapping head 102 and a funnel 103, a feed barrel 105 is fixedly installed in the shell 101, the funnel 103 is communicated with the feed barrel 105, the feed barrel 105 is rotatably sleeved on the rotating barrel 104, one end of the rotating barrel 104 is fixedly sleeved with a bevel gear 3, and the tapping head 102 is detachably installed on the other end, that is, the tapping head 102 is inserted into the head end of the rotating barrel 104, and the tapping head 102 is fixed by bolts, the tapping head 102 is an internal hollow structure and is communicated with the feed barrel 105, a T-shaped rod 4 is rotatably installed on the shell 101, one end of the T-shaped rod 4 is fixedly provided with a bevel gear 3 that meshes with the bevel gear 3 on the rotating barrel 104, and the bevel gear 3 is driven to rotate by rotating the T-shaped rod 4, so that the rotating barrel 104 rotates, and the tapping head 102 is driven to rotate;

[0018] In this embodiment, a feeding cylinder 105 is fixedly installed in the shell 101 of the bone grafting device 1 and is connected to the funnel 103, and a rotating cylinder 104 is rotatably sleeved outside the feeding cylinder 105. A tapping head 102 with a hollow interior is detachably installed at the front end of the rotating cylinder 104 and is connected to the feeding cylinder 105. The rotating cylinder 104 is rotated by rotating the T-shaped rod 4 to drive the bevel gear 3 to rotate, thereby driving the tapping head 102 to rotate to achieve tapping, thereby avoiding the problem of switching back and forth between tools for tapping and bone grafting, which causes inconvenience in operation and low surgical efficiency.

[0019] Embodiment 2:

[0020] See also Figure 1-2 According to Example 1, a conveying rod 106 is rotatably arranged in the feeding barrel 105, and a transmission mechanism 2 is arranged at the tail end of the shell 101. The transmission mechanism 2 is fixedly connected to the conveying rod 106. The conveying rod 106 is controlled to rotate in the feeding barrel 105 through the transmission mechanism, and the aggregate in the feeding barrel 105 is sent out of the tapping head 102 to realize aggregate filling and improve the efficiency of aggregate filling.

[0021] Embodiment 3:

[0022] See also Figure 1 According to Example 2, the transmission mechanism 2 is a rotating rod 5, which is rotatably installed at the rear end of the housing 101. The transmission rod 106 is fixedly connected to the rotating rod 5. By manually rotating the rotating rod 5, the transmission rod 106 is driven to rotate, thereby sending the aggregate in the feeding barrel 105 out of the tapping head 102. The rotating rod 5 is rotatably connected to the rear end of the housing 101 through a bearing 7.

[0023] Embodiment 4:

[0024] See also Figure 1-2 According to Embodiment 1, a handle 6 is fixedly provided on the housing 101 to facilitate hand-holding of the bone grafting device 1 .

[0025] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tapping bone grafting device for spinal surgery, comprising a bone grafting device and a transmission mechanism, characterized in that: The bone grafting device includes a shell, a tapping head and a funnel. A feeding barrel is fixedly installed in the shell, and the funnel is connected to the feeding barrel. The feeding barrel is rotatably sleeved on the outside of a rotating barrel. One end of the rotating barrel is fixedly sleeved on a bevel gear, and the other end is detachably installed with a tapping head. The tapping head is an internally hollow structure connected to the feeding barrel. A T-shaped rod is rotatably installed on the shell, and one end of the T-shaped rod is fixedly provided with a bevel gear that meshes with the bevel gear on the rotating barrel. The bevel gear is driven to rotate by rotating the T-shaped rod, so that the rotating barrel rotates, thereby driving the tapping head to rotate.

2. A tapping bone implant for spinal surgery according to claim 1, characterized in that: A transmission rod is rotatably arranged in the feeding cylinder, and a transmission mechanism is arranged at the tail end of the shell. The transmission mechanism is fixedly connected with the transmission rod, and the rotation of the transmission rod is controlled by the transmission mechanism.

3. A tapping bone implant for spinal surgery according to claim 2, characterized in that: The transmission mechanism is a rotating rod, which is rotatably mounted at the rear end of the housing. The transmission rod is fixedly connected to the rotating rod, and the transmission rod is driven to rotate by rotating the rotating rod.

4. The tapping bone implant for spinal surgery according to claim 1, characterized in that: A handle is fixedly arranged on the shell.

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