Bone Meal Thruster
A propeller and bone meal technology, applied in the field of medical devices, can solve the problems of false filling, long filling operation time, low filling efficiency, etc.
Active Publication Date: 2021-09-10
CHONGQING XISHAN SCI & TECH
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- Abstract
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- Claims
- Application Information
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Problems solved by technology
In the prior art, a filler rod is usually used to slowly fill the shredded autologous bone into the hole at the fracture site of the scaphoid bone, the filling efficiency is low, the filling operation time is long, and the filling is not solid
Method used
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[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0041] refer to figure 1 and figure 2 , figure 1 A schematic structural view of a bone powder propeller in an embodiment of the present invention is shown, figure 2 An axial sectional view of the bone powder pusher in an embodiment of the present invention is schematically shown. A ...
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The invention relates to a bone meal propeller. The bone meal propeller includes: a catheter, a cover body, a push rod, a nut, a screw rod, an anti-rotation piece and a driving assembly. The conduit is connected with the cover body. The ejector rod is movably arranged in the conduit and the cover body. The nut is rotatably arranged in the cover body, the driving assembly is used to drive the nut to rotate, and the nut is sheathed on the screw rod. The screw rod is movably arranged in the cover body, the screw rod is connected with the ejector rod, and the side wall of the screw rod is provided with a guide groove along the axial direction. The anti-rotation piece is arranged on the cover body, and the anti-rotation piece is provided with a guide block that cooperates with the guide groove, and the guide block is arranged in the guide groove. When the nut rotates, the screw rod is driven to move. The anti-rotation part prevents the screw rod from rotating, so that the screw rod moves along the axial direction. In the hole position, the filling efficiency can be improved, the filling operation time is short, the bone powder is guaranteed to be filled, and the operation time can be reduced, which is beneficial to the recovery of the patient.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to a bone powder propeller. Background technique [0002] For example, in the surgical treatment of scaphoid fracture, it is necessary to cut the autogenous bone from another part of the patient into bone powder, and then fill the bone powder into the hole at the fracture site of the scaphoid bone. In the prior art, a filler rod is usually used to slowly fill the shredded autogenous bone into the hole at the fracture site of the scaphoid bone. The filling efficiency is low, the filling operation time is long, and the filling is not solid. Contents of the invention [0003] Based on this, it is necessary to overcome the defects of the prior art and provide a bone powder propeller, which can improve the filling efficiency, shorten the filling operation time, ensure the filling of the bone powder, reduce the operation time, and facilitate the recovery of the patient. [...
Claims
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IPC IPC(8): A61B17/88A61F2/46
CPCA61F2/4601
Inventor 郭毅军邱德洪
Owner CHONGQING XISHAN SCI & TECH