Shaping cutter for joint surgical operation
A technology of surgical operations and planing knives, which is applied in the fields of surgery, medical science, and anatomical instruments. It can solve problems such as unfavorable operations, insufficient sharp knife tooth structure, and impact on patient recovery, so as to avoid tearing and save operation time. , the effect of reducing the amount of surgical operations
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Embodiment 1
[0038] Such as Figure 1 to Figure 6 Shown is the first embodiment of the planer for joint surgery of the present invention, including an outer tube 1 and an inner tube 2 that can rotate around its own axis and is sleeved in the outer tube. The front end of the inner tube 2 is provided with a The knife teeth 3 for cutting tissues, the front end of the outer tube 1 is provided with at least one planer window 4 capable of accommodating at least part of the exposed knife teeth; the inner tube 2 is provided with a suction hole for sucking chips by means of a negative pressure suction system, One end of the inner tube is connected with a power handle capable of controlling the unidirectional rotation and reciprocating rotation of the inner tube.
[0039] During the implementation of this embodiment, the unidirectional rotation and reciprocating rotation of the inner tube 2 are controlled by the power handle, and the part of the inner tube 2 exposed to the outer tube 1 cooperates wi...
Embodiment 2
[0043] Such as Figure 7 to Figure 9 Shown is the second embodiment of the joint surgery planer of the present invention, this embodiment is similar to the first embodiment, the difference is that the blade 3 is a crescent-shaped second blade window 32, the second blade The second knife-tooth window 32 includes a beveled surface 321 located at the front end of the inner tube and a first section 322 perpendicular to the beveled surface 321; the planer window 4 is a radian cut surface 42 obtained by obliquely cutting the outer tube, and the second knife-tooth window 31 protrudes at least partially On the arc surface where the arc section 42 is located. Cutting with the crescent-shaped second knife-tooth window 32 can obtain a relatively flat and smooth cutting surface. During the operation, the part of the inner tube 2 exposed to the outer tube 1 cooperates with the outer tube to cut tissue under high-speed rotation.
Embodiment 3
[0045] Such as Figure 10 to Figure 11 Shown is the third embodiment of the joint surgery planer of the present invention, this embodiment is similar to the first embodiment, the difference is that the knife teeth 3 are serrated third knife tooth windows 33, the second The three-toothed window 33 includes a sawtooth surface 331 parallel to the axis of the inner tube 2 and a cut surface 332 perpendicular to the sawtooth surface 331, and several planer windows 4 are uniformly arranged around the head of the outer tube. When resecting tissues with complex angles, it is possible to perform multi-angle tissue or cartilage cutting and planing operations conveniently and quickly, without the need for rotating planers at too many angles, which reduces surgical operations, improves surgical efficiency, and saves surgical time; in addition, these planers have a window of 4 It can also play a certain protective role to prevent the knife teeth 3 from excessively cutting tissues. In this ...
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