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saw blade

A technology of sawing blades and bone sawing, which is applied in surgical saws, metal sawing equipment, and knives of sawing machine devices, and can solve problems such as longitudinal guidance, unfavorable saw blade forming, and increased machine costs

Active Publication Date: 2021-06-25
AESCULAP AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, it has been found that the above-mentioned shaping of the saw blade is so unfavorable because it is difficult to guide the saw blade longitudinally under the patient's skin, for example when sawing the sternum
Even when the straight saw blade is aligned at an angle, for example about 45°, to the machine housing by a corresponding rotation of the knife holder in the designed position, it is impossible to cut the blade without injuring the patient's skin. Advance the saw blade satisfactorily in the cutting direction
Furthermore, the bone sawing machine must allow corresponding adjustments, which will lead to an increase in the cost of the machine

Method used

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Embodiment Construction

[0029] figure 1 and figure 2 A bone saw 1 according to a preferred embodiment of the invention is shown with a preferably replaceable saw blade 2 which, contrary to known saw blades, is not straight but has an approximately S-shaped Two (opposite) bends or bends.

[0030] Thus, the saw blade 2 according to the invention has a first distal leg 2d and a second proximal leg 2p which are not equal to 0° or not equal to Angular alignment of 180° (here about 45°). The two legs 2d, 2p of the S-like rolled saw blade 2 are connected (materially in one piece) to each other via an intermediate web 2z.

[0031] Said first distal leg 2d is preferably set straight and has a distal edge formed or provided with a serration / row of teeth 4 having a diameter preferably smaller / equal to With a row length of 20 mm (measured between the outermost teeth), the serrations / rows 4 extend approximately perpendicular to the central axis M of the first distal leg 2d. The second proximal leg 2p is like...

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Abstract

The invention relates to a preferably replaceable saw blade of a bone saw machine with a distally arranged or formed tooth row and a proximally arranged or formed coupling region for connecting the saw blade to the bone saw blade. The saw blade is connected to the swinging and rotating tool clamping part of the saw blade, wherein the saw blade is provided with two opposite substantially S-shaped bends or bends.

Description

technical field [0001] The present invention relates to a replaceable surgical saw blade for an oscillating medical / surgical saw. Background technique [0002] Electric bone saws are used in modern surgery for severing bones, such as hip joints, sternum, etc., such as in particular said electric bone saws also developed and manufactured by the applicant of the present invention. Such bone saws comprise a housing, which at the same time also forms the handle, and in which a drive for the pivoting drive of the pivoting head is accommodated. The swivel head has a knife holder into which the saw blade is releasably and thus replaceably insertable. [0003] The saw blade has, at the distal edge of its oscillating head, a generally tongue-like shape with rows of teeth in such a way that the rows of teeth follow a circular path during the oscillating rotational movement of the oscillating head. Move so that, for example, a sawing action is applied to bones. [0004] A saw blade ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/14
CPCA61B17/142B23D61/006
Inventor 乌韦·沙茨乌韦·马特斯马库斯·舍弗埃尔克·莫泽
Owner AESCULAP AG