Adjustable surgical blade
First Claim
1. An oscillatory cutting saw useful for surgical penetration of bone comprising:
- (a) an oscillatory power tool having a blade retention device;
(b) a cutting blade attached to the oscillatory cutting saw, said blade comprising;
(i) a central cutting blade shank having a longitudinal axis;
(ii) a distal end having a plurality of cutting teeth disposed substantially on a tangent perpendicular to the longitudinal axis of the cutting blade shank; and
(iii) a proximal end having a plurality of spaced-apart attachment elements, each of said attachment elements being capable of cooperating with the blade retention device so as to firmly attach the blade to the oscillatory cutting saw;
whereby the attachment of the blade to the oscillatory cutting saw by one of the attachment elements results in a distance between the cutting teeth and the blade retention device which is different from the distance between the cutting teeth and the blade retention device resulting from the attachment of the blade to the oscillatory cutting saw by a different attachment element.
3 Assignments
0 Petitions
Accused Products
Abstract
A cutting saw blade for use with an oscillatory power tool used in surgical bone cutting procedures including a blade having a distal end provided with teeth whose tips are oriented in a substantially linear row so that the terminus of all teeth lie in a solitary plane. Other tooth profiles assist in the cutting phenomena. The cutting blade has several spaced-apart pairs of notches disposed in the blade edges. Each pair of notches is adapted to cooperate with a pair of pins disposed on the oscillatory power tool to firmly retain the cutting blade to the saw. By providing the cutting blade with several sets of notches, the cutting blade is adjustable, in that it can be retained within the oscillatory power tool at different lengths. It has been found that such an adjustable cutting blade, having teeth oriented in a solitary plane, does not lose efficiency as the length of the blade is changed.
221 Citations
20 Claims
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1. An oscillatory cutting saw useful for surgical penetration of bone comprising:
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(a) an oscillatory power tool having a blade retention device; (b) a cutting blade attached to the oscillatory cutting saw, said blade comprising; (i) a central cutting blade shank having a longitudinal axis; (ii) a distal end having a plurality of cutting teeth disposed substantially on a tangent perpendicular to the longitudinal axis of the cutting blade shank; and (iii) a proximal end having a plurality of spaced-apart attachment elements, each of said attachment elements being capable of cooperating with the blade retention device so as to firmly attach the blade to the oscillatory cutting saw; whereby the attachment of the blade to the oscillatory cutting saw by one of the attachment elements results in a distance between the cutting teeth and the blade retention device which is different from the distance between the cutting teeth and the blade retention device resulting from the attachment of the blade to the oscillatory cutting saw by a different attachment element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A cutting blade for use with an oscillatory cutting saw having a blade retention device such as an oscillatory cutting saw used to surgically cut bone, the cutting blade comprising:
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(a) a central cutting blade shank having a longitudinal axis; (b) a distal end having a plurality of cutting teeth disposed substantially on a tangent perpendicular to the longitudinal axis of the cutting blade shank; and (c) a proximal end having a plurality of spaced-apart attachment elements, each of said attachment elements being capable of cooperating with the blade retention device so as to firmly attach the blade to the oscillatory cutting saw; whereby the attachment of the blade to a oscillatory cutting saw by one of the attachment elements results in a distance between the cutting teeth and the blade retention device which is different from the distance between the cutting teeth and the blade retention device resulting from the attachment to the oscillatory cutting saw by a different attachment element. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A cutting blade for use with an oscillatory cutting saw having a blade retention device such as an oscillatory cutting saw used to surgically cut bone, the cutting blade comprising:
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(a) a central cutting blade shank having a longitudinal axis; (b) a distal end having between about 6 and about 16 teeth disposed substantially on a tangent perpendicular to the longitudinal axis of the cutting blade shank, each tooth being shaped substantially as a right triangle; and (c) a proximal end having a plurality of pairs of opposed notches, each of the notches being capable of cooperating with the blade retention device as to firmly attached the blade to the oscillatory cutting saw; wherein the attachment of the blade to an oscillatory cutting saw by a pair of the opposed notches results in a distance between the cutting teeth and the blade retention device which is different from the distance between the cutting teeth and the blade retention devices which results from the attachment to the oscillatory cutting saw by a different pair of opposed notches. - View Dependent Claims (17, 18, 19, 20)
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Specification