SELECTABLE STROKE CUTTER
First Claim
1. A biological tissue cutting device configured and arranged to provide multiple selectable strokes, the device comprising:
- a cutting blade tip configured and arranged to be driven in reciprocating motion; and
a cutting tip including one or more ports configured and arranged to receive the cutting blade tip, wherein the one or more ports are configured and arranged to provide a variable aperture size based on the position of the cutting blade tip within the cutting tip.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus, systems, and devices are described that utilize an adjustable biological tissue cutting handpiece that is based on selectable settings. The biological tissue cutting handpiece includes a cutter tip that allows multiple duty cycles as well as multiple port configurations. For example, when working next to the retina, the port could be adjusted to be a smaller size, allowing delicate membrane dissection. When working near or in less sensitive tissue, e.g. the center of the eye, the port could be wide open. The port aperture size can be independent of cut speed, allowing a surgeon to work at high speed both next to the retina and away from the retina. High speeds have been shown to have increased tissue (e.g., vitreous) removal, e.g., in 25 and 23-gauge instruments. Duty cycle is not necessarily dependent on cut speed, allowing high cutter performance and varied flow characteristics.
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Citations
28 Claims
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1. A biological tissue cutting device configured and arranged to provide multiple selectable strokes, the device comprising:
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a cutting blade tip configured and arranged to be driven in reciprocating motion; and a cutting tip including one or more ports configured and arranged to receive the cutting blade tip, wherein the one or more ports are configured and arranged to provide a variable aperture size based on the position of the cutting blade tip within the cutting tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of using a cutting device configured and arranged to provide multiple selectable strokes, the method comprising:
adjusting the stroke length of a cutting blade tip, independent of the operation speed of the cutting blade tip. - View Dependent Claims (25, 26, 27, 28)
Specification