Tissue extraction and maceration device
First Claim
1. A tissue extraction and maceration device, comprising:
- a housing having proximal and distal ends;
an outer tube fixedly coupled to and extending distally from the housing and having a substantially open distal end configured to be placed on a tissue surface;
a shaft rotatably disposed within the outer tube and having proximal and distal ends, the shaft being slidably movable relative to the outer tube between a proximal position in which the shaft is fully disposed within the outer tube and a distal position in which a portion of the distal end of the shaft extends beyond the open distal end of the outer tube;
a tissue harvesting tip formed on the distal end of the shaft, the tissue harvesting tip having a plurality of cutting teeth configured to excise a tissue sample; and
a tissue collection device coupled to the housing and in fluid communication with the outer tube such that tissue excised by the tissue harvesting tip is delivered to the tissue collection device.
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Accused Products
Abstract
Devices and methods are provided for extracting and macerating tissue, and optionally for depositing the tissue onto a tissue scaffold. The device generally includes an outer tube having a substantially open distal end that is adapted to be placed on and preferably to form a seal with a tissue surface, and a shaft rotatably disposed within the outer tube and movable between a first, proximal position in which the shaft is fully disposed within the outer tube, and a second, distal position in which a portion of a distal end of the shaft extends through the opening in the distal end of the outer tube. The device also includes a tissue harvesting tip formed on the distal end of the shaft that is effective to excise a tissue sample when the shaft is moved to the distal position, and a cutting member that is coupled to the shaft at a position proximal to the tissue harvesting tip. The cutting member is effective to macerate a tissue sample excised by the tissue harvesting tip.
203 Citations
17 Claims
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1. A tissue extraction and maceration device, comprising:
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a housing having proximal and distal ends; an outer tube fixedly coupled to and extending distally from the housing and having a substantially open distal end configured to be placed on a tissue surface; a shaft rotatably disposed within the outer tube and having proximal and distal ends, the shaft being slidably movable relative to the outer tube between a proximal position in which the shaft is fully disposed within the outer tube and a distal position in which a portion of the distal end of the shaft extends beyond the open distal end of the outer tube; a tissue harvesting tip formed on the distal end of the shaft, the tissue harvesting tip having a plurality of cutting teeth configured to excise a tissue sample; and a tissue collection device coupled to the housing and in fluid communication with the outer tube such that tissue excised by the tissue harvesting tip is delivered to the tissue collection device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification