Tissue extraction and collection device
First Claim
1. A tissue extraction and collection device, comprising:
- an outer tube;
a shaft rotatably disposed within the outer tube and having a tissue harvesting tip disposed at a distal end thereof, the tissue harvesting tip being effective to excise tissue upon rotation thereof; and
a tissue collection device coupled to the outer tube for receiving excised tissue and fluid flow therefrom, the tissue collection device being configured to indicate an amount of excised tissue collected therein via one or more indicators included in the tissue collection device, the one or more indicators being effective to indicate displacement of at least a portion of the tissue collection device, the displacement resulting from collection of tissue in the tissue collecting device which overcomes a spring bias.
10 Assignments
0 Petitions
Accused Products
Abstract
Methods and device for extracting and collecting tissue, which can be used for example in tissue engineering and grafting applications, are disclosed. In one embodiment, a device can include an outer tube. A rotatable shaft can be disposed within the outer tube can have a tissue harvesting tip formed on its distal end, the tissue harvesting tip being effective to excise tissue upon rotation thereof. A tissue collection device can be included to receive and collected excised tissue, and the tissue collection device can indicate the amount of tissue collected therein. For example, the tissue collection device can include a straining element which collects excised tissue and an indicator by which to assess the amount of collected tissue. In some embodiments, the tissue collection device can translate to indicate the amount of collected tissue. In many cases, devices disclosed herein can include driving mechanisms that are adapted to drive a tissue harvesting tip such that the tip excises soft tissue, but stops when contacting bone (or soon after contacting bone). In some embodiments, the tissue harvesting tip can be effective to excise viable tissue samples, such that the samples can exhibit desirable proportions of viable cells. Further, in some embodiments, the tissue harvesting tips can excise a tissue sample with tissue particles falling in certain size ranges.
202 Citations
27 Claims
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1. A tissue extraction and collection device, comprising:
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an outer tube; a shaft rotatably disposed within the outer tube and having a tissue harvesting tip disposed at a distal end thereof, the tissue harvesting tip being effective to excise tissue upon rotation thereof; and a tissue collection device coupled to the outer tube for receiving excised tissue and fluid flow therefrom, the tissue collection device being configured to indicate an amount of excised tissue collected therein via one or more indicators included in the tissue collection device, the one or more indicators being effective to indicate displacement of at least a portion of the tissue collection device, the displacement resulting from collection of tissue in the tissue collecting device which overcomes a spring bias. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A tissue extraction and collection device, comprising:
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an outer tube; a shaft rotatably disposed within the outer tube and having a tissue harvesting tip disposed at a distal end thereof, the tissue harvesting tip being effective to excise tissue upon rotation thereof; and a tissue collection device coupled to the outer tube for receiving excised tissue and fluid flow therefrom, the tissue collection device having a container having an inlet and outlet for receiving fluid flow therethrough, a tissue collection chamber movably disposed within the container, wherein the tissue collection chamber moves in response to an amount of tissue collected in the chamber against a bias of a spring, and an indicator effective to indicate longitudinal displacement of the tissue collection chamber within the container. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A tissue extraction and collection device, comprising:
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a housing configured to be grasped by a user; an outer shaft extending distally from a distal end of the housing; an inner shaft rotatably disposed within the outer shaft and having a tissue harvesting tip disposed at a distal end thereof, the tissue harvesting tip being effective to excise tissue upon rotation thereof; a container removably coupled to the housing and in fluid communication with the outer shaft; and a tissue collection chamber movably disposed within the container and biased via a spring toward one of a proximal end and a distal end of the container, the tissue collection chamber being configured to receive and retain tissue excised by the inner shaft while allowing fluid to flow therethrough. - View Dependent Claims (22, 23, 24)
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25. A tissue extraction and collection device, comprising:
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an outer tube; a shaft rotatably disposed within the outer tube and having a tissue harvesting tip disposed at a distal end thereof, the tissue harvesting tip being effective to excise tissue upon rotation thereof; and a tissue collection device coupled to the outer tube for receiving excised tissue and fluid flow therefrom, a portion of the tissue collection device being spring biased and configured to translate along a longitudinal axis of the tissue collection device as tissue is collected therein. - View Dependent Claims (26, 27)
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Specification