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.
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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.
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Citations
52 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for extracting and collecting tissue, comprising:
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excising tissue with a rotatable tissue harvesting tip formed at a distal end of a rotatable shaft; transporting the excised tissue to a tissue collection device via a vacuum force; and
,indicating an amount of excised tissue collected in the tissue collection device via one or more indicators included in the tissue collection device. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A tissue extraction device, comprising:
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a tissue harvesting tip rotatably disposed at the distal end of a shaft, the tissue harvesting tip being effective to excise tissue upon rotation thereof, and a driver mechanism coupled to the tissue harvesting tip and effective to apply a torque to the tissue harvesting tip such that the tissue harvesting tip rotates to excise soft tissue and stops rotating when the tissue harvesting tip contacts bone sufficiently fast so as to produce a tissue sample substantially free of bone contamination. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A tissue extraction device, comprising:
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a tissue harvesting tip rotatably disposed at a distal end of a shaft, the tissue harvesting tip being effective to excise a viable tissue sample upon rotation thereof, and, a driver mechanism coupled to the tissue harvesting tip and effective to rotate the tissue harvesting tip. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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45. A tissue extraction device, comprising:
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a tissue harvesting tip rotatably disposed at the distal end of a shaft and effective to excise tissue particles upon rotation thereof, at least some of the excised tissue particles having a size in a range of about 0.01 mm3 to 3 mm3; and a driver mechanism coupled to the tissue harvesting tip and effective to rotate the tissue harvesting tip. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52)
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Specification