Tissue collection device and methods
First Claim
1. A biological tissue collection device, comprising:
- a housing having a fluid-retaining inner chamber with a bioimplantable, fluid permeable tissue scaffold disposed therein such that the scaffold separates the fluid-retaining inner chamber into a first chamber and a second chamber, wherein the second chamber includes an overflow mechanism located just distal to the scaffold and effective to allow any excess fluid disposed within the second chamber to be released;
a driver mechanism coupled to the housing and effective to create a force within the housing to displace fluid disposed within the second chamber to the first chamber and thereby disperse any biological tissue deposited on the tissue scaffold within the fluid, wherein removal of the force enables the fluid to return to the second chamber and thereby deposit the biological tissue onto the tissue scaffold; and
a jet plate disposed within the second chamber and movable between an original position, in which the jet plate is positioned a distance apart from the first chamber, and a second position, in which the driver mechanism applies a force that causes the jet plate to move toward the first chamber, the jet plate being adapted to agitate fluid disposed within the second chamber as the jet plate moves between the original position and the second position such that biological tissue is uniformly deposited onto the tissue scaffold.
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Accused Products
Abstract
A biological tissue collection device is provided having a housing with a fluid-retaining inner chamber adapted to retain a bioimplantable, fluid permeable tissue scaffold. The scaffold is preferably retained in the housing in such a way that the scaffold separates the fluid-retaining inner chamber into a first chamber and a second chamber. The collection device further includes a driver mechanism coupled to the housing and effective to create a force within the housing to displace fluid disposed within the second chamber to the first chamber. As the fluid is displaced, any biological tissue deposited on the tissue scaffold is dispersed within the fluid. Removal of the force enables the fluid to return to the second chamber and thereby deposit the tissue onto the tissue scaffold. In an exemplary embodiment, the tissue is deposited evenly onto the tissue scaffold.
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Citations
36 Claims
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1. A biological tissue collection device, comprising:
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a housing having a fluid-retaining inner chamber with a bioimplantable, fluid permeable tissue scaffold disposed therein such that the scaffold separates the fluid-retaining inner chamber into a first chamber and a second chamber, wherein the second chamber includes an overflow mechanism located just distal to the scaffold and effective to allow any excess fluid disposed within the second chamber to be released; a driver mechanism coupled to the housing and effective to create a force within the housing to displace fluid disposed within the second chamber to the first chamber and thereby disperse any biological tissue deposited on the tissue scaffold within the fluid, wherein removal of the force enables the fluid to return to the second chamber and thereby deposit the biological tissue onto the tissue scaffold; and a jet plate disposed within the second chamber and movable between an original position, in which the jet plate is positioned a distance apart from the first chamber, and a second position, in which the driver mechanism applies a force that causes the jet plate to move toward the first chamber, the jet plate being adapted to agitate fluid disposed within the second chamber as the jet plate moves between the original position and the second position such that biological tissue is uniformly deposited onto the tissue scaffold. - 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, 24, 25, 26, 27)
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28. A biological tissue collection device, comprising:
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a housing having a proximal chamber with at least one entry port for receiving fluid, a distal chamber, and a tissue scaffold retaining member disposed therebetween, wherein the distal chamber includes an overflow mechanism located just distal to the scaffold and effective to allow any excess fluid disposed within the distal chamber to be released; a driver mechanism coupled to the proximal chamber and effective to create a fluid driving force within the proximal and distal chambers; a driver release mechanism formed in one of the proximal distal chambers and that is effective to release the force applied by the driver mechanism; and a jet plate movably disposed within the distal chamber that, when the driver mechanism is activated, is effective to agitate fluid disposed within the distal chamber to uniformly deposit biological tissue onto a tissue scaffold retained within the tissue scaffold retaining member. - View Dependent Claims (29)
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30. A method of preparing a tissue scaffold, comprising the steps of:
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providing a biological tissue collection device having a housing having a fluid-retaining inner chamber; a bioimplantable, fluid permeable tissue scaffold disposed within the fluid-retaining inner chamber of the housing such that the tissue scaffold separates the fluid-retaining inner chamber into a first chamber and a second chamber, the second chamber including an overflow mechanism located just distal to the scaffold and effective to allow any excess fluid disposed within the second chamber to be released, a driver mechanism coupled to the housing and effective to create a force within the housing, and a jet plate disposed within the second chamber; delivering a biological tissue-containing fluid into the first chamber, wherein the biological tissue is deposited onto the tissue scaffold and the fluid flows though the tissue scaffold and into the second chamber; activating the driver mechanism to cause fluid to be displaced from the second chamber and into the first chamber, the driver mechanism causing the jet plate to agitate the fluid such that any biological tissue deposited on the tissue scaffold is dispersed within the fluid; and releasing the driver mechanism to enable the fluid to return to the second chamber and thereby uniformly deposit the biological tissue onto the tissue scaffold. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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Specification