APPARATUS AND METHOD FOR TISSUE ADHESION
First Claim
1. A tissue adhesion device, comprising:
- a substrate (14) having a contact surface (30); and
an array of microposts (12) extending from the contact surface of the substrate, said microposts fabricated from a shape memory material and having a proximal end (10) secured to substrate, a sharpened tissue penetrating distal end (18) with a deployment state with the microposts in a substantially straightened configuration substantially parallel to adjacent microposts and an engaged state wherein a distal section of the micropost engages to mechanically capture tissue adjacent thereto.
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Accused Products
Abstract
An array of a plurality of shape memory material microposts (12) have a proximal end (10) configured to be secured to a substrate (14) with a tissue penetrating distal end (18). The microposts further have a deployment state with the microposts (12) in a substantially straightened configuration with a substantially smooth and continuous outer surface which is substantially parallel to adjacent microposts and an engaged state wherein at least a section of the microposts (12′) assume a configuration that is not substantially parallel to adjacent microposts or is not substantially straight with a substantially smooth and continuous outer surface so as to mechanically capture tissue adjacent thereto
104 Citations
25 Claims
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1. A tissue adhesion device, comprising:
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a substrate (14) having a contact surface (30); and an array of microposts (12) extending from the contact surface of the substrate, said microposts fabricated from a shape memory material and having a proximal end (10) secured to substrate, a sharpened tissue penetrating distal end (18) with a deployment state with the microposts in a substantially straightened configuration substantially parallel to adjacent microposts and an engaged state wherein a distal section of the micropost engages to mechanically capture tissue adjacent thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tissue adhesion patch comprising:
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a pad (52) having a tissue interface surface(50); an array of microposts (12) extending from the interface surface of the pad, said microposts fabricated from a shape memory material and having a proximal end secured to substrate, a sharpened tissue penetrating distal end (10) with a deployment state with the microposts in a substantially straightened configuration substantially parallel to adjacent microposts and an engaged state wherein a distal section of the micropost engages to mechanically capture tissue adjacent thereto. - View Dependent Claims (10, 11, 12)
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13. A tissue adhesion system comprising:
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an elastically expandable substrate (60, 70, 80); an array of microposts (12) extending from the external surface of the substrate, said microposts fabricated from a shape memory material and having a proximal end secured to substrate, a sharpened tissue penetrating distal end with a deployment state with the microposts in a substantially straightened configuration substantially parallel to adjacent microposts and an engaged state wherein a distal section of the micropost engages to mechanically capture tissue adjacent thereto. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for tissue adhesion comprising
providing a substrate having a contact surface; - and
forming an array of microposts extending from the contact surface of the substrate, said microposts fabricated from a shape memory material and having a proximal end secured to substrate, a sharpened tissue penetrating distal end; deploying the microposts into tissue for a desired procedure in a substantially straightened configuration substantially parallel to adjacent microposts; and
,engaging the microposts by activation of the shape memory material wherein a distal section of the micropost mechanically captures tissue adjacent thereto. - View Dependent Claims (21, 22, 25)
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24. The method for tissue adhesion as defined in claim 23 wherein the implantable device is a stent.
Specification