Instruments and methods for the implantation of cell-seeded substrates
First Claim
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1. An instrument for an implantation of a substrate into a target tissue of a subject, comprising:
- a handpiece comprising a proximal end and a distal end, said distal end comprising an orifice;
an outer housing extending in a distal direction from said handpiece, a distal end of the outer housing terminating in a bevel;
an internal shaft configured to be longitudinally moveable within said outer housing and said handpiece;
forceps connected with the internal shaft;
a shaft movement control mechanism; and
a planar substrate having a tail and a body of a same thickness as the tail,wherein activation of said movement control mechanism causes longitudinal movement of said internal shaft and forceps;
wherein movement of said internal shaft in a proximal direction is configured to cause said forceps to grasp the tail of the substrate, induce a rolling of the substrate against the bevel of said outer housing, and retract the substrate within said outer housing, andwherein movement of said internal shaft in a distal direction is configured to cause the substrate to exit said outer housing and unroll and cause said forceps to open.
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Abstract
Disclosed herein are instruments and methods for delivery of substrates, including cell-seeded substrates, to target tissues requiring treatment for various diseases that induce cell death, damage or loss of function. The substrates are configured to provide cells, including stem cells, with a structural support that allows interconnection with and transmission of biological signals between the cells and the target tissue.
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Citations
17 Claims
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1. An instrument for an implantation of a substrate into a target tissue of a subject, comprising:
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a handpiece comprising a proximal end and a distal end, said distal end comprising an orifice; an outer housing extending in a distal direction from said handpiece, a distal end of the outer housing terminating in a bevel; an internal shaft configured to be longitudinally moveable within said outer housing and said handpiece; forceps connected with the internal shaft; a shaft movement control mechanism; and a planar substrate having a tail and a body of a same thickness as the tail, wherein activation of said movement control mechanism causes longitudinal movement of said internal shaft and forceps; wherein movement of said internal shaft in a proximal direction is configured to cause said forceps to grasp the tail of the substrate, induce a rolling of the substrate against the bevel of said outer housing, and retract the substrate within said outer housing, and wherein movement of said internal shaft in a distal direction is configured to cause the substrate to exit said outer housing and unroll and cause said forceps to open. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An instrument for an implantation of a substrate into a target tissue of a subject, comprising:
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a handpiece comprising a proximal end and a distal end, said distal end comprising an orifice; an outer housing extending in a distal direction from said handpiece, a distal end of the outer housing terminating in a bevel; an internal shaft configured to be longitudinally moveable within said outer housing and said handpiece; forceps connected with the internal shaft; a shaft movement control mechanism; and an injection pathway within the outer housing, wherein activation of said movement control mechanism causes longitudinal movement of said internal shaft and forceps; wherein movement of said internal shaft in a proximal direction is configured to cause said forceps to grasp a tail of the substrate, induce a rolling of the substrate against the bevel of said outer housing, and retract the substrate within said outer housing, and wherein movement of said internal shaft in a distal direction is configured to cause the substrate to exit said outer housing and unroll and cause said forceps to open. - View Dependent Claims (15, 16, 17)
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Specification