Flanged self-closing microchannel array
View Patent ↗Devices and methods for implanting neural interface technology in mammals are provided. A device can include an array of self-closing channels; two flanges that flank the array of channels, the flanges can be used to open the self-closing channels; and a plurality of cuff electrodes disposed at a circumference of each self-closing channel, the plurality of cuff electrodes being optimally disposed to detect a maximum amplitude of an action potential signal.
1. An implantable device, configured to separate nerve strands in mammals, comprising:
an array of tubular self-closing channels, the array having a top side,
each self-closing channel being defined by a wall including a channel wall portion with a longitudinal slit along a length of the top side of each channel and perpendicular to the top side with adjacent wall portions being connected and forming an array of slits;
each self-closing channel including an aperture at each end; and
two flanges that flank the array of slits in substantially a common plane with the slits, the flanges being configured to pull the array of slits in opposite directions and simultaneously open all of the longitudinal slits of the array of self-closing channels without substantially bending the flanges relative to one another, such that, when the flanges are pulled to open the slits, nerve strands placed parallel over the longitudinal slits are dropped through the slits and into the channels and, when the flanges are released the slits close, thereby compartmentalizing the nerve strands in the channels.
2. The device of claim 1 , the array of the self-closing channels being aligned in parallel.
3. The device of claim 1 , the aperture of the closed channels having a diameter of from 50 μm to 500 μm.
4. The device of claim 1 , the channel wall being a width of from 20 μm to 100 μm.
5. The device of claim 1 , the channels having a length between the apertures of from 1 mm to 10 mm.
6. The device of claim 1 , the self-closing channels being adapted to contain at least one of stem cells and Schwann cells.
7. The device of claim 1 , the self-closing channels including a biocompatible elastic material.
8. The device of claim 1 , the self-closing channels including a porous material.
9. The device of claim 1 , further comprising:
chemical and/or biological factors to increase and stabilize regeneration including laminin, chondroitinase, and/or a nerve growth factor (NGF).
10. The device according to claim 1 , wherein the array comprises three or more self-closing channels.
11. A device for implanting neural interface technology in mammals comprising:
an array of tubular self-closing channels, the array having a top side,
each self-closing channel being defined by a wall including a channel wall portion with a longitudinal slit along a length of the top side of each channel and perpendicular to the top side with adjacent wall portions being connected and forming an array of slits;
each self-closing channel including an aperture at each end; and
two flanges that flank the array of slits in substantially a common plane with the slits, the flanges being configured to pull the array of slits in opposite directions and simultaneously open all the longitudinal slits of the array of self-closing channels without substantially bending the flanges relative to one another, such that, when the flanges are pulled to open the slits, nerve strands placed parallel over the longitudinal slits are dropped through the slits and into the channels and, when the flanges are released the slits close, thereby compartmentalizing the nerve strands in the channels
a plurality of cuff electrodes disposed at a circumference of each self-closing channel,
the aperture of the closed channels having a diameter of from 50 μm to 500 μm,
the channel wall being a width of from 20 μm to 100 μm, and
the channels being a length of from 1 mm to 10 mm.
12. The device according to claim 11 , wherein the array comprises three or more self-closing channels.