Organ culture in situ
View Patent ↗A method of increasing blood supply to an ischemic area with a cultured vessel in situ, comprising: 1) selecting a narrow artery responsible to an ischemic area; 2) selecting a vein drawing blood from the ischemic area and can be spared from venous blood return, multiple venous lateral system, and volume conserving venous system; 3) making a hole or flap on opposite lateral walls and wall complex of the artery and vein; 4) connecting the artery and vein so that at least 20% by volume blood in the artery will be lead into the venous network while resistance adjustment remains but total resistance is reduced. The connection allows blood flow through the lumen created between two openings in the vein and artery, and comprises an extravascular wrapping configured to provide extravascular support and promote endothelial cell growth over the interior surface of the connection between vessels.
1. A method of reducing mammal vessel resistance and increasing blood supply and perfusion to an ischemia tissue, area, or organ with a cultured vessel in situ, comprising:
selecting a narrow artery or arteriole which is responsible to a local ischemia tissue, area, or organ,
selecting a vein or venule that is capable of drawing blood from said ischemia area and can be spared from vein blood return, multiple vein lateral system, or volume conserve vein system,
using a microsurgery device to make a hole or a flap on opposite lateral walls or wall complex of said artery or arteriole and said vein or venule, wherein said hole or flap having equivalent dimensions of approximately 10 microns-1 mm in plane and 1-600 microns in depth,
connecting the artery or arteriole to the vein or venule so that at least 20% by volume blood in the artery or arteriole will be lead into the vein network while resistance adjustment of the vessel is remained but total resistance is reduced,
wherein said connection is configured to allow blood flow through the lumen created between two openings in said vein or venule and artery or arteriole, and wherein said connection comprises an extravascular wrapping configured to provide extravascular support and promote endothelial cell growth over the interior surface of the connection between vessels,
wherein the process is performed on cultured vessels in situ.
2. The method of claim 1 wherein said microsurgery device is a removable punch device comprising a laser, circular puncher, reversed deep ultraviolet wave, ultrasound, or a combination thereof.
3. The method of claim 1 further comprising:
providing a tapered micropipette or tip having a diameter approximately 10 microns-1 min with respect to said vessel wall for making a hole, a circle, or a flap having equivalent dimensions of approximately 10 microns-1 mm in plane and 1-600 microns in depth, and
delivering a focused energy or resolvent agent through said pipette or tip in an amount sufficient to free or break down gap, bond, or junction of cells on a selected part of vessel wall to form a permanent blood pass from a small artery to a small vein.
4. The method of claim 1 wherein said microsurgery device comprising a micropipette for delivering a chemical resolvent agent to erode an orifice on the lateral wall of a vessel, or easing endothelial cells to expand and move.
5. The method of claim 1 further comprising a step of providing an adjustable gas for controlling debris motion from a punched vessel wall.
6. The method of claim 1 further comprising a step of injecting a coagulatable fluid around the lumen, hole, or flap that has been made so that said fluid will form a solid vessel-like wall or connection within 20 minutes.
7. The method of claim 1 wherein said connection is shaped as a blood vessel, tissue groove, artificial graft or tube.
8. The method of claim 1 wherein said connection comprises serum, vitreous body component, or a mixture thereof.
9. The method of claim 1 wherein said connection comprises a pharmaceutically effective amount of anti-coagulation agent, endothelium adhesion enhancer or blood circulation increaser.
10. The method of claim 1 further comprising a step of providing a sedative, anxiolytic, or hypnotic drug in an amount effective for enhancing convalescence.