Intraluminal tissue welding for anastomosis

Patent · Tue Oct 27 00:00:00 EST 1998

OSTI ID:871926

Glinsky, Michael ^[1]; London, Richard ^[2]; Zimmerman, George ^[3]; Jacques, Steven ^[4]

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1. Livermore, CA
2. Orinda, CA
3. Lafayette, CA
4. Portland, OR

A method and device are provided for performing intraluminal tissue welding for anastomosis of a hollow organ. A retractable catheter assembly is delivered through the hollow organ and consists of a catheter connected to an optical fiber, an inflatable balloon, and a biocompatible patch mounted on the balloon. The disconnected ends of the hollow organ are brought together on the catheter assembly, and upon inflation of the balloon, the free ends are held together on the balloon to form a continuous channel while the patch is deployed against the inner wall of the hollow organ. The ends are joined or "welded" using laser radiation transmitted through the optical fiber to the patch. A thin layer of a light-absorbing dye on the patch can provide a target for welding. The patch may also contain a bonding agent to strengthen the bond. The laser radiation delivered has a pulse profile to minimize tissue damage.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5827265
• Application Number: 08/801224
• OSTI ID: 871926
• Country of Publication: United States
• Language: English

Related Subjects

intraluminal
tissue
welding
anastomosis
method
device
provided
performing
hollow
organ
retractable
catheter
assembly
delivered
consists
connected
optical
fiber
inflatable
balloon
biocompatible
patch
mounted
disconnected
brought
inflation
free
held
form
continuous
channel
deployed
inner
wall
joined
welded
laser
radiation
transmitted
layer
light-absorbing
dye
provide
target
contain
bonding
agent
strengthen
bond
pulse
profile
minimize
damage
tissue damage
radiation transmitted
bonding agent
inner wall
optical fiber
laser radiation
hollow organ
tissue welding
intraluminal tissue
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