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Intraluminal tissue welding for anastomosis

Patent ·
OSTI ID:871926
 [1];  [2];  [3];  [4]
  1. Livermore, CA
  2. Orinda, CA
  3. Lafayette, CA
  4. Portland, OR
+ Show Author Affiliations
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
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

References (1)

Modeling of endovascular patch welding using the computer program LATIS conference May 1995

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Related Subjects

/606/
agent
anastomosis
assembly
balloon
biocompatible
bond
bonding
bonding agent
brought
catheter
channel
connected
consists
contain
continuous
damage
delivered
deployed
device
disconnected
dye
fiber
form
free
held
hollow
hollow organ
inflatable
inflation
inner
inner wall
intraluminal
intraluminal tissue
joined
laser
laser radiation
layer
light-absorbing
method
minimize
mounted
optical
optical fiber
organ
patch
performing
profile
provide
provided
pulse
radiation
radiation transmitted
retractable
strengthen
target
tissue
tissue damage
tissue welding
transmitted
wall
welded
welding