Title:
PERCUTANEOUS THERAPEUTIC DEVICE FOR FREEZING AND THAWING BLOODSTREAM
Document Type and Number:
Japanese Patent JP2016087055
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a percutaneous therapeutic device for freezing and thawing bloodstream in a blood vessel to an affected part, the device being capable of temporarily stopping the bloodstream for medical treatment without a special obturator and immediately resuming the bloodstream after the medical treatment.SOLUTION: A device according to the present invention includes a come-in and -out duplex gas tube 2 consisted of an inner tube 2A and an outer tube 2B, and a round-shaped probe 1 provided at a distal end of the tube 2 in such a manner that the probe 1 can be independently moved from a tip of a vessel catheter 4 into a vessel. A high pressure argon gas is injected from the inner tube 2A of the come-in and -out duplex gas tube 2 into the round-shaped probe 1 to inflate and cool the vessel immediately to freeze blood around the round-shaped probe 1 and stop downward bloodstream in the vessel. A medical treatment is performed during the stoppage of the bloodstream. After the medical treatment, a high pressure helium gas is injected into the round-shaped probe 1 to inflate, heat up the vessel, and thaw the blood in the vessel to resume the original bloodstream.SELECTED DRAWING: Figure 1
Inventors:
IWATA SADANARI
NAKATSUKA MASAYUKI
KAWAMURA MASAFUMI
NAKATSUKA MASAYUKI
KAWAMURA MASAFUMI
Application Number:
JP2014224286A
Publication Date:
May 23, 2016
Filing Date:
November 04, 2014
Export Citation:
Assignee:
DGS COMPUTER:KK
International Classes:
A61B18/02
Attorney, Agent or Firm:
Yukio Murata
Yoji Onodera
Yoji Onodera