Title:
CATHETER FOR IMAGE DIAGNOSIS
Document Type and Number:
WIPO Patent Application WO/2014/162492
Kind Code:
A1
Abstract:
[Problem] To provide a catheter for image diagnosis which is capable of better performing a function of obtaining an image with excellent visibility by reducing excess pressure that is applied during priming. [Solution] A catheter for image diagnosis (100) comprises: a drive shaft (102) which is provided with an inspection wave transmission/reception part (101) on a distal end thereof and which includes a signal path (102a) that is connected to the inspection wave transmission/reception part; a sheath (103) in which the drive shaft is contained and which is inserted into the body; an infusion part (124) which is provided on a member (120) that is provided on a base end side of the sheath and is disposed outside the body and which communicates with the inside of the sheath to inject a liquid; and a relief valve (129) which is provided on a communication part (128) that is formed on the member disposed outside the body and communicates with the inside of the sheath, wherein the relief valve reduces excess pressure that accompanies the injection of liquid into the sheath from the infusion part, though the communication part.
Inventors:
YAMAMOTO KEIICHIRO (JP)
Application Number:
PCT/JP2013/060005
Publication Date:
October 09, 2014
Filing Date:
April 01, 2013
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
A61B8/12
Foreign References:
| JP2004337249A | 2004-12-02 | |||
| JPH09289968A | 1997-11-11 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
Hatta international patent business corporation (JP)
Hatta international patent business corporation (JP)
Download PDF: