Catheter having pressure detecting ability
US5755668A · kind A · utility
34Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Dec 26, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0215
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter provided with a catheter tube that is inserted into a human body. A sensor detects pressure acting on a distal end of the catheter tube when inserted into the human body and outputs an output signal indicating fluctuations of the pressure. A CPU judges whether the waveform of the output signal contains a regular component and an irregular component and separates the output signal into a regular component and an irregular component based on the judgment. Based on the separated irregular component, a judgment is made as to whether an obstruction is present within an insertion path of the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.