Thrombectomy and tissue removal method
US6471683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1994 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/3203
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for removing a thrombus or other tissue deposit from the cardiovascular system, natural or synthetic tubule or cavity found in the human body of a patient without the need to surgically access the location of the thrombus or other tissue deposit via a cut-down or other surgical procedure. A catheter is inserted percutaneously into the patient at a convenient location either directly or over a previously positioned guidewire or inside a guide catheter. The distal end of the catheter is advanced under fluoroscopy to the site of the thrombus or tissue deposit. Alternatively, the catheter may be positioned at the desired location by surgical procedure. An elastic balloon may be inflated to stabilize the position of the distal end of the catheter within the center of the vessel lumen. A dilatation balloon may be inflated perioperatively to dilate the underlying vessel or tubule lesion. A flexible metal or high pressure plastic tube conveys an extremely high pressure stream of sterile saline or other physiologic solution to at least one jet at the distal end of the catheter. At least one jet is directed at the opening of a large exhaust lumen or other target. The jet(s) is respo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.