EP0422689A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catheter
Assignee: Mountpelier Investments
•
Filing: 1987-01-09
•
Granted: —
•
Expires: 2007-01-09
Abstract
Abstract Medical treatment apparatus for sustaining the vitality of an organ in the gastrointestinal tract by catheterisation including improvements in catheter placement, ischemia detection, and oxygenation. A disclosed embodiment of the catheter has magnetically responsive structure at its top and a device for aid in placement of the catheter has an electromagnet cooperative with the magnetic tip. The catheter (170) has a lumen (178) through its length to receive a removable guide wire (174).
Inventors
- 👤 Richard G. Fiddian-Green
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:47
CPC Classifications
A; A61; A61M; A61M25/00; A61M1/00; A61M1/14; A61M1/16; A61M1/1678; A61M25/01; A61M25/0105; A61M25/0127; G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/497; A61M1/1698; A61M2202/00; A61M2202/02; A61M2202/0208; A61M2202/0225; A61M2210/00; A61M2210/10; A61M2210/1042; A61M2210/106
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A catheter comprising a soft pliable tube (12) for introduction into the gastrointestinal tract, a walled sampling chamber (26) on the tube comprising a wall (20) of material which is freely permeable to gas but poorly permeable to liquids, the sampling chamber being in communication with said tube so that fluid can be introduced into said chamber via said tube, a magnetically responsive means on said catheter providing for electromagnetic attraction with an electromagnetic influence which is external to the catheter, and a separate lumen (178) through the catheter for guiding of the catheter (170) on a guidewire (174).
Claim 2
Dependent Claim
99 words
A catheter comprising a soft pliable tube (12) for introduction into the gastrointestinal tract, a walled sampling chamber (26) on the tube comprising a wall (20) of material which is freely permeable to gas but poorly permeable to liquids, the sampling chamber being in communication with said tube so that fluid can be introduced into said chamber via said tube, a magnetically responsive means on said catheter providing for electromagnetic attraction with an electromagnetic influence which is external to the catheter, and a separate lumen (178) through the catheter for guiding of the catheter (170) on a guidewire (174).
Claim 3
Dependent Claim
19 words
A catheter according to claim 1, wherein a removable guide wire (174) is threaded through said separate lumen (178).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.