Indwelling catheter device
Abstract
Abstract AN INDWELLING CATHETER DEVICE IS PROVIDED FOR USE IN AN INTRAVENOUS CATHETER PLACEMENT UNIT OR INFUSION SET TO PERMIT THE INTRODUCTION OF WITHDRAWAL OF LIQUIDS FROM A HUMAN BODY. THE CATHETER DEVICE INCLUDES AN ELONGATED FLEXIBLE TUBE SECTION OF A LOW FRICTION MATERIAL PREFERABLY FLUORINATED ETHYLENE PROPYLENE POLYMERS OR TETRAFLUOROETHYLENE POLYMERS HAVING A TUBULAR PREFERABLY THERMOPLASTIC COLLAR MEMBER MOUNTED THEREON WITH AN INTERFERENCE FIT ADJACENT AN ENLARGE FLANGE OF THE ELONGATED FLEXIBLE TUBE SECTION. A HUB ELEMENT OF A DIFFERENT HIGHER FRICTION MATERIAL, SUCH AS POLYETHYLENE IS INSERT MOLDED OVER AND AROUND THE TUBULAR COLLAR MEMBER AND ENLARGED INTERGAL FLANGE OF THE ELONGATED FLEXIBLE TUBE SECTION TO FORM A UNITARY CATHETER DEVICE. THE HEAT OF THE MOLDING OPERATION CAUSES A CHEMICAL BONDING OR FUSING OF THE MATERIAL OF THE HUB TO THE MATERIAL OF THE COLLAR SO AS TO PROVIDE A FLUID TIGHT BETWEEN THE HUB AND CATHETER TUBE. D R A W I N G
Inventors
- 👤 L Diettrich
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |