Method of preparing urinary catheter having balloon of three cavities at top end of urinary catheter
US12420055B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2024 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Dec 27, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of preparing a urinary catheter having a balloon of three cavities at a top end thereof includes: step 1, preparing a catheter having one urinary guiding cavity and three water injection cavities, cutting two ends of the catheter to be flat; step 2, cutting from a top end of the catheter having the four cavities from the catheter longitudinally to form three separated catheters, each having one second cavity, closing a top end of each of the three catheters; step 3, hot-pressing the three catheters by placing the three catheters in a steel plate for 40° C. to 60° C. and 5 min to 15 min at 5 kg to 7.5 kg, trimming the outer wall of the catheters; step 4, connecting top ends of the catheters to each other, taking a guide thread to pass through the urinary guiding cavity to be connected to the top ends of the catheters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.