No coin nor oath required. For personal study only.
This invention relates to a seal to be used with a trocar for introducing surgical instruments, guidewires, dilators, catheters or similar instruments into a patient. The seal is in a closed, or sealed, position when no instrument is inserted in the seal, when the seal is in an unstressed condition. It is opened when an instrument is inserted in the seal.
๐ SIMILAR VOLUMES
## Bespak PLC, UK A thermoplastic elastomer material for the manufacture of seals in pharmaceutical dispensing devices is described. It is formed from a blend including a propylene component with isotactic crystallinity; and one or more polymer of polypropylene, polyethylene or their copolymers.
## Paltexa Ltd, Eire This patent is particularly concerned with the joints in telecommunication cables of which up to 50% are estimated to leak in some countries. It discloses a series of steps to locate leaks or potential leak sites using a pressure testing apparatus. The leaks