Introducer assembly
US5366446A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1993 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Nov 17, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3492
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Introducer assembly for use on the skin of a patient overlying a cavity to be formed in the patient permitting the introduction of an introducer tube having a distal extremity and having a trocar therein having a distal extremity which extends beyond the distal extremity of the introducer tube. The assembly comprises a sleeve having proximal and distal extremities and having a flow passage extending therethrough from the proximal to the distal extremities. A flange having inner and outer margins is provided. The outer margin has a bottom side. An adhesive is secured to the bottom side and is adapted to make a sealing engagement with the skin of the patient. A fluid-tight seal is formed between the inner margin of the flange and the sleeve. A membrane extends across the sleeve and forms a fluid-tight seal with respect to said sleeve. The membrane is formed of a material and a thickness which can be readily punctured by the trocar. The membrane forms a substantially fluid-tight seal between the trocar as it penetrates the same and with the introducer tube after it extends through the membrane. A clamp is carried by the sleeve and is spaced from the membrane and is adapted to retain t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.