Blood collecting tube
US5033476A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/150732
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The blood collecting tube of the present invention has a tubular body that is opened at one end and closed at the other end and a sealing member which is bonded to the peripheral edge of the opening of the tubular body so as to seal this opening. Also, the blood collecting tube of the present invention has a tubular body that is opened at one end and is closed at the other end and a sealing member which can be pierced by a hollow needle and is bonded to peripheral edge of the opening of the tubular body to seal the opening in which the internal pressure of the tubular body is suitable reduced in accordance with the amount of blood to be collected, and the aforesaid sealing member is made up of: a gas barrier member having high air-tightness for substantially maintaining the degree of reduction in the internal pressure of the blood collecting tube during a period up to blood collection; and a sealing element capable of stopping up the needle hole which might remain after extraction of the hollow needle which has been stuck into the sealing member for blood collection. Accordingly, it is possible to provide a blood collecting tube which does not require any unplugging operation for e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.