Vacuum device to assist in the drawing of capillary blood samples
US6605048B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2000 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/150343
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vacuum device is provided which assists in the drawing of blood samples from alternative puncture sites such as the forearm, abdomen or inner thigh and which may advantageously be used by diabetics. The device includes a hollow body which slidably receives a hollow plunger. A transparent cylindrical tip is attached to the lower end of the hollow body. A spring is carried inside the hollow body and hollow plunger, the lower end of the spring seating against a webbing formed in the transparent tip and the upper end seating against the upper end of the plunger. The device is actuatable by the thumb and two fingers of one hand. The plunger is depressed, the device is placed over a preexisting puncture site, and the plunger is released wherein the internal spring drives the plunger upwardly and creates a vacuum at the puncture site, allowing the user to easily see the formation of a droplet of adequate size for obtaining the necessary blood reading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.