Method and device for controlling the introduction depth of an injection needle
US6482176B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Oct 2, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/46
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a method for controlling the introduction depth of an injection needle 1 which is mounted inside a needle introduction device 17, 18 so as to be capable of axial displacement relative to an injection device 12 coupled to said needle introduction device or arranged in the same. The maximum possible run of the injection needle is set to a value H and can be shortened using a cylindrical hollow spacing member 21 which can be concentrically mounted about said injection needle 1. Since the maximum possible run H of the injection needle can be shortened using the spacing member 21, it is thus possible to obtain a penetration depth of variably range. To this end, it is possible to use a series of spacing members 21 having different axial lengths x or a spacing member which can be screwed in a front position. The cylindrical hollow spacing member 21, which is concentrically mounted about the injection needle 1, is easy to press down to the chosen introduction depth into the needle introduction device 17, 18 presently used as it is clicked in or screwed in a front position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.