Chiropractic adjusting instrument
US4116235A · kind A · utility
Inventors
Key dates
| Filing date | Jun 20, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Jun 20, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H1/008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A chiropractic adjusting instrument in the form of a manually operated and controlled device having a body contact member to apply a thrust force in a specific line of drive at a very rapid speed with this instrument replacing the previous technique of using thumb thrust having the speed generated by rapid movement of the elbows together. The instrument includes a longitudinally reciprocal spring biased member having a resilient body contact element on the end thereof and a manually movable handle connected thereto for compressing the resilient spring with adjustable means being provided for releasing the spring and contact after a predetermined compression of the spring, thereby enabling a controlled force of adjustment to be applied at a rapid speed and in a precise line of drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.