Cervix caliper
US11717212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2020 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jan 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are embodiments describing finger calipers with a pair of lever arms pivotally attached to a hand plate via a pivot point at their respective proximal ends. Each of the lever arms extend along the length of a finger and attach to the end of the respective finger via a finger cuff or some other attachment means. Accordingly, the lever arms can open and close, or otherwise splay apart, in a scissor like manner when the fingers that they are attached to open and close or otherwise splay apart. A ratchet system comprised by one of the lever arms and the hand plate allow for one-way motion of the ratcheted lever arm. The other lever arm freely pivots across the hand plate. When a medical examiner is using the finger calipers, they can reliably measure a dilated cervix by reading a corresponding dilation measurement indicium associated with the ratcheted lever arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.