Patent US4777947A successfully refreshed from Google Patents.
US4777947A
Expired / Lapsed
US
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Endocervical curette
Assignee: ROLAND J ZWICK Inc A CORP OF CA
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Filing: 1986-09-23
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Granted: 1988-10-18
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Expires: 2006-09-23
Abstract
Abstract An endoservical curette is disclosed which has a detachable tip portion which includes a scraper for removing tissue from the cervical canal and a well for retaining the tissue. The tip portion is secured to a shaft portion when in use to collect tissue and then detached from the shaft before being sent to a laboratory for analysis of the collected tissue.
Inventors
- 👤 Roland J. Zwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:59
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0291; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320708
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
An endocervical curette comprising a handle, a hollow shaft having one end secured to said handle and the other end including notches and protrusions, a disposable tip having an end with notches and protrusions for engaging the other end of said shaft and a threaded hole, said tip including a scraper for removing tissue and a well for receiving and retaining scraped tissue, a rod extending through said handle and shaft with one end extending beyond said shaft, said one end being threaded to threadably engage said tip and hold the same in engagement with the other end of said shaft to prevent rotation of the tip with respect to the shaft to permit said tip with retained tissue to be released by unthreading the rod.
Claim 2
Dependent Claim
126 words
An endocervical curette comprising a handle, a hollow shaft having one end secured to said handle and the other end including notches and protrusions, a disposable tip having an end with notches and protrusions for engaging the other end of said shaft and a threaded hole, said tip including a scraper for removing tissue and a well for receiving and retaining scraped tissue, a rod extending through said handle and shaft with one end extending beyond said shaft, said one end being threaded to threadably engage said tip and hold the same in engagement with the other end of said shaft to prevent rotation of the tip with respect to the shaft to permit said tip with retained tissue to be released by unthreading the rod.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |