US3613662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold conization instrument
Assignee: Individual
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Filing: 1970-02-27
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Granted: 1971-10-19
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Expires: 1990-02-27
Abstract
Abstract A medical instrument for removal of a conical section of tissue from the cervical is including the endocervical canal for obtaining a biopsy specimen in a procedure known as cold conization. The instrument utilizes a pistol grip on the body portion and a pneumatic air motor for reciprocal movement of a pair of coacting arcuate blades which may be rotated about the longitudinal centerline of the instrument and are positioned to remove a uniform conical biopsy section.
Inventors
- 👤 Stavro A Chrysostomides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:17
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0291; A61B17/00; A61B17/42; A61B2017/4216; A61B2017/4225; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
A cold conization instrument for removal of a conical biopsy specimen from the uterus comprising: handle means having a grip, a barrel and a pair of closely adjacent slidably movable cutting blade means, said barrel having a rotatable guide arm, a forward blade-receiving guide means on one end of said guide arm and a motion-transmitting means on the other end of said guide arm; a blade support and retainer means intermediate of and extending from said guide means, said forward blade guide means and said blade retainer means constituting a means defining an arcuate path for said pair of cutting blade means said motiontransmitting means having rotation means at one end and cutting blade-mounting means on the other end all being freely rotatable in either direction with said guide arm pneumatic motor means connected to said motion-transmitting means for providing rotary motion; cam means for transforming the rotary motion to linear motion; and reciprocating means for applying the linear motion to said arcuate cutting means, whereby rotation and linear motion of said blade means effect efficient removal of a conical biopsy specimen.
Claim 2
Dependent Claim
182 words
A cold conization instrument for removal of a conical biopsy specimen from the uterus comprising: handle means having a grip, a barrel and a pair of closely adjacent slidably movable cutting blade means, said barrel having a rotatable guide arm, a forward blade-receiving guide means on one end of said guide arm and a motion-transmitting means on the other end of said guide arm; a blade support and retainer means intermediate of and extending from said guide means, said forward blade guide means and said blade retainer means constituting a means defining an arcuate path for said pair of cutting blade means said motiontransmitting means having rotation means at one end and cutting blade-mounting means on the other end all being freely rotatable in either direction with said guide arm pneumatic motor means connected to said motion-transmitting means for providing rotary motion; cam means for transforming the rotary motion to linear motion; and reciprocating means for applying the linear motion to said arcuate cutting means, whereby rotation and linear motion of said blade means effect efficient removal of a conical biopsy specimen.
Claim 3
Dependent Claim
41 words
The conization instrument of claim 1 wherein said pneumatic motor means are mounted with a cylindrical housing; drive shaft means attached to said motor means by connecting means; said cam means attached to said drive shaft means and said reciprocating means.
Claim 4
Dependent Claim
59 words
The conization instrument of claim 1 wherein the flat sides of the cutting blade means are substantially horizontal when the handle means is vertical and further including adjustment means for altering the degree of arc of said cutting means to adjust the dimensions of the conical section removed in accordance with amount of tissue or thickness of specimen required.
Claim 5
Dependent Claim
19 words
The conization instrument of claim 2 wherein said continuous means includes reduction gear means for obtaining proper rotary motion.
Claim 6
Dependent Claim
74 words
The conization instrument of claim 1 in which said motion-transmitting means includes housing means attached to said rotation means and encompassing said pneumatic motor means; a lock retainer secured to said housing means on the end thereof opposite from said rotation means for accurately maintaining the position of said pneumatic motor means; arm means attached to said lock retainer means; and said reciprocating means mounted on said arm means for driving said cutting means.
Claim 7
Dependent Claim
114 words
The conization instrument of claim 1 wherein said arcuate cutting means comprises: a pair of blades including an inner blade having an elongated slot spaced from one end thereof; an aperture for receiving a lockpin spaced from said slot toward the other end of said blades; the other of said pair of blades having an aperture for receiving a lockpin adjacent one end thereof; an elongated slot spaced from said aperture toward the other end of said blade; and each of said blades having serrations adjacent the other of said ends thereof, whereby reciprocating action of said reciprocating means effects reciprocation of said blades for rapid and smooth removal of a conical biopsy specimen.
Claim 8
Dependent Claim
42 words
The conization instrument of claim 6 wherein said reciprocating means comprises a forward slide having a retainer thereon for attachment to one of said blades; a rear slide having a retainer thereon for operation of the other of said pair of blades.
Claim 9
Dependent Claim
29 words
The conization instrument of claim 7 wherein said reciprocating means includes pins extending inwardly from each of said slides for sliding movement in a groove in said cam means.
Claim 10
Dependent Claim
81 words
The conization instrument of claim 8 wherein said arm means includes a pair of diametrically opposed elongated slots adjacent to but spaced from the end attached to said lock retainer means; said forward slide having a slot therein in communication with one of said pair of slots in said arm means whereby said rear slide pin may extend through said slots into said groove in said cam means and said pin is permitted reciprocal movement along the centerline of said instrument.
Claim 11
Dependent Claim
59 words
The conization instrument of claim 6 including ring means on the interior of said arm means; bearing means mounted around said drive shaft means and held by said ring means against said cam means; a nut threadedly engaging the end of said drive shaft means for fixedly locating said cam means against said bearing means on said drive shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |