US5019086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manipulable vacuum extractor for childbirth and method of using the same
Assignee: CooperSurgical Inc
•
Filing: 1990-08-13
•
Granted: 1991-05-28
•
Expires: 2010-08-13
Abstract
Abstract An improved vacuum extractor for childbirth including a cup portion with an elongated stem joined thereto. A portion of the elongated stem adjacent to the cup portion is provided with additional flexibility to allow bending of the elongated stem at the point of flexibility thereby permitting the cup to be folded into a position substantially parallel to the elongated stem thereby facilitating insertion into the birth canal. In a preferred embodiment, a separate handle piece is attachable to an end of the elongated stem opposite to the cup portion.
Inventors
- 👤 Theodore C. Neward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42; A61B17/44; A61B17/442; A61B17/30; A61B2017/306; A61B2017/308
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A vacuum extractor for childbirth comprising: a copy with an open front portion and a rear portion; a stem with a hollow interior and a front end and a rear end, the front end being attached to the rear portion of the cup with the interior of the cup communicating with the hollow interior of the stem, wherein a first portion of the front end of the stem adjacent the cup has greater flexibility than the rest of the stem, the first portion being sufficiently flexible to permit temporary bending of the stem to position the cup parallel to the stem for facilitating insertion into the birth canal and wherein the stem has sufficient stiffness (a) to return to an original unbent position when released and (b) to allow a physician to manipulate the extractor and apply a torque to and guide the child's head.
Claim 2
Dependent Claim
145 words
A vacuum extractor for childbirth comprising: a copy with an open front portion and a rear portion; a stem with a hollow interior and a front end and a rear end, the front end being attached to the rear portion of the cup with the interior of the cup communicating with the hollow interior of the stem, wherein a first portion of the front end of the stem adjacent the cup has greater flexibility than the rest of the stem, the first portion being sufficiently flexible to permit temporary bending of the stem to position the cup parallel to the stem for facilitating insertion into the birth canal and wherein the stem has sufficient stiffness (a) to return to an original unbent position when released and (b) to allow a physician to manipulate the extractor and apply a torque to and guide the child's head.
Claim 3
Dependent Claim
19 words
A vacuum extractor according to claim 1 further comprising a handle attachable to the rear end of the stem.
Claim 4
Dependent Claim
27 words
A vacuum extractor according to claim 1 wherein the cup and the stem are of a one-piece construction out of plastic or plastic-like material of suitable stiffness.
Claim 5
Dependent Claim
27 words
A vacuum extractor according to claim 1 wherein the flexible portion comprises a section of the stem adjacent the cup, the section having a reduced wall thickness.
Claim 6
Dependent Claim
153 words
A vacuum extractor for childbirth comprising: a cup with an open front portion and a rear portion; a stem with a hollow interior and a front end and a rear end, the front end being attached to the rear portion of the cup with the interior of the cup communicating with the hollow interior of the stem, the stem including a first flexible portion at the front end adjacent the cup, the first flexible portion having greater flexibility than the rest of the stem to permit temporary bending of the stem to position the cup parallel to the stem for facilitating insertion into the birth canal; and a handle attachable to the rear end of the stem, wherein the stem has sufficient stiffness (a) to return to an original unbent position when released and (b) to allow a physician to manipulate the extractor and apply a torque to and guide the child's head.
Claim 7
Dependent Claim
153 words
A vacuum extractor for childbirth comprising: a cup with an open front portion and a rear portion; a stem with a hollow interior and a front end and a rear end, the front end being attached to the rear portion of the cup with the interior of the cup communicating with the hollow interior of the stem, the stem including a first flexible portion at the front end adjacent the cup, the first flexible portion having greater flexibility than the rest of the stem to permit temporary bending of the stem to position the cup parallel to the stem for facilitating insertion into the birth canal; and a handle attachable to the rear end of the stem, wherein the stem has sufficient stiffness (a) to return to an original unbent position when released and (b) to allow a physician to manipulate the extractor and apply a torque to and guide the child's head.
Claim 8
Dependent Claim
28 words
A vacuum extractor according to claim 5 wherein the cup and the stem are of a one-piece construction out of a plastic or plastic-like material of suitable stiffness.
Claim 9
Dependent Claim
25 words
A vacuum extractor according to claim 5 wherein the flexible portion comprises a section of the stem adjacent the cup with a reduced wall thickness.
Claim 10
Independent Claim
222 words
A method for assisting in the extraction of a child during childbirth comprising the steps of: connecting a vacuum extractor to a vacuum applying device, the vacuum extractor including: (1) a cup portion with an open front portion and a rear portion, (2) a stem with a hollow interior and a front end and a rear end, the front end being attached to the rear portion of the cup portion with the interior of the cup portion communicating with the hollow interior of the stem, the stem including a flexible portion at the front end adjacent the cup portion to permit temporary bending the stem to position the cup portion parallel to the stem, and (3) a handle attached to the rear end of the stem; bending the stem at a point adjacent to the cup portion and positioning the cup portion parallel to the stem; inserting the cup portion in the bent condition to a desired position in the birth canal; releasing the cup portion and allowing the cup portion to return to its original position perpendicular to the stem; positioning the cup portion to the child's head; activating the vacuum applying device to apply a suction to the child's head; and grasping the handle and manipulating the extractor and the child's head to maneuver the child down the birth canal.
Claim 11
Independent Claim
222 words
A method for assisting in the extraction of a child during childbirth comprising the steps of: connecting a vacuum extractor to a vacuum applying device, the vacuum extractor including: (1) a cup portion with an open front portion and a rear portion, (2) a stem with a hollow interior and a front end and a rear end, the front end being attached to the rear portion of the cup portion with the interior of the cup portion communicating with the hollow interior of the stem, the stem including a flexible portion at the front end adjacent the cup portion to permit temporary bending the stem to position the cup portion parallel to the stem, and (3) a handle attached to the rear end of the stem; bending the stem at a point adjacent to the cup portion and positioning the cup portion parallel to the stem; inserting the cup portion in the bent condition to a desired position in the birth canal; releasing the cup portion and allowing the cup portion to return to its original position perpendicular to the stem; positioning the cup portion to the child's head; activating the vacuum applying device to apply a suction to the child's head; and grasping the handle and manipulating the extractor and the child's head to maneuver the child down the birth canal.
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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |