US5139503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Obstetrical spatulas
Assignee: Individual
•
Filing: 1990-11-28
•
Granted: 1992-08-18
•
Expires: 2010-11-28
Abstract
Abstract A pair of obstetrical spatulas especially useful during the second stage or expulsion stage of labor during childbirth to assist in helping the fetal head to exit from the pelvic outlet by closely simulating the normal movements of the fetal head in the birth canal. Each spatula includes a blade provided with cephalic curve configuration to conform with and engage the fetal head with the blades including a shank or pedicule which form an angle of approximately 35° with the longitudinal axis of the blades to provide a perineal curve. The pedicules are connected to a semicircular segment by a hinge at each end of the semicircular segment to enable articulate movement of the pedicules and blades in directions toward and away from each other and in longitudinal or axial directions. One of the hinge connections between the pedicule and semicircular segment is separable to enable more effective and accurate positioning of the blades in relation to the fetal head and pelvic outlet by individually positioning the blades after which the hinge is connected. A traction bar and handle with a force indicator is connected to the semicircular segment to control and indicate the traction force exerted on the spatulas.
Inventors
- 👤 Salvador Salas-Ceniceros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42; A61B17/44; A61B2017/445
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
125 words
An apparatus for assisting in the delivery of a baby during the second stage or expulsion stage of labor comprising a pair of spatulas, a connecting member hingedly connected to and extending between one end of the spatulas to enable the spatulas to be positioned in generally coextensive diverging relation from the connecting member when in use, a traction assembly attached centrally to the connecting member and including handle means connected to the connecting member to enable the connecting member to be pivoted to an angular position to orient one spatula generally longitudinally adjusted in relation to the other spatula to facilitate exit of the fetal head from the pelvic outlet of a mother and to correct asinclitic positions of the fetal head during birth.
Claim 2
Independent Claim
125 words
An apparatus for assisting in the delivery of a baby during the second stage or expulsion stage of labor comprising a pair of spatulas, a connecting member hingedly connected to and extending between one end of the spatulas to enable the spatulas to be positioned in generally coextensive diverging relation from the connecting member when in use, a traction assembly attached centrally to the connecting member and including handle means connected to the connecting member to enable the connecting member to be pivoted to an angular position to orient one spatula generally longitudinally adjusted in relation to the other spatula to facilitate exit of the fetal head from the pelvic outlet of a mother and to correct asinclitic positions of the fetal head during birth.
Claim 3
Dependent Claim
48 words
The obstetrical spatulas as defined in claim 1 wherein each of said spatulas includes an elongated shank extending from the blade to the connection with the connecting member, said blade being downwardly angled at approximately 35° to the longitudinal axis of the shank to define a perineal curve.
Claim 4
Dependent Claim
64 words
The obstetrical spatulas as defined in claim 1 wherein the connection between the connecting member and one of said spatulas is a detachable hinged connection to enable the spatulas to be inserted into operative association with a fetal head while in separated condition with the separated spatulas being connected to the connecting member after positioning of the blades in relation to the fetal head.
Claim 5
Dependent Claim
50 words
The obstetrical spatulas as defined in claim 1 wherein said traction bar assembly includes a substantially T-shaped structure including a handle connected to the connecting member at the central portion thereof to enable traction force to be exerted on the spatulas by one hand of a person using the spatulas.
Claim 6
Dependent Claim
41 words
The apparatus as defined in claim 1 wherein each of said spatulas includes a blade having a curved configuration conforming with an optimum cephalic curve of the fetal head with the blades including a downwardly curved portion defining a perineal curve.
Claim 7
Dependent Claim
36 words
The apparatus as defined in claim 5 wherein said connecting member is semicircular in configuration, said handle means including a T-shaped handle, said handle having a shank connected with the central portion of the connecting member.
Claim 8
Dependent Claim
22 words
The apparatus as defined in claim 6 wherein said handle is rigid and the shank is rigidly connected to said connecting member.
Claim 9
Dependent Claim
32 words
The apparatus as defined in claim 6 wherein said shank is connected to said connecting member through a spring biased, force indicating means to indicate the traction force exerted on the spatulas.
Claim 10
Dependent Claim
101 words
Obstetrical spatulas comprising a pair of spatulas in the form of elongated members having a curved blade at one end, a connecting member extending between and hingedly connected to the other end of the spatulas, a traction bar assembly connected to the connecting member intermediate the hinge connections between the connecting member and spatulas, each spatula including an elongated shank extending from the blade to the connecting member, said blade on each spatula being curved downwardly from the shank to define a perineal curve with the entire blade being disposed below a horizontal plane along the upper edge of the shank.
Claim 11
Dependent Claim
101 words
Obstetrical spatulas comprising a pair of spatulas in the form of elongated members having a curved blade at one end, a connecting member extending between and hingedly connected to the other end of the spatulas, a traction bar assembly connected to the connecting member intermediate the hinge connections between the connecting member and spatulas, each spatula including an elongated shank extending from the blade to the connecting member, said blade on each spatula being curved downwardly from the shank to define a perineal curve with the entire blade being disposed below a horizontal plane along the upper edge of the shank.
Claim 12
Dependent Claim
45 words
The obstetrical spatula as defined in claim 9 wherein said traction bar includes a rigid handle having a longitudinal axis in alignment with the longitudinal axis of the connecting member to enable traction force to be exerted on the spatulas by using only one hand.
Claim 13
Dependent Claim
80 words
The obstetrical spatulas as defined in claim 10 wherein the spatulas are hingedly connected to the connecting member by hinge connections having a pivot axis perpendicular to the longitudinal axis of the connecting member to enable the spatulas to be moved longitudinally in relation to each other by using one hand to move the handle and connecting member to angular positions about a transverse axis with the blades being supported by the vaginal walls and engaged with the fetal head.
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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) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |