US4959067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual surgical separator structure and method
Assignee: BERKE JOSEPH J MD PHD
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Filing: 1987-11-05
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Granted: 1990-09-25
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Expires: 2007-11-05
Abstract
Abstract Surgical separator structure comprising an elongated shaft having a handle at one end and a stem with controlled flexilibity at the other end and a tissue separating tip secured to the other end of the flexible stem. The shaft may have a separate handle part and stem part secured together centrally of the shaft. The tip is preferably spherical and may be constructed to snap on the end of the stem and may also be retained by adhesive or the like. Alternatively, the other end of the stem may be molded into the tip to secure the tip to the stem. In the method of manufacture of the surgical separator, the handle and stem may be separately produced and secured together by a threaded connection while the tip may be snapped over the end of the stem and/or secured thereto with adhesive. Alternatively, the stem may be molded of "ABS" within a recess in the "TEFLON" tip to lock the tip on the stem. The handle is preferably color coded to provide a visual indication of the flexibility of the shaft. The tip is preferably colored a color contrasting to the color of the stem and tissue such as bright yellow and is preferably luminescent.
Inventors
- 👤 George H. Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B90/00; A61B2017/00535; A61B2017/00544; A61B17/32; A61B2017/320044
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
54 words
Surgical separator structure comprising an elongated shaft constructed of a non-helical shaped member extending straight in the direction of elongation for most of its length including a handle at one end, a transversely directionally universally, easily flexed other end, and a tip at the other end for displacing or separating tissue on contact therewith.
Claim 2
Dependent Claim
54 words
Surgical separator structure comprising an elongated shaft constructed of a non-helical shaped member extending straight in the direction of elongation for most of its length including a handle at one end, a transversely directionally universally, easily flexed other end, and a tip at the other end for displacing or separating tissue on contact therewith.
Claim 3
Dependent Claim
67 words
Structure as set forth in claim 1 wherein the tip is a separate member in the shape of a spheroid having a dimension transverse to the longitudinal axis of the shaft substantially larger than the transverse dimension of the adjacent portion of the other end of the shaft and the shaft and tip further include means for snapping the tip onto the other end of the shaft.
Claim 4
Dependent Claim
81 words
Structure as set forth in claim 2 wherein the means for snapping the tip on the other end of the shaft comprises projections on the other end of the shaft extending radially therefrom, a recess in the tip for receiving the other end of the shaft, and radially extending recesses in the tip within the recess in the tip complimentary to the projections on the other end of the tip for receiving the projections on the other end of the tip.
Claim 5
Dependent Claim
32 words
Structure as set forth in claim 3 and further including adhesive between the other end of the shaft and the tip for securing the tip to the other end of the shaft.
Claim 6
Dependent Claim
97 words
Structure as set forth in claim 1 wherein the shaft includes a substantially rigid handle portion and a stem portion and means operable between the handle portion and one end of the stem portion for securing the handle portion and the stem portion together and wherein the tip is secured to the other end of the stem portion of the shaft and is in the shape of a spheroid having a dimension transverse to the longitudinal axis of the shaft substantially larger than the transverse dimension of the adjacent portion of the other end of the shaft.
Claim 7
Dependent Claim
21 words
Structure as set forth in claim 5 wherein the entire stem portion of the shaft is transversely, directionally, universally easily flexed.
Claim 8
Dependent Claim
20 words
Structure as set forth in claim 6 wherein the stem portion of the shaft is straight over its entire length.
Claim 9
Dependent Claim
23 words
Structure as set forth in claim 6 wherein the stem portion of the shaft has a double bend at the other end thereof.
Claim 10
Dependent Claim
47 words
Structure as set forth in claim 6 wherein the stem portion of the shaft has a single bend at the other end thereof so as to extend obliquely to the axis of extent of most of the length of the stem portion at the other end thereof.
Claim 11
Dependent Claim
30 words
Structure as set forth in claim 6 wherein the stem portion of the shaft is terminated in a short portion extending at right angles thereto at the other end thereof.
Claim 12
Dependent Claim
32 words
Structure as set forth in claim 5 wherein the handle portion of the shaft is color coded to provide a visual indication of the flexibility of the stem portion of the shaft.
Claim 13
Dependent Claim
41 words
Structure as set forth in claim 5 wherein the tip is colored, a color contrasting to the color of the stem and the red or whitish color of tissue for facilitating location of the tip and/or depth assessment of the tip.
Claim 14
Dependent Claim
12 words
Structure as set forth in claim 5 wherein the tip is luminescent.
Claim 15
Dependent Claim
21 words
Structure as set forth in claim 5 wherein the tip is constructed of "TEFLON" and the stem is constructed of "ABS".
Claim 16
Dependent Claim
14 words
Structure as set forth in claim 1 wherein the non-helical shaped member is solid.
Claim 17
Dependent Claim
220 words
Surgical separator structure comprising a generally cylindrical, relatively rigid handle portion, one end of which is reduced in diameter and is threaded to receive one end of a slender and relatively flexible stem portion, a stem portion which is molded of "ABS" and has a progressively smaller diameter from the one end to the other thereof so as to be transversely directionally universally, relatively easily flexed, an axially extending threaded recess in the one end of the flexible stem portion, projections on the other end of the flexible stem portion extending radially therefrom for securing a tip to the other end of the stem portion, a spheroidal tip molded of Teflon or equivalent low friction material on the other end of the flexible stem portion including a recess therein for receiving the other end of the stem portion and radially extending recesses in the tip within the recess in the tip complementary to the projections on the other end of the stem portion for receiving the projections with the tip in assembly on the other end of the flexible stem portion whereby the tip may be snapped on to the stem portion and an adhesive between the tip and other end of the flexible stem portion for securing the tip in place on the other end of the stem portion.
Claim 18
Dependent Claim
220 words
Surgical separator structure comprising a generally cylindrical, relatively rigid handle portion, one end of which is reduced in diameter and is threaded to receive one end of a slender and relatively flexible stem portion, a stem portion which is molded of "ABS" and has a progressively smaller diameter from the one end to the other thereof so as to be transversely directionally universally, relatively easily flexed, an axially extending threaded recess in the one end of the flexible stem portion, projections on the other end of the flexible stem portion extending radially therefrom for securing a tip to the other end of the stem portion, a spheroidal tip molded of Teflon or equivalent low friction material on the other end of the flexible stem portion including a recess therein for receiving the other end of the stem portion and radially extending recesses in the tip within the recess in the tip complementary to the projections on the other end of the stem portion for receiving the projections with the tip in assembly on the other end of the flexible stem portion whereby the tip may be snapped on to the stem portion and an adhesive between the tip and other end of the flexible stem portion for securing the tip in place on the other end of the stem portion.
Claim 19
Dependent Claim
221 words
Surgical separator structure comprising an elongated shaft including a substantially rigid handle portion at one end extending for substantially half the length of the shaft, one end of which is threaded, and a stem portion extending longitudinally for approximately half the length of the shaft having a recess in one end which is threaded complementary to the threaded end of the handle, whereby the stem portion and the handle portion may be secured together with the one end of the handle extending into the recess in the one end of the stem, said stem being slightly tapered from a larger diameter at the one end to a smaller diameter at the other end and being solid and straight over most of its length and being transversely directionally universally, easily flexible, and a spherical ball secured to the other end of the stem portion having a dimension transverse to the longitudinal axis of the shaft substantially larger than the transverse dimension of the adjacent portion of the other end of the shaft, whereby in use with the surgical separator structure held by the handle living tissue may be separated on engagement of the spherical ball with the tissue with a predetermined force depending on the displacement of the ball from the longitudinal axis of the shaft on flexure of the stem portion.
Claim 20
Dependent Claim
221 words
Surgical separator structure comprising an elongated shaft including a substantially rigid handle portion at one end extending for substantially half the length of the shaft, one end of which is threaded, and a stem portion extending longitudinally for approximately half the length of the shaft having a recess in one end which is threaded complementary to the threaded end of the handle, whereby the stem portion and the handle portion may be secured together with the one end of the handle extending into the recess in the one end of the stem, said stem being slightly tapered from a larger diameter at the one end to a smaller diameter at the other end and being solid and straight over most of its length and being transversely directionally universally, easily flexible, and a spherical ball secured to the other end of the stem portion having a dimension transverse to the longitudinal axis of the shaft substantially larger than the transverse dimension of the adjacent portion of the other end of the shaft, whereby in use with the surgical separator structure held by the handle living tissue may be separated on engagement of the spherical ball with the tissue with a predetermined force depending on the displacement of the ball from the longitudinal axis of the shaft on flexure of the stem portion.
Claim 21
Dependent Claim
81 words
Structure as set forth in claim 17 wherein the other end of the stem portion adjacent the shaft is one of straight, has a double bend at the other end thereof, has a single bend at the other end thereof so as to extend obliquely to the axis of extent of most of the length of the stem portion at the other end thereof, and is terminated in a short portion extending at right angles thereto at the other end thereof.
Claim 22
Dependent Claim
84 words
Structure as set forth in claim 18 wherein the handle portion of the shaft is color coded to provide a visual indication of the flexibility of the stem portion of the shaft, the tip is colored in a color contrasting to the color of the stem and the red or whitish color of tissue for facilitating location of the tip and or depth of the tip and is luminescent, and wherein the tip is constructed of TEFLON and the stem is constructed of ABS.
References Cited (Backward Citations)
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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) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |