AU621660B2 - Creation of Inventions and Patents with Artificial Intelligence

AU621660B2 – Flexible cable construction
– Google Patents

AU621660B2 – Flexible cable construction
– Google Patents
Flexible cable construction

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Publication number
AU621660B2

AU621660B2
AU41420/89A
AU4142089A
AU621660B2
AU 621660 B2
AU621660 B2
AU 621660B2
AU 41420/89 A
AU41420/89 A
AU 41420/89A
AU 4142089 A
AU4142089 A
AU 4142089A
AU 621660 B2
AU621660 B2
AU 621660B2
Authority
AU
Australia
Prior art keywords
coil
braid
flexible cable
stainless steel
cable construction
Prior art date
1988-09-13
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Ceased

Application number
AU41420/89A
Other versions

AU4142089A
(en

Inventor
Rodney W. Bosley Jr.
Edward D. Pingleton
Paul G. Thomson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Cook Urological Inc

Original Assignee
Vance Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1988-09-13
Filing date
1989-09-13
Publication date
1992-03-19

1989-09-13
Application filed by Vance Products Inc
filed
Critical
Vance Products Inc

1990-03-22
Publication of AU4142089A
publication
Critical
patent/AU4142089A/en

1992-03-19
Application granted
granted
Critical

1992-03-19
Publication of AU621660B2
publication
Critical
patent/AU621660B2/en

2009-09-13
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

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Classifications

A—HUMAN NECESSITIES

A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE

A61B—DIAGNOSIS; SURGERY; IDENTIFICATION

A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor

A61B1/00064—Constructional details of the endoscope body

A61B1/0011—Manufacturing of endoscope parts

A—HUMAN NECESSITIES

A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE

A61B—DIAGNOSIS; SURGERY; IDENTIFICATION

A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor

A61B1/005—Flexible endoscopes

A61B1/0051—Flexible endoscopes with controlled bending of insertion part

A61B1/0057—Constructional details of force transmission elements, e.g. control wires

Description

REPRINT OF RECEIPT S010127 5845/4 1 1
I
r: :i ;s _C7 Y -i Le FORM 10 SPRUSON FERGUSON COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 COMPLETE SPECIFICATION Lj 49
(ORIGINAL)
FOR OFFICE USE: Class Int. Class Complete Specification Lodged: Accepted: Published: Priority: Related Art: t Name of Applicant: Address of Applicant: Vance Products, Incorporated 1100 West Morgan Street Spencer Indiana 47460 UNITED STATES OF AMERICA
S
Address for Service: Spruson Ferguson, Patent Attorneys, Level 33 St Martins Tower, 31 Market Street, Sydney, New South Wales, 2000, Aust:alia p 0*4 040So Complete Specification for the invention entitled: Flexible Cable Construction The following statement is a full description of this invention, including the best method of performing it known to me/us ~I I No Leplnon DECLARED AT Spencer, Indiana, United States of America No Corporate Seal this No palrati this ^r day of October 19 89 Signature o Declarant To: The Coiimissioner of Patents. Frederick D. Roemer, Vice President 0-0772b FLEXIBLE CABLE CONSTRUCTION Background of the Invention This invention relates to and is particularly concerned with a unique flexible cable construction for use in medical endoscopic surgical accessory devices or instruments.
The use of wire guides within the flexible shafts of endoscopic/surgical accessories or instruments is well known.
One typical and preferred construction for such wire guides has been a continuous stainless steel wire coil 12 (FIG. which has an open cylindrical lumen (not shown).
Stainless steel wire coils have sufficient flexibility for use as wire guides within the shafts of various endoscopic/surgical accessories or instruments. However, even though constructed from rigid stainless steel wire, such coils lack adequate stability to resist undesirable expansions and compressions. As a consequence, safety wires have been inserted along the full length of the wire guide’s lumen, and have then been secured to both ends of the wire guide by soldering, or the like. When in place, the safety wire significantly limits any expansion or compression of the wire guide when in use. Elongation, in fact, is limited to nearly zero, relative to the propensity of the stainless steel wire coil to elongate in use without the presence of a safety wire.
Safety wires have been constructed with various cross-sectional shapes, such as round, flat, or triangular, with a flat-wire design being preferred in the art.
Placing a safety wire within the lumen of continuous wire guides to limit elongation and compression has an undesirable 2 >1I j
F,
disadvantage. The safety wire takes up so much lumenal space that it greatly limits the ability of the wire guide lumen to accept other wires or other assemblies through the compromised lumen. On the other hand, securing the safety wire to the exterior of the coil wire guide, either at each end only, or by tack soldering the safety wire to the wire guide at increments along the entire length of the wire guide, produces a wire guide with insufficient flexibility to function as desired in endoscopes/surgical accessory devices or instruments.
The invention herein disclosed overcomes the disadvantage of utilizing either interior or exterior attached safety wires to limit the compression and elongation of continuous coil wire guides by providing a novel exterior constraint that substantially limits the compression and elongation of continuous coil wire guides while preserving the flexibility in the combination that is required.
IC
Summary of the Invention One embodiment of the present invention is a flexible cable construction for use in endoscopic/surgical accessory devices or instruments, comprising a continuous coil surrounded by a cylindrically woven braid that has been drawn down snuggly upon and along the entire length of the coil by longitudinal tension and permanently secured to the coil at least at its termini.
Another embodiment of the present invention is a method of producing a flexible cable construction for use in endoscopic/surgical accessory devices or instruments, which comprises providing a continuous coil, placing the coil within a cylindrically woven braid, applying longitudinal tension to the woven braid to draw it down snuggly upon and along the entire length of the coil, and then securing the braid to the coil at least at the coil’s termini.
It is an object of the present invention to provide a novel flexible cable construction for wire guides used in endoscopic/surgical accessory devices or instruments.
It is a further object of the invention to provide a novel exterior constraint for a coil wire guide to substantially limit the compression and elongation of the wire guide while maintaining the flexibility required.
Related objects and advantages of Applicants’ invention will be evident from the following descriptions.
i Brief Description of the Drawings FIG. 1 is a side elevational view of a continuous stainless steel wire coil 12, having an open cylindrical lumen.
FIG. 2 is a side elevational view of a cylindrically woven stainless steel wire braid 14, having an open cylindrical lumen.
FIG. 3 is a side elevational view of the coil 12 of FIG. 1 within the wire braid 14 of FIG. 2, which has been drawn down snuggly along the entire length of the coil 12 by longitudinal tension upon the braid 14 in the general direction of the arrows.
FIG. 4 is a side elevational view of a preferred embodiment of the flexible cable construction 10 of the present invention.
4I Description of the Preferred Embodiment For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language .1 will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
Referring now to the drawings, there is shown in FIG. 4 a preferred embodiment of the flexible cable construction 10 of ,7 the present invention. This preferred embodiment is composed of a very flexible, continuous, cylindrical, stainless steel wire coil 12 (FIG. having an outside diameter of about 0.026 inches and an open cylindrical lumen (not shown) of a smaller inside diameter, which coil 12 is typically used as a wire guide for endoscopic/surgical accessory devices or instruments. Surrounding the exterior of coil 12 is a commerically available cylindrical woven stainless steel wire braid 14 (FIG. having an initial outside diameter of about 0.085 inches and an inside diameter of about 0.074 inches.
Wire braid 14 also has an open cylindrical lumen (not shown).
In this preferred embodiment, the wire braid 14 is slipped over stainless steel coil 12 (FIG. and is then drawn down uniformly and snuggly along the entire length of coil 12 by applying longitudinal tension upon the braid beyond the termini 16 and 18 of coil 12 and in the general direction of the arrows in FIG. 3, until wire braid 14 is fitted snuggly around the coil 12 from one end 16 to the other 18.
FI-J:
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The longitudinally tensioned braid 14 (FIG. 3) is then secured to coil 12 at the coil’s termini 16 and 18 by conventionally soldering techniques. Alternatively, braid 14 could be secured to coil 12 by welding, or by an adhesive, although soldering and welding are preferred when metal coils and braids are used. Any excess braid 14 beyond the coil’s termini 16 and 18 is then cut away.
In this preferred embodiment, the outside diameter of the coil 12 with snuggly fit braid 14 (FIG. 4) is about 0.035 inches.
When drawn down and secured to the coil 12 as described, braid 14 functions somewhat analogous to a “Chinese handcuff” or corset/girdle as it uniformly encases the inner continuous coil 12 and uniformly distributes any and all internally and externally applied stresses upon the coil 12 in an omni-directional manner.
Quite unexpectedly, Applicants discovered that the resulting flexible cable construction 10 (FIG. 4) demonstrates the following significant and substantial attributes over wire coils 12 equipped with safety wires; zero to and insignificant amount of elongation of the inner coil wire 12 or flexible cable construction 10 under normal tensile stress loads; zero to an insignificant amount of compression of the inner coil wire 12 or flexible cable construction 10 under normal compression stress loads; an insignificant compromise in flexibility over that of the wire coil 12 alone along the full length of the flexible cable construction and less of a compromise in flexibility than that experienced with the use of safety wires secured within the wire guide lumen; a uniform strengthening evidenced by an absence of
I
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I
*1
I
8~ n 1* any non-uniform segments that tend to kink or otherwise perform unpredictably, or non-uniformly; and uniformly omni-directional in that the cable construction 10 does not “kick” to one side or the other, but bends uniformly in all directions with constant flexibility and response.
Stainless steel has been the preferred material in testing done to date for both the coil 12 and the woven braid 14, forming a totally stainless steel flexible cable construction However, it is to be understood that all engineering polymers plastics, po-lycarbonates, polyethylenes, polysufones and the like); ceramic materials quartz, soda glass, fiberglass composites and the like)) and other metals or metal alloys aluminum, mild steel, brass and the like) and composite alloys of metals, polymers and ceramics capable of being coiled and braided would be suitable materials to utilize in constructing the flexible cable construction of the disclosed invention.
In testing done to date, the functional lengths of flexible cable construction 10 of the present invention have ranged from centimeters to 250 centimeters, with a preferred range of lengths between 30 centimeters and 125 centimeters. Also in testing done to date, the functional outside diameters of the flexible cable construction 10 of the present invention has ranged between 0.006 inches up to 0.395 inches, with a preferred range of outside diameters being between 0.026 inches to 0.066 inches,. Within these functional limits the dimensions of the wire coil 12 and braid 14 may be varied provided the braid 14 may be drawn down in the manner disclosed over the outside of the coil.
7 -1 i~ i YI 1 ii i~ri While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiment has been shown and described and that all changes and modifications that come within the spirit of the invention are desired to be protected.
I
i 8 ,ii L

Claims (5)

3. The flexible cable construction of claim 2 whjerein said coil is a stainless steel continuous coil wire guide, said woven braid is a cylindrically woven stainless steel wire braid, The flexible cable construction of claim 1 wherein the outside diameter of said flexible cable construlction is a bout 0.006 inches to 0.395 inches.

6. The flexible cable construction of claim 1 wherein tile length of said cable is about 5 to 250 centimeters, 4, 9 1 JII- p

7. A method of producing a flexible cable construction for use in endoscopic/surgical accessory devices or instruments, which comprises providing a continuous coil, placing said coil within a cylindrically woven braid, applying longitudinal tension to said woven braid to draw it down snuggly upon and along the entire length of said coil, and then securing said braid to said coil at least at the coil’s termini.

8. The method of claim 1 wherein said coil is a stainless steel wire coil,

9. The method of claim 2 wherein said coil is a stainless steel continuous coil wire guide. The method of claim 1 wherein said woven braid is a cylindrically woven stainless steel wire braid. DATED this THIRTEENTH day of SEPTEMBER 1989 Vance Products, Incorporated Patent Attorneys for the Applicant SPRUSON FERGUSON

AU41420/89A
1988-09-13
1989-09-13
Flexible cable construction

Ceased

AU621660B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

US24389888A

1988-09-13
1988-09-13

US243898

1988-09-13

Publications (2)

Publication Number
Publication Date

AU4142089A

AU4142089A
(en)

1990-03-22

AU621660B2
true

AU621660B2
(en)

1992-03-19

Family
ID=22920589
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU41420/89A
Ceased

AU621660B2
(en)

1988-09-13
1989-09-13
Flexible cable construction

Country Status (4)

Country
Link

EP
(1)

EP0359549A1
(en)

JP
(1)

JPH02121649A
(en)

AU
(1)

AU621660B2
(en)

DK
(1)

DK452189A
(en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US5284128A
(en)

1992-01-24
1994-02-08
Applied Medical Resources Corporation
Surgical manipulator

US5251640A
(en)

1992-03-31
1993-10-12
Cook, Incorporated
Composite wire guide shaft

US5827201A
(en)

1996-07-26
1998-10-27
Target Therapeutics, Inc.
Micro-braided guidewire

US20040199052A1
(en)

2003-04-01
2004-10-07
Scimed Life Systems, Inc.
Endoscopic imaging system

Citations (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3467101A
(en)

1965-09-30
1969-09-16

Edwards Lab Inc

Balloon catheter

US3670721A
(en)

1970-02-05
1972-06-20

Olympus Optical Co

Endoscope

EP0098100A2
(en)

1982-06-24
1984-01-11

Olympus Optical Co., Ltd.

Flexible tube for an endoscope

Family Cites Families (4)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3855897A
(en)

1969-11-12
1974-12-24
N Takahashi
Method of protecting a bundle of flexible optical fibers

JPS5480290U
(en)

1977-11-18
1979-06-07

JPS5819220A
(en)

1981-07-28
1983-02-04
富士写真光機株式会社
Production of flexible part of endoscope

JPH0444529Y2
(en)

1985-11-07
1992-10-20

1989

1989-09-13
EP
EP89309301A
patent/EP0359549A1/en
not_active
Withdrawn

1989-09-13
AU
AU41420/89A
patent/AU621660B2/en
not_active
Ceased

1989-09-13
JP
JP1238323A
patent/JPH02121649A/en
active
Granted

1989-09-13
DK
DK452189A
patent/DK452189A/en
not_active
Application Discontinuation

Patent Citations (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3467101A
(en)

1965-09-30
1969-09-16
Edwards Lab Inc
Balloon catheter

US3670721A
(en)

1970-02-05
1972-06-20
Olympus Optical Co
Endoscope

EP0098100A2
(en)

1982-06-24
1984-01-11
Olympus Optical Co., Ltd.
Flexible tube for an endoscope

Also Published As

Publication number
Publication date

DK452189D0
(en)

1989-09-13

JPH057023B2
(en)

1993-01-27

AU4142089A
(en)

1990-03-22

JPH02121649A
(en)

1990-05-09

EP0359549A1
(en)

1990-03-21

DK452189A
(en)

1990-03-14

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