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Publication numberUS761235 A
Publication typeGrant
Publication dateMay 31, 1904
Filing dateAug 7, 1902
Priority dateAug 7, 1902
Publication numberUS 761235 A, US 761235A, US-A-761235, US761235 A, US761235A
InventorsIrwin Floyd Kepler
Original AssigneeGoodrich Co B F
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Catheter.
US 761235 A
Images(1)
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Description  (OCR text may contain errors)

No. 761,235. PATENTED MAY 31, 1904. I. F. KEPLBR.

CATHETER.

APPLIOATION FILED AUG-.1, 1902.-

N0 MODEL.

Witueooea d 'gwpewboz 1 2 I v Q v .UNITED STATES Patented May 31, 1904.

PATENT OFFICE.

IRWIN FLOYD KEBIJER, AKRON, OHIO, ASSIGNOR TO THE B. F. GOOD- RICH COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

CATHETER.

SPECIFICATION forming part of Letters Patent No. 761,235, dated May 31, 1904.

-- Application filed August '7, 1902.

To (LZZ whom, it may concern:

Be it known that I, IRWIN FLoYD KEPLER, a citizen of the United States, and a resident of the city of Akron, county of Summit, and State of Ohio, have invented certain new and useful Improvements in Catheters, of which the following is a specification.

My improvement particularly relates to catheters of rubber. In these catheters the end below the eye is made either hollow or solid. The tip of the hollow-end catheter is not only liable to retain infectious matter, but also lacks that certain degree of rigidity necessary to secure proper penetration. The tip of the solid-end catheter, while avoiding the. danger of carrying infection, has the decided disadvantage of being as much too hard as the hollow end is too soft, and consequently is a source of irritation to the patient.

To make a catheter combining the advantages of both structures and free from their disadvantages is the object of my invention. I effect this by confining air in a cell formed in the otherwise solid end of the catheter, so as to form a pneumatic cushion.

In the accompanying drawings, illustrating my improvement, Figure 1 is a view of a flexible catheter, shown in section in Fig. 2.

, Similar reference-letters indicate corresponding parts in each View.

A is the tube of the catheter, and B is its Serial No. 118,789. (No model.)

rounded distal end. O is the eye. D is the inclosed air-cell between the extremity B and E, which is a dam or partition sloping from the distal extremity of the eye to the back inner wall of the tube and integral therewith, confining air in the cell D between the distal end B and the said dam E. The extremity of the instrument so formed is exceedingly soft, yet has the rigidity required for penetration, and the further advantage of constantly and positively tending to retain its shape combining with a catheter the positive action of adilator. This construction affords the desirable qualities of suppleness, flexibility, elasticity, resiliency, and compressibility in higher degree than is attainable in any of the prior forms of instrument.

It is obvious that my improvement is not limited to catheters only, but is equally applicable to other forms of tubular surgical exploring instruments of rubber in which a firm yet soft and resilient part is desirable.

Having thus described my invention, what I desire to claim is An elastic catheter having an inclosed aircell in its distal end.

RICHARD GRIFFITH, HERMAN CARL MUKER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3460540 *Apr 18, 1966Aug 12, 1969Davol IncPlastic catheter with rubber balloon
US5601537 *Jun 5, 1995Feb 11, 1997Frassica; James J.Catheter system
US5871475 *Jan 11, 1996Feb 16, 1999Frassica; James J.Catheter system
US5989230 *Feb 10, 1997Nov 23, 1999Essex Technology, Inc.Rotate to advance catheterization system
US6379334 *Nov 23, 1999Apr 30, 2002Essex Technology, Inc.Rotate advance catheterization system
US7048717Sep 27, 2000May 23, 2006Essex Technology, Inc.Rotate-to-advance catheterization system
US7780650May 19, 2006Aug 24, 2010Spirus Medical, Inc.Rotate-to-advance catheterization system
US7806888Jul 26, 2005Oct 5, 2010Spirus Medical, Inc.Rotate to advance catheterization system
US7909799May 4, 2005Mar 22, 2011Spirus Medical, Inc.Rotate-to-advance catheterization system
US8235942May 18, 2009Aug 7, 2012Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8317678Jan 10, 2011Nov 27, 2012Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8343040May 18, 2009Jan 1, 2013Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8366674Aug 24, 2010Feb 5, 2013Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8377041Feb 28, 2006Feb 19, 2013Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8414477May 18, 2009Apr 9, 2013Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8435229May 2, 2011May 7, 2013Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
US8574220May 3, 2011Nov 5, 2013Olympus Endo Technology America Inc.Rotate-to-advance catheterization system
Classifications
Cooperative ClassificationA61M25/0054