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Publication numberUS243396 A
Publication typeGrant
Publication dateJun 28, 1881
Filing dateMar 25, 1881
Publication numberUS 243396 A, US 243396A, US-A-243396, US243396 A, US243396A
InventorsEdwaed Peaeee
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Edwaed peaeee
US 243396 A
Images(1)
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Description  (OCR text may contain errors)

] (ModeL) E. PFARRE.

. Catheter.

No. 243,396. Patented June 28,1881.

UNITED STATES PATENT OFFICE.

EDWARD PFARRE, OF BROOKLYN, NEW YORK.

CATHETER.

SPECIFICATION forming part of Letters Patent No. 243,396, dated June 28, 1881.

' Application filed March 25,1881. (Modeh) To all whom it may concern:

Be it known that I, EDWARD PFARRE, of Brooklyn, in the county of Kings and State of New York, have invented an Improvement in Surgical Instruments, of which thefollowin g is a specification.

This improvement relates to the instruments known as vulcanized-rubber catheters, stomach-tubes,&c. These tubes have been made straight with a tapering end, and in Letters Patent No. 191,879, granted J une 12, 187 7, an india-rubbertiibe is described, the same being vulcanized within a glass tube. When the straight vulcanized tube is introduced into a curved passage in the human or animal body it is not adapted to.remain in place without inconvenience or irritation to the parts, because the tube presses more against one part than the other by its tendency to straighten. It has long been the desire of surgeons to have the catheter, stomachtube, or boogie of a shape approximating that of the natural passage into which it is to be introduced, and also to be able to follow the tortuous passages without unnecessary pressure against the walls of the passage in causing the tube to bend at the curvature of the passage.

My invention relates, first, to a flexible tube or bougie having the end tapering and bent in a slightly curved form, whereby the catheter, tube, or bougie can be more easily caused to search out or follow the curved or tortuous passage in the human or animal body. This is eftected by inserting the instrument into the passage, and when its end meets with any obstruction the instrument is revolved more or less, and its tapering curved end searches out and passes into the curved passage with great facility.

The second part of this invention relates to an improvement upon the surgical instrument made according to my aforesaid patent, and relates to curving the glass mold to a shape approximating to that of the passage into which the instrument is to be inserted, and curing in such glass tubular mold the indiarubber catheter, tube, or bougie, so that when the instrument is complete and ready for use its normal shape will approximate to that of the passage into which. it is to be introduced, and hence when it is in the said passage it will remain without inconvenience or any unnecessary irritating effect.

The third feature of my invention consists in the combination, with the surgical tube, of a wire helix within the tube, and around which the india-rubber sets tightly and is vulcanized, so that the rubber and the helix are connected. This wire is either flat or round, and coiled so that the convolutions touch each other. The object of this helix is to stiffen the tube and allow of its being pressed into the passage more easily than heretofore without the elasticity of the tube being materially interfered with. It is preferable for the coils of wire in the helix to come into contact when endwise pressure is applied and form a metallic st-ifi'ening-tube to keep the instrument in shape; while the same is forced into the passage but this helix does not prevent the rubber bending so as to freely follow the passage. This helix is much better than the straight or curved wires that have sometimes been inserted into the bougie, because they are rigid and render the instrument painful to the person.

In the drawing I have shown by a partial section the smooth rubber tube a with the tapering point I), which is bent into a curve for the aforesaid purposes, and within this tube is the helix 0, of fiat or round wire. The instrument has also one or more curves, 0 f, by which the instrument is made to approximate to the shape of the passage in the body into which it is to be inserted. It is to be understood that the glass tube in which the indiarubber is cured is made of the shape required for the finished article.

I claim as my invention- 1. As a. new article, a surgical instrument formed of india-rubber or similar elastic material, havinga smooth surfaceand atapering point, permanently curved in vulcanizing, as and for the purposes set forth.

2. The flexible surgical instrument, made of india-rubber or similar material, and having a smooth surface and tapering point, and containing within it a helix of wire, substantially as and for the purposes set forth.

Signed by me this 23d day of March, A. D. 1881.

EDWARD PFARRE.

Witnesses WILLIAM G. MOTT, GEO. T. PINoKNEv.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2541402 *Jan 13, 1948Feb 13, 1951Curtis W CaineEndobronchial intubating stylet
US2866603 *Jun 6, 1955Dec 30, 1958Honeywell Regulator CoThermostat adapter
US3467101 *Sep 30, 1965Sep 16, 1969Edwards Lab IncBalloon catheter
US3757768 *Apr 7, 1972Sep 11, 1973Medical Evaluation Devices AndManipulable spring guide-catheter and tube for intravenous feeding
US3833940 *Oct 16, 1972Sep 10, 1974W HartenbachBile duct endoprothesis
US4195624 *Jun 9, 1978Apr 1, 1980Douglas Donald DTubular sheath for facilitating the insertion of an endoscope
US4547192 *Apr 11, 1983Oct 15, 1985Superior Plastic Products Corp.Gastroenteric feeding tube
US4581012 *Dec 5, 1984Apr 8, 1986I-Flow CorporationMultilumen catheter set
US4787884 *Sep 1, 1987Nov 29, 1988Medical Engineering CorporationUreteral stent guidewire system
US4790809 *May 14, 1987Dec 13, 1988Medical Engineering CorporationUreteral stent
US4820262 *Dec 12, 1985Apr 11, 1989Medical Engineering CorporationUreteral stent
US5658264 *Nov 10, 1994Aug 19, 1997Target Therapeutics, Inc.High performance spiral-wound catheter
US5702373 *Aug 31, 1995Dec 30, 1997Target Therapeutics, Inc.Composite super-elastic alloy braid reinforced catheter
US5795341 *Jun 7, 1995Aug 18, 1998Target Therapeutics, Inc.High performance spiral-wound catheter
US5853400 *Jun 3, 1997Dec 29, 1998Target Therapeutics, Inc.High performance spiral-wound catheter
US5863366 *Nov 15, 1996Jan 26, 1999Heartport, Inc.Method of manufacture of a cannula for a medical device
US5879499 *Jun 17, 1996Mar 9, 1999Heartport, Inc.Method of manufacture of a multi-lumen catheter
US5891112 *Jun 7, 1995Apr 6, 1999Target Therapeutics, Inc.High performance superelastic alloy braid reinforced catheter
US5891114 *Sep 30, 1997Apr 6, 1999Target Therapeutics, Inc.Soft-tip high performance braided catheter
US5951539 *Dec 19, 1997Sep 14, 1999Target Therpeutics, Inc.Optimized high performance multiple coil spiral-wound vascular catheter
US5971975 *Oct 9, 1996Oct 26, 1999Target Therapeutics, Inc.Guide catheter with enhanced guidewire tracking
US6143013 *Apr 30, 1996Nov 7, 2000Target Therapeutics, Inc.High performance braided catheter
US6152912 *Jun 10, 1997Nov 28, 2000Target Therapeutics, Inc.Optimized high performance spiral-wound vascular catheter
US6159187 *Dec 6, 1996Dec 12, 2000Target Therapeutics, Inc.Reinforced catheter with a formable distal tip
US6217566Oct 2, 1997Apr 17, 2001Target Therapeutics, Inc.Peripheral vascular delivery catheter
US6482171Jan 13, 1997Nov 19, 2002Heartport, Inc.Multi-lumen catheter
US6616651Nov 17, 2000Sep 9, 2003Robert C. StevensIntravascular microcatheter with embedded helical coil reinforcement member and methods and apparatus for making same
US6689120Aug 4, 2000Feb 10, 2004Boston Scientific Scimed, Inc.Reduced profile delivery system
US6824553Aug 25, 2000Nov 30, 2004Target Therapeutics, Inc.High performance braided catheter
US7713215Jan 31, 2008May 11, 2010Shriver Edgar LSteering, piercing, anchoring, distending extravascular guidewire
US7815599Dec 10, 2004Oct 19, 2010Boston Scientific Scimed, Inc.Catheter having an ultra soft tip and methods for making the same
EP0715863A2Nov 10, 1995Jun 12, 1996Target Therapeutics, Inc.Catheter
Classifications
Cooperative ClassificationA61M25/0054