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Publication numberUS2230226 A
Publication typeGrant
Publication dateFeb 4, 1941
Filing dateMar 14, 1938
Priority dateMar 14, 1938
Publication numberUS 2230226 A, US 2230226A, US-A-2230226, US2230226 A, US2230226A
InventorsJohn M Auzin
Original AssigneeDavol Rubber Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Catheter and its manufacture
US 2230226 A
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Description  (OCR text may contain errors)

Feb. 4, 1941. M uzm 2,230,226

CATHETER AND ITS MANUFACTURE Filed latch 14, 1938 Patented Feb. 4, 1941 UNITED STATES PATENT OFFICE- CATHETER AND ITS MANUFACTURE John M. Auzin, Warwick, R. I., assignor to Davol Rubber Company, a corporation of Rhode Island Application March 14, 1938, Serial No. 195,755

2 Claims. (01. 128-349) My present invention relates to the manufac- 5 separated by longitudinal grooves 23, and a ture of catheters, and has particular reference tip portion 24. When the parts are dipped, the to the manufacture of pezzer head catheters. latex forms as a coating over the former, suc- It is the princip l object f my invention o cessive clippings preferably with intermediate dips 5 provide a catheter construction in which the in coagulent solution building up the catheter to 5 head parts fold together when extended by means the desired thickness. After this thickness is of the usual metal form, so as to facilitate inreached, the catheter is air dried, and the opensertion and removal of the catheter. ings l6 are then cut on the catheter while it is It is a further object of my invention to prostill on the former I1, these openings being cut vide a catheter construction in which the head over the recess ends. The former rod I8 is then 10 parts move together when pressed longitudinalwithdrawn, and the former head 20 may then 1y so as to reduce the over all width of the be withdrawn through one of the openings l6, catheter. the latter being sufiiciently extendible to freely Another object of my invention is to provide a permit the head removal. If desired one opencatheter having grooves intergrally formed in the ing for withdrawal may be cut, the other open- 15 button head so as to guide the head parts in ings being cut after Withdrawal. collapsing when subjected to the longitudinal In practice, a small number of dips, dependpressure of an inserting form. ing on the size of the catheter, are made on the With the above and other objects and advanassembled former; then the coated head is sevtageous features in view, my invention consists ered from the rest of the former, and the head 20 of a novel arrangement of parts more fully discoating removed; then the head is replaced on closed in the detailed description following in the former and the dips are continued, whereby conjunction with the accompanying drawing, a thick catheter tube and a thin pezzer head is and more specifically defined in the claims apobtained. It is sometimes desirable to addipended thereto. tionally dip the top only of the head, to increase 25 In the drawing, the top thickness while keeping the head body Fig. l is a perspective view, partly broken thin, whereby the head body is very elastic andaway, showing the novel catheter; the head top is strengthened to withstand the Fig. 2 is a longitudinal central section thereelongating pressure. of, partly broken away, on the line 2-2 of Fig. 1. The novel catheter is thus an integral pezzer 30 Fig. 3 is a plan view of the novel former for head catheter, formed in one piece, without forming the catheter; seams, and having the pezzer head provided Fig. 4 is an end view of the pezzer head; with indentations or recesses l5, whereby the in- Fig.5 is an end View of the former; sertion of a rod 25, see Fig. 6, and forward pres- Fig. 6 i a perspective view partly broken away, sure on this rod so as to extend the pezzer head, 35

showing the catheter in extended position; and results in a folding of t pe e d s is clea Fig. 7 is a view similar to Fig. 6, sectioned 0n 1y shown in Fig. 6, with the recess portions the line 1-1 of Fig. 6. folding inwardly to permit the entire pezzer Referring to the drawing, the novel button head to assume a relatively narrow outside dihead catheter I!) has a pezzer head II and a ametel' With 0 Parts edges extending 01117, 40 rear, slightly enlarged funnel end l2, the catheter whereby ready insertion a d emoval of the being tubular as shown in Fig. 2, and the head catheter without pain to the patient, results. having a tip 13, which is preferably thickened, The u of forms m n separable pieces s and which may be re-enforced with a textile indisclosed p a, P s the manufacture Of sert or the like, if desired, the catheter also ubber ar i l h v in rm i enlarged P01"- 45 having spaced lobes or sections I4 separated by {710118 of much greater d ter tha the end grooves or indentations I5, which preferably ter- Portions, whereby the inventive Concept y be minate in openings 16 ,1; th i upper d applied to the manufacture of other articles made The catheters are preferably formed of t of rubber or other resilient material, to eliminate by dipping n a, former I! hi h i t of a seams and other disadvantageous features 010- 50 rod portion I8 with a slightly enlarged funnel teined wh using p le m l s. end l9, and a separate h ad portion 2a hi h While I have described a specific construchas a central recess for detachable mounting tional embodiment of y invention, a p fic on a pin 2| extending from th he d nd of method of manufacturing the novel catheter, the rod I8. The head 20 has lobes 22, see Fig, and aspecific former for manufacturing the novel 55 catheter, it is obvious that the invention disclosed supra may be applied to the manufacture of other rubber articles, and that changes in the shape, size, and design of the parts may be made to suit the requirements for difierent rubber articles, and particularly catheters, without departing from the spirit and the scope of the invention as defined in the appended claims.

I claim:

1. An integral one piece seamless catheter having a pezzer head, said head having longitudinal lobes with depressions therebetween, said depressions folding inwardly to permit the pezzer nation of one depression.

ameter when subjected to elongating pressure, 7

and an opening therethrough adjacent one depression.

2. An integral one piece seamless catheter having a pezzer head, said head having longitudinal lobes with depressions therebetween, said depressions folding inwardly to permit the pezzer head to assume a relatively narrow outside diameter when subjected to elongating pressure, and an opening therethrough forming a termi- JOHN M. AUZIN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3419010 *Jan 17, 1966Dec 31, 1968Cordis CorpCatheter
US3915171 *Jun 6, 1974Oct 28, 1975Dennis William ShermetaGastrostomy tube
US4369790 *Mar 5, 1981Jan 25, 1983Mccarthy John MCatheter
US4705041 *Sep 19, 1986Nov 10, 1987Kim Il GDilator for Sphincter of Oddi
US4863438 *Nov 29, 1985Sep 5, 1989Applied Medical Technology, Inc.Low profile gastrostomy device
US5098379 *Mar 1, 1990Mar 24, 1992Rochester Medical CorporationCatheter having lubricated outer sleeve and methods for making and using same
US5137671 *Jan 10, 1990Aug 11, 1992Rochester Medical CorporationMethods of making balloon catheters
US5234425 *Nov 24, 1992Aug 10, 1993Thomas J. FogartyVariable diameter sheath method and apparatus for use in body passages
US5261896 *Dec 13, 1991Nov 16, 1993Rochester Medical CorporationSustained release bactericidal cannula
US5269770 *Mar 13, 1992Dec 14, 1993Rochester Medical CorporationMicrocidal agent releasing catheter with balloon
US5336203 *May 28, 1993Aug 9, 1994Abbott LaboratoriesLow profile gastrostomy device with dome
US5370899 *Mar 13, 1992Dec 6, 1994Conway; Anthony J.Outer sleeves that are lubricated so they can slide independently
US5411491 *May 28, 1993May 2, 1995Abbott LaboratoriesLow profile gastrostomy device with one-way cross-slit valve
US5482740 *Nov 8, 1993Jan 9, 1996Rochester Medical CorporationCured silicone rubber containing particles of nitrofuran compound; urinary catheters
US5501669 *Mar 30, 1995Mar 26, 1996Rochester Medical CorporationUrinary catheter with reservoir shroud
US5593718 *Aug 2, 1994Jan 14, 1997Rochester Medical CorporationMethod of making catheter
US5599321 *Jun 7, 1995Feb 4, 1997Rochester Medical CorporationCoating outer surface of tube with mixture of uncured silicone rubber, silicone fluid and and particles of antibacterial agent, then curing, for urinary catheters
US5670111 *Aug 2, 1994Sep 23, 1997Rochester Medical CorporationCoating with bond-preventing agent; forming cavities that may be fluid or gel filled
US5971954 *Jan 29, 1997Oct 26, 1999Rochester Medical CorporationMethod of making catheter
US6383434Jun 30, 1999May 7, 2002Rochester Medical CorporationMethod of shaping structures with an overcoat layer including female urinary catheter
US6461346 *Dec 9, 1994Oct 8, 2002Applied Medical Resources Corp.Sealing occlusion catheter and method of using same
US6626888Sep 26, 1995Sep 30, 2003Rochester Medical CorporationMethod of shaping structures with an overcoat layer including female urinary catheter
US8177741 *Apr 12, 2006May 15, 2012Cook Medical Technologies LlcCatheter with superelastic retention device
US8551043Apr 23, 2007Oct 8, 2013C. R. Bard, Inc.Feeding device and bolster apparatus and method for making the same
US8715244Jul 7, 2010May 6, 2014C. R. Bard, Inc.Extensible internal bolster for a medical device
US20060229553 *Apr 12, 2006Oct 12, 2006Vance Products Incorporated, D/B/A Cook Urological IncorporatedCatheter with superelastic retention device
Classifications
U.S. Classification604/104, 264/163, 264/305
International ClassificationA61M25/00
Cooperative ClassificationA61M2025/006, A61M25/0068, A61M25/008, A61M25/0069
European ClassificationA61M25/00T30, A61M25/00T10