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Publication numberUS1719428 A
Publication typeGrant
Publication dateJul 2, 1929
Filing dateMay 21, 1927
Priority dateMay 21, 1927
Publication numberUS 1719428 A, US 1719428A, US-A-1719428, US1719428 A, US1719428A
InventorsWilliam Friedman
Original AssigneeWilliam Friedman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1719428 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

July 2, 1929. W.'FRIEDMAN 1,719,428 I \SYRINGE Filed My 21, 1927 TiE- T5 llYl/E/Y TOR Zl/ilz'am Friedman Patented July 2, 1929.



errlk r tiei fil MW 21 to minimize the number of parts and enable the same to be inexpensively manufactured and assembled; to enable the dilators to be made up as a single to utilize the res liency of the dilatorsto both return'themto norm alposition as well as. the rotating partby which they are operated; to provide a structure wherein said dilators normally assume a position closely adjacent to the body of the s-iyringe under the influence of theirown resiliency; to obtain a projection of the dilators away from the body portion by an action enablingithe device to be manipulated with one hand 5 to secure simplicity of construction and operation and to obtain other advantages and results as may be brought out in the following description.

Referring to the accompanying drawing in which like numerals of reference indicate similar parts throughout the several views;

Figure 1 is a side elevation of a syringe embodying my invention, showing the dilators in normal position;

Figure 2 is a similar elevation partly in section showing the dilators dilated; and

Figure 3 is an end view looking toward the top of Fig. 2. V

In the specific embodiment of the invention illustrated in said drawing reference numeral 1 indicates an outer body portion which is preferably elongated and tubular and slid ably mounted upon an inner body portion 2 which is likewise tubular and equipped at one end with a bead 3 for receiving and holding a water tube 4 to enable a supply of water to be passed through the said inner body member 2 as is usualin syringes. The other end of the tubular body portion 2 is provided with a fountain head 5 suitably perforated so as to provide for proper spray when the water 1s passed through it. In the construction shown in the drawing, this fountain head 4 is preferably screw-threaded on to the end of said body portion 2. The inner body ortion is preferably longer than the outer b0 y portion and is rotatable thereon and prevented 1927. Serial No. 193,249.

from any sliding in a directionaway from the fountain head by an outstanding shoulder 6 nearthebeadedend of said inner body meins ber, and held against slidin in the other direction by interposition ofdilators between the end of said body portion and. said fountain head 5 which is larger than the inner body member.

ou ted Q th d o ride t-i bo y member adjacent the fountain head. arc/film} rality of dilators 7, said dilators preferably being made of resilient rubber with integral collars or bands 8, 9 at opposite ends oftl e several dilators one of which. bands, as 8, will frictio ially slip onto the uppere id of said outer body member and retain said dilators fixed thereto, and the other band 9 frictionally slip onto the inner body member below the fountain head. The dilators and collars formed integrally as indicated form a sleeve with an outside diameter substantially that of the outer body member so said sleeve forii s a continuation of said body memberi It may be pointed out at this time that one end of this sleeve is fast to the outer end of one body member and the other end of the sleeve is fast on the other body member so any relative rotation of one member with respect to the other will be resisted by the resiliency of the sleeve of which the dilators are a part. The resiliency of the dilators and sleeve is such as to normally position the dilators side by side against the inner body member or water tube. Said sleeve is slit, as at 10, at successive intervals around itself, said slits extend ing diagonally or spirally of the sleeve and constituting the divisions between the dilators 7. Attempt to rotate the outer body member in one direction will merely tighten these dilators against each other and resist the turning of said member, but turning of the said body member in the other direction meets no such resistance and the dilators will bulge outward as their opposite ends approach longitudinal alinement, this position being clearly shown in Figures 2 and 3, and for brevity being called herein the dilating position. When the user releases the outer member, after having rotated it to obtain dilation of the dilators, the resiliency of the dilators causes the said member to turn back to normal position as shown in Fig. 1, with the gilators again close to the inner body mem- The inner body member 2 is perforated below the fountain head within the confines of the fingers, as at 11, preferably at such position as to be substantially opposite the peak of the bulge of the fingers when they are bent outward to their greatest extent. These perforations open through to the water passage in said body member and obtain a spray of water outwardly through the fingers when the same are dilated.

Obviously other detail changes and modifications may bemade in the construction and use'offmy improved syringe without departing from the spirit. and scope of the invention disc'losed,andI do not wish to be understood as. limiting myself to'the exact conable and longitudinally stationary with rea spect to each other, and dilators carried by one'of said'bodymembers and so restricted Ly the other member as to be bent outwardly when the said body members are rotated with respect to each otlierin'one direction.

'2'. A device of the character described comprising inner and outer body meng bers rotatable and longitudinally stationary with respect to each-ot-heijand dilators secured at opposite ends to said bodyimembers so opposite ends of said dilators will be oppositely rotated relatively by a relative opposite rotation of said members for bending said dilators outward upon rotation of said body members in one direction.

3. A device of the character described comprising an inner body member having a shoulder at one end and a fountain head at the other end, an outer body member rotatable on said inner body member and prevented from sliding by said shoulder, and dilators secured at one end adjacent said fountain head and secured at their other ends to said outer member and adapted to be dilated by rotating said members with respect to each other.

4. A device of the character described comprising a pair of rotatable members, diagonally disposed dilators attached at opposite' ends to said members whereby relative rotation of the members in one direction will cause said dilators to bulge outwardly.

5. A device of the character described comprising a pair of rotatable members, and a resilient member attached at its opposite ends to said rotatable members respectively, said resilient member having portions thereof which will bulge by relatively rotating one end of said resilient member with respect to the other.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3065750 *May 3, 1961Nov 27, 1962Mandell William BDilatable sanitary douche
US3108595 *Aug 8, 1960Oct 29, 1963Overment Alfred PRetention catheter
US3312215 *Aug 2, 1963Apr 4, 1967Silber Max NUterocervical cannula
US3397699 *May 5, 1966Aug 20, 1968Gerald C. KohlRetaining catheter having resiliently biased wing flanges
US3495586 *Jul 21, 1966Feb 17, 1970Regenbogen EberhardRectoscope with spreading means
US3766907 *Jul 22, 1971Oct 23, 1973Dow CorningMethod of preparing endometrial samples
US3946741 *Dec 9, 1974Mar 30, 1976Adair Edwin LloydUrethral catheter and body drainage device
US4083369 *Jul 2, 1976Apr 11, 1978Manfred SinnreichSurgical instruments
US4465482 *Dec 28, 1983Aug 14, 1984Gerhard Hug GmbhSuction drainage tube
US4737152 *Jul 2, 1986Apr 12, 1988Becton, Dickinson And CompanyCatheter assembly
US5030210 *Feb 8, 1988Jul 9, 1991Becton, Dickinson And CompanyCatheter valve assembly
US5203773 *Oct 18, 1991Apr 20, 1993United States Surgical CorporationTissue gripping apparatus for use with a cannula or trocar assembly
US5387196 *May 19, 1992Feb 7, 1995United States Surgical CorporationCannula assembly having conductive cannula
US5421832 *May 12, 1994Jun 6, 1995Lefebvre; Jean-MarieFilter-catheter and method of manufacturing same
US5618309 *Nov 10, 1994Apr 8, 1997Green; David T.Cannula assembly having conductive cannula
US5817062 *Jun 27, 1996Oct 6, 1998Heartport, Inc.Trocar
US5857464 *Jun 7, 1995Jan 12, 1999Desai; Jawahar M.Catheter for media injection
US6052612 *Mar 27, 1998Apr 18, 2000Desai; Jawahar M.Catheter for media injection
US6701180Apr 17, 2000Mar 2, 2004Jawahar M. DesaiCatheter for media injection
US6979321Jul 11, 2001Dec 27, 2005Advanced Cardiovascular Systems, Inc.Apparatus for inserting particles into tissue, in particular muscle tissue
US7618431 *Jun 29, 2006Nov 17, 2009Warsaw Orthopedic, Inc.Oval dilator and retractor set and method
US7833197Oct 5, 2006Nov 16, 2010Boston Scientific Scimed, Inc.Catheter incorporating a guidewire exit ramp
US8221357Nov 4, 2010Jul 17, 2012Boston Scientific Scimed, Inc.Catheter incorporating a guidewire exit ramp
US8241250 *Aug 29, 2007Aug 14, 2012Cook Medical Technologies LlcRotationally actuated fixation mechanism
US8551043Apr 23, 2007Oct 8, 2013C. R. Bard, Inc.Feeding device and bolster apparatus and method for making the same
US8556857Jul 10, 2012Oct 15, 2013Boston Scientific Scimed, Inc.Catheter incorporating a guidewire exit ramp
US8636714 *Sep 22, 2003Jan 28, 2014Boston Scientific Scimed, Inc.Microcatheter with sleeved guidewire port
US8715244Jul 7, 2010May 6, 2014C. R. Bard, Inc.Extensible internal bolster for a medical device
US8858533Jun 29, 2005Oct 14, 2014C. R. Bard, Inc.Methods and systems for providing fluid communication with a gastrostomy tube
US9370648 *Feb 27, 2014Jun 21, 2016Mgs Mfg. Group, Inc.Injection molded adjustable shape abscess irrigation device
US9572751May 5, 2014Feb 21, 2017C. R. Bard, Inc.Extensible internal bolster for a medical device
US9655600May 5, 2014May 23, 2017Femasys Inc.Methods and devices for endometrial cell and tissue sampling
US9682224Oct 6, 2014Jun 20, 2017C. R. Bard, Inc.Method and systems for providing fluid communication with a gastrostomy tube
US20030014012 *Jul 11, 2001Jan 16, 2003Geis John SApparatus for inserting particles into tissue
US20040152980 *Jan 23, 2004Aug 5, 2004Desai Jawahar M.Catheter for media injection
US20050043703 *Aug 21, 2003Feb 24, 2005Greg NordgrenSlit valves for catheter tips and methods
US20050065498 *Sep 22, 2003Mar 24, 2005Scimed Life Systems, Inc.Microcatheter with sleeved guidewire port
US20060036233 *Aug 12, 2004Feb 16, 2006Scimed Life Systems, Inc.Catheter incorporating a guidewire exit ramp
US20060247651 *Jun 29, 2006Nov 2, 2006Roehm Thomas E IiiOval dilator and retractor set and method
US20070093785 *Oct 5, 2006Apr 26, 2007Scimed Life Systems, Inc.Catheter incorporating a guidewire exit ramp
US20070255209 *Apr 23, 2007Nov 1, 2007C.R. Bard, Inc.Feeding device and bolster apparatus and method for making the same
US20070276356 *Jun 29, 2005Nov 29, 2007C. R. Bard, Inc.Methods And Systems For Providing Fluid Communication With A Gastrostomy Tube
US20080058730 *Aug 29, 2007Mar 6, 2008Cook IncorporatedRotationally actuated fixation mechanism
US20090048511 *Aug 18, 2008Feb 19, 2009Desai Jawahar MCatheter For Media Injection
US20090112183 *Nov 5, 2008Apr 30, 2009C. R. Bard, Inc.Medical devices and methods of use
US20110009828 *Jul 7, 2010Jan 13, 2011C.R.Bard, Inc.Extensible internal bolster for a medical device
US20110046608 *Nov 4, 2010Feb 24, 2011Boston Scientific Scimed, Inc.Catheter Incorporating a Guidewire Exit Ramp
US20110196341 *Feb 9, 2011Aug 11, 2011C. R. Bard, Inc.Deflation indicator for a medical device bolster
US20140180259 *Feb 27, 2014Jun 26, 2014MSG MFG. Group Inc.Injection Molded Adjustable Shape Abscess Irrigation Device
EP1299144A1 *Jul 11, 2001Apr 9, 2003Bioheart, Inc.Apparatus for inserting particles into tissue
EP1299144A4 *Jul 11, 2001Nov 10, 2004Bioheart IncApparatus for inserting particles into tissue
EP2790589A4 *Dec 14, 2012Jul 29, 2015Femasys IncMethods and devices for cervical cell and tissue sampling
EP2991559A4 *May 5, 2014Jan 18, 2017Femasys IncMethods and devices for endometrial cell and tissue sampling
WO2008027375A2 *Aug 29, 2007Mar 6, 2008Cook IncorporatedRotationally actuated fixation mechanism
WO2008027375A3 *Aug 29, 2007Jul 24, 2008Cook IncRotationally actuated fixation mechanism
WO2014179804A1 *May 5, 2014Nov 6, 2014Femasys Inc.Methods and devices for endometrial cell and tissue sampling
U.S. Classification604/105
International ClassificationA61M3/02, A61M3/00
Cooperative ClassificationA61M3/0291
European ClassificationA61M3/02H6