Source: https://patents.google.com/patent/US8534321B2/en
Timestamp: 2018-03-21 03:22:59
Document Index: 494906746

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 2011', 'Application No. 05775471', 'Application No. 2', 'Application No. 2007']

US8534321B2 - Stopcock - Google Patents
US8534321B2
US8534321B2 US13167871 US201113167871A US8534321B2 US 8534321 B2 US8534321 B2 US 8534321B2 US 13167871 US13167871 US 13167871 US 201113167871 A US201113167871 A US 201113167871A US 8534321 B2 US8534321 B2 US 8534321B2
US13167871
US20110308651A1 (en )
This application is a continuation of U.S. patent application Ser. No. 11/574,618, now U.S. Pat. No. 7,984,730, filed Apr. 20, 2007, entitled “STOPCOCK”, which is a National Phase Application of PCT/IL2005/000925, filed Aug. 29, 2005, entitled “STOPCOCK”, published in English on Mar. 9, 2006, which claims priority of U.S. Provisional Patent Application No. 60/607,113, filed Sep. 2, 2004, entitled “CLOSED STOPCOCK” and U.S. Provisional Patent Application No. 60/641,909, filed Jan. 5, 2005, entitled “CLOSED STOPCOCK FOR ARTERIAL MONITORING”, the disclosures of all of which are hereby incorporated by reference.
There is further provided in accordance with yet another preferred embodiment of the present invention a method of providing fluid communication with the circulatory system of a patient including providing a stopcock including a housing element defining at least first, second and third ports, a handle element which is selectably positionable relative to the housing element, at least one fluid passageway communicating between at least two of the at least first, second and third ports, the at least one fluid passageway being selectably defined by at least one of the housing element and the handle element, providing a flow of a first fluid through the stopcock. in communication with the circulatory system of the patient when the handle element and the housing element are in a first mutual position, and providing a flow of a second fluid through the stopcock in communication with the circulatory system of the patient when the handle element and the housing element are in a second mutual position, thereby flushing an internal volume of at least one of the first, second and third ports by the second fluid which does not flow entirely through the port whose internal volume is being flushed.
FIGS. 27, 28A and 28B are sectional illustrations taken along section lines XXVII-XXVII, XXVIIIA-XXVIIIA and XXVIIIB-XXVIIIB in FIG. 2513;
FIGS. 60A, 60B, 60C and 60D are sectional illustrations taken along section lines LXA-LXA, LXB-LAB, LXC-LXC and LXD-LXD in FIGS. 59A, 59B, 59C and 59D respectively; and
Reference is now made to FIG. 1, which is an exploded view illustration of a stopcock, constructed and operative in accordance with a preferred embodiment of the present invention. As seen in FIG. 1, the stopcock comprises a housing element 10 including a main tubular portion 12 and three side ports, designated by reference numerals 14, 16 and 18 respectively. A handle element 20 is arranged to be seated within main tubular portion 12 .of housing element 10. A typical threaded plug 23 is adapted to be connected to side port 16.
Reference is now made to FIG. 11, which is an exploded view illustration of a stopcock constructed and operative in accordance with a preferred embodiment of the present invention. As seen in FIG. 11, the stopcock comprises a housing element 110 including a main tubular portion 112 and three side ports, designated by reference numerals 114, 116 and 118 respectively. A handle. element 120 is arranged to be seated 10, within main tubular portion 112 of housing element 110.
Reference is now made additionally to FIGS. 12 and 13 which are pictorial illustrations of housing element 110 and to FIGS. 14A and 1413 which are sectional illustrations thereof. As seen in FIGS. 11-14B, tubular portion 112 of housing element 110 is generally cylindrical, arranged about an axis 122, and has side ports 114, 116 and 118 extending in different directions therefrom, typically separated by 90 degrees about axis 122. Port 114 is preferably a male port which preferably meets luer standard ISO 594-1, while port 116 incorporates a normally closed swabbable valve which is configured to receive a male luer and port 118 is preferably a female port, which preferably meets luer standard ISO 594-1. Conventional plugs, nuts and covers may be used in association with ports 114 and 118.
Port 116 of housing element 110 includes a valve employing an elastomeric element 123, held in place by a cap 124, which is welded or otherwise fixed to housing element 110. Elastomeric element 123 and cap 124 are commercially available from Halkey-Roberts Corporation of St. Petersburg, Fla., USA and described in. one or more of U.S. Pat. Nos. 6,651,956; 6,089,541 and 6,036,171, the disclosures of which are hereby incorporated by reference. Alternatively, valves and valve elements commercially available from other sources such as Becton-Dickinson, Cardinal, Medegen and Filtertek may be employed.
Reference is now made to FIGS. 19A, 19B, 19C and 19D, which are simplified pictorial illustrations of the stopcock of FIG. 11 in four operative orientations and to FIGS. 20A, 2013, 20C and 20D, which are sectional illustrations of the stopcock of FIGS. 19A, 1913, 19C and 19D, respectively.
Shaft portion 230 is generally symmetrical about a shaft axis 242 and has a slightly conical outer surface 244, typically having an angle α (as seen particularly in FIG. 26A) of 3-4 degrees, which corresponds to the slightly conical configuration of central bore 225 for rotatable sealing engagement therewith. As seen particularly in FIGS. 28A and 28B, shaft. portion 230 is typically formed with mutually sealed top and bottom cylindrical recesses 246 and 248, which are sealingly separated by a divider 250.
Disposed generally between recesses 246 and 248 and sealed therefrom is a partially peripherally-extending recess 252, selectably defining a fluid flow passageway between selectable ones of side ports 214, 216 and 218 depending on the rotational orientation of the handle element 220 relative to the housing element 210. Preferably extending radially and partially bifurcating the recess 252 is a fluid flow guide 254, which directs the flow of liquid between ports 214 and 218 through the passageway defined by recess 252 into the internal volume 227 of port 216 for flushing thereof, when the handle element 220 is suitably positioned. The radially outward facing edge 256 of fluid flow guide 254 is formed with a suitably tapered configuration in order to prevent liquid flow there past when fluid flow guide 254 is not located opposite a port.
Reference is now made to FIGS. 29A, 29B, 29C and 29D, which are simplified pictorial illustrations of the stopcock of FIG. 21 in four operative orientations and to FIGS. 30A, 30B, 30C and 30D, which are sectional illustrations of the stopcock of FIGS. 29A, 2913, 29C and 29D, respectively.
Disposed generally between recesses 346 and 348 and sealed therefrom is a partially peripherally-extending recess 352. Preferably extending radially and partially bifurcating the recess 352 is a fluid flow guide 354, which directs the flow of liquid between ports 314 and 318 through the passageway defined by recess 352 into the internal volume 328 of port 316 for flushing thereof, when the handle element 320 is suitably positioned. The thickness of fluid flow guide 354 is substantially less than the circumferential extent of side recess 327. The radially outward facing edge 356 of fluid flow guide 354 is formed with a suitably tapered configuration in order to prevent liquid flow there past when fluid flow guide 354 is not located opposite a port.
It is a particular feature of the present invention that the provision of fluid flow guide 354 generally overcomes problems of the presence of residual liquids remaining in the internal volume 328 of port 316 as well as in internal volume 366 of the elastomeric element 323. This is important in various therapeutic situations. For example when blood is drawn from the patient through port 316, there remains residual blood in the internal volume 328 of port 316 and the internal volume 366 of the elastomeric element 323. This blood, if left in internal volumes 328 and 366 for a period of time, can clot and thus become dangerous if delivered to the patient. In addition, the coagulated blood could occlude the liquid passageway extending through port 316, Various infections could possibly arise as a result of the retained blood.
Shaft portion 430 is generally symmetrical about a shaft axis 442 and has a slightly conical outer surface 444, typically having an angle α (as seen particularly in
FIG. 46A) of 3-4 degrees, which corresponds to the slightly conical configuration of central bore 425 for rotatable sealing engagement therewith. As seen particularly in FIGS. 48A and 48B, shaft portion 430 is typically formed with mutually sealed top and bottom cylindrical recesses 446 and 448, which are sealingly separated by a divider 450.
Disposed generally between recesses 446 and 448 and sealed therefrom is a side-to-side extending bore 452 and a side bore 453 extending perpendicularly with respect thereto and communicating therewith. Bore 452 and side bore 453 are bifurcated by a fluid flow guide 454 in such a manner that fluid communication between opposite ends of bore 452 takes place via side bore 453. Bores 452 and 453 and fluid flow guide 454 define a fluid flow passageway between selectable ones of side ports 414, 416 and 418 depending on the rotational orientation of the handle element 420 relative to the housing element 410. Fluid flow guide 454 directs the flow of liquid between ports 414 and 418 through bores 452 and 453 into the internal volume 427 of port 416 for flushing thereof, when the handle element 420 is suitably positioned. The radially outward facing edge 456 of fluid flow guide 454 is formed with a suitably tapered configuration in order to prevent liquid flow there past when fluid flow guide 454 is not located opposite a port as shown in FIG. 45A, alternatively it may have many other shapes.
Reference is now made to FIG. 51, which is an exploded view illustration of a stopcock constructed. and operative in accordance with a preferred embodiment of the present invention. As seen in FIG. 51, the stopcock comprises a housing element 510 including a main tubular portion 512 and three side ports, designated by reference numerals 514, 516 and 518 respectively. A handle element 520 is arranged to be seated within main tubular portion 512 of housing element 510.
Shaft portion 530 is generally symmetrical about a shaft axis 542 and has a slightly conical outer surface 544, typically having an angle α (as seen particularly in FIG. 56A) of 3-4 degrees, which corresponds to the slightly conical configuration of central bore 525 for rotatable sealing engagement therewith. As seen particularly in FIGS. 58A and 58B, shaft portion 530 is typically fowled with mutually sealed top and bottom cylindrical recesses 546 and 548, which are sealingly separated by a divider 550.
Disposed generally between recesses 546 and 548 and sealed therefrom is a partially peripherally-extending recess 552, selectably defining a fluid flow passageway between selectable ones of side ports 514, 516 and 518 depending on the rotational orientation of the handle element 520 relative to the housing element 510. Preferably extending radially and partially bifurcating the recess 552 is a fluid flow guide 554, which directs the flow of liquid between ports 514 and 518 through the passageway defined by recess 552 into the internal volume 528 of port 516 for flushing thereof, when the handle element 520 is suitably positioned. The radially outward facing edge 556 of fluid flow guide 554 is formed with a suitably tapered configuration in order to prevent liquid flow there past when fluid flow guide 554 is not located opposite a port as shown in FIG. 55A, alternatively it may have many other shapes.
Reference is now made to FIGS. 59A, 59B, 59C and 59D, which are simplified pictorial illustrations of the stopcock of FIG. 51 in four operative orientations and to FIGS. 60A, 6013, 60C and 60D, which are sectional illustrations of the stopcock of FIGS. 59A, 59B, 59C and 59D, respectively.
FIG. 61 C shows the stopcock in an operative orientation such as that shown, for example in FIGS. 19C and 20C, FIGS. 29C and 30C, FIGS. 39C and 40C, FIGS. 49C and 50C and FIGS. 59C and 60C, which is typically employed for supplying a liquid to the patient from the arterial set. Liquid flows through the stopcock and flushes the internal volume of the swabbable valve and of the port in which it is located, flushing residual liquid therefrom to the patient.
a first fluid flow guide extending radially to an inner facing wall of said central bore, said first fluid flow guide associated with said at least one fluid flow passageway, and
a second fluid flow guide extending radially and partially bifurcating one of said at least one of the first, second and third ports, said second fluid flow guide associated with said at least one fluid flow passageway.
US13167871 2004-09-03 2011-06-24 Stopcock Active 2026-02-10 US8534321B2 (en)
US57461807 true 2007-04-20 2007-04-20
US11574618 Continuation
PCT/IL2005/000925 Continuation WO2006025054A3 (en) 2004-09-03 2005-08-29 Closed stopcock
US11574618 Continuation US7984730B2 (en) 2004-09-03 2005-08-29 Stopcock
US57461807 Continuation 2007-04-20 2007-04-20
US13937053 Division US9016316B2 (en) 2004-09-03 2013-07-08 Stopcock
US20110308651A1 true US20110308651A1 (en) 2011-12-22
US8534321B2 true US8534321B2 (en) 2013-09-17
US2868176A (en) 1954-07-14 1959-01-13 Robert H Bennett Rotary plug valve
An English Translation of an Office Action dated Feb. 5. 2013 which issued during the prosecution of Japanese Patent Application No. 2011-202066.
An Office Action dated May 8, 2012, which issued during the prosecution of European Patent Application No. 05775471.5.
An Office Action dated Sep. 13, 2012, which issued during the prosecution of Canadian Patent Application No. 2,578,989.
An Office Action together with its English Translation dated May 17, 2011, which issued during the prosecution of Japanese Patent Application No. 2007-529136.