Source: http://www.google.com/patents/US5297776?dq=patent:6161142
Timestamp: 2015-05-07 01:29:22
Document Index: 780091781

Matched Legal Cases: ['art 1', 'art 3', 'art 4', 'art 1', 'art 5', 'art 5', 'art 5', 'art 5']

Patent US5297776 - Coupling device for the connection of tube lines used for medical purposes - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsIn a coupling device for the connection of tubes for medical purposes, a first coupling-part (1) within which is mounted an axially adjustable hollow pin (2) provided with radial inlet openings (19) for the attachment of an initial tube piece, which pin (2) when in an operating position runs through...http://www.google.com/patents/US5297776?utm_source=gb-gplus-sharePatent US5297776 - Coupling device for the connection of tube lines used for medical purposesAdvanced Patent SearchPublication numberUS5297776 APublication typeGrantApplication numberUS 07/930,437PCT numberPCT/AT1992/000007Publication dateMar 29, 1994Filing dateJan 22, 1992Priority dateJan 22, 1991Fee statusLapsedAlso published asDE59200012D1, EP0496724A1, EP0496724B1, WO1992012760A1Publication number07930437, 930437, PCT/1992/7, PCT/AT/1992/000007, PCT/AT/1992/00007, PCT/AT/92/000007, PCT/AT/92/00007, PCT/AT1992/000007, PCT/AT1992/00007, PCT/AT1992000007, PCT/AT199200007, PCT/AT92/000007, PCT/AT92/00007, PCT/AT92000007, PCT/AT9200007, US 5297776 A, US 5297776A, US-A-5297776, US5297776 A, US5297776AInventorsFranz A. DieringerOriginal AssigneeDieringer Franz AExport CitationBiBTeX, EndNote, RefManPatent Citations (9), Referenced by (5), Classifications (11), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetCoupling device for the connection of tube lines used for medical purposes
US 5297776 AAbstract
In a coupling device for the connection of tubes for medical purposes, a first coupling-part (1) within which is mounted an axially adjustable hollow pin (2) provided with radial inlet openings (19) for the attachment of an initial tube piece, which pin (2) when in an operating position runs through an absorbent insert (9) impregnated with disinfectant and opens by way of its radial inlet openings (19) into a second coupling part (5) connected in detachable fashion to the first coupling part (1), while the second coupling part (5) exhibits at least an attachment point (7) and a vent (8), the second coupling part (5) exhibits a longitudinally adjustable sealing component (11) for a centrally positioned vent (8), while the hollow pin (2) exhibits an extension (29) serving the adjustment of the sealing component (11).
1. Coupling device for the connection of tubes for medical purposes, with a first coupling part for the attachment of an initial tube piece, said first coupling part having mounted therein an axially adjustable hollow pin provided with inlet openings, which hollow pin when in an operating position runs through an absorbent insert impregnated with disinfectant and opens by way of its inlet openings into a second coupling part connected in detachable fashion to the first coupling part, while the second coupling part includes at least an attachment opening and a vent; wherein the second coupling part includes a longitudinally adjustable sealing component for the vent, said vent being centrally positioned; wherein the hollow pin includes a stop face for providing straight alignment of the sealing component; and wherein the sealing component includes a conical extension which interacts with the centrally positioned vent, said vent having a hollow-conical portion.
The invention relates to a coupling device for connecting tube lines used in medicine, with an initial coupling part within which is mounted an axially adjustable hollow pin exhibiting outlet openings and serving to attach an initial coupling part which in operating position runs through a sponge that can be impregnated with disinfectant and which opens by way of its outlet openings into a second coupling part connected in detachable form to the first coupling part, while the second coupling part exhibits at least two attachment openings.
The goal of the invention is to create a device of the type described above in which contamination of the infusion solution by disinfectants, ambient air, or the like is avoided with certainty and a vent or additional attachment opening can be tightly sealed with a low mechanical load on the hollow pin. To solve this problem the invention basically consists in the fact that the second coupling part exhibits a sealing component adjustable in the longitudinal direction for a centrally positioned connecting hole and the hollow pin exhibits a stop face for the adjustable sealing component. The fact that the second coupling part displays a longitudinally adjustable sealing component for a centrally placed attachment opening assures that in the axial adjustment of the hollow pin the centrally positioned attachment opening is securely sealed by the adjustable sealing component and the hollow pin is not exposed to any unduly high mechanical loads that might arise in adjusting and turning the pin in the centrally positioned attachment hole. Because the hollow pin exhibits a contact surface or stop face for the adjustment of the sealing component, the sealing component can be moved axially merely by positioning the hollow pin on its side turned away from the centrally positioned attachment hole, while such adjustment again exposes the hollow pin to extremely low mechanical loads.
FIG. 1 shows an initial coupling part 1 with a pin 2 that slides in the axial direction, the pin 2 consisting of an outer part 3 and an inner part 4. Attached to the first coupling part 1 is a second coupling part 5 in which an attachment point 7 is provided, eccentric to the axis 6 of the pin or of the sliding path of the pin, for a tube line continuing on to infusion equipment. A vent 8 is provided on the second coupling part 5 central to and within the axis 6. When the pin 2 is moved axially, the pin 2 is first moved through an initial insert 9 of absorbent material, which is permanently impregnated with disinfectant. A second, axially adjacent insert 10, which can be replaceable if so desired, is contained in the second coupling part to supplement the disinfectant and assure a high degree of disinfection. Provided in the second coupling part 5 are a sealing component 11 for the vent 8, which sealing component 11 moves in the longitudinal direction of the coupling part 5, and an absorbent wiping insert 12, which wipes off and absorbs any matter sticking to the outside of the pin 2.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3409015 *Apr 1, 1965Nov 5, 1968Davol IncBalloon catheter having an integral self-sealing inflation valveUS3896853 *Jul 23, 1974Jul 29, 1975Pro Medical Eng AbCoupling means for use with blood sampling apparatusUS4710168 *May 13, 1986Dec 1, 1987Egon SchwabNon-return valve for medical purposes in particular for balloon cathetersUS5034000 *Mar 28, 1989Jul 23, 1991Dexide, IncorporatedMedical evacuation and irrigation deviceUS5049128 *Feb 6, 1990Sep 17, 1991Duquette Irene AValved infusion portAT386523B * Title not availableEP0116986A1 *Jan 30, 1984Aug 29, 1984Steritech B.V.Connector assembly for sterile connection of two internally sterile containers or tubingsEP0198407A2 *Apr 9, 1986Oct 22, 1986Fresenius AGConnector for peritoneal dialysisWO1990007953A1 *Jan 18, 1990Jul 26, 1990Franz A DieringerCoupling for joining flexible tubing for medical purposes* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS5533983 *Dec 6, 1994Jul 9, 1996Haining; Michael L.Valved medical connectorUS5785693 *Mar 28, 1997Jul 28, 1998Haining; Michael L.Medical connectorUS7597686Jan 29, 2004Oct 6, 2009Smiths Group PlcValves and suction catheter assembliesEP1452192A1 *Jan 22, 2004Sep 1, 2004Smiths Group PLCValves and suction catheter assembliesEP1754501A1Aug 15, 2006Feb 21, 2007Klaus Pfleiderervalve for catheter* Cited by examinerClassifications U.S. Classification251/149.1, 604/249International ClassificationA61M39/26, A61M5/50, A61M39/02, A61M39/00, A61MCooperative ClassificationA61M39/26, A61M5/50, A61M2039/266European ClassificationA61M39/26Legal EventsDateCodeEventDescriptionSep 15, 1998FPExpired due to failure to pay maintenance feeEffective date: 19980329Mar 29, 1998LAPSLapse for failure to pay maintenance feesRotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services