Patents by Inventor Kevin Woehr

Kevin Woehr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10799683
    Abstract: Method, system and device involving a needle device with a needle safety element with improved stable structure. A frame can surround the needle safety element to provide added stiffening of the needle safety element. The frame can include stays extending laterally of the needle safety element. The needle safety element with the frame can be slidably located on a needle and in a catheter hub in a ready to use position and be removable from the catheter hub in a protective position.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: October 13, 2020
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Hermann Riesenberger, Meinrad Lugan
  • Publication number: 20200188634
    Abstract: Needle devices having a component that provides the function of fixing a valve in a standard diameter sized catheter hub, the valve and/or the component provide or provides a proximally directed axial force for returning the valve opener from a distal position within the catheter hub to a proximal position within the catheter hub when a male Luer is disconnected from the catheter hub. Various components can be located inside a single hub body catheter hub that can restrict fluid flow, allow actuation to permit fluid flow, prevent needlestick injuries, and combinations thereof.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 18, 2020
    Inventors: Kevin Woehr, Chee Mun Phang
  • Patent number: 10682500
    Abstract: Catheter assemblies are generally discussed herein with particular discussions extended to catheter assemblies having a tip protector, a valve, a valve opener, and optionally a needle wiper. The valve opener is disposed inside a catheter hub and is configured to be pushed by an IV set luer connector to open a valve following successful catheterization to pass fluids or other solutions through the catheter. A tip protector is incorporated to block the needle tip and prevent the same from accidental needle stick. A wiper is optionally included to wipe blood deposits from the needle when the same is retracted from the catheter.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: June 16, 2020
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Michael Zerbes
  • Patent number: 10661058
    Abstract: Safety intravenous catheters (IVCs) are disclosed herein having a catheter hub with a catheter tube, a needle with a needle hub, and a needle guard. The needle guard is configured to be positioned at least partially within an interior space of the catheter hub and is retained thereto by mechanical engagement between the two. Following removal of the needle from the catheter hub, the needle guard is configured to disengage from the catheter hub and attach over a tip of the needle to shield the needle tip from inadvertent needlesticks. The needle guard having an angled end section configured with a length and a width to retain the needle tip within a tip holding space behind the angled end section.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 26, 2020
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10543343
    Abstract: Aspects of the present disclosure include needle devices in which a needle has a notch or slot. A flashback indicator is provided at least in part in the needle lumen at the notch, adjacent the notch, or partially inside and partially outside of the notch. In use, blood flow through the needle lumen is indicated at the flashback indicator. When used with a catheter tube, the flashback indicator can be viewed through the catheter tube. The needle with the notch and flashback indicator may be used with a variety of needle applications, including as catheter assemblies, indwelling assemblies, and most, if not all, over-the-needle type devices.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 28, 2020
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Yi Ying Chin, Hui Kuun Teoh
  • Publication number: 20190366053
    Abstract: Safety intravenous catheters (IVCs) are disclosed herein having a catheter hub with a catheter tube, a needle with a needle hub, and a needle guard. The needle guard is configured to be positioned at least partially within an interior space of the catheter hub and is retained thereto by mechanical engagement between the two. Following removal of the needle from the catheter hub, the needle guard is configured to disengage from the catheter hub and attach over a tip of the needle to shield the needle tip from inadvertent needlesticks. The needle guard having an angled end section configured with a length and a width to retain the needle tip within a tip holding space behind the angled end section.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Applicant: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10463839
    Abstract: The present disclosure relates to a catheter device comprising a catheter hub in which a valve member is disposed, a needle fixed in a needle hub, the needle extending through the valve member in the catheter hub in a ready position, and a tubular receptacle in which the needle hub is displaceably guided and biased by a spring in a proximal direction relative to the receptacle, wherein the needle hub is releasably held in the ready position in the receptacle against the force of the spring by frictional force between needle circumference and catheter or catheter hub, which frictional force is reduced on retraction of the needle through the catheter hub such that the force of the spring prevails.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: November 5, 2019
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10456572
    Abstract: A catheter assembly including a catheter hub being connectable to a device for the infusion or withdrawal of fluids; a hollow extension tube connected at its distal end to the catheter hub, the extension tube connectable at its proximal end to a device for infusing fluid into the chamber within the catheter hub; a valve assembly disposed within the chamber of the catheter hub having a first valve member and a second valve member preventing the flow of fluid through the chamber to or from the proximal end of the catheter hub. A needle guard assembly is also provided.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: October 29, 2019
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10376677
    Abstract: Needle assemblies are generally discussed herein with particular discussions extended to needle assemblies having a tip protector with a plurality of wall surfaces for preventing contact with the needle tip from a side. Aspects of the tip protectors discussed herein include a first protector body having an arm for blocking a needle tip surrounded by a second protector body having a plurality of wall surfaces.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: August 13, 2019
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10293143
    Abstract: Method, system and device involving a needle device with a needle safety element with improved stable structure. A frame can surround the needle safety element to provide added stiffening of the needle safety element. The frame can include stays extending laterally of the needle safety element. The needle safety element with the frame can be slidably located on a needle and in a catheter hub in a ready to use position and be removable from the catheter hub in a protective position.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 21, 2019
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Hermann Riesenberger, Meinrad Lugan
  • Publication number: 20190076626
    Abstract: Method, system and device involving a needle device with a needle safety element with improved stable structure. A frame can surround the needle safety element to provide added stiffening of the needle safety element. The frame can include stays extending laterally of the needle safety element. The needle safety element with the frame can be slidably located on a needle and in a catheter hub in a ready to use position and be removable from the catheter hub in a protective position.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Applicant: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Hermann Riesenberger, Meinrad Lugan
  • Publication number: 20190060617
    Abstract: Needle assemblies are generally discussed herein with particular discussions extended to needle assemblies having a tip protector with a plurality of wall surfaces for preventing contact with the needle tip from a side. Aspects of the tip protectors discussed herein include a first protector body having an arm for blocking a needle tip surrounded by a second protector body having a plurality of wall surfaces.
    Type: Application
    Filed: October 29, 2018
    Publication date: February 28, 2019
    Applicant: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10166370
    Abstract: Embodiments of a catheter insertion device are discussed comprising: an approximately hollow cylindrical catheter sleeve, at whose distal end a catheter is attached; a needle sleeve with a hollow needle, which is attached thereto and which, when ready for use, extends through the catheter sleeve and the catheter, and; a needle protective element that is arranged inside the catheter sleeve while being able to move on the needle. Said needle protective element has an engaging section that engages with an engaging device, which is formed in the vicinity of the needle tip, when the hollow needle is withdrawn from the catheter sleeve. A check valve is placed inside the catheter sleeve between the catheter and the needle protective element. The hollow needle, when ready for use, extends through said check valve, and the check valve automatically closes once the needle is withdrawn.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: January 1, 2019
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Kenneth C. Raines
  • Publication number: 20180311490
    Abstract: A catheter assembly including a catheter hub being connectable to a device for the infusion or withdrawal of fluids; a hollow extension tube connected at its distal end to the catheter hub, the extension tube connectable at its proximal end to a device for infusing fluid into the chamber within the catheter hub; a valve assembly disposed within the chamber of the catheter hub having a first valve member and a second valve member preventing the flow of fluid through the chamber to or from the proximal end of the catheter hub. A needle guard assembly is also provided.
    Type: Application
    Filed: July 6, 2018
    Publication date: November 1, 2018
    Applicant: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Publication number: 20180289931
    Abstract: Embodiments of a catheter insertion device are discussed comprising: an approximately hollow cylindrical catheter sleeve, at whose distal end a catheter is attached; a needle sleeve with a hollow needle, which is attached thereto and which, when ready for use, extends through the catheter sleeve and the catheter, and; a needle protective element that is arranged inside the catheter sleeve while being able to move on the needle. Said needle protective element has an engaging section that engages with an engaging device, which is formed in the vicinity of the needle tip, when the hollow needle is withdrawn from the catheter sleeve. A check valve is placed inside the catheter sleeve between the catheter and the needle protective element. The hollow needle, when ready for use, extends through said check valve, and the check valve automatically closes once the needle is withdrawn.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Applicant: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Kenneth C. Raines
  • Patent number: 10080883
    Abstract: A catheter assembly including a catheter hub being connectable to a device for the infusion or withdrawal of fluids; a hollow extension tube connected at its distal end to the catheter hub, the extension tube connectable at its proximal end to a device for infusing fluid into the chamber within the catheter hub; a valve assembly disposed within the chamber of the catheter hub having a first valve member and a second valve member preventing the flow of fluid through the chamber to or from the proximal end of the catheter hub. A needle guard assembly is also provided.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: September 25, 2018
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 10080869
    Abstract: Embodiments of a catheter insertion device are discussed comprising: an approximately hollow cylindrical catheter sleeve, at whose distal end a catheter is attached; a needle sleeve with a hollow needle, which is attached thereto and which, when ready for use, extends through the catheter sleeve and the catheter, and; a needle protective element that is arranged inside the catheter sleeve while being able to move on the needle. Said needle protective element has an engaging section that engages with an engaging device, which is formed in the vicinity of the needle tip, when the hollow needle is withdrawn from the catheter sleeve. A check valve is placed inside the catheter sleeve between the catheter and the needle protective element. The hollow needle, when ready for use, extends through said check valve, and the check valve automatically closes once the needle is withdrawn.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: September 25, 2018
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Kenneth C. Raines
  • Publication number: 20180214673
    Abstract: Needle assemblies and related methods having a needle hub with a needle, a catheter tube with a catheter hub and having the needle extending through the catheter tube in a ready to use position. A valve is positioned in an interior cavity of the catheter hub, the valve having sections that can deflect in a distal direction and sections that can deflect in a proximal direction to open a fluid flow path through the valve. The valve can be deflected by a multi-piece valve opener.
    Type: Application
    Filed: August 18, 2016
    Publication date: August 2, 2018
    Inventors: Jarryd Keng Gene Ng, Boon Ping Neoh, Chee Mun Phang, Hang Khiang Chng, Kevin Woehr
  • Publication number: 20180214682
    Abstract: Needle assemblies and related methods in which a valve opener is used to push into a valve on the valve to open the valve. The needle assemblies each includes a needle hub with a needle, a catheter tube with a catheter hub and the valve and valve opener positioned in the interior cavity of the catheter hub. The valve can have a valve skirt and a nose section of the valve opener can locate therein. One or more reliefs can be provided with the valve opener so that an elbow or diagonal section on a needle guard can project from a holding space within the valve opener through the relief.
    Type: Application
    Filed: August 18, 2016
    Publication date: August 2, 2018
    Inventors: Kevin Woehr, Jarryd Keng Gene Ng, Boon Ping Neoh
  • Publication number: 20180200454
    Abstract: A safety needle is disclosed having a puncture needle with a needle lumen and a ground tip; a holding device that, during use, bears on the skin of a patient and holds the puncture needle; and a safety mechanism with a protection element that has a first, opened state and a second, closed state. When the holding device is taken away from the skin and/or when the holding device is moved with respect to the defined position, the safety mechanism automatically moves the protection element from a first position, in which the tip of the needle is exposed, to a second position, in which the tip of the needle is covered as the protection element at the same time transfers automatically from the first, opened state to the second, closed state.
    Type: Application
    Filed: July 18, 2016
    Publication date: July 19, 2018
    Inventors: HANS HAINDL, KEVIN WOEHR