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).

  • Publication number: 20140276434
    Abstract: Catheter assemblies are described having a catheter hub with a catheter tube and a needle hub with a needle projecting through the catheter tube. The catheter hub has a valve or a septum for stopping or slowing down the flow of fluid in or out of the catheter hub when the valve or septum is closed. The valve has features formed thereon to facilitate venting, opening, closing, or combinations thereof.
    Type: Application
    Filed: August 28, 2013
    Publication date: September 18, 2014
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Kevin Woehr, Edwin L. Burnard
  • Publication number: 20140276433
    Abstract: Catheter assemblies are described having a catheter hub with a catheter tube and a needle hub with a needle projecting through the catheter tube. The catheter hub has at least two seals with at least one being a temporary seal that ends or terminates upon movement of a needle and/or a guard. Different needle guards are provided that can be seated differently within the catheter hub to seal against the elastic seal.
    Type: Application
    Filed: August 26, 2013
    Publication date: September 18, 2014
    Inventor: Kevin Woehr
  • Publication number: 20140257202
    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: May 23, 2014
    Publication date: September 11, 2014
    Applicant: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 8827965
    Abstract: A safety IV catheter includes a unitary, resilient needle guard received in a catheter hub. The needle guard includes a proximal arm or wall that includes an opening through which a needle passes for axial movement. When the needle is retracted from the catheter, it releases the force that had previously prevented movement of the needle guard within the catheter hub. This in turn causes the needle guard to snap into a position in which it is clamped onto the needle shaft and in which its distal wall blocks access to the needle tip. In this condition, the spring needle guard and needle can be removed from the catheter hub. A slot or crimp may be formed in the needle shaft that engages with the needle guard after the protected needle and needle guard are removed from the catheter hub, thereby to prevent removal of the protected needle from the needle guard.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: September 9, 2014
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Manfred Orth, Mark Wynkoop, Matthew Kohler
  • Publication number: 20140249488
    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: Application
    Filed: February 28, 2014
    Publication date: September 4, 2014
    Applicant: B. BRAUN MELSUNGEN AG
    Inventor: Kevin Woehr
  • Patent number: 8801663
    Abstract: A protective device for an injection or infusion needle is provided comprising a needle hub at the proximal end of the needle, on whose shaft a protective member for the needle tip is displaceable, the protective member having an engaging section which engages with the needle shaft to prevent the protective member from being displaced beyond the needle tip, wherein the protective member is surrounded by a tube whose diameter is locally reduced or deformed such that the protective member is confined in the tube.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: August 12, 2014
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Publication number: 20140221939
    Abstract: A safety IV catheter includes a unitary, resilient needle guard received in a catheter hub. The needle guard includes a proximal arm or wall that includes an opening through which a needle passes for axial movement. When the needle is retracted from the catheter, it releases the force that had previously prevented movement of the needle guard within the catheter hub. This in turn causes the needle guard to snap into a position in which it is clamped onto the needle shaft and in which its distal wall blocks access to the needle tip. In this condition, the spring needle guard and needle can be removed from the catheter hub. A slot or crimp may be formed in the needle shaft that engages with the needle guard after the protected needle and needle guard are removed from the catheter hub, thereby to prevent removal of the protected needle from the needle guard.
    Type: Application
    Filed: April 9, 2014
    Publication date: August 7, 2014
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Kevin Woehr, Manfred Orth, Mark Wynkoop, Matthew Kohler
  • Patent number: 8784387
    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 15, 2013
    Date of Patent: July 22, 2014
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Patent number: 8758296
    Abstract: Syringes are disclosed herein incorporating a variety of safety mechanisms for protecting the users from accidental needle stick. In certain embodiments, the syringes incorporate retractable carriages that can be retracted into the syringe barrels by engaging with the plungers. The carriages are configured to receive different needle hubs having any number of needle sizes. In certain other embodiments, the carriages are spring loaded so that as the plungers disengage the carriages from the syringe barrels, the springs automatically retract the needles into the barrels. Still in certain other embodiments, needle hubs with spring loaded needles are used with the syringes. The needles are retracted into the barrels when the plungers activate certain mechanisms incorporated into the hubs to thereby release the needles.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: June 24, 2014
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Juergen Fuchs
  • Patent number: 8728030
    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: July 14, 2010
    Date of Patent: May 20, 2014
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Publication number: 20140135701
    Abstract: A safety IV catheter includes a unitary, resilient needle guard received in a catheter hub. The needle guard includes a proximal arm or wall that includes an opening through which a needle passes for axial movement. When the needle is retracted from the catheter, it releases the force that had previously prevented movement of the needle guard within the catheter hub. This in turn causes the needle guard to snap into a position in which it is clamped onto the needle shaft and in which its distal wall blocks access to the needle tip. In this condition, the spring needle guard and needle can be removed from the catheter hub. A slot or crimp may be formed in the needle shaft that engages with the needle guard after the protected needle and needle guard are removed from the catheter hub, thereby to prevent removal of the protected needle from the needle guard.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Kevin Woehr, Manfred Orth, Mark Wynkoop, Matthew Kohler
  • Publication number: 20140135702
    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: January 22, 2014
    Publication date: May 15, 2014
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Kevin Woehr, Kenneth C. Raines
  • Patent number: 8715231
    Abstract: A hinged cap device for use with a syringe includes a base defining an interior cavity for mounting onto a tip and a cap connected to the base by a living hinge. The cap is moveable from a ready position to an open position to expose a needle, and from the open position to a secured position to prevent relative rotation between the cap and the base. A first latching mechanism is on the cap for engaging the needle, the first latching mechanism locatable on a first side of the needle in the ready position and locatable on a second side of the needle in the secured position. The needle is disengageable from the first latching mechanism in the ready position, and the needle is not disengageable from the first latching mechanism in the secured position.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: May 6, 2014
    Assignee: B. Braun Melsungen AG
    Inventor: Kevin Woehr
  • Publication number: 20140052065
    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: Application
    Filed: October 24, 2013
    Publication date: February 20, 2014
    Applicant: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Michael Zerbes
  • Patent number: 8647313
    Abstract: A safety IV catheter includes a unitary, resilient needle guard received in a catheter hub. The needle guard includes a proximal arm or wall that includes an opening through which a needle passes for axial movement. When the needle is retracted from the catheter, it releases the force that had previously prevented movement of the needle guard within the catheter hub. This in turn causes the needle guard to snap into a position in which it is clamped onto the needle shaft and in which its distal wall blocks access to the needle tip. In this condition, the spring needle guard and needle can be removed from the catheter hub. A slot or crimp may be formed in the needle shaft that engages with the needle guard after the protected needle and needle guard are removed from the catheter hub, thereby to prevent removal of the protected needle from the needle guard.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 11, 2014
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Manfred Orth, Mark Wynkoop, Matthew Kohler
  • Publication number: 20140012203
    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: September 4, 2013
    Publication date: January 9, 2014
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Kevin Woehr, Kenneth C. Raines
  • Publication number: 20130331817
    Abstract: Syringes and flushing medical devices are generally discussed herein for withdrawing, injecting, or instilling fluids. More particularly, syringe tips and flushing tip adaptors with multiple flow channels are discussed for flushing vascular access devices. The tips have cut-outs that are located and sized to produce a relatively wider flow profile than a typical syringe tip with a single central lumen to facilitate flushing the vascular access devices.
    Type: Application
    Filed: February 23, 2012
    Publication date: December 12, 2013
    Inventor: Kevin Woehr
  • Patent number: 8597249
    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 on the needle when the same is retracted from the catheter.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 3, 2013
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Michael Zerbes
  • Publication number: 20130317440
    Abstract: The present disclosure is directed to an IV-catheter insertion device, which comprises a catheter hub at the proximal end of a tubular catheter, a protective barrel releasably joined to the catheter hub in a ready position, a needle hub with an attached hollow needle, the hollow needle extending through the catheter hub and the tubular catheter in the ready position such that that needle tip projects distally of the distal end of the tubular catheter, wherein the needle hub is displaceable in the protective barrel, and a spring clip as a needle guard element whose proximal rear wall is fixed at a distal end area of the protective barrel by means of holding members, wherein the protective barrel and the catheter hub are held by the spring clip in the ready position, and the spring clip is released from the catheter hub in a protected position in which the spring clip covers the needle tip.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: B. BRAUN MELSUNGEN AG
    Inventors: Kevin Woehr, Tomas Mueller
  • Patent number: D713522
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: September 16, 2014
    Assignee: B. Braun Melsungen AG
    Inventors: Kevin Woehr, Helmut Freigang, Michael Zerbes