Patents by Inventor James L. Carlyon

James L. Carlyon 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: 9713573
    Abstract: A method of manufacturing a metal cannula is disclosed. The method includes the step of providing a metal cannula having a longitudinal axis and defining a fluid channel. Next, the metal cannula is pressed to substantially close the fluid channel and define a first segment and a second segment. In a next step, the metal cannula is cut to separate the first segment from the second segment of the metal cannula. Each of the first and second segments have a pressed edge. The pressed edge substantially seals the fluid channel and has two pressed corners. Afterwards, each of the pressed corners are cut from the pressed edge of the first segment to define a pair of side openings and a distal blunt edge on the first segment. The side openings are in fluid communication with the fluid channel.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: July 25, 2017
    Assignee: Covidien LP
    Inventors: James L. Carlyon, Gregory Steube
  • Patent number: 9504786
    Abstract: A safety shield apparatus is provided that includes a housing that defines a cavity. A distal end of the housing includes a cover having a movable tab. A hub is disposed for movement within the housing and includes a needle having a distal end and a movable projection. The hub is biased between an extended position, such that the distal end of the needle is exposed and the movable projection is releasably disposed with the cavity, and a retracted position whereby the distal end of the needle is disposed within the housing. The movable tab is engageable with the movable projection to release the movable projection from the cavity to facilitate movement of the hub. The distal end of the housing may define a lip that is configured to capture the distal end of the needle. The hub can define an angled distal surface to orient the needle out of axial alignment with the housing and into capture with the lip.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 29, 2016
    Assignee: Covidien AG
    Inventors: James L. Carlyon, Stephen B. Earhart, Eugene E. Weilbacher
  • Patent number: 9408971
    Abstract: A syringe assembly is disclosed which includes a syringe body defining a fluid reservoir, a plunger assembly including a plunger rod and a sealing member supported on the plunger rod, and a luer cap releasably secured to a distal end of the syringe body. The luer cap includes a luer-type connector member and a fluid outlet. A one way valve is supported within the fluid outlet of the luer cap to prevent flow from the fluid outlet back into the fluid reservoir of the syringe body.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: August 9, 2016
    Assignee: Covidien LP
    Inventor: James L. Carlyon
  • Patent number: 9259533
    Abstract: A safety needle is provided. The safety needle includes a substantially hollow body and a needle assembly that includes a needle supported on a needle hub. The needle hub is movable in relation to the hollow body from an advanced position wherein a sharp tip of the needle extends from the hollow body to a retracted position wherein the sharp tip of the needle is positioned within the hollow body. The safety needle also includes a spring biased retraction mechanism that includes a constant force spring operatively connected to the needle hub. The constant force spring is a generally flat strip of prestressed material that is formed into constant coils around itself. The constant force spring is configured to bias the needle hub towards the retracted position wherein the spring provides a substantially constant force to the needle assembly while the needle assembly moves from the advanced position to the retracted position.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: February 16, 2016
    Assignee: Covidien LP
    Inventors: Eugene E. Weilbacher, James L. Carlyon
  • Patent number: 9089673
    Abstract: A safety shield incorporating a locking clip to prevent inadvertent sticks or punctures by a needle is provided. The needle can be a needle cannula or other piercing member, disposed in a sliding orientation in the safety shield, such that the needle slides within the locking clip between an aperture at a proximal end of the locking clip and a trigger hole at a distal end of the clip. Upon withdrawal of the needle after use, a binding orientation is triggered when the needle tip is withdrawn from the trigger hole. As further protection to the bi-directional lock afforded by the binding orientation, the needle is provided with a safety stop to prevent movement of the needle tip through the aperture. In other aspects, the safety shield includes a trigger bushing, in which the needle cannula is slidably received, that is sized larger than the aperture.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: July 28, 2015
    Assignee: Covidien LP
    Inventors: Richard Fiser, James L. Carlyon
  • Patent number: 8708969
    Abstract: The present disclosure relates to a safety needle assembly that includes a syringe and a safety mechanism. The safety mechanism includes a housing defining an internal cavity, a shield member at least partially disposed within the internal cavity, and first and second locking members that are configured to selectively engage and maintain the shield member in one or more predetermined positions. The locking members are movable between a locked position, in which the locking members are in engagement with the shield member to substantially prevent axial movement thereof, and a release position, in which the locking members are disengaged from the shield member to permit axial movement thereof. The first and second locking members each include biasing members. The biasing member of the each locking member is positioned to cooperate with the other locking member to normally bias the locking members towards the locked position.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: April 29, 2014
    Assignee: Covidien LP
    Inventor: James L. Carlyon
  • Publication number: 20140053953
    Abstract: A method of manufacturing a metal cannula is disclosed. The method includes the step of providing a metal cannula having a longitudinal axis and defining a fluid channel. Next, the metal cannula is pressed to substantially close the fluid channel and define a first segment and a second segment. In a next step, the metal cannula is cut to separate the first segment from the second segment of the metal cannula. Each of the first and second segments have a pressed edge. The pressed edge substantially seals the fluid channel and has two pressed corners. Afterwards, each of the pressed corners are cut from the pressed edge of the first segment to define a pair of side openings and a distal blunt edge on the first segment. The side openings are in fluid communication with the fluid channel.
    Type: Application
    Filed: February 11, 2013
    Publication date: February 27, 2014
    Inventors: James L. Carlyon, Gregory Steube
  • Publication number: 20140018740
    Abstract: A safety shield apparatus is provided that includes a housing that defines a cavity. A distal end of the housing includes a cover having a movable tab. A hub is disposed for movement within the housing and includes a needle having a distal end and a movable projection. The hub is biased between an extended position, such that the distal end of the needle is exposed and the movable projection is releasably disposed with the cavity, and a retracted position whereby the distal end of the needle is disposed within the housing. The movable tab is engageable with the movable projection to release the movable projection from the cavity to facilitate movement of the hub. The distal end of the housing may define a lip that is configured to capture the distal end of the needle. The hub can define an angled distal surface to orient the needle out of axial alignment with the housing and into capture with the lip.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 16, 2014
    Inventors: James L. Carlyon, Steve B. Earhart, Eugene E. Weilbacher
  • Publication number: 20130317426
    Abstract: A safety shield incorporating a locking clip to prevent inadvertent sticks or punctures by a needle is provided. The needle can be a needle cannula or other piercing member, disposed in a sliding orientation in the safety shield, such that the needle slides within the locking clip between an aperture at a proximal end of the locking clip and a trigger hole at a distal end of the clip. Upon withdrawal of the needle after use, a binding orientation is triggered when the needle tip is withdrawn from the trigger hole, As further protection to the bi-directional lock afforded by the binding orientation, the needle is provided with a safety stop to prevent movement of the needle tip through the aperture. In other aspects, the safety shield includes a trigger bushing, in which the needle cannula is slidably received, that is sized larger than the aperture.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: Covidien LP
    Inventors: Richard Fiser, James L. Carlyon
  • Patent number: 8540682
    Abstract: A plunger activated capping system is disclosed which includes a syringe body defining a fluid reservoir, a plunger assembly including a plunger rod and a sealing member supported on the plunger rod, and a luer cap releasably secured to a distal end of the syringe body. The luer cap includes a luer-type connector member and a fluid outlet. A luer cap plug is releasably supported on a distal end of the plunger rod at a location distally of the sealing member. The luer cap plug is movable into engagement with the luer cap to seal the fluid outlet of the luer cap upon advancement of the plunger assembly from a retracted position to an advanced position. The plunger assembly is configured to effect disengagement of the luer cap from the distal end of the syringe body when the plunger assembly is moved to the advanced position.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: September 24, 2013
    Assignee: Covidien LP
    Inventor: James L. Carlyon
  • Patent number: 8506528
    Abstract: A safety shield incorporating a locking clip to prevent inadvertent sticks or punctures by a needle is provided. The needle can be a needle cannula or other piercing member, disposed in a sliding orientation in the safety shield, such that the needle slides within the locking clip between an aperture at a proximal end of the locking clip and a trigger hole at a distal end of the clip. Upon withdrawal of the needle after use, a binding orientation is triggered when the needle tip is withdrawn from the trigger hole. As further protection to the bi-directional lock afforded by the binding orientation, the needle is provided with a safety stop to prevent movement of the needle tip through the aperture. In other aspects, the safety shield includes a trigger bushing, in which the needle cannula is slidably received, that is sized larger than the aperture.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: August 13, 2013
    Assignee: Covidien LP
    Inventors: Richard Fiser, James L. Carlyon
  • Patent number: 8506527
    Abstract: A method of supplying a flush/lock solution to a catheter assembly is disclosed which includes the steps of securing a distal end of a syringe assembly to the catheter assembly, advancing a plunger rod of the syringe assembly within a body of the syringe assembly until the plunger bottoms out on a distal wall of the body to eject a first fluid from a first fluid reservoir of the body from the fluid outlet of the syringe assembly, and after the plunger bottoms out on the distal wall of the body, advancing the plunger rod further within the body to advance a piercing member to pierce the plunger to eject a second fluid from a second fluid reservoir defined by the plunger from the fluid outlet.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: August 13, 2013
    Assignee: Covidien LP
    Inventor: James L. Carlyon
  • Patent number: 8506533
    Abstract: A surgical apparatus includes a hub, a closure valve, an internal seal member, and a spring. The hub defines an internal chamber. The closure valve is disposed within the internal chamber and defines an internal bore extending therethrough. The closure valve is movable relative to the hub between a first position, substantially sealing the internal chamber, and a second position, establishing a fluid passage extending completely through the hub. The internal seal member is disposed within the internal bore of the closure valve and is movable relative to the closure valve between a closed position, substantially sealing the internal bore, and an open position, establishing an internal passage, different from the fluid passage, extending completely through the closure valve. The spring is disposed within the internal chamber and is configured to bias the internal seal member towards the closed position, thereby biasing the closure valve towards the first position.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: August 13, 2013
    Assignee: Covidien LP
    Inventors: James L Carlyon, David J. Salto, Eugene Schrader
  • Patent number: 8486015
    Abstract: A safety shield apparatus is provided that includes a housing that defines a cavity. A distal end of the housing includes a cover having a movable tab. A hub is disposed for movement within the housing and includes a needle having a distal end and a movable projection. The hub is biased between an extended position, such that the distal end of the needle is exposed and the movable projection is releasably disposed with the cavity, and a retracted position whereby the distal end of the needle is disposed within the housing. The movable tab is engageable with the movable projection to release the movable projection from the cavity to facilitate movement of the hub. The distal end of the housing may define a lip that is configured to capture the distal end of the needle. The hub can define an angled distal surface to orient the needle out of axial alignment with the housing and into capture with the lip.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: July 16, 2013
    Assignee: Covidien AG
    Inventors: James L. Carlyon, Steve Earhart, Eugene E. Weilbacher
  • Publication number: 20130172837
    Abstract: A negative pressure wound therapy apparatus includes a wound dressing for forming a substantially fluid-tight seal over a wound to define a reservoir over the wound in which a negative pressure may be maintained. A vacuum source is in fluid communication with the reservoir to provide an appropriate negative pressure to the reservoir to stimulate healing of the wound. The apparatus includes a fluid conduit in fluid communication with the reservoir and defining a fluid flow path for carrying fluids from the reservoir, and a fluid line coupling adapted for selective engagement and disengagement of first and second coupling segments to respectively maintain and interrupt the fluid flow path.
    Type: Application
    Filed: September 10, 2012
    Publication date: July 4, 2013
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Gregory Kenny, John DePiano, JR., James L. Carlyon, David E. Fink, Richard M. Braga
  • Patent number: 8398598
    Abstract: Featured is a medical infusion device for vascular access with enhanced flashback visualization that includes a hub assembly having a flashback chamber. The hub assembly includes a proximal portion, a distal portion and a substantially transparent window section intermediate the proximal portion and distal portion. A needle is coupled to the flashback chamber so that fluid flows through the lumen of the needle into the flashback chamber after the needle is inserted into a blood vessel. A contrasting member is disposed on at least a portion of the hub assembly, so that when blood enters the flashback chamber, the contrasting member provides a high-contrast background when viewed through the window section.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 19, 2013
    Inventors: James L. Carlyon, Eugene F. Schrader, Richard L. Fiser
  • Patent number: 8382722
    Abstract: A method of manufacturing a metal cannula is disclosed. The method includes the step of providing a metal cannula having a longitudinal axis and defining a fluid channel. Next, the metal cannula is pressed to substantially close the fluid channel and define a first segment and a second segment. In a next step, the metal cannula is cut to separate the first segment from the second segment of the metal cannula. Each of the first and second segments have a pressed edge. The pressed edge substantially seals the fluid channel and has two pressed corners. Afterwards, each of the pressed corners are cut from the pressed edge of the first segment to define a pair of side openings and a distal blunt edge on the first segment. The side openings are in fluid communication with the fluid channel.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 26, 2013
    Assignee: Covidien LP
    Inventors: James L. Carlyon, Gregory Steube
  • Patent number: 8348893
    Abstract: A catheter assembly is disclosed which includes a cannula assembly, a locking clip assembly and a housing. The locking clip assembly includes a locking clip, a collar, and a biasing member. The locking clip has a first leg defining a trigger hole and a second leg defining a binding hole. The collar is positioned to engage the locking clip and the biasing member is positioned to urge the collar into engagement with the locking clip to urge the locking clip from a first orientation to a second orientation. In the second orientation, the binding hole is positioned to bind with the insertion needle to prevent retraction of the insertion needle.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: January 8, 2013
    Assignee: Covidien LP
    Inventor: James L. Carlyon
  • Publication number: 20120220950
    Abstract: A method of supplying a flush/lock solution to a catheter assembly is disclosed which includes the steps of securing a distal end of a syringe assembly to the catheter assembly, advancing a plunger rod of the syringe assembly within a body of the syringe assembly until the plunger bottoms out on a distal wall of the body to eject a first fluid from a first fluid reservoir of the body from the fluid outlet of the syringe assembly, and after the plunger bottoms out on the distal wall of the body, advancing the plunger rod further within the body to advance a piercing member to pierce the plunger to eject a second fluid from a second fluid reservoir defined by the plunger from the fluid outlet.
    Type: Application
    Filed: March 20, 2012
    Publication date: August 30, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventor: James L. Carlyon
  • Publication number: 20120089101
    Abstract: A surgical apparatus includes a hub, a closure valve, an internal seal member, and a spring. The hub defines an internal chamber. The closure valve is disposed within the internal chamber and defines an internal bore extending therethrough. The closure valve is movable relative to the hub between a first position, substantially sealing the internal chamber, and a second position, establishing a fluid passage extending completely through the hub. The internal seal member is disposed within the internal bore of the closure valve and is movable relative to the closure valve between a closed position, substantially sealing the internal bore, and an open position, establishing an internal passage, different from the fluid passage, extending completely through the closure valve. The spring is disposed within the internal chamber and is configured to bias the internal seal member towards the closed position, thereby biasing the closure valve towards the first position.
    Type: Application
    Filed: October 31, 2011
    Publication date: April 12, 2012
    Applicant: Tyco Healthcare Group LP
    Inventors: James L. Carlyon, David J. Salto, Eugene Schrader