Patents by Inventor Stephen H. Diaz

Stephen H. Diaz 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: 10010677
    Abstract: One embodiment is directed to a system for injecting, comprising a syringe body defining an interior medicine chamber; a stopper member configured to be inserted into the interior medicine chamber to contain medicine within the medicine chamber; a plunger member configured to be manually manipulated to insert the stopper member relative to the syringe body; and a needle having proximal and distal ends, the proximal end comprising an anchoring geometry configured to be at least partially inserted into the stopper member such that upon retraction of the stopper member, the needle is pulled proximally along with the stopper to be at least partially contained within the interior medicine chamber.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: July 3, 2018
    Assignee: CREDENCE MEDSYSTEMS, INC.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley
  • Publication number: 20180161518
    Abstract: A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Application
    Filed: November 1, 2017
    Publication date: June 14, 2018
    Applicant: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley, Mina M. Leung
  • Publication number: 20180133408
    Abstract: A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body, the plunger member. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is at least partially retractable into plunger interior. The needle proximal end feature includes an annular distally facing surface.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 17, 2018
    Applicant: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Scott Segelke, John Merhige
  • Publication number: 20180117261
    Abstract: A system for mixing drug products and injecting includes a syringe body, proximal and distal stopper members disposed in the syringe body, a plunger member, and a needle hub assembly coupled to the distal needle interface of the syringe body. The proximal and distal stopper members form a proximal drug chamber between there between and a distal drug chamber between the distal stopper member and a distal end of the syringe body. The plunger member includes a needle retention feature, an energy-storage member, and an energy-storage member latching member all disposed in disposed in a plunger interior. First and second sizes of the respective proximal and distal drug chambers can be modified by movement of the proximal and distal stopper members relative to the syringe body. The needle is at least partially retractable into plunger interior upon manipulation of the plunger member relative to the syringe body.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 3, 2018
    Applicant: Credence MedSystems, Inc.
    Inventors: Gary Steese-Bradley, Stephen H. Diaz, Alan E. Shluzas, John F. Shanley, Jeff Tillack, Dan Thayer, John Merhige
  • Publication number: 20180117260
    Abstract: A system for injecting includes a cartridge body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the cartridge body. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy-storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the cartridge body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is retractable into plunger interior upon manipulation of the plunger member to actuate the energy-storage member latching member.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 3, 2018
    Applicant: Credence MedSystems, Inc.
    Inventors: Alan E. Shluzas, Mina M. Leung, Stephen H. Diaz, Jeff Tillack
  • Patent number: 9919110
    Abstract: One embodiment is directed to a safety syringe system, comprising: an off-the-shelf syringe assembly comprising a syringe body and a plunger tip; a needle assembly removably coupleable to the distal end of the syringe body such that medicinal fluid may be transferred through a retractable needle coupled to a needle housing comprising the needle assembly upon insertion of the plunger tip relative to the syringe body; and a plunger control assembly coupled to the plunger tip and configured to facilitate manual insertion of the plunger tip relative to the syringe body; wherein upon insertion of the plunger tip to a final insertion state and release of an associated manual insertion load, the plunger tip may be proximally withdrawn, pulling the retractable needle proximally relative to the needle housing to a safe locked and retracted state wherein it is no longer exposed for injection.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: March 20, 2018
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, John F. Shanley, Alan E. Shluzas, Jeff Tillack, Dan Thayer
  • Patent number: 9883857
    Abstract: One embodiment is directed to a system for closing a wound created across a portion of a tissue structure, comprising a suture member having proximal and distal ends; an anchor member coupled to the distal end of the suture member; a tension retainer assembly releasably coupleable to the suture member; and a suture buttress movably intercoupled to the suture member between the anchor member and the tension retainer and configured to minimize direct sliding contact between the suture member and the tissue structure portion around the location of the suture buttress.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: February 6, 2018
    Assignee: Entourage Medical Technologies, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz
  • Patent number: 9861763
    Abstract: One embodiment is directed to a pre-filled safety syringe system, comprising a syringe body; a plunger tip positioned within the syringe body; a needle assembly removably coupleable to the distal end of the syringe body such that a medicinal fluid may be transferred through a retractable needle coupled to a needle housing comprising the needle assembly upon insertion of the plunger tip relative to the syringe body; and a plunger control assembly coupled to the plunger tip and configured to facilitate manual insertion of the plunger tip relative to the syringe body; wherein upon insertion and release of the plunger tip, a retraction load coupled between the syringe body and the plunger tip causes the plunger tip to be proximally withdrawn, pulling the retractable needle proximally relative to the needle housing to a safe locked and retracted state.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: January 9, 2018
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, John F. Shanley, Alan E. Shluzas, Jeff Tillack, Dan Thayer
  • Patent number: 9861762
    Abstract: One embodiment is directed to a safety syringe system, comprising a syringe body; a plunger tip positioned within the syringe body; a needle assembly removably coupleable to the distal end of the syringe body such that a medicinal fluid may be transferred through a retractable needle coupled to a needle housing comprising the needle assembly upon insertion of the plunger tip relative to the syringe body; and a plunger control assembly coupled to the plunger tip and configured to facilitate manual insertion of the plunger tip relative to the syringe body; wherein the needle assembly comprises a needle housing member removably coupled to the retractable needle and also removably coupled to a needle cover, the needle cover providing a relatively large geometric guiding surface for aligning a proximal end of the retractable needle as it is guided into fluidic contact with the fluid reservoir of the syringe body.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: January 9, 2018
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, John F. Shanley, Alan E. Shluzas, Jeff Tillack, Dan Thayer
  • Patent number: 9814843
    Abstract: One embodiment is directed to a method for safe injection, comprising: providing an injection assembly and inserting a plunger tip of the injection assembly to a final insertion state and releasing an associated manual insertion load. A retraction load developed sufficient to cause the plunger tip to be proximally withdrawn pulls the retractable needle proximally relative to the needle housing to a retracted state wherein a distal tip of the needle becomes mechanically locked into an encapsulated configuration wherein it is no longer exposed for injection.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 14, 2017
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, John F. Shanley, Alan E. Shluzas, Jeff Tillack, Dan Thayer
  • Patent number: 9814842
    Abstract: One embodiment is directed to a safety syringe system, comprising a syringe body; a plunger tip positioned within the syringe body; a needle assembly removably coupleable to the distal end of the syringe body such that a medicinal fluid may be transferred through a retractable needle coupled to a needle housing comprising the needle assembly upon insertion of the plunger tip relative to the syringe body; and a plunger control assembly coupled to the plunger tip and configured to facilitate manual insertion of the plunger tip relative to the syringe body; wherein upon insertion and release of the plunger tip, a retraction load coupled between the syringe body and the plunger tip causes the plunger tip to be proximally withdrawn, pulling the retractable needle proximally relative to the needle housing to a safe locked and retracted state.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 14, 2017
    Assignee: Credence MedSystems, Inc.
    Inventors: Stephen H. Diaz, John F. Shanley, Alan E. Shluzas, Jeff Tillack, Dan Thayer
  • Patent number: 9782168
    Abstract: One embodiment is directed to a system for providing surgical access across a wall of a tissue structure, comprising: a delivery member having proximal and distal ends; a first helical member having proximal and distal ends and a helical shape, the proximal end coupled to the delivery member distal end, the distal end extending distally of the delivery member distal end; an anchor member removably coupled to the helical member distal end; and a suture member coupled distally to a portion of the anchor member and extending proximally to a position wherein at least a portion of it may be freely manipulated by an operator; wherein the proximal end of the suture member extends proximally beyond the deployed suture pattern into a local suture length storage reservoir coupled to the delivery member, the reservoir containing an additional length of suture and being configured such that upon rotation of the delivery member in the first direction, the anchor member pulls along the distal portion of the suture member c
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: October 10, 2017
    Assignee: ENTOURAGE MEDICAL TECHNOLOGIES, INC.
    Inventors: John F. Shanley, Stephen H. Diaz, Alan E. Shluzas, Frank Litvack
  • Patent number: 9730690
    Abstract: One embodiment is directed to a method for providing surgical access across a wall of a tissue structure, comprising: installing a guiding member into the wall of the tissue structure to a desired guiding depth; using the installed guiding member as a positional guide, advancing a helical member into the wall of the tissue to a desired helical member depth, the helical member comprising a helical member distal end removably coupled to an anchor member which is coupled to a distal end of a suture member, such that advancing the helical member into the wall causes the anchor member to be advanced into the wall and to pull a distal portion of the suture member along with the anchor member into the wall to substantially encapsulate a number of helical loops of suture member that is greater than about 1 loop and less than about 3 loops; withdrawing the helical member from the wall of the tissue structure, leaving the anchor member in a deployed configuration decoupled from the helical member and coupled to at leas
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 15, 2017
    Assignee: ENTOURAGE MEDICAL TECHNOLOGIES, INC.
    Inventors: John F. Shanley, Stephen H. Diaz, Alan E. Shluzas, Frank Litvack
  • Patent number: 9730687
    Abstract: One embodiment is directed to a system for closing a wound created at least partially across a tissue structure wall, comprising: a helical needle; a suture member coupled to the helical needle and configured to be pulled along a helical pattern with helical movement of the helical needle; an outer delivery member rotatably coupled to the helical needle; a drive shaft axially movably coupled to the outer delivery member; and a plurality of suture guide struts projecting distally from the outer delivery member; wherein upon helical insertion of the helical needle relative to the outer delivery member, the helical needle is advanced such that it becomes disposed around the guide struts, such that the guide struts prevent radial migration of the suture as it is helically wound into the tissue structure.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: August 15, 2017
    Assignee: ENTOURAGE MEDICAL TECHNOLOGIES, INC.
    Inventors: Alan E. Shluzas, Stephen H. Diaz
  • Publication number: 20170216143
    Abstract: An assembly for mixing drug components includes a housing to at least partially hold a first drug component container and a second drug component container. The assembly also includes a transfer member having first and second ends to fluidly couple the respective first and second drug component containers. The assembly further includes a pressure member to fluidly couple the first drug component container to a pressure generation chamber. In addition, the assembly includes an energy storage member to generate pressure in the pressure generation chamber to transfer a fluid from the first drug component container into the second drug component container. Moreover, the assembly includes an exit member to fluidly couple the second drug component container to an exterior of the assembly.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 3, 2017
    Inventors: Alan E. Shluzas, Stephen H. Diaz
  • Patent number: 9675338
    Abstract: One embodiment is directed to a system for providing surgical access across a wall of a tissue structure, comprising a delivery member having proximal and distal ends; a first helical member having proximal and distal ends and a helical shape, the proximal end coupled to the delivery member distal end, the distal end extending distally of the delivery member distal end; an anchor member removably coupled to the helical member distal end; and a suture member coupled distally to a portion of the anchor member and extending proximally to a position wherein at least a portion of it may be freely manipulated by an operator; wherein upon rotation of the delivery member in a first direction, the first helical member and coupled anchor member are advanced across at least a portion of the wall of the tissue structure, pulling along the distal portion of the suture member in a deployed suture pattern which remains coupled to the anchor member, the deployed suture pattern being characterized in that it is substantially
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 13, 2017
    Assignee: ENTOURAGE MEDICAL TECHNOLOGIES, INC.
    Inventors: John F. Shanley, Stephen H. Diaz, Alan E. Shluzas, Frank Litvack
  • Patent number: 9622774
    Abstract: Embodiments are described for creating and closing tissue access ports, such as transapical access ports, which involve placement of an introducer across the subject tissue structure, and deployment of a controllable port closure device assembly configured to remain in place with a ratcheting mechanism, and to hold the tissue surrounding the previous access port location closed against a sealing disc with proximal and distal strut assemblies, after the introducer has been removed.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 18, 2017
    Assignee: ENTOURAGE MEDICAL TECHNOLOGIES, INC.
    Inventors: Frank Litvack, John F. Shanley, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley
  • Publication number: 20160279333
    Abstract: One embodiment is directed to a system for injecting, comprising a syringe body defining an interior medicine chamber; a stopper member configured to be inserted into the interior medicine chamber to contain medicine within the medicine chamber; a plunger member configured to be manually manipulated to insert the stopper member relative to the syringe body; and a needle having proximal and distal ends, the proximal end comprising an anchoring geometry configured to be at least partially inserted into the stopper member such that upon retraction of the stopper member, the needle is pulled proximally along with the stopper to be at least partially contained within the interior medicine chamber.
    Type: Application
    Filed: December 1, 2015
    Publication date: September 29, 2016
    Applicant: Credence Medsystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley
  • Publication number: 20160213361
    Abstract: Embodiments are described for creating and closing tissue access ports, such as transapical access ports, which involve placement of an introducer across the subject tissue structure, and deployment of a controllable port closure device assembly configured to remain in place with a ratcheting mechanism, and to hold the tissue surrounding the previous access port location closed against a sealing disc with proximal and distal strut assemblies, after the introducer has been removed.
    Type: Application
    Filed: April 7, 2016
    Publication date: July 28, 2016
    Applicant: Entourage Medical Technologies, Inc.
    Inventors: Frank Litvack, John F. Shanley, Alan E. Shluzas, Stephen H. Diaz, Gary Steese-Bradley
  • Publication number: 20160206834
    Abstract: One embodiment is directed to a system for injecting, comprising a syringe body defining an interior medicine chamber; a stopper member configured to be inserted into the interior medicine chamber to contain medicine within the medicine chamber; a plunger member configured to be manually manipulated to insert the stopper member relative to the syringe body; and a needle having proximal and distal ends, the proximal end comprising an anchoring geometry configured to be at least partially inserted into the stopper member such that upon retraction of the stopper member, the needle is pulled proximally along with the stopper to be at least partially contained within the interior medicine chamber.
    Type: Application
    Filed: April 24, 2015
    Publication date: July 21, 2016
    Applicant: Credence Medsystems, Inc.
    Inventors: Alan E. Shluzas, Stephen H. Diaz, John F. Shanley, Jeff Tillack, Dan Thayer, Gary Steese-Bradley