Patents by Inventor Melvin D. Jensen
Melvin D. Jensen 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: 11779519Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: GrantFiled: October 9, 2020Date of Patent: October 10, 2023Assignee: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, DeLoy Lindley, Melvin D. Jensen
-
Patent number: 11724082Abstract: A male luer connector includes a body having a first end configured to be connected to a fluid line, a second end opposed to the first end, and a body longitudinal axis. The second end is configured to be inserted into and form a luer slip connection with a female luer connector. The male luer connector also includes a locking collar that is connected to the body in a manner such that the locking collar rotates about the longitudinal axis. In some cases, the body second end does not protrude beyond a plane that is transverse to the longitudinal axis and that includes an end face of the locking collar, and/or when male and female connectors are engaged, the locking collar engages an outer surface of the female fluid line connector and is deformed by the engagement.Type: GrantFiled: February 11, 2019Date of Patent: August 15, 2023Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Melvin D. Jensen
-
Publication number: 20210093509Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: ApplicationFiled: October 9, 2020Publication date: April 1, 2021Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, DeLoy Lindley, Melvin D. Jensen
-
Patent number: 10842714Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: GrantFiled: August 31, 2016Date of Patent: November 24, 2020Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, Deloy Lindley, Melvin D. Jensen
-
Patent number: 10507276Abstract: A medical fluid delivery cassette configured for use with a medical fluid pumping system and related systems and methods. The medical fluid delivery cassette includes a base and a membrane that together define a fluid pump chamber. The medical fluid delivery cassette further includes a member configured to apply an outward force to an inner surface of the membrane.Type: GrantFiled: July 29, 2016Date of Patent: December 17, 2019Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Kulwinder S. Plahey, Lynn Jensen, Melvin D. Jensen, DeLoy Lindley, Joseph Michael Fallon
-
Publication number: 20190167968Abstract: A male luer connector includes a body having a first end configured to be connected to a fluid line, a second end opposed to the first end, and a body longitudinal axis. The second end is configured to be inserted into and form a luer slip connection with a female luer connector. The male luer connector also includes a locking collar that is connected to the body in a manner such that the locking collar rotates about the longitudinal axis. In some cases, the body second end does not protrude beyond a plane that is transverse to the longitudinal axis and that includes an end face of the locking collar, and/or when male and female connectors are engaged, the locking collar engages an outer surface of the female fluid line connector and is deformed by the engagement.Type: ApplicationFiled: February 11, 2019Publication date: June 6, 2019Inventors: Lynn E. Jensen, Melvin D. Jensen
-
Patent number: 10207096Abstract: A male luer connector includes a body having a first end configured to be connected to a fluid line, a second end opposed to the first end, and a body longitudinal axis. The second end is configured to be inserted into and form a luer slip connection with a female luer connector. The male luer connector also includes a locking collar that is connected to the body in a manner such that the locking collar rotates about the longitudinal axis. In some cases, the body second end does not protrude beyond a plane that is transverse to the longitudinal axis and that includes an end face of the locking collar, and/or when male and female connectors are engaged, the locking collar engages an outer surface of the female fluid line connector and is deformed by the engagement.Type: GrantFiled: February 27, 2013Date of Patent: February 19, 2019Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Melvin D. Jensen
-
Patent number: 9585810Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: GrantFiled: October 14, 2010Date of Patent: March 7, 2017Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, DeLoy Lindley, Melvin D. Jensen
-
Publication number: 20170043079Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: ApplicationFiled: August 31, 2016Publication date: February 16, 2017Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, Deloy Lindley, Melvin D. Jensen
-
Publication number: 20160331883Abstract: A medical fluid delivery cassette configured for use with a medical fluid pumping system and related systems and methods. The medical fluid delivery cassette includes a base and a membrane that together define a fluid pump chamber. The medical fluid delivery cassette further includes a member configured to apply an outward force to an inner surface of the membrane.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Inventors: Kulwinder S. Plahey, Lynn Jensen, Melvin D. Jensen, DeLoy Lindley, Joseph Michael Fallon
-
Patent number: 9421314Abstract: A medical fluid delivery cassette configured for use with a medical fluid pumping system and related systems and methods. The medical fluid delivery cassette includes a base and a membrane that together define a fluid pump chamber. The medical fluid delivery cassette further includes a member configured to apply an outward force to an inner surface of the membrane.Type: GrantFiled: July 15, 2010Date of Patent: August 23, 2016Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Kulwinder S. Plahey, Lynn Jensen, Melvin D. Jensen, DeLoy Lindley, Joseph Michael Fallon
-
Publication number: 20140243797Abstract: A male luer connector includes a body having a first end configured to be connected to a fluid line, a second end opposed to the first end, and a body longitudinal axis. The second end is configured to be inserted into and form a luer slip connection with a female luer connector. The male luer connector also includes a locking collar that is connected to the body in a manner such that the locking collar rotates about the longitudinal axis. In some cases, the body second end does not protrude beyond a plane that is transverse to the longitudinal axis and that includes an end face of the locking collar, and/or when male and female connectors are engaged, the locking collar engages an outer surface of the female fluid line connector and is deformed by the engagement.Type: ApplicationFiled: February 27, 2013Publication date: August 28, 2014Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Lynn E. Jensen, Melvin D. Jensen
-
Patent number: 8343346Abstract: A cassette is described for holding circuit components used with a hemodialysis machine.Type: GrantFiled: December 23, 2011Date of Patent: January 1, 2013Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Joseph Crnkovich, Lynn E. Jensen, Melvin D. Jensen, DeLoy Lindley, Mohsen Reihanifam, Colin Weaver
-
Patent number: 8187466Abstract: In general, this disclosure relates to extracorporeal fluid circuits. In some aspects, an air-release device for allowing air to be released from a liquid in extracorporeal circuitry includes an elongate chamber having a bottom region and a top region and a fluid entry port and fluid exit port at or near the bottom region. The air release device also includes a vent structure at or near the top region of the elongate chamber that includes a porous material capable of swelling when moistened such that the vent structure can inhibit liquid from escaping the air-release device during use.Type: GrantFiled: May 5, 2011Date of Patent: May 29, 2012Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Thomas Irvin Folden, Martin Joseph Crnkovich, Colin Weaver, Michael Emmanuel Kotsos, Melvin D. Jensen
-
Publication number: 20120091053Abstract: A cassette is described for holding circuit components used with a hemodialysis machine.Type: ApplicationFiled: December 23, 2011Publication date: April 19, 2012Applicant: Fresenius Medical Care Holdings, Inc.Inventors: Martin Joseph Crnkovich, Lynn E. Jensen, Melvin D. Jensen, DeLoy Lindley, Mohsen Reihanifam, Colin Weaver
-
Publication number: 20120095392Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: ApplicationFiled: October 14, 2010Publication date: April 19, 2012Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, DeLoy Lindley, Melvin D. Jensen
-
Patent number: 8110104Abstract: A cassette is described for holding circuit components used with a hemodialysis machine.Type: GrantFiled: September 19, 2008Date of Patent: February 7, 2012Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Joseph Crnkovich, Lynn E. Jensen, Melvin D. Jensen, Deloy Lindley, Mohsen Reihanifam, Colin Weaver
-
Publication number: 20110210054Abstract: In general, this disclosure relates to extracorporeal fluid circuits. In some aspects, an air-release device for allowing air to be released from a liquid in extracorporeal circuitry includes an elongate chamber having a bottom region and a top region and a fluid entry port and fluid exit port at or near the bottom region. The air release device also includes a vent structure at or near the top region of the elongate chamber that includes a porous material capable of swelling when moistened such that the vent structure can inhibit liquid from escaping the air-release device during use.Type: ApplicationFiled: May 5, 2011Publication date: September 1, 2011Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Thomas Irvin Folden, Martin Joseph Crnkovich, Colin Weaver, Michael Emmanuel Kotsos, Melvin D. Jensen
-
Patent number: 7938967Abstract: A vent assembly is described for use in an extracorporeal fluid unit. A vent structure adjacent to a micro-porous membrane forms the assembly. The vent structure is porous, but expands when the vent structure becomes wet, thereby closing off the pores and inhibiting (e.g., preventing) fluid from flowing through the vent structure. The vent structure also protects the membrane from becoming wet, such as from condensation.Type: GrantFiled: September 18, 2008Date of Patent: May 10, 2011Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Thomas Irvin Folden, Martin Joseph Crnkovich, Colin Weaver, Michael Emmanuel Kotsos, Melvin D. Jensen
-
Publication number: 20110015610Abstract: A medical fluid delivery cassette configured for use with a medical fluid pumping system and related systems and methods. The medical fluid delivery cassette includes a base and a membrane that together define a fluid pump chamber. The medical fluid delivery cassette further includes a member configured to apply an outward force to an inner surface of the membrane.Type: ApplicationFiled: July 15, 2010Publication date: January 20, 2011Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Kulwinder S. Plahey, Lynn Jensen, Melvin D. Jensen, DeLoy Lindley, Joseph Michael Fallon