Patents by Inventor Thomas T Koehler
Thomas T Koehler 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).
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Publication number: 20240293646Abstract: A safety catheter assembly has a clip guard that covers and protects the needle clip from the time that the catheter assembly is shipped out in the ready state, through its use where the distal tip of the needle is entrapped in the needle clip after use, and to when the clip guard and the safety needle clip housed therein are removed from the catheter hub. A passive safety system of the needle clip couples the catheter hub and the needle housing in the ready state and during the use of the catheter assembly, and releases the catheter hub from the needle housing once the contaminated needle tip is captured in the needle clip. A wiper provided to the catheter assembly wipes blood from the needle to prevent exposure of the contaminated blood. The wiper may also act to retain a septum in the catheter hub. The clip guard may be adapted to be used with a catheter hub having a multiuse seal member.Type: ApplicationFiled: July 25, 2022Publication date: September 5, 2024Applicant: SMITHS MEDICAL ASD, INC.Inventors: Christopher D Roehl, Thomas T Koehler
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Publication number: 20240277970Abstract: A safety catheter device has a clip guard that covers the needle tip protector or safety needle clip from the time that the device is shipped out in the ready to use position, through its use as a safety catheter device, to when the clip guard and the safety needle clip enclosed by the clip guard is removed from the catheter hub after the catheter extending from the catheter hub has been correctly placed into the vein or artery of the patient. A clip cup may be added to provide an additional level of protection for the safety needle clip and the sharp distal tip of the needle contained therein. Safety needle clips of different configurations used with the safety catheter device are described.Type: ApplicationFiled: July 25, 2022Publication date: August 22, 2024Applicant: SMITHS MEDICAL ASD, INC.Inventors: Christopher D Roehl, Thomas T Koehler
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Publication number: 20240269437Abstract: A safety catheter assembly that may be a closed system catheter (CSC) has a seal member proximal a septum in the catheter hub. In a first embodiment, the seal member may be a cylindrical sleeve whereto a locking portion of a needle clip is positioned to fixedly hold the needle clip inside the catheter hub in a ready state. In a second embodiment, the needle clip is housed in a substantially cylindrical seal member. The seal member with the needle clip therein and the catheter hub are fixedly coupled together in the ready state. In a third embodiment, a retainer member at the catheter hub couples the needle clip to the catheter hub in the ready state and the seal member is distal the retainer member. In all the embodiments, the seal member may act as a reservoir for fluid in the interior cavity of the catheter hub that may back flow past the septum.Type: ApplicationFiled: July 25, 2022Publication date: August 15, 2024Applicant: SMITHS MEDICAL ASD, INC.Inventors: Christopher D Roehl, Thomas T Koehler
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Publication number: 20240181220Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: ApplicationFiled: February 8, 2024Publication date: June 6, 2024Applicant: SMITHS MEDICAL ASD, INC.Inventors: Gursel Akcay, Harsh D. Chheda, David J. Goral, Thomas T. Koehler
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Patent number: 11931533Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: GrantFiled: January 12, 2023Date of Patent: March 19, 2024Assignee: Smiths Medical ASD, Inc.Inventors: Gursel Akcay, Harsh D Chheda, David J Goral, Thomas T Koehler
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Publication number: 20230149666Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: ApplicationFiled: January 12, 2023Publication date: May 18, 2023Applicant: SMITHS MEDICAL ASD, INC.Inventors: Gursel Akcay, Harsh D Chheda, David J Goral, Thomas T Koehler
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Patent number: 11590324Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: GrantFiled: December 17, 2019Date of Patent: February 28, 2023Assignee: Smiths Medical ASD, IncInventors: Gursel Akcay, Harsh D Chheda, David J Goral, Thomas T Koehler
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Patent number: 11369749Abstract: A safety catheter includes a catheter hub, a needle cannula having a tip, and a tip protector. The tip protector includes an outer member and an inner member therein. The outer member has a projection releasably engaging the catheter hub. The inner member has a pair of arms extending to free ends from a base. The inner member is axially shiftable relative to the outer member between a first position wherein the needle tip is distal of the tip protector and the free ends of the arms are spread apart such that the distal tip is not shielded, and a second position wherein the tip is within the inner and outer members and the free ends of the arms are brought into close proximity such that the distal tip is shielded. The inner member is entirely received within the outer member in both the fort and the second positions thereof.Type: GrantFiled: April 26, 2019Date of Patent: June 28, 2022Assignee: SMITHS MEDICAL ASD, INC.Inventors: Thomas T Koehler, Kathryn L Felicito, Harsh Chheda, Oscar R Abriles
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Patent number: 11219747Abstract: An intravenous catheter assembly that includes a catheter tube and an introducer needle that is disposed, at least in part, within the catheter tube when the introducer needle is in a ready for use position. The introducer needle includes a lateral surface that defines a relief that is positioned under the distal end of the catheter tube when the introducer is in the ready for use position to provide a flow path into a flash indication space.Type: GrantFiled: March 6, 2018Date of Patent: January 11, 2022Assignee: SMITHS MEDICAL ASD, INC.Inventors: Jay T Breindel, Harsh D Chheda, David J Goral, Thomas T Koehler, James Muskatello
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Publication number: 20210100985Abstract: A safety catheter insertion assembly configured to inhibit access to the distal tip of a needle cannula prior to release of a catheter insertion assembly from a catheter hub. The safety catheter insertion assembly including a catheter assembly having an elastomeric blood control valve and a catheter insertion device having a safety clip, the safety clip movable between an expanded configuration in which a portion of the safety clip applies a compressive force to a portion of the elastomeric blood control valve, and a collapsed configuration in which the compressive force is reduced and release of the safety clip from the elastomeric blood control valve is enabled.Type: ApplicationFiled: January 31, 2019Publication date: April 8, 2021Inventors: Gursel Akcay, Jay T. Breindel, Harsh D. Chheda, Kathryn Felicito, David J. Goral, Thomas T. Koehler, Christopher Roehl
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Publication number: 20200230368Abstract: An intravenous catheter assembly that includes a catheter tube and an introducer needle that is disposed, at least in part, within the catheter tube when the introducer needle is in a ready for use position. The introducer needle includes a lateral surface that defines a relief that is positioned under the distal end of the catheter tube when the introducer is in the ready for use position to provide a flow path into a flash indication space.Type: ApplicationFiled: March 6, 2018Publication date: July 23, 2020Applicant: SMITHS MEDICAL ASD, INC.Inventors: Jay T Breindel, Harsh D Chheda, David J Goral, Thomas T Koehler, James Muskatello
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Publication number: 20200121895Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: ApplicationFiled: December 17, 2019Publication date: April 23, 2020Applicant: SMITHS MEDICAL ASD, INC.Inventors: Gursel Akcay, Harsh D. Chheda, David J. Goral, Thomas T. Koehler
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Patent number: 10543341Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: GrantFiled: March 21, 2018Date of Patent: January 28, 2020Assignee: SMITHS MEDICAL ASD, INC.Inventors: Gursel Akcay, Harsh D Chheda, David J Goral, Thomas T Koehler
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Publication number: 20190374749Abstract: A safety intravenous catheter that includes a passive release feature. The catheter assembly includes ready, safe, and released positions. In the release position, a retainer being in a proximal retainer position relative to a collar enables release of the catheter hub from the catheter insertion device. The sharp tip of the insertion needle remains inaccessible in the release position in order to prevent unwanted needle sticks.Type: ApplicationFiled: March 21, 2018Publication date: December 12, 2019Applicant: SMITHS MEDICAL ASD, INC.Inventors: Gursel Akcay, Harsh D Chheda, David J Goral, Thomas T Koehler
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Publication number: 20190262549Abstract: A safety catheter includes a catheter hub, a needle cannula having a tip, and a tip protector. The tip protector includes an outer member and an inner member therein. The outer member has a projection releasably engaging the catheter hub. The inner member has a pair of arms extending to free ends from a base. The inner member is axially shiftable relative to the outer member between a first position wherein the needle tip is distal of the tip protector and the free ends of the arms are spread apart such that the distal tip is not shielded, and a second position wherein the tip is within the inner and outer members and the free ends of the arms are brought into close proximity such that the distal tip is shielded. The inner member is entirely received within the outer member in both the fort and the second positions thereof.Type: ApplicationFiled: April 26, 2019Publication date: August 29, 2019Applicant: Smiths Medical ASD, Inc.Inventors: Thomas T. Koehler, Kathryn L. Felicito, Harsh Chheda, Oscar R. Abriles
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Patent number: 10314984Abstract: A safety catheter includes a catheter hub, a needle cannula having a tip, and a tip protector. The tip protector includes an outer member and an inner member therein. The outer member has a projection releasably engaging the catheter hub. The inner member has a pair of arms extending to free ends from a base. The inner member is axially shiftable relative to the outer member between a first position wherein the needle tip is distal of the tip protector and the free ends of the arms are spread apart such that the distal tip is not shielded, and a second position wherein the tip is within the inner and outer members and the free ends of the arms are brought into close proximity such that the distal tip is shielded. The inner member is entirely received within the outer member in both the fort and the second positions thereof.Type: GrantFiled: December 19, 2016Date of Patent: June 11, 2019Assignee: SMITHS MEDICAL ASD, INC.Inventors: Thomas T. Koehler, Kathryn L. Felicito, Harsh Chheda, Oscar R. Abriles
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Publication number: 20180296820Abstract: A stopcock and sampling port device. The stopcock and sampling port device configured to reduce the occurrence of stagnation fluid flowing therethrough, the stopcock and sampling port device including a housing, an elastomeric element, a cap, a handle, and a divided septum, the housing defining an internal fluid passageway having a first port, a second port, and a third port, the divided septum operably coupled to the housing within the third port and configured to encourage turbulence of fluid passing through the third port, thereby reducing the occurrence of stagnation of fluid flowing therethrough.Type: ApplicationFiled: April 12, 2018Publication date: October 18, 2018Inventors: Kevin Bogoslofski, Jay T. Breindel, Thomas T. Koehler, Christopher Roehl
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Publication number: 20170095617Abstract: A safety catheter includes a catheter hub, a needle cannula having a tip, and a tip protector. The tip protector includes an outer member and an inner member therein. The outer member has a projection releasably engaging the catheter hub. The inner member has a pair of arms extending to free ends from a base. The inner member is axially shiftable relative to the outer member between a first position wherein the needle tip is distal of the tip protector and the free ends of the arms are spread apart such that the distal tip is not shielded, and a second position wherein the tip is within the inner and outer members and the free ends of the arms are brought into close proximity such that the distal tip is shielded. The inner member is entirely received within the outer member in both the fort and the second positions thereof.Type: ApplicationFiled: December 19, 2016Publication date: April 6, 2017Applicant: Smiths Medical ASD, Inc.Inventors: Thomas T. Koehler, Kathryn L. Felicito, Harsh Chheda, Oscar R. Abriles
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Publication number: 20170095620Abstract: A tip protector for a safety catheter includes an outer member releasably engaged with the interior cavity of the catheter hub. The outer member includes a generally fixed radially outwardly projecting portion to provide a holding force, and an inner member axially shiftably received within the outer member. A needle cannula received in the inner and outer members is operable to axially shift the inner member between a distal position wherein the distal tip extends distally of the tip protector, and a proximal position wherein the distal tip is within the outer member. The holding force of the outer member to the interior wall of the catheter hub remains substantially constant irrespective of the position of the inner member between the distal and proximal positions.Type: ApplicationFiled: December 19, 2016Publication date: April 6, 2017Applicant: Smiths Medical ASD, Inc.Inventors: Thomas T. Koehler, Gerard Libby
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Patent number: 9555220Abstract: A safety catheter includes a catheter hub, a needle cannula having a tip, and a tip protector. The tip protector includes an outer member and an inner member therein. The outer member has a projection releasably engaging the catheter hub. The inner member has a pair of arms extending to free ends from a base. The inner member is axially shiftable relative to the outer member between a first position wherein the needle tip is distal of the tip protector and the free ends of the arms are spread apart such that the distal tip is not shielded, and a second position wherein the tip is within the inner and outer members and the free ends of the arms are brought into close proximity such that the distal tip is shielded. The inner member is entirely received within the outer member in both the fort and the second positions thereof.Type: GrantFiled: August 1, 2012Date of Patent: January 31, 2017Assignee: SMITHS MEDICAL ASD, INC.Inventors: Thomas T. Koehler, Kathryn L. Felicito, Harsh Chheda, Oscar R. Abriles