Thomas Dewolfe Koehler

US Patent:

7658725, Feb 9, 2010

Filed:

Feb 16, 2006

Appl. No.:

11/276152

Inventors:

Dennis M Bialecki - Oxford CT, US
Nhut M Diep - Hartford CT, US
Alan D King - Burlington CT, US
Thomas T Koehler - Simsbury CT, US

Assignee:

Smiths Medical ASD, Inc. - Rockland MA

International Classification:

A61M 5/178

US Classification:

60416408

Abstract:

An enclosed needle catheter insertion device () includes a catheter () and a needle insertion device () which are held together by cooperating arms () with one or more detents () cooperating with a radially projecting surface () of the catheter hub (). Insertion device () includes a guard housing () to enclose a needle () in a shielded position and a support housing () supporting the needle () for movement between a ready position, with the tip () of the needle () exposed, to the shielded position. Cooperating lock elements () are provided for the housings () which are positioned to define a lock actuation stage between the ready and shielded positions, whereat the needle is still within a passageway () defined by the cooperating arms ().

US Patent:

7736337, Jun 15, 2010

Filed:

Feb 16, 2006

Appl. No.:

11/276155

Inventors:

Nhut M Diep - Hartford CT, US
David J Goral - Brookfield CT, US
Alan D King - Burlington CT, US
Thomas T Koehler - Simsbury CT, US

Assignee:

Smiths Medical, ASD, Inc. - Rockland MA

International Classification:

A61M 5/00

US Classification:

60416401

Abstract:

A generally rigid molded plastic catheter hub attachment () includes one or more co-molded elastomeric gaskets ().

US Patent:

7736342, Jun 15, 2010

Filed:

May 30, 2007

Appl. No.:

11/755200

Inventors:

Oscar R. Abriles - Madison CT, US
Thomas T. Koehler - Simsbury CT, US

Assignee:

Smiths Medical ASD, Inc. - Rockland MA

International Classification:

A61M 5/32

US Classification:

604192, 604162

Abstract:

An enclosed needle catheter insertion device includes a catheter assembly and a need insertion device having a needle guard housing to enclose a needle in a shielded position and a needle support supporting the needle for movement between a ready position, with the tip of the needle exposed, to a shielded position with the needle within the needle guard housing. Movement of the needle support and the needle relative to the needle guard housing is accomplished by manual manipulation of a gripping component external of the needle guard housing. A separate, proximal end cap external of the needle guard housing encloses a proximal portion of the needle guard housing, and is affixed to the needle support.

US Patent:

8257322, Sep 4, 2012

Filed:

Jun 2, 2010

Appl. No.:

12/792290

Inventors:

Thomas T. Koehler - Simsbury CT, US
Kathryn L. Felicito - Rocky Hill CT, US
Harsh Chheda - Cheshire CT, US
Oscar R. Abriles - Madison CT, US

Assignee:

Smiths Medical ASD, Inc. - Rockland MA

International Classification:

A61M 25/00

US Classification:

604263

Abstract:

A safety catheter includes a catheter hub, a catheter tube, a needle hub, a needle cannula having a tip, and a tip protector. The tip protector includes an outer member having a flexible tab configured to releasably engage with the catheter hub and release therefrom upon inward flexing of the tab. An inner member is positioned entirely within the outer member and has a portion that impedes inward flexing of the tab when disposed adjacent the tab. 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 inner member portion is disposed adjacent the tab to impede release from the catheter hub, and a second position wherein the tip is within the outer member and the inner member portion is no longer adjacent the tab and no longer impedes release from the catheter hub.

US Patent:

20120296282, Nov 22, 2012

Filed:

Aug 1, 2012

Appl. No.:

13/564396

Inventors:

Thomas T. Koehler - Simsbury CT, US
Kathryn L. Felicito - Rocky Hill CT, US
Harsh Chheda - Cheshire CT, US
Oscar R. Abriles - Madison CT, US

Assignee:

SMITHS MEDICAL ASD, INC. - Rockland MA

International Classification:

A61M 25/06

US Classification:

60416408

Abstract:

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.

US Patent:

58003991, Sep 1, 1998

Filed:

Aug 27, 1996

Appl. No.:

8/703706

Inventors:

David L. Bogert - Plainville CT
Zino Altman - Unionville CT
Thomas Koehler - Simsbury CT

Assignee:

Johnson & Johnson Medical, Inc. - Arlington TX

International Classification:

A61M 5178

US Classification:

604165

Abstract:

Intravenous catheter insertion devices produced by a low cost method of assembling a catheter structure and cannula holder body. Also disclosed is an extruded cannula and blood chamber securement structure. Moreover, there is also provided a novel structure for the realization of simplified extruded catheter insertion devices in which an extruded plastic element is connected with a steel cannula for attachment to a blood chamber or housing to enable a low cost construction rendering the catheter insertion device simple and inexpensive in assembly and construction for economically disposable single usage thereof.

US Patent:

20210100985, Apr 8, 2021

Filed:

Jan 31, 2019

Appl. No.:

15/733439

Inventors:

- Plymouth MN, US
Jay T. Breindel - Branford CT, US
Harsh D. Chheda - Cheshire CT, US
Kathryn Felicito - Cheshire CT, US
David J. Goral - Brookfield CT, US
Thomas T. Koehler - Simsbury CT, US
Christopher Roehl - New Hartford CT, US

International Classification:

A61M 25/06
A61M 25/00
A61M 39/22

Abstract:

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.

US Patent:

20200121895, Apr 23, 2020

Filed:

Dec 17, 2019

Appl. No.:

16/717063

Inventors:

- Plymouth MN, US
Harsh D. Chheda - Cheshire CT, US
David J. Goral - Brookfield CT, US
Thomas T. Koehler - Simsbury CT, US

Assignee:

SMITHS MEDICAL ASD, INC. - Plymouth MN

International Classification:

A61M 25/06

Abstract:

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.