Smiths Medical Asd, Inc.

Johnson & Johnson Medical Gmbh

Thomas T Koehler

Harsh D Chheda

David J Goral

Oscar R Abriles

Kathryn L Felicito

Gursel Akcay

Alan D King

Nhut M Diep

Jay T Breindel

James M Muskatello

Dennis M Bialecki

David L Bogert

Zino Altman

Gerard Libby

David L Goral

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.

Safety catheter with passive release

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.

Tip protector for a safety catheter

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.

IV catheter with vein entry indication

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.

Constant force hold tip protector for a safety catheter

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.

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.

Enclosed needle cannula device with proximal end cap

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

Sealing catheter hub attachment

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 ().

Enclosed needle device with duckbill release mechanism

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.

Growing community of inventors

Simsbury, CT, United States of America

Thomas T Koehler