Becton Dickinson and Company Limited

Craig D Newman

Tieming Ruan

Stephen Lynn Richards

Robert W Pierce

Neil Jolly

Vadim Goykhman

Simon Cohn

Michael Vincent Quinn

Eliot Zaiken

Joseph Alu

Glade Harold Howell

Charles George Hwang

Noel Gharibian

Paul Di Cesare

Jon D Swenson

Michael J Carter

Richard A Flowers

Ann C Eckert

A safety needle assembly, including a hub; a needle fixed to the hub, the needle having a distal end and a proximal end; first and second shields, each having a tubular body at least partially encircling a portion of the needle, wherein in an initial state, the first shield extends from the hub; a biasing element disposed to urge the second shield distally toward the distal end of the needle; and a releasable retaining arrangement for releasably retaining the second shield in a first state. Upon a predetermined extent of proximal movement of the first shield relative to the hub, the second shield is released, thereby allowing the biasing element to urge the second shield to a second state in which the distal end of the needle is covered.

Safety needle assembly

A safety needle assembly is provided herein which includes a hub; a needle fixed to the hub; a first shield having a tubular body at least partially encircling a portion of the needle, wherein in an initial state, the first shield extends from the hub; a second shield having a tubular body at least partially encircling a portion of the needle; a biasing element disposed to urge the second shield distally towards a distal end of the needle; and, a releasable retaining arrangement for releasably retaining the second shield in a first state. Upon a predetermined extent of proximal movement of the first shield relative to the hub, the second shield is released to a second state in which the distal end of the needle is covered. Advantageously, two shields are provided for at least partially covering a needle with one of the shields acting as a trigger.

A safety pen needle assembly is provided herein which includes a hub and a needle fixed to the hub. Further, a first shield is provided, along with a second shield which has a biasing element disposed to urge the second shield proximally towards a proximal end of the needle. The assembly further includes a releasable retaining assembly for releasably retaining the second shield in an initial position against the force of the biasing element. A predetermined extent of movement of the first shield causes the retaining assembly to release the second shield. With the second shield being released, the second shield is urged proximally by the biasing element to a second position where the second shield covers the proximal end of the needle. Advantageously, an assembly is provided which allows for passive activation of a shield on a non-patient end of a pen needle assembly by a patient-end shield.

Safety pen needle assembly having shielding for patient and non-patient ends

A safety pen needle assembly is provided herein which includes a hub and a needle fixed to the hub. Further, a first shield is provided, along with a second shield which has a biasing element disposed to urge the second shield proximally towards a proximal end of the needle. The assembly further includes a releasable retaining assembly for releasably retaining the second shield in an initial position against the force of the biasing element. A predetermined extent of movement of the first shield causes the retaining assembly to release the second shield, and, wherein, with the second shield being released, the second shield is urged proximally by the biasing element to a second position where the second shield covers the proximal end of the needle. Advantageously, with the subject invention, an assembly is provided which allows for passive activation of a shield on a non-patient end of a pen needle assembly by a patient-end shield.

A shielded surgical scalpel includes an elongate handle defining a longitudinal axis and having a proximal portion and a distal portion. A blade is fixedly attached to the handle. A shield is mounted onto the handle. The shield is movable between a distal position where the shield prevents inadvertent access to the blade and a proximal position where the shield exposes the blade for use.

Shielded surgical scalpel

A scalpel of the present invention includes an elongate handle defining a longitudinal axis and having a proximal end and a distal end. The scalpel of the invention further includes a cartridge that is removably mounted to the handle. The cartridge has blade holder with a proximal end and a distal end with a blade fixedly attached that is disposed so that the blade projects distally outwardly when the cartridge is mounted to the handle. The cartridge also includes a shield that is slidably mounted onto the blade holder for movement between a distal position where the shield substantially prevents inadvertent access to the blade and a proximal position where the shield substantially surrounds a portion of the handle and the blade is exposed for use. The cartridge is releasably mountable on the handle. The shield is substantially prevented from movement to the proximal position unless the cartridge is mounted on the handle and not dismountable from the handle unless the shield is in the distal position.

Surgical scalpel

This invention relates to an improved guarded surgical scalpel having a movable guard that can be retracted to expose the blade and that can be extended to cover the sharp cutting edge of the blade. The guard is telescopically mounted inside the blade handle and includes a deflectable top wall portion that holds a detent pin or that defines a radially extending flange. This detent pin or flange engages a slot having upturned ends formed in at least one side wall of the blade handle. The detent pin or flange is biased upwardly into the upturned ends of the slot to hold the guard in the retracted or extended position. The blade can include a tang having a notch formed therein. The distal end of one sidewall of the guard can be formed with a complementary notch such that when the distal end of the sidewall of the guard engages the proximal end of the blade, forward movement of the guard forces the blade off of the scalpel. A lifter wedge is provided to urge the proximal end of the blade away from a blade carrier into engagement with the distal end of the sidewall of the guard.

Guarded surgical scalpel with scalpel blade remover

This invention relates to an improved guarded surgical scalpel having a movable guard that can be retracted to expose the blade and that can be extended to cover the sharp cutting edge of the blade. The guard is telescopically mounted inside the blade handle and includes a deflectable top wall portion that holds a detent pin or that defines a radially extending flange. This detent pin or flange engages a slot having upturned ends that is formed in at least one side wall of the blade handle. The detent pin or flange is biased upwardly into the upturned ends of the slot to hold the guard in the retracted or extended position. The blade can include a tang having a notch formed therein. The distal end of one sidewall of the guard can be formed with a complementary notch such that when the distal end of the sidewall of the guard engages the proximal end of the blade, forward movement of the guard forces the blade off of the scalpel. A wedge mechanism is provided to urge the proximal end of the blade away from a blade carrier into engagement with the distal end of the sidewall of the guard.

This invention relates to an improved guarded surgical scalpel having a movable guard that can be retracted to expose the blade and that can be extended to cover the sharp cutting edge of the blade. The guard is also mounted for rotatable movement with respect to the handle. A blade carrier is mounted to the guard to allow relative longitudinal movement between the guard and the blade carrier. The blade carrier is also removably mounted to the handle. This mounting arrangement for the handle, guard and blade carrier allows the guard and blade carrier to be rotated away from the handle so the surfaces of the handle, guard and blade carrier can be exposed. This facilitates cleaning of the guarded surgical scalpel after use.

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New York, NY, United States of America

Craig D Newman