US 5,469,964 A · Multiple syringe unsheathing and resheathing device

Abstract

A device for unsheathing and resheathing multiple syringe needles is disclosed. The syringe has a needle and a removable sheath covering the needle. The sheath has a predetermined cross sectional dimension. The device has a housing having a plurality of sheath retaining bores and a rotatable shaft extending through the housing. A plurality of paired opposed locking members extend about the shaft and are located so as to straddle a sheath placed into the sheath retaining bore. At least one of the locking members is angled with respect to the other such that the distance therebetween is less than the cross sectional dimension of the sheath at a first position and greater than the cross sectional dimension of the sheath at a second position. Preferably, each locking member is in the shape of an ellipsis. In operation, a sheathed needle is inserted into a sheath retaining bore in the housing and is positioned between opposed locking members. Rotation of the shaft moves the opposed locking members between the first position so as to grip or engage the sheath, and the second position so as to release or disengage the sheath. When the sheath is engaged, a user may apply a force to the syringe and remove the needle from the sheath or reinsert the needle into the sheath.

Claims10

Dependent claims

A needle sheath gripping device for use with a syringe having a needle and a removable sheath covering the needle, the sheath having a predetermined cross sectional dimension, the device comprising:

a housing having at least one sheath retaining bore for removably housing a sheath;
and
a rotatable shaft extending through the housing, the shaft comprising a first end and a second end, and at least one pair of opposed locking members extending at least partially about the shaft and located so as to straddle a sheath placed in the sheath retaining bore, at least one of the locking members being angled with respect to the other such that the distance therebetween is less than the cross sectional dimension of the sheath at a first rotational position and greater than the cross sectional dimension of the sheath at a second rotational position,
wherein when a sheath is inserted into the bore in the housing and is positioned between a pair of opposed locking members, rotation of the shaft moves the opposed locking members between the first position and second position so as to either grip or release the sheath.

1 more element

Dependencies are inferred from the claim text.

Multiple syringe unsheathing and resheathing device

Life of this patent

Multiple syringe unsheathing and resheathing device

Life of this patent

Abstract

Claims10