Texas Applied Biomedical Services, Inc.

Martha J Tripp

Joseph J Janecka, Jr

Brent W Murray

M Joyce Heinrich

A disposable medical collection tube holder assembly with retractable needle is disclosed. The spent needle, or other similar medical device, affixed to the holder may be safely encapsulated and disposed by a simple, one handed operation, and, both the needle and the holder are rendered useless for any subsequent operation. The invention is comprised of two parts, a collection tube holder and an evacuated accessory fitted with an air release/vacuum seal mechanism that readily permits the introduction of the vacuum into the hollow chamber of the accessory. When using the collection tube holder in the standard manner, and after the collection of the blood or other bodily fluids is complete, the collection test tube is withdrawn from the holder and then the needle withdrawn from the vein. The accessory, a tubular member with an evacuated interior, is inserted into the collection tube holder fully, and longitudinally axial force is applied to the proximal (thumb) end of the evacuated accessory. This causes a sequence of events that results in encapsulation of the spent needle within the interior of the accessory. The entire assembly may now be safely disposed.

Disposable medical collection tube holder with retractable needle

A disposable medical syringe apparatus with retractable needle is disclosed. The spent needle, or other similar medical sharps device, affixed to a detachable needle hub on the syringe barrel may be safely encapsulated and disposed by a simple, one handed operation, and, both the needle and the syringe apparatus are rendered useless for any subsequent operation. The invention is comprised of two parts, a syringe barrel fitted with a detachable needle hub and an evacuated plunger fitted with a combination catch ring/air release/vacuum seal mechanism that readily permits the introduction of the vacuum into the hollow chamber of the plunger. The syringe apparatus is used in the standard manner for an injection of medicinal liquid or for the collection of blood or other body fluids. When use is complete, continued longitudinal axial force is applied to the distal (thumb) end of the evacuated plunger. The catch ring on the combination part within the proximal end of the evacuated plunger captures the detachable needle hub in the syringe barrel body. Continued longitudinal axial force causes a release ring holding the detachable needle hub within the syringe barrel to advance into an annular channel thereby releasing the detachable needle hub and needle from the syringe barrel. Continued longitudinal axial force releases a retaining ring from the combination part. This allows atmospheric pressure to act on the combination part and to cause the combination part, detachable needle hub and needle to withdraw into the interior of the plunger. The entire device may now be safely disposed.

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Houston, TX, United States of America

Martha J Tripp