Quick disconnect locking system for securing CPR device
An autonomous mechanical CPR device is disclosed having a CPR unit attached to a free-standing support assembly. In operation, a victim is placed in the support assembly such that the CPR unit can compress the victim's chest. The CPR device is preferably portable, and it provides the recommended depth of chest compression at the recommended rate. The CPR unit has a quick disconnect locking system with an insert that fits into a lock.
1. A quick disconnect locking system for securing a compression system in a support assembly of a mechanical cardiopulmonary resuscitation device, the quick disconnect locking system comprising:
a first mount having an insert and lock, the lock defining a bore dimensioned to accept the insert,
the lock having at least one keeper positioned on an inner surface of the lock projecting into the bore, the at least one keeper having a generally triangular shape defining a first apex opposite a first base, the first base having a notch and two base vertices,
the insert having an outer surface with at least one key positioned thereon, the at least one key having a generally triangular shape defining a second apex opposite a second base, the second base dimensioned to fit within the notch, the at least one key extending outwardly from the outer surface, and the at least one key and the at least one keeper dimensioned to permit them to pass by each other,
a direction of insertion of the insert into the lock whereby the first apex and second apex are oriented toward each other thereby permitting the second apex to impact and to slide down the at least one keeper toward the first base,
the lock further including a displaceable bias plate having an undisplaced position and a displaced position, the bias plate mounted under the first base, and having an inner surface to engage the insert, a first distance between the inner surface of the bias plate in the undisplaced position and the first base being less than a second distance between the second apex and the second base, and a third distance between the inner surface of the bias plate in the displaced position and the first base being greater than the second distance between the second apex and the second base,
wherein upon insertion of the insert into the lock the at least one key engages the at least one keeper, then the at least one key slides down the at least one keeper until the insert contacts and sufficiently displaces the displaceable bias plate thereby permitting the insert to be rotated such that the second base slides along the first base until the second base is forced into the notch by the bias plate.
2. The quick disconnect locking system of claim 1 wherein there are two keepers and two keys, the keepers being positioned opposite each other in the bore and the keys being positioned opposite each other on the insert.
3. The quick disconnect locking system of claim 2 wherein there are gaps between the keepers and the gaps are equal and are larger than the second base.
4. The quick disconnect locking system of claim 1 wherein the first base on either side of the notch is curved toward the first apex thereby placing the notch above the two base vertices.