Abstract: An intra-aortic balloon (IAB) having an elongated member expandable within said balloon to prevent total collapse of the balloon or any portion thereof during deflation. The member preventing balloon collapse, in one preferred embodiment, is stored in the catheter tube in the collapsed state and expands when moved into the balloon. In another embodiment, the member preventing deflation is arranged within the balloon and is provided with an operating member for selectively expanding and collapsing the member provided for preventing deflation. Moving the member for preventing deflation to the collapsed state permits the profile of the balloon to be significantly reduced which aids in percutaneous insertion and in removal of the balloon.

Abstract: An interoral tube securing device which attaches to human teeth.

Abstract: A dual mode automatic injector having a dual mode safety device for preventing the release of the stressed spring assembly except when it is desired to operate the medicament injecting assembly by the stressed spring assembly. The dual mode safety device comprises a first part including a pin portion disposed in a safety position extending through a central aperture in the rear wall of the housing assembly of the injector in release preventing relation with the stressed spring assembly for removal therefrom in response to a relative rearward movement with respect to the rear wall so as to permit an actuating movement to release the stressed spring assembly. The first part includes an automatic removal portion fixed to the rearward end of the pin portion.