Abstract: A fluid displacement and pressurization device which provides both a substantial amount of thread engagement as well as provides for single hand control for all operational manipulations including maintaining a set fill volume, rapid filling and displacement, and pressurization and retention of evacuation positioning during balloon depressurization. The device allows for the use of one hand to not only transition the device from micro-movement control to macro-movement control, but also regarding rotating, pushing or pulling the handle of the plunger.

Abstract: A fluid displacement and pressurization device which provides both a substantial amount of thread engagement as well as provides for single hand control for all operational manipulations including maintaining a set fill volume, rapid filling and displacement, and pressurization and retention of evacuation positioning during balloon depressurization. The device allows for the use of one hand to not only transition the device from micro-movement control to macro-movement control, but also regarding rotating, pushing or pulling the handle of the plunger.

Abstract: A needle depth stop which is side loading and configured to accommodate a wide range of needle diameters. The needle depth stop includes jaws which are biased closed and indexed into place by a spring member, such as a “C” ring. However, the jaws can be pivoted open for receiving a needle by pinching together two finger grip portions, the opening force deceasing at a decreasing rate as a result of the pivot translating toward the springs load center. The needle depth stop preferably provides approximately one pound of resistance to longitudinal displacement along the needle, and only one hand is required to position and lock the needle depth stop into place. In order to accommodate a wide range of needle diameters, the jaws include a plurality of grooves, each configured to accommodate a different range of needle diameters.

Abstract: A needle counter device which includes a latch mechanism for securing the device in a closed condition. The latch mechanism preferably consists of a latch member which is integrated into the edge of a lid of the device and which is configured to be received in a corresponding hole or aperture in a base of the device, as this arrangement simplifies manufacturing, as well as increases resistance to deflection and spreads the opening load (i.e., the load used to unlatch the latch mechanism) into a whole side of the part instead of having the load be concentrated at a narrow portion. This latch mechanism can be implemented in connection with a needle counter device as described above, wherein the needle counter device utilizes an adhesive disposed in one or more troughs. Alternatively, the latch mechanism can be implemented in connection with a more conventional needle counter device, such as one which does not include an adhesive disposed in one or more troughs.

Abstract: A needle counter device which utilizes an adhesive disposed in one or more, preferably V-shaped, troughs. The adhesive provides instant, strong grip upon contact, but also provides very low resistance to needle penetration (i.e., it is easy to stick a needle in the adhesive, but difficult to pull the needle out). The device includes a base and a lid, and opens and closes much like a book. Once the device is closed, the device tends to remain closed unless intentionally opened. A thin layer of adhesive may be provided on the inside of the lid, to retain used surgical blades, and a piece of resilient foam may also be provided for temporarily “parking” a suture needle. The sides of each trough are lined with structure which serves to prevent an accidentally laid surgical instrument from unintentionally contacting the adhesive. Numerical indices provide a quick visual, counting assist.

Abstract: Apparatus for retaining concentric parts within one another and enabling limited axial movement therebetween, includes an inner component having a shoulder disposed in an external perimeter thereof and an outer tubular component having a wall and an open end for receiving the inner component and an inner surface for abutting the shoulder and enabling a sliding interface therebetween. A retaining tab is provided and disposed in the wall proximate the open end for depression of a free end toward the wall and a slot formed in the wall beneath the tab enables the free end to be forced therepast for retaining the free end inside the wall for engagement with the shoulder, thus preventing separation of the inner component from the outer component.