Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 5514076 | Surgical retractor A retractor for use in invasive surgery. The retractor includes a superelastic or shape memory alloy shaft having proximal and distal ends. A handle is attached to the proximal end, while the distal end has a shape trained into it adapted to grasp animal ... | 05/07/1996 |
| 5067489 | Flexible guide with safety tip An elongated guide for use in medical procedures is provided, the guide having a flexible metal core and a forward portion comprising an elongated, helically wound wire coil providing a flexible tip. A flexible safety wire extends forwardly within the coi... | 11/26/1991 |
| 4991602 | Flexible guide wire with safety tip A guide useful for guiding a catheter within a blood vessel is formed of a single length of shape memory alloy. The guide has a central portion of uniform diameter and substantially identical tapered end portions each terminating in enlarged diameter port... | 02/12/1991 |
| 4984581 | Flexible guide having two-way shape memory alloy A medical guide wire for insertion into body channels for accessing specific inner body areas without major surgery. The guide wire comprises an elongated, flexible guide having a core of a shape memory alloy, the guide utilizing the two-way memory proper... | 01/15/1991 |
| 4926860 | ARthroscopic instrumentation and method Arthroscopic instrumentation for use in arthroscopic surgery and similar procedures. The instrumentation includes a cannula having a curved lumen and an elongated, flexible normally straight shape memory alloy probe. The probe is insertable into the lumen... | 05/22/1990 |
