SAFETY PENETRATING INSTRUMENT WITH TRIGGERED PENETRATING MEMBER RETRACTION AND SINGLE OR MULTIPLE SAFETY MEMBER PROTRUSION
 Inventor: InBae Yoon, 2101 Highland Ridge Dr., Phoenix, Md. 21131
[ * ] Notice: The term of this patent shall not extend beyond the expiration date of Pat. No. 5,431,635.
 Appl. No.: 279,170
 Filed: Jul. 22,1994
Related U.S. Application Data
 Continuation-in-part of Ser. No. 83,220, Jun. 24,1993, Pat No. 5,431,635, Ser. No. 83,728, Jun. 29, 1993, Pat No. 5,466,224, Ser. No. 115,152, Sep. 2, 1993, Pat. No. 5,578, 053, and Ser. No. 177,616, Jan. 4, 1994, said Ser. No. 83,220, and Ser. No. 83,728, each is a continuation-in-part of Ser. No. 628,899, Dec. 18,1990, Pat. No. 5,226,426, and Ser. No. 817,113, Jan. 6, 1992, Pat No. 5,350,393.
 Int CI.6 A61M 5/00
 U.S. CI 606/185; 604/165; 604/170
 Field of Search 128/751,752,
128/753, 754; 604/95, 158, 162, 163, 164, 165, 170, 272, 274, 280, 169; 606/167,
 References Cited
U.S. PATENT DOCUMENTS
Primary Examiner—Guy V. Tucker
A safety penetrating instrument for establishing a portal in a wall of an anatomical cavity includes a cannula, a penetrating member disposed within the lumen of the cannula, a safety member movable relative to the penetrating member to place the tip of the penetrating member in a protected, non-exposed state, and various mechanisms for simultaneously retracting the penetrating member while extending one or both of the cannula and safety member from locked positions wherein the penetrating member is in an extended position and the cannula and safety member are in retracted positions. Retraction of the penetrating member and extension or protrusion of either or both of the safety member and portal sleeve is triggered individually or in combination by movement of one or more of the three members upon entering the anatomical cavity. Additionally, a probe can be carried by the safety penetrating instrument for triggering retraction and/or extension of the members in a similar manner or upon moving a predetermined proximal distance during penetration of the anatomical cavity wall.
61 Claims, 17 Drawing Sheets