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(12) United States Patent (10) Patent No.: US 8,034,055 B2 Cragg (45) Date of Patent: *Oct

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(12) United States Patent (10) Patent No.: US 8,034,055 B2 Cragg (45) Date of Patent: *Oct US008O34055B2 (12) United States Patent (10) Patent No.: US 8,034,055 B2 Cragg (45) Date of Patent: *Oct. 11, 2011 (54) METHOD AND APPARATUS FOR (56) References Cited PROVIDING ACCESS TO APRESACRAL SPACE U.S. PATENT DOCUMENTS 1,630,239 A 5/1924 Binkley et al. (75) Inventor: Andrew H. Cragg, Edina, MN (US) 2,317,648 A 4/1943 Siqveland 2,336,338 A 12/1943 Zublin (73) Assignee: TranS1 Inc., Wilmington,- NC (US) 3,554,1923,367,326 A * 2,1/1971 1968 IsbernerFrazier ........................ 606/86. A 3,788,320 A 1/1974 Dye (*) Notice: Subject to any disclaimer, the term of this 3,892,232 A 7, 1975 Neufeld patent is extended or adjusted under 35 4,135,506 A 1, 1979 Ulrich U.S.C. 154(b) by 44 days. 4,170,990 A 10/1979 Baumgartet al. (Continued) This patent is Subject to a terminal dis claimer. FOREIGN PATENT DOCUMENTS 21) Appl. No.: 12/473.999 DE 91 08 043 10, 1991 (21) Appl. No.: 9 (Continued) (22) Filed: May 28, 2009 OTHER PUBLICATIONS O O B. Jeanneret, et al., “Posterior Stabilization in L5-S1 Isthmic (65) Prior Publication Data Spondylolisthesis with Paralaminar Screw Fixation: Anatomical and US 2009/O234399 A1 Sep. 17, 2009 Clinical Results.” Journal of Spinal Disorders, vol. 9, No. 3, pp. 223-233 (1996) Lippincott-Raven Publishers, Philadelphia. Related U.S. Application Data (Continued) (63) Continuation of application No. 1 1/462.934, filed on Primary Examiner – Pedro Philogene Aug. 7, 2006, now Pat. No. 7,641,657, which is a (74) Attorney, Agent, or Firm — Knobbe Martens Olson & continuation of application No. 10/459,149, filed on Bear, LLP Jun. 10, 2003, now Pat. No. 7,087,058, which is a continuation of application No. 09/640.222, filed on (57) ABSTRACT Aug. 16, 2000, now Pat. No. 6,575,979. Methods and apparatus for providing percutaneous access to the presacral space in a minimally invasive, low trauma, man (60) Provisional application No. 60/182,748, filed on Feb. ner. A number of related methods and Surgical tool sets form 16, 2000. a percutaneous pathway from an incision through the patient’s skin adjacent to the coccyx and inserting an elon (51) Int. Cl. gated guide assembly through the incision to locate the guide A6 IF 2/46 (2006.01) assembly against the anterior Surface of the sacrum to access (52) U.S. Cl. ...................................... 606/86 R. 606/108 a presacral target point. The provision of the percutaneous (58) Field of Classification Search 606/79 pathway described herein allows for the introduction of thera 606/80, 86 A, 86 R, 247, 279, 108: 128/898: peutic devices or media, diagnostic instruments, and/or drug 604/181, 28, 186 delivery to the presacral space. 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