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Special Section Technical Briefs

The SATA, A Simple, Stiff, and Rigid Steering Mechanism1

[+] Author and Article Information
Tim Horeman, Milton Aguirre, Jr.

Department of Mechanical Engineering,
Delft University of Technology,
Mekelweg 2,
Delft 2628 CD, The Netherlands

G. M. M. J. Kerkhoffs

Department of Orthopedic Surgery,
Academic Medical Centre,
Meibergdreef 9,
Amsterdam 1105 AZ, The Netherlands

J. Dankelman

Department of Mechanical Engineering,
Mekelweg 2,
Delft University of Technology,
Delft 2628 CD, The Netherlands

G. M. J. Tuijthof

Department of Mechanical Engineering,
Mekelweg 2,
Delft University of Technology,
Delft 2628 CD, The Netherlands
Department of Orthopedic Surgery,
Academic Medical Centre,
Meibergdreef 9,
Amsterdam 1105 AZ, The Netherlands

Accepted and presented at The Design of Medical Devices Conference (DMD2015), April 13–16, 2015, Minneapolis, MN, USA.

Manuscript received March 3, 2015; final manuscript received March 17, 2015; published online July 16, 2015. Editor: Arthur Erdman.

J. Med. Devices 9(3), 030933 (Sep 01, 2015) (2 pages) Paper No: MED-15-1089; doi: 10.1115/1.4030564 History: Received March 03, 2015; Revised March 17, 2015; Online July 16, 2015

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References

Sisk, T. D., 1987, “Arthroscopy of Knee and Ankle,” Campbell’s Operative Orthopedics, Mosby, St. Louis, MO, pp. 2547–2608.
Scott, W. N., Insall, J. N., and Kelly, M. A., 1993, “Arthroscopy and Meniscectomy: Surgical Approaches, Anatomy and Techniques,” Surgery of the Knee, Churchill Livingstone, New York, pp. 165–216.
Berguer, R., Forkey, D. L., and Smith, W. D., 1999, “Ergonomic Problems Associated With Laparoscopic Surgery,” Surg. Endoscopy, 13(5), pp. 466–468. [CrossRef]
Nai, T. Y., Herder, J. L., and Tuijthof, G. J., 2011, “Steerable Mechanical Joint for High Load Transmission in Minimally Invasive Instruments,” ASME J. Med. Devices, 5(3), p. 034503. [CrossRef]

Figures

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Fig. 1

Posterior view of right knee. (Top) Surgeons use a punch and scope to repair defects in the menisci. (Below right) common lesions of the menisci. (Below left) Side view of an intentionally prebent punch shafts.

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Fig. 2

(Top) rotating the outer tube results in articulation of the hinge (A) at the tip, since the diagonal cut-outs (B) in the outer tube forces the sliders to move in axial direction. (Middle) To prevent axial rotation of the tip the longitudinal cut-outs (C) in the inner tube prevents axial rotation of the sliders. (Below) View on the inner sliders show that there are no cables used for hinge activation. Only the force exerted by the cut-outs on the driving pins (D) actuates the sliders.

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Fig. 3

Picture of the SATA_V1 prototype with tip actuation handle (A) and wheel (B) for sideways tip rotation

Grahic Jump Location
Fig. 4

Steerable punch dismantled into tip assembly, outer tube with wheel and handle. Opening of the hinge results in better access to all openings for cleaning and inspection.

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