Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure

Siyang Zuo; Ken Masamune; Kenta Kuwana; Morimasa Tomikawa; Satoshi Ieiri; Takeshi Ohdaira; Makoto Hashizume; Takeyoshi Dohi

doi:10.1007/978-3-642-23623-5_22

Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure

Siyang Zuo, Ken Masamune, Kenta Kuwana, Morimasa Tomikawa, Satoshi Ieiri, Takeshi Ohdaira, Makoto Hashizume, Takeyoshi Dohi

Advanced Medical Intiatives

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

11 Citations (Scopus)

Abstract

Single port access (SPA) surgery is a laparoscopic procedure using only one transumbilical-placed port. Natural orifice transluminal endoscopic surgery (NOTES) offers the possibility of surgery without visible scars. To address the access and stability problems in SPA and NOTES, we developed a device called rigid-flexible outer sheath. This sheath can be switched between flexible and rigid modes by a novel pneumatic shapelocking mechanism, and it has a double curvature structure that enables it to flex in four directions at the distal end and three directions on the rigid-flexible shaft. The insertion part of the prototype is 300 mm long with a 20 mm outer diameter, and the part is equipped with four working channels. In vivo experiments using a swine show that the outer sheath has high potential for solving access and stability problems. We expect that the outer sheath will be useful for SPA and NOTES.

Original language	English
Title of host publication	Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011 - 14th International Conference, Proceedings
Pages	169-177
Number of pages	9
Edition	PART 1
DOIs	https://doi.org/10.1007/978-3-642-23623-5_22
Publication status	Published - 2011
Event	14th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2011 - Toronto, ON, Canada Duration: Sept 18 2011 → Sept 22 2011

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Number	PART 1
Volume	6891 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Other

Other	14th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2011
Country/Territory	Canada
City	Toronto, ON
Period	9/18/11 → 9/22/11

All Science Journal Classification (ASJC) codes

Theoretical Computer Science
General Computer Science

Access to Document

10.1007/978-3-642-23623-5_22

Cite this

Zuo, S., Masamune, K., Kuwana, K., Tomikawa, M., Ieiri, S., Ohdaira, T., Hashizume, M., & Dohi, T. (2011). Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure. In Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011 - 14th International Conference, Proceedings (PART 1 ed., pp. 169-177). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 6891 LNCS, No. PART 1). https://doi.org/10.1007/978-3-642-23623-5_22

Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure. / Zuo, Siyang; Masamune, Ken; Kuwana, Kenta et al.
Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011 - 14th International Conference, Proceedings. PART 1. ed. 2011. p. 169-177 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 6891 LNCS, No. PART 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zuo, S, Masamune, K, Kuwana, K, Tomikawa, M, Ieiri, S, Ohdaira, T, Hashizume, M & Dohi, T 2011, Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure. in Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011 - 14th International Conference, Proceedings. PART 1 edn, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), no. PART 1, vol. 6891 LNCS, pp. 169-177, 14th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2011, Toronto, ON, Canada, 9/18/11. https://doi.org/10.1007/978-3-642-23623-5_22

Zuo S, Masamune K, Kuwana K, Tomikawa M, Ieiri S, Ohdaira T et al. Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure. In Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011 - 14th International Conference, Proceedings. PART 1 ed. 2011. p. 169-177. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); PART 1). doi: 10.1007/978-3-642-23623-5_22

Zuo, Siyang ; Masamune, Ken ; Kuwana, Kenta et al. / Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure. Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011 - 14th International Conference, Proceedings. PART 1. ed. 2011. pp. 169-177 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); PART 1).

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abstract = "Single port access (SPA) surgery is a laparoscopic procedure using only one transumbilical-placed port. Natural orifice transluminal endoscopic surgery (NOTES) offers the possibility of surgery without visible scars. To address the access and stability problems in SPA and NOTES, we developed a device called rigid-flexible outer sheath. This sheath can be switched between flexible and rigid modes by a novel pneumatic shapelocking mechanism, and it has a double curvature structure that enables it to flex in four directions at the distal end and three directions on the rigid-flexible shaft. The insertion part of the prototype is 300 mm long with a 20 mm outer diameter, and the part is equipped with four working channels. In vivo experiments using a swine show that the outer sheath has high potential for solving access and stability problems. We expect that the outer sheath will be useful for SPA and NOTES.",

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AU - Zuo, Siyang

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AU - Ieiri, Satoshi

AU - Ohdaira, Takeshi

AU - Hashizume, Makoto

AU - Dohi, Takeyoshi

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AB - Single port access (SPA) surgery is a laparoscopic procedure using only one transumbilical-placed port. Natural orifice transluminal endoscopic surgery (NOTES) offers the possibility of surgery without visible scars. To address the access and stability problems in SPA and NOTES, we developed a device called rigid-flexible outer sheath. This sheath can be switched between flexible and rigid modes by a novel pneumatic shapelocking mechanism, and it has a double curvature structure that enables it to flex in four directions at the distal end and three directions on the rigid-flexible shaft. The insertion part of the prototype is 300 mm long with a 20 mm outer diameter, and the part is equipped with four working channels. In vivo experiments using a swine show that the outer sheath has high potential for solving access and stability problems. We expect that the outer sheath will be useful for SPA and NOTES.

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Nonmetallic rigid-flexible outer sheath with pneumatic shapelocking mechanism and double curvature structure

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