Othmar Wess, PhD
Physicist, since 1979 working in the field of medical shock wave application. Experienced in basic research in shock wave generation and focusing, product development and marketing at STORZ MEDICAL. Since 2010 consultant.
8574 Oberhofen, Switzerland

Alavi Tamaddoni H. et al, 2019: Enhanced shockwave lithotripsy with active cavitation mitigation

Alavi Tamaddoni H, Roberts WW, Hall TL.
Department of Biomedical Engineering, University of Michigan, 2131 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA.
Department of Urology, University of Michigan, 4444 Medical Science Building 1, 1301 Catherine Street, Ann Arbor, Michigan 48109, USA.
Department of Biomedical Engineering, University of Michigan, 2107 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA.

Continue reading
0
  613 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Diverse publications confirm lower shock rates of 30-60 SW/min are more efficient than higher rates of 90-120 SW/min. Since shock ... Read More
Saturday, April 11 2020 08:30
613 Hits
1 Comment

Mucong L. et al., 2019: Simultaneous Photoacoustic Imaging and Cavitation Mapping in Shockwave Lithotripsy

Li M, Lan B, Sankin G, Zhou Y, Liu W, Xia J, Wang D, Trahey G, Zhong P, Yao J.

Continue reading
0
  1377 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Shock wave lithotripsy is a non-invasive and gentle treatment procedure for kidney stones. Nevertheless, mild haematuria up to sev... Read More
Friday, December 27 2019 08:00
1377 Hits
1 Comment

S. Cao et al., 2019: Shock-Induced Damage and Dynamic Fracture in Cylindrical Bodies Submerged in Liquid

Cao S, Zhang Y, Liao D, Zhong P, Wang KG.
Department of Aerospace and Ocean Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States.
Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 90271, United States

Continue reading
0
  2101 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This is another paper investigating the mechanism of fragmentation of brittle material, such as kidney stones, by shock waves. Und... Read More
Tuesday, December 17 2019 08:15
2101 Hits
1 Comment

Fovargue D. et al., 2019: An experimentally-calibrated damage mechanics model for stone fracture in shock wave lithotripsy

Daniel Fovargue, Sorin Mitran, Georgy Sankin, Ying Zhang, Pei Zhong
Department of Mathematics, University of North Carolina, Chapel Hill, North Carolina.
Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina.

Continue reading
0
  2984 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Almost 40 years after the first extracorporeal shock wave lithotripsy in humans, the fracture mechanism is still under debate. The... Read More
Tuesday, May 28 2019 08:31
2984 Hits
1 Comment

Wess O et al., 2018: Fragmentation of brittle material by shock wave lithotripsy. Momentum transfer and inertia: a novel view on fragmentation mechanisms

Othmar J. Wess, Juergen Mayer
Storz Medical AG, Lohstampfestrasse 8, 8274, Taegerwilen, Switzerland.

Continue reading
0
  3653 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Understanding the mechanism of shock wave fragmentation is of essential relevance for the design of a shock wave lithotripter. Saf... Read More
Monday, April 15 2019 08:40
3653 Hits
1 Comment

Li G et al, 2017: Evaluation of an experimental electrohydraulic discharge device for extracorporeal shock wave lithotripsy: Pressure field of sparker array.

Li G, Connors BA, Schaefer RB, Gallagher JJ, Evan AP.
School of Physics, Northeast Normal University, Changchun, 130024, People's Republic of China.
Department of Anatomy and Cell Biology, Indiana University School of Medicine, Medical Science Building, Room 0051, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA.
Phoenix Science and Technology, C/O John Gallagher, 12 Van Buren Circle, Goffstown, New Hampshire 03045, USA.
Phoenix Science and Technology, 12 Van Buren Circle, Goffstown, New Hampshire 03045, USA.

Continue reading
0
  6634 Hits
  1 Comment
Recent comment in this post
Othmar Wess
The myth is alive! The legendary glory of the original HM3-Lithotripter outshines all succeeding lithotripter developments since i... Read More
Thursday, May 03 2018 08:03
6634 Hits
1 Comment

Hoy NY et al, 2016: Are We Banging Our Heads Against the Wall? The Effect of Treatment Head Wear on the Outcomes of Extracorporeal Shockwave Lithotripsy.

Hoy NY, Shapka L, Rudzinski J, Schuler TD, Wollin TA, Bochinski D, De SK.
Division of Urology, University of Alberta , Edmonton, Canada.

Continue reading
0
  7242 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Comment currently not available.
Tuesday, June 20 2017 07:26
7242 Hits
1 Comment

Ohl SW et al, 2016: Lithotripter shock wave interaction with a bubble near various biomaterials.

Ohl SW, Klaseboer E, Szeri AJ, Khoo BC.
Institute of High Performance Computing, 1 Fusionopolis Way #16-16 Connexis, 138632, Singapore.

Continue reading
0
  7389 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Cavitation bubbles are considered playing an important role in shockwave lithotripsy. In vitro experiments show that bubbles colla... Read More
Tuesday, June 13 2017 07:09
7389 Hits
1 Comment

Wang KG, 2016: Multiphase Fluid-Solid Coupled Analysis of Shock-Bubble-Stone Interaction in Shockwave Lithotripsy.

Wang KG
Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, 24061, VA, USA.

Continue reading
0
  6788 Hits
  1 Comment
Recent comment in this post
Othmar Wess
The title of the paper indicates a direct impact on shockwave lithotripsy. Since cavitation and shockwave interaction with bubbles... Read More
Monday, April 10 2017 10:25
6788 Hits
1 Comment

Ghorbani M et al, 2016: Review on Lithotripsy and Cavitation in Urinary Stone Therapy

Ghorbani M, Oral O, Ekici S, Gozuacik D, Kosar A.

Continue reading
0
  7197 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This is a comprehensive review for all being interested in shock wave lithotripsy and the role of cavitation in urinary stone frag... Read More
Friday, March 10 2017 14:19
7197 Hits
1 Comment

Zhang Y et al, 2016: Effects of Stone Size on the Comminution Process and Efficiency in Shock Wave Lithotripsy.

Zhang Y, Nault I, Mitran S, Iversen ES, Zhong P.
Department of Mathematics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Department of Statistical Science, Duke University, Durham, North Carolina, USA.
Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina, USA.

Continue reading
0
  6745 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This is a nice proof for what has been known or assumed for long. Comminution of a certain mass of stone material is more efficien... Read More
Monday, March 06 2017 07:27
6745 Hits
1 Comment

Wang JC, Zhou Y. 2016: Shifting the Split Reflectors to Enhance Stone Fragmentation of Shock Wave Lithotripsy.

Wang JC, Zhou Y
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.

Continue reading
0
  8554 Hits
  1 Comment
Recent comment in this post
Othmar Wess
The authors start their study by the hypothesis that focal size has a decisive impact on lithotripsy performance. They follow the ... Read More
Tuesday, November 01 2016 12:59
8554 Hits
1 Comment

Duryea AP et al, 2015: Removal of residual cavitation nuclei to enhance histotripsy erosion of model urinary stones.

Duryea AP, Roberts WW, Cain CA, Hall TL

Continue reading
1
  14482 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This is another paper of Duryea and co-workers being about cavitation nuclei and their impact on kidney stone treatment by histotr... Read More
Monday, September 28 2015 07:39
14482 Hits
1 Comment

de Icaza-Herrera M et al, 2015: Combined short and long-delay tandem shock waves to improve shock wave lithotripsy according to the Gilmore-Akulichev theory.

de Icaza-Herrera M, Fernández F, Loske AM
Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Qro. 76230, Mexico.

Continue reading
0
  18657 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Cavitation plays an important role in extracorporeal shock wave lithotripsy. To achieve high fragmentation efficiency and low tiss... Read More
Monday, June 22 2015 11:07
18657 Hits
1 Comment

Duryea AP et al, 2015: Removal of residual nuclei following a cavitation event using low-amplitude ultrasound.

Duryea AP, Cain CA, Tamaddoni HA, Roberts WW, Hall TL.

Continue reading
0
  14251 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Cavitation bubbles may occur during shock wave lithotripsy and high energy ultrasound application. They may support stone fragment... Read More
Monday, April 20 2015 10:37
14251 Hits
1 Comment

Maxwell AD et al, 2015: Fragmentation of Urinary Calculi in Vitro by Burst Wave Lithotripsy.

Maxwell AD, Cunitz BW, Kreider W, Sapozhnikov OA, Hsi RS, Harper JD, Bailey MR, Sorensen MD
Center for Industrial and Medical Ultrasound, Applied Physics Laboratory, University of Washington, Seattle, Washington;
Department of Acoustics, Physics Faculty, Moscow State University, Moscow, Russia.
Department of Urology, School of Medicine, University of Washington, Seattle, Washington

Continue reading
0
  16063 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Obviously, ultrasound seems to be a logic alternative instead of shock waves for stone fragmentation. Promising in vitro results a... Read More
Tuesday, February 10 2015 12:36
16063 Hits
1 Comment

Wang JC et al, 2014: Suppressing bubble shielding effect in shock wave lithotripsy by low intensity pulsed ultrasound.

Wang JC, Zhou Y
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore

Continue reading
0
  14416 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Gas bubbles and cavitation bubbles in particular have a significant impact on shock wave propagation. The energy of shock waves pa... Read More
Monday, December 15 2014 12:30
14416 Hits
1 Comment

Vlaisavljevich E et al, 2014: Histotripsy-induced cavitation cloud initiation thresholds in tissues of different mechanical properties

Vlaisavljevich E, Maxwell A, Warnez M, Johnsen E, Cain CA, Xu Z

Continue reading
0
  15141 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This article deals with cavitation and cavitation clouds generated by 1 MHz ultrasound pulses with respect to soft tissues oft dif... Read More
Wednesday, May 14 2014 13:01
15141 Hits
1 Comment

Rad AJ et al, 2014: Investigation on the comparability of the light spot hydrophone and the fiber optic hydrophone in lithotripter field measurements

Rad AJ, Ueberle F, Krueger K
Department Life Sciences, Hamburg University of Applied Sciences, Hamburg 21033, Germany
Department Mechanical Engineering, Helmut Schmidt University, Hamburg 22043, Germany

Continue reading
0
  15325 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This paper digs into the problems of measuring shock wave pressure profiles. Contemporary lithotripters feature extreme high press... Read More
Monday, May 12 2014 12:59
15325 Hits
1 Comment

Kang G et al, 2014: Characterization of the shock pulse-induced cavitation bubble activities recorded by an optical fiber hydrophone

Kang G, Cho SC, Coleman AJ, Choi MJ
Interdisciplinary Postgraduate Program in Biomedical Engineering, Jeju National University, 102 Jejudaehakno, Jeju-Si, Jeju Special Self-Governing Province, 690-756, Republic of Korea
KORUST Limited, B-#716,717, Keumkang Penterium IT Tower, 282 Hagui-Ro, Dongan-Gu, Anyang-Si, Gyeonggi-Do, 431-810, Republic of Korea
Medical Physics Department, Guy's and St. Thomas' National Health Service Foundation Trust, Lambeth Palace Road, London, SE1 7EH, United Kingdom
Department of Medicine, Jeju National University, 102 Jejudaehakno, Jeju-Si, Jeju Special Self-Governing Province, 690-756, Republic of Korea

Continue reading
0
  15783 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Shock wave pressure measurements by optical fibre hydrophones (FOPH) usually provide pressure signals which are well correlated wi... Read More
Monday, May 05 2014 12:56
15783 Hits
1 Comment

Neisius A et al, 2014: Improving the lens design and performance of a contemporary electromagnetic shock wave lithotripter

Neisius A, Smith NB, Sankin G, Kuntz NJ, Madden JF, Fovargue DE, Mitran S, Lipkin ME, Simmons WN, Preminger GM, Zhong P
Division of Urologic Surgery and Department of Pathology, Duke University Medical Center, Durham, NC 27710

Continue reading
0
  15304 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This is the second paper dealing with a new lens design for an electromagnetic lithotripter. See also previous review: 70. Smith ... Read More
Monday, April 28 2014 12:53
15304 Hits
1 Comment

Neisius A et al, 2014: Improving the lens design and performance of a contemporary electromagnetic shock wave lithotripter

Neisius A, Smith NB, Sankin G, Kuntz NJ, Madden JF, Fovargue DE, Mitran S, Lipkin ME, Simmons WN, Preminger GM, Zhong P
Division of Urologic Surgery and Department of Pathology, Duke University Medical Center, Durham, NC 27710

Continue reading
0
  15291 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This is the second paper dealing with a new lens design for an electromagnetic lithotripter. See also previous review: 70. Smith ... Read More
Friday, January 31 2014 14:40
15291 Hits
1 Comment

Smith NB et al, 2013: A heuristic model of stone comminution in shock wave lithotripsy

Smith NB, Zhong P
Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA

Continue reading
0
  14525 Hits
  1 Comment
Recent comment in this post
Othmar Wess
After more than 30 years the mechanism of stone fragmentation in lithotripsy is still not completely understood. Understanding bas... Read More
Tuesday, November 05 2013 14:59
14525 Hits
1 Comment

Fovargue D.E. et al, 2013: Experimentally validated multiphysics computational model of focusing and shock wave formation in an electromagnetic lithotripter

Fovargue DE, Mitran S, Smith NB, Sankin GN, Simmons WN, Zhong P
Department of Mathematics, University of North Carolina at Chapel Hill, 329 Phillips Hall, CB 3250, Chapel Hill, North Carolina 27599, USA

Continue reading
0
  14007 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Daniel Fovargue et al. developed a novel computational model to calculate the acoustic field of an electromagnetic lithotripter wi... Read More
Monday, November 04 2013 14:45
14007 Hits
1 Comment

Alibakhshi MA et al, 2013: Single-shot measurements of the acoustic field of an electrohydraulic lithotripter using a hydrophone array

Alibakhshi MA, Kracht JM, Cleveland RO, Filoux E, Ketterling JA
Department of Mechanical Engineering, Boston University, 110 Cummington Street, Boston, Massachusetts 02215, USA

Continue reading
0
  14170 Hits
  2 Comments
Recent Comments
Guest — PAT REDMAN
It was great to stumble upon this post. Thanks for the info, super helpful. I mostly use https://goo.gl/wH3MlT to merge my PDFs. I... Read More
Wednesday, January 18 2017 11:41
Othmar Wess
The extraordinary technical and medical importance of this paper is based on the type of measuring the shock wave field of an elec... Read More
Monday, September 16 2013 13:05
14170 Hits
2 Comments

Zhou Y et al, 2012: Characteristics of the secondary bubble cluster produced by an electrohydraulic shock wave lithotripter

Zhou Y, Qin J, Zhong P
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore

Continue reading
0
  20006 Hits
  1 Comment
Recent comment in this post
Othmar Wess
From a physical point of view the paper of Zhou, Qin and Zhong is very interesting since it investigates for the first time a uniq... Read More
Thursday, April 05 2012 06:28
20006 Hits
1 Comment

Cárcamo JJ et al, 2011: Raman study of the shockwave effect on collagens

Cárcamo JJ, Aliaga AE, Clavijo RE, Brañes MR, Campos-Vallette MM
Laboratory of Vibrational Spectroscopy, Faculty of Sciences, University of Chile, PO Box 653, Santiago, Chile

Continue reading
0
  14410 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Shock waves are not only used for stone fragmentation but for many different diseases such as chronic pelvic pain syndrome, chroni... Read More
Thursday, November 17 2011 00:00
14410 Hits
1 Comment

Kreider W et al, 2011: A reduced-order, single-bubble cavitation model with applications to therapeutic ultrasound

Kreider W, Crum LA, Bailey MR, Sapozhnikov OA
Center for Industrial and Medical Ultrasound, Applied Physics Laboratory, University of Washington, 1013 Northeast 40th Street, Seattle, Washington 98105, USA

Continue reading
0
  14309 Hits
  1 Comment
Recent comment in this post
Othmar Wess
This paper digs into details of bubble dynamics. Cavitation is considered an important mechanism of stone fragmentation. However, ... Read More
Tuesday, October 18 2011 08:27
14309 Hits
1 Comment

Pishchalnikov YA et al, 2011: Bubble proliferation in the cavitation field of a shock wave lithotripter

Pishchalnikov YA, Williams JC, McAteer JA
Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA

Continue reading
0
  13619 Hits
  1 Comment
Recent comment in this post
Othmar Wess
SWL at low pulse repetition frequency (PRF) (0.5 -1 Hz vs. 2 Hz or higher) turned out to be more effective in clinical routine tre... Read More
Friday, September 02 2011 15:35
13619 Hits
1 Comment

Kobayashi K et al, 2011: Shock wave-bubble interaction near soft and rigid boundaries during lithotripsy: numerical analysis by the improved ghost fluid method

Kobayashi K, Kodama T, Takahira H
Division of Mechanical and Space Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan

Continue reading
0
  13665 Hits
  1 Comment
Recent comment in this post
Othmar Wess
Cavitation is an important phenomenon in shock wave lithotripsy (SWL) and is considered a major mechanism for tissue damage as wel... Read More
Friday, August 26 2011 15:24
13665 Hits
1 Comment
STORZ MEDICAL AG
Lohstampfestrasse 8
8274 Tägerwilen
Switzerland
Tel.: +41 (0)71 677 45 45
Fax: +41 (0)71 677 45 05

www.storzmedical.com