Varian Medical Systems#Products

Varian was founded in 1948 as Varian Associates by Russell H. Varian, Sigurd F. Varian, William Webster Hansen, and Edward Ginzton to sell the Klystron, the first tube which could generate electromagnetic waves at microwave frequencies, and other electromagnetic equipment.{{cite journal |last1=Caryotakis |first1=George |title=The klystron: A microwave source of surprising range and endurance |journal=Physics of Plasmas |date=May 1998 |volume=5 |issue=5 |pages=1590–1598 |doi=10.1063/1.872826 |bibcode=1998PhPl....5.1590C |url=https://www.slac.stanford.edu/pubs/slacpubs/7500/slac-pub-7731.pdf}}{{cite web |title=Varian Medical Systems History |url=https://www.siliconvalleyhistorical.org/varian-medical-systems-history |website=Silicon Valley Historical Association |access-date=26 April 2021 |date=2008}}

By 1999, Varian Associates had branched into semiconductor, vacuum tube, and medical device fields. On April 2, 1999, these divisions split to become Varian Semiconductor, Varian, Inc., and Varian Medical Systems.{{cite news |title=Varian Semiconductor Separates From its Parent |url=https://techmonitor.ai/technology/varian_semiconductor_separates_from_its_parent |work=Computer Business Review |publisher=Tech Monitor |date=11 April 1999}}{{cite web |title=Varian Associates Completes Reorganization Into Three Independent, Public Companies |url=https://www.varian.com/en-gb/node/6737 |publisher=Varian |access-date=26 April 2021 |language=en-gb |date=31 March 1999}}

In August 2020, Siemens Healthineers announced plans to acquire Varian Medical Systems in an all-stock deal valued at $16.4 billion.{{Cite news|url=https://finance.yahoo.com/news/siemens-healthineers-snap-varian-medical-155449650.html|title=Siemens Healthineers AG (SEMHF) announced on Sunday that it plans to acquire U.S. cancer device and software company Varian Medical Systems (VAR) in an all-stock deal valued at $16.4 billion.|date=2020-08-02|access-date=2020-08-03}}{{cite news |last1=Zeberl |first1=Bernd |last2=Stahl |first2=Andre |title=Siemens Healthineers wants to buy Varian for 16.4 billion dollars |url=https://www.dpa-international.com/topic/siemens-healthineers-wants-buy-varian-16-4-billion-dollars-urn%3Anewsml%3Adpa.com%3A20090101%3A200802-99-14003 |work=dpa International |date=2 August 2020 |language=en}} The deal was approved and completed on 15 April 2021.{{cite web |last1=Casey |first1=Brian |title=Siemens Healthineers completes Varian acquisition |url=https://www.auntminnieeurope.com/index.aspx?sec=nws&sub=rad&pag=dis&ItemID=620053 |website=AuntMinnieEurope |date=15 April 2021}}

Before its acquisition by Siemens Healthineers, Varian Medical Systems had acquired other companies, including Pan-Pacific Enterprises,{{Cite news |date=16 January 2008 |title=Varian acquires Chinese medical equipment distributor |work=MTB Europe |url=http://mtbeurope.info/news/2008/801014.htm}} ACCEL Instruments,{{Cite news |date=11 January 2007 |title=Varian to acquire German proton therapy system supplier ACCEL Instruments |work=MTB Europe |url=http://www.mtbeurope.info/news/2007/701010.htm}} Bio-Imaging Research, Inc.{{cite web|url=http://www.lifesciencesworld.com/news/view/34222|title=Varian Medical Systems Completes Acquisition of Bio-Imaging Research|date=24 May 2007}} Sigma Micro Informatique Conseil,{{Cite news |date=17 January 2005 |title=Varian Medical Systems acquires Sigma Micro Informatique Conseil |work=MTB Europe |url=http://www.mtbeurope.info/news/2005/501014.htm}} Argus Software,[http://www.allbusiness.com/company-activities-management/company-structures-ownership/5883938-1.html Varian Medical Systems Acquires Argus Software; Argus Software Automates Collection of Quality Control and Test Data for Radiation Equipment. | Company Activities & Management > Company Structures & Ownership from AllBusiness.com] Dosetek Oy,{{Cite web |title=Varian in Finland |url=https://www.varian.com/fi/about-varian/varian-finland-en |access-date=2020-06-17|website=Varian }} Velocity Medical Solutions.{{Cite press release |title=Varian Medical Systems Signs Agreement to Acquire Velocity Software Platform for Data-Driven Clinical Decision Making in Cancer Centers |date=12 March 2014 |publisher=Varian |url=http://investors.varian.com/index.php?s=31868&item=136881}} and MeVis Medical Solutions AG.{{cite news|title=Varian Medical Systems acquires majority stake in MeVis Medical Solutions|url=https://www.reuters.com/article/idUSFWN0XI02F20150421|website=Reuters|date=21 April 2015 |access-date=19 January 2016}}

In January 2018, the company announced the acquisition of Sirtex Medical for $1.3 billion.{{Cite news |date=2018-01-31 |title=Biotech M&A explodes with $27.5 billion of January deals |language=en |work=Reuters |url=https://www.reuters.com/article/us-biotech-m-a-idUKKBN1FK26U}}

In 2019, the company acquired CyberHeart, a privately held company with intellectual property (IP) that covers the use of radiation in the heart (cardiac radioablation) and other forms of radiosurgery for cardiovascular disease.{{cite web |title=Varian Acquires CyberHeart

|url=https://www.prnewswire.com/news-releases/varian-acquires-cyberheart-300847090.html |publisher=Varian|website=PR Newswire |date=9 May 2019}}

File:Varex Imaging office, Santa Clara.jpg

On January 30, 2017, a spin-off of Varex Imaging Corporation (manufacturing of X-ray imaging products) from Varian Medical Systems had been successfully completed.{{Cite press release |title= Varex Imaging Completes Separation from Varian Medical Systems, Lists on the Nasdaq Stock Market |date=20 January 2017 |publisher=Varex Imaging |location=Salt Lake City, Utah |url=https://www.vareximaging.com/news/varex-imaging-completes-separation-varian-medical-systems-lists-nasdaq-stock-market}}

Varian manufactures a range of megavoltage LINACs with varying levels of features and complexity, for example different numbers of multileaf collimators or the ability to perform radiosurgery.{{cite web|title=Varian High Energy Linear Accelerator Comparison Chart|url=https://www.oncologysystems.com/radiation-therapy/linear-accelerators/varian-high-energy-linear-accelerator-comparison-chart.php|website=Radiology Oncology Systems|access-date=4 November 2017|language=en-us}}

TrueBeam is a radiotherapy system.{{Cite web|url=http://radonc.ucla.edu/truebeam-faqs|title=Frequently Asked Questions: TrueBeam System {{!}} UCLA Radiation Oncology Technology|website=radonc.ucla.edu|access-date=2018-07-12}}

The EDGE radiosurgery suite was launched in 2012.{{cite web |title=Varian Medical Systems Unveils Edge Radiosurgery Suite – A Comprehensive Solution for Non-Invasive Surgical Procedures |url=https://www.varian.com/about-varian/newsroom/press-releases/varian-medical-systems-unveils-edgetm-radiosurgery-suite |access-date=10 June 2023}} The first cancer centers to use the new system were the Champalimaud Foundation in Lisbon, Portugal, and Henry Ford Health System in Detroit, Michigan.{{cite web|title=Henry Ford 1st in N. America With New Targeted Radiosurgery Technology|url=http://www.henryford.com/body.cfm?id=46335&action=detail&ref=2064|website=Henry Ford Health System|access-date=19 January 2016}}

In 2017, Varian launched Halcyon. The system features unique dual-layer MLC that enables high modulation with low leakage for every field or arc. Halcyon is advertised to be intuitive, friendly and comfortable for clinical staff and patient alike. This is primarily done by automating several functions typically performed manually by radiographers, such as switching between treatment beams automatically. Additionally, Halcyon also features an automated machine performance check for daily LINAC quality assurance, which can speed up the checking of beam constancy and mechanical performance through the use of a phantom.{{Cite web |date=13 August 2017 |title=Introducing Halcyon: An Innovative Treatment Platform |url=https://www.varian.com/oncology/events-resources/centerline/introducing-halcyon-innovative-treatment-platform |access-date=2018-07-12 |website=Varian |language=en}}

However, while Halcyon does boast improved automation and workflow improvements which allow for faster patient treatment, these extra automation tasks can make occasionally make it more difficult for medical physicists to perform detailed Quality Assurance on LINAC performance. Nevertheless, automation in both quality assurance and clinical operation generally make the LINAC easier to operate by checkers and radiation therapists.{{Citation needed|date=July 2022}}

Varian manufactures the ProBeam Proton Therapy System, with current and planned installations at several sites globally.{{cite web|title=Varian ProBeam Compact single-room proton therapy system selected by Penn Medicine|url=http://medicalphysicsweb.org/cws/article/newsfeed/70281|website=MedicalPhysicsWeb|date=27 October 2017}} These are an all pencil-beam scanning proton therapy system utilizing IMPT (intensity modulated proton therapy), which was developed with PSI of Switzerland.{{cite web|last1=Freeman|first1=Tami|title=Proton therapy: IMPT goes clinical|url=http://medicalphysicsweb.org/cws/article/research/45783|website=MedicalPhysicsWeb|date=22 April 2011}} Varian also develops medical software and radiology information system for proton treatment planning system.

On September 16, 2019, during the 2019 American Society for Radiation Oncology (ASTRO) annual meeting, being held Sept. 15–18 in Chicago, Varian announced Ethos therapy, an artificial intelligence (AI)-driven system designed to increase the capability, flexibility and efficiency of radiotherapy. This new system is designed to deliver an entire adaptive treatment in a typical 15-minute timeslot, from patient setup through treatment delivery.{{Citation needed|date=July 2022}}

In 1999, Varian Medical Systems, Inc. sued a former employee for defamation after they posted numerous messages criticizing the company on the Internet.{{cite web|last1=Espe|first1=Erik|title=Ex-Varian employees cry 'SLAPP'|url=http://www.bizjournals.com/sanjose/stories/1999/11/01/story6.html|website=Silicon Valley Business Journal|access-date=19 January 2016}} The lawsuit led to the ruling of Varian v. Delfino by the California Supreme Court on the question whether a trial could proceed while denial of the defendant's anti-SLAPP motion was under appeal. After the state supreme court ruled that a new trial would be necessary because of that technical concern,{{cite court |litigants=Varian Medical Systems, Inc. v. Delfino |vol= 25|reporter=Cal.Rptr.3d |opinion=298 |pinpoint= |court=Cal. |date= 2005|url=https://scocal.stanford.edu/opinion/varian-medical-systems-inc-v-delfino-33504 |access-date= |quote= |postscript= |via=SCOCAL }} the case was settled on undisclosed terms.

On April 25, 2012, a US federal judge in Pittsburgh awarded attorney fees, costs, and doubled damages totaling $73.6 million to the University of Pittsburgh after the university won a suit on medical patent infringement grounds against Varian.{{cite news |url= http://www.post-gazette.com/stories/business/news/pitt-to-receive-736-million-for-patent-infringements-633002/ |title= Pitt to receive $73.6 million for patent infringements |newspaper= Pittsburgh Post-Gazette |date=2012-04-25 |access-date=2012-07-11 |first=Rich |last=Lord}}

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Category:Companies formerly listed on the New York Stock Exchange

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