Boston Scientific Inc. (NYSE: BSX) has agreed to acquire Vessix Vascular Inc., a Laguna Hills, Calif.-based developer of novel percutaneous RF balloon catheter technology. The deal is valued at upwards of $425 million, including a $125 million upfront payment. Vessix had raised around $38 million in VC funding from firms like Edmond de Rothschild Investment Partners, OrbiMed Advisors, CDF Dinova Venture Partners (Hong Kong), NeoMed Management, Christopher Weil & Company and Fjord Invest LLC. www.vessixvascular.com
Permira has sold its remaining 5.94% stake in Hong Kong-listed casino operator Galaxy Entertainment Group for approximately $875 million, or HK$27.17 per share, according to Reuters. Permira now has generated around a 1.7% return on Galaxy, which it originally backed in 2007. www.permira.com
Aviva PLC (LSE: AV), Britain’s second-largest insurance company, said that it is nearing a sale agreement for its U.S. unit. www.aviva.com
Perion Network Ltd. (Nasdaq: PERI) has acquired SweetIM, an Israeli provider of consumer apps and downloadable content. The deal is valued at $41 million in cash and stock ($39m/$2m). www.perion.com
Vivendi SA has put its Brazilian unit (GVT) on the block, with an asking price of at least €7 billion, according to Reuters. Suitors reportedly include America Movil SAB, DirecTV and Telecom Italia SpA. www.vivendi.com
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