Mergers and acquisitions

9/17Quadion Corp.Norwest Equity PartnersNorwest Equity Partners has acquired Quadion Corp., doing MinneapolisMinneapolisbusiness as Minnesota Rubber & Plastics, a provider of rubber and plastic molded components and assembly products. 9/18Healthsense Inc.Multiple investorsHealthsense, a provider of technology products to assist care Mendota Heights providers, has raised $7 million in venture capital funding. 9/19Torax Medical Inc.Multiple investorsTorax Medical has completed a $30 million round of financing St. Paul from investors led by Piper Jaffray Merchant Banking and including Thomas McNerney & Partners and Mayo Medical Ventures, to expand commercialization efforts for its sphincter augmentation products. 9/19BridgePoint Medical Inc.Boston Scientific Corp.Boston Scientific will acquire BridgePoint, a developer of a PlymouthNatick, Mass.catheter-based system to treat coronary chronic total occlusions. 9/19Andali Operacoes Industriais SACHS Inc.CHS has acquired a Brazilian storage and warehousing Paranagua, BrazilInver Grove Heightsservices provider focusing on bulk fertilizer products. 9/20DynAgra Corp.CHS Inc.CHS will acquire a Canadian agriculture retail and Beiseker, AlbertaInver Grove Heightsmarketing services provider. 9/21Mitchell's Oil Field Services Inc.John Wood Group PLCJohn Wood Group PLC will acquire Mitchell's Oil Field Sidney, Mont.Aberdeen, ScotlandServices, a provider of maintenance, installation and fabrication services for the oil and gas industry, from Stone Arch Capital, a Minneapolis-based private equity group, for $135 million.