The Medtronic-backed medical device developer has filed for an $80m IPO, after raising almost $90m in earlier funding.

The Ascension Health-backed ophthalmic treatment developer will use the proceeds to advance its lead product through Phase 2 and 3 clinical trials.

Game developer Elex has been acquired by Chinese Universe Publishing and Media, allowing Tencent and Innovation Works to exit.

The retail chain's incubator subsidiary has made the shopping app its 13th acquisition in just three years.

The data centre consultancy, backed by Citrix and Cisco, has filed for bankruptcy protection in the US.

Cisco is buying network automation software producer Tail-F in a $175m deal that will provide an exit to SEB Venture Capital, which led its series A and B rounds.

The company plans to float in July.

Convergence Pharmaceuticals, spun out of GlaxoSmithKline, which still holds an 18% stake, is considering both London and New York for its initial public offering.

Gadling was originally acquired by AOL as part of its $25m purchase of Weblogs in 2005.

The Wells Fargo-backed mobile device management firm could see the size of the initial public offering increase to $115m before it closes.