The grades of 3 Health Care Equipment & Supplies stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

The rating of Sirona Dental Systems, Inc. (SIRO) moves up this week, rising from a B to a A. Sirona Dental Systems, Inc. is a manufacturer of high-quality, technologically-advanced dental equipment, and is focused on developing, manufacturing and marketing innovative solutions for dentists around the world. For more information, get Portfolio Grader’s complete analysis of SIRO stock.

This is a strong week for Utah Medical Products, Inc. (UTMD). The company’s rating climbs to B from the previous week’s C. Utah Medical Products, Inc. produces and markets medical devices for the healthcare industry. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of UTMD stock.

Mindray Medical International Ltd. Sponsored ADR Class A’s (MR) ratings are looking better this week, moving up to a B from last week’s C. Mindray Medical International Ltd. Sponsored ADR Class A develops, makes and markets medical devices. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of MR stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.