The grades of 12 Health Care Equipment & Supplies stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Cooper Companies, Inc.’s (COO) ratings are up from a C last week to a B. Cooper Companies, Inc. develops, manufactures, and markets healthcare products. For more information, get Portfolio Grader’s complete analysis of COO stock.

Varian Medical Systems, Inc. (VAR) gets a higher grade this week, advancing from a C last week to a B. Varian Medical Systems, Inc. manufactures and sells equipment and software products for treating cancer with radiotherapy and radiosurgery. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of VAR stock.

Cantel Medical Corp. (CMN) boosts its rating from a B to a A this week. Cantel Medical Corp. provides the healthcare market with products dedicated to infection prevention and control. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CMN stock.

ResMed Inc. (RMD) earns a A this week, jumping up from last week’s grade of B. ResMed Inc. develops, manufactures and distributes medical equipment for treating, diagnosing and managing sleep-disordered breathing and other respiratory disorders. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of RMD stock.

Hill-Rom Holdings, Inc. (HRC) improves from a C to a B rating this week. Hill-Rom Holdings, Inc. manufactures equipment for the healthcare industry, and provides wound care and pulmonary/trauma management services. The company also gets A’s in sales growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of HRC stock.

This is a strong week for Viveve Medical Inc (VIVE). The company’s rating climbs to B from the previous week’s C. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of VIVE stock.

OraSure Technologies, Inc. (OSUR) shows solid improvement this week. The company’s rating rises from a B to a A. OraSure Technologies, Inc. develops, manufactures, and markets medical devices and diagnostic products. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of OSUR stock.

The rating of Bovie Medical Corporation (BVX) moves up this week, rising from a B to a A. Bovie Medical Corporation develops, manufactures, and markets medical products and devices with an emphasis on electrosurgical generators and electrosurgical disposables in the United States, Canada, and internationally. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of BVX stock.

Volitionrx Limited (VNRX) is seeing ratings go up from a C last week to a B this week. For more information, get Portfolio Grader’s complete analysis of VNRX stock.

Akers Biosciences, Inc.’s (AKER) ratings are looking better this week, moving up to a B from last week’s C. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of AKER stock.

This week, Check-Cap Ltd. (CHEK) pushes up from a C to a B rating. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of CHEK stock.

BIOLASE, Inc.’s (BIOL) ratings are looking better this week, moving up to a B from last week’s C. BIOLASE, Inc. develops, manufactures, and markets lasers systems for dental and medical applications and procedures in the United States and internationally. For more information, get Portfolio Grader’s complete analysis of BIOL 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.