This week, 11 Health Care Equipment & Supplies stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Becton, Dickinson and Company (BDX) pushes up from a B to a A rating. Becton, Dickinson and Company is a global medical technology company engaged in the development, manufacture, and sale of medical devices, instrument systems, and reagents. The company also gets A’s in sales growth, earnings growth, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of BDX stock.

Baxter International Inc. (BAX) earns a A this week, jumping up from last week’s grade of B. Baxter International Inc. develops, manufactures and markets products related to hemophilia, immune disorders, infectious diseases, kidney disease, trauma, and other chronic and acute medical conditions. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, earnings surprise, earnings momentum, and free cash flow. For more information, get Portfolio Grader’s complete analysis of BAX stock.

Orthofix International NV (OFIX) is seeing ratings go up from a B last week to a A this week. Orthofix International NV is a global medical device company offering a line of surgical and non-surgical products mainly in the spine, orthopedics, sports medicine and vascular market sectors. The company also gets A’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of OFIX stock.

This is a strong week for Vascular Solutions, Inc. (VASC). The company’s rating climbs to B from the previous week’s C. Vascular Solutions, Inc. is a medical device company focused on bringing clinically advanced solutions to interventional cardiologists and interventional radiologists worldwide. For more information, get Portfolio Grader’s complete analysis of VASC stock.

ZELTIQ Aesthetics, Inc. (ZLTQ) shows solid improvement this week. The company’s rating rises from a C to a B. ZELTIQ Aesthetics, Inc. provides medical services. The company also gets A’s in sales growth, operating margin growth, earnings growth, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of ZLTQ stock.

The rating of Boston Scientific Corporation (BSX) moves up this week, rising from a B to a A. Boston Scientific Corporation is a developer, manufacturer and marketer of medical devices that are used in a range of interventional medical specialties. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of BSX stock.

NxStage Medical, Inc. (NXTM) gets a higher grade this week, advancing from a C last week to a B. NxStage Medical, Inc. is medical device company that develops, manufactures, and markets systems for the treatment of end-stage renal disease and acute kidney failure. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of NXTM stock.

ReWalk Robotics Ltd. (RWLK) boosts its rating from a C to a B this week. For more information, get Portfolio Grader’s complete analysis of RWLK stock.

OraSure Technologies, Inc.’s (OSUR) ratings are looking better this week, moving up to a A from last week’s B. OraSure Technologies, Inc. develops, manufactures, and markets medical devices and diagnostic products. The company also gets A’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of OSUR stock.

This week, Cardica, Inc.’s (CRDC) ratings are up from a C last week to a B. Cardica, Inc. engages in the development of an endoscopic microcutter product line for use by thoracic, bariatric, colorectal, and general surgeons primarily in the United States and internationally. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CRDC stock.

Echo Therapeutics, Inc. (ECTE) improves from a C to a B rating this week. Echo Therapeutics, Inc. operates as a transdermal medical device company in the United States. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of ECTE 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.