The grades of 10 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 DexCom, Inc. (DXCM) moves up this week, rising from a C to a B. DexCom, Inc. is a medical device company focused on the design and development of continuous glucose monitoring systems for people with diabetes. The company also gets A’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of DXCM stock.

Cynosure, Inc. Class A (CYNO) improves from a B to a A rating this week. Cynosure, Inc. Class A develops, manufactures, and markets aesthetic treatment systems to the dermatology, plastic surgery, and general medical markets. The company also gets A’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of CYNO stock.

Smith & Nephew PLC Sponsored ADR (SNN) shows solid improvement this week. The company’s rating rises from a C to a B. Smith & Nephew PLC Sponsored ADR develops, manufactures, markets and sells of medical devices in the sectors of orthopaedics, endoscopy and advanced wound management. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of SNN stock.

This week, Inogen, Inc.’s (INGN) ratings are up from a C last week to a B. The company also gets A’s in sales growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of INGN stock.

Insulet Corporation’s (PODD) ratings are looking better this week, moving up to a B from last week’s C. Insulet Corporation is a medical device company that develops, manufactures and markets an insulin infusion system for people with insulin-dependent diabetes. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of PODD stock.

Avinger, Inc. (AVGR) is seeing ratings go up from a B last week to a A this week. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of AVGR stock.

This is a strong week for Fonar Corporation (FONR). The company’s rating climbs to A from the previous week’s B. Fonar Corporation designs, develops, manufactures, and sells magnetic resonance imaging scanners for the detection and diagnosis of human disease. The company also gets A’s in return on equity and free cash flow. For more information, get Portfolio Grader’s complete analysis of FONR stock.

CryoLife, Inc. (CRY) earns a B this week, jumping up from last week’s grade of C. CryoLife, Inc. preserves and distributes human tissues in addition to developing, manufacturing, and commercializing medical devices for cardiac and vascular transplant applications. The company also gets A’s in earnings growth, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of CRY stock.

Rockwell Medical, Inc. (RMTI) gets a higher grade this week, advancing from a C last week to a B. Rockwell Medical, Inc. manufactures, markets, and delivers dialysis solutions, powders, and ancillary products to hemodialysis providers. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of RMTI stock.

This week, Pro-Dex, Inc. (PDEX) pushes up from a B to a A rating. Pro-Dex, Inc. designs, develops and manufactures rotary drive systems for the medical device and dental industries, motion control software and hardware for industrial and scientific applications and fractional horsepower DC motors for aerospace, medical and military applications. The company also gets A’s in sales growth and free cash flow. For more information, get Portfolio Grader’s complete analysis of PDEX 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.