This week, 12 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”).

Atrion Corporation (ATRI) boosts its rating from a B to a A this week. Atrion Corporation engages in the design, development, manufacture, sale, and distribution of products mainly for the medical and healthcare industries. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of ATRI stock.

Stryker Corporation (SYK) shows solid improvement this week. The company’s rating rises from a B to a A. Stryker Corporation produces a variety of products in the medical technology sector. The company also gets A’s in operating margin growth, earnings growth, and return on equity. For more information, get Portfolio Grader’s complete analysis of SYK stock.

This is a strong week for LivaNova Plc (LIVN). The company’s rating climbs to B from the previous week’s C. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of LIVN stock.

Natus Medical Incorporated (BABY) earns a B this week, jumping up from last week’s grade of C. Natus Medical Incorporated is a medical device company that develops, manufactures, and markets screening products. The company also gets A’s in earnings growth. For more information, get Portfolio Grader’s complete analysis of BABY stock.

The rating of Vascular Solutions, Inc. (VASC) moves up this week, rising from a C to a B. Vascular Solutions, Inc. is a medical device company focused on bringing clinically advanced solutions to interventional cardiologists and interventional radiologists worldwide. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of VASC stock.

Globus Medical, Inc. Class A (GMED) gets a higher grade this week, advancing from a C last week to a B. Globus Medical, Inc. Class A focuses on the design, development, and commercialization of products that promote healing in patients with spine disorders. For more information, get Portfolio Grader’s complete analysis of GMED stock.

This week, Invacare Corporation (IVC) pushes up from a C to a B rating. Invacare Corporation manufactures and distributes health care products to the non-acute care market on a worldwide basis. For more information, get Portfolio Grader’s complete analysis of IVC stock.

This week, iRadimed Corp’s (IRMD) ratings are up from a B last week to a A. The company also gets A’s in sales growth, operating margin growth, earnings growth, and return on equity. For more information, get Portfolio Grader’s complete analysis of IRMD stock.

Cutera, Inc. (CUTR) improves from a C to a B rating this week. Cutera, Inc. is a global provider of laser and other light-based aesthetic systems for practitioners worldwide. The company also gets A’s in sales growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of CUTR stock.

STAAR Surgical Company (STAA) is seeing ratings go up from a C last week to a B this week. STAAR Surgical Company designs, develops, manufactures and sells implantable lenses for the eye. For more information, get Portfolio Grader’s complete analysis of STAA stock.

Electromed, Inc.’s (ELMD) ratings are looking better this week, moving up to a A from last week’s D. Electromed, Inc. manufactures, markets and sells products that provide airway clearance therapy for patients with compromised pulmonary function. The company also gets A’s in sales growth, operating margin growth, earnings growth, earnings revisions, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of ELMD stock.

Pro-Dex, Inc. (PDEX) improves from a C to a B rating this week. 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. 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.