The scope of medical devices is so large, so large that it is no problem at all to get dozens of market segments, and no company can cover all areas.
The recognized high-value consumables alone include:
Vascular interventional consumables: coronary interventional consumables (Medtronic, Abbott, Poco, Minimax, Gigaux, Leprechaun, Terumo, etc.); peripheral interventional consumables (Medtronic, Abbott, Poco, Cook, St. Jude's, Minimax, Terumo, etc.)
Cardiac electrophysiology (Johnson & Johnson, St. Jude's, Medtronic, etc.)
Neurological interventions (Kevlar EV3, Terumo microvention, Johnson & Johnson, Microvention, etc.)
Orthopaedics (Johnson & Johnson, Jetmax Bumper, Stryker, Schlafly, Medtronic, Weigao, etc.)
Surgical special sutures, anastomoses, hernia repair, etc. (Johnson & Johnson, Kevlar, Beltronic Snake, Bard, etc.)
Surgical specialty sutures, anastomosis, hernia repair, etc. (Johnson & Johnson, Kevlar, Beltronic, Bard, etc.) etc.
IVD (Roche, Abbott, Siemens, Beckman Coulter, etc.)
Blood Transfusion (Fresenius, Baxter Kimball, Asahi Kasei, Weigao, etc.)
IOLs (Alcon, Phonak, Abbott Eye, Zeiss, etc.)
If you add in the injectable equipment, all kinds of medical tubing, and other low-value consumables, the list can simply be the list goes on and on.