Segment Information

3 Months Ended

Mar. 31, 2021

Segment Information [Abstract]

Segment Information

15. Segment Information  

We have two reportable segments organized according to our products and services: Medical Devices and Preservation Services. The Medical Devices segment includes external revenues from product sales of aortic stents and stent grafts, surgical sealants, On-X, and other product revenues. Aortic stents and stent grafts include JOTEC, AMDS and NEXUS product revenues. Surgical sealants include BioGlue Surgical Adhesive product revenues. The Preservation Services segment includes external services revenues from the preservation of cardiac and vascular tissues. There are no intersegment revenues. 

The primary measure of segment performance, as viewed by our management, is segment gross margin or net external revenues less cost of products and preservation services. We do not segregate assets by segment; therefore, asset information is excluded from the segment disclosures below.

The following table summarizes revenues, cost of products and preservation services, and gross margins for our operating segments (in thousands): 

	Three Months Ended
	March 31,
	2021		2020
Revenues:
Medical devices	$	53,345	$	46,420
Preservation services		17,742		20,009
Total revenues		71,087		66,429
Cost of products and preservation services:
Medical devices		14,911		13,040
Preservation services		8,338		9,218
Total cost of products and preservation services		23,249		22,258
Gross margin:
Medical devices		38,434		33,380
Preservation services		9,404		10,791
Total gross margin	$	47,838	$	44,171

The following table summarizes net revenues by product and service (in thousands): 

	Three Months Ended
	March 31,
	2021		2020
Products:
Aortic stents and stent grafts	$	20,205		15,468
Surgical sealants		17,828		16,737
On-X		13,095		12,202
Other		2,217		2,013
Total products		53,345		46,420
Preservation services		17,742		20,009
Total revenues	$	71,087	$	66,429