Thanks, Doc. Before I begin, let me remind all of you that the sales numbers we are covering, as well as our financial statements, are available on the Investor portion of our website for your review.
Our second quarter 2012 revenue was $77.3 million, a decrease of 0.7% compared to $77.8 million in the same period last year. Net income for the second quarter of 2012 was $9.1 million, or $0.63 per diluted share, as compared to net income of $9.5 million, or $0.67 per diluted share, for the second quarter of 2011.
Now let me discuss our second quarter revenue performance by market segments. You can also view our detailed market segmentation in our earnings press release.
For the second quarter of 2012, sales from the Infusion Therapy market increased 4% to $51.5 million and represented 66.6% of our total sales. This growth was driven by strong performance of needle-free connectors, primarily CLAVE and MicroCLAVE, as well as custom sets. More specifically, sales from CLAVE and MicroCLAVE increased 3.4% to $27.3 million compared to $26.4 million a year ago, representing 35.3% of our total revenue.
Custom infusion sets were up 7.2% year-over-year to $20.6 million compared to $19.2 million a year ago and comprised 26.6% of our total sales. We expect sales in Infusion Therapy to increase approximately 7% to 9% in fiscal year 2012 from fiscal year 2011 and to be driven by both needle-free connectors and custom sets.
As expected, sales from the Critical Care market were down 4.8% to $15.7 million compared to $16.5 million a year ago and represented 20.3% of our total sales. The decrease was attributable to competitive volume and price pressures beginning in the second half of last year. We will be introducing new products in the second half of this year and are excited about the long-term opportunities they represent. Given the current market conditions, we expect Critical Care sales to decrease year-over-year by approximately 1% to 2%. This is an improvement from our previous estimates of a decrease of approximately 4% to 8%.
Sales from our oncology market were flat at $7.1 million compared to $7.3 million a year ago, primarily due to stocking that occurred in the second quarter last year. On a sequential basis, sales from the oncology market were up approximately 11%. Based on the current demand, backlog of conversions and expected growth opportunities, we forecast sales from this market to increase approximately 25% to 35% for fiscal year 2012, down from our previous estimate of 35% to 45%. The change in our projected growth rate is based on slower conversions of new business. The market opportunity continues to expand for our oncology products, and we're excited about the long-term opportunities for our growing product offerings in this market.
Our other product category, which primarily includes products in the renal and enteral markets, was down 32.8% to $3 million compared to $4.5 million a year ago, representing 3.9% of our second quarter total revenue.
Sales from TEGO increased 17.4% year-over-year to $2 million. This strong growth was offset by the elimination of Orbit sales, which we stopped shipping last quarter. As a reminder, we sold the Orbit product line during the fourth quarter last year. Excluding Orbit sales, our other product category was down 9% for the quarter. Including the sales of Orbit last year, we expect sales in this product category to decrease approximately 20% this year.
Now our second quarter sales by distribution channel were as follows. Domestic sales to Hospira were flat year-over-year at $27.2 million, as strong performance of custom infusion sets and oncology products was partially offset by a decline in CLAVE's and MicroCLAVE's needle-free connectors. For both the second quarter of 2012 and 2011, domestic sales to Hospira represented 35% of our total revenue.
Our non-Hospira domestic sales increased 10.7% to $29.4 million compared to $26.5 million a year ago, as double-digit growth in Infusion Therapy and oncology products was partially offset by an expected decrease in Critical Care. Our 2012 non-Hospira domestic sales represented 38% of total revenue compared to 34% last year.
International sales were down 13.8% to $20.7 million year-over-year, representing 26.8% of our total revenue during the second quarter. The decline was primarily attributable to softness in Europe and the exchange rate of the euro. Foreign exchange from Europe negatively impacted our sales by approximately $1.3 million year-over-year.
Our gross margins for the second quarter expanded 427 basis points sequentially and 404 basis points year-over-year to 50.6%, reflecting a more favorable product mix by selling higher-margin products, a favorable peso exchange rate and improved manufacturing efficiencies. Based on these factors, we now expect our gross margins to be in the range of 48% to 48.5% for the year compared to our previous range of 47% to 47.5% for the full fiscal year of 2012.
SG&A expenses increased by 15.6% year-over-year to $22.8 million compared to $19.7 million for the second quarter of 2011. The increase was primarily due to higher sales and marketing costs, as well as higher legal expenses and other one-time costs. As a percentage of sales, our SG&A expenses were 29.5% compared to 25.4% a year ago. We expect SG&A, as a percentage of total revenue, to be approximately 27% for the full fiscal year of 2012.
Our research and development expenses increased to 9.6% to $2.7 million compared to $2.5 million for the second quarter of 2011. This increase was in line with our expectations, as we continue to invest in our existing and new products for all our target markets. We expect our research and development expenses to be about 3.3% of revenue for the full fiscal year of 2012.
Our tax rate for the second quarter was 33.2%, and we expect our tax rate to be approximately 34% for the full fiscal year of 2012.
Our operating income for the second quarter of 2012 totaled $13.5 million or 17.5% of sales compared to operating income of $14 million or 18% of sales a year ago.
Our EBITDA totaled $18.4 million compared to $19 million for the second quarter a year ago.
Now moving to our balance sheet and cash flow. As of June 30, 2012, our balance sheet remained very strong with no debt and $193.5 million in cash, cash equivalents and investment securities. This equates to approximately $13.58 per outstanding share. Additionally, we have $263.6 million in working capital.
During the second quarter of 2012, we generated $13.1 million in cash flow from operating activities. Our capital expenditures totaled $4.6 million during the quarter and primarily included machinery, equipment and molds for our plant in the U.S.
Days sales outstanding for the second quarter were 53 days. We expect DSOs to be approximately 55 to 60 days in the foreseeable future, which is an improvement from our historical DSOs.
Now let me update you on our financial guidance for the fiscal year 2012 and the third quarter. Based on the current business trends, we are narrowing our previously announced revenue guidance range for the full fiscal year of 2012, the new range of $318 million to $325 million compared to the previous range of $318 million to $330 million.
On a market-segment basis, we expect our Infusion Therapy sales to increase year-over-year approximately 7% to 9%, we expect Critical Care to be down approximately 1% to 2%, and we expect our Oncology Market segment to be up 25% to 35%. We expect our other category will be down 20%. We are also raising the bottom end of our previously announced diluted earnings guidance range. The new range is $2.55 to $2.70 per share compared to the previous range of $2.45 to $2.70 per share. For modeling purposes, our tax rate is expected to be 34% for 2012.
For the third quarter of 2012, we expect our revenue to be in the range of $81 million to $84 million, and we expect our earnings per share to be in the range of $0.65 to $0.72 per diluted share. Our operating cash flow is expected to be approximately $40 million to $50 million in 2012, and we believe capital expenditures will be $13 million to $18 million in 2012.
Operator, we are now ready to open the call for questions.