| [ x ] | Quarterly Report Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934 for the Quarterly Period Ended September 30, 2010 |
|-------|-------------------------------------------------------------------------------------------------------------------------------------------|

|   | or |
|--------|----|

| [    ] | Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the Transition Period from    to |
|----------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------|

| Atrion Corporation                                                |
|-------------------------------------------------------------------|
| (Exact Name of Registrant as Specified in its Charter)            |
|                                                              |   |   |
| Delaware                                                          |   | 63-0821819 |
| (State or Other Jurisdiction ofIncorporation or Organization)     |   | (I.R.S. EmployerIdentification No.) |
|                                                              |   |   |
| One Allentown Parkway, Allen, Texas     75002 |
| (Address of Principal Executive Offices)   (Zip Code)   |
|                                                              |   |   |
| (972) 390-9800                                                    |
| (Registrant’s Telephone Number, Including Area Code)        |

| Large accelerated filer  o | Accelerated filer  x | Non-accelerated filer  o | Smaller reporting company  o |
|---------------------------------|---------------------------|-------------------------------|-----------------------------------|

|  Title of Each Class               |   | Number of Shares Outstanding atOctober 15, 2010 |
|-----------------------------------------|--------|-------------------------------------------------|
| Common stock, Par Value $0.10 per share |   | 2,011,657                                       |

----

| PART I.   Financial Information | 2        |
|------------------------------------------------|----------|
|                                           |     |   |   |   |
|                                           | Item 1.  | Financial Statements |   |
|                                           |     |   |   |   |
|                                           |     |   | Consolidated Statements of Income (Unaudited)For the Three and  Nine  months Ended September 30, 2010 and 2009 | 3 |
|                                           |     |   |   |   |
|                                           |     |   | Consolidated Balance Sheets (Unaudited)September 30, 2010 and December 31, 2009 | 4 |
|                                           |     |   |   |   |
|                                           |     |   | Consolidated Statements of Cash Flows (Unaudited)For the Nine months Ended September 30, 2010 and 2009 | 5 |
|                                           |     |   |   |   |
|                                           |     |   | Notes to Consolidated Financial Statements (Unaudited) | 6 |
|                                           |     |   |   |   |
|                                           | Item 2.  | Management's Discussion and Analysis of Financial Condition and Results of Operations | 9 |
|                                           |     |   |   |   |
|                                           | Item 3.  | Quantitative and Qualitative Disclosures About Market Risk | 14 |
|                                           |     |   |   |   |
|                                           | Item 4.  | Controls and Procedures | 14 |
|                                           |     |   |   |   |
| PART II.   Other Information    | 14       |
|                                           |     |   |   |   |
|                                           | Item 1.  | Legal Proceedings | 14 |
|                                           |     |   |   |   |
|                                           | Item 1A. | Risk Factors | 14 |
|                                           |     |   |   |   |
|                                           | Item 2.  | Unregistered Sales of Equity Securities and Use of Proceeds | 15 |
|                                           |     |   |   |   |
|                                           | Item 6.  | Exhibits | 15 |
|                                           |     |   |   |   |
| SIGNATURES                                     | 16       |

----

PART I

----

Item 1.Financial Statements

ATRION CORPORATION AND SUBSIDIARIES

|                                        |   | Three Months EndedSeptember 30,              |   |   | Nine Months EndedSeptember 30, |   |
|---------------------------------------------|--------|----------------------------------------------|--------|--------|--------------------------------|--------|
|                                        |   | 2010                                         |   |   | 2009                           |   |   | 2010 |   |   | 2009 |   |
|                                        |   | (in thousands, except for per share amounts) |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |
| Revenues                                    |   | $                                            | 27,156 |   |                           | $      | 25,192 |   |   | $ | 81,939 |   |   | $ | 76,240 |   |
| Cost of goods sold                          |   |                                         | 14,180 |   |                           |   | 13,973 |   |   |   | 43,908 |   |   |   | 41,902 |   |
| Gross profit                                |   |                                         | 12,976 |   |                           |   | 11,219 |   |   |   | 38,031 |   |   |   | 34,338 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Operating expenses:                         |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Selling                                     |   |                                         | 1,312  |   |                           |   | 1,357 |   |   |   | 4,076 |   |   |   | 4,367 |   |
| General and administrative                  |   |                                         | 2,901  |   |                           |   | 2,635 |   |   |   | 8,684 |   |   |   | 8,069 |   |
| Research and development                    |   |                                         | 760    |   |                           |   | 661 |   |   |   | 2,050 |   |   |   | 2,191 |   |
|                                        |   |                                         | 4,973  |   |                           |   | 4,653 |   |   |   | 14,810 |   |   |   | 14,627 |   |
| Operating income                            |   |                                         | 8,003  |   |                           |   | 6,566 |   |   |   | 23,221 |   |   |   | 19,711 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Interest income                             |   |                                         | 315    |   |                           |   | 162 |   |   |   | 689 |   |   |   | 391 |   |
| Other income                                |   |                                         | 2      |   |                           |   | -- |   |   |   | 2 |   |   |   | 1 |   |
|                                        |   |                                         | 317    |   |                           |   | 162 |   |   |   | 691 |   |   |   | 392 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Income before provision for income taxes    |   |                                         | 8,320  |   |                           |   | 6,728 |   |   |   | 23,912 |   |   |   | 20,103 |   |
| Provision for income taxes                  |   |                                         | (2,920 | )      |                           |   | (2,268 | ) |   |   | (8,384 | ) |   |   | (6,852 | ) |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Net Income                                  |   | $                                            | 5,400  |   |                           | $      | 4,460 |   |   | $ | 15,528 |   |   | $ | 13,251 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Income per basic share                      |   | $                                            | 2.68   |   |                           | $      | 2.25 |   |   | $ | 7.69 |   |   | $ | 6.70 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Weighted average basic shares outstanding   |   |                                         | 2,017  |   |                           |   | 1,980 |   |   |   | 2,019 |   |   |   | 1,978 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Income per diluted share                    |   | $                                            | 2.66   |   |                           | $      | 2.20 |   |   | $ | 7.65 |   |   | $ | 6.57 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Weighted average diluted shares outstanding |   |                                         | 2,029  |   |                           |   | 2,028 |   |   |   | 2,031 |   |   |   | 2,017 |   |
|                                        |   |                                         |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Dividends per common share                  |   | $                                            | 0.42   |   |                           | $      | 0.36 |   |   | $ | 7.14 |   |   | $ | 0.96 |   |

----

ATRION CORPORATION AND SUBSIDIARIES

| Assets                                                                                                |   | September 30,2010 |    |   | December 31,2009 |   |
|-------------------------------------------------------------------------------------------------------|--------|-------------------|---------|--------|------------------|--------|
|                                                                                                  |   | (in thousands)    |    |
| Current Assets:                                                                                       |   |              |    |   |             |   |
| Cash and cash equivalents                                                                             |   | $                 | 9,851   |   |             | $      | 20,694 |   |
| Short-term investments                                                                                |   |              | 6,672   |   |             |   | 4,230 |   |
| Accounts receivable                                                                                   |   |              | 13,007  |   |             |   | 11,026 |   |
| Inventories                                                                                           |   |              | 18,442  |   |             |   | 18,675 |   |
| Prepaid expenses                                                                                      |   |              | 1,215   |   |             |   | 981 |   |
| Deferred income taxes                                                                                 |   |              | 596     |   |             |   | 596 |   |
|                                                                                                  |   |              | 49,783  |   |             |   | 56,202 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Long-term investments                                                                                 |   |              | 24,448  |   |             |   | 11,477 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Property, plant and equipment                                                                         |   |              | 102,133 |   |             |   | 99,862 |   |
| Less accumulated depreciation and amortization                                                        |   |              | 51,753  |   |             |   | 46,721 |   |
|                                                                                                  |   |              | 50,380  |   |             |   | 53,141 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Other assets and deferred charges:                                                                    |   |              |    |   |             |   |   |   |
| Patents                                                                                               |   |              | 1,317   |   |             |   | 1,520 |   |
| Goodwill                                                                                              |   |              | 9,730   |   |             |   | 9,730 |   |
| Other                                                                                                 |   |              | 790     |   |             |   | 679 |   |
|                                                                                                  |   |              | 11,837  |   |             |   | 11,929 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
|                                                                                                  |   | $                 | 136,448 |   |             | $      | 132,749 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Liabilities and Stockholders’ Equity                                                            |   |              |    |   |             |   |   |   |
| Current liabilities:                                                                                  |   |              |    |   |             |   |   |   |
| Accounts payable and accrued liabilities                                                              |   | $                 | 7,932   |   |             | $      | 6,125 |   |
| Accrued income and other taxes                                                                        |   |              | 1,387   |   |             |   | 557 |   |
|                                                                                                  |   |              | 9,319   |   |             |   | 6,682 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Line of credit                                                                                        |   |              | --      |   |             |   | -- |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Other non-current liabilities                                                                         |   |              | 9,303   |   |             |   | 9,336 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
| Stockholders’ equity:                                                                           |   |              |    |   |             |   |   |   |
| Common shares, par value $0.10 per share; authorized   10,000 shares, issued 3,420 shares   |   |              | 342     |   |             |   | 342 |   |
| Paid-in capital                                                                                       |   |              | 23,442  |   |             |   | 20,356 |   |
| Retained earnings                                                                                     |   |              | 132,793 |   |             |   | 131,769 |   |
| Treasury shares,1,408 at September 30, 2010 and 1,440    at December 31, 2009, at cost |   |              | (38,751 | )      |             |   | (35,736 | ) |
| Total stockholders’ equity                                                                      |   |              | 117,826 |   |             |   | 116,731 |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
|                                                                                                  |   |              |    |   |             |   |   |   |
|                                                                                                  |   | $                 | 136,448 |   |             | $      | 132,749 |   |

----

ATRION CORPORATION AND SUBSIDIARIES

|                                                                                                |   | Nine Months EndedSeptember 30 |    |
|-----------------------------------------------------------------------------------------------------|--------|-------------------------------|---------|
|                                                                                                |   | 2010                          |    |   | 2009 |   |
|                                                                                                |   | (in thousands)                |    |
| Cash flows from operating activities:                                                               |   |                          |    |   |   |   |
| Net income                                                                                          |   | $                             | 15,528  |   |   | $ | 13,251 |   |
| Adjustments to reconcile net income to    net cash provided by operating activities: |   |                          |    |   |   |   |   |   |
| Depreciation and amortization                                                                       |   |                          | 5,457   |   |   |   | 5,126 |   |
| Deferred income taxes                                                                               |   |                          | 56      |   |   |   | 771 |   |
| Stock-based compensation                                                                            |   |                          | 464     |   |   |   | 500 |   |
|                                                                                                |   |                          | 21,505  |   |   |   | 19,648 |   |
|                                                                                                |   |                          |    |   |   |   |   |   |
| Changes in operating assets and liabilities:                                                        |   |                          |    |   |   |   |   |   |
| Accounts receivable                                                                                 |   |                          | (1,981  | ) |   |   | (788 | ) |
| Inventories                                                                                         |   |                          | 233     |   |   |   | 1,303 |   |
| Prepaid expenses                                                                                    |   |                          | (234    | ) |   |   | (375 | ) |
| Other non-current assets                                                                            |   |                          | (111    | ) |   |   | 186 |   |
| Accounts payable and accrued liabilities                                                            |   |                          | 1,807   |   |   |   | 996 |   |
| Accrued income and other taxes                                                                      |   |                          | 830     |   |   |   | (86 | ) |
| Other non-current liabilities                                                                       |   |                          | (89     | ) |   |   | (31 | ) |
|                                                                                                |   |                          | 21,960  |   |   |   | 20,853 |   |
|                                                                                                |   |                          |    |   |   |   |   |   |
| Cash flows from investing activities:                                                               |   |                          |    |   |   |   |   |   |
| Property, plant and equipment additions                                                             |   |                          | (2,492  | ) |   |   | (5,430 | ) |
| Purchase of investments                                                                             |   |                          | (19,212 | ) |   |   | (15,550 | ) |
| Proceeds from maturities of investments                                                             |   |                          | 4,000   |   |   |   | 4,000 |   |
| Net change in accrued interest on investments                                                       |   |                          | (201    | ) |   |   | (155 | ) |
|                                                                                                |   |                          | (17,905 | ) |   |   | (17,135 | ) |
|                                                                                                |   |                          |    |   |   |   |   |   |
| Cash flows from financing activities:                                                               |   |                          |    |   |   |   |   |   |
| Exercise of stock options                                                                           |   |                          | 343     |   |   |   | 459 |   |
| Shares tendered for employees’ taxes on stock-based compensation                              |   |                          | (501    | ) |   |   | (122 | ) |
| Tax benefit related to stock options                                                                |   |                          | 1,096   |   |   |   | 102 |   |
| Purchase of treasury stock                                                                          |   |                          | (1,407  | ) |   |   | -- |   |
| Dividends paid                                                                                      |   |                          | (14,429 | ) |   |   | (1,900 | ) |
|                                                                                                |   |                          | (14,898 | ) |   |   | (1,461 | ) |
|                                                                                                |   |                          |    |   |   |   |   |   |
| Net change in cash and cash equivalents                                                             |   |                          | (10,843 | ) |   |   | 2,257 |   |
| Cash and cash equivalents at beginning of period                                                    |   |                          | 20,694  |   |   |   | 12,056 |   |
| Cash and cash equivalents at end of period                                                          |   | $                             | 9,851   |   |   | $ | 14,313 |   |
|                                                                                                |   |                          |    |   |   |   |   |   |
|                                                                                                |   |                          |    |   |   |   |   |   |
|                                                                                                |   |                          |    |   |   |   |   |   |
| Cash paid for:                                                                                      |   |                          |    |   |   |   |   |   |
| Income taxes                                                                                        |   | $                             | 6,735   |   |   | $ | 6,394 |   |

----

ATRION CORPORATION AND SUBSIDIARIES

|              |   | September 30, |   |   | December 31, |   |
|-------------------|--------|---------------|--------|--------|--------------|--------|
|              |   | 2010          |   |   | 2009         |   |
| Raw materials     |   | $             | 8,502  |   |         | $      | 8,541 |   |
| Work in process   |   |          | 4,575  |   |         |   | 4,078 |   |
| Finished goods    |   |          | 5,365  |   |         |   | 6,056 |   |
| Total inventories |   | $             | 18,442 |   |         | $      | 18,675 |   |

----

|                                          |   | Three months endedSeptember, 30          |   |   | Nine months endedSeptember 30, |   |
|-----------------------------------------------|--------|------------------------------------------|--------|--------|--------------------------------|--------|
|                                          |   | 2010                                     |   |   | 2009                           |   |   | 2010 |   |   | 2009 |   |
|                                          |   | (in thousands, except per share amounts) |   |
| Net income                                    |   | $                                        | 5,400  |   |                           | $      | 4,460 |   |   | $ | 15,528 |   |   | $ | 13,251 |   |
|                                          |   |                                     |   |   |                           |   |   |   |   |   |   |   |   |   |   |   |
| Weighted average basic shares outstanding     |   |                                     | 2,017  |   |                           |   | 1,980 |   |   |   | 2,019 |   |   |   | 1,978 |   |
| Add:  Effect of dilutive securities |   |                                     | 12     |   |                           |   | 48 |   |   |   | 12 |   |   |   | 39 |   |
| Weighted average diluted shares outstanding   |   |                                     | 2,029  |   |                           |   | 2,028 |   |   |   | 2,031 |   |   |   | 2,017 |   |

| Earnings per share: |   |   |   |   |   |   |   |   |   |   |   |   |
|---------------------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|--------|
| Basic               |   | $      | 2.68   |   |   | $      | 2.25   |   |   | $      | 7.69   |   |   | $ | 6.70 |   |
| Diluted             |   | $      | 2.66   |   |   | $      | 2.20   |   |   | $      | 7.65   |   |   | $ | 6.57 |   |

|                   |   |   |   |   | Gross Unrealized |   |   |   |   |
|------------------------|--------|--------|--------|--------|------------------|--------|--------|--------|--------|
|                   |   | Cost   |   |   | Gains            |   |   | Losses |   |   | Fair Value |   |
| Short-term Investments |   |   |   |   |             |   |   |   |   |   |   |   |
| Corporate bonds        |   | $      | 6,672  |   |             | $      | 158    |   |   | $ | — |   |   | $ | 6,830 |   |
|                   |   |   |   |   |             |   |   |   |   |   |   |   |   |   |   |   |
| Long-term Investments  |   |   |   |   |             |   |   |   |   |   |   |   |   |   |   |   |
| Corporate bonds        |   | $      | 24,448 |   |             | $      | 753    |   |   | $ | — |   |   | $ | 25,201 |   |

----

----

| Item 2. | Management’s Discussion and Analysis of Financial Condition and Results of Operations |
|---------|---------------------------------------------------------------------------------------------|

|   | ● | Focusing on customer needs; |
|--------|---------|-----------------------------|

|   | ● | Expanding existing product lines and developing new products; |
|--------|---------|---------------------------------------------------------------|

|   | ● | Maintaining a culture of controlling cost; and |
|--------|---------|------------------------------------------------|

|   | ● | Preserving and fostering a collaborative, entrepreneurial management structure. |
|--------|---------|---------------------------------------------------------------------------------|

----

|           |   | Three Months endedSeptember 30, |   |
|----------------|--------|---------------------------------|--------|
|           |   | 2010                            |   |   | 2009 |   |
|           |   |                            |   |   |   |   |
| Fluid Delivery |   | $                               | 9,981  |   |   | $ | 9,535 |   |
| Cardiovascular |   |                            | 7,488  |   |   |   | 6,948 |   |
| Ophthalmology  |   |                            | 5,120  |   |   |   | 4,418 |   |
| Other          |   |                            | 4,567  |   |   |   | 4,291 |   |
| Total          |   | $                               | 27,156 |   |   | $ | 25,192 |   |

----

|           |   | Nine Months endedSeptember 30, |   |
|----------------|--------|--------------------------------|--------|
|           |   | 2010                           |   |   | 2009 |   |
|           |   |                           |   |   |   |   |
| Fluid Delivery |   | $                              | 30,264 |   |   | $ | 27,685 |   |
| Cardiovascular |   |                           | 23,525 |   |   |   | 21,439 |   |
| Ophthalmology  |   |                           | 14,091 |   |   |   | 14,948 |   |
| Other          |   |                           | 14,059 |   |   |   | 12,168 |   |
| Total          |   | $                              | 81,939 |   |   | $ | 76,240 |   |

----

----

----

| Item 3. | Quantitative and Qualitative Disclosures About Market Risk |
|---------|------------------------------------------------------------|

| Item 4. | Controls and Procedures |
|---------|-------------------------|

PART II

| Item 1.  | Legal Proceedings |
|---------------|-------------------|

| Item 1A.  | Risk Factors |
|----------------|--------------|

----

| Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds |
|---------|-------------------------------------------------------------|

|  Period               |   | Total Number ofSharesPurchased |   |   |  Average PricePaid per Share |   |   | Total Number of SharesPurchased as Part ofPublicly AnnouncedPlans or Programs |   | MaximumNumber ofShares thatMay Yet BePurchasedUnder the Plansor Programs (1) |
|----------------------------|--------|--------------------------------|--------|--------|-----------------------------------|--------|--------|-------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------------------|
| 7/1/2010 through 7/31/2010 |   |                           | 1,631  |   |                              | $      | 141.18 |                                                                          |   |                                                                              | 1,631 |   |   |   | 66,469 |   |
| 8/1/2010 through 8/31/2010 |   |                           | 6,875  |   |                              | $      | 140.26 |                                                                          |   |                                                                              | 6,875 |   |   |   | 59,594 |   |
| 9/1/2010 through 9/30/2010 |   |                           | 1,489  |   |                              | $      | 142.27 |                                                                          |   |                                                                              | 1,489 |   |   |   | 58,105 |   |
| Total                      |   |                           | 9,995  |   |                              | $      | 140.71 |                                                                          |   |                                                                              | 9,995 |   |   |   | 58,105 |   |

| (1)     | We have a program that was announced in April 2000 to purchase in open market or privately negotiated transactions up to 200,000 shares. The program has no expiration date but may be terminated at any time by the Board of Directors. |
|-----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Item 6.  | Exhibits |
|---------------|----------|

|   |          |                                                                                                                           |
|--------|---------------|--------------------------------------------------------------------------------------------------------------------------------|
|   | ExhibitNumber |                    Description  |
|   | 31.1          | Sarbanes-Oxley Act Section 302 Certification of Chief Executive Officer                                                        |
|   |          |                                                                                                                           |
|   | 31.2          | Sarbanes-Oxley Act Section 302 Certification of Chief Financial Officer                                                        |
|   |          |                                                                                                                           |
|   | 32.1          | Certification Pursuant To 18 U.S.C. Section 1350, As Adopted Pursuant To Section 906 of The Sarbanes – Oxley Act Of 2002 |
|   |          |                                                                                                                           |
|   | 32.2          | Certification Pursuant To 18 U.S.C. Section 1350, As Adopted Pursuant To Section 906 of The Sarbanes – Oxley Act Of 2002 |

----

SIGNATURES

|                              | Atrion Corporation(Registrant) |                    |
|-----------------------------------|--------------------------------|-------------------------|
|                              |                           |                    |   |
|                              |                           |                    |   |
| Date:  November 4, 2010 | By:                            | /s/ Emile A. Battat     |   |
|                              |                           | Emile A. Battat         |   |
|                              |                           | Chairman and            |   |
|                              |                           | Chief Executive Officer |   |

|                              |   |                         |   |
|-----------------------------------|--------|------------------------------|--------|
| Date:  November 4, 2010 | By:    | /s/ Jeffery Strickland  |   |
|                              |   | Jeffery Strickland           |   |
|                              |   | Vice President and           |   |
|                              |   | Chief Financial Officer      |   |

----