Exhibit 31

CERTIFICATION
Pursuant to 18 U.S. C. Section 1350,
as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2003

I, Arch B. Gilbert, certify that:

	1.	I have reviewed this quarterly report on Form 10-Q of InterWest Medical Corporation;

	2.	Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading;

	3.	Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

	4.	I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

	a.	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by others within those entities, particularly during the period in which this quarterly report is being prepared;

	b.	evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

	c.	disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

I have disclosed, based on my most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the Audit Committee of the Company’s Board of Directors (or persons performing the equivalent function):

	a.	all deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

	b.	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.


/s/ Arch B. Gilbert Arch B. Gilbert President, Chief Executive Officer and Chief Financial Officer		January 20, 2005

INTERWEST MEDICAL CORP 10-Q/A