Avoiding form submit when used in submit button.

[dmiranda2791]

I'm using it in the submit button of a form and it's preventing the submission. Here it is my code. <md-button type="submit" ng-disabled="patientSearchForm.$invalid" class="md-raised md-primary md-button" scroll-to="search-result" container-id="view-container" offset="90"> SEARCH </md-button>