Please use the 'data-options' instead to define all the properties.
<INPUT class='easyui-textbox' ID='txtPatient' data-options="label:'Patient',labelWidth:70,width:350">
Or override the $.fn.textbox.parseOptions to parse the 'width' and 'height' properties.
<script>
(function($){
var parser = $.fn.textbox.parseOptions;
$.fn.textbox.parseOptions = function(target){
var extOpts = $.parser.parseOptions(target, ['width','height']);
return $.extend({}, extOpts, parser(target));
}
})(jQuery);
</script>