Index: ssts-tousse/src/main/java/com/forgon/disinfectsystem/tousse/instrumentinstance/service/InstrumentInstanceManagerImpl.java
===================================================================
diff -u -r34711 -r34712
--- ssts-tousse/src/main/java/com/forgon/disinfectsystem/tousse/instrumentinstance/service/InstrumentInstanceManagerImpl.java	(.../InstrumentInstanceManagerImpl.java)	(revision 34711)
+++ ssts-tousse/src/main/java/com/forgon/disinfectsystem/tousse/instrumentinstance/service/InstrumentInstanceManagerImpl.java	(.../InstrumentInstanceManagerImpl.java)	(revision 34712)
@@ -1761,7 +1761,7 @@
 		if(instrumentInstance == null){
 			throw new SystemException("id=" + vo.getId() + "的器械实例不存在或者已删除");
 		}
-		if(!StringUtils.equals(vo.getUdi(), instrumentInstance.getUdi())){
+		if(StringUtils.isNotBlank(vo.getUdi()) && !StringUtils.equals(vo.getUdi(), instrumentInstance.getUdi())){
 			String countSql = String.format("select count(*) from %s po where po.udi = '%s' and po.id <> %s",
 					InstrumentInstance.class.getSimpleName(),
 					vo.getUdi(),