Automatic loss of resistance detection syringe for epidural anesthesia and laparoscopy; epidural pack consisting of an automatic loss of resistance syringe for epidural anesthesia and laparoscopy with other components, namely, injection needle, catheter and syringe filter for use in epidural anesthesia

automatic loss of resistance detection syringe for epidural anesthesia and laparoscopy; epidural pack consisting of the automatic loss of resistance syringe described above with other components, such as needle, catheter and filter that might be used in epidural anesthesia