PRESSURE-INDICATING SYRINGE

摘要

Disclosed is a pressure-indicating syringe, comprising a syringe body (1) and a push rod (2). The syringe body (1) is provided with a branch pipe (3). The branch pipe (3) is provided with a sealed bladder bubble (4). The inner wall of the tail end of the syringe body (1) is provided with a ring of protrusions (5). The middle edge of a strengthening rib (6) of the push rod (2) is provided with a spherical projection (7). A notch (8) is provided below the rib surface of the spherical protrusion (7). The pressure-indicating syringe has the advantages of a high puncture success rate, high safety, low costs, simple operation, and being easy for novices to use and facilitating teaching. Even a new student from a medical college may also be skilled enough to complete the spinal dural puncture operation. It can be widely applied to surgical anaesthesia and clinical examinations and treatments of a variety of medical institutions.