4 results about "Spinal needles" patented technology

The present invention relates to a spinal needle that clearly identifies the presence of cerebrospinal fluid (CFS) to dispense a drug or anaesthetic in the correct direction and site of the meninges. The response of the sensor to the presence of CFS does not depend on environmental factors and is performed quickly to prevent excessive loss of CFS in the patient. The spinal needle comprises a hub having a proximal end and a distal end, said hub comprising a transparent tank arranged at the proximal end of the hub that is configured to receive CFS, an expandable CFS sensor arranged inside the transparent tank and a connection port arranged at the distal end of the hub configured to couple to a device for medical fluids, and a cannula comprising a tip fluidically connected to the proximal end of the hub.

The present disclosure relates to an improved spinal needle apparatus 10 comprising a stylet assembly 12 including a stylet hub 14 and a stylet 16; a needle assembly 18 including a needle hub 20, a housing 22 and a hollow needle 24. The apparatus is configured to enhance precision and safety during spinal procedures, with features such as an ergonomic stylet hub 14, a secure pressure fit connection between the stylet hub 14 and needle hub 20, and a tube insert 48 accommodating various needle gauges. The apparatus facilitates accurate needle placement and verification of cerebrospinal fluid return, improving outcomes in lumbar punctures and spinal anesthesia.

The invention relates to a method and a device using said method that determine the time constant and thus the cerebrospinal fluid pressure in order to calculate, at high speed and with high accuracy, intracranial pressure (ICP) measurements performed with a spinal manometer of the cerebrospinal fluid (CSF) pressure value, without requiring the characteristics of the spinal needle used for lumbar puncture.

The utility model relates to the technical field of medical instruments, in particular to a lumbar anesthesia needle. The outer tube is hollow and tubular, and the far end of the outer tube is provided with a dosing through hole; the inner core is arranged in the outer tube; a limiting module; a through hole is formed in the outer pipe, the inner pipe is installed on the outer pipe and comprises a first module and a second module, the first module and the second module are movably installed through a positioning column, and the friction force between the through hole and the outer pipe is adjusted through the installation gap between the first module and the second module; and a sharp puncture point is arranged on the inner core or the outer tube. The limiting module is arranged on the outer tube and is locked after puncture is in place, the needle body is prevented from further going deep, iatrogenic injury caused by misoperation is reduced, and operation safety is improved.