6 results about "Subarachnoid space" patented technology

This utility model discloses an anesthesia puncture needle, including an outer needle tube and a needle hub connected to one end of the outer needle tube; it also includes an inner needle body nested inside the outer needle tube, with one end extending to the outside through the opening of the outer needle tube, and the other end extending into the needle hub. The protruding end of the inner needle body is conical, and at least one collection hole is opened on its outer wall near the end. This utility model relates to the field of medical anesthesia technology. This anesthesia puncture needle, through the cooperation of the inner needle body and the outer needle tube, can facilitate the puncture needle to enter the subarachnoid space. At the same time, it can pull the piston collector to draw cerebrospinal fluid from the end of the inner needle body and store it in the internal cavity of the piston collector, so that it can be mixed with the colorimetric solution injected through the colorimetric branch tube, thereby enabling colorimetric treatment of the cerebrospinal fluid, facilitating rapid diagnosis by medical personnel. In this process, the colorimetric solution will not come into contact with the human body, avoiding harm to the human body.

This utility model discloses a lumbar puncture needle with monitoring function, comprising: a needle body, with a puncture needle main body internally connected to the needle body. The puncture needle main body is used to detect puncture depth and monitor cerebrospinal fluid pressure. The puncture needle main body includes an outer needle and an inner needle, with the inner needle located inside the outer needle. A gap is reserved between the outer and inner needles. A signal receiving mechanism is provided at the top of the outer needle. Both the outer and inner needles are electrically connected to the signal receiving mechanism via a point-to-line connection. This utility model provides a lumbar puncture needle with monitoring function, consisting of a system and a puncture needle main body. It can issue an alarm when the puncture needle tip contacts the cerebrospinal fluid in the subarachnoid space of the lumbar spine, and can monitor the cerebrospinal fluid pressure in real time during cerebrospinal fluid collection. Through precise puncture depth feedback and real-time cerebrospinal fluid pressure monitoring, doctors can more accurately locate the puncture point, reduce surgical errors, and improve the success rate of surgery. Real-time monitoring of cerebrospinal fluid pressure helps to detect abnormal intracranial pressure in a timely manner, prevent serious complications such as brain herniation, and ensure patient safety.

Magnetic resonance imaging (MRI) is used to image the slow flow of cerebrospinal fluid (CSF) in subarachnoid and perivascular spaces, amongst other regions of the brain and central nervous system. The slow CSF flow imaging can be provided by using low velocity’ encoding (VENC) and an efficient data acquisition. Tailored image processing can be used to further improve the accuracy, specificity, and visualization of CSF flow dynamics.

The invention is directed to a method and apparatus for early warning of cerebral vasospasm after subarachnoid hemorrhage using brain imaging equipment to identify blood leakage within the subarachnoid space to detect brain zones with increased risk of cerebral vasospasm.

The application relates to the field of interventional medical technology, in particular to a percutaneous interventional venous sinus puncture access device. The access device is formed by the mutual cooperation of a balloon catheter, a deflecting catheter and a puncture guide wire, can puncture into the subarachnoid cavity in the cranial cavity on the venous sinus without damaging the brain, break the dura mater and arachnoid, construct a stoma between the pontocerebellar angle pool and the inferior petrosal sinus, and make the cerebrospinal fluid flow from the subarachnoid cavity to the venous sinus, to the jugular vein and to the heart, and participate in blood circulation. The access device can also be used for delivering a shunt, so that the hydrocephalus which can only be effectively treated by operation in the past can be treated by a minimally invasive interventional method, the access device is not used for surgical open operation, the intraoperative trauma is reduced, the operation time is saved, and the possibility of postoperative infection is greatly reduced.