Author: Zhang Hanwen
Hypertensive cerebral hemorrhage is one of the most serious complications of hypertension, which often occurs in the elderly aged 50-70. Hypertension often leads to pathological changes in the arterioles at the bottom of the brain. The prominent manifestations are hyaline or fibroid degeneration and focal hemorrhage, ischemia and necrosis on the wall of these arterioles. Cerebral edema after cerebral hemorrhage reached a peak in about 48 hours, and gradually subsided after 3 to 5 days, and lasted for 2 to 3 weeks or longer. Cerebral edema can increase intracranial pressure and cause cerebral hernia, which is the main factor affecting the mortality and functional recovery of cerebral hemorrhage.

About half of neurosurgery patients are patients with cerebral hemorrhage. Puncture is the most cost-effective and easy to popularize cerebral hemorrhage treatment in primary hospitals. Surgery has a huge impact on the survival of patients, but because the existing positioning methods have great defects. Therefore, general doctors perform operations based on experience, and the popularity of precise positioning methods is extremely low.

Deruofei stereotactic system service system is the first of its kind in the world. It only needs a price of less than 100,000 to complete high-precision non-invasive laser positioning in 10 minutes. More accurate, faster, cheaper and easier to learn.

Its characteristics are 1. Visual laser orientation, non-invasive and fast restoration of CT data, and clear marking of planning direction. 2. Integration of directional planning, visual direction planning, precise fixation of surgical direction.
Design and research methods: 1. On-site follow-up, the whole scene participated in a puncture operation, filmed and recorded the whole process for analysis. 2. Expert interviews, dialogues 8 doctors outside the gods, 3 technical leaders, mostly dealers who have experienced prototypes, and sorted out their dialogues. 3. Brainstorming, brainstorming possible technical routes with engineers. The final decision is to design products that can be mass-produced within 3-5 years (medical product audit and verification will be longer than ordinary products). The design is based on the simplified L-shaped products based on the functional structure of the original door frame. The principle model of the project is the base point for design divergence.

The design of the door frame of the first generation product is stable, but the moving and fixing method of the split design has brought some troubles in actual use, so the company decided to simplify the design. The L-type new product reduces a target surface laser, reduces the equipment production The defective rate, simplifies the structure, and is suitable for fixed tracks to guide users to operate, avoiding the difficulty of simultaneous multi-directional alignment.

Link to original work: https://pinwall.cn/project/42186