Negative pressure structure for CT positioning head clip

Through the coordinated design of the base, forehead pad, negative pressure mechanism and swing arm, combined with the installation components, telescopic components and one-way valve components of the negative pressure mechanism, the problems of large clamping force fluctuation, release delay and operation difficulty in CT positioning head clamps are solved, achieving stable head fixation and convenient operation, and improving CT imaging quality.

CN121622087BActive Publication Date: 2026-06-30YOFO MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YOFO MEDICAL TECH CO LTD
Filing Date
2026-02-04
Publication Date
2026-06-30

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Abstract

This invention discloses a negative pressure structure for a CT positioning head clamp, comprising: a base, a forehead retainer pad on the top of the base, negative pressure mechanisms on both sides of the base, and a swing arm rotatably mounted on the top of each negative pressure mechanism. Each negative pressure mechanism includes a mounting assembly, which is fixedly mounted on one side of the base. A telescopic assembly is movably fitted inside the mounting assembly and engages with an arc-shaped groove. A one-way valve assembly is located inside the telescopic assembly. A connecting assembly is located on the top of the mounting assembly for mounting the swing arm. This invention achieves a stable clamping mechanism based on negative pressure, effectively solving the problems of large clamping force fluctuations, release delays, and operational difficulties in existing friction clamping systems. It offers advantages such as providing stable head fixation, reducing clamping force fluctuations and reset delays, improving CT imaging quality, and enhancing operational convenience.
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Citation Information

Patent Citations

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