Axillary center line positioning device for central vein pressure measurement

By designing an axillary midline positioning device that includes a ruler, a fixed axillary bar, a movable axillary bar, and a locking block, the problem of inaccurate axillary midline position was solved, thereby improving the accuracy of central venous pressure measurement.

CN224540206UActive Publication Date: 2026-07-24FUJIAN CANCER HOSPITAL (FUJIAN CANCER INST FUJIAN CANCER PREVENTION & CONTROL CENT)
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Patent Information

Application Number
CN202520809803.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-07-24
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

In existing technologies, the mid-axillary line position is not accurately located during central venous pressure measurement, resulting in inaccurate pressure readings.

Method used

A midaxillary line positioning device was designed, comprising a vertical ruler, a fixed axillary bar, a movable axillary bar, and a movable locking block. The device accurately positions the midaxillary line by coordinating the centering indicator line and the locking block, and then connects to a central venous pressure measuring mechanism via a flexible tube for pressure measurement.

Benefits of technology

This improved the accuracy of mid-axillary line localization, thereby enhancing the accuracy of central venous pressure measurement.

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Abstract

The utility model relates to a central axillary line positioning device for central vein pressure measurement, which comprises a vertical ruler, a fixed axillary rod is arranged at the bottom of the ruler, and a movable axillary rod for lifting adjustment on the ruler is arranged right above the fixed axillary rod. A movable clamping block used for being adjusted on the ruler in a lifting mode is arranged between the movable axilla rod and the fixed axilla rod, a centering indication line is arranged on the movable clamping block, and a clamping opening is formed in the position, corresponding to the centering indication line, of the movable clamping block and used for being connected with a hose in a clamping mode. The axillary center line found by the device is more accurate than a visual inspection mode, and the accuracy of central vein pressure measurement is improved.
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