Air tightness detection method for medical products and air tightness detection system of medical products

An air tightness detection and product technology, which can be used in the use of liquid/vacuum for liquid tightness measurement, and by measuring the acceleration and deceleration rates of fluids, which can solve problems such as poor accuracy of detection results.

Inactive Publication Date: 2018-10-16
MAIDER MEDICAL IND EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide an airtightness detection method for medical products and an airtightness detection system for medical products, so as to solve the problem of poor detection result accuracy in the airtightness detection method for medical products in the prior art

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  • Air tightness detection method for medical products and air tightness detection system of medical products
  • Air tightness detection method for medical products and air tightness detection system of medical products

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides an air tightness detection method for medical products and an air tightness detection system of medical products. The air tightness detection method for the medical products comprises the steps of s1, introducing gas with preset pressure into a standard test piece and a medical product to be detected through an inflation pipeline; s2, measuring the pressure drop delta p1 ina standard test piece in a first preset time length t and the pressure drop delta p2 in a medical product to be detected in the first preset time length t, calculating the difference value delta p between the pressure drop delta p1 and the pressure drop delta p2; and s3, comparing the difference value delta p with a preset standard value p to judge whether the air tightness detection result of themedical product to be detected is qualified or not. The air tightness detection method for the medical products solves the problem that the accuracy of detection results is poor in the air tightnessdetection method of the medical products in the prior art.

Description

technical field [0001] The invention relates to the technical field of medical device detection, in particular to a method for detecting air tightness of medical products and a system for detecting air tightness of medical products. Background technique [0002] Existing medical products, such as indwelling needles, disposable infusion sets, etc., need to be tested for air tightness after assembly, such as figure 1 As shown, the air-tightness test of the indwelling needle usually passes the gas of predetermined pressure into the conduit 13 at the three-way joint 15, and then seals the indwelling needle for a period of time. If the air pressure in the indwelling needle does not change or hardly changes, then It shows that the airtightness of the indwelling needle is better. On the contrary, if the air pressure in the indwelling needle changes greatly, it means that the needle cap 11 or the catheter 13 of the indwelling needle has air leakage or the indwelling needle has poor ...

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 郑龙
Owner MAIDER MEDICAL IND EQUIP
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