For medical devices that act directly or indirectly on the human body, their sealing is particularly important.On the one hand, it is the requirement of the use environment and service life of medical devices. Good sealing is the prerequisite for the normal operation of medical devices in liquid and corrosive environments to protect device parts from liquids and gases.On the other hand, good sealing can prevent bacteria and dirt from remaining inside medical devices, and reduce wound infections and virus transmission caused by equipment hygiene.therefore,Sealing testerMedical devices are widely used, and sealing testing is the highlight of device production and manufacturing.

Hirays Technology puncture device air tightness detector product picture

Hirays TechnologyTestedpuncture deviceProduct real shots

As a sealing testing expert and equipment developer, Hirays Technology has also conducted in-depth research on the sealing testing of medical devices. We found that in order to achieve high-precision sealing testing of medical devices, the following two major problems need to be solved.The first is to conduct non-destructive testing of medical devices, and the second is to solve the impact of the complex shape of medical devices on sealing testing.

Why should we implement non-destructive testing?This depends on the particularity of the medical device. For example, a human endoscope has a camera. In order to protect the lens from scratches and wear during inspection, which will affect the imaging quality, and the sealing of medical devices is closely related to the safety of surgery, in order to avoid medical accidents caused by performance damage, medical devices need to undergo non-destructive sealing testing.In addition, the pressure of medical equipment also needs to be taken into account. Failure to control the testing pressure during testing will cause damage to the equipment.

Why are the complex shapes of medical devices a difficult problem to detect?This refers to the shape of the medical device itself, such as surgical trocars, scalpel handles, liquid component analyzers, medical irrigation guns, infusion tubes, urine bags, etc., with different shapes and materials, which determine their vulnerability, deformation, and complex structure. This has become a difficult problem for testing the sealing of medical devices.It is difficult to fix during sealing and its small size makes it difficult to accurately control the inspection.

Hirays TechnologyMedical flushing gun sealing tester(Direct detection)

In order to achieve non-destructive testing and reduce the impact of device shape on testing, Hirays Technology uses molds for indirect testing, or direct testing for medical devices with inflatable ports.Direct detection means directly inflating the device and monitoring changes in air pressure, while indirect detection requires the assistance of a mold and is generally used for medical devices without an inflation port.Next, we focus on indirect detection.

Hirays Technology Teeth Scrubber Waterproof Tester(indirect detection)

Hirays Technology is making a suitable mold and tooling for the equipment that needs to be tested, and placing the equipment into the mold. After the upper and lower molds are closed, a sealed testing space will be formed, which is conducive to achieving high-precision sealing testing.The mold is not only used as a container for instrument testing, but also as a protective device during testing. The mold can isolate the external influence on the instrument during testing and achieve non-destructive testing.

Hirays Technology Teeth Scrubber Waterproof TesterMold

After the sealing detector is started, the tooling will inflate the mold. The changes sensed by the precision pressure sensor of the sealing testing equipment are transmitted to the sealing testing system. Finally, through a series of calculations, the gas leakage value can be obtained. The sealing performance and IP waterproof level of the device are then detected based on the leakage value.During this process, the pressure sensor will strictly control the detection pressure and perform non-destructive testing within the tolerable range of the instrument.

The above content is the application of Hirays Technology's sealing tester in the medical industry. This instrument can detect the sealing of mobile phones, auto parts, batteries, home appliances, smart wearables and other products. It is favored by manufacturers because of its high detection accuracy, high efficiency and low cost.

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