Needle-less system to draw blood patented by Google


Google has an active branch within the organization that works on a variety of life science issues, like the contact lenses that are being developed that may include a means to monitor glucose levels. Although not “sexy” the work could be some of the most important the company pursues. A new patent application for a needle-free system to draw blood shows yet another project Google has been working on.

The patent application describes a device that fires a microparticle into the skin using a gas-powered mechanism. Negative pressure would then enable the collection of a small amount of blood from the point where the microparticle enters the skin layer.

The description provided by Google indicates the microparticle could penetrate to a distance of .25 mm to 2 mm. This is sufficient to induce a “micro-emergence” of blood released by the impacted tissue, an amount described by Google as what you might get from a mosquito bite. Although this is a small amount, it would be sufficient for medical testing purposes in a variety of situations.

Google’s application explains part of the success of the system is the fact that the size of the microparticle is below the threshold that would trigger a pain sensation for a patient. Google notes that the use of lancets of increasing smaller sizes is that they become too weak to pierce the skin, which was part of the reason for working on a different solution.

Google describes devices using this new technology that are designed for single use as well as multi-use devices that may be worn similar to a smartwatch. However, it is not clear whether Google would be able to produce and get the necessary approvals to make this device an actual product. Anyone who does not enjoy having to give up a small amount of blood via a pin prick certainly hopes so.

source: USPTO
via: Waltonian

About the Author: Jeff Causey

Raised in North Carolina, Jeff Causey is a licensed CPA in North Carolina. Jeff's past Android devices include an HTC EVO, a Samsung Note II, and an LG G3, and a Motorola Moto X Pure Edition along with a Samsung Galaxy Tablet 10.1. He currently uses a Samsung Galaxy S8 and (very rarely) a Nexus 7 (2013). He is also using a Verizon-branded Motorola Moto Z Play Droid supplied by his job. Jeff used to have a pair of Google Glass and a Moto 360 Sport in his stable of gadgets. Unfortunately, his wife and kids have all drunk the Apple Kool-Aid and have i-devices. Life at home often includes demonstrations of the superiority of his Android based devices. In his free time, Jeff is active in his church, a local MINI Cooper car club, and his daughter's soccer club. Jeff is married, has three kids, and a golden retriever.