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, 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 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 an active runner usually training for his next marathon, owns a Mazda MX-5 Miata, and plays Dungeons & Dragons. Jeff has three grown kids and a golden retriever.