What is the name of this pattern?

The bat is a very good auspicious image in traditional Chinese culture, because "bat" harmonizes with "Fu", so things with bat patterns and decorations are often given the meaning of "Fu". The Bat

This knot has bats and the character for longevity, which is sure to contain the wish for "good fortune and longevity"; and the Chinese knot below has two obvious heart shapes, and the knot shape is connected, which is supposed to be "concentric", "combined" and "connected". It should mean "concentricity", "union" and "accessibility". (As an aside, China Unicom uses a similar pattern as its logo, which is very relevant.)

So, although this ornament is "blessed with longevity", because the meaning of "full" is commonly used in Chinese knots to express the "Wanquan" knot, which is commonly used as a customary practice, and since there is no Wanquan knot here, it would be a good idea to say that the "Wanquan" knot has been used for a long time. Since there is no "Wanquan" knot here, it would be a bit of a stretch to say "double-full"; taking the knot below into account, I think this ornament should be called "Blessed with Life".

This pattern is suitable for elders, not necessarily limited to the elderly.

^-^I hope my answer is helpful to you.