the beating heart eliminated some of the neurological problems,

跳动的心脏可以避免一些神经的问题
and the small incision made people recover a little bit faster.

而且切口小让患者回复得更快
So they were different elements of the product that we liked.

这些都是产品不同的要素
When we moved from the kind of only a couple vessels

我们从两根血管的手术转变到
to many vessels,

多根血管
we're giving up on some of the functionality

我们由于增加了手术的切口
associated with the product by cutting up patients

相当于放弃了产品的一些功能
a little bit more and that's another feature that

这也是熊彼特和其他学者像
Schumpeter and others have talked about,

滕森克莱顿·克里斯坦森提到的
including Clay Christensen, who talks about disruptive innovation

破坏性创新
that when you make a product change

你要改变一个产品时
it is often the case that you don't just improve,

很多时候你不仅改进了产品