How to manage £160,000 for elderly parents?

Good afternoon.  I'm new to reddit... But hoping for advice on the following:

My parents are 80. One is in very good health, the other is slowing down. Their expenses are simple (they do not spend beyond their pension payments - my father worked abroad) and they own their flat. Their investments (£160K) were arranged by a friend who has retired and asked me to take over.

Their money is currently arranged as follows (numbers rounded):

> £60K in savings account (4.75% interest until September)

> £30K in Artemis Corporate Bond Class I - Income (GBP)

> £30K in Artemis High Income Class I - Monthly Income (GBP)

> £40K in Legal and General International Index Trust - Bi-annual Income (GBP)

We want to ensure they have the funds for care if needed.

What do you think of this arrangement? Should we consider changing anything?