Depression Treatment Care

Bipolar, we have all tried without sucess,to convince him he needs councelling and anti-depressants to help him get through this.This he consistantly denies will help with the way he feels.This has gone on for years,but getting worse by the day.He lives alone,and is so sad all the time,I know he constantly thinks of suicide,His parents are reluctant to say the least to section him. I know he has had failed relationships and now feels totally un-loveable,obviously another symptom of the depression.However,I’ve been thinking what can possibly be done to help him.I know he absolutely adores animals,especially dogs,he often looks after his friends dog.Do you think a dog would help? Someone to love,someone to love him,be there for him,make him go out,give him some incentive to want to go on for.I have written about him before on this site as has is mum.Just got to think of something, what do you think,could it help?