Vintage Antique Medical Spring Injection Lancet Trocar (?)

Vintage/Antique Medical Spring Injection Lancet/Trocar (?)

2 3/4" long

When silver stem is pushed, a pointed metal tube ejects out of flared tip

No markings

Have no idea what it really is

Some research indicates it could be a lancet

Any ideas or comments would be welcomed!!

Please see photos for detailed description

As found at estate sale