Seal for a medical handpiece
First Claim
1. A seal for sealing a tool end of a medical straight or contra angle handpiece, said seal comprising a fixed component, a gasket of compressible elastic material, a spring which urges the gasket against the fixed component, and a rotating disk located in the immediate vicinity of the seal.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a seal in the tool side of a straight or contra angle handpiece head for sealing the interior of straight or contra angle handpieces. The seal is characterised by a spring, which prestresses a gasket of compressible elastic material against a fixed component and a rotating disk located in the immediate vicinity of the seal. Moreover, the present invention relates to a straight or contra angle handpiece with such a seal.
-
Citations
22 Claims
-
1. A seal for sealing a tool end of a medical straight or contra angle handpiece, said seal comprising
a fixed component, a gasket of compressible elastic material, a spring which urges the gasket against the fixed component, and a rotating disk located in the immediate vicinity of the seal.
-
11. A seal for sealing a tool end of a medical straight or contra angle handpiece having a rotatable tool carrier, said seal comprising
a fixed component surrounding a portion of said tool carrier, a gasket of compressible elastic material, a spring which urges the gasket against the fixed component, a rotating disk detachably connected to the tool carrier and located in the vicinity of the seal, a substantially rigid washer interposed between the gasket and rotating disk, and a substantially rigid washer interposed between the spring and the gasket.
-
15. A medical straight or contra angle handpiece with an outer sleeve containing a shaft to drive a rotatable tool carrier adapted to receive a treatment tool, said handpiece having a seal assembly comprising
a fixed component, a gasket of compressible elastic material, a spring which urges the gasket against the fixed component, and a rotating disk located in the immediate vicinity of the seal.
Specification