Depth measuring device
OwnerVincent Vaillancourtinventor
Life of this patent
Estimating the term…
Abstract
The depth measuring device employs a solid needle with a slidable rider as well as a transparent tube which is provided with a graduated scale and a closed bottom or marking lines. During penetration through the skin into a vascular implant device, the rider slides along the needle. When the needle is returned into the transparent tube and properly seated, with the end of the needle on the bottom or at the marking lines, the position of the rider can be read from the scale to indicate the depth of penetration of the needle. An appropriately sized right-angled Huber needle can then be selected for use with the implanted device.
Claims13
A depth measuring device for an implanted vascular access port comprising
- a holder;
- a straight needle of solid construction secured in said holder and having a sharp end for penetrating through a skin layer into and bottoming on an implanted vascular access port;
- a rider slidably mounted on said needle;
- a tube removably mounted on said holder over said needle, said tube being removable from said holder to expose said needle for penetration through a skin layer;
- and
- a graduated scale on said tube for measuring the distance of said rider to said sharp end of said needle after withdrawal of said needle from the vascular access port and remounting of said tube on said holder to indicate the depth of penetration of said needle into the vascular access port.
A depth measuring device comprising
- a holder;
- a needle secured in said holder and having a free projecting sharp end for penetrating a skin layer and bottoming on a vascular access port under the skin layer;
- a rider slidably mounted on said needle;
- a transparent tube removably mounted on said holder over said needle to expose said needle for penetration through a skin layer;
- and
- a scale on said tube for measuring the distance of said rider to said end of said needle after withdrawal of said needle from a vascular access port and remounting of said tube on said holder to indicate the depth of penetration of said needle into the vascular access port.
Dependencies are inferred from the claim text.