Adapter for light emitting apparatus used in the medical field

A light emitting apparatus including a light source requiring a selected polarity of power supply connected to a supply conduit through which electrical power is transmitted and an adapter connected between the light source and the supply conduit, said adapter having an adapter body with a first body end, a second body end, and a substantially straight longitudinal axis extending between the first and second body ends, wherein the first body end is adapted for attachment to one of the supply conduit and the light source and the second body end is adapted for attachment to the other of the supply conduit and the light source, the adapter body comprising

• first and second electrical leads connectible to the power supply, and being selectively switchable without disassembly by a manual operation to move the electrical leads of the adapter relative to the supply conduit to match the polarity of electrical power transmitted from the supply conduit to the selected polarity required by the light source,
• wherein the first electrical lead comprises a first end and the second electrical lead comprises a second end, said first and second ends being axially offset along the longitudinal axis of the adapter body such that the first end is located a first distance from the first body end, and the second end is located a second distance from the first body end where the first distance is not equal to the second distance,
• wherein the adapter comprises a hollow space for releasable accommodation of a coupling spigot, and
• wherein said first and second ends are located at the periphery of said hollow space.

A handpiece system comprising

• a supply hose having a distal end coupling device with axially offset supply contacts for supplying electrical power transmission from an external power source,
• a handle sleeve having a light source contained therein with receiving contacts for connecting the light source to receive electrical power from said coupling device, and
• an adapter having an adapter body connectible between said coupling device and light source and having first and second electrical leads connectible to the power source, wherein the adapter body has a first body end, a second body end, and a substantially straight longitudinal axis extending between the first and second body ends, wherein the first body end is adapted for attachment to one of the coupling device and the light source and the second body end is adapted for attachment to the other of the coupling device and the light source, wherein the adapter is selectively switchable without disassembly by a manual operation to move the electrical leads of the adapter relative to the supply contacts of the supply conduit to match the polarity of electrical power transmitted from the power source to that needed by the light source, and wherein the first adapter electrical lead comprises a first end and the second adapter electrical lead comprises a second end, said first and second ends being axially offset along the longitudinal axis of the adapter body such that the first end is located a first distance from the first body end and the second end is located a second distance from the first body end where the first distance is not equal to the second distance, and wherein the adapter comprises a hollow space for releasable accommodation of a coupling spigot, and wherein said first and second ends are located at the periphery of said hollow space.

An adapter for use in a handpiece system that includes a supply conduit and a medical instrument having an electrical operating element thereon, the adapter comprising:

• an adapter body and first and second adapter electrical leads with respective first and second axially offset slide contacts, wherein the first and second adapter electrical leads are connectible to a voltage or power source, and wherein said adapter body has a first body end, a second body end, and a substantially straight longitudinal axis extending between the first and second body ends, wherein the first body end is adapted for attachment to one of the supply conduit and the medical instrument and the second body end is adapted for attachment to the other of the supply conduit and the medical instrument;
• wherein, when the adapter is in place between the supply conduit and the medical instrument and the slide contacts are connected, electrical power is received by the adapter from the supply conduit and transmitted through the adapter to the operating element, and
• wherein the adapter is selectively switchable without disassembly by a manual operation to move the adapter electrical leads relative to the supply conduit to match a polarity of the electrical power transmitted from the supply conduit to a polarity required by the operating element, wherein the adapter comprises a hollow space for releasable accommodation of a coupling spigot, and wherein said first and second axially offset slide contacts are located at the periphery of said hollow space.

A light emitting apparatus comprising:

• a light source requiring a selected polarity of power supply connected to a supply conduit through which electrical power is transmitted;
• and
• an adapter connected between the light source and the supply conduit, said adapter having a first body end, a second body end, a substantially straight longitudinal axis extending between the first and second body ends, wherein the first body end is adapted for attachment to one of the supply conduit and the light source and the second body end is adapted for attachment to the other of the supply conduit and the light source, the adapter comprising first and second adapter electrical leads and respective first and second axially offset slide contacts, wherein the first and second adapter electrical leads are connectible to a voltage or power source, said adapter being selectively switchable without disassembly by a manual operation to move the adapter electrical leads relative to the supply conduit to match the polarity of electrical power transmitted from the supply conduit to that required by the light source, wherein the first adapter electrical lead comprises a first end and the second adapter electrical lead comprises a second end, said first and second ends being axially offset along a the longitudinal axis of the adapter such that the first end is located a first distance from the first body end and the second end is located a second distance from the first body end, where the first distance is not equal to the second distance, wherein the adapter comprises a hollow space for releasable accommodation of a coupling spigot, and wherein said first and second ends are located at the periphery of said hollow space.

A handpiece system comprising

• a supply hose having a distal end coupling device with supply contacts comprising axially offset slip rings for supplying electrical power transmission from an external power source,
• a handle sleeve having a light source contained therein with receiving contacts for connecting the light source to receive electrical power from said coupling device, and
• an adapter connectible between said coupling device and light source, said adapter having a first body end, a second body end, and a substantially straight longitudinal axis extending between the first and second body ends, wherein the first body end is adapted for attachment to one of the supply hose and the light source and the second body end is adapted for attachment to the other of the supply hose and the light source, the adapter comprising first and second adapter electrical leads and respective first and second axially offset slide contacts connectible to the supply contacts, wherein the first and second adapter electrical leads are connectible to the external power source, wherein the adapter is selectively switchable without disassembly by a manual operation to move the transmission leads relative to the supply hose to match the polarity of electrical power transmitted from the power source to that needed by the light source, wherein the adapter comprises a hollow space for releasable accommodation of a coupling spigot, and wherein said first and second axially offset slide contacts are located at the periphery of said hollow space.