Illuminated dental and surgical retractor and kit including plurality of blades and blades recharging base

• US 6,080,105 A
• Filed: 06/26/1997
• Issued: 06/27/2000
• Est. Priority Date: 06/26/1997
• Status: Expired due to Fees

• Current Assignee: Robert A. Spears
• Original Assignee: Robert A. Spears
• Inventors: Spears, Robert A.
• Primary Examiner(s): Smith, Jeffrey A.
• Application Number:
  US08/882,913
• Time in Patent Office: 1,097 Days
• Field of Search: 600/191, 600/192, 600/193, 600/199, 600/201, 600/210, 600/212, 600/123, 600/237, 600/240, 600/241, 600/242, 600/245, 600/246, 433/31, 433/30, 433/140, 433/93
• US Class Current: 600/212
• CPC Class Codes: A61B 1/00105 characterised by modular construction
• CPC Class Codes: A61B 1/06 with illuminating arrangements
• CPC Class Codes: A61B 1/32 Devices for opening or enlarging the visual field, e.g. of a tube of the body dilators A61M29/00
• CPC Class Codes: A61B 17/24 for use in the oral cavity, larynx, bronchial passages or nose for medical inspection of cavities or tubes in the body A61B1/00; Tongue scrapers

Abstract

An illuminated retractor provides a handle and a blade, the blade having a forward portion composed of a light transmissive material. The forward portion blade of the extends from handle and is formed suitably for retraction of body tissue adjacent to a body cavity to be illuminated. The handle is manually grippable and houses an electrical power source which powers a lamp mounted in blade. The forward portion of the blade is formed of a light transmissive material in optical communication with the lamp and is formed for the emission of an unfocused and diffused light for general illumination of the cavity. A surface region of the blade body may be frosted or ground so as to widely diffuse light emitted from lamp, thereby illuminating a wide area of a body cavity. A plurality of interchangeable blades of diverse shapes includes a perio-ostial elevator tip and a dental cheek retractor. A blank blade is provided which can easily be customized into a variety of shapes. In another embodiment, the blade has at least one mirrored reflecting surface in combination with frosted diffused light emitting surfaces.

Claims

1. An illuminated retractor comprising:

(A) a manually grippable handle defining a blade insertion channel;

(B) a blade releasably attached to the handle, the blade sized for insertion into the blade insertion channel, the blade comprising;

(a) a forward portion formed of a light transmissive material formed for the emission of a diffused light for unfocused general illumination;

(b) electrical contacts carried by a surface of the blade; and

(c) latching means for attachment to the manually grippable handle;

(C) an electrical power source carried within the handle; and

(D) an electrically powered light emitting device in optical communication with the forward portion of the blade and mounted within the forward portion of the blade and electrically connected to the power source through the electrical contacts carried by the surface of the blade.

2. The illuminated retractor of claim 1 wherein the forward portion of the blade is formed with opposed side surfaces, each of the side surfaces being suitable for retracting tissue adjacent to a body cavity, and the blade is formed for emission of light from all sides.

3. The illuminated retractor of claim 1 wherein substantially an entire length of the blade is formed of a light transmissive material.

4. The illuminated retractor of claim 1 wherein the power source is carried by a circuit card within the handle, the circuit card having electrical connectors adapted for making electrical contact with the electrical contacts carried by the blade.

5. The illuminated retractor as set out in claim 1 wherein the blade is made of a transparent material.

6. The illuminated retractor as set out in claim 1 wherein, the blade is made of a translucent material.

7. The illuminated retractor as set out in claim 1 wherein, the blade has a frosted surface.

8. The illuminated retractor as set out in claim 7 wherein the frosted surface is formed by grinding the blade length.

9. The illuminated retractor as set out in claim 1 wherein, the electrical power source is a rechargeable battery.

10. The illuminated retractor as set out in claim 1, wherein the light emitting device is turned on by mounting the blade to the handle.

11. The illuminated retractor as set out in claim 1, wherein the lamp is held in an interior bore of the blade.

12. The illuminated retractor as set out in claim 1 wherein, the lamp is cast directly into the material of the blade.

13. The illuminated retractor as set out in claim 1, wherein the blade is formed of a material suitable for custom shaping.

14. The illuminated retractor as set out in claim 1, wherein the blade provides a center bar having a latch release and fastening means for attachment to the handle.

15. The illuminated retractor as set out in claim 14, wherein the blade additionally comprises left and right side bars adjacent to the center bar.

16. The illuminated retractor as set out in claim 1, wherein the blade has at least one mirrored reflecting surface.

17. A kit of parts for illuminating a body cavity of a person, the kit of parts comprising:

(A) a handle, enclosing a battery;

(B) a plurality of blades, releasably attachable to the handle, each blade having a lamp carried in a forward portion; and

(C) a recharging base, having a recharging blade, releasably attachable to the handle.

18. An illuminated dental and surgical retractor, comprising:

(A) a manually grippable handle defining a blade insertion channel, a tang recess and a battery compartment;

(B) a battery carried within the battery compartment;

(C) a first pair of electrical contacts, enclosed by the handle, in electrical communication with the battery; and

(D) a blade sized for insertion into the blade insertion channel, whereby the blade may be, releasably attached to the handle, the blade comprising;

(a) a rear portion, defining left and right side bars and a center bar, the center bar defining a lower cavity, the rear portion insertable into the manually grippable handle;

(b) fastening means, carried by the rear portion, for releasable attachment to the manually grippable handle, comprising a fastening tang;

(c) a forward portion extending from the handle;

(d) a lamp, enclosed within the forward portion of the blade; and

(e) a second pair of electrical contacts, in electrical communication with the lamp, carried by the blade, adjacent to the first pair of electrical contacts when the blade is attached to the handle, whereby upon insertion of the blade into the handle the lamp turns on.