Composite extraction pen

• US 10,321,976 B2
• Filed: 12/23/2016
• Issued: 06/18/2019
• Est. Priority Date: 06/02/2016
• Status: Active Grant

• Current Assignee: Hari Mark Reyes, John Marshall Arthur Turner
• Original Assignee: Hari Mark Reyes, John Marshall Arthur Turner
• Inventors: Reyes, Hari Mark, Turner, John Marshall Arthur
• Primary Examiner(s): Lucchesi, Nicholas D
• Application Number:
  US15/390,335
• Publication Number:
  US 20170348070A1
• Time in Patent Office: 907 Days
• CPC Class Codes: A61C 1/0015 Electrical systems
• CPC Class Codes: A61C 1/088 Illuminating devices or attachments for examination of the mouth A61B1/24 and A61B1/06
• CPC Class Codes: A61C 2202/01 Packaging for light-curable material
• CPC Class Codes: A61C 2204/002 using batteries
• CPC Class Codes: A61C 5/62 Applicators, e.g. syringes or guns
• CPC Class Codes: A61C 5/66 Capsules for filling material

Abstract

A lightweight, small footprint, composite extraction pen, for the delivery of dental filling composite from commercially available composite filled carpules. An electric linear actuator is housed in a slender, pen-like housing configured to accept, constrain and allow the rotational positioning of commercially available composite filled carpules. The carpules are contained within an adaptor that connects to the body of the pen. The linear actuator extends and retracts a piston through a bore in the carpule so as to exert pressure on the composite contained therein. The pen provides precise composite delivery while maintaining a highly visible dental environment.

Claims

1. A dental composite extraction pen comprising:

a housing;

a carpule tip conformed for the retention therein of a carpule of flowable, extractable material,

a tactile feed switch affixed to said housing;

a power source therein said housing;

a variable speed linear actuator assembly with an extendable ram, said linear actuator assembly therein said housing and operatively connected to said power source for the extension of said ram by actuation of said tactile switch;

a microprocessor in said housing;

a ram speed indicator circuit operatively connected to said microprocessor having a series of speed sensor LEDs, said LEDs mounted on said housing;

a ram speed and retraction switch operationally mounted on said housing;

wherein said speed and ram retraction switch directs said microprocessor to adjust an extension speed of said ram, and

wherein said microprocessor processes and sends an LED illumination signal to the ram speed indicator circuit.

2. The composite extraction pen of claim 1 further comprising a battery power indication light.

3. The composite extraction pen of claim 1 wherein said ram may be extended or retracted, said extension controlled by continued tactile manipulation of said feed switch and said ram retraction is controlled by actuation of said ram speed and retraction switch.

4. The composite extraction pen of claim 1 further comprising;

a microprocessor in said housing;

a ram speed indicator circuit operatively connected to said microprocessor having a series of speed sensor LEDs, said LEDs mounted on said housing;

a ram speed and retraction switch operationally mounted on said housing;

wherein said speed and ram retraction switch directs said microprocessor to incrementally adjust an extension speed of said ram and a direction of said ram, and wherein said microprocessor processes and sends an LED illumination signal to the ram speed indicator circuit.

5. The composite extraction pen of claim 4 further comprising a battery power indication light.

6. The composite extraction pen of claim 4 wherein said ram may be extended or retracted, said extension controlled by continued tactile manipulation of said feed switch and said ram retraction is controlled by actuation of said ram speed and retraction switch.

7. The composite extraction pen of claim 1 wherein said carpule tip is interchangeable and has a partially removed cylindrical sidewall with an internal stepped bore configuration that matingly conforms to said carpule.