Device, system and method for assessing attitude and alignment of a surgical cassette

• US 9,386,922 B2
• Filed: 03/14/2013
• Issued: 07/12/2016
• Est. Priority Date: 03/17/2012
• Status: Active Grant

• Current Assignee: Johnson & Johnson Surgical Vision, Inc. (Johnson & Johnson)
• Original Assignee: Abbott Medical Optics Incorporated (Johnson & Johnson)
• Inventors: Ross, Mark W, Gerg, James, Lynn, Kyle, Hickey, Lauren M
• Primary Examiner(s): MEDWAY, SCOTT J
• Application Number:
  US13/827,958
• Publication Number:
  US 20130267819A1
• Time in Patent Office: 1,216 Days
• US Class Current: 1/1
• CPC Class Codes: A47B 81/00 Cabinets or racks specially adapted for other particular purposes, e.g. for storing guns or skis
• CPC Class Codes: A61B 3/16 for measuring intraocular pressure, e.g. tonometers
• CPC Class Codes: A61F 9/007 Methods or devices for eye surgery
• CPC Class Codes: A61F 9/00736 Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments A61F9/008 takes precedence
• CPC Class Codes: A61F 9/00745 using mechanical vibrations, e.g. ultrasonic
• CPC Class Codes: A61F 9/008 using laser
• CPC Class Codes: A61M 1/71 Suction drainage systems containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90
• CPC Class Codes: A61M 1/72 Cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 1/73 comprising sensors or indicators for physical values
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/774 Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/121 interface between cassette and base
• CPC Class Codes: A61M 2205/123 with incorporated reservoirs
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3379 Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2210/0612 Eyes
• CPC Class Codes: A61M 3/0201 : Cassettes therefor
• CPC Class Codes: A61M 3/0202 : with electronic control means or interfaces
• CPC Class Codes: A61M 3/0216 : Pressure
• CPC Class Codes: A61M 3/022 : Volume; Flow rate
• CPC Class Codes: A61M 3/0258 : by means of electric pumps
• CPC Class Codes: Y10T 29/49826 : Assembling or joining

Abstract

A system and method of receiving a cassette to a console of a phacoemulsification system. The system and method may include receiving the cassette in close proximity to a cassette receptacle comprising a receiving surface, sensing variations in at least two variable resistances mounted respectively diagonally about the receiving surface, and comparing the variations as between the at least two variable resistances to assess an attitude of the cassette. The system and method may optionally include clamping the cassette responsively to the comparing step.

Claims

1. A cassette attitude assessment system, comprising:

a cassette receiver configured to couple with a cassette having positioning surfaces;

two detectors mounted diagonally within an area defined by said cassette receiver, each of said detectors providing a depressable rod in the area defined by the cassette receiver, wherein each of the depressable rods is configured to be depressed by one of the positioning surfaces of the cassette; and

a comparator configured to compare, based on an electrical resistance reading, an extent of the depression of one of the depressable rods with that of another of the depressable rods to assess an attitude of the cassette.

2. The cassette attitude assessment system of claim 1, wherein each of the detectors comprises a potentiometer.

3. The cassette attitude assessment system of claim 2, wherein the depressable rod is mounted to a spring loaded axial shaft for each potentiometer.

4. The cassette attitude assessment system of claim 3, wherein each of the potentiometers comprises a mounting body mounted at a face of the cassette receiver opposite the cassette.

5. The cassette attitude assessment system of claim 1, wherein said comparator is further configured to compare an extent of the depression of one of the depressable rods with another of the depressable rods to assess an alignment of the cassette.

6. The cassette attitude assessment system of claim 1, wherein said comparator is further configured to compare an extent of the depression of more than one of the depressable rods to assess a complete loading of the cassette.

7. The cassette attitude assessment system of claim 1, further comprising third and fourth detectors.

8. The cassette attitude assessment system of claim 1, further comprising a clamping mechanism for clamping the cassette into the cassette receiver based on an assessment by said comparator of a minimum threshold alignment.

9. The cassette attitude assessment system of claim 1, wherein each of the depressable rods provides a continuous resistance that varies with the extent of depression of the respective depressable rod.