Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
  • A61F9/007—Methods or devices for eye surgery
  • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
  • A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
• • G—PHYSICS
  • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
  • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
  • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
  • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
  • G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
  • A61B2017/00017—Electrical control of surgical instruments
  • A61B2017/00199—Electrical control of surgical instruments with a console, e.g. a control panel with a display
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
  • A61B2017/00017—Electrical control of surgical instruments
  • A61B2017/00225—Systems for controlling multiple different instruments, e.g. microsurgical systems

Definitions

• the invention relates to methods and devices for removing a lens from an eye and, more particularly, phacoemulsification systems.
• a number of medically recognized techniques have been utilized for removing a lens from an eye.
• One such technique is phacoemulsification, which includes making a corneal incision in the eye and then inserting a needle of a handpiece into the eye, with the needle being ultrasonically driven or vibrated in order to emulsify the eye lens.
• phacoemulsification includes making a corneal incision in the eye and then inserting a needle of a handpiece into the eye, with the needle being ultrasonically driven or vibrated in order to emulsify the eye lens.
• a fluid is utilized for irrigating the eye, and a vacuum is provided for aspirating the emulsified lens and inserted fluids.
• Pulses or signals from a control unit controls the vibration of the needle.
• the pulses are controlled by one or more parameters, such as frequency, size, shape, and so on. It is inconvenient during a phacoemulsification procedure to change the parameters of the pulses being delivered to the needle in real time without the surgeon being distracted during the change.
• a phacoemulsification system with enhanced user utility and tactile operability includes a control unit and a handpiece with a needle and a vibrating unit that is configured to ultrasonically vibrate the needle.
• the handpiece includes a needle and a vibrating unit for ultrasonically vibrating the needle according to at least one variable parameter, such as frequency, shape, size, duty cycle, amplitude, and so on.
• the control unit is configured to adjust the value of the parameter that is varied. In a number of embodiments, multiple parameters may be adjusted.
• the system also includes a monitor operably connected to the control unit for displaying a graphical user interface (GUI).
• GUI graphical user interface
• the GUI includes an adjustable control element, such as a slider bar, radio buttons, or handles, and an indication element that indicates the PATENT Docket No. 27586
• An interface device such as a touchscreen, a mouse, or a keyboard, is operably connected to the control unit for enabling a user to adjust the control element.
• the control unit is configured to change the value of the parameter at least in response to adjustments of the control element by the user.
• One of the advantages of the invention is that during a phacoemulsification procedure, a surgeon or surgical assistant can view the GUI on the monitor to easily see parameters of the pulse currently being provided to the handpiece. In addition, the surgeon or surgical assistant can easily and tactilely adjust the value of one or more parameters on the same GUI. This greatly increases the utility of the system during a highly refined and sensitive procedure. As mentioned above, in many cases, the values of multiple parameters can be adjusted.
• FIG. 1 is a block diagram of a phacoemulsification system
• FIG. 2 schematically illustrates a handpiece of the system in relation to an eye
• FIG. 3 illustrates a commercial embodiment of the invention
• FIG. 4 is a block diagram of a computer and a monitor of the system
• FIG. 5 illustrates a graphical user interface (GUI) according to a number of embodiments
• FIG. 6 illustrates a touchscreen interface device
• FIG. 7 illustrates a mouse interface device
• FIG. 8. illustrates a keyboard interface device
• FIG. 9 illustrates a GUI according to other embodiments.
• FIG. 10 illustrates a GUI according to still other embodiments
• FIG. 11 illustrates a GUI according to further embodiments
• FIG. 12 illustrates a footswitch interface device
• FIG. 13 illustrates a remote-control interface device.
• the system 100 may include a control unit 102 and a handpiece 104 operably coupled together.
• the handpiece 104 may include a needle 106 for insertion into an eye E and a vibrating unit 108 that is configured to ultrasonically vibrating needle 106.
• the vibrating unit 108 which may include, e.g., a piezoelectric crystal, vibrates the needle 106 according to one or more parameters, such as frequency, pulse width, shape, size, duty cycle, amplitude, and so on, which is discussed in more detail below.
• the system 100 is described in general immediately hereunder, with a detailed description of the enhanced user utility and operability of the system following.
• the functional block diagram of the phacoemulsification system 100 includes a microprocessor computer 110 which is operably connected to and controls the various other elements of the system.
• the system 100 may include a variable speed pump 112 for providing a vacuum source and a pulsed ultrasonic power source 114 for providing control outputs to a pump speed controller 116 and an ultrasonic power level controller 118.
• a vacuum sensor 120 provides an input to the computer 110 representing the vacuum level on the output side of the pump 112. Venting may be provided by a vent 122.
• the system 100 may also include a phase detector 124 for providing an input to the computer 100 that represents a phase shift between a sine wave representation of the voltage applied to the handpiece 104 and the resultant current into the handpiece 104.
• the functional representation of the system 100 also includes a system bus 126 for enable the various elements to be operably coupled with each other.
• the control unit 102 supplies ultrasonic power on to the phacoemulsification handpiece 104.
• An irrigation fluid source 128 provides irrigation fluid to the handpiece 104.
• the irrigation fluid and an ultrasonic pulse are applied by the handpiece 104 to a patient's eye E, which are indicated by arrows F and P.
• Aspiration of the eye E is achieved by means of the pump 112, which is indicated by arrow A.
• the handpiece 104 may include a switch 130 for enabling a surgeon to select an amplitude of electrical PATENT Docket No. 27586
• the control unit 102 may include a video display or monitor 132 as shown in FIGS. 3 and 4.
• the monitor 132 is operably connected to the computer 110 and is configured to display a graphical user interface (GUI) 134.
• GUI graphical user interface
• An example of a GUI 134 is shown in FIG. 4.
• the GUI 134 may include one or more adjustable control elements 136 and one or more indication elements 138.
• the indication elements 138 either graphically or numerically indicate the value of the operating parameters of the handpiece 104 or the irrigation fluid. For example, as shown in FIG. 5, indication element 138a indicates a duty cycle of the pulse, and indication element 138b indicates the pulse rate of the pulse.
• the system 100 may also include an interface device 140 operably connected to the control unit 102 (as shown in FIG. 1) or the computer 110.
• the interface device 140 is configured to enable a user to adjust the control element 136 and, therefore, to change the value of the parameter or parameters of the handpiece 104.
• the control unit 102 is configured to change the value of the parameter at least in response to adjustments of the control element 136 by the user.
• the interface device 140 may include a touchscreen 142 as shown in FIG. 6 integrated with the monitor 132 for tactile or manual adjustment of the control elements 136, a mouse 144 as shown in FIG. 7 for curser adjustment of the control elements 136, or a keypad or keyboard 146 as shown in FIG. 8 for keystroke adjustment of the control elements 136.
• the computer 110 may include an interface controller 148 and an interface driver 150 for controlling the interface device 140.
• the GUI 134 may display a pointer 151 operatively associated with the mouse 144.
• the computer 110 may be configured to change the values of the parameters in real time in response to any change made with the control elements 136, with the indication elements 138 also indicating the new values in real time. This enables the user to quickly control and modify the pulses P at the handpiece 104 in response to desired changes during a phacoemulsification procedure.
• each of the control elements 136 of the GUI 134 may include a slider bar 152 juxtaposed on a scale 154.
• One of the slider bars 152 may include a common tab 156 which when actuated moves both of the slider bars 152 simultaneously.
• each of the control elements 136 may include a set of radio buttons 158 which may be actuated by means of the interface device 140 to increase and decrease the value of a respective parameter.
• vertical or circular representations may be used.
• each of the control elements 136 may include a handle 160 juxtaposed over a graph 162 that, for example, represents the shape of the pulse P in terms of percentage power versus percentage of pulse ON time.
• a user may manipulate the position of the handles 160 with the interface device 140 to change the shape of the pulse P in real time.
• the monitor 132 may also display a GUI 134 that can be utilized for changing the height of a bottle of irrigation fluid 128 mounted on an IV pole or for changing the pressure by which irrigation fluid is infused into the eye.
• the control element 136 may include a slider bar 152 juxtaposed on a scale 154.
• the GUI 134 may also include an icon 164 of the bottle of fluid 128 that is configured to move correspondingly with the slider bar 152 so that the scale 154 graphically represents the current height of the bottle.
• An indication element 138 may also numerically indicate the height as well.
• the needle 106 may be operatively inserted into an eye E.
• the user may then cause the control unit to provide the pulse P to the handpiece 104, thereby causing the needle 106 to vibrate.
• One or more of the control element 136 may then be manipulated to manually change the value of respective parameters of the pulse P.
• the control element 136 may be moved or actuated by a user pressing a finger against the surface of the monitor 132 over the graphical representation of PATENT Docket No. 27586
• control element 136 may be moved by placing the pointer 151 on the graphical representation of the control element 136, and then moving the element as desired.
• designated keys may be associated with a parameter value so that by manipulating the keys, the value of the parameter changes.
• the interface device 140 may also a footswitch 164 as shown in FIG. 12 that is operably connected to the control unit 102.
• a surgeon or surgical assistant can operate the footswitch 164 to provide inputs to the control unit 102 to, e.g., adjust the values of the parameters or change the irrigation fluid flow, as desired.
• the interface device 140 may also include a remote control 166 as shown in FIG. 13 that may either directly or wirelessly communicate with the control unit 102.
• the remote control 166 may include a plurality of buttons 168 that correspond to the control elements 136 of the GUI 134 for surgical control of the parameters.

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• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• General Health & Medical Sciences (AREA)
• Ophthalmology & Optometry (AREA)
• Public Health (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Heart & Thoracic Surgery (AREA)
• Primary Health Care (AREA)
• Epidemiology (AREA)
• General Business, Economics & Management (AREA)
• Business, Economics & Management (AREA)
• Surgery (AREA)
• Medical Informatics (AREA)
• Vascular Medicine (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Veterinary Medicine (AREA)
• Surgical Instruments (AREA)
• Apparatuses For Generation Of Mechanical Vibrations (AREA)

Applications Claiming Priority (1)

Publications (1)

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Family Applications (1)

Country Status (6)

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• 2005
  • 2005-01-05 JP JP2007550345A patent/JP2008526357A/ja active Pending
  • 2005-01-05 AU AU2005323538A patent/AU2005323538A1/en not_active Abandoned
  • 2005-01-05 BR BRPI0519607-8A patent/BRPI0519607A2/pt not_active IP Right Cessation
  • 2005-01-05 EP EP05705100A patent/EP1833438A1/de not_active Withdrawn
  • 2005-01-05 CA CA002593227A patent/CA2593227A1/en not_active Abandoned
  • 2005-01-05 WO PCT/US2005/000310 patent/WO2006073400A1/en active Application Filing

Non-Patent Citations (1)

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