WO2004086938A3 - Drill device and method for forming microconduits - Google Patents

Drill device and method for forming microconduits Download PDF

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Publication number
WO2004086938A3
WO2004086938A3 PCT/US2004/008617 US2004008617W WO2004086938A3 WO 2004086938 A3 WO2004086938 A3 WO 2004086938A3 US 2004008617 W US2004008617 W US 2004008617W WO 2004086938 A3 WO2004086938 A3 WO 2004086938A3
Authority
WO
WIPO (PCT)
Prior art keywords
drilling
impedance
microconduits
forming
drilling assembly
Prior art date
Application number
PCT/US2004/008617
Other languages
French (fr)
Other versions
WO2004086938A2 (en
WO2004086938B1 (en
Inventor
Terry O Herndon
Original Assignee
Terry O Herndon
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terry O Herndon filed Critical Terry O Herndon
Priority to EP04758169.9A priority Critical patent/EP1613211B1/en
Priority to MXPA05010221A priority patent/MXPA05010221A/en
Priority to CA 2520123 priority patent/CA2520123C/en
Publication of WO2004086938A2 publication Critical patent/WO2004086938A2/en
Publication of WO2004086938A3 publication Critical patent/WO2004086938A3/en
Priority to US11/206,232 priority patent/US7848799B2/en
Publication of WO2004086938B1 publication Critical patent/WO2004086938B1/en
Priority to US12/915,251 priority patent/US20110040237A1/en
Priority to US12/915,322 priority patent/US8636748B2/en
Priority to US12/915,289 priority patent/US8241229B2/en
Priority to US14/096,075 priority patent/US9022949B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1695—Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/20—Surgical instruments, devices or methods, e.g. tourniquets for vaccinating or cleaning the skin previous to the vaccination
    • A61B17/205—Vaccinating by means of needles or other puncturing devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/20—Applying electric currents by contact electrodes continuous direct currents
    • A61N1/30—Apparatus for iontophoresis, i.e. transfer of media in ionic state by an electromotoric force into the body, or cataphoresis
    • 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
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00026—Conductivity or impedance, e.g. of tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00743—Type of operation; Specification of treatment sites
    • A61B2017/00747—Dermatology
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M37/0076—Tattooing apparatus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/327—Applying electric currents by contact electrodes alternating or intermittent currents for enhancing the absorption properties of tissue, e.g. by electroporation

Abstract

The present invention relates to methods and devices for formation of microconduits in tissue, particularly using an impedance sensing drill (10) to form microconduits. One embodiment of the invention is an impedance sensing drill comprising a drilling assembly (15), a control module (20), mechanically connected to the drilling assembly (15) for controlling the depth of drilling by the drilling assembly (15); and a sensor (25), electrically connected to the drilling assembly (15) and control module (20) for detecting a change in an electrical impedance of a material being drilled. Another embodiment is a method of forming a microconduit in a material, which comprises the steps of drilling into the material, monitoring an electrical impedance of the material, and stopping the drilling into the material when a change in the impedance is detected, thereby forming microconduit.
PCT/US2004/008617 2003-03-25 2004-03-22 Drill device and method for forming microconduits WO2004086938A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP04758169.9A EP1613211B1 (en) 2003-03-25 2004-03-22 Drill device for forming microconduits
MXPA05010221A MXPA05010221A (en) 2003-03-25 2004-03-22 Drill device and method for forming microconduits.
CA 2520123 CA2520123C (en) 2003-03-25 2004-03-22 Drill device and method for forming microconduits
US11/206,232 US7848799B2 (en) 2003-03-25 2005-08-17 Drill device and method for forming microconduits
US12/915,251 US20110040237A1 (en) 2003-03-25 2010-10-29 Drill device and method for forming microconduits
US12/915,322 US8636748B2 (en) 2003-03-25 2010-10-29 Drill device and method for forming microconduits
US12/915,289 US8241229B2 (en) 2003-03-25 2010-10-29 Drill device and method for forming microconduits
US14/096,075 US9022949B2 (en) 2003-03-25 2013-12-04 Drill device and method for forming microconduits

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45720803P 2003-03-25 2003-03-25
US60/457,208 2003-03-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/206,232 Continuation US7848799B2 (en) 2003-03-25 2005-08-17 Drill device and method for forming microconduits

Publications (3)

Publication Number Publication Date
WO2004086938A2 WO2004086938A2 (en) 2004-10-14
WO2004086938A3 true WO2004086938A3 (en) 2005-08-04
WO2004086938B1 WO2004086938B1 (en) 2005-09-15

Family

ID=33131667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/008617 WO2004086938A2 (en) 2003-03-25 2004-03-22 Drill device and method for forming microconduits

Country Status (5)

Country Link
US (5) US7848799B2 (en)
EP (1) EP1613211B1 (en)
CA (1) CA2520123C (en)
MX (1) MXPA05010221A (en)
WO (1) WO2004086938A2 (en)

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Also Published As

Publication number Publication date
MXPA05010221A (en) 2006-02-22
US9022949B2 (en) 2015-05-05
US20060041241A1 (en) 2006-02-23
US8241229B2 (en) 2012-08-14
US7848799B2 (en) 2010-12-07
CA2520123C (en) 2010-12-21
US20110046507A1 (en) 2011-02-24
EP1613211A2 (en) 2006-01-11
WO2004086938A2 (en) 2004-10-14
CA2520123A1 (en) 2004-10-14
US20110040237A1 (en) 2011-02-17
US8636748B2 (en) 2014-01-28
EP1613211A4 (en) 2011-12-07
EP1613211B1 (en) 2018-05-09
US20140094808A1 (en) 2014-04-03
US20110046626A1 (en) 2011-02-24
WO2004086938B1 (en) 2005-09-15

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