UST102001I4 - Device for extraction of cataracts using miniaturized progressing cavity pump - Google Patents

Device for extraction of cataracts using miniaturized progressing cavity pump Download PDF

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Publication number
UST102001I4
UST102001I4 US06/270,657 US27065781A UST102001I4 US T102001 I4 UST102001 I4 US T102001I4 US 27065781 A US27065781 A US 27065781A US T102001 I4 UST102001 I4 US T102001I4
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US
United States
Prior art keywords
tube
extension
frusto
conical member
tissue
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
US06/270,657
Inventor
Elmer J. Ballintine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Department of Health and Human Services
Original Assignee
US Department of Health and Human Services
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 US Department of Health and Human Services filed Critical US Department of Health and Human Services
Priority to US06/270,657 priority Critical patent/UST102001I4/en
Assigned to UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE DEPARTMENT OF HEALTH AND HUMAN SERVICES, THE reassignment UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE DEPARTMENT OF HEALTH AND HUMAN SERVICES, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BALLINTINE, ELMER J.
Application granted granted Critical
Publication of UST102001I4 publication Critical patent/UST102001I4/en
Pending legal-status Critical Current

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    • 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

Abstract

A surgical tissue macerating and removal instrument or tool having a rotating, longitudinally progressing rotor member in a miniaturized Moyno pump cavity, disposed within a hypodermic tube, which itself is coaxially disposed in an extension of a tool handle. A frusto-conical member extends into the tool handle extension and is provided with a cut-off tissue engaging edge at the end distant from the tube. The pump rotor is provided at the end distant from the tube with a cutting edge or other means suitable for drilling into the cataractous lens of an eye. Apertures are provided in the extension adjacent the frusto-conical member so that a treatment fluid may be supplied in the annular space between the tube and the extension and thus may flow to the aperture site. An aperture is provided in the frusto-conical member between the extension and the tube so that the treatment fluid may also enter into the tube where it mixes with macerated tissue being directed through an aperture in the tube to a passageway which may have suction applied thereto to help remove macerated material from the operative site. Radially-inwardly extending fins may be provided on the interior surface of the frusto-conical member to inhibit or prevent rotation of the cataractous lens tissue being macerated.
US06/270,657 1981-06-04 1981-06-04 Device for extraction of cataracts using miniaturized progressing cavity pump Pending UST102001I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/270,657 UST102001I4 (en) 1981-06-04 1981-06-04 Device for extraction of cataracts using miniaturized progressing cavity pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/270,657 UST102001I4 (en) 1981-06-04 1981-06-04 Device for extraction of cataracts using miniaturized progressing cavity pump

Publications (1)

Publication Number Publication Date
UST102001I4 true UST102001I4 (en) 1982-07-06

Family

ID=23032242

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/270,657 Pending UST102001I4 (en) 1981-06-04 1981-06-04 Device for extraction of cataracts using miniaturized progressing cavity pump

Country Status (1)

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US (1) UST102001I4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5827292A (en) * 1990-07-17 1998-10-27 Anis; Aziz Yehia Removal of tissue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5827292A (en) * 1990-07-17 1998-10-27 Anis; Aziz Yehia Removal of tissue

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