WO2019076422A4 - Method and device for patient specific templates of total shoulder replacement - Google Patents

Method and device for patient specific templates of total shoulder replacement Download PDF

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Publication number
WO2019076422A4
WO2019076422A4 PCT/EG2018/000023 EG2018000023W WO2019076422A4 WO 2019076422 A4 WO2019076422 A4 WO 2019076422A4 EG 2018000023 W EG2018000023 W EG 2018000023W WO 2019076422 A4 WO2019076422 A4 WO 2019076422A4
Authority
WO
WIPO (PCT)
Prior art keywords
glenoid
humeral
bone
patient
component
Prior art date
Application number
PCT/EG2018/000023
Other languages
French (fr)
Other versions
WO2019076422A1 (en
Inventor
Mahmoud Alm El Din HAFEZ
Original Assignee
Hafez Mahmoud Alm El Din
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 Hafez Mahmoud Alm El Din filed Critical Hafez Mahmoud Alm El Din
Publication of WO2019076422A1 publication Critical patent/WO2019076422A1/en
Publication of WO2019076422A4 publication Critical patent/WO2019076422A4/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
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1778—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the shoulder
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/568—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor produced with shape and dimensions specific for an individual patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
    • A61B2034/108—Computer aided selection or customisation of medical implants or cutting guides

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Prostheses (AREA)

Abstract

This invention relates to a method of determining the optimal positioning of the glenoid and humeral component. The method is a preplanned surgery on a specific software design an electronic model of patient specific instruments perform the correct and accurate position of the glenoid and humeral component for the patient going to total shoulder replacement surgery. This method identifies in a clear manner the center of the glenoid component; that gives the surgeons an easy way to orientate the glenoid component in the correct location over the densest area of bone and relative to a medial point of the patient's scapula and aligned with the coracoid bone level. Another goal of this method is to identify the retroversion and the location and slope of cutting level over the humeral head with a specific angle according to the diagnosis of the case based on the CT-Scan. The 3D printing technologies will carry out producing of these patient specific templates.

Claims

14 AMENDED CLAIMS received by the International Bureau on 18 April 2019 (18.04.2019)
1. A patient specific device used in total shoulder arthroplasty surgeries based on the CT scan data of the patient and the anatomical structure of the shoulder joint based on software pre-operative planning; wherein the device is characterized by a glenoid part and a humeral part; wherein the humeral part is used for cutting the humeral bone and the glenoid part is used for making openings on the glenoid cavity.
2. The device mentioned in claim (1), whereas the humeral part (6, 12) is
characterized by cutting plane surface (3, 11) which is used for cutting humeral bone.
3. The device mentioned in claim (1), whereas the humeral part (6, 12) is
characterized by the seating surface (8, 13) which is matched with surface of the bone and is used to seat the device on the bone.
4. The device mentioned in claim (1), whereas the humeral part (6, 12) is
characterized by a fixing hook (4) which is seated onto the bicipital groove (1) to prevent the device displacement.
5. The device mentioned in claim (1), whereas the glenoid component (18, 24, 27, 31) is characterized by openings (15, 20) which are used for making paths for inserting the glenoid component.
6. The device mentioned in claim (1), whereas the glenoid component (18, 24, 27, 31) is characterized by seating surface (17, 23, 26, 30) which is matched with the surface of the bone and is used to seat the device on the bone.
7. The device mentioned in claim (1), whereas the glenoid component (18, 24, 27, 31) is characterized by the ability to be seated on the coracoid process via the wing (29).
8. (deleted)
9. (deleted)
10. (deleted)
11. (deleted)
PCT/EG2018/000023 2017-10-22 2018-10-22 Method and device for patient specific templates of total shoulder replacement WO2019076422A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EG2017100026 2017-10-22
EG2017100026 2017-10-22
EG2018040667 2018-04-22
EG2018040667 2018-04-22

Publications (2)

Publication Number Publication Date
WO2019076422A1 WO2019076422A1 (en) 2019-04-25
WO2019076422A4 true WO2019076422A4 (en) 2019-05-23

Family

ID=64277475

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EG2018/000023 WO2019076422A1 (en) 2017-10-22 2018-10-22 Method and device for patient specific templates of total shoulder replacement

Country Status (1)

Country Link
WO (1) WO2019076422A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9579106B2 (en) * 2010-03-31 2017-02-28 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Shoulder arthroplasty instrumentation
WO2012021241A2 (en) * 2010-08-12 2012-02-16 Smith & Nephew, Inc. Methods and devices for installing standard and reverse shoulder implants
US9408616B2 (en) * 2014-05-12 2016-08-09 Biomet Manufacturing, Llc Humeral cut guide
US10568647B2 (en) * 2015-06-25 2020-02-25 Biomet Manufacturing, Llc Patient-specific humeral guide designs

Also Published As

Publication number Publication date
WO2019076422A1 (en) 2019-04-25

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