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WO2014063197A1 - Instrument chirurgical - Google Patents

Instrument chirurgical Download PDF

Info

Publication number
WO2014063197A1
WO2014063197A1 PCT/AU2013/001233 AU2013001233W WO2014063197A1 WO 2014063197 A1 WO2014063197 A1 WO 2014063197A1 AU 2013001233 W AU2013001233 W AU 2013001233W WO 2014063197 A1 WO2014063197 A1 WO 2014063197A1
Authority
WO
WIPO (PCT)
Prior art keywords
acetabular cup
surgical instrument
head portion
instrument
accordance
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.)
Ceased
Application number
PCT/AU2013/001233
Other languages
English (en)
Inventor
Robert Lye
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.)
Inertial Orthopaedic Navigation Solutions Pty Ltd
Original Assignee
Inertial Orthopaedic Navigation Solutions Pty Ltd
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
Priority claimed from AU2012904646A external-priority patent/AU2012904646A0/en
Application filed by Inertial Orthopaedic Navigation Solutions Pty Ltd filed Critical Inertial Orthopaedic Navigation Solutions Pty Ltd
Publication of WO2014063197A1 publication Critical patent/WO2014063197A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4609—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1664—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip
    • A61B17/1666—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the acetabulum
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/0046—Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction

Definitions

  • the present invention relates to a surgical instrument.
  • Embodiments of the invention relate generally, but not exclusively, to a surgical instrument arranged to assist in the removal of an acetabular cup from the hip of a patient during hip replacement surgery.
  • Hip replacement surgery is a common surgical procedure. It is estimated that in 201 1 approximately 285 000 hip replacement procedures were performed in the US alone. However, while hip replacement surgical techniques are well known and understood, hip replacement continues to be a very invasive procedure which requires extensive incisions that potentially expose a patient to infection.
  • hip replacement incision techniques There are several hip replacement incision techniques that have been developed over time. The choice of incision technique is largely dictated by the personal preference of a surgeon. Each technique has advantages and disadvantages. As a general rule, techniques that require a larger incision interval (opening) provide better access to the hip and hip socket, but also increase the risk of infection and potentially lengthen healing time. Techniques that require a smaller incision interval (opening) provide poorer access to the hip and hip socket, but potentially decrease the risk of infection and shorten healing time.
  • acetabular cup is a component which is placed into the acetabulum (hip socket).
  • acetabular cup removal instrument is used to operate such an instrument correctly and easily, a large incision is generally required.
  • the invention provides a surgical instrument for assisting in the removal of an acetabular cup implanted in a patient, comprising:
  • a body including a head portion arranged to locate at least partially within an acetabular cup, at least one cutting device arranged to cut around the acetabular cup; wherein the cutting device is arranged to substantially cut around the entire outside of the acetabular cup without requiring the body to move through a corresponding path.
  • the present invention provides a surgical instrument comprising:
  • a body including a head portion in connection with a handle portion via a connecting portion;
  • the connecting portion includes an offset portion having at least one bend such that the head portion and the handle portion define a substantially straight line.
  • the head portion is arranged to locate at least partially within an acetabular cup implanted in a patient.
  • the head portion further includes a cutting device arranged to substantially cut around an outer portion of the acetabular cup.
  • the head portion is detachable from the surgical instrument.
  • the head portion is of a substantially spherical shape.
  • the cutting device is a blade.
  • the blade is detachable from the instrument.
  • Figure 1 illustrates a perspective view of an embodiment of a surgical instrument in accordance with the invention
  • Figure 2 illustrates the embodiment in Figure 1 in top view
  • Figure 3 illustrates the embodiment in Figure 1 in a side view
  • Figure 4 illustrates a perspective view of the head portion of the embodiment in Figure 1 ;
  • Figure 5 illustrates a cut away diagram illustrating use of the embodiment in
  • FIG. 6A illustrates another embodiment of a surgical instrument in accordance with invention
  • Figure 6B illustrates a perspective view of the embodiment of Figure 6A
  • Figure 6C illustrates a side view of the embodiment of Figure 6A
  • Figure 6D illustrates a perspective view of the head portion of the embodiment of Figure 6A
  • Figure 7 A illustrates a top view of yet another embodiment of a surgical instrument in accordance with the invention
  • Figure 7B illustrates a perspective view of the embodiment in Figure 7A
  • Figure 7C illustrates a side view of the embodiment in Figure 7A
  • Figure 7D illustrates a perspective view of the head portion of the embodiment in Figure 7A
  • Figure 8A illustrates yet another embodiment of a surgical instrument in accordance with the invention
  • Figure 8B illustrates a perspective view of the embodiment in Figure 8A.
  • Figure 8C illustrates a side view of the embodiment in Figure 8A.
  • FIG. 1 An embodiment of a surgical instrument 10 in accordance with the invention is illustrated in Figures 1 to 8A inclusive.
  • the surgical instrument 10 is arranged to be used in the removal of an acetabular cup from the hip of a patient during hip replacement surgery.
  • the surgical instrument in one embodiment, comprises a body including a head portion arranged to locate at least partially within an acetabular cup and at least one cutting device arranged to cut around the periphery of the acetabular cup.
  • the cutting device is arranged to substantially cut around the outer periphery of the acetabular cup without requiring the body of the instrument to move through a corresponding path.
  • the surgical instrument 10 includes a head portion 12, which is described in more detail below.
  • the head portion 1 2 is connected to a handle portion 14 via a connecting portion 1 6.
  • the connecting portion 16 comprises an offset portion generally denoted by numeral 18.
  • the offset portion in the embodiments shown in Figures 1 to 7D, includes two bends generally denoted by numerals 20 and 22, such that the head portion 12 and the handle portion 14 define a substantially straight line, and the bend generally denoted by numeral 20 is approximately 45 degrees relative to the straight line defined by the head portion 12 and the handle portion 14.
  • the head portion 12 includes at least one blade 24 which is removably attached to the head portion 1 2 by an attachment portion which comprises corresponding male and female parts that slide into engagement and are securely held by a fixing device (not shown).
  • a fixing device not shown
  • there are provided three equally spaced attachment portions denoted by 26 and 28, third attachment portion not shown
  • three blades denoted by 24, other two blades not attached in Figures 1 to 4
  • the exact length, shape and cutting surface of the blades may be varied, as required for different size acetabular cups.
  • the head portion 1 2 further includes a locating ball attachment portion 30 arranged to removably receive a locating ball 32 (locating ball not shown in Figures 1 to 4 or 6A through to 8C), such that the locating ball 32 is securely but removably attached to the surgical instrument 10.
  • a locating ball 32 locating ball not shown in Figures 1 to 4 or 6A through to 8C
  • different size locating balls may be provided depending on the acetabular cup implanted in a patient. The surgeon or other user may remove the locating ball and attach a different size locating ball, as required for each surgical procedure and each patient.
  • the surgical instrument 10 is arranged to assist in the removal of an acetabular cup from a patient during a hip replacement procedure.
  • the general manner in which the acetabular cup removal instrument is used will now be described, to assist a person skilled in the art to better understand the structural and functional aspects of the surgical instrument 10.
  • this general description of one technique for using the acetabular cup removal instrument is provided for illustrative purposes and should not be construed as limiting on the embodiment or the broader inventive concepts described and claimed herein.
  • the acetabular cup removal instrument 10 is arranged to be inserted into an open incision 50 in a patient 52.
  • the shaded area in Figure 5 denotes the hip area of a patient.
  • the locating ball 32 is arranged to guide and correctly locate the instrument into the previously implanted acetabular cup 54, to provide a guide for the blade(s) 24.
  • prior art acetabular cup removal instruments which do not have an offset connecting portion, cannot be used with oblique anterior incisions.
  • the offset connecting portion in accordance with the disclosed embodiment allows the locating ball 32 to correctly align with the acetabular cup, while simultaneously allowing the surgeon to 'turn' the handle of the instrument in a conventional manner (i.e. in a manner akin to the prior art instrument) to effect a cut around the outer periphery of the acetabular cup.
  • the surgeon can use the blade(s) 24 to cut a channel around the outer periphery of the acetabular cup to thereby cut the acetabular cup away from surrounding hip bone and tissue. This cutting in turn detaches the acetabular cup from the patient and allows removal of the acetabular cup from the patient.
  • the relative angle of the surgical instrument relative to the acetabular cup and the oblique angle of the incision restricts the free rotation of the device.
  • the device may only be rotated through an angle of approximately 120 degrees before the connecting portion interferes with the incision.
  • the surgical instrument 10 is provided, in one embodiment (as shown in Figures 1 to 4), with three equidistantly spaced blades such that the head portion 1 2, when placed in an oblique cut in a patient's hip, can be turned through the angle of approximately 120 degrees but perform a cut that runs along the entire outer circumference of the acetabular cup, to effect removal of the acetabular cup with only one rotation of approximately 120 degrees.
  • the head can effect a circular cutting motion of approximately 360 degrees (a full circle) while the body and handle of the instrument is only rotated through 120 degrees. That is, there is no need for the body to follow a corresponding path with the blade.
  • FIG. 6A to 6D and Figures 7A to 7D show a surgical instrument 10 which includes a single blade 24.
  • Figures 8A through 8C show an instrument 10 which includes two blades 24. It will be understood that such variations are within the purview of a person skilled in the art.
  • FIG. 8A through 8C there is further shown a second embodiment of the invention which has a differently shaped handle portion.
  • the device of Figures 8A through to 8C includes a curved handle portion 16 and includes dual handles 60 which allow the user to exert greater force and control by providing two handles that are substantially perpendicular to each other, such that one handle may be used to locate, orient and stabilise the cutting device on the instrument, while the other handle may be used to apply substantive pressure by the user to more effectively rotate the instrument.
  • an oblique cut in keeping with an anterior surgical technique
  • an anterior surgical technique can be used to remove an acetabular cup.

Landscapes

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

Abstract

Selon un aspect, l'invention concerne un instrument chirurgical pour aider à retirer un cotyle implanté dans un patient. L'instrument comprend un corps ayant une partie tête conçue pour être placée au moins partiellement dans un cotyle. L'instrument comprend également au moins un dispositif de coupe conçu pour couper autour du cotyle, le dispositif de coupe étant conçu pour couper sensiblement autour de la périphérie externe du cotyle sans devoir déplacer le corps à travers un chemin correspondant.
PCT/AU2013/001233 2012-10-25 2013-10-25 Instrument chirurgical Ceased WO2014063197A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2012904646 2012-10-25
AU2012904646A AU2012904646A0 (en) 2012-10-25 A Surgical Instrument

Publications (1)

Publication Number Publication Date
WO2014063197A1 true WO2014063197A1 (fr) 2014-05-01

Family

ID=50543780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2013/001233 Ceased WO2014063197A1 (fr) 2012-10-25 2013-10-25 Instrument chirurgical

Country Status (1)

Country Link
WO (1) WO2014063197A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150374502A1 (en) * 2014-06-30 2015-12-31 Tornier, Inc. Augmented glenoid components and devices for implanting the same
EP3431046A1 (fr) * 2017-07-20 2019-01-23 Shukla Medical Extracteur de cotyle
US10314596B2 (en) 2010-11-08 2019-06-11 Tornier Sas Orthopedic reamer for bone preparation, particularly glenoid preparation
US10905564B2 (en) 2016-04-12 2021-02-02 Shukla Medical Acetabular cup extractor
US11129724B2 (en) 2016-07-28 2021-09-28 Howmedica Osteonics Corp. Stemless prosthesis anchor component
US11234826B2 (en) 2014-06-30 2022-02-01 Howmedica Osteonics Corp. Augmented glenoid components and devices for implanting the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020116007A1 (en) * 2001-02-16 2002-08-22 Lewis Randall J. Method and apparatus for removing an acetabular cup
WO2003065906A2 (fr) * 2002-02-08 2003-08-14 Gursharan Singh Chana Dispositifs chirurgicaux ameliores et procedes d'utilisation correspondants
US20060200165A1 (en) * 2005-03-01 2006-09-07 Howmedia Osteonics Corp. Acetabular shell removal instrument
US20080195111A1 (en) * 2007-02-12 2008-08-14 James Anderson Apparatus and Method for Hip Cup Extraction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020116007A1 (en) * 2001-02-16 2002-08-22 Lewis Randall J. Method and apparatus for removing an acetabular cup
WO2003065906A2 (fr) * 2002-02-08 2003-08-14 Gursharan Singh Chana Dispositifs chirurgicaux ameliores et procedes d'utilisation correspondants
US20060200165A1 (en) * 2005-03-01 2006-09-07 Howmedia Osteonics Corp. Acetabular shell removal instrument
US20080195111A1 (en) * 2007-02-12 2008-08-14 James Anderson Apparatus and Method for Hip Cup Extraction

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12193685B2 (en) 2010-11-08 2025-01-14 Tornier Sas Orthopedic reamer for bone preparation, particularly glenoid preparation
US10314596B2 (en) 2010-11-08 2019-06-11 Tornier Sas Orthopedic reamer for bone preparation, particularly glenoid preparation
US11207078B2 (en) 2010-11-08 2021-12-28 Tornier Sas Orthopedic reamer for bone preparation, particularly glenoid preparation
US11806023B2 (en) 2010-11-08 2023-11-07 Tornier Sas Orthopedic reamer for bone preparation, particularly glenoid preparation
US10028838B2 (en) 2014-06-30 2018-07-24 Tornier, Inc. Augmented glenoid components and devices for implanting the same
US12186197B2 (en) 2014-06-30 2025-01-07 Howmedica Osteonics Corp. Augmented glenoid components and devices for implanting the same
US20150374502A1 (en) * 2014-06-30 2015-12-31 Tornier, Inc. Augmented glenoid components and devices for implanting the same
US11234826B2 (en) 2014-06-30 2022-02-01 Howmedica Osteonics Corp. Augmented glenoid components and devices for implanting the same
US11786378B2 (en) 2016-04-12 2023-10-17 Shukla Medical Acetabular cup extractor
US10905564B2 (en) 2016-04-12 2021-02-02 Shukla Medical Acetabular cup extractor
US11129724B2 (en) 2016-07-28 2021-09-28 Howmedica Osteonics Corp. Stemless prosthesis anchor component
US11504250B2 (en) 2017-07-20 2022-11-22 Shukla Medical Acetabular cup extractor
US10772739B2 (en) 2017-07-20 2020-09-15 Shukla Medical Acetabular cup extractor
EP3431046A1 (fr) * 2017-07-20 2019-01-23 Shukla Medical Extracteur de cotyle

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