WO2019039786A1 - Appareil de retrait de cupule acétabulaire pour articulation de hanche artificielle - Google Patents

Appareil de retrait de cupule acétabulaire pour articulation de hanche artificielle Download PDF

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Publication number
WO2019039786A1
WO2019039786A1 PCT/KR2018/009308 KR2018009308W WO2019039786A1 WO 2019039786 A1 WO2019039786 A1 WO 2019039786A1 KR 2018009308 W KR2018009308 W KR 2018009308W WO 2019039786 A1 WO2019039786 A1 WO 2019039786A1
Authority
WO
WIPO (PCT)
Prior art keywords
main shaft
cutter
acetabular cup
tilting
hip joint
Prior art date
Application number
PCT/KR2018/009308
Other languages
English (en)
Korean (ko)
Inventor
주돈수
Original Assignee
아이메디컴(주)
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 아이메디컴(주) filed Critical 아이메디컴(주)
Priority to CN201880054979.7A priority Critical patent/CN111050704B/zh
Priority to US16/634,117 priority patent/US11484417B2/en
Priority to JP2020503825A priority patent/JP6935959B2/ja
Priority claimed from KR1020180094672A external-priority patent/KR102103774B1/ko
Publication of WO2019039786A1 publication Critical patent/WO2019039786A1/fr

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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
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • 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 or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor

Definitions

  • the present invention relates to a acetabular cup removing apparatus for a hip joint.
  • the artificial hip joint is a substitute for replacing the hip joint in case of disability, which can be implanted in the hip joint and maintain normal activity.
  • Such an artificial hip joint includes a hemispherical acetabular cup with a liner inserted in the acetabular portion of the pelvis and serving as a bearing, a stem fitted to the femur, and a stem And a femoral head inserted into the acetabular cup.
  • a patient suffering from arthritis, dysplasia, trauma, or infectious complaints and suffering from pain in the hip joint can replace the painful hip joint with the above-mentioned artificial hip joint to restore the joint function and relieve the pain.
  • FIGS. 8 to 10 show the acetabular cup removing apparatus, which correspond to FIGS. 2, 3 and 4, respectively, of the Korean Patent Laid-Open Publication. For convenience, the reference numerals are displayed without modification.
  • Such a conventional acetabular cup detaching apparatus includes a rotating body unit that receives power and a cutting unit that is in close contact with an inner circumferential surface of the acetabular cup and rotates together with the body to cut the acetabular portion having the acetabular cup attached thereto.
  • the cutting portion includes a rotation cutter for cutting the acetabular portion with the acetabular cup while being rotated together with the body portion, and an angle adjusting portion for adjusting the rotation angle of the rotary cutter such that the rotary cutter cuts the acetabular portion along the shape of the acetabular cup .
  • the angle adjuster includes an adjusting lever arranged to be rotatable forward or rearward on the inside of the housing portion, and a rotary lever that sequentially rotates the rotary cutter at a predetermined angle while moving to the front side in three steps in accordance with the rotation of the adjusting lever, And an adjuster which is positioned when the movement is completed.
  • such a conventional acetabular cup removing device for a hip joint has a configuration in which the pivoting cutter returns to its original position only after completing the three-step angle adjustment. Therefore, in order to set the angle of the pivoting cutter to the previous angle, the angle adjustment of the three steps must be completed and then adjusted again in the original position, which is inconvenient to use and requires a long procedure time.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a cutting tool which is capable of evenly cutting a surface of a cut bobbin portion, adjusting a tilting angle of the cutter to a previous angle, And an apparatus for removing the acetabular cup for a hip joint.
  • a acetabular cup removing apparatus for a hip joint includes a main driving unit; A main shaft rotatable by a driving force of the main driving unit; A cutter part provided at a front end of the main shaft and capable of tilting along a portion of the acetabular cup to which the acetabular cup is implanted and cutting the acetabular part while being rotated by the main shaft; And an endless control unit for continuously controlling the tilting angle of the cutter unit while continuously moving in the forward and backward directions relative to the main shaft.
  • the endless control portion may include a slider capable of moving relative to the main shaft in the front-rear direction on the outer circumferential surface of the main shaft, a rear end portion of the slider being connected to the front end portion, And a power transmitting member for tilting the cutter portion by transmitting a moving force of the slider.
  • the endless adjustment portion further includes a bearing portion that allows the main shaft and the slider to rotate relative to the pull holding clamp smoothly.
  • a rear cover is positioned at the rear end of the pull holding clamp to support the pull holding clamp so as not to be pushed back, and the rear cover is fixed to the main shaft.
  • the power transmitting member includes a power transmitting member body portion surrounding the main shaft so as to be slidable relative to the main shaft, and a power transmitting member having one end rotatably connected to the power transmitting member body portion in a relatively pivotable manner, And a power transmission arm rotatably connected to the cutter portion to tilt the cutter portion.
  • the power transmitting member may further include an elastic supporting portion that elastically supports the power transmitting member body portion to the main shaft.
  • the elastic supporting portion may include a hollow portion formed in the main shaft in the longitudinal direction thereof; A guide groove formed to penetrate the side surface of the main shaft and communicated with the hollow portion; An elastic body inserted into the hollow portion; And a connecting member connecting the power transmitting member body and the elastic body through the guide groove.
  • One end of the hollow portion is placed in a closed state, one end of the elastic body is supported at one end of the hollow portion, and the other end of the elastic body is supported by the connecting member.
  • the cutter portion includes a cutter and a tilting portion for tilting the cutter.
  • the cutter tilting portion includes a first tilting member connected to a front end of the main shaft and having a hinge hole in a direction orthogonal to the axial direction of the main shaft; A second tilting member rotatably inserted into the hinge hole and rotatably connected with the other end of the power transmission arm; And a connection bracket having one end connected to the second tilting member and the other end connected to the cutter to form a cutting locus corresponding to the acetabular portion while the main shaft rotates while the cutter is tilted.
  • the bearing portion may include a first bearing disposed between the pull holding clamp and the slider at a front portion of the pull holding clamp and a second bearing disposed between the pull holding clamp and the main shaft, And a thrust bearing disposed between the pull holding clamp and the main shaft and including a third bearing disposed between the pull holding clamp and the main shaft at a rear portion of the pull holding clamp.
  • the slider and the power transmitting member may be integrally formed.
  • the acetabular cup removing device for a hip joint can have the following effects.
  • the tilting angle of the cutter can be adjusted without any change by continuously moving the tilting adjuster in the longitudinal direction along the main shaft, the tilting angle of the cutter can be unevenly cut, .
  • the cutter can be positioned immediately where more cutting is required among the acetabular portions, and the tilting angle of the cutter can be adjusted by the angle immediately before, so that it is easy to use and the procedure time can be shortened.
  • FIG. 1 is a front view schematically showing an acetabular cup removing apparatus for a hip joint according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view schematically showing the acetabular cup detaching device for the hip joint of FIG. 1;
  • FIG. 3 is an exploded perspective view schematically showing a cutting portion of the acetabular cup removing device for the hip joint of FIG.
  • FIG. 4 is a schematic perspective view of a cutting part of the acetabular cup removing device for the hip joint of FIG. 1, schematically showing a state in which the angle of the rotary cutter is adjusted along the outer circumferential surface of the acetabular cup with an additional acetabular cup.
  • FIG. 5 is a cross-sectional view of the acetabular cup removing device for a hip joint of FIG. 1 cut by the V-V line.
  • FIG. 6 is a cross-sectional view schematically showing a state in which the angle of the rotary cutter of the acetabular cup detaching device for a hip joint of FIG. 2 is adjusted.
  • FIG. 7 is an exemplary view showing the operation state of the acetabular cup removing device for the hip joint of FIG. 1, and shows a state in which the cutter is tilted by moving the endless regulating portion 140 forward.
  • Fig. 8 shows a conventional acetabular cup removing apparatus for a hip joint.
  • Fig. 9 schematically shows a cross section of the acetabular cup removing device for the hip joint of Fig. 8;
  • Fig. 10 schematically shows a state in which the pivoting cutter of the acetabular cup removing device for the hip joint of Fig. 8 is disassembled.
  • the present invention newly derives the configuration of the endless regulating part to solve the above-described problem in the existing acetabular cup removing device for a hip joint manufactured by the present applicant. Therefore, the related structures will be described in detail below, and the remaining structures are not related to the gist of the present invention, so that the description thereof will be omitted or simplified.
  • the acetabular cup removing device 100 for a hip joint includes a main driving part 110, a main shaft 120, a cutter part 150, And an endless regulator 140.
  • the main driving unit 110 is a component that rotates the main shaft 120, as shown in FIG.
  • the main driving unit 110 includes a rotating motor 111 and a battery 112 for supplying power to the rotating motor 111. [ Therefore, when the main drive unit 110 is driven, the cutter unit 150 provided at the front end of the main shaft 120 can rotate around the main shaft 120 as a center axis. Meanwhile, the main driving unit 110 may be provided inside the first handle 160.
  • the main shaft 120 is a component for transmitting the driving force of the main driving part 110 to the cutter part 150.
  • 130 may have a predetermined length. 1
  • a first handle 160 is provided at a rear end of the main shaft 120
  • a second handle 170 is provided at an intermediate portion of the main shaft 120.
  • the practitioner can support the main shaft 120 by holding the first handle 160 with one hand and holding the second handle 170 with the other hand.
  • a bearing portion 143 may be provided between the main shaft 120 and the endless adjusting portion 140 to smoothly support the main shaft 120 when the main shaft 120 rotates.
  • the cutter unit 150 includes a cutter 1501 and a cutter tilting unit 1502 for tilting the cutter 1501.
  • the cutter unit 150 is a component that substantially cuts the acetabular portion.
  • the configuration of the cutter of the acetabular cup removing device for the artificial hip joint is similar. 1, 2, and 6, the cutter unit 150 may be provided at the distal end of the main shaft 120 and may be tilted along a portion of the acetabular cup where the acetabular cup is implanted . Accordingly, the cutter unit 150 is rotated around the main shaft 120 as a center axis in accordance with the rotation of the main shaft 120, and can cut the acetabular portion while being tilted along the acetabular portion.
  • the cutter 1501 can be tilted along the acetabular portion by the cutter tilting portion 1502.
  • the cutter tilting portion 1502 may include a first tilting member 151, a second tilting member 152, and a connection bracket 153, as shown in FIGS.
  • the first tilting member 151 is provided at the front end of the main shaft 120 and has a hinge hole 151a formed in a direction orthogonal to the central axis of the main shaft 120.
  • the second tilting member 152 is rotatably inserted into the hinge hole 151a and one end of the power transmitting arm 148 of the power transmitting member 144, which will be described later, is rotatably connected thereto.
  • the connection bracket 153 is a component for forming a cutting locus (locus of approximately hemispherical shape) corresponding to the acetabular portion while the main shaft 120 is rotated and the cutter 1501 is being tilted.
  • connection bracket 153 may be fixed to one end of the second tilting member 152 and the other end of the connection bracket 153 may be fixed to the cutter 1501.
  • Reference numeral 154 in Fig. 3 denotes a coupling means for coupling the cutter 1501 and the connection bracket 153.
  • reference numeral 10 denotes an acetabular cup
  • 20 denotes an acetabular cup, Quot
  • support cup " for supporting the first tilting member 151 to the first tilting member 10, respectively.
  • the endless regulating unit 140 continuously moves along the main shaft 120 in the forward and backward direction (the up and down direction in FIG. 6), while moving the cutter tilting unit 1502 It is a component that adjusts the tilting angle without permission.
  • the cutter 1501 is provided at a position where more cutting is required among the acetabular portions through the movement in the forward and backward directions, And the tilting angle of the cutter 1501 can be directly adjusted to the immediately preceding angle, so that it is easy to use and the procedure time can be shortened.
  • the endless adjustment portion 140 may include a slider 141, a grip fixing clamp 142, a bearing portion 143, and a power transmitting member 144.
  • the slider 141 and the power transmitting member 144 may be integrally formed.
  • the slider 141 relatively moves with respect to the main shaft 120 in the front and rear direction on the outer circumferential surface of the main shaft 120 and pushes the power transmitting member 144 in contact with the front end of the slider 141 forward,
  • the tilting portion 150 can be tilted.
  • the tilting force of the cutter unit 150 is transmitted to the second tilting member 150 of the cutter tilting unit 150 connected to the power transmission arm 1442 of the power transmission member 144 and the one end of the power transmission arm 1442,
  • the second tilting member 152 and the connection bracket 153 connected to one end of the second tilting member 152, as shown in FIG.
  • the slider 141 is extended from the front end and the rear end of the slider 141 in a dotted line to indicate the position where the slider 141 is disposed around the main shaft 120, The state of being separated from the acetabular cup removing device is shown.
  • the knob fixing clamp 142 is a component to which the second knob 170 is fixed, and a front cover 147 is provided at the front end thereof.
  • a rear cover 146 is disposed at the rear end of the handle fixing clamp 142, and the rear cover 146 supports the knob fixing clamp 142 so as not to be pushed back.
  • 146 may be fixed to the main shaft 120.
  • the rear end of the slider 141 is connected to the front end of the pull holding clamp 142.
  • the rear end portion of the slider 141 is engaged with the front cover 147 of the pull holding clamp 142 without being separated from the rear end portion of the slider 141 (e.g., the diameter of the rear end portion of the slider is larger than the inner diameter of the front cover, And is relatively rotatable with respect to the main shaft 120.
  • the bearing portions 143 may be disposed to facilitate rotation of the main shaft 120 and the slider 141 that are relatively rotatable with the pull holding clamp 142.
  • a bearing 143a is provided between the grip fixing clamp 142 and the slider 141
  • a bearing 143b is provided between the grip fixing clamp 142 and the main shaft 120
  • a bearing 143c may be disposed at the rear end portion of the pull holding clamp 142 in front of the rear cover 146.
  • a thrust bearing 143d that applies a load in the axial direction and pushes the rear end of the slider 141 when the endless adjustment unit 140 moves forward moves the gripping fixture clamp 142 and the main shaft 120, As shown in FIG.
  • the arrangement of the bearings is not limited to the example described above and may be modified such that the relative rotation of the main shaft 120 and the slider 141 is smoothly performed to the knob fixing clamp 142, In order to facilitate the movement of the bearings, the bearings may be arranged in various ways.
  • the power transmitting member 144 transmits the pushing force (moving force) of the slider 141 to the second tilting member 152 of the cutter tilting unit 1502.
  • the power transmitting member 144 includes a power transmitting member body 1441 that surrounds the main shaft 120 so as to be slidable relative to the main shaft 120 and contacts the front end of the slider 141, And a power transmission arm 1442 rotatably connected to the body portion 1441 of the power transmitting member and the other end rotatably connected to the cutter tilting portion 1502.
  • the power transmitting member 144 further includes an elastic supporting portion 145 for elastically supporting the power transmitting member 144 to the main shaft 120 . Therefore, when the slider 141 is moved forward and the power transmitting member 144 is pushed forward, the power transmitting member 144 can be moved slowly while pressing the elastic supporting portion 145 without moving rapidly, so that the tilting of the cutter 1501 The angle can be controlled more finely. Even if the operator does not apply a force to the endless regulating part 140 in the backward direction separately when the operator attempts to move the endless regulating part 140 to the rear side, the elastic supporting part 145 prevents the slider 141 and the endless regulating part 140 can be retreated, and the convenience of the operation can be further secured.
  • the elastic supporting portion 145 may include a hollow portion 145a, a guide groove 145b, an elastic body 145c, and a connecting member 145d, as shown in FIG.
  • the hollow portion 145a may be formed in the longitudinal direction of the main shaft 120 where the elastic body 145c is placed.
  • the guide groove 145b guides the movement of the connecting member 145d and is formed to penetrate the side surface of the main shaft 120 and can communicate with the hollow portion 145a.
  • the elastic member 145c is inserted into the hollow portion 145a and the connecting member 145d has a bar shape to connect the power transmitting member 144 and the elastic member 145c through the guide groove 145b .
  • a coil spring or the like may be used as the elastic body 145c.
  • one end of the hollow portion 145a may be closed (clogged) through a connection with the first tilting member 151.
  • One end of the elastic body 145c may be supported at one end of the hollow portion 145a and the other end of the elastic body 145c may be supported at the connection member 145d.
  • the guide groove 145b can be determined so as to guide the movement of the connecting member 145d in accordance with the moving range of the power transmitting member 144 in the forward and backward directions.
  • the slider 141 has been described as a separate component separate from the power transmitting member 144 in the present embodiment, the slider 141 and the power transmitting member 144 may be integrally formed.
  • FIG. 7 shows a state in which the endless regulating part 140 is moved forward to sequentially tilt the cutter 1501 forward (counterclockwise).
  • FIG. 7A corresponds to FIG. 2
  • FIG. 7C corresponds to FIG. 6, respectively.
  • the second grip 170 is pushed forward to move the grip fixing clamp 142 forward, in order to tilt the cutter 1501 as desired.
  • the thrust bearing 143d of the endless regulating portion 140 in contact with the rear end of the slider 141 pushes the slider 141 connected so as not to fall into the grip fixing clamp 142.
  • the power transmission arm 1442 then tilts the cutter tilting portion 1502 while the cutter 1501 is also tilted together.
  • the power transmitting member 144 moves forward
  • the connecting member 145d also moves forward to compress the elastic body 145c.
  • FIG. 7 (b) when the user moves the cutter 1501,
  • the cutter 1501 can be automatically tilted backward by a predetermined angle owing to the elastic force of the elastic body 145c if the force for pushing the second handle 170 forward is reduced.
  • the tilting angle of the cutter can be adjusted without any change, the tilting angle of the cutter can be controlled continuously by moving the endless adjusting unit continuously in the longitudinal direction along the main shaft, .
  • the cutter can be positioned at a position where more cutting is required among the acetabular portions by moving the endless adjustment portion in the forward and backward directions, the tilting angle of the cutter can be adjusted to the angle immediately before, A positive effect can also be expected in shortening the recovery time of patients.
  • the present invention can be used to remove acetabular cups for artificial hip joints.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne un appareil de retrait de cupule acétabulaire pour une articulation de hanche artificielle. Un appareil de retrait de cupule acétabulaire pour une articulation de hanche artificielle selon un mode de réalisation de la présente invention comprend : une unité d'entraînement principale ; un arbre principal qui est rotatif par une force d'entraînement de l'unité d'entraînement principale ; une unité de coupe qui est disposée au niveau d'une extrémité avant de l'arbre principal, inclinable le long d'une partie acétabulaire dans laquelle une cupule acétabulaire a été implantée, et coupe la partie acétabulaire tout en étant entraînée en rotation par l'arbre principal ; et une unité de réglage continu pour régler en continu un angle d'inclinaison de l'unité de coupe tout en se déplaçant en continu dans une direction vers l'avant et vers l'arrière par rapport à l'arbre principal.
PCT/KR2018/009308 2017-08-23 2018-08-14 Appareil de retrait de cupule acétabulaire pour articulation de hanche artificielle WO2019039786A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201880054979.7A CN111050704B (zh) 2017-08-23 2018-08-14 人工髋关节用髋臼杯拆除装置
US16/634,117 US11484417B2 (en) 2017-08-23 2018-08-14 Acetabular cup removing apparatus for artificial hip joint
JP2020503825A JP6935959B2 (ja) 2017-08-23 2018-08-14 人工股関節用髀臼カップ脱去装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20170106590 2017-08-23
KR10-2017-0106590 2017-08-23
KR1020180094672A KR102103774B1 (ko) 2017-08-23 2018-08-14 인공 고관절용 비구컵 탈거 장치
KR10-2018-0094672 2018-08-14

Publications (1)

Publication Number Publication Date
WO2019039786A1 true WO2019039786A1 (fr) 2019-02-28

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PCT/KR2018/009308 WO2019039786A1 (fr) 2017-08-23 2018-08-14 Appareil de retrait de cupule acétabulaire pour articulation de hanche artificielle

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WO (1) WO2019039786A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060200165A1 (en) * 2005-03-01 2006-09-07 Howmedia Osteonics Corp. Acetabular shell removal instrument
KR101402893B1 (ko) * 2013-01-22 2014-06-02 주식회사 코렌텍 비구컵 제거시스템
WO2014133536A1 (fr) * 2013-03-01 2014-09-04 Stryker Corporation Dispositif de retrait de cotyle prothétique comprenant un ensemble d'indexage pour faire tourner la lame de retrait autour du cotyle
WO2017019327A1 (fr) * 2015-07-27 2017-02-02 Hip Innovation Technology, LLC Outil et procédé pour le prélèvement d'une bille acétabulaire d'une cupule acétabulaire dans une prothèse de remplacement de la hanche
KR20170015095A (ko) * 2015-07-31 2017-02-08 아이메디컴(주) 인공고관절용 비구컵 탈거 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060200165A1 (en) * 2005-03-01 2006-09-07 Howmedia Osteonics Corp. Acetabular shell removal instrument
KR101402893B1 (ko) * 2013-01-22 2014-06-02 주식회사 코렌텍 비구컵 제거시스템
WO2014133536A1 (fr) * 2013-03-01 2014-09-04 Stryker Corporation Dispositif de retrait de cotyle prothétique comprenant un ensemble d'indexage pour faire tourner la lame de retrait autour du cotyle
WO2017019327A1 (fr) * 2015-07-27 2017-02-02 Hip Innovation Technology, LLC Outil et procédé pour le prélèvement d'une bille acétabulaire d'une cupule acétabulaire dans une prothèse de remplacement de la hanche
KR20170015095A (ko) * 2015-07-31 2017-02-08 아이메디컴(주) 인공고관절용 비구컵 탈거 장치

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