[go: up one dir, main page]

WO1990006720A1 - Procede et appareil de determination de l'integrite de fixation d'un implant osseux - Google Patents

Procede et appareil de determination de l'integrite de fixation d'un implant osseux Download PDF

Info

Publication number
WO1990006720A1
WO1990006720A1 PCT/US1989/005683 US8905683W WO9006720A1 WO 1990006720 A1 WO1990006720 A1 WO 1990006720A1 US 8905683 W US8905683 W US 8905683W WO 9006720 A1 WO9006720 A1 WO 9006720A1
Authority
WO
WIPO (PCT)
Prior art keywords
bone
implant
vibrator
limb
output signal
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/US1989/005683
Other languages
English (en)
Inventor
Alexander D. Rosenstein
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1990006720A1 publication Critical patent/WO1990006720A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0048—Detecting, measuring or recording by applying mechanical forces or stimuli
    • A61B5/0051—Detecting, measuring or recording by applying mechanical forces or stimuli by applying vibrations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4504—Bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4528—Joints
    • 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
    • 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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • 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
    • A61F2/468—Testing instruments for artificial joints
    • 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
    • A61F2/4657—Measuring instruments used for implanting artificial joints
    • A61F2002/4671—Measuring instruments used for implanting artificial joints for measuring resonant frequency

Definitions

  • the present invention relates, in general, to diagnostic methods and apparatus for determining the integrity of bone implants and, more particularly, to diagnostic methods and apparatus for detecting the loosening of a cemented femoral hip implant, Background Art
  • Total hip replacement is one of the most commonly performed orthopedic procedures.
  • the acetabulum of the hip is replaced with a cup-shaped socket device which receives and articulates with a prosthetic femoral implant which consists of a ball portion and a stem portion which inserted fixedly in the femur.
  • the femur is the longest bone in the skeleton, and is almost perfectly cylindrical in the greater part of its extent.
  • the head At its proximate portion are the head, the neck, a greater trochanter and a lesser trochanter.
  • the head is globular and generally hemispheric in shape.
  • the surface of the femur head is smoothly contoured and, under normal conditions, moves freely within the acetabulum of the hip.
  • the neck of the femur is a pyramidal process of bone connecting the head with the femur body, disposed at approximately a 135° angle relative to the shaft of the bone.
  • the greater trochanter is a large, irregular, quadrilateral eminence which projects from the angle of the junction between the neck of the femur and the body.
  • the lesser trochanter is a conical imminence which projects posteriorly from the base of the neck.
  • An intertrochanteric line runs obliquely from the greater trochanter to the lesser trochanter on the anterior surface of the femur.
  • the prosthetic cup-shaped device generally composed of a high molecular weight polyethylene (sometimes supplemented by a metallic shell) , is fixed into the acetabulum with use of bone cement or by other mechanical means, and the replacement of portions of the femur with the usually metallic "ball and stem" device, stem portion of which fixed into the femur with either cement or other mechanical means.
  • the prosthetic devices cooperate swivelly to permit articulation between the femur and the hip.
  • the patient gains mobility of the lower extremity and freedom from pain.
  • the proximal portion of the femur comprising the head and neck, are removed, generally by incision above the intertrochanteric line.
  • the femoral prosthetic device is also composed of corrosion resistant metal alloy.
  • the femoral device includes a head, a neck, and a stem.
  • the stem is adapted for insertion rigidly and securely within an • opening formed in the femur, after the femoral head and neck have been surgically removed.
  • the proximal femur os filled with bone cement, then the femoral implant is inserted.
  • x-ray .examination two procedures have been utilized in the attempt to diagnose prosthesis implant integrity.
  • One of such procedures is to inspect the bone/implant area by x-ray .examination.
  • This technique has several limitations. In the first place, the technique is not entirely accurate, since it frequently fails to identify areas of implant loosening. Additionally, the x-ray technique entails the exposure of the patient to unwanted radiation. In addition, such techniques are generally ineffective in diagnosing implant failure at an early stage. Further, the x-ray use in such a technique presents a health hazard to the patient.
  • Another technique for attempting to evaluate bone implant fixation integrity utilizes conventional or digital subtraction arthrography methods. These methods are limited, because they utilize a contrast medium which must be introduced in close proximity to the area of cement failure, otherwise the medium does not effectively disclose the failure.
  • arthrographic techniques often produce false negatives. Reliance on such false negatives can lead to injury to the patient.
  • Another important limitation of arthrographic techniques is the fact that it is invasive, causes patient discomfort and, has a risk of introducing infection.
  • a further limitation of the Chung technique is that it is invasive, utilizing a needle driven by a speaker diaphragm.
  • measurements could only be made by using a hypodermic needle brought into contact with the underlying bone.
  • Such a technique would certainly be painful and carry the risk of infection.
  • the above and further objects of the present invention are realized by providing a method and apparatus for determining hip implant integrity by detecting loosening of the implant imbedded in a bone of a limb of a patient.
  • the implant fixation integrity determining apparatus includes a vibrator, which is pressed into engagement with the limb to impart vibratory motion to the bone.
  • the vibrator is controlled to cause the vibratory motion to have a predetermined recurring pattern.
  • a pick-up device is pressed into engagement with the limb spaced from the vibrator, over the same bone near the implant for detecting the vibratory motion transmitted through the bone implant composite to generate an output signal.
  • the recurring pattern of the output signal transmitted through the bone implant composite is analyzed.
  • Implant loosening is determined when the sustained wave superimposition is noted on the oscilloscope and/or significant secondary harmonics are noted on the spectrum ai-.alyzer. Therefore, the present invention provides a nonevasive method and apparatus for determining bone implant fixation integrity.
  • inventive technique is substantially risk free and generally painless to the patient.
  • present invention does not involve the introduction of any harmful radiation, or substances into the body of the patient and, for that reason, may be utilized repetitively with decreased patient risk.
  • inventive apparatus may be used conveniently in the physician's office to monitor limb implant fixation integrity.
  • FIG. 1 is a diagrammatic, fragmentary representation of a hip implant fixation integrity determining apparatus, which is constructed in accordance with the present invention
  • FIGS. 2-5 are waveform diagrams useful in understanding the invention. Best Mode for Carrying- Out the Invention
  • an apparatus 9 which is constructed according to the present inve. tion, and which is adapted to perform a limb implant fixation integrity diagnosis.
  • a partially sectioned human femur 10 has a hip replacement prosthesis 20, under test by the apparatus 9, applied at the distal end of the femur. While a bone is shown for illustration purposes, it should be understood that the apparatus 9 is adapted to test a live person, and thus the apparatus 9 comes into contact with the outer skin (not shown) and not directly into contact with the bone.
  • the apparatus 9 generally comprises a signal generator, such as sine wave generator 30, controls a vibrator 40 to .impart vibratory motion to the bone 10 to determine the fixation integrity of the prosthetic implant. Spaced apart from the vibrator 40.
  • a signal pickup device such as accelerometer 50 receives the vibrations transmitted through the bone implant composites 10, 20, 28.
  • An amplifier 60 enhances the output of the accelerometer 50 to enable the amplified signal indicative of the transmitted vibratory signal to be supplied to an oscilloscope 72 for graphical display purposes.
  • a spectrum analyzer 76 also processes the output of the amplifier 60 to facilitate the analysis of the signal transmitted through the bone implant composite under test.
  • a tape recorder 70 and/or a chart recorder 80 are also used to record the transmitted signals.
  • Prosthesis implant loosening can be determined when a recurring signal having a predetermined pattern, for example, in the form of a sine wave signal produced by the sine wave generator 30, is imparted to the femur, and the output signal transmitted through the bone implant composite displaying wave superimposition. This is the case, because the input signal and the output signal are substantially identical (in this example, regular sinusoid pattern without superimposition) in a nonimplanted bone, as well as in a bone in which prosthesis is firmly implanted.
  • the signal generator 30 produces the recurring input signal having a predetermined pattern in the form, for example, of a sine wave signal.
  • a generator output cable 32 supplies the input signal to the vibrator 40, which has an arm 42 connected to an enlarged spherical head or tip 44 at its outer distal end. Vibratory motion is imparted at the skin tissue (not shown) surrounding a condyle 12 of the bone 10 by the spherical tip 44.
  • the spherical tip 44 provides an effective method for imparting vibratory motion to the femur of a patient.
  • the spherical tip is about
  • the spherical tip 44 is about 19 millimeters in diameter.
  • the hip prosthesis 20 implanted in the femur 10 is conventional and includes a head 22 which is adapted to fit within acetabular cup. A neck 24 interconnects the head 22 and a stem 26. During hip replacement surgery, the stem 26 is cemented into the femur 10.
  • a cement layer 28 provides a firm, uninterrupted interposition between- he surfaces of the stem 26 and the bony tissue of the bone 10.
  • the integrity of the bone implant composite can be determined by the present invention.
  • vibratory motion having a predetermined recurring pattern in the form, for example, of a sine wave signal is imparted to the bone 10 at the lateral condyle 12.
  • the signal pickup device 50 is spaced from the lateral condyle and, as depicted in the drawing, is near the greater trochanter 14.
  • the signal from the accelerometer 50 is supplied via an accelerometer output cable 52 to the amplifier 60. After amplification, the signal is transmitted by an oscilloscope input cable 62 to the oscilloscope 72, by means of which the output signal can be analyzed and displayed.
  • the output signal from the amplifier 60 dan also be transmitted by, for example, an analyzer input cable 64 from the amplifier 60 to an analyzer 76 which is used for further analysis of the output signal.
  • the signal can be transmitted, for example, to the tape recorder 70 by means of a tape recorder input cable 66 whereby the output signal can be stored for later retrieval and analysis.
  • the output signal can be transmitted by, for example, a chart recorder input cable 74 from the oscilloscope 72 to the chart recorder 80, in order to obtain an easily readable tracing of the output signal to be used for documentation.
  • replacement hip implantation integrity can be readily determined by analysis of the output signal received via the pick-up device 50, with the input signal supplied from the generator 30.
  • the output signal will demonstrate a pure tone without wave superimposition. Where a sustained wave superimposition is observed, a diagnosis of a loose prosthesis can be made.
  • the method and apparatus herein disclosed have been utilized in both in vitro and in vivo tests.
  • femurs derived from cadavers were utilized while, for the in vivo tests, the integrity of hip implantations in living patients was performed.
  • Ten fresh cadaver femurs were obtained from pos mortem specimens and deep frozen until required. Specimens were taken from patients in the age group 31-82 years and known to be free from pathological bone disorders. The specimens were obtained from six females and four males and comprised equal numbers of right and left femurs. After defrosting, the bone was supported by clamping each end in resilient plastic foam in an attempt to simulate anatomical supports. A vibration of known frequency and power was applied over the lateral aspect of the lateral femoral condyle using a "mini-shaker" vibration apparatus 40 fitted with a 19 mm diameter spherical tip 44 and driven by a sine-wave generator 30.
  • a "mini-shaker" vibration apparatus 40 fitted with a 19 mm diameter spherical tip 44 and driven by a sine-wave generator 30.
  • the output was recorded using a PCB Piezotronics 303A03 low mass accelerometer 50 applied to the greater trochanter and connected, through an amplifier 60, to a digital storage oscilloscope 72 and an X-Y plotter 80.
  • the input frequency was scanned from 100 -1000 Hz, and the resonant frequency was determined.
  • the output waveform was studied and recorded throughout the frequency range.
  • a Charnley femoral prosthesis was then cemented in standard fashion, and vibration testing of the femur with the prosthesis firmly implanted was repeated.
  • the femoral implant was then deliberately loosened at the cement- implant interface. This was achieved by removal of a small amount of proximal cement 28 and separation of the implant from its cement mantle (cement layer) .
  • the vibration testing was again performed.
  • a frequency analysis was obtained in both the above groups using the spectrum analyzer 76.
  • the natural resonant frequency of intact cadaveric femurs varied from 220 to 375 Hz, with a mean of 302 Hz, and was unaffected by repositioning in the plastic foam clamps (not shown) .
  • Markedly differing output waveforms were observed between the cases of firmly implanted and loose femoral implants (at both the prosthesis/cement and bone/cement interfaces) .
  • the vibration signal was applied over the lateral femoral condyle, just above the joint line and output signals were recorded using the accelerometer placed over the greater trochanter. The output signals were recorded, displayed and processed as described above. Although the vibration signal was applied and detected through a significant thickness of flesh, an adequate output signal was obtained. The maximum power applied was 0.5 watts. The patients reported no feelings of discomfort.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Cardiology (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Dentistry (AREA)
  • Rheumatology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Prostheses (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Un appareil (19) permet de détecter le desserrement d'un implant (20) noyé dans un os (10) d'un membre d'un patient, et comprend un vibrateur (40) en contact avec le membre pour conférer un mouvement vibratoire à l'os. Les vibrations (40) sont contrôlées pour donner au mouvement vibratoire une configuration récurrente prédéterminée. Un censeur (50) est placé en contact avec le membre, espacé par rapport au vibrateur, sur le même os à proximité de l'implant, dans le but de détecter le mouvement vibratoire transmis par l'intermédiaire du composite de l'implant osseux et générer un signal de sortie. Un desserrement de l'implant est déterminé lorsque la configuration récurrente du signal de sortie transmis par l'intermédiaire du composite de l'implant osseux présente une superposition soutenue sur l'oscilloscope (72) et/ou des harmoniques secondaires significatives sur l'analyseur de spectre (76).
PCT/US1989/005683 1988-12-21 1989-12-20 Procede et appareil de determination de l'integrite de fixation d'un implant osseux Ceased WO1990006720A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29024088A 1988-12-21 1988-12-21
US290,240 1988-12-21

Publications (1)

Publication Number Publication Date
WO1990006720A1 true WO1990006720A1 (fr) 1990-06-28

Family

ID=23115111

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1989/005683 Ceased WO1990006720A1 (fr) 1988-12-21 1989-12-20 Procede et appareil de determination de l'integrite de fixation d'un implant osseux

Country Status (4)

Country Link
EP (1) EP0449881A4 (fr)
JP (1) JPH02246923A (fr)
CA (1) CA2006133C (fr)
WO (1) WO1990006720A1 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991006245A1 (fr) * 1989-10-24 1991-05-16 The Adelaide Bone And Joint Research Foundation Inc Analyse osseuse par vibrations
WO1992018053A1 (fr) * 1991-04-11 1992-10-29 Imperial College Of Science, Technology & Medicine Mise a l'essai d'implants
WO2000028925A3 (fr) * 1998-11-13 2000-11-23 Exogen Inc Prothese et procedes visant a induire une interposition du tissu osseux par therapie ultrasonore
WO2001037733A3 (fr) * 1999-11-23 2002-05-10 Noveon Ip Holdings Corp Appareil et methode d'evaluation du relachement d'implants et de la cicatrisation de fractures
US6413215B1 (en) 2000-04-05 2002-07-02 The University Of Vermont Implant wear debris detection apparatus and method
EP1433445A1 (fr) * 2002-12-11 2004-06-30 Universita Degli Studi Di Bologna Dispositif pour la mesure intra-opératoire de la stabilité mécanique d'une endoprothèse implantée dans un os
US6932308B2 (en) 2000-10-25 2005-08-23 Exogen, Inc. Transducer mounting assembly
US7108663B2 (en) 1997-02-06 2006-09-19 Exogen, Inc. Method and apparatus for cartilage growth stimulation
US7211060B1 (en) 1998-05-06 2007-05-01 Exogen, Inc. Ultrasound bandages
US7410469B1 (en) 1999-05-21 2008-08-12 Exogen, Inc. Apparatus and method for ultrasonically and electromagnetically treating tissue
US7429248B1 (en) 2001-08-09 2008-09-30 Exogen, Inc. Method and apparatus for controlling acoustic modes in tissue healing applications
US7429249B1 (en) 1999-06-14 2008-09-30 Exogen, Inc. Method for cavitation-induced tissue healing with low intensity ultrasound
US7628764B2 (en) 1997-02-14 2009-12-08 Exogen, Inc. Ultrasonic treatment for wounds
DE102010003279A1 (de) 2009-03-27 2010-09-30 Bader, Rainer, Prof. Dr. Vorrichtung und Verfahren zur In-situ-Messung der Verankerungsfestigkeit von Endoprothesen
US8388553B2 (en) 2004-11-04 2013-03-05 Smith & Nephew, Inc. Cycle and load measurement device
US8486070B2 (en) 2005-08-23 2013-07-16 Smith & Nephew, Inc. Telemetric orthopaedic implant
EP2717779A4 (fr) * 2011-06-09 2015-03-11 Tays Sydänkeskus Oy Dispositif et procédé pour mesurer l'aptitude du sternum à transmettre une vibration
DE102014109683A1 (de) 2014-07-10 2016-01-14 Universität Rostock Vorrichtung zur Detektion einer Kockerung und/oder Abnutzung einer Endoprothese
US9445720B2 (en) 2007-02-23 2016-09-20 Smith & Nephew, Inc. Processing sensed accelerometer data for determination of bone healing
US9492210B2 (en) 2008-10-15 2016-11-15 Smith & Nephew, Inc. Composite internal fixators
USRE46582E1 (en) 2004-06-07 2017-10-24 DePuy Synthes Products, Inc. Orthopaedic implant with sensors
CN111629656A (zh) * 2017-11-30 2020-09-04 恩都塔柯特公司 可植入牵张装置
DE102021127697A1 (de) 2021-10-25 2023-04-27 Universität Rostock, Körperschaft des öffentlichen Rechts Wechseladapter zur Ankopplung an eine Insertionsvorrichtung zum Fügen und Implantieren prothetischer Implantate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2690064B2 (ja) * 1990-11-30 1997-12-10 科学技術振興事業団 生体用骨弾性検査装置
US20090216126A1 (en) * 2005-05-03 2009-08-27 Katz Lawrence J Implantable miniaturized ultrasonic transducers
US11737705B2 (en) 2017-09-14 2023-08-29 Keio University Implant installation strength evaluation method, implant installation strength evaluation device, and program

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200814A (en) * 1963-03-12 1965-08-17 Ellis R Taylor Apparatus for measuring reflexes, tremors and the like
US3477422A (en) * 1965-10-15 1969-11-11 John M Jurist Jr Vibratory bone density determination method and apparatus
US4416269A (en) * 1980-07-11 1983-11-22 Teikoku Hormone Mfg. Co. Ltd. Apparatus for vibrating the ulna in vivo
DD225045A1 (de) * 1983-07-04 1985-07-24 Adl Der Ddr Forschungszentrum Vorrichtung einer immediatdiagnose von schaedelfrakturen
GB2156983A (en) * 1983-08-26 1985-10-16 Mintowt Czyz Witek Method and apparatus for assessing the structure and mechanical integrity of osseous systems
US4754763A (en) * 1987-06-17 1988-07-05 Noninvasive Technology, Inc. Noninvasive system and method for testing the integrity of an in vivo bone
US4819753A (en) * 1985-11-16 1989-04-11 Yakichi Higo Functional evaluation device capable of evaluating an artificial device by the use of acoustic emission

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638509Y2 (fr) * 1972-04-18 1981-09-08
JPS5733048A (en) * 1980-08-04 1982-02-23 Honda Motor Co Ltd Throttle reaction control device of car
EP0181131A3 (fr) * 1984-11-01 1987-05-20 Kent Scientific and Industrial Projects Limited Dispositif pour la détermination de la fréquence de résonance d'un os

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200814A (en) * 1963-03-12 1965-08-17 Ellis R Taylor Apparatus for measuring reflexes, tremors and the like
US3477422A (en) * 1965-10-15 1969-11-11 John M Jurist Jr Vibratory bone density determination method and apparatus
US4416269A (en) * 1980-07-11 1983-11-22 Teikoku Hormone Mfg. Co. Ltd. Apparatus for vibrating the ulna in vivo
DD225045A1 (de) * 1983-07-04 1985-07-24 Adl Der Ddr Forschungszentrum Vorrichtung einer immediatdiagnose von schaedelfrakturen
GB2156983A (en) * 1983-08-26 1985-10-16 Mintowt Czyz Witek Method and apparatus for assessing the structure and mechanical integrity of osseous systems
US4819753A (en) * 1985-11-16 1989-04-11 Yakichi Higo Functional evaluation device capable of evaluating an artificial device by the use of acoustic emission
US4754763A (en) * 1987-06-17 1988-07-05 Noninvasive Technology, Inc. Noninvasive system and method for testing the integrity of an in vivo bone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0449881A4 *

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368044A (en) * 1989-10-24 1994-11-29 The Adelaide Bone And Joint Research Foundation, Inc. Vibrational analysis of bones
WO1991006245A1 (fr) * 1989-10-24 1991-05-16 The Adelaide Bone And Joint Research Foundation Inc Analyse osseuse par vibrations
AU660456B2 (en) * 1991-04-11 1995-06-29 Imperial College Of Science, Technology And Medicine Testing implants
GB2270980B (en) * 1991-04-11 1994-08-17 Imperial College Testing implants
GB2270980A (en) * 1991-04-11 1994-03-30 Imperial College Testing implants
US5392779A (en) * 1991-04-11 1995-02-28 Imperial College Of Science, Technology & Medicine Testing implants
WO1992018053A1 (fr) * 1991-04-11 1992-10-29 Imperial College Of Science, Technology & Medicine Mise a l'essai d'implants
US7108663B2 (en) 1997-02-06 2006-09-19 Exogen, Inc. Method and apparatus for cartilage growth stimulation
US7628764B2 (en) 1997-02-14 2009-12-08 Exogen, Inc. Ultrasonic treatment for wounds
US7211060B1 (en) 1998-05-06 2007-05-01 Exogen, Inc. Ultrasound bandages
WO2000028925A3 (fr) * 1998-11-13 2000-11-23 Exogen Inc Prothese et procedes visant a induire une interposition du tissu osseux par therapie ultrasonore
US7410469B1 (en) 1999-05-21 2008-08-12 Exogen, Inc. Apparatus and method for ultrasonically and electromagnetically treating tissue
US7429249B1 (en) 1999-06-14 2008-09-30 Exogen, Inc. Method for cavitation-induced tissue healing with low intensity ultrasound
WO2001037733A3 (fr) * 1999-11-23 2002-05-10 Noveon Ip Holdings Corp Appareil et methode d'evaluation du relachement d'implants et de la cicatrisation de fractures
US6413215B1 (en) 2000-04-05 2002-07-02 The University Of Vermont Implant wear debris detection apparatus and method
US6932308B2 (en) 2000-10-25 2005-08-23 Exogen, Inc. Transducer mounting assembly
US7429248B1 (en) 2001-08-09 2008-09-30 Exogen, Inc. Method and apparatus for controlling acoustic modes in tissue healing applications
EP1433445A1 (fr) * 2002-12-11 2004-06-30 Universita Degli Studi Di Bologna Dispositif pour la mesure intra-opératoire de la stabilité mécanique d'une endoprothèse implantée dans un os
USRE46582E1 (en) 2004-06-07 2017-10-24 DePuy Synthes Products, Inc. Orthopaedic implant with sensors
US8388553B2 (en) 2004-11-04 2013-03-05 Smith & Nephew, Inc. Cycle and load measurement device
US8486070B2 (en) 2005-08-23 2013-07-16 Smith & Nephew, Inc. Telemetric orthopaedic implant
US9445720B2 (en) 2007-02-23 2016-09-20 Smith & Nephew, Inc. Processing sensed accelerometer data for determination of bone healing
US9492210B2 (en) 2008-10-15 2016-11-15 Smith & Nephew, Inc. Composite internal fixators
US10357292B2 (en) 2008-10-15 2019-07-23 Smith & Nephew, Inc. Composite internal fixators
US11096726B2 (en) 2008-10-15 2021-08-24 Smith & Nephew, Inc. Composite internal fixators
DE102010003279A1 (de) 2009-03-27 2010-09-30 Bader, Rainer, Prof. Dr. Vorrichtung und Verfahren zur In-situ-Messung der Verankerungsfestigkeit von Endoprothesen
EP2717779A4 (fr) * 2011-06-09 2015-03-11 Tays Sydänkeskus Oy Dispositif et procédé pour mesurer l'aptitude du sternum à transmettre une vibration
RU2601097C2 (ru) * 2011-06-09 2016-10-27 Тайс Сюдянкескус Ой Устройство и способ измерения коэффициента пропускания вибрации грудиной
US9788726B2 (en) 2011-06-09 2017-10-17 Tays Sydänkeskus Oy Device and method for measuring vibration transmittance of sternum
DE102014109683A1 (de) 2014-07-10 2016-01-14 Universität Rostock Vorrichtung zur Detektion einer Kockerung und/oder Abnutzung einer Endoprothese
DE102014109683B4 (de) * 2014-07-10 2016-09-15 Universität Rostock Vorrichtung zur Detektion einer Lockerung und/oder Abnutzung einer Endoprothese
CN111629656A (zh) * 2017-11-30 2020-09-04 恩都塔柯特公司 可植入牵张装置
DE102021127697A1 (de) 2021-10-25 2023-04-27 Universität Rostock, Körperschaft des öffentlichen Rechts Wechseladapter zur Ankopplung an eine Insertionsvorrichtung zum Fügen und Implantieren prothetischer Implantate
WO2023072947A1 (fr) 2021-10-25 2023-05-04 Universität Rostock Adaptateur interchangeable destiné à être accouplé à un dispositif d'insertion pour assembler et implanter des implants prothétiques

Also Published As

Publication number Publication date
JPH02246923A (ja) 1990-10-02
CA2006133A1 (fr) 1990-06-21
EP0449881A4 (en) 1992-04-01
EP0449881A1 (fr) 1991-10-09
CA2006133C (fr) 1995-10-31

Similar Documents

Publication Publication Date Title
US5024239A (en) Method and apparatus for determining osseous implant fixation integrity
CA2006133C (fr) Methode et appareil pour verifier l'integrite de la fixation d'implants osseux
Rosenstein et al. The differentiation of loose and secure femoral implants in total hip replacement using a vibrational technique: an anatomical and pilot clinical study
US6583630B2 (en) Systems and methods for monitoring wear and/or displacement of artificial joint members, vertebrae, segments of fractured bones and dental implants
Baker et al. Abductor function after total hip replacement. An electromyographic and clinical review
Le Huec et al. Distal rupture of the tendon of biceps brachii: evaluation by MRI and the results of repair
US8236005B2 (en) System and method for preventing intraoperative fracture in cementless hip arthroplasty
RICCIARDI et al. Mechanical monitoring of fracture healing using ultrasound imaging
Christensen et al. Assessment of tibial stiffness by vibration testing in situ—I. Identification of mode shapes in different supporting conditions
JP2003518973A (ja) 骨内または骨上の圧力および圧力変化の生体内測定用装置
Mathieu et al. Variation of the impact duration during the in vitro insertion of acetabular cup implants
Alshuhri et al. Development of a non-invasive diagnostic technique for acetabular component loosening in total hip replacements
Lannocca et al. Intra-operative evaluation of cementless hip implant stability: A prototype device based on vibration analysis
Choi et al. Knee Acoustic Emission Characteristics of the Healthy and the Patients with Osteoarthritis Using Piezoelectric Sensor.
US6413215B1 (en) Implant wear debris detection apparatus and method
Rieger et al. Loosening detection of the femoral component of hip prostheses with extracorporeal shockwaves: A pilot study
Shao et al. Natural frequency analysis of osseointegration for trans-femoral implant
Field et al. Proximal femoral surface strain gauge analysis of a new epiphyseal prosthesis
Yousefsani et al. A vibrational technique for in vitro intraoperative prosthesis fixation monitoring
Safaei et al. Vibration stimulation as a non-invasive approach to monitor the severity of meniscus tears
Chiu Quantitative monitoring of osseointegrated implant stability using vibration analysis
Carls et al. A comparative study of two cerclage systems
Glinkowski et al. Clinical experiences with ultrasonometric measurement of fracture healing
Schwalbe et al. Detection of defects in the human skeletal system and production of failure optimized artificial bone applying acoustic emission analysis (AEA)
Zhang et al. Monitoring the Stability of Artificial Prosthesis Performance for Hip Replacement

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1990900585

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1990900585

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1990900585

Country of ref document: EP