DE102011118554A1 - Fixing device for fixing of disrupted soft tissue on associated bone, is formed of plastic with memory effect, where fixing device is inserted into bore introduced in bone in initial state of fixing - Google Patents
Fixing device for fixing of disrupted soft tissue on associated bone, is formed of plastic with memory effect, where fixing device is inserted into bore introduced in bone in initial state of fixing Download PDFInfo
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- DE102011118554A1 DE102011118554A1 DE201110118554 DE102011118554A DE102011118554A1 DE 102011118554 A1 DE102011118554 A1 DE 102011118554A1 DE 201110118554 DE201110118554 DE 201110118554 DE 102011118554 A DE102011118554 A DE 102011118554A DE 102011118554 A1 DE102011118554 A1 DE 102011118554A1
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- Germany
- Prior art keywords
- bone
- fixing
- soft tissue
- fixing device
- plastic
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
-
- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0811—Fixation devices for tendons or ligaments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00411—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like actuated by application of energy from an energy source outside the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
- A61B2017/00871—Material properties shape memory effect polymeric
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00982—General structural features
- A61B2017/00986—Malecots, e.g. slotted tubes, of which the distal end is pulled to deflect side struts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0403—Dowels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0427—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors having anchoring barbs or pins extending outwardly from the anchor body
- A61B2017/0437—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors having anchoring barbs or pins extending outwardly from the anchor body the barbs being resilient or spring-like
-
- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0811—Fixation devices for tendons or ligaments
- A61F2002/0847—Mode of fixation of anchor to tendon or ligament
- A61F2002/0852—Fixation of a loop or U-turn, e.g. eyelets, anchor having multiple holes
-
- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0811—Fixation devices for tendons or ligaments
- A61F2002/0847—Mode of fixation of anchor to tendon or ligament
- A61F2002/0858—Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
-
- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0811—Fixation devices for tendons or ligaments
- A61F2002/0876—Position of anchor in respect to the bone
- A61F2002/0888—Anchor in or on a blind hole or on the bone surface without formation of a tunnel
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0061—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof swellable
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Fixieren von abgerissenem Weichteilgewebe am zugehörigen Knochen.The invention relates to a device for fixing demolished soft tissue on the associated bone.
Aufgrund von Überbeanspruchung könne Bänder, Sehnen oder andere Weichteilgewebe abreißen. Es ist dann notwendig, diese wieder am zugehörigen Knochen zu fixieren.Overuse could cause tearing of ligaments, tendons, or other soft tissue. It is then necessary to fix these again on the associated bone.
Für diese Wiederbefestigung ist es bekannt, die abgerissenen Weichteilgewebe mittels formstabiler Implantate aus Metall, Kunststoff, biodegradierbarem Kunststoff und Hydroxylapatiten oder Mischungen aus Letzteren zu verwenden. Allerdings sind diese formstabilen Implantate nicht optimal. Wird beispielsweise ein abgerissenes Band mittels einer Schraube im Knochen befestigt, wird durch das Eindrehen der Schraube in den Knochen ein Drehmoment ausgeübt, was die Position des zu befestigenden Bandes in nachteiliger Weise verändert.For this re-attachment, it is known to use the demolished soft tissue by means of dimensionally stable implants made of metal, plastic, biodegradable plastic and hydroxylapatite or mixtures of the latter. However, these dimensionally stable implants are not optimal. If, for example, a torn-off band is fastened in the bone by means of a screw, a torque is exerted by screwing the screw into the bone, which adversely changes the position of the band to be fastened.
Davon ausgehend liegt daher der Erfindung die Aufgabe zugrunde, eine verbesserte Vorrichtung zum Fixieren von abgerissenem Weichteilgewebe am zugehörigen Knochen zu schaffen.On this basis, it is therefore an object of the invention to provide an improved device for fixing torn soft tissue on the associated bone.
Die technische Lösung ist gekennzeichnet durch die Merkmale des Anspruchs 1.The technical solution is characterized by the features of
Die Grundidee der erfindungsgemäßen Fixiervorrichtung für abgerissenes Weichteilgewebe am zugehörigen Knochen liegt in der Verwendung eines Implantats aus sogenanntem Memory-Kunststoff. Darunter ist ein Kunststoff zu verstehen, welcher nach einer Verformung zum vorher eingestellten Ausgangszustand zurückkehrt. Der ”Auslöser” für diese ”Rückentwicklung” ist eine memoryspezifische Behandlung des Kunststoffs insbesondere mit Wärme oder mit UV-Licht. Bei der erfindungsgemäßen Verwendung dieses Kunststoffs mit Memory-Effekt weist dieser nach der Ausgangs-Verformung eine Form auf, in welcher die durch das Kunststoffteil definierte Fixiervorrichtung in eine zuvor in den Knochen eingebrachte Bohrung einsetzbar ist, in dieser Fixierposition wird dann der Kunststoff der memoryspezifischen Behandlung unterworfen, so daß der Kunststoff in seine Ursprungsform zurückkehrt und sich dabei derart ausdehnt, daß er sich selbstständig in der Bohrung des Knochens festklemmt. Dadurch ist eine sichere Fixation des Weichteilgewebes am Knochen gewährleistet. Diese Implantate aus Kunststoff mit Memory-Effekt haben etliche Vorteile. So sind zunächst nur kleine Insertionsbohrungen im Knochen notwendig, insbesondere kleinere Insertionsbohrungen im Vergleich zu den bisherigen Techniken. Ein weiterer Vorteil ist eine widerstandsfreie Implantation. Dies bedeutet, daß die Fixiervorrichtung aus dem Memory-Kunststoff ohne großen Kraftaufwand in die Knochenbohrung eingeführt werden kann. Ein weiterer Vorteil sind höhere Ausreißkräfte des wiederbefestigten Weichteilgewebes sowie erleichterte endoskopische Operationsverfahren. Schließlich sind mit dieser erfindungsgemäßen Fixiereinrichtung neue Operationsverfahren möglich.The basic idea of the fixation device according to the invention for torn soft tissue on the associated bone is the use of an implant made of so-called memory plastic. This is to be understood as meaning a plastic which returns to the previously set initial state after deformation. The "trigger" for this "reverse development" is a memoryspecific treatment of the plastic, in particular with heat or with UV light. When using this plastic memory effect according to the invention, this has after the initial deformation on a form in which the defined by the plastic part fixing device is inserted into a previously introduced into the bone bore, in this fixing position then the plastic memoryspecific treatment subjected so that the plastic returns to its original shape and thereby expands so that it automatically clamps in the bore of the bone. This ensures a secure fixation of the soft tissue on the bone. These plastic implants with memory effect have several advantages. Thus, initially only small insertion holes in the bone are necessary, in particular smaller insertion holes in comparison to the previous techniques. Another advantage is a resistance-free implantation. This means that the fixing device can be inserted from the memory plastic without much effort in the bone bore. Another advantage is higher tear-out of the re-attached soft tissue and easier endoscopic surgical procedures. Finally, with this fixing device according to the invention new surgical procedures are possible.
Wie bereits ausgeführt, kann es sich gemäß der Weiterbildung in Anspruch 2 bei der memoryspezifischen Behandlung um die Einwirkung von Wärme oder von UV-Licht handeln.As already stated, it can be according to the embodiment in
Die Weiterbildung gemäß Anspruch 3 schlägt die Verwendung der erfindungsgemäßen Fixiervorrichtung für Weichteilgewebe (beispielsweise Bänder) vor, dessen Ende in der Knochenbohrung festgelegt ist. Dies bedeutet, daß nach Einbringen der Knochenbohrung das Sehnen- oder Bandgewebe in diese geschaffene Bohrung eingezogen wird. Anschließend wird das Implantat aus Memory-Kunststoff eingebracht, um anschließend durch Einwirkung von Wärme oder UV-Licht dieses Implantat so auszudehnen, daß eine feste Verankerung des Weichteilgewebes im Knochen geschaffen ist. Die Verankerung des in der Knochenbohrung befindlichen Endes des Weichteilgewebes erfolgt dabei dergestalt, daß durch die Ausdehnung des Kunststoffs das Weichteilgewebe zwischen diesem Kunststoff und der Innenwandung der Knochenbohrung zusammengequetscht wird.The development according to
Die Weiterbildung gemäß Anspruch 4 schlägt eine weitere Variante in der Verwendung der erfindungsgemäßen Fixiervorrichtung vor, bei welcher das Ende des Weichteilgewebes nicht in der Knochenbohrung festgelegt werden kann, da dadurch das Weichteilgewebe verkürzt würde. Dies ist beispielsweise bei Sehnen der Fall. Eine Sehnenverkürzung ist jedoch nicht hinnehmbar. Aus diesem Grunde schlägt diese Ausführungsvariante vor, daß in die Knochenbohrung ein Nahtanker aus dem vorbeschriebenen Memory-Kunststoff eingebracht wird. Auch dieser klemmt sich durch Wärme oder UV-Licht aufgrund seiner Ausdehnung in der Knochenbohrung fest. Diese Fixiervorrichtung in Form eines Nahtankers dient als Halteeinrichtung für ein Nahtmaterial, welches am Ende des Weichteilgewebes angenäht wird. Dieses Nahtmaterial schafft somit die Verbindung zwischen dem Nahtanker und dem zu befestigenden Ende des Weichteilgewebes. Auf diese Weise ist eine feste Verankerung im Knochen gewährleistet.The development according to
Zwei Ausführungsbeispiele einer erfindungsgemäßen Vorrichtung zum Fixieren von abgerissenem Weichteilgewebe am zugehörigen Knochen wird nachfolgend anhand der Zeichnungen beschrieben. In diesen zeigt:Two embodiments of a device according to the invention for fixing demolished soft tissue on the associated bone will be described below with reference to the drawings. In these shows:
In diesen so präparierten Knochen
Anschließend wird gemäß
Die Besonderheit dieses Kunststoffes der Fixiervorrichtung
Bei der Ausführungsform der
Als eigentliche Befestigung für das Weichteilgewebe
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- WeichteilgewebeSoft tissue
- 22
- Knochenbone
- 33
- Bohrungdrilling
- 44
- Bohrungsverlängerunghole extension
- 55
- Fadenthread
- 66
- Fixiervorrichtungfixing
- 77
- Nahtmaterialsutures
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110118554 DE102011118554A1 (en) | 2011-11-16 | 2011-11-16 | Fixing device for fixing of disrupted soft tissue on associated bone, is formed of plastic with memory effect, where fixing device is inserted into bore introduced in bone in initial state of fixing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110118554 DE102011118554A1 (en) | 2011-11-16 | 2011-11-16 | Fixing device for fixing of disrupted soft tissue on associated bone, is formed of plastic with memory effect, where fixing device is inserted into bore introduced in bone in initial state of fixing |
Publications (1)
Publication Number | Publication Date |
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DE102011118554A1 true DE102011118554A1 (en) | 2013-05-16 |
Family
ID=48145128
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Application Number | Title | Priority Date | Filing Date |
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DE201110118554 Withdrawn DE102011118554A1 (en) | 2011-11-16 | 2011-11-16 | Fixing device for fixing of disrupted soft tissue on associated bone, is formed of plastic with memory effect, where fixing device is inserted into bore introduced in bone in initial state of fixing |
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DE (1) | DE102011118554A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080228186A1 (en) * | 2005-04-01 | 2008-09-18 | The Regents Of The University Of Colorado | Graft Fixation Device |
-
2011
- 2011-11-16 DE DE201110118554 patent/DE102011118554A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080228186A1 (en) * | 2005-04-01 | 2008-09-18 | The Regents Of The University Of Colorado | Graft Fixation Device |
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R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140603 |