WO2012103881A2 - Biologischer implantierbarer gelenkersatz - Google Patents
Biologischer implantierbarer gelenkersatz Download PDFInfo
- Publication number
- WO2012103881A2 WO2012103881A2 PCT/DE2012/000415 DE2012000415W WO2012103881A2 WO 2012103881 A2 WO2012103881 A2 WO 2012103881A2 DE 2012000415 W DE2012000415 W DE 2012000415W WO 2012103881 A2 WO2012103881 A2 WO 2012103881A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- joint replacement
- pressure
- layer
- following
- walker
- Prior art date
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Classifications
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- 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
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- A61F2/30756—Cartilage endoprostheses
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- 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
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- A61F2/3603—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices implanted without ablation of the whole natural femoral head
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- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00976—Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
- A61F2310/00982—Coating made of collagen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/24—Materials or treatment for tissue regeneration for joint reconstruction
Definitions
- the invention relates to educational devices 6 for producing a biological joint replacement 5 and this biological joint replacement 5 according to the preamble of claim 1.
- the invention further relates to coatings with which the connection of the joint replacement with the milled implantation joint bed 21 is conveyed according to claim 9,
- joint wear and tear The number of arthrosis (“joint wear and tear”) is on the rise worldwide, and sooner or later it can only be remedied by joint replacement.
- joint wear and tear The current metal endoprostheses with metal, ceramic or plastic sliding surfaces have very limited durability and resilience.
- the method according to the invention in addition to the known in tissue engineering systems, Influence and effluent substances, nutrient solutions and their control procedures and equipment in the claims 1-9 devices and substances before in particular a flexion of the growing cartilage by pressure and / or shearing movements, possibly alternately or in combination with milling or grinding, as well as a former 13 and, if necessary, diffusion devices 8,
- the present invention has the object to overcome the problems of conventional mechanical endoprostheses and the limitations of previous cartilage replacement methods by an implantable biological joint replacement by the conditions for
- Claims 1 to 9 make it possible to produce a complete and implantable biological joint replacement 5, which means in particular that it has a hyaline cartilage tissue, which has the properties, in particular the resilience of a natural articular cartilage.
- the invention provides, in addition to the production of a preferably bony support layer 2, the introduction of cartilage, which according to one of the known tissue Engineering process was produced and
- This casting mold consists on one side of the support 4 or preferably of the support layer 2, on the other of a former 13 whose function can also be provided by a Walker 9a, 9g or anlieliege für 10 a diffusion device 8.
- Fabric components according to claim 8 may be attached to the former 13 or carrier 4.
- the distribution of the cartilage particles 13b in the casting mold can be promoted by a rotary device 14 of the carrier 4 or the former 13 or walkers 9a, 9f, the axis of which approximates the intended hinge axis 15, this axis being hollow to serve as a supply for the cartilage particles 13b.
- the flexing i. the pressurization of the cartilaginous layer, which is a fluctuating pressure acting on the entire joint replacement 5 by pressure exertion of the formation device 6, a pressure walker 9a with a pressure chamber 9b, or alternately through a plurality of pressure chambers 9b to different areas of the joint replacement 5.
- the Walkung takes place via a tray walker 9f, whose fulling 9g exerts pressure on the joint replacement 5 via a contact point 9h!
- the Walker 9a, 9f and / or the former .13 can also be fixedly mounted in the educational device and the carrier 4 perform the movements.
- the pressure exerted by one of the walkers 9a, 9f can also be achieved by means of a part of the part to be formed
- Joint replacement 5 slipped-over layer 10 or a former 13 (whose properties then correspond to those of the delivery layer 10).
- the formation of the bonding layer 3 and / or the preferred bony backing layer can also be based on the one given above for the cartilage layer, i. done in a similar way, as well as the.
- the formation of spongiosa trabeculae along the important load lines is thereby promoted, which leads to a load bearing support layer.
- the tray walker 9f is controlled by a moving device 12 such that the contact point 9h preferably travels over the entire surface of the part of the joint replacement 5 to be produced. Also, the pressure walker 9a with a flexible or elastic printing film 9i can via a
- Moving device 12 as a Schalenwalker 9f are moved over the surface of the joint replacement 5, wherein the contact point 9h then corresponds to the point at which the pressure is highest.
- a diffusion device 8 can act, which acts directly on the joint replacement 5 or via an abutment layer 10 and / or the former 13 and / or via a porous Walker 9a, 9f and / or the carrier 4, by the pressure the substance used for cell growth increases 8a, also in the way that pressure and negative pressure between the bottom of the joint replacement 5 and the top changes.
- this also means that the function of the diffusion device 8 and the Walk device 9 not to each other Separate, because the pressure of the
- Walk device has the same effect with respect to the pressure-Walker by a pressure walker 9a with respect to the set of hammers 5 open chambers or with a porous printing film 9i.
- a pressure walker 9a with closed pressure chambers 9b or dense pressure foil 9i or a tray walker 9f also causes the substances 8a used for cell growth in the formation device 6 to adhere both the surface of the joint replacement 5 and the wallowing shell 9g by adhesion coat, that in the increase in pressure, the diffusion of the substances 8a in the joint replacement 5 is enhanced.
- This effect is enhanced by an elastic and sponge-like porous Aufliege für 10 and / or a sponge-like porous former 13, which rest on the joint replacement 5 and is set by Walker 9a, 9f under pressure.
- milling or grinding with a surface milling / grinding device 7 can be performed as required to optimally cover the surface of the planned articular surface or the next processing step adapt.
- the joint replacement can be made in one go, or by doing it in several runs, i. that again the application or introduction of new bone or cartilage particles 13b takes place, then a repetition of the flexion, if necessary, an additional diffusion promotion and possibly the repetition of the milling - whereby this can also be done several times in succession.
- the sequence can be carried out in an educational device 6 or in several, it can be done by the carrier 4 of the joint replacement 5 is in one place and a processing device the former 13, the walker 9a, 9f, if necessary, a diffusion device 8 and / or the Milling cutter / grinder 7a each with a gripping bracket 12c takes and for processing the
- Joint replacement 5 (such as in CNC machines),
- the carrier 4 or the holder 4a of the carrier is on a mobile pedestal and can be connected to at least one of the o.g. Machining or processing stations are moved up to edit the joint replacement 5.
- Transport processing stations and / or at least one Vorschubvorraum which transports a processing device of the joint replacement 5, a full-circle or 8a rails, a partial circle track 8b, a slide on a track, a linear bearing 18g with pusher or have a pivot bearing 18h with a holder for the carrier or the processing device.
- the base layer 2 and / or the bonding layer 3 may also be present edited at least one of the above ways
- the introduction rod 20 according to claim 10 is mainly for the implantation of the biological
- the anchoring of the bio-joint replacement 5 in the bone bed 21 can secure.
- a holding and Einbring- device according to claim 12 is used for introducing the joint replacement 5 in the joint space.
- a porous support layer 2 is mounted on a porous support 4 with holding device 4a and a porous former 13 with holder 13c and an opening 13a for introducing the cartilage particles 13b with a closure rod 13e (porous means permeable to the liquid or suspension of the mentioned in claim 7 substances 8a).
- the carrier 4 is connected via a second connection 8b to the diffusion device 8 with hydraulic system 9e (ie, a hydraulic pressure generating system), so that it can produce a pressure alternating between the top and bottom of the joint replacement 5 to be formed.
- the pressure refers to the liquid contained in the forming device 6 with the substances 8a used for cell growth and mentioned in claim 7.
- the former 13 is rotated by its holder 13c by the rotary device 14 to rotate the distribution cartilage particles or cells 13b.
- Hydraulic system 9e and pressure chambers 9b are filled with the substances mentioned in claim 7 8a.
- the printing film 9i is porous in this example, so that the pressure Walker 9a also fulfills the function of the diffusion device.
- the walls of the pressure chambers 9b are preferably flexible, so that the pressurized chambers 9bb. enlarge and also put a part of the surface of the joint replacement 5 under pressure, which lies under a non-pressurized chamber 9 bc.
- the pressure chambers 8a of a pressure walker 9a are preferably subdivided as peripheral chambers 9bd in the periphery region and into at least one central chamber 9be (see in this regard also FIG. 4).
- FIG. 3 shows the longitudinal section of an example of a pressure Walker 9a with the pressure chambers 9b, the Zulufu- 9c to the pressure chambers 9b, a hydraulic system 9e (i.e., a hydraulic pressure generating system).
- the device otherwise corresponds to that in FIG. 3.
- FIG. 9a shows the cross section of an example of a pressure walker 9a with a single pressure chamber 9b of Walkers 9a, the inlet 9c to the pressure chamber 9b and a system 9d, which generates pneumatic pressure.
- the promotion of diffusion takes place here via a thick, spongy printing film 9i, which sucks when the pressure drops and promotes the diffusion in the joint replacement 5 in pressure-increasing.
- the connection 8b takes place via a groove 8c on the peripheral edge of the printing film 9i.
- FIG. 9f shows an example of a tray Walkers 9f and a moving device 12 with rotating device 14 in accordance with the hinge axis 15 with a linear bearing with pusher 18g, with which the holder 12d of the ball-bearing
- the walking shell 9 g is fixedly attached to the forming device in this example, the carrier 4 is held by the pressure of the moving device 12 and is supported by possible turning by lateral extensions which are produced during the compression of the delivery layer 10 or of the former " 13 As a result, the carrier 4 has the properties and the function of the fulling 9g and vice versa, the fulling 9g those of the carrier 4.
- the setting of the pressure is preferably via a pre-pressure In the area of the contact point 9h, the thick, sponge-like delivery layer 10 or the former 13 is compressed on the joint replacement 5, which promotes diffusion
- the supply system 8d for substances 8a supplies the Device via the terminals 8b with those used for cell growth and genan in claim 7 nth substances.
- the delivery layer 10 can also be a shaping device 13.
- FIG. 1 shows an example of a moving device 12 with a milling / grinding device 7 with a rotating device 14 and a milling depth bracket 12b, which are mounted on the sliding carriage 18c of an approximately semicircular part-circle track 18b.
- This is mounted on two Gleitschlit- 20 th 18 c of a full circle track rail 18 a, wherein the planes of the tracks are perpendicular to each other and the circular center of both tracks with the Kugelzentrurh 18 of the ball portion of the joint replacement 5 and the surface of the support 4 matches.
- the milling cutter grinder 7a is aligned with the contact point or milling grinding point 9h:
- FIG. 1 shows a longitudinal section through an example of a moving device 12 with a Walker 9 with Walkschale 9g and a form-holding bracket 12a which are mounted on the arm of a pivot bearing 18h, the axial direction through the ball center 18 of the spherical portion of the joint replacement 5 and the surface of the support.
- the carrier 4 is on a rotating device
- the axes of the pivot bearing 18h and the rotary device 14 are perpendicular to each other.
- the walking bowl 9g is aligned with the contact point 9h.
- the pivot drive of the axis of the pivot bearing 18h and the rotation guide are components of the movement device 12 and its control device 1 1.
- the fulling 9g has here approximately the shape of a hemisphere, since the to be walked
- the walking bowl 9g consists of a hollow sphere.
- the pressure of the movement device 12 is transmitted from a power transmission rod 18k without mutual coupling connection via a sliding surface 18i on the Walkschale 9g (see in this respect also claim 4).
- FIG. 12 shows another example of power transmission without mutual coupling connection through a power transmission rod supporting a trackball 18d which, in turn, transfers pressure to the walking cup 9g.
- FIG. 12 shows another example of power transmission without mutual coupling connection through a power transmission rod which supports a wheel 18f which, in turn, transfers the pressure to the walking shell 9g.
- FIG. 12 shows another example of power transmission without mutual coupling connection by a power transmission rod having a wheel 18f with caster, i. at a distance between the track point (the piercing point of the steering axis of rotation through the surface) and the Radaufstandspünkt a wheel superimposed, which transfers the pressure on the walking bowl 9g rolling.
- FIG. 12 shows another example of power transmission without mutual coupling connection through a power transmission rod supporting a ball-bearing ring gear 18e which transfers pressure to the walking shell 9g.
- FIG. 1 shows an example of the complete biological joint replacement in the form of a prosthetic hip replacement of the hip joint in a plan view of a horizontal section from above:
- the femoral head 31 and the acetabulum 32 (each with its milled bone bed 21 prepared for the joint replacement 5 are provided with the biological joint replacement 5. It consists of cartilage layer 1, base layer 2, bonding layer 3. For better fixation on the bony substrate 21, two pins are used 28 and a hole 22 attached to the support layer 2, wherein a bolt 23c with wedge 23d fixed the joint replacement in the bone bed 21 and additionally wedge-shaped, the edge region circumferential projections 29 fix the joint replacement 5.
- the femoral head joint replacement 5 has a receptacle 19 in the support layer 2, in which a delivery rod 20 is mounted, which was used for retraction or pressing and now serves for fixation on the bony substrate 21. In this example, this is done by annular projections 29 on the insertion rod 20, which was cut off after being pulled or pressed on the bone surface opposite the joint.
- FIG. 24 shows an example of a holding and insertion device 24 with joint replacement holder 24a, stem 24b, handle (24c).
- a beaded edge 25a which is part of the elastic edge 26d of the suction cup 26.
- a tilting device 27 or pivot bearing 27 facilitate or enable only the introduction of the joint replacement 5 in the joint space.
- a swivel handle for the operation of the pivot bearing is shown.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Transplantation (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Cell Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Zoology (AREA)
- Botany (AREA)
- Dermatology (AREA)
- Epidemiology (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
- Rheumatology (AREA)
- Physical Education & Sports Medicine (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012001754.4T DE112012001754A5 (de) | 2011-04-29 | 2012-04-17 | Biologischer implantierbarer Gelenkersatz |
EP12742086.7A EP2701634A2 (de) | 2011-04-29 | 2012-04-17 | Biologischer implantierbarer gelenkersatz |
US14/066,051 US20140188229A1 (en) | 2011-04-29 | 2013-10-29 | Implantable biological joint replacement |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011018365A DE102011018365A1 (de) | 2011-04-20 | 2011-04-20 | Biologischer, implantierbarer Gelenkersatz |
DE102011018365.5 | 2011-04-20 | ||
DE102011100073.2 | 2011-04-29 | ||
DE102011100073A DE102011100073A1 (de) | 2011-04-20 | 2011-04-29 | Biologischer, implantierbarer Gelenkersatz |
DE102011103457A DE102011103457A1 (de) | 2011-04-20 | 2011-06-03 | Bildungsvorrichtung zur Herstellung eines biologischen, implantierbaren Gelenkersatzes |
DE102011103457.2 | 2011-06-03 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/066,051 Continuation-In-Part US20140188229A1 (en) | 2011-04-29 | 2013-10-29 | Implantable biological joint replacement |
Publications (3)
Publication Number | Publication Date |
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WO2012103881A2 true WO2012103881A2 (de) | 2012-08-09 |
WO2012103881A3 WO2012103881A3 (de) | 2013-02-28 |
WO2012103881A4 WO2012103881A4 (de) | 2013-05-02 |
Family
ID=46603158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE2012/000415 WO2012103881A2 (de) | 2011-04-20 | 2012-04-17 | Biologischer implantierbarer gelenkersatz |
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DE (3) | DE102011018365A1 (de) |
WO (1) | WO2012103881A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11918475B2 (en) | 2021-03-31 | 2024-03-05 | DePuy Synthes Products, Inc. | Modular acetabular surgical implant assembly |
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- 2011-04-29 DE DE102011100073A patent/DE102011100073A1/de not_active Withdrawn
- 2011-06-03 DE DE102011103457A patent/DE102011103457A1/de not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
WO2012103881A3 (de) | 2013-02-28 |
DE102011103457A1 (de) | 2012-12-06 |
WO2012103881A4 (de) | 2013-05-02 |
DE102011018365A1 (de) | 2012-10-25 |
DE102011100073A1 (de) | 2012-10-31 |
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