EP1761217A1 - Appareil pour mettre en place ou enlever des articulations ou des articulations a rotule - Google Patents

Appareil pour mettre en place ou enlever des articulations ou des articulations a rotule

Info

Publication number
EP1761217A1
EP1761217A1 EP05754311A EP05754311A EP1761217A1 EP 1761217 A1 EP1761217 A1 EP 1761217A1 EP 05754311 A EP05754311 A EP 05754311A EP 05754311 A EP05754311 A EP 05754311A EP 1761217 A1 EP1761217 A1 EP 1761217A1
Authority
EP
European Patent Office
Prior art keywords
joint
socket
holder
connecting element
handle
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.)
Withdrawn
Application number
EP05754311A
Other languages
German (de)
English (en)
Inventor
Lukas Zumsteg
Walter Moser
Thomas Kilchenmann
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.)
Smith and Nephew Orthopaedics AG
Original Assignee
Plus Orthopedics AG
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 Plus Orthopedics AG filed Critical Plus Orthopedics AG
Publication of EP1761217A1 publication Critical patent/EP1761217A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A61B2034/2046—Tracking techniques
    • A61B2034/2051—Electromagnetic tracking systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A61B2034/2046—Tracking techniques
    • A61B2034/2055—Optical tracking systems
    • 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
    • A61F2/4657—Measuring instruments used for implanting 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30159—Concave polygonal shapes
    • A61F2002/30166—H-shaped or I-shaped
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30484—Mechanically expandable devices located on the first prosthetic part for locking into or onto the second prosthetic part
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30617—Visible markings for adjusting, locating or measuring
    • 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
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • 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
    • A61F2002/4635—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using minimally invasive surgery
    • 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
    • A61F2002/4681—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor by applying mechanical shocks, e.g. by hammering
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0097—Visible markings, e.g. indicia

Definitions

  • the invention relates to a device for setting or removing acetabular cups according to the preamble of claim 1, for setting or removing joints according to the preamble of claim 2, and a position determining device for detecting the position of an acetabular cup of an artificial joint - 5 or the position of an artificial joint according to claim 22.
  • Joint pans which are to be cemented in or on a recipient's bone, usually consist of a metallic shell for anchoring in or on the bone and a sliding insert as a counterpart to a complementary, for many 10 spherical joint shaft.
  • a known method of anchoring uncemented implanted acetabular cups is to clamp them in a bone bearing that is specifically prepared with undersize compared to the implant.
  • This method is the most widely used type of untied anchoring of acetabular implants. With regard to the frequency of arrival. Only then does the metallic cup shell be fixed by bone screws that have to be set separately.
  • Another type of uncemented anchoring are 20 - screw cups, in which the fixation is carried out by a large thread on the outside of the shell, which is screwed into the bone.
  • fixation by means of separate bone screws requires corresponding holes in the implant wall, through which the screws can be placed in suitable regions of the pelvis, for example in a pan roof.
  • the placement of the screws requires accessibility at different angles and a good view of the operating field.
  • the well-known screw pans usually have a coarse, sharp-edged, self-tapping external thread.
  • the insertion of the implant accordingly requires a body opening which must be significantly larger than the implant in order to avoid injuries to the surrounding soft tissue structures due to the sharp-edged, self-tapping thread.
  • the method of jamming an acetabular cup or a joint is referred to as a press-fit anchoring and is particularly suitable for implantation through small body openings, since the corresponding implants have no protruding, sharp-anchored anchoring elements, as is the case, for example, with the screw cups explained above , Furthermore, when using this method, no additional work space is required for the insertion of (separate) bone screws.
  • joint replacement operations are carried out through body openings which, after the representation and preparation of the parts of the joint to be operated, provide a safe opening
  • Minimally invasive joint implantations are highly desirable because they offer several advantages over conventional operations.
  • the lower soft tissue traumatization means shorter wound healing times and thus faster, less painful rehabilitation of the patient.
  • a smaller number of functionally important structures is influenced by the operation, which has a positive effect on the functionality of the joint supplied with implants.
  • Such operations also offer the patient a cosmetic advantage, since a significantly smaller scar is created.
  • the pressfit cups are implanted in conventional non-minimally invasive operations using specific impaction instruments or devices, which enable safe implantation while checking the orientation of the cup.
  • Body opening can be implanted.
  • implantations are also carried out through two different body openings, which, however, entails an increased risk in the positioning of the individual components, since both components of a joint, that is to say the joint socket and the joint itself, must be positioned exactly independently of one another.
  • an instrument that allows manipulations around soft tissue structures, that is to say bypassing certain soft tissue structures is particularly desirable for an operation of both joint parts through a body opening that is reduced in size.
  • the implantation devices for the socket and the joint are of particular importance, although it should be noted that no instruments suitable for carrying out corresponding operations in a minimally invasive manner are known.
  • a device in particular, however, a system in the form of a position-determining and navigation device for setting or removing joint pans, in particular pans, which are held in or on the recipient's bone by means of a press fit (so-called press fit - pans), and also a device or system for setting or removing artificial ones Specify joints, in particular hip stems, which ensure that the surgeon can see the surgical field as well as possible
  • a connecting element which is arranged between a handle and a joint socket receiving or mounting, comprises an arcuate section in the direction of its longitudinal extension.
  • the connecting element comprises a T, double T, I or a rectangular profile.
  • the dimensions of the cross section of the profile of the connecting element preferably vary in the direction of its longitudinal extent, with which the rigidity of the device can be further improved.
  • the device is extremely stable at places of high load, i.e. it has a large cross-section, while material can be saved in places with low loads and / or places that would restrict the surgeon's field of vision too much, which, as already mentioned above, additionally leads to a low (inert) mass of the device ,
  • the connecting element has points of reduced material accumulation and / or points made of a material that is not the same Corresponds to material from which the essential part of the connecting piece is made.
  • the connecting element can have recesses, for example, in which struts can also be attached, or it can also have regions that are made of another material, for example plastic.
  • the joint socket holder preferably has a stop corresponding to the peripheral edge of the socket implant.
  • the stop is either integrally connected to the connecting element, or detachably attached to the end of the joint socket to be implanted, in particular screw-connected. This ensures an optimal transfer of force to the cup implant.
  • a one-piece connection ensures a structurally simple embodiment, while a screw connection enables the device to be taken apart, for example for the purpose of sterilization.
  • the socket holder preferably has one or more spreading element (s) engaging on the inside of the socket, which, by means of a spreading mechanism comprising a cone or a wedge-in-wedge device, extends radially outwards against the inside the pan is or are movable.
  • the expansion elements ensure a secure hold of the joint socket in the device for setting or removing the socket, whereby the expansion elements also ensure that the socket implant cannot twist, in particular not in the equatorial direction. After an implantation has taken place, it is further ensured that the device can be safely removed from the implanted acetabular cup due to the expansion mechanism described in more detail above, without the need to apply forces which loosen the seat of the cup.
  • An analog spreading mechanism is implemented in a preferred embodiment of a device for setting and removing joints, the spreading element or the spreading elements in a device for the treatment of joints naturally acting on the outside of the corresponding joint.
  • the spreading mechanism is preferably connected to an actuating device which comprises a cable.
  • a cable can be easily adapted to the curved section of the device, in particular being flexible with respect to one another
  • the spreading mechanism is also preferably connected to an actuating device, such as a lever, which includes an over-center and alternatively or additionally an eccentric mechanism. This ensures safe actuation of the spreading mechanism, in which it is almost impossible for the spreading mechanism to spread or contract undesirably.
  • the expansion element (s) can be moved into the expansion position against the action of an elastic element, in particular against the action of a spring. This ensures a structurally simple structure.
  • the elastic element or the spring exert a force preferably in the radial direction, the spreading elements springing back automatically when the cable is released.
  • the expansion element (s) have projections projecting radially outwards or inwards, in particular web-like or strip-like projections, which in the expansion position have corresponding or complementary radial recesses, in particular with them Equatorially extending grooves on the inside of the socket or on the outside of the joint correspond.
  • This is also a structurally simple and therefore preferred embodiment.
  • the radially outwardly projecting projections are preferably part of an expansion ring separated by a slot.
  • the expansion ring can be expanded radially outwards by a cone which engages an inner circumference and is connected to an actuating device.
  • the expansion ring is preferably arranged on an underside facing the inside of the socket of the stop of the joint socket holder, which is in particular plate-shaped and cooperates with the peripheral edge of the joint socket, and is in particular radially movably mounted relative to the stop.
  • the actuating device preferably has an actuating lever which is rotatably mounted in the vicinity of the handle, the mounting of which is eccentric relative to the connection of the cable to the actuating lever, so that the connection of the cable is relative to the mounting of the actuating lever in two stable over-center positions, i.e. in a release position and in one Spread position, can be brought.
  • the actuating lever can preferably be brought into a position parallel to the connecting element in the spread position of the joint socket or joint holder and can be fixed in this position by means of a latching mechanism.
  • the latching mechanism assigned to the actuating lever comprises a notch formed in the actuating lever.
  • the invention also encompasses the basic idea of using a device according to the invention as part of a positioning or navigation device. This ensures that the acetabular cup, in particular the acetabular cup and the joint, in particular the hip shaft, is inserted securely and precisely into the recipient bone. Furthermore, navigating in the patient is of course significantly better when removing a joint / an acetabular cup and in particular in minimally invasive operations in comparison to conventional surgical techniques.
  • At least one transmitter is assigned to a device according to the invention in a preferred embodiment, which can be detected, in particular contactlessly, by an associated measured value recording system.
  • the position of the device can be easily detected, which makes navigation easier when inserting or removing a socket implant or an artificial joint.
  • At least some of the sensors have optical elements, in particular retro-reflective spheres.
  • Optical elements, and in particular retro-reflecting spheres are easily detectable and ensure that little equipment is required.
  • at least one sensor comprises magnetic and / or electromagnetic elements which have the advantage that there is no need for direct visual contact between an associated measured value recording system and the sensors themselves.
  • At least one transmitter is or are arranged on the handle, thereby ensuring easy detection of the transmitters.
  • the central longitudinal axis of the socket or joint holder is aligned with the central longitudinal axis of the handle. This ensures that when the joint socket or joint or Joint shaft no torque is exerted on this.
  • the basic idea of the invention is the use of such a device for setting or removing, in particular also for turning in an acetabular cup or a hip shaft.
  • the basic idea of the invention includes that the expansion mechanism for holding an articular socket or a joint is actuated by the exertion of a force which changes its direction at least partially in the course of its transfer.
  • the power transmission takes place, for example, in a cable pull which is bent, with which the force changes its direction at least over certain areas of its transmission or its transmission path and nevertheless acts on the expansion element.
  • the basic idea of the invention is that the force exerted on the expansion element and, of course, also on the socket or the joint does not take place in a straight axial direction, but, for example, in an arc shape or the like.
  • the basic idea of the invention includes the use of a device according to the invention for setting or removing a joint socket or a joint as part of a position-determining or navigation device, and of course a corresponding position-determining or navigation device as a system for setting and removing acetabular cups is included in the spirit of the present invention.
  • a position determination device for detecting the position of an acetabular socket of an artificial joint and / or the artificial joint has, according to the invention, a device according to the invention for setting or removing socket joints or joints, as described in more detail above, and means for detecting the position and Alignment of the device and means for evaluating the recorded data. This ensures that a corresponding position-determining device or a navigation device is constructed relatively inexpensively in terms of apparatus. It should be noted that in the context of a position determination or navigation device, a device according to the invention can of course also be detected without an encoder attached to it.
  • the detection of the position of the handle or the connecting element by suitable measures which can be based on ultrasonic waves, for example, and also the detection of the socket holder or parts thereof, for example with the aid of their absorption or emission properties or spectra.
  • the position determining device additionally has a memory for storing the acquired and / or evaluated data and / or for storing reference values and / or specific data with regard to the spatial position of the bone structure of the recipient.
  • a comparison device which compares an actual position of the joint socket or of the joint or joint shaft and a position of a recess or desired position in the recipient's bone provided for this and provides corresponding navigation instructions. The possibility of storing the spatial position of the bone structure of the receiver and additionally or alternatively the comparison device mentioned above ensure safe navigation for the socket.
  • the means for detecting the device comprise means for detecting optical and / or magnetic and / or electromagnetic sensors.
  • optical, magnetic or electromagnetic detection ensures reliable detection of the spatial position with low expenditure on equipment.
  • the means for detecting the device preferably comprise a stereo camera, this ensuring a simply constructed device in the case of optical sensors.
  • FIG. 1 shows a first preferred embodiment of a device according to the invention for setting and removing joint sockets, as well as a joint socket, partly in an exploded view;
  • FIG. 2 shows the preferred embodiment from FIG. 1 in a sectional view
  • FIG. 3 shows an enlarged detail from FIG. 2, which represents an articulated socket holder of the device according to FIGS. 1 and 2, including the held articulated socket;
  • Fig. 6 shows a preferred embodiment of a position determining device according to the invention, the second preferred embodiment of a device according to the invention for setting and removing joint pans.
  • the first preferred embodiment of a device 1 for setting or removing joint sockets comprises a handle 2, a joint socket holder 3 (this is shown holding a joint socket 4 in FIGS. 2 and 3) and a connecting element 5 which is located between the handle 2 and joint sockets Bracket 3 is arranged.
  • the connecting element 5 comprises an arcuate section 6 in the direction of its longitudinal extent.
  • the connecting element 5 has a rectangular profile in the present preferred embodiment, but a T-, double-T- or I-shaped profile would also be conceivable ,
  • the dimensions of the cross section of the profile of the connecting element 5 vary in the direction of its longitudinal extent.
  • the profile of the connecting element 5 is matched to the forces acting on the connecting element 5, so that the cross-section is larger at places of high stress (for example at the point indicated by arrow 8) than at points of lower stress (for example at the point indicated by the arrow) 7 marked place).
  • the connecting element 5 places reduced material accumulation in the form of recesses 9.
  • a connecting element has 5 locations made of a material that does not correspond to the material from which the essential part of the connecting piece 5 is made.
  • a simple implementation of this would be, for example, to fill the recesses 9 with another material, in particular plastic. This results in an even higher stability with a very good sterilizability of the device 1.
  • the socket holder 3 has a stop 11 corresponding to a peripheral edge 10 of the socket 4.
  • the stop 11 is. with the connecting element 5 at the end of the socket facing the socket, releasably fastened by means of a thread 12 with which the stop is provided and by means of a corresponding thread 13 with which the connecting element 5 is provided.
  • the joint socket holder 3 also has, as best seen in FIGS. 4 and 5, spreading elements 14 which engage on the inside of the socket 4 and which, by means of a spreading mechanism comprising an inner cone 15, extend radially outwards against the inside of the joint pan 4 are movable. It should be noted at this point that, as an alternative to a construction with a cone or inner cone 15, a wedge-in-wedge device for moving the expansion elements 14 would also be conceivable.
  • the spreading mechanism is connected to an actuating device which comprises a cable pull 16 (cf. in particular FIGS. 1 to 3).
  • the actuating device further comprises an actuating lever 17 which comprises an over-center mechanism and an eccentric mechanism.
  • the eccentric mechanism is implemented by an eccentric bearing 18 for the connection of the cable 16 (cf. FIG. 1).
  • the lever 17 with a (centrally mounted) bearing ring 19, which is in a complementary bearing eye 20, for the
  • Bearing ring 1 engages, provided.
  • the lever 17 further comprises a central bearing pin 21, which engages with a corresponding (not shown or not shown in the figures) further bearing eye in the (rear) side wall of the connecting element 5.
  • the spreading elements 14 can be moved into their spreading position against the action of an elastic element in the form of a radially acting spring.
  • the spreading elements 14 have radially outwardly projecting projections 23, which are designed like webs or strips and correspond in the spreading position with complementary radial recesses in the form of equatorially extending grooves 24 on the inside of the socket 4.
  • the radially outwardly extending projections 23 are part of an expansion ring 26 which is separated by a slot 25.
  • the expansion ring 26 can be expanded radially outwards by the inner cone 15 which engages the inner circumference thereof and which is connected to the actuating device.
  • the expansion ring 26 is arranged on the underside of the plate-shaped stop 11 of the joint socket holder 3, which is assigned to the inside of the socket and cooperates with the peripheral edge 10 of the socket 4. In the present preferred embodiment, the expansion ring 26 is suspended so that it can move radially relative to the stop 11.
  • the actuating device comprises the actuating lever 17 which is arranged in the vicinity of the handle 2 so as to be rotatably mounted, the bearing of which is eccentric relative to the connection of the cable 16 to the actuating lever 17, so that the connection of the cable 16 relative to the mounting of the actuating lever 17 in two stable over-center positions, ie a release position and a spread position, can be brought.
  • the actuating lever 17 can be brought into a position parallel to the connecting element 5 in the spread position of the joint socket holder 3 and can be fixed in this position by means of a latching mechanism 27 (cf. FIG. 2).
  • the locking mechanism 27 comprises a locking pin 28 which in a notch 29 formed on the actuating lever 17 can be snapped into place.
  • the locking pin 28 is biased in the locking position by an elastic element in the form of a compression spring 30.
  • the scope of the invention naturally also includes a device for setting and removing artificial joints, for example, hip stems.
  • a device for setting and removing artificial joints for example, hip stems.
  • Such a device is constructed analogously to the device for setting or removing joint sockets and only differs in the shape of the holder. While the holder for joint pans has the shape of a joint, the holder for a joint naturally has the shape of a corresponding joint socket. This means that a holder for a joint socket is generally curved outwards, while a holder for a joint encloses the same and is therefore curved inwards.
  • the structure of one of the preferred embodiments or the preferred embodiments of the device for setting joints is analogous to the structure of that device for setting joint sockets.
  • the basic idea of the invention includes the use of a device according to the invention as part of a position determination or navigation device 32. Furthermore, the basic idea of the invention also includes the provision of the device 32 itself, which is shown in FIG. 6.
  • the device 1, which is a component of the device 32 according to the invention, has all the features of the first embodiment described above, with additional devices 31 being attached to the device 1, which are provided by an associated measured value recording system which is part of the position determination or Navigation device 32 is detectable.
  • the sensors 31 are detected without contact. These are in the form of optical elements, namely in the form of retro-reflecting spheres. It should be noted that, alternatively or additionally, magnetic and / or electromagnetic sensors or sensors which have magnetic and / or electromagnetic elements are conceivable. These can be particularly advantageous if the view between a measured value recording system and an encoder is blocked. If there is a clear view, optical elements, in particular in the form of retro-reflecting spheres, represent a simple and inexpensive method for recording measured values. Furthermore, in the present exemplary embodiment, all sensors are arranged on the handle 2 of the device. This ensures easy detectability. It should also be mentioned at this point that a section in the form of a striking plate is formed on the end of the handle facing away from the connecting element Surgeon can hit with a hammer in a targeted manner so that the socket 4 can be brought into its desired position.
  • the central longitudinal axis of the socket holder 3 is aligned with the central longitudinal axis of the handle 2. This ensures that there is no torque on the socket 4 when struck is applied.
  • the device 32 further comprises means for detecting the position and orientation of the device in the form of a stereo camera, which is composed of two IR cameras 33A and 33B, and means for evaluating the recorded data in the form of a computing unit 34.
  • a stereo camera which is composed of two IR cameras 33A and 33B
  • means for evaluating the recorded data in the form of a computing unit 34 For appropriate lighting of the sensors 31 provide two IR illumination sources 35A and 35B.
  • a special evaluation program is implemented in the evaluation means in the form of the computing unit 34, which allows a summary evaluation of the light signals coming from the transmitters 31 in order to create a position data record.
  • the device has a memory for storing the acquired and / or evaluated data and / or for storing reference values and / or specific data with regard to the bone structure of the recipient and the spatial position of the bone structure of the recipient.
  • the socket 4 is brought into its intended position.

Abstract

L'invention concerne un appareil permettant de mettre en place ou d'enlever des rotules (4) d'une articulation, notamment une articulation de la hanche, ainsi qu'un appareil permettant de mettre en place ou d'enlever une articulation artificielle, comprenant une poignée (2), une cavité ou une fixation (3) prévue pour la rotule articulation ou l'articulation, de même qu'un élément de connexion disposé entre la poignée et la cavité ou la fixation prévue pour les rotules ou l'articulation. L'élément de connexion (5) comprend dans le sens de son extension longitudinale, une section courbée (6). L'invention concerne également un système pour mettre en place et enlever des rotules d'articulation ou des articulations, qui se présente sous forme de dispositif de détermination de position et de navigation.
EP05754311A 2004-06-22 2005-05-30 Appareil pour mettre en place ou enlever des articulations ou des articulations a rotule Withdrawn EP1761217A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004030031 2004-06-22
DE102004042183A DE102004042183A1 (de) 2004-06-22 2004-08-31 Gerät zum Setzen oder Entfernen von Gelenken oder Gelenkpfannen
PCT/EP2005/005802 WO2005122970A1 (fr) 2004-06-22 2005-05-30 Appareil pour mettre en place ou enlever des articulations ou des articulations a rotule

Publications (1)

Publication Number Publication Date
EP1761217A1 true EP1761217A1 (fr) 2007-03-14

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EP05754311A Withdrawn EP1761217A1 (fr) 2004-06-22 2005-05-30 Appareil pour mettre en place ou enlever des articulations ou des articulations a rotule

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US (1) US8801724B2 (fr)
EP (1) EP1761217A1 (fr)
DE (1) DE102004042183A1 (fr)
WO (1) WO2005122970A1 (fr)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200690B4 (de) 2002-01-10 2005-03-03 Intraplant Ag Hilfsmittel zur Implantation einer Hüftgelenkendoprothese
US20090088846A1 (en) 2007-04-17 2009-04-02 David Myung Hydrogel arthroplasty device
US8277457B1 (en) 2004-12-09 2012-10-02 Greatbatch Medical S.A. Orthopaedic inserter using a collet mechanism
US7621921B2 (en) * 2006-01-25 2009-11-24 Symmetry Medical, Inc Split thread orthopaedic implant impactor
FR2900328A1 (fr) * 2006-05-01 2007-11-02 Precimed Sa Sa Suisse Porte-prothese pour une chirurgie articulaire avec effraction minimale ayant un filetage interchangeable.
GB0617484D0 (en) * 2006-09-05 2006-10-18 Comis Orthopaedics Ltd Surgical apparatus
FR2909541B1 (fr) * 2006-12-08 2009-07-03 X Nov Systeme prothetique cotyloidien a impaction simplifiee
US20120209396A1 (en) 2008-07-07 2012-08-16 David Myung Orthopedic implants having gradient polymer alloys
US8497023B2 (en) * 2008-08-05 2013-07-30 Biomimedica, Inc. Polyurethane-grafted hydrogels
US8398650B1 (en) 2009-01-27 2013-03-19 Greatbatch Medical S.A. Offset cup impactor with an expandable dome for double mobility implants
DE102010005659A1 (de) * 2010-01-18 2011-07-21 Karl Storz GmbH & Co. KG, 78532 Einbringinstrument zum Einschlagen eines Verblockungselementes
EP2422754B1 (fr) 2010-08-27 2014-11-05 Greatbatch Medical SA Impacteur décalé pour coupelle avec une plaque de saisie pour implants à mobilité double
EP2609154B1 (fr) 2010-08-27 2020-04-22 Hyalex Orthopaedics, Inc. Réseaux de polymère hydrophobe et hydrophile interpénétrant dérivés de polymères hydrophobes et procédés de préparation de ceux-ci
GB201020041D0 (en) 2010-11-25 2011-01-12 Benoist Girard & Cie Prosthetic acetabular cup inserter and impactor
US8585709B2 (en) 2011-01-17 2013-11-19 Greatbatch Medical S.A. Straight cup impactor with lever arm
US9119731B2 (en) 2011-01-17 2015-09-01 Greatbach Medical S.A. Straight cup impactor
EP2561835B1 (fr) 2011-08-26 2016-03-16 Greatbatch Medical SA Impacteur droit de cupules articulaires
EP2572679B1 (fr) * 2011-09-23 2015-07-15 Greatbatch Medical SA Support d'implant céramique
WO2013052105A2 (fr) 2011-10-03 2013-04-11 Biomimedica, Inc. Adhésif polymère destiné à fixer des matériaux souples sur une autre surface
WO2013078284A1 (fr) * 2011-11-21 2013-05-30 Biomimedica, Inc. Systèmes, dispositifs et procédés pour ancrer des implants orthopédiques à l'os
EP2596763B1 (fr) * 2011-11-25 2014-01-08 Waldemar Link GmbH & Co. KG Outil de fixation ou de suppression de composants articulés de rotules artificielles, notamment pour endoprothèses de la hanche
FR2994645B1 (fr) * 2012-08-21 2014-08-22 Rech S Et De Fabrication Serf Soc Et Ancillaire pour l’implantation d’une cupule, notamment d’implant cotyloidien
ES2544274T3 (es) 2012-10-24 2015-08-28 Waldemar Link Gmbh & Co. Kg Soporte para un implante médico
WO2017176905A1 (fr) 2013-12-29 2017-10-12 Behzadi Kambiz Systèmes et procédés de révision de prothèse
US10478318B2 (en) 2013-12-29 2019-11-19 Kambiz Behzadi Prosthesis installation systems and methods
US9220612B2 (en) 2013-12-29 2015-12-29 Kambiz Behzadi Prosthesis positioning systems and methods
US10172722B2 (en) 2013-12-29 2019-01-08 Kambiz Behzadi Prosthesis installation systems and methods
US10245160B2 (en) 2013-12-29 2019-04-02 Kambiz Behzadi Prosthesis installation systems and methods
US10456271B2 (en) 2013-12-29 2019-10-29 Kambiz Behzadi Prosthesis revision systems and methods
US10245162B2 (en) 2013-12-29 2019-04-02 Kambiz Behzadi Prosthesis installation systems and methods
US9168154B2 (en) 2013-12-29 2015-10-27 Kambiz Behzadi Prosthesis installation systems and methods
US20160213492A1 (en) * 2015-01-27 2016-07-28 Trigon International Corporation Impactor adaptor and screw assembly
US11077228B2 (en) 2015-08-10 2021-08-03 Hyalex Orthopaedics, Inc. Interpenetrating polymer networks
FR3066908B1 (fr) * 2017-05-31 2019-07-19 Science Et Medecine Ensemble orthopedique comprenant une cupule et un appareil pour la mise en place de cette cupule dans une cavite anatomique
US10869950B2 (en) 2018-07-17 2020-12-22 Hyalex Orthopaedics, Inc. Ionic polymer compositions
US11612501B2 (en) 2018-10-19 2023-03-28 Tightline Development, LLC. Hip and knee joint stem explant system and methods of using the same
WO2020123899A1 (fr) 2018-12-13 2020-06-18 Paragon 28, Inc. Instruments d'alignement et procédés utilisés lors d'un remplacement total de cheville
AU2019398470A1 (en) 2018-12-13 2021-07-29 Paragon 28, Inc. Distractors having attachable paddles, impaction devices, and methods for use in total ankle replacement
DE102022004645A1 (de) 2022-12-12 2023-03-16 Mercedes-Benz Group AG Anordnung zum Anbinden eines Lenkungsgehäuses an einen Integralträger eines Fahrzeuges

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382570A (en) * 1981-07-01 1983-05-10 Transamerica Delaval Inc. Draw band line support
CH661430A5 (de) 1983-12-12 1987-07-31 Sulzer Ag Hueftgelenkspfanne.
CH663894A5 (de) 1984-07-16 1988-01-29 Sulzer Ag Aus einem inneren pfannenkoerper und einer aussenschale bestehende endoprothese fuer eine hueftgelenkspfanne.
DE4021510A1 (de) * 1990-07-05 1992-01-09 Bosch Gmbh Robert Spannvorrichtung zum festspannen einer schutzhaube am spannhals einer handwerkzeugmaschine
US5098437A (en) * 1991-02-13 1992-03-24 Pfizer Hospital Products Group, Inc. Acetabular cup positioning insert
US5169399A (en) * 1991-10-17 1992-12-08 Boehringer Mannheim Corporation Acetabular cup impactor
US5320625A (en) * 1993-01-21 1994-06-14 Bertin Kim C Apparatus and method for implanting a prosthetic acetabular cup and then testing the stability of the implant
US5540697A (en) * 1993-02-12 1996-07-30 U.S. Medical Products, Inc. Prosthetic socket installation apparatus and method
DE4337936A1 (de) 1993-11-06 1995-05-11 Cerasiv Gmbh Sphärische Hüftgelenkpfanne
US5474560A (en) * 1994-09-26 1995-12-12 Zimmer, Inc. Prosthetic acetabular cup inserter
US5571111A (en) * 1995-05-01 1996-11-05 Aboczky; Robert I. Instrument for orienting, inserting and impacting an acetabular cup prosthesis including prosthesis retaining head arrangement
US5683399A (en) 1995-12-01 1997-11-04 Stelkast Incorporated Acetabular cup insertion tool
DE19723620A1 (de) * 1997-06-05 1998-12-10 Laghaollah Dr Med Elhami Künstliche Hüftgelenkpfanne
DE19860444C2 (de) * 1998-12-28 2001-03-29 Storz Karl Gmbh & Co Kg Handgriff für ein medizinisches Rohrschaftinstrument
US6991656B2 (en) * 2000-04-26 2006-01-31 Dana Mears Method and apparatus for performing a minimally invasive total hip arthroplasty
US7634306B2 (en) * 2002-02-13 2009-12-15 Kinamed, Inc. Non-image, computer assisted navigation system for joint replacement surgery with modular implant system
DE10306793A1 (de) * 2002-05-21 2003-12-04 Plus Endoprothetik Ag Rotkreuz Anordnung und Verfahren zur intraoperativen Festlegung der Lage eines Gelenkersatzimplantats
US20030229356A1 (en) * 2002-06-10 2003-12-11 Donald Dye Curved acetabular shell impaction instrument and method of use
NZ520410A (en) * 2002-07-25 2005-08-26 Enztec Ltd An appliance having a workpiece engageable head
US6760985B2 (en) * 2002-09-03 2004-07-13 David A. Wilson Craft hoop clamping method and apparatus
US7004946B2 (en) * 2002-10-30 2006-02-28 Symmetry Medical, Inc. Acetabular cup impactor
FR2850010B1 (fr) * 2003-01-17 2005-12-02 Tornier Sa Ancillaire de pose d'un cotyle prothetique pour une prothese de hanche
US7037310B2 (en) * 2003-10-21 2006-05-02 Wright Medical Technology Inc Acetabular impactor
DE10360390B4 (de) 2003-12-22 2006-03-23 Martin Imhof Gelenkpfanne für eine Hüftendoprothese
GB0405059D0 (en) * 2004-03-05 2004-04-07 Benoist Girard Sas Prosthetic acetabular cup inserter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005122970A1 *

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Publication number Publication date
US8801724B2 (en) 2014-08-12
US20070270783A1 (en) 2007-11-22
DE102004042183A1 (de) 2006-01-19
WO2005122970A1 (fr) 2005-12-29

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