WO2020183129A1 - Dispositif d'impacteur - Google Patents

Dispositif d'impacteur Download PDF

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Publication number
WO2020183129A1
WO2020183129A1 PCT/GB2020/050507 GB2020050507W WO2020183129A1 WO 2020183129 A1 WO2020183129 A1 WO 2020183129A1 GB 2020050507 W GB2020050507 W GB 2020050507W WO 2020183129 A1 WO2020183129 A1 WO 2020183129A1
Authority
WO
WIPO (PCT)
Prior art keywords
force
deformable member
lattice structure
determined level
target object
Prior art date
Application number
PCT/GB2020/050507
Other languages
English (en)
Inventor
Ruben DOYLE
Shaaz GHOUSE
Jonathan JEFFERS
Original Assignee
Imperial College Innovations Limited
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 Imperial College Innovations Limited filed Critical Imperial College Innovations Limited
Priority to GB2114478.7A priority Critical patent/GB2596728A/en
Publication of WO2020183129A1 publication Critical patent/WO2020183129A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
    • 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
    • A61F2/4637—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for connecting or disconnecting two parts of a prosthesis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D1/00—Hand hammers; Hammer heads of special shape or materials
    • B25D1/12—Hand hammers; Hammer heads of special shape or materials having shock-absorbing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
    • A61B2017/922—Devices for impaction, impact element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/032—Automatic limiting or abutting means, e.g. for safety pressure limiting, e.g. hydrostatic
    • 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
    • A61F2/4607—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 hip 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
    • 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
    • A61F2002/30561—Special structural features of bone or joint prostheses not otherwise provided for breakable or frangible
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/105—Exchangeable tool components
    • B25D2250/111—Bits, i.e. inserts or attachments for hammer, chisel, pick
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing

Definitions

  • This invention relates to a device for limiting a force applied by an impactor.
  • Figure 1 illustrates a modular replacement hip joint and tools for its assembly
  • Figures 3A and 3B illustrate perspective and cross-sectional views of an embodiment of the device having a deformable member within an outer shell
  • the lattice structure 30 is shown between the first part 12 and the second part 20, it would be apparent this is not essential.
  • the lattice structure 30 may be located elsewhere in the load path between one or more further intermediary components (not shown).
  • the device may comprise a lattice structure 30 having a visual indicator, such that when the lattice structure is struck with sufficient force, it deforms and the visual indicator indicates to the surgeon that the desired force has been transmitted to the replacement joint components, for example by having upper and lower markers that move closer together upon compaction of the lattice.
  • Figures 4C and 4D illustrate an exemplary lattice structure 30 before and after being struck respectively.
  • the head portion 54 includes a first part 56 connected to a second part 58 by a slideable connection 60, and a deformable member, such as a lattice structure 30 or foam structure, within the first part 56.
  • the first part 56 of the hammer 50 functions in a similar manner to the first part 12 of the device 10, while the second part 58 of the hammer 50 functions in a similar manner to the second part 20 of the device 10.
  • the lattice structure 30 used in the hammer 50 may be the same as that used in the device 10.
  • the hammer 50 of the present description does away with the need for a separate device 10, as the force- limiting means are contained within the head portion 54. This provides the surgeon with greater freedom when striking the femoral head 3, as they do not also need to hold the separate device 10 against the femoral head 3.
  • Figure 10 illustrates an exemplary force-limited hammer and force-limited impactor corresponding to Figure 9, but illustrates the alternative locations for the force- limiting device in use when assembling a modular hip joint in vivo.
  • an acetabular cup 74 is being secured to the pelvis of a patient.
  • the impactor 7 is shown having a first lattice structure 30C secured thereto, and the hammer 70 is shown having a second lattice structure 30D secured thereto. While both lattice structure 30C, 30D are shown together, it would be apparent this was not essential, and either of lattice structure 30C or 30D may be omitted.

Abstract

L'invention porte sur un dispositif qui sert à limiter une force appliquée par un outil sur un objet cible, l'adaptateur comprenant une première partie, et un élément déformable agencé pour entrer en contact avec la première partie et se déformer lors de l'application de la force par l'outil sur dispositif. La première partie et l'élément déformable sont agencés pour définir un trajet de charge entre des premier et second côtés du dispositif. L'élément déformable est conçu pour se déformer lorsque la force passant par le trajet de charge est supérieure à un premier niveau prédéterminé, ce qui permet d'absorber une première quantité de la force, de façon à transmettre une force résultante à l'objet cible qui n'est pas supérieure au premier niveau prédéterminé.
PCT/GB2020/050507 2019-03-11 2020-03-03 Dispositif d'impacteur WO2020183129A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2114478.7A GB2596728A (en) 2019-03-11 2020-03-03 Impactor device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1903271.3A GB201903271D0 (en) 2019-03-11 2019-03-11 Impactor device
GB1903271.3 2019-03-11

Publications (1)

Publication Number Publication Date
WO2020183129A1 true WO2020183129A1 (fr) 2020-09-17

Family

ID=66380522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2020/050507 WO2020183129A1 (fr) 2019-03-11 2020-03-03 Dispositif d'impacteur

Country Status (2)

Country Link
GB (2) GB201903271D0 (fr)
WO (1) WO2020183129A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110264009A1 (en) * 2008-02-29 2011-10-27 Silesco Pty Ltd. Orthopaedic Safety System
US20150366601A1 (en) * 2014-06-19 2015-12-24 Biomet Manufacturing, Llc Impact load-limiting surgical impactor
DE102017009835B3 (de) * 2017-10-23 2019-02-14 Silony Medical International AG Hammerelement mit Impulsbeschränkung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110264009A1 (en) * 2008-02-29 2011-10-27 Silesco Pty Ltd. Orthopaedic Safety System
US20150366601A1 (en) * 2014-06-19 2015-12-24 Biomet Manufacturing, Llc Impact load-limiting surgical impactor
DE102017009835B3 (de) * 2017-10-23 2019-02-14 Silony Medical International AG Hammerelement mit Impulsbeschränkung

Also Published As

Publication number Publication date
GB2596728A (en) 2022-01-05
GB201903271D0 (en) 2019-04-24
GB202114478D0 (en) 2021-11-24

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