WO2017019329A1 - Ball and cup impactors for implanting a hip prosthesis - Google Patents
Ball and cup impactors for implanting a hip prosthesis Download PDFInfo
- Publication number
- WO2017019329A1 WO2017019329A1 PCT/US2016/042441 US2016042441W WO2017019329A1 WO 2017019329 A1 WO2017019329 A1 WO 2017019329A1 US 2016042441 W US2016042441 W US 2016042441W WO 2017019329 A1 WO2017019329 A1 WO 2017019329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cup
- acetabular
- stem
- distal end
- femoral
- Prior art date
Links
- 210000000588 acetabulum Anatomy 0.000 claims abstract description 15
- 239000007943 implant Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000003116 impacting effect Effects 0.000 claims description 5
- 210000003813 thumb Anatomy 0.000 claims description 4
- 210000000689 upper leg Anatomy 0.000 claims 1
- 210000001624 hip Anatomy 0.000 abstract description 10
- 0 C*1C[C@](C)*C1 Chemical compound C*1C[C@](C)*C1 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
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
- 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
- A61F2/32—Joints for the hip
-
- 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
-
- 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
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- 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
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/348—Additional features
- A61F2002/3483—Additional features having a convex shape, e.g. hemispherical heads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3611—Heads or epiphyseal parts of femur
- A61F2002/3615—Heads or epiphyseal parts of femur having a concave shape, e.g. hemispherical cups
-
- 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
- A61F2002/4625—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 with relative movement between parts of the instrument during use
- A61F2002/4627—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 with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
-
- 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
Definitions
- the present invention relates to surgical instruments used in connection with implanting a reverse hip prosthesis in a patient. More particularly, the invention has to do with impactors for implanting an acetabular cup, an acetabular ball and a femoral cup.
- a reverse hip prosthesis is described in U.S. Patents Nos. 8,313,531 B2 and 8,540,779 B2.
- the prosthesis and a revision surgery method also are described in U.S. Patent No. 8,992,627 B2.
- the disclosures of these three patents are incorporated herein in their entireties by reference.
- the acetabular cup is affixed in the acetabulum by impacting it therein and then, if needed, affixing it further using screws.
- the acetabular ball is affixed by means of a Morse taper to a stem extending from the bottom of the concave surface of the acetabular cup and the femoral cup is affixed to the femoral implant (or femoral stem) by means of a Morse Taper.
- the surgical instruments of the invention enable a surgeon to impact each of these components of the prosthesis with optimal placement of the acetabular cup and secure affixation of the acetabular ball and the femoral cup.
- FIG. 1 is a perspective view of the acetabular cup impactor assembly of the invention.
- FIG. 2 is an elevation view of the acetabular cup impactor assembly.
- FIG. 3 is a section view of Fig. 2 illustrating a partial acetabular bone element.
- Fig. 4 is an exploded view of the acetabular cup impactor assembly.
- FIG. 5 is an elevation view of an acetabular cup handle for the acetabular cup impactor assembly.
- FIG. 6 is an elevation view of an inner shaft for the acetabular cup impactor assembly.
- Fig. 7 is an elevation view of an inclination-anteversion guide rod for the acetabular cup impactor assembly.
- Fig. 8 is an elevation view of a collet for the acetabular cup impactor assembly.
- Fig. 9 is an elevation view of a universal handle for the acetabular ball impactor assembly and the femoral cup impactor assembly.
- FIG. 10 is a perspective view of an acetabular ball impactor assembly, acetabular ball and acetabular cup.
- Fig. 11 is an elevation view of Fig. 10.
- Fig. 12 is a section view of Fig. 11 with an added acetabular bone element.
- Fig. 13 is an elevation view of an acetabular ball impactor.
- Fig. 13A is a section view of the acetabular ball impactor of Fig.
- Fig. 14 is an elevation view of a femoral cup impactor assembly.
- FIG. 5 is a perspective view of a femoral cup impactor.
- Fig. 16 is a side elevation view of Fig. 15.
- Fig. 17 is a top elevation view of Fig. 16.
- Fig. 18 is a bottom elevation view of Fig. 16.
- FIG. 19 is an elevation view of a femoral cup impactor assembly and a femoral cup positioned in a femoral implant, the femoral implant being illustrated in section.
- Fig. 20 is a section view of Fig. 19.
- the impactors of the present invention are used to implant in a patient three elements of a reverse hip prosthesis.
- the elements are the acetabular cup, the acetabular ball and the femoral cup.
- acetabular cup impactor assembly 1 illustrated in Figs. 1-4.
- Elements of acetabular cup impactor assembly 1 are illustrated in Figs. 5-8.
- Figs. 1-3 illustrate acetabular cup 2 in relation to the assembly 1 and Fig. 3 includes a portion of the acetabulum 3.
- the acetabular cup impactor assembly 1 is comprised of acetabular cup handle 4, having a channel extending annularly along the length thereof, the channel being open at the proximal and distal ends of the handle 4, inner shaft 5 having a knob 6 at the proximal end thereof, inclination-anteversion guide rods 7 and collet 8. Guide rods 7 are threaded at their distal ends.
- the acetabular cup handle 4 has a handle shaft 9 and an inclination-anteversion guide collar 10 rotatably mounted on handle shaft 9.
- Inclination-anteversion guide collar 10 sometimes referred to herein as rotatable guide 10 has threaded holes (See Fig. 4.) designated as anteversion holes 5 and inclination hole 16.
- a rod 7 is threaded into hole 16 and one of holes 15, depending on whether the right or left hip is being replaced. Thumb screw 11 is tightened to prevent rotation of guide collar 10 when a rod 7 is optimally positioned during surgery.
- Handle element 12 is affixed proximally on shaft 9 and sleeve 13 is affixed to the distal end of shaft 9.
- the sleeve 13 has a tapered annular inner portion, the taper narrowing in the proximal direction, the tapered annular inner portion of the sleeve 13 being sized to cause a distal end of the collet 8 to contract when the collet 8 moves into the sleeve 13 in a proximal direction.
- Acetabular cup 2 has a stem 14 projecting from the bottom of the concave surface thereof.
- the size of the collet 8 refers to an annular inner portion thereof which is sized to releasably grip a proximal portion of the stem 14. The collet 8 grips the stem 14 when the collet 8 is contracted and releases the stem 14 when the collet 8 is open, i.e., not contracted.
- the acetabulum 3 is prepared to receive an appropriately sized acetabular cup 2 and a collet 8 sized for the cup is selected.
- Inner shaft 5 is inserted into the distal end of acetabular cup handle 4 and the collet 8 is then attached to the distal end of inner shaft 5.
- the collet 8 is then pushed over the stem 14 of acetabular cup 2 and the collet 8 is pulled into sleeve 13 so that the collet 8 firmly grips the stem 14. This causes shaft 5 to move proximally leaving a space between knob 6 and the proximal end of handle element 12.
- An inclination-anteversion guide rod 7 is threaded into hole 6 of inclination-anteversion guide collar 10, another inclination-anteversion guide rod 7 is threaded into a hole 15 (see Fig. 4), and the acetabular cup 2 is placed in acetabulum 3. Then the screw holes in cup 2 are aligned properly in the acetabulum for eventual fixation of the cup to the acetabulum using screws. The inclination-anteversion guide collar 10 is then rotated until the rods 7 are properly positioned and thumb screw 11 then is tightened. It should be noted that the guide rods are set at a 45 degree angle relative to the shaft 9 and at a 20 degree angle relative to one another.
- the surgeon sets the inclination using the rod threaded into hole 16 by keeping the rod parallel to the floor and pointing it toward the shoulder of the patient. If a left hip is being replaced it is pointed at the left shoulder and if a right hip is being replaced it is pointed at the right shoulder.
- the surgeon sets the anteversion using the rod 7 threaded into a hole 15. Either hole 15 is used, depending on whether the right hip or left hip is being replaced as will be apparent to those having ordinary skill in the art based on the disclosures herein.
- the anteversion rod creates 20 degrees of anteversion with the inclination rod by orienting the anteversion rod toward the same shoulder.
- the rods are used in this manner with a posterior surgical approach and this properly sets the orientation of the cup 2 at a compound angle of 45 degrees of inclination and 20 degrees of anteversion.
- the assembly is maintained in position by holding handle element 12 as the proximal end of knob 6 is struck with a hammer thereby impacting the acetabular cup in the acetabulum. Assembly 1 is then removed from the operating site.
- FIG. 13 An acetabular ball impactor assembly is illustrated in Figs 10-12 and the acetabular ball impactor 20 is illustrated in elevation in Fig. 13.
- the acetabular ball impactor assembly 13 is comprised of acetabular ball impactor 20 and universal handle 40. (See also Fig. 9).
- the universal handle 40 is comprised of shaft 41 having a threaded portion 42 at its distal end and a handle element 43 at its proximal end.
- the acetabular ball impactor 20 has a proximal end and a distal end. As illustrated in Fig. 13A, the proximal end of acetabular ball impactor 20 has threads 22 and the distal end has a concave surface portion 23. The concave surface portion being in the shape of a section of a sphere.
- the threaded portion 42 is threaded into the threads 22 of the acetabular ball impactor 20.
- Acetabular ball impactor 20 is made in sizes compatible with differently sized acetabular balls 21. When a ball 21 is selected, it is placed over stem 14 of acetabular cup 2. The appropriately sized acetabular ball impactor 20 is threaded onto the universal handle 40 and the concave surface of acetabular ball impactor 20 is placed over the ball, allowing the ball to be received therein.
- sizing in this context means the concave surface portion of the acetabular ball impactor is sized to receive the acetabular ball.
- the concave surface has the shape of a section of a sphere and a size the same as or approximately the same as the spherical size of the acetabular ball to be received therein.
- the proximal end of handle element 43 is struck with a hammer to cause the acetabular ball 21 to be firmly affixed to stem 14 by means of the Morse taper.
- a femoral cup impactor 30 is illustrated in Figs. 15-18. It is comprised of a convex surface portion, referred to herein as impactor tip 31 , at its distal end and a threaded portion 32 at its proximal end.
- the convex surface portion is in the shape of a sphere.
- Threaded portion 32 is used to affix the impactor to universal handle 40.
- Figs. 19 and 20 further illustrate the femoral cup impactor, a femoral cup 50 and a femoral implant 51.
- the femoral cup 50 has a stem 52 which is sized to fit in a Morse taper relationship in recess 53 of femoral stem 51.
- Femoral cup impactor 30 is made in sizes compatible with differently sized femoral cups 50.
- the femoral cup 50 has a concave surface portion in the shape of a section of a sphere sized to articulate on acetabular ball 21. When a femoral cup 50 is selected, the stem 52 is placed in recess 53.
- the appropriately sized acetabular cup impactor is threaded onto the universal handle 40 and the convex impactor tip 31 is placed into the concave portion of femoral cup 50.
- sizing in this context means the convex surface of the femoral cup impactor is sized to be received in the concave surface portion of the femoral cup.
- the convex surface has the shape of a section of a sphere and a size the same as or approximately the same as the concave surface portion of the femoral cup.
- the convex surface has the shape of a section of a sphere and a size the same as or approximately the same as the concave surface portion of the femoral cup.
- the proximal end of handle element 43 is struck with a hammer to cause the femoral cup 50 to be firmly affixed to femoral implant 51 by means of the Morse taper.
- the surgical instruments of the invention may comprise a portion of surgical kits.
- the kits may contain one or more than one of the surgical instruments of the invention along with other surgical instruments and/or implants.
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Physical Education & Sports Medicine (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Priority Applications (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020187003678A KR102622247B1 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting hip prostheses |
EP22212663.3A EP4183374A1 (en) | 2015-07-27 | 2016-07-15 | Femoral cup impactor assembly |
KR1020237007087A KR102622255B1 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
EP22212659.1A EP4166095A1 (en) | 2015-07-27 | 2016-07-15 | Acetabular ball impactor assembly |
JP2018504948A JP6795854B2 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for hip prosthesis transplants |
KR1020237007085A KR102622251B1 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
NZ739115A NZ739115B2 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
BR112018001625-0A BR112018001625B1 (en) | 2015-07-27 | 2016-07-15 | SURGICAL INSTRUMENT, AND, KIT |
US15/742,252 US10709580B2 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
CA2992584A CA2992584C (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
CN201680044079.5A CN108135586B (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactor for implanting hip prosthesis |
EP16831036.5A EP3328291A4 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
AU2016298061A AU2016298061B2 (en) | 2015-07-27 | 2016-07-15 | Ball and cup impactors for implanting a hip prosthesis |
ZA2018/00301A ZA201800301B (en) | 2015-07-27 | 2018-01-16 | Ball and cup impactors for implanting a hip prosthesis |
US16/156,671 US10716683B2 (en) | 2015-07-27 | 2018-10-10 | Ball and cup impactors for implanting a hip prosthesis |
US16/156,690 US10722382B2 (en) | 2015-07-27 | 2018-10-10 | Ball and cup impactors for implanting a hip prosthesis |
AU2020260530A AU2020260530B2 (en) | 2015-07-27 | 2020-10-30 | Ball and cup impactors for implanting a hip prosthesis |
AU2020260529A AU2020260529B2 (en) | 2015-07-27 | 2020-10-30 | Ball and cup impactors for implanting a hip prosthesis |
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EP (3) | EP3328291A4 (en) |
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WO2017034845A1 (en) * | 2015-08-21 | 2017-03-02 | Hip Innovation Technology, LLC | Surgical trays, instruments and methods for implanting a hip replacement prosthesis |
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