EP1874253B1 - Kopfstütze für wirbelsäulenoperationen - Google Patents

Kopfstütze für wirbelsäulenoperationen Download PDF

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Publication number
EP1874253B1
EP1874253B1 EP06740819.5A EP06740819A EP1874253B1 EP 1874253 B1 EP1874253 B1 EP 1874253B1 EP 06740819 A EP06740819 A EP 06740819A EP 1874253 B1 EP1874253 B1 EP 1874253B1
Authority
EP
European Patent Office
Prior art keywords
coupled
patient
support
joint
lockable
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.)
Active
Application number
EP06740819.5A
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English (en)
French (fr)
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EP1874253A4 (de
EP1874253A2 (de
Inventor
Thomas K. Skripps
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.)
Allen Medical Systems Inc
Original Assignee
Allen Medical Systems Inc
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
Priority claimed from US11/229,759 external-priority patent/US7520008B2/en
Application filed by Allen Medical Systems Inc filed Critical Allen Medical Systems Inc
Priority to EP13193216.2A priority Critical patent/EP2722029B1/de
Publication of EP1874253A2 publication Critical patent/EP1874253A2/de
Publication of EP1874253A4 publication Critical patent/EP1874253A4/de
Application granted granted Critical
Publication of EP1874253B1 publication Critical patent/EP1874253B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/101—Clamping means for connecting accessories to the operating table
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/0036—Orthopaedic operating tables
    • A61G13/0054—Orthopaedic operating tables specially adapted for back or spinal surgeries
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/121—Head or neck
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/122—Upper body, e.g. chest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/123—Lower body, e.g. pelvis, hip, buttocks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/1245—Knees, upper or lower legs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/125—Ankles or feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/128—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations
    • A61G13/129—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations having surface parts for adaptation of the size, e.g. for extension or reduction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/128—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations
    • A61G13/1295—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations having alignment devices for the patient's body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/32—Specific positions of the patient lying
    • A61G2200/325—Specific positions of the patient lying prone

Definitions

  • the present disclosure generally relates to surgical tables, and particularly to surgical tables for spinal surgery. More particularly, the present disclosure relates to an apparatus for supporting a patient's head during spinal surgery.
  • Positioning of a patient is an important consideration in spinal surgery.
  • a patient undergoing spinal surgery must be properly positioned in a prone position to provide the surgeon adequate access to a surgical site.
  • Some known surgical tables are usable for spinal surgeries, such as a surgical table shown in U.S. Patent No. 5,131,106 and a surgical table extension shown in U.S. Patent No. 4,995,067 .
  • U.S. Patents Nos. 5,131,106 and 4,995,067 are known surgical tables.
  • US 3188079 discloses an apparatus for attachment to a patient support frame to support the head,of a patient lying in a prone position on the frame during surgery, the apparatus comprising a base configured to mount on the frame, a post coupled to the base and extending upwardly therefrom, a head support for supporting the head of a patient lying in a prone position on the frame, and a lockable joint coupled to the post and coupled to the head support to position the head support above the base, the lockable joint, when locked, preventing movement of the head support relative to the post about a plurality of axes, and the lockable joint, when unlocked, allowing movement of the head support relative to the post about the plurality of axes.
  • the present invention provides an apparatus which is characterized in that the lockable joint when locked, preventing movement of the head support along the post and when unlocked, allowing movement of the head support along the post, and in that the lockable joint includes a housing movable along the post and a handle coupled to the housing and configured to lock the housing at a selected longitudinal position along the post and lock the lockable joint against movement about the plurality of axes, the handle being movable between a first position in which the lockable joint is locked and a second position in which the lockable joint is unlocked.
  • At least the base and the head support may be formed of radiolucent material.
  • the handle may be removably coupled to the housing.
  • a tether may support the handle when the handle is not coupled to the housing.
  • the lockable joint may comprise a ball joint.
  • the lockable joint may comprise a modular support configured to be coupled to each of a plurality of head supports.
  • head support broadly includes skull clamps, head rings, forehead supports, horseshoe headrests, and the like.
  • the base may include a pair of longitudinally extending and transversely spaced side portions and a cross portion extending transversely between the side portions.
  • the side portions may define a space below the head support which is substantially free of any structure that would interfere with the caregiver having relatively unrestricted access to the mouth, the nose and the eyes of a patient lying in a prone position.
  • a mirror may be coupled to the cross portion below the head support for movement between a use position adjacent a patient's face and a storage position away from the patient's face.
  • a friction mechanism may be coupled to the mirror and coupled to the cross portion of the base to maintain the mirror at a selected angular position.
  • a lockable second joint may be coupled to the cross portion and coupled to the post.
  • the lockable second joint when locked, may prevent lateral movement of the post along the cross portion.
  • the lockable second joint when unlocked, may allow lateral movement of the post along the cross portion.
  • the lockable second joint may include a mounting block having a downwardly facing channel sized to receive the cross portion and a handle.coupled to the mounting block and configured to lock the mounting block at a selected transverse position along the cross portion.
  • the head support may comprise a shell having an upwardly facing concave interior surface and a chin support coupled to a pair of laterally spaced arms that extend outwardly from a downwardly facing surface of the shell.
  • the shell may have a cutout in communication with an opening formed by the chin support and the laterally spaced arms to allow one or more tubes, such as an endotracheal tube, to be routed therethrough to a patient's nose and/or mouth.
  • the arms may be located below the upwardly facing surface of the shell to define a space above the arms through which one or more tubes may be routed to a patient's nose and/or mouth.
  • the shell may be molded from a plastic material, and the cutout may be integrally molded therewith.
  • a head support apparatus may comprise a head support including a shell having a chin pad and a foam pad having a downwardly opening recess configured to receive the chin pad when the head support supports the head of a patient lying in a prone position with the foam pad interposed between the shell and the patient's face.
  • the shell may have a pair of posts that extend downwardly from a downwardly facing surface of the shell, and the foam pad may have a pair of laterally spaced tabs that are configured to attach to the posts.
  • a head support apparatus may comprise a head support including a shell having an upwardly facing concave interior surface and a relatively flat foam pad that moves from a flat state into a curved state as it moves down into the shell under the weight of a patient's head.
  • the shell and the flat foam pad may each have a cutout in a region thereof that corresponds to a patient's eyes, nose and mouth.
  • the side walls of the cutout in the foam pad may flare outwardly away from a patient's face as the foam pad moves into the curved state under the weight of a patient's head.
  • the foam pad may be made from water-based polyurethane foam.
  • a spinal surgery extension 20 is coupled to a surgical table 22.
  • the surgical table 22 has a base 24, a pedestal 26, and a patient support deck 28.
  • the deck 28 includes a head section 30, a seat section 32, and a foot section 34.
  • the head and foot sections 30, 34 are pivotably coupled to the seat section 32 about respective transverse axes 36, 38.
  • Each deck section 30, 32, 34 includes two utility or accessory rails 40 on opposite sides thereof.
  • the deck 28 is pivotable about a transverse axis 42 between Trendelenberg and reverse-Trendelenberg positions.
  • the deck 28 is pivotable about a longitudinal axis 44.
  • the head section 30 is pivoted downwardly to an out-of-the-way position so that the spinal surgery extension 20 can be attached to a head end 46 of the surgical table 22.
  • the spinal surgery extension 20 includes a generally rectangular frame 50, an adjustable telescopic support 52, and a generally U-shaped base 54.
  • An upper end 56 of the telescopic support 52 is coupled to the frame 22 by an upper multi-axes joint 58 and a lower end 60 of the telescopic support 52 is coupled to the base 54 by a lower multi-axes joint 62.
  • the upper joint 30 is a universal joint and the lower joint 30 is a ball joint.
  • the rectangular frame 50 includes left and right longitudinally extending transversely spaced siderails 70, 72 and head and foot end cross rails 74, 76 extending transversely between the siderails 70, 72 near head and foot ends of the frame 50.
  • the head end cross rail 74 is coupled to the telescopic support 52 via the upper joint 58.
  • Two pivot shafts 78 extend outwardly from foot end cross rail 76.
  • the pivot shafts 78 are supported by associated rail clamps 80 secured to the accessory rails 40 of the seat section 32 of the surgical table 22.
  • the pivot shafts 78 allow the frame 50 to pivot about a transverse axis 82 relative to the surgical table 22.
  • the siderails 70, 72 and the cross rails 74, 76 of the frame 50 have a generally rectangular cross section.
  • the rails 70, 72, 74, 76 are each about 1.5 inches (about 3.81 centimeters) high and about 1.25 inches (about 3.175 centimeters) wide.
  • the inside spacing between the siderails 70, 72 is about 14.5 inches (about 36.83 centimeters).
  • the inside spacing between the cross rails 74, 76 is about 48.5 inches (about 123.2 centimeters).
  • the rails 70, 72, 74, 76 are made from radiolucent material, such as carbon fiber tube with a foam core, so that they do not interfere with x-ray imaging of a patient supported in a prone position on the frame 50 during spinal surgery.
  • radiolucent material such as carbon fiber tube with a foam core
  • the telescopic support 52 includes a crank handle 90 which is operable to vary the height of the head end of the frame 50 between about 30 inches (about 76.2 centimeters) and about 42 inches (about 106.68 centimeters) above a floor 92.
  • the U-shaped base 54 includes a bight portion 94 and two spaced legs 96 which flare outwardly. When the frame 50 is attached to the surgical table 22, the legs 96 extend toward the surgical table as shown in Fig. 1 .
  • Two wheels 98 are coupled to the bight portion 94 such that the wheels 98 are spaced from the floor when the legs 94 are resting on the floor 92.
  • Each leg 96 has a hook 88 at its free end.
  • the frame 50 is detached from the surgical table 22 and folded downwardly so that the pivot shafts 78 are received in the respective hooks 88.
  • the telescopic support 52 is extended by turning the crank 90, thereby firmly securing the pivot shafts 78 to the hooks 88.
  • the extension 20 can be tilted so that wheels 98 engage the floor 92 and the assembly can then be rolled along the floor 92.
  • head, chest and hip support apparatuses 100, 102, 104 are coupled to the frame 50 for supporting a patient in a prone position during spinal surgery.
  • the head support apparatus 100 supports the head of a patient lying in a prone position during spinal surgery.
  • the chest and hip support apparatuses 102, 104 support the chest and the hips of the patient lying in a prone position during spinal surgery.
  • the upper body of a patient lying in a prone position is supported on the head, chest and hip support apparatuses 100, 102, 104 attached to the frame 50, with at least portions of the legs of the patient supported on the surgical table 22 to which the extension 20 is coupled.
  • the pivotable coupling of the foot end of the frame 50 to the surgical table 20, the pivotable coupling of the head end of the frame 50 to the telescopic support 52 and the pivotable coupling of the telescopic support 52 to the base 54 allow articulation of the table 22 within a range of movement without creating undue stresses and/or bending moments in the extension 20 and/or the table 22.
  • the head support apparatus 100 includes a generally C-shaped base 110 configured to mount on the frame 50, a post 112 coupled to the base 110 and extending forwardly and upwardly therefrom, a head support 114 for supporting the head of a patient lying in a prone position during spinal surgery, and a lockable upper joint 116 coupled to the post 112 and coupled to the head support 114 to position the head support 114 above the base 110 in a spaced-apart relationship.
  • the head support 114 is made from a relatively rigid radiolucent plastic material, such as polyethylene.
  • a cushion such as a contoured foam pad 120 shown in Fig.
  • the contoured foam pad 120 is made from cosmetic foam, such as water-based polyurethane foam.
  • Figs. 12-14 show a relatively thin flat foam pad 122 which may be substituted for the foam pad 120.
  • the lockable joint 116 when locked, prevents vertical movement of the head support 114 along the post 112 and prevents movement of the head support 114 relative to the post 112 about a plurality of axes.
  • the term "plurality of axes” means at least two axes.
  • the lockable joint 116 when unlocked, allows vertical movement of the head support 114 along the post 112 and allows movement of the head support 114 relative to the post 112 about a plurality of axes.
  • the lockable joint 116 when unlocked, may allow movement of the head support 114 relative to the post 112 about two axes, three axes, and so on.
  • spinal surgery is used in a general sense to mean any back surgery, including the spinal surgery, in which a patient is supported in a prone position with the patient's head supported by the head support 114.
  • the base 110 includes a pair of longitudinally extending and transversely spaced side portions 130, 132 and a cross portion 134 extending transversely between the side portions 130, 132.
  • the side portions 130, 132 and the cross portion 134 define a space below the head support 114 which is substantially free of any structure that would interfere with the caregiver having relatively unrestricted access to the mouth, the nose and the eyes of a patient lying in a prone position with the patient's head supported by the head support.
  • a mirror 122 is coupled to the cross portion 134 below the head support 114 for pivoting movement about a generally transversely extending axis 124 between a storage position (shown in phantom in Fig. 4 ) away from a patient's face and a use position (shown in solid in Fig. 4 ) adjacent the patient's face so that a caregiver can view the patient's mouth, nose and eyes in the mirror 122.
  • the base 110 is about 10 inches (about 25.4 centimeters) long, about 17.75 inches (about 45.085 centimeters) wide, and about 2 inches (about 5.08 centimeters) high.
  • the illustrated base 110 has a C-shaped configuration in plan view, it may very well have a different configuration in plan view, such as an H-configuration.
  • the base 110 is made from radiolucent material, such as ABS plastic.
  • the head support apparatus 100 includes a lockable lower joint 118 coupled to the cross portion 134 and coupled to the post 112.
  • the lockable joint 118 when locked, prevents lateral movement of the post 112 along the cross portion 134
  • the lockable joint 118 when unlocked, allows lateral movement of the post 112 along the cross portion 134.
  • the post 112 has a first portion 136 that extends forwardly and upwardly from the lockable joint 118 and a second portion 138 that extends upwardly from the first portion 136.
  • the post 112 has a diameter of about 0.625 inches (about 1.5875 centimeters) and a height of about 9.0 inches (about 22.86 centimeters).
  • the post 112 is made of stainless steel.
  • transverse and lateral are used interchangeably, and each term is intended to have the broad meanings of both.
  • the head support 114 includes a cradle or shell 140 having an upwardly facing generally concave interior surface 142 dimensioned to accommodate the facial structure of a patient resting in a prone position and a chin pad or support 144 coupled the shell 140 by a pair of laterally spaced side arms 146, 148.
  • the phrase "patient lying or resting in a prone position” means patient lying or resting in a prone position with the patient's head supported by the head support 114.
  • the side arms 146, 148 are each attached to a downwardly facing surface 150 ( Fig. 4 ) of the shell 140 by two screws 152.
  • the upwardly facing surface 142 of the shell 140 is countersunk at locations corresponding to the screws 152 to avoid any projecting or otherwise obstructing parts.
  • the upwardly and downwardly facing surfaces 142, 150 of the shell 140 are generally parallel to each other in a region thereof that corresponds to the forehead of a patient lying in a prone position such that the shell 140 has a generally uniform thickness of about 0.125 inches (about 0.3175 centimeters) in this region.
  • the side arms 146, 148 are coupled to the downwardly facing surface 150 of the shell 140, they may very well be connected to the upwardly facing surface 142 of the shell 140. Also, it is noted that any suitable fasteners, such as pins, studs, rivets, nut and bolt combinations, and the like, may be used for attaching the side arms 146, 148 to the shell 140.
  • the chin pad 144 is integrally formed with the side arms 146, 148. In other embodiments, the chin pad 144 may be separately formed from the side arms 146, 148 and then attached to the side arms 146, 148 by suitable fasteners.
  • the chin pad 144 is attached to the shell 140 by two laterally spaced side arms 146, 148, it is understood that, in other embodiments, the chin pad 144 may be attached to the shell 140 by one arm, instead of two arms, that extends outwardly from the shell 140. In some embodiments, the chin pad 144 and the side arms 146, 148 may be integrally formed with the shell 140. In the illustrated embodiment, the shell 140, the chin pad 144 and the side arms 146, 148 are all molded from a generally rigid radiolucent plastic material, such as polyethylene.
  • the shell 140 has a cutout 160 in a region thereof that generally corresponds to the eyes and nose of a patient lying in a prone position.
  • the cutout 160 opens outwardly through the upwardly and downwardly facing surfaces 142, 150 of the shell 140.
  • the cutout 160 opens outwardly through a bottom edge 190 of the shell 140.
  • the cutout 160 has a generally elliptical or oval first portion 164 and a short generally hourglass-shaped second portion 166.
  • the cutout 160 defines a pair of spaced-apart inwardly projecting tongue portions 168.
  • the second portion 166 of the cutout 160 has a transverse width that varies from broad-to-narrow-to-broad in a direction toward a patient's mouth.
  • the average transverse width of the first portion 164 is greater than the average transverse width of the second portion 166.
  • the cutout 160 is integrally molded with the shell 140.
  • the chin pad 144 and the laterally spaced side arms 146, 148 define an opening 170 in a region that generally corresponds to the mouth of a patient lying in a prone position.
  • the side arms 146, 148 are curved, generally echoing the shape of the chin area of a patient lying in a prone position.
  • the first portion 164 of the cutout 160 is in communication with the opening 170 through the second portion 166 of the cutout 160.
  • the cutout 160 and the opening 170 are configured to allow one or more tubes, such as an endotracheal tube, to be routed therethrough to a patient's nose and/or mouth to provide life support to the patient.
  • the side arms 146, 148 are located below the upwardly facing surface 142 of the shell 140 and below an upwardly facing surface 172 ( Fig. 32 ) of the chin pad 144 to define a clearance space 156 ( Fig. 32 ) above the side arms 146, 148 through which these tubes may be routed to a patient's nose and/or mouth.
  • the tubes carrying medical gases may be routed from life support equipment through the clearance space over the side arms 146, 148, then through the cutout 160 and/or the opening 170, to a patient's nose and/or mouth.
  • the C-shaped design of the base 110, positioning the head support 114 above the base 110, positioning of the side arms 146, 148 below the upwardly facing surface 142 of the shell 140, and the positioning of the cutout 160 and the opening 170 of the head support 114 provide relatively unrestricted access to a patient's airway and allows monitoring of the patient's eyes.
  • the contoured foam pad 120 has tabs 180 which are secured to posts 182 extending downwardly from the underside of the shell 140.
  • the foam pad 120 has a cutout 178 that generally echoes the cutout 160 and the opening 170 of the head support 114.
  • the upwardly facing surface 142 of the shell 140 is countersunk at locations corresponding to the posts 182 to avoid any projecting or otherwise obstructing parts.
  • the underside 186 of the foam pad 120 has an oval-shaped ridge 188 defining a recess 189 in a region thereof that corresponds to the chin pad 144 of the head support 114.
  • the chin pad 144 is received in the recess 189 when the head support 114 supports the head of a patient lying in a prone position with the foam pad 120 interposed between the shell 140 and the patient's face.
  • the shell 140 In plan view, as shown, for example, in Fig. 3 , the shell 140 generally echoes the shape of the upper portion of the face of a patient lying in a prone position. As used herein, the phrase "upper portion of the face” means the portion of the face above the mouth of the patient.
  • the shell 140 has the split bottom edge 190, a pair of generally parallel laterally spaced side edges 192 that extend forwardly from the opposite ends of the bottom edge 190, and a curved top edge 194 connecting the forward ends of the side edges 192.
  • the shell 140 has a reinforcing bead 196 along the bottom, side and top edges 190, 192, 194.
  • the reinforcing bead 196 defines a generally flat horizontal surface.
  • the shell 140 has oppositely disposed reinforcing ribs 198 that extend downwardly from the side edges 192.
  • Each rib 198 has a first portion having a first thickness near the of the curved top edge 194 and a second portion having a second thickness that is smaller than the first thickness and that diminishes somewhat near the bottom edge 190.
  • the shell 140 has a mounting block 210 that extends forwardly and downwardly from the curved top edge 194.
  • the block 210 has a longitudinally extending opening that opens outwardly through a forwardly facing surface of the block 210.
  • the lockable upper joint 116 is coupled to the post 112 and coupled to the head support 114.
  • the lockable joint 116 comprises a ball joint 230 including a cylindrical housing 232 having a longitudinal axis 234.
  • the housing 232 includes a small diameter bore 236 and a large diameter bore 238.
  • the small diameter bore 234 is sized to hold a ball 240 in place at seat portions 242.
  • the ball 240 is free to simultaneously rotate about a plurality of axes within the confines of the small diameter bore 236.
  • a dog-legged support arm 244 extends outwardly from the ball 240 through the small diameter bore 236 in the housing 232.
  • An end portion 246 of the support arm 244 is inserted into the longitudinally extending opening in the mounting block 210 of the head support 114 and held in place in the opening 212 by two screws.
  • the dog-legged support arm 244 secures the head support 114 to the ball joint 230.
  • the large diameter bore 238 of the housing 232 is configured to receive an insert 250 which is disposed between the ball 240 and the post 112, which extends vertically upwardly from the base 110.
  • the post 112 extends though oppositely disposed openings in the housing 232, which define an axis 256 that is disposed generally perpendicularly to the longitudinal axis 234 of the housing 232.
  • the longitudinal axis 234 of the housing 232 extends generally horizontally when the post 112 extending through the openings in the housing 232 extends generally vertically.
  • a sleeve 260 having a threaded end portion 262 is threaded into a threaded opening 264 in the housing 232.
  • the sleeve 260 has a small diameter bore 266, a large diameter bore 268, and an annular seat portion 270 formed at the juncture of small and large diameter bores 266, 268.
  • the small diameter bore 266 of the sleeve 260 has internal threads.
  • a stud 272 is threaded into the threaded bore 266 in the sleeve 260 such that a distal end 274 of the stud 272 extends into the housing 232 to engage the insert 250 sandwiched between the ball 240 and the post 112.
  • a collar portion 276 of the stud 272 is configured to engage the seat portion 270 of the sleeve 260 as the stud 272 is threaded out of the sleeve 260, thereby preventing accidental removal of the stud 272 from the sleeve 260.
  • the housing 232 is enclosed between first and second covers 246, 248.
  • the covers 246, 248 have holes that line up with the associated holes in the housing 232.
  • the covers are made from soft plastic material, such as Vinyl.
  • the lockable joint 116 is of the type disclosed in U.S. Patent No. 6,622,324 , which is hereby incorporated by reference herein.
  • the stud 272 has a hex head 280 which is configured to be received in a hex socket 282 of a removable handle 284.
  • the removable handle 284 is coupled to the stud 272 and turned anticlockwise.
  • the handle 284 is turned clockwise.
  • the handle 284 is detached from the stud 272 and supported by a tether 286 which has its other end secured to the post 112. Detaching the handle 284 from the stud 272 when not in use prevents accidental unlocking of the lockable joint 116 that can, in turn, cause the head support 114 to precipitously drop during surgery.
  • a lockable stop collar 290 is secured to the vertically extending portion 138 of the post 112 by a thumb screw 292 just below the lockable joint 116. The vertical position of the stop collar 290 can be adjusted along the post 112.
  • the C-shaped base 110 includes the side portions 130, 132 and the cross portion 134 extending laterally between the side portions 130, 132.
  • Each side portion 130, 132 includes a downwardly facing channel 310 for receiving an associated siderail 70, 72 of the frame 50.
  • Each siderail 70, 70 has a generally rectangular cross section, and each downwardly facing channel 310 in the side portion 130, 132 has a complementary generally rectangular cross section.
  • the head support apparatus 100 includes clamps 320, 322 for securing the side portions 130, 132 to the respective siderails 70, 72.
  • the clamps 320, 322 are described in detail in PCT International Publication No. WO 2006/110721 A2 .
  • the mirror 122 is coupled to the cross portion 134 by a pair of hinges assemblies 340 for pivoting movement between a storage position (shown in phantom Fig. 4 ) away from a patient's face and a use position (shown in solid in Fig. 4 ) adjacent the patient's face.
  • Each hinge assembly 340 has a first portion 342 that is secured by a screw 344 to a downwardly facing recessed ledge portion 316 ( Fig. 9 ) of the cross portion 134.
  • Each hinge assembly 340 has a second portion 346 that is secured to the mirror 122 by two nut and bolt combinations 348.
  • Each hinge assembly 340 includes a friction mechanism 350 that produces a controlled friction that allows the mirror 122 to rotate when a caregiver applies a rotative force, but that maintains the mirror 122 at a selected angular position when the force is removed.
  • the lockable lower joint 118 is coupled to the base 110 and coupled to the post 112.
  • the lockable joint 118 includes a sliding mounting block 360 coupled to the cross portion 134 of the base 110 for movement along the cross portion 134 and a U-shaped handle 362 coupled to the block 360 and configured to lock the block 360 at a selected lateral position along the cross portion 134.
  • the handle 362 is movable between a locked position shown in Fig. 10 in which the lockable joint 118 is locked and an unlocked position shown in Fig. 11 in which the lockable joint 118 is unlocked.
  • the cross portion 134 has a central portion 370 having a first thickness connecting end portions 372 having a second thickness, which is greater than the first thickness.
  • the block 360 includes a downwardly facing channel 374 for slidably receiving the reduced-thickness central portion 370 of the cross portion 134.
  • the reduced-thickness central portion 370 has a generally rectangular cross-section, and the downwardly facing channel 374 in the block 360 has a complementary generally rectangular cross-section.
  • the block 360 is movable along the reduced-thickness central portion 370 between inwardly facing step portions 376 defined at the juncture of the reduced-thickness central portion 370 and the end portions 372. As shown in Fig.
  • the U-shaped handle 362 has a bight portion 380 connecting leg portions 382.
  • the bight portion 380 of the handle 362 is rotatably received in a downwardly facing slot 384 in the block 360.
  • a cover plate 386 is secured to the block 360 such that the cover plate 386 and the block 360 are disposed on the opposite sides of the reduced-thickness central portion 370 of the base 110 and the bight portion 380 of the handle 362 as shown in Figs. 10 and 11 .
  • the cover plate 386 is secured to the block 360 by a pair of screws 388 near a head end of the block 360 and a screw 390 near a foot end of the block 360.
  • the head end screws 388 extend through slightly oversized openings in the cove plate 386 and are threaded into threaded openings in the block 360.
  • a set of four Belleville washers 392 are inserted between the underside of the cover plate 386 and the head portion of each of the head end screws 388.
  • the foot end screw 390 extends through a slightly oversized opening in the cove plate 386 and is threaded into a threaded opening in the block 360. As shown in Fig.
  • the Belleville washers 392 serve to clamp the sliding block 360 to the reduced-thickness central portion 370 when the U-shaped handle 362 is in the locked position.
  • a set screw 394 is threaded into a threaded opening in the cover plate 386 such that a distal end 396 of the set screw 394 extends through an opening in the block 360 to engage the bight portion 380 of the U-shaped handle 362.
  • the distal end 396 of the set screw 394 engages a flat portion 398 of the bight portion 380 when the handle 362 is in the locked position as shown in Fig. 10 .
  • the bight portion 380 pushes down on the set screw 394 to cause the cover plate 386 to move away from the block 360 to free the block 360 to move sideways along the central cross portion 370 of the base 110.
  • Figs. 12-14 shows another embodiment of the contoured foam pad 120.
  • the pad 122 is relatively thin and flat.
  • the pad 122 is interposed between the patient's face and the head support shell 140 during surgery to reduce the risk of injuries to the patient's face.
  • the pad 122 has oppositely disposed upwardly and downwardly facing surfaces 400, 402 and a side wall 404 extending therebetween.
  • the upwardly and downwardly facing surfaces 400, 402 of the pad 122 are generally parallel to each other so that the pad 122 has a generally uniform thickness as shown in Fig. 14 .
  • the pad 122 generally echoes the shape of a patient's face as shown in Fig. 13 .
  • the pad 122 has a cutout 406 in a region thereof that generally corresponds to the eyes, nose and mouth of a patient lying in a prone position.
  • the cutout 406 opens outwardly through the upwardly and downwardly facing surfaces 400, 402 of the pad 122.
  • a first portion 408 of the cutout 404 has a generally oval shape and a second portion 410 of the cutout has a generally trapezoidal shape.
  • the width of the second portion 410 varies from narrow-to-broad in a direction toward a patient's chin.
  • the average width of the first portion 408 is greater than the average width of the second portion 410.
  • the pad 122 has oppositely disposed tabs 412 which extend outwardly from the side wall 404 of the pad 122.
  • the tabs 412 in the pad 122 have slots 414 for attaching elastic straps or bands.
  • the other ends of the straps are configured to be attached to the underside of the shell 140 by suitable fasteners to secure the pad 122 to the shell 140.
  • the tabs 414 of the pad 122 are configured to engage complementary tabs (not shown) provided on the shell 140 to properly position the pad 122 with respect to the shell 140.
  • the cutout 406 in the pad 122 When the head of a patient lying in a prone position is supported by the head support 114 with the pad 122 interposed between the head support 114 and the face of the patient, the cutout 406 in the pad 122 generally aligns with the cutout 160 and the opening 170 in the head support 114.
  • One or more tubes carrying medical gases and/or fluids may be routed from life support equipment through the cutout 160 and the opening 170 in the head support 114, and then through the cutout 406 in the pad 122 to a patient's nose and/or mouth.
  • Figs. 33 and 34 show the pad 122 moving from a flat state ( Fig. 33 ) into a curved state ( Fig. 34 ) as it moves down into the head support shell or cradle 140 under the weight of a patient's head.
  • side walls 416 of the cutout 406 flare outwardly away from the patient's face as the weight of the patient's head causes the downwardly facing surface 402 of the pad 122 to stretch and bend as it moves down into the head support shell or cradle 140 under the weight of a patient's head.
  • the outward flaring of the side walls 416 away from the patient's face facilitates routing of the tubes carrying medical gases through the cutout 160 and the opening 170 in the head support 114 and through the cutout 406 in the pad 122 to a patient's nose and/or mouth. Also, the outward flaring of the side walls 416 reduces the risk of entangling these tubes during surgery.
  • the cutout 406 in pad 122 to accommodate the patient's eyes, nose and mouth is smaller in its overall dimensions (e.g., width and length) than the cutout 160 in head support 114. As a result, the region of the pad 122 adjacent the periphery of its cutout 406 are not directly supported by head support 114. This tends to reduce forces against the patient in the region adjacent cutout 406, with the forces being concentrated in the areas where head support 114 underlies foam pad, which areas are spaced from the opening defining the shape of cutout 406 of pad 122.
  • the pad 122 has a width of about 11.60 inches (about 29.46 centimeters) and a height of about 13.9 inches (about 35.31 centimeters).
  • the thickness of the pad 122 is about 1.75 inches (about 4.45 centimeters).
  • the first transverse width of the cutout 406 is about 6.0 inches (about 15.24 centimeters).
  • the second transverse width of the cutout 406 varies between about 2.0 inches (about 5.08 centimeters) near the top to about 3.0 inches (about 7.62 centimeters) near the bottom.
  • the slots 414 in the tabs 412 are about 1.25 inches (about 3.18 centimeters) wide.
  • the pad 122 is made from cosmetic foam, such as water-based polyurethane foam.
  • the cosmetic foam material used for the pad 122 is a relatively pliable, easily stretchable soft material that has a relatively low friction surface so that the friction between an upwardly facing surface 400 of the pad 122 and the patient's skin is reduced.
  • Figs. 15-31 show other embodiments of the head support apparatus 100.
  • Figs. 15-17 show a head support apparatus 450 comprising a C-shaped base 452 configured to mount on the frame 50, a post 454 coupled to the base 452 and extending generally upwardly therefrom, and a lockable joint 456 coupled to the post 454 and coupled to a modular coupler 458.
  • the coupler 458 is configured for selective coupling to each of a plurality of head and/or forehead supports, such as Mayfield ® tongs, skull clamps, head rings, head holders, horseshoe headrests, and the like.
  • head support is intended to broadly include all head supports including "forehead support.”
  • the lockable joint 456 is similar to the lockable joint 116 of the head support apparatus 100.
  • the base 452 includes a pair of laterally spaced side portions 460 and a cross portion 462 extending transversely between the side portions 460.
  • a mirror 464 is coupled to the cross portion 462 below the coupler 458 for pivoting movement between use and storage positions.
  • Each of the side portions 460 of the base 452 has a downwardly opening channel 466 for receiving an associated siderail 70, 72 of the frame 50.
  • the lockable joint 456 includes a handle 457 movable between an unlocked position allowing movement of the coupler 45 8 about a plurality of axes and a locked position preventing movement of the coupler 458 about the plurality of axes.
  • a forehead support 470 and a pair of cheek supports 472 are coupled to the modular coupler 458 by a support arm 474.
  • a head support 490 is coupled to the modular coupler 458 by a support arm 492.
  • a Mayfield ® adapter 510 is coupled to the modular coupler 458.
  • the forehead support 470 and the cheek supports 472 include associated connectors 476, 478.
  • the connector 476 when unlocked, allows longitudinal movement of the forehead support 470 along the support arm 474 and allows pivoting movement of the forehead support 470 about the support arm 474.
  • the connector 476 when locked, locks the forehead support 470 at a selected longitudinal position along the support arm 474 and locks the forehead support 470 at a selected angular position relative to the support arm 474.
  • the connector 478 when unlocked, allows longitudinal movement of the cheek supports 472 along the support arm 474 and allows pivoting movement of the cheek supports 472 about the support arm 474.
  • the connector 478 when locked, locks the cheek supports 472 at a selected longitudinal position along the support arm 474 and locks the cheek supports 472 at a selected angular position relative to the support arm 474.
  • a disposable cushion such as a foam pad 480, is removably secured to an upwardly facing surface of the forehead support 470.
  • the head support 490 is coupled to the modular coupler 458 by the support arm 492.
  • the head support 490 comprises a plastic shell 494 having an upwardly facing generally concave interior surface defining a forwardly and upwardly opening cavity 496.
  • a foam cushion 500 having a downwardly facing generally convex exterior surface is received in the cavity 496.
  • the downwardly facing surface of the foam cushion 500 is configured for cooperative engagement with the upwardly facing surface of the shell 494.
  • an upwardly facing surface of the foam cushion 500 is generally flat.
  • the upwardly facing surface of the foam cushion 500 may be contoured to provide a comfortable fit to a patient's face.
  • the foam cushion 500 has a cutout 502 that opens outwardly through the upwardly and downwardly facing surfaces of the foam cushion 500.
  • the shell 494 has a cutout (not shown) that opens outwardly through the upwardly and downwardly facing surfaces of the shell 494.
  • the cutouts in the foam cushion 500 and the shell 494 are aligned so that one or more tubes carrying medical gases can be routed therethrough to the mouth and/or nose of a patient.
  • the shell 494 and the foam cushion 500 are both made from transparent material, such as clear polycarbonate material, to improve the visibility of a patient's face.
  • the Mayfield ® adapter 510 coupled to the modular coupler 458.
  • the Mayfield ® adapter 510 is, in turn, couplable to Mayfield ® adapter compatible head supports, such as a Mayfield ® skull clamp or tongs (not shown), and the like.
  • Figs. 18-21 show a head support apparatus 550 comprising a C-shaped base 552 configured to mount on the frame 50, a post 554 coupled to the base 552 and extending generally upwardly therefrom, a lockable joint 556 coupled to the post 554 and having a support arm 558 extending outwardly therefrom, and a forehead support 560 coupled the support arm 558.
  • the lockable joint 556 is similar to the lockable joint 116 of the head support apparatus 100.
  • a pair of cheek pads 562 are coupled the forehead support 560.
  • the cheek pads 562 are removably coupled.
  • the cheek pads 562 are independently adjustable.
  • the cheek pads 562 are dispensed with.
  • a disposable cushion, such as a foam pad 564, is removably secured to an upwardly facing surface of the forehead support 560.
  • the base 552 includes a pair of laterally spaced side portions 570 and a cross portion 572 extending transversely between the side portions 570.
  • Each of the side portions 570 of the base 552 has a downwardly opening channel 574 for receiving an associated siderail 70, 72 of the frame 50.
  • a mirror (not shown) is coupled to the cross portion 572 below the forehead support 560 for pivoting movement between use and storage positions.
  • the lockable joint 556 includes a removable quick-release handle 576 ( Fig. 20 ) movable between an unlocked position allowing movement of the forehead support 560 about a plurality of axes and a locked position preventing movement of the forehead support 560 about the plurality of axes.
  • the head support 560 has slots 566 for attaching elastic straps. The other ends of the straps have complementary couplers.
  • Figs. 22-25 show a head support apparatus 600 comprising a generally rectangular base 602 configured to mount on the frame 50, an inclined plane 604 coupled to the base 602 and having an upwardly facing surface 606, and a foam block 608 having a downwardly facing surface 610.
  • the downwardly facing surface 610 of the foam block 608 is configured for engagement with the upwardly facing surface 606 of the inclined plane 604 such that an upwardly facing surface 612 of the foam block 608 is generally parallel to the base 602.
  • the foam block 608 is removably secured to the inclined plane 604 by suitable fasteners, such as Velcro ® strips.
  • the foam block 608 has a cutout 614 that opens outwardly through the upwardly and downwardly facing surfaces of the foam block 608.
  • the inclined plane 604 has a cutout 616 that opens outwardly through the upwardly and downwardly facing surfaces of the plane 604.
  • the foam block 608 has an opening 618 that extends from a side wall 620 of the foam block 608 to the cutout 614 in the foam block 608.
  • One or more tubes carrying medical gases may be routed to a patient's mouth and/or nose through the cutouts 614, 616. Alternately, one or more tubes carrying medical gases may be routed to a patient's mouth and/or nose through the opening 618 in the foam block 608 and then through the cutout 614 in the foam block 608.
  • the opening 618 opens outwardly through the upwardly facing surface 612 of the foam block 608 through a vertically extending narrow track 622 so that tubes carrying medical gases can be readily inserted into the opening 618 through the track 622.
  • the base 602 has downwardly opening channels 624 for receiving siderails 70, 72 of the frame 50 of the spinal surgery extension 20.
  • the inclined plane 604 and the foam block 608 are both made from transparent material, such as clear polycarbonate material, to improve the visibility of a patient's face.
  • Fig. 26 shows a head support apparatus 650 similar to the head support apparatus 600 of Figs. 22-25 .
  • the apparatus 650 comprises a generally rectangular base 652 configured to mount on the frame 50, an inclined plane 654 having an upwardly facing surface 656, and a foam block 658 having a downwardly facing surface 660.
  • the downwardly facing surface 660 of the foam block 658 is configured for engagement with the upwardly facing surface 656 of the inclined plane 654.
  • the foam block 658 is removably secured to the inclined plane 654 by suitable fasteners, such as Velcro ® strips.
  • the upwardly facing surface 662 of the foam block 65 is contoured to accommodate the facial structure of a patient's face.
  • the foam block 658 has a cutout 664 that opens outwardly through the upwardly and downwardly facing surfaces of the foam block 658.
  • the inclined plane 654 has a cutout 666 that opens outwardly through the upwardly and downwardly facing surfaces of the plane 654.
  • One or more tubes carrying medical gases may be routed to a patient's mouth and/or nose through the cutouts 664, 666 in the foam block 658 and the inclined plane 654.
  • the base 652 has downwardly opening channels 668 for receiving siderails 70, 72 of the frame 50 of the spinal surgery extension 20.
  • the inclined plane 654 and the foam block 658 are both made from transparent material, such as clear polycarbonate material, to improve the visibility of a patient's face.
  • Figs. 27-30 show a head support apparatus 700 comprising a C-shaped base 702 configured to mount on the frame 50, a vertically adjustable and lockable telescopic post 704 coupled to the base 702 and extending generally upwardly therefrom, a relatively shallow inclined dish 706 coupled to the telescopic post 704, and a horseshoe-shaped foam block 708 coupled the relatively shallow dish 606.
  • the vertical position of the foam block 708 can be adjusted by varying the height of the telescopic post 704.
  • a downwardly facing surface of the foam block 708 is generally convex and a complementary upwardly facing surface of the inclined dish 706 is generally concave.
  • the generally convex downwardly facing surface of the foam block 708 is configured for engagement with the generally concave upwardly facing surface of the inclined dish 706.
  • the foam block 708 is removably secured to the inclined dish 706 by suitable fasteners, such as Velcro ® strips.
  • the foam block 708 has a cutout 714 that opens outwardly through the upwardly and downwardly facing surfaces of the foam block 708.
  • the inclined dish 706 has a cutout 716 ( Fig. 29 ) that opens outwardly through the upwardly and downwardly facing surfaces of the dish 706.
  • One or more tubes carrying medical gases may be routed to a patient's mouth and/or nose through the cutouts 714, 716 in the foam block 708 and the inclined dish 706.
  • the base 702 includes a pair of laterally spaced side portions 720 and a cross portion 722 extending transversely between the side portions 720. The side portions 720 of the base 702 are clamped to the associated siderails 70, 72 of the frame 50 by suitable clamps.
  • a mirror 724 is coupled to the cross portion 722 below the foam block 708 for pivoting movement between use and storage positions.
  • the telescopic post 704 is coupled to the cross portion 722 of the base 702 for pivoting movement about a transverse axis.
  • the inclined dish 706 and the foam block 708 are both made from transparent material, such as clear polycarbonate material, to improve the visibility of a patient's face.
  • the inclined dish 706 is slidable relative to the telescopic post 704 in a longitudinal direction on suitable tracks (not shown).
  • Fig. 31 shows a head support apparatus 750 comprising a base 752 configured to mount on the frame 50, a U-shaped support 754 coupled to the base 702 and extending generally upwardly therefrom, a horseshoe-shaped cradle or shell 756 coupled to a bight portion 758 of the U-shaped support 754 for pivoting movement about a transverse axis, and a horseshoe-shaped foam block 760 received in an upwardly opening cavity in the shell 756.
  • the upwardly facing surface 764 of the foam block 760 is contoured to accommodate the facial structure of a patient's face.
  • the foam block 760 has a cutout 766 that opens outwardly through the upwardly and downwardly facing surfaces of the foam block 760.
  • One or more tubes carrying medical gases may be routed to a patient's mouth and/or nose through the cutout 766 in the foam block 760.
  • the base 752 has channels 768 for receiving the associated siderails 70, 72 of the frame 50.
  • a mirror (not shown) is coupled to the base 702 below the foam block 760 for pivoting movement between use and storage positions.
  • the shell 756 and the foam block 760 are made from transparent material, such as clear polycarbonate material, to improve the visibility of a patient's face.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Neurosurgery (AREA)
  • Neurology (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Prostheses (AREA)

Claims (28)

  1. Vorrichtung zur Befestigung an einem Patientenunterstützungsrahmen zum Unterstützen des Kopfes eines Patienten, der während einer Operation in einer Bauchlage auf dem Rahmen liegt, wobei die Vorrichtung eine Basis (110, 452, 552, 702), die ausgebildet ist, um an dem Rahmen angebracht zu werden, einen Pfosten (112, 454, 554, 704), der an die Basis (110, 452, 552, 702) gekoppelt ist und sich davon nach oben erstreckt, eine Kopfstütze (114, 470, 472, 490, 560, 562) zum Unterstützen des Kopfes eines Patienten, der in einer Bauchlage auf dem Rahmen liegt, und ein verriegelbares Gelenk (456, 556) umfasst, das an den Pfosten (112, 454, 554, 704) gekoppelt ist und an die Kopfstütze (114, 470, 472, 490, 560, , 562) gekoppelt ist, um die Kopfstütze (114, 470, 472, 490, 560, 562) über der Basis (110, 452, 552, 702) anzuordnen,
    wobei das verriegelbare Gelenk (456, 556), wenn es verriegelt ist, die Bewegung der Kopfstütze (114, 470, 472, 490, 560, 562) in Bezug zum Pfosten (112, 454, 554, 704) um eine Vielzahl Achsen verhindert und das verriegelbare Gelenk (456, 556), wenn es nicht verriegelt ist, die Bewegung der Kopfstütze (114, 470, 472, 490, 560, 562) in Bezug zum Pfosten (112, 454, 554, 704) um die Vielzahl Achsen zulässt,
    dadurch gekennzeichnet, dass das verriegelbare Gelenk (456, 556), wenn es verriegelt ist, die Bewegung der Kopfstütze (114, 470, 472, 490, 560, 562) entlang des Pfostens (112, 454, 554, 704) verhindert, und wenn es nicht verriegelt ist, die Bewegung der Kopfstütze (114, 470, 472, 490, 560, 562) entlang des Pfostens (112, 454, 554, 704) zulässt, und dadurch, dass das verriegelbare Gelenk (456, 556) ein Gehäuse (232), das entlang des Pfostens (112, 454, 554, 704) beweglich ist, und einen Griff (284, 457, 576) einschließt, der an das Gehäuse (232) gekoppelt ist und ausgebildet ist, um das Gehäuse (232) in einer gewählten Längsposition entlang des Pfostens (112, 454, 554, 704) zu verriegeln und das verriegelbare Gelenk (456, 556) gegen eine Bewegung um die Vielzahl Achsen zu verriegeln, wobei der Griff (284, 457, 576) zwischen einer ersten Position, in der das verriegelbare Gelenk (456, 556) verriegelt ist, und einer zweiten Position beweglich ist, in der das verriegelbare Gelenk (456, 556) nicht verriegelt ist.
  2. Vorrichtung nach Anspruch 1, wobei mindestens die Basis (110, 452, 552, 702) und die Kopfstütze (114, 470, 472, 490, 560, 562) aus strahlendurchlässigem Material gebildet sind.
  3. Vorrichtung nach Anspruch 1 oder Anspruch 2, wobei der Griff (284, 457, 576) abnehmbar an das Gehäuse (232) gekoppelt ist.
  4. Vorrichtung nach Anspruch 3, wobei das verriegelbare Gelenk (116) ein Halteseil (286) zum Unterstützen des Griffs (284) einschließt, wenn der Griff (284) nicht an das Gehäuse (232) gekoppelt ist.
  5. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, wobei das verriegelbare Gelenk (456, 556) ein Kugelgelenk umfasst.
  6. Vorrichtung nacht irgendeinem der vorhergehenden Ansprüche, wobei das verriegelbare Gelenk (456) eine modulare Unterstützung (458) umfasst, die ausgebildet ist, um an jede von einer Vielzahl Kopfstützen gekoppelt zu sein.
  7. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, wobei die Basis (110, 452, 552, 702) ein Paar von sich in Längsrichtung erstreckenden und quer beabstandeten Seitenabschnitten (130, 132, 460, 570) und einen Querabschnitt (134, 462, 572) einschließt, der sich in Querrichtung zwischen den Seitenabschnitten (130, 132, 460, 570) erstreckt.
  8. Vorrichtung nach Anspruch 7, wobei die Seitenabschnitte (130, 132, 460, 570) einen Raum unterhalb der Kopfstütze (114, 470, 472, 490, 560, 562) definieren, der im Wesentlichen frei von irgendeiner Struktur ist, welche die Pflegekraft behindern würde, die über einen relativ uneingeschränkten Zugang zum Mund, zur Nase und zu den Augen eines Patienten verfügt, der in einer Bauchlage auf dem Rahmen liegt, wobei der Kopf des Patienten durch die Kopfstütze (114, 470, 472, 490, 560, 562) unterstützt wird.
  9. Vorrichtung nach Anspruch 7 oder Anspruch 8, die ferner einen Spiegel (122, 464, 724) umfasst, der an den Querabschnitt (134, 462, 572) unter der Kopfstütze (114, 470, 472, 490, 560, 562) zur Bewegung zwischen einer von dem Gesicht eines Patienten entfernten Lagerungsposition und einer dem Gesicht des Patienten benachbarten Verwendungsposition gekoppelt ist.
  10. Vorrichtung nach Anspruch 9, die einen Reibungsmechanismus (350) umfasst, der an den Spiegel (122) gekoppelt ist und an den Querabschnitt (134) der Basis (110) gekoppelt ist und betriebsfähig ist, um den Spiegel (122) in einer gewählten Winkelposition zu halten.
  11. Vorrichtung nach irgendeinem der Ansprüche 7 bis 10, wobei der Rahmen ein Paar von sich in Längsrichtung erstreckenden und quer beabstandeten Seitenschienen (40) einschließt und jeder der Seitenabschnitte (130, 132, 460, 570) der Basis (110, 452, 552, 702) ein nach unten offenes Profil (374, 466, 574, 768) zum Aufnehmen einer zugehörigen Seitenschiene einschließt.
  12. Vorrichtung nach Anspruch 11, die ferner mindestens eine Klemmvorrichtung (320, 322) umfasst, die an einen Seitenabschnitt (130, 132, 460, 570) der Basis gekoppelt ist und betriebsfähig ist, um den Seitenabschnitt an einer zugehörigen Seitenschiene des Rahmens zu befestigen.
  13. Vorrichtung nach Anspruch 11 oder Anspruch 12, wobei die Seitenschienen (40) einen allgemein rechteckigen Querschnitt aufweisen und die nach unten gerichteten Profile in Seitenabschnitten einen ergänzenden allgemein rechteckigen Querschnitt aufweisen.
  14. Vorrichtung nach irgendeinem der Ansprüche 7 bis 13, die ferner ein zweites verriegelbares Gelenk (118) umfasst, das an den Querabschnitt (134) gekoppelt ist und an den Pfosten (112) gekoppelt ist, wobei das zweite verriegelbare Gelenk (118), wenn es verriegelt ist, die seitliche Bewegung des Pfostens (112) entlang des Querabschnitts (134) verhindert, und das zweite verriegelbare Gelenk (134), wenn es nicht verriegelt ist, die seitliche Bewegung des Pfostens (112) entlang des Querabschnitts (134) zulässt.
  15. Vorrichtung nach Anspruch 14, wobei das zweite verriegelbare Gelenk (118) einen Anbaublock (360) einschließt, der ein nach unten gerichtetes Profil (374) aufweist, das bemessen ist, um den Querabschnitt (134) und einen Griff (362) aufzunehmen, der an den Anbaublock (360) gekoppelt ist und ausgebildet ist, um den Anbaublock (360) in einer gewählten Querposition entlang des Querabschnitts (134) zu verriegeln.
  16. Vorrichtung nach Anspruch 15, wobei der Griff (362) zwischen einer ersten Position, in der das verriegelbare zweite Gelenk (118) verriegelt ist, und einer zweiten Position beweglich ist, in der das zweite verriegelbare Gelenk (118) nicht verriegelt ist.
  17. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, wobei die Kopfstütze eine Schale (140) umfasst, die eine nach oben gerichtete konkave Innenfläche (142), die bemessen ist, um die Gesichtsstruktur eines Patienten, der in einer Bauchlage auf dem Rahmen ruht, aufzunehmen, und eine Kinnstütze (144) aufweist, die an ein Paar von seitlich beabstandeten Armen (146, 148) gekoppelt ist, die sich von einer nach unten gerichteten Fläche (150) der Schale nach außen erstrecken.
  18. Vorrichtung nach Anspruch 17, wobei die Schale (140) einen Ausschnitt (160) umfasst, der mit einer Öffnung (170) verbunden ist, die durch die Kinnstütze (144) und die seitlich beabstandeten Arme (146, 148) gebildet ist.
  19. Vorrichtung nach Anspruch 18, wobei der Ausschnitt (160) sich in einem Bereich befindet, der allgemein den Augen und der Nase eines Patienten entspricht, und die Öffnung (170) sich in einem Bereich befindet, der allgemein dem Mund eines Patienten entspricht.
  20. Vorrichtung nach Anspruch 19, wobei der Ausschnitt (160) einen allgemein ovalen ersten Abschnitt (164) und einen kurzen allgemein sanduhrförmigen zweiten Abschnitt (166) aufweist.
  21. Vorrichtung nach einem der Ansprüche 17 bis 20, wobei der Ausschnitt (160) und die Öffnung (170) ausgebildet sind um zuzulassen, dass einer oder mehrere Schläuche, beispielsweise ein Endotrachealschlauch, dort hindurch zur Nase und/oder zum Mund eines Patienten geführt wird/werden.
  22. Vorrichtung nach irgendeinem der Ansprüche 17 bis 21, wobei die Arme (146, 148) sich unter der nach oben gerichteten Fläche (142) der Schale (140) befinden, um einen Raum über den Armen (146, 148) zu definieren, durch den einer oder mehrere Schläuche zur Nase und/oder zum Mund eines Patienten geführt werden kann/können.
  23. Vorrichtung nach irgendeinem der Ansprüche 17 bis 22, wobei die Schale (140) aus einem Kunststoffmaterial geformt ist und wobei der Ausschnitt (160) einteilig damit geformt ist.
  24. Vorrichtung nach irgendeinem der Ansprüche 1 bis 16, wobei die Kopfstütze eine U-förmige Stirnstütze (470, 560) umfasst, die ausgebildet ist, um die Stirn eines Patienten zu unterstützen.
  25. Vorrichtung nach Anspruch 24, wobei die Stirnstütze an einen Unterstützungsarm (474, 558) gekoppelt ist, der sich von dem verriegelbaren Gelenk (456, 556) aus nach außen erstreckt.
  26. Vorrichtung nach Anspruch 25, die ferner ein Paar von quer beabstandeten Wangenkissen (472, 562) umfasst, die ausgebildet sind, um die Wangen eines Patienten zu unterstützen.
  27. Vorrichtung nach Anspruch 26, wobei die Wangenkissen (472) an den Unterstützungsarm (474) gekoppelt sind.
  28. Vorrichtung nach Anspruch 26, wobei die Wangenkissen (562) an die Stirnstütze (470) gekoppelt sind.
EP06740819.5A 2005-04-11 2006-04-11 Kopfstütze für wirbelsäulenoperationen Active EP1874253B1 (de)

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US67002705P 2005-04-11 2005-04-11
US67004005P 2005-04-11 2005-04-11
US67004105P 2005-04-11 2005-04-11
US11/229,759 US7520008B2 (en) 2004-11-10 2005-09-19 Surgical table extension
US72059805P 2005-09-26 2005-09-26
PCT/US2006/013346 WO2006110671A2 (en) 2005-04-11 2006-04-11 Head support apparatus for spinal surgery

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EP06740906.0A Active EP1874255B1 (de) 2005-04-11 2006-04-11 Körperstütze für wirbelsäulenoperationen
EP13193216.2A Active EP2722029B1 (de) 2005-04-11 2006-04-11 Kopfstützenvorrichtung für Wirbelsäulenoperationen
EP06740819.5A Active EP1874253B1 (de) 2005-04-11 2006-04-11 Kopfstütze für wirbelsäulenoperationen
EP06749705.7A Active EP1874256B1 (de) 2005-04-11 2006-04-11 Hilfsrahmen für wirbelsäulenoperationen
EP06740847.6A Active EP1874254B1 (de) 2005-04-11 2006-04-11 Akzessorische kontaktklemme mit riegelmechanismen
EP14155653.0A Withdrawn EP2774592A1 (de) 2005-04-11 2006-04-11 Körperstützvorrichtung für Wirbelsäulenoperationen

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EP06740847.6A Active EP1874254B1 (de) 2005-04-11 2006-04-11 Akzessorische kontaktklemme mit riegelmechanismen
EP14155653.0A Withdrawn EP2774592A1 (de) 2005-04-11 2006-04-11 Körperstützvorrichtung für Wirbelsäulenoperationen

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EP2722029A3 (de) 2014-07-02
WO2006110703A3 (en) 2007-11-22
EP1874255B1 (de) 2014-02-26
WO2006110671A2 (en) 2006-10-19
EP1874255A4 (de) 2012-09-19
EP1874254B1 (de) 2016-05-25
EP1874253A4 (de) 2012-09-19
WO2006110836A2 (en) 2006-10-19
WO2006110721A3 (en) 2007-11-15
EP2774592A1 (de) 2014-09-10
EP1874255A2 (de) 2008-01-09
WO2006110703A2 (en) 2006-10-19
EP1874254A4 (de) 2012-09-19
EP1874254A2 (de) 2008-01-09
EP1874256A4 (de) 2012-09-19
EP2722029A2 (de) 2014-04-23
WO2006110836A3 (en) 2007-11-01
EP1874256A2 (de) 2008-01-09
EP1874253A2 (de) 2008-01-09
WO2006110721A2 (en) 2006-10-19
WO2006110671A3 (en) 2007-12-21
EP1874256B1 (de) 2013-11-27
EP2722029B1 (de) 2017-06-21

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