EP1874254A2 - Akzessorische kontaktklemme mit riegelmechanismen - Google Patents

Akzessorische kontaktklemme mit riegelmechanismen

Info

Publication number
EP1874254A2
EP1874254A2 EP06740847A EP06740847A EP1874254A2 EP 1874254 A2 EP1874254 A2 EP 1874254A2 EP 06740847 A EP06740847 A EP 06740847A EP 06740847 A EP06740847 A EP 06740847A EP 1874254 A2 EP1874254 A2 EP 1874254A2
Authority
EP
European Patent Office
Prior art keywords
jaw
clamp
rail
latch
resilient member
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.)
Granted
Application number
EP06740847A
Other languages
English (en)
French (fr)
Other versions
EP1874254B1 (de
EP1874254A4 (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
Publication of EP1874254A2 publication Critical patent/EP1874254A2/de
Publication of EP1874254A4 publication Critical patent/EP1874254A4/de
Application granted granted Critical
Publication of EP1874254B1 publication Critical patent/EP1874254B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 relates to clamps that attach to rails, and particularly to clamps that attach to accessory rails of surgical tables to support accessories used during surgical procedures. More particularly, the present disclosure relates to rail clamps having movable jaws that permit the clamps to couple to accessory rails without having to slide the clamp onto the rail from an end of the rail. Accessory rail clamps to attach accessories, such as leg stirrups and arm boards, to accessory rails of surgical tables are known. See, for example, U.S. Pat. No. 6,622,980.
  • accessory rails of surgical tables are typically made of metal, such as stainless steel, and because it is desirable for tables used in orthopedic procedures to be substantially radiolucent so that x-ray images and fluoroscopic images of patients may be taken during surgical procedures, most Jackson tables do not have standard-size accessory rails.
  • the present invention comprises a clamp having one or more of the features listed in the appended claims, or one or more of following features or combinations thereof, which alone or in any combination may comprise patentable subject matter:
  • a clamp is provided for securing an accessory, such as a head support apparatus, to a rail of a patient support apparatus, such as a spinal surgery extension.
  • the clamp may comprise a first or fixed jaw adapted to be placed on the rail, a second or movable j aw coupled to the first j aw for movement between an open position and a closed position, a resilient member that is forced against the rail when the second jaw is moved to the closed position to inhibit the movement of the clamp along the rail, and a latch coupled to the second jaw and movable relative to the second jaw between a latched position in which the second jaw is latched in the closed position relative to the first jaw and an unlatched position in which the second jaw is movable between the open and closed positions.
  • the first jaw is integrally formed with an associated accessory.
  • the first jaw may have an aperture in which the resilient member is received.
  • the first jaw may be configured to hook onto a first portion of the rail and the second jaw may be configured to hook onto a second portion of the rail when in the closed position.
  • the second jaw may be coupled to the first jaw for pivoting movement about an axis that is generally parallel to the rail.
  • the latch may be coupled to the second jaw for pivoting movement about an axis that is generally parallel to the rail.
  • the latch may be biased toward the latched position by a spring.
  • the spring may be received in an aperture in the second jaw.
  • the latch may have a protruding portion and the first jaw may have a recess in which the protruding portion of the latch is received when the second jaw is in the closed position and the latch is in the latched position.
  • the first jaw, the second jaw, the resilient member, and the latch are each made from a radiolucent material.
  • the clamp may further comprise a disk that is secured to the resilient member and that is made from a material that is harder than the resilient member.
  • the second jaw may contact the disk when moving from the first position to the second position.
  • the resilient member may be received in an aperture in the second jaw and at least a portion of the disk may be situated outside the aperture on one side of the first jaw. At least portion of the resilient member may be situated outside the aperture on an opposite side of the first jaw.
  • the aperture and the resilient member may each have a stepped configuration to prevent the resilient member and disk from falling out of the aperture in a first direction.
  • a portion of the second jaw may overlap the disk to prevent the resilient member and jaw from falling out of the aperture in a second direction.
  • the rail to which the clamp couples may be quadrilateral in cross section having a top, bottom, and opposite sides.
  • the first jaw may be configured to overlap at least a portion of the top and opposite sides of the rail and the second jaw may be configured to overlap at least a portion of the top, the bottom, and one of the sides of the rail when in the second position.
  • the latch may be coupled to the first jaw so as to pivot downwardly when moving form the latched position to the unlatched position and the first jaw may be coupled to the second jaw so as to pivot upwardly when pivoting between the second position and the first position.
  • the second jaw may have a cutout in which at least a portion of the latch is received.
  • the second jaw may have an arm on each side of the cutout and the latch may be coupled to the second jaw by a pivot pin having end regions received in bores formed in each of the arms of the second jaw and having a middle region received in a bore formed in the latch.
  • the first jaw may have a protrusion that substantially fills at least a portion of the cutout when the second jaw is in the second position.
  • the second jaw may have an arm on each side of the cutout and the second jaw is coupled to the first jaw by a pivot pin having end regions received in bores formed in each of the arms of the second jaw and having a middle region received in a bore formed in the protrusion of the first jaw.
  • Fig. 1 is a perspective view of a spinal surgery extension coupled to a surgical table showing a plurality of patient support accessories having associated clamps exploded away from the spinal surgery extension
  • Fig. 2 is an exploded perspective view of a clamp showing a first jaw, a second jaw, a pivot pin for pivotably coupling the second jaw to the first jaw, a pair of urethane friction buttons, a latch, a pivot pin for pivotably coupling the latch to the second jaw, and a spring for biasing the latch toward a latched position
  • Fig. 3 is a cross sectional view of the clamp through a urethane friction button with the second j aw of the clamp in an open position
  • Fig. 4 is a cross sectional view of the clamp through a urethane friction button with the second jaw of the clamp in a closed position
  • Fig. 5 is a cross sectional view of the clamp through the latch with the second jaw of the clamp in the closed position and the latch biased toward a latched position by a spring
  • Fig. 6 is a cross sectional view of the clamp through the latch with the second jaw of the clamp in the closed position and the latch pivoted to an unlatched position.
  • 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.
  • Each deck section 30, 32, 34 includes two accessory rails 40 on opposite sides thereof.
  • the deck 28 is pivotable about a transverse axis between Trendelenberg and reverse Trendelenberg positions.
  • the deck 28 is pivotable about a longitudinal axis.
  • 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 50 by a universal joint 58 and a lower end 60 of the telescopic support 52 is coupled to the base 54 by a ball joint 62.
  • the rectangular frame 50 includes left and right longitudinally-extending transversely-spaced side rails 70, 72 and head and foot end cross rails 74, 76 extending transversely between the rails 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 universal joint 58.
  • Two pivot shafts 78 extend outwardly from the 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 relative to the
  • the rails 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 rails 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, 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.
  • Frame member 74 and corner connectors 77 which interconnect member 76 with members 70, 72 and from which shafts 78 extend are made of a metal in the illustrative embodiment.
  • 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-apart 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 96 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 an amount that permits pivot shafts 78 to be received by 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 for transport.
  • a plurality of accessories 86 for supporting a patient on the frame 650 are adapted to be coupled to the longitudinally-extending rails 70, 72 of the frame 50 by associated clamps 120.
  • Illustrative examples of such accessories includes a head support apparatus 100, a panel 102 which may support a mattress pad, a body support apparatus 104, and an arm support apparatus 106.
  • Other accessories may be coupled to the rails 70, 72 of the frame 50 by associated clamps 120.
  • the head support apparatus 100 is described in further detail in PCT International Publication No. (attorney docket 7175-79620) entitled “Head Support Apparatus for Spinal Surgery” which is hereby incorporated by reference herein.
  • the body support apparatus 104, as well as other body support apparatuses which are coupleable to frame members 70, 72, are described in further detail in PCT International Publication No. (attorney docket 7175-79622), entitled “Body Support Apparatus for Spinal Surgery” which is hereby incorporated by reference herein.
  • each clamp 120 includes a first or fixed jaw
  • the first jaw 122 which is integrated into or otherwise coupled to the patient support accessories 100, 102, 104, 106, is adapted to be placed on an associated rail 70, 72 of the frame 50.
  • at least the jaws 122, 124 are made from a radiolucent material, such as an acrylonitrile butadiene styrene resin (ABS) material, an acetal resin material such as DELRHSf® material, or the like.
  • the finger latch 128 may be made from polyethylene.
  • various portions of clamp 120 may be made from other radiolucent materials such as polyester, polyurethane, polyethylene, ultra-high-molecular-weight (UHMW) polyethylene, or other resin based materials.
  • the jaws 122, 124, the resilient member 126, and the latch 128 are each made from a radiolucent material.
  • the first jaw 122 is integrally molded with the associated accessory 100, 102, 104, 106. In other embodiments, the first jaw 122 maybe separately formed, and coupled to the associated accessory 100, 102, 104, 106 by suitable fasteners, such as pins, screws, nut and bolt combinations, or the like.
  • the first jaw 122 has a U-shaped body 150 having inner and outer downwardly-extending leg portions 152, 154 and a bight portion 156 extending transversely between the inner and outer downwardly-extending leg portions 152, 154.
  • the body portions 152, 152, 156 define a downwardly-opening channel 158 for receiving a portion of the rail 70, 72.
  • the outer leg portion 154 is shorter than the inner leg portion 152.
  • the outer leg portion 154 has a step portion 160 disposed between two longitudinally-spaced outwardly-opening recessed portions 162, 164. As shown in Fig.
  • the downwardly- facing surface 166 of the outer leg portion 154 defines a downwardly-opening recess 168.
  • the recess 168 has an outwardly-facing surface 167 and an inwardly-facing surface 169.
  • the bight portion 156 has a step portion 170 disposed between two longitudinally-spaced upwardly-opening recessed portions 172, 174.
  • the second jaw 124 includes a U-shaped body 180 having upper and lower inwardly-extending arm portions 182, 184 and a bight portion 186 extending generally vertically between the upper and lower inwardly- extending arm portions 182, 184.
  • the body portions 182, 182, 186 define an inwardly-opening channel 188 for receiving a portion of the rail 70, 72.
  • the upper arm portion 182 has a cutout 190 disposed between two longitudinally-spaced step portions 192, 194.
  • the bight portion 186 has a cutout 200 disposed between two longitudinally-spaced step portions 202, 204.
  • the cutouts 190, 200 in the portions 182, 186 of the second jaw 124 are in communication with each other.
  • the lower portions of the step portions 202, 204 of the bight portion 186 are more thick than the associated upper portions to create two inwardly-extending ledge portions 212, 214.
  • the inwardly-extending arm portion 184 is formed to include a grip portion 216 to allow a user to pivot the second jaw 124 to the open position after releasing the finger latch 128.
  • the second jaw 124 is coupled to the first jaw 122 for pivoting movement about a longitudinally-extending pivot pin 220 between a first unlocked or open position spaced from the first jaw 122 as shown in Fig. 3 and a second locked or closed position adjacent the first jaw 122 as shown in Fig. 5.
  • the pivot pin 220 extends through a bore 222 in the step portion 192 of the second jaw 124, through a bore 224 in the step portion 170 of the first jaw 122, and through a bore 226 in the step portion 194 of the second jaw 124.
  • the bores 222, 224, 226 are coaxially aligned with the pivot pin 220.
  • set screws similar to the set screws 288, are threaded into the bores 222, 226 in the step portions 192, 194 so that outer surfaces of the set screws are flush with outer surfaces of the respective step portions 192, 194. These set screws retain pin 220 within bores 222, 224, 226.
  • the associated rail 70, 72 of the frame 50 is captured between the bight portion 156 of the first jaw 122, the downwardly-extending leg portions 152, 154 of the first jaw 122, the step portions 202, 204 of the second jaw 124, and the inwardly-extending arm portion 184 of the second jaw 124.
  • the jaws 122, 124 are dimensioned so that the outer surfaces of the jaws 122, 124 are flush with each other when the second jaw 124 is in the closed position as shown in Fig. 5.
  • the second jaw 124 when the second jaw 124 is in the closed position, (1) the step portion 160 of the first jaw 122 is received in the cutout 200 in the second jaw 124, (2) the step portion 170 of the first jaw 122 is received in the cutout 190 in the second jaw 124, (3) the step portions 192, 194 of the second jaw 124 are received in the associated recessed portions 172, 174 in the first jaw 122, (4) the step portions 202, 204 of the second jaw 124 are received in the associated recessed portions 162, 164 in the first jaw 122, and (5) the ledge portions 212, 214 of the second jaw 124 are wedged underneath the downwardly- facing surface 166 of the outer leg portion 154 as shown, for example, in Fig. 4.
  • the resilient member 126 comprises a pair of urethane friction buttons 240, 242.
  • Discs 244, 246 made from relatively hard material are secured to the top surfaces of the associated friction buttons 240, 242.
  • the discs 244, 246 are secured to the friction buttons 240, 242 by a drop of Loctite ® 416 adhesive.
  • the friction buttons 240, 242, with the discs 244, 246 secured thereto, are received in respective openings 248, 250 in the bight portion 156 of the first jaw 122.
  • the friction buttons 240, 242 each comprise a large diameter head portion 260, a small diameter body portion 262, and an annular seat portion 264 at the juncture of the large and small diameter portions 260, 262.
  • the openings 248, 250 each have a large diameter bore 270, a small diameter bore 272, and an annular seat portion 274 at the juncture of the large and small diameter bores 270, 272.
  • the seat portions 264 of the friction buttons 240, 242 are configured to engage the seat portions 274 of the openings 248, 250 to prevent the friction buttons 240, 242 from falling downwardly through the openings 248, 250 when the friction buttons 240, 242 are not supported by the associated rail 70, 72 and the clamp 120 is the orientation shown in Figs. 3 and 4.
  • the step portions 192, 194 of the second jaw 124 in the regions adjacent pin 220 prevent the friction buttons 240, 242 from falling out of the openings 248, 250 when the clamp 120 is turned upside down.
  • the friction buttons 240, 242 and the associated discs 244, 246 are dimensioned such that, when the friction buttons 240, 242 are supported by the associated rail 70, 72, the friction buttons 240, 242 protrude below the downwardly- facing surfaces of the bight portion 156 of the first jaw 122 as shown in Fig. 3, so that as the second jaw 124 pivots from the open position (Fig. 3) to the closed position (Fig. 4), the step portions 192, 194 of the second jaw 124 press down on the discs
  • the friction buttons 240, 242 to press down on the associated rail 70, 72 (Fig. 4) to inhibit movement of the clamp 120 along the associated rail 70, 72.
  • the discs 244, 246 and the head portions of the friction buttons 240, 242 have the same diameter.
  • the friction buttons 240, 242, the associated discs 244, 246, and the pivotable jaw 124 cooperate to form a lock mechanism for inhibiting movement of the clamp 120 along the associated rail 70, 72 when jaw 124 is in the closed position.
  • the finger latch 128 is coupled to the second jaw 124 for pivoting movement about a longitudinally-extending pivot pin 280 between a first or latched position, shown in Fig. 5, and a second or unlatched position, shown in Fig. 6.
  • the pivot pin 280 extends through a bore 282 in the ledge portion 212 of the second jaw 124, through a bore 284 in the latch 128, and through a bore 286 in the ledge portion 214 of the second jaw 124.
  • the bores 282, 284, 286 are coaxially aligned with the pivot pin 280.
  • set screws 288 are threaded into the openings 282, 286 in the ledge portions 212, 214 so that outer surfaces of the set screws 288 are flush with outer surfaces of the respective ledge portions 212, 214 of the second jaw 124.
  • Set screws 288 retain pin 280 in bores 282, 284, 286.
  • the inwardly-extending lower arm portion 184 of the second jaw 124 has a step portion 290 that extends upwardly into the cutout 200 in the bight portion 186 of the second jaw 124.
  • An outer portion 292 of the step portion 290 has a first width and an inner portion 294 of the step portion 290 has a second width that is less than the first width.
  • the latch 128 has a body portion 300, a pair of longitudinally-spaced leg portions 302 that extend downwardly from the body portion 300, a finger grip portion 304 that extends forwardly from the body portion 300, and a protruding portion 306 that extends upwardly from the body portion 300.
  • the protruding portion 306 has an outwardly-facing surface 308 and an inwardly- facing surface 310.
  • the downwardly- facing surface 166 of the step portion 160 of the first jaw 122 engages the inwardly-facing surface 310 of the protruding portion 306 of the latch 128 to initially cause the latch 128 to pivot downwardly.
  • the spring 320 causes the latch 128 to move upwardly so that a tip 312 of the protruding portion 306 of the latch 128 is received in the recess 168 (Fig. 6) in the downwardly-facing surface 166 of the step portion 160 of the first jaw 122 with the inwardly-facing surface 169 (Fig.
  • clamps 120 attach to and detach from rails 70, 72 in a quick and easy manner.
  • jaw 122 is placed on the one of rails 70, 72 and then jaw 124 is pivoted downwardly from the opened position to the closed position.
  • resilient members 240, 242 are automatically forced against the rail 70, 72 to prevent the clamp 120 from moving along the rail and latch 128 automatically snaps into its locked position to retain jaw 124 in the closed position.
  • latch 128 is pivoted to its unlatched position and jaw 124 is pivoted upwardly to its open position.
  • a user may move latch 128 downwardly to its unlatched position by pressing downwardly on portion 304 of latch 128 with his or her thumb and the user may move jaw 124 to its open position by pulling upwardly on portion 216 of jaw 124 with his or her fingers.

Landscapes

  • 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)
EP06740847.6A 2005-04-11 2006-04-11 Akzessorische kontaktklemme mit riegelmechanismen Active EP1874254B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
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/US2006/013441 WO2006110721A2 (en) 2005-04-11 2006-04-11 Accessory rail clamp with lacth and lock mechanisms

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EP1874254A2 true EP1874254A2 (de) 2008-01-09
EP1874254A4 EP1874254A4 (de) 2012-09-19
EP1874254B1 EP1874254B1 (de) 2016-05-25

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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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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

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Also Published As

Publication number Publication date
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
EP1874256A4 (de) 2012-09-19
EP2722029A2 (de) 2014-04-23
EP1874253B1 (de) 2013-11-20
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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