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US 5,417,570 AGranted
Dental anchor assembly
AssigneeZest Anchors, Inc.
InventorsMax Zuest, Paul Zuest
Life of this patent
Estimating the term…
Abstract
A multiple part anchor assembly is designed for attaching a dental appliance to a non-vital tooth root or an implant, and has a female part for attachment to a tooth root or implant, a male part or stud having a first end for releasable snap engagement in a socket in the female part with some relative movement permitted between the parts, a cap for securing in a recess in a dental appliance having a second socket, and the male part having a swivel joint at its opposite end for engagement in the second socket to secure the root or implant to the appliance, the hinge joint allowing hinging of the stud relative to the cap.
Claims38
An anchor assembly for attaching a dental appliance to a tooth root or tooth implant, comprising:
- a female socket member for insertion in a tooth root or implant, the socket member having a first socket;
- a male stud member having an elongate shaft with opposite first and second ends, a head at the first end of the shaft for releasable snap engagement in the first socket to allow relative movement between the stud member and first socket, and a swivel joint at the second end of the shaft;
- securing means for securing the swivel joint in a recess in a dental appliance, the swivel joint comprising means for permitting swivelling of the stud member relative to the dental appliance, the amount of motion permitted by the swivel joint being greater than that permitted between the head and the first socket;
- a cap for securing in a recess in a dental appliance, the cap having a second socket, the second socket and the swivel joint having interchangeable retainer means for retaining the swivel joint in the socket;
- and
- the interchangeable retainer means comprising snap lock formations for snap lock engagement of the swivel joint in the second socket.
3 more elements
An anchor assembly for attaching a dental appliance to a tooth root or tooth implant, comprising:
- a female socket member for insertion in a tooth root or implant, the socket member having a first socket;
- a male stud member having an elongate shaft with opposite first and second ends, a head at the first end of the shaft for releasable snap engagement in the first socket to allow relative movement between the stud member and first socket, and a swivel joint at the second end of the shaft;
- securing means for securing the swivel joint in a recess in a dental appliance, the swivel joint comprising means for permitting swivelling of the stud member relative to the dental appliance, the amount of motion permitted by the swivel joint being greater than that permitted between the head and first socket;
- a cap for securing in a recess in a dental appliance, the cap having a second socket, the second socket and the swivel joint having interchangeable retainer means for retaining the swivel joint in the socket;
- and
- the swivel joint comprises a two part hinge, a first hinge part comprising a head formed integrally at said second end of the pin member and a second hinge part being hingably engaged with said first hinge part and comprising means for snap engagement in said second socket.
3 more elements
An anchor assembly for attaching a dental appliance to a tooth root or tooth implant, comprising:
- a female socket member for insertion in a tooth root or implant, the socket member having a first socket;
- a male stud member having an elongate shaft with opposite first and second ends, a head at the first end of the shaft for releasable snap engagement in the first socket to allow relative movement between the stud member and first socket, and a swivel joint at the second end of the shaft;
- the male stud member being of resilient material and the female socket member being of metal;
- and
- securing means for securing the swivel joint in a recess in a dental appliance, the swivel joint comprising means for permitting swivelling of the stud member relative to the dental appliance, the amount of motion permitted by the swivel joint being greater than that permitted between the head and first socket.
2 more elements
An anchor assembly for attaching a dental appliance to a tooth root or tooth implant, comprising:
- a female socket member for insertion in a tooth root or implants the socket member having a first socket;
- a male stud member having an elongate shaft with opposite first and second ends, a head at the first end of the shaft for releasable snap engagement in the first socket to allow relative movement between the stud member and first socket, and a swivel joint at the second end of the shaft;
- securing means for securing the swivel joint in a recess in a dental appliance, the swivel joint comprising means for permitting swivelling of the stud member relative to the dental appliance, the amount of motion permitted by the swivel joint being greater than that permitted between the head and first socket;
- and
- said head having a cylindrical band portion and said first socket having a corresponding first annular portion for receiving said band portion, and a reduced diameter portion for releasably retaining said band portion in said socket.
2 more elements
An anchor assembly for attaching a dental appliance to a tooth root or tooth implant, comprising:
- a female socket member for insertion in a tooth root or implant, the socket member having a socket;
- a male stud member having an elongate shaft with opposite first and second ends, a head at the first end of the shaft for releasable snap engagement in the socket, and the second end comprising means for securing to a dental appliance;
- the head having an enlarged cylindrical band portion of larger diameter than the shaft;
- and
- the socket having an annular groove portion of dimensions substantially matching those of the cylindrical band portion for releasable snap engagement with said band portion.
2 more elements
An anchor assembly for attaching a dental appliance to a divergent implant extending at an angle to the desired path of insertion of the appliance, comprising:
- a base part having a cuff portion and a stem depending downwardly from the cuff portion, the stem having mating formations for mating engagement with a bore of a divergent implant, the cuff portion having a tapered socket having a predetermined machined taper;
- an angled abutment part having opposite first and second ends and a tapered outer surface portion extending from the first end of the part along at least part of the length of the part, the tapered portion having a predetermined machined taper matching that of the tapered socket for permanent locking engagement in said socket when the parts are forced together, the tapered portion having a central axis, and an angled socket extending inwardly from the second end of the abutment part at a predetermined angle to the central axis of said tapered portion;
- and
- a stud member for releasably securing the abutment part to a dental appliance, the stud member having a first head at one end for releasable snap engagement in said angled socket, and securing means at the opposite end of the stud for securing the stud member to a dental appliance.
1 more element
An anchor assembly for attaching a dental appliance to a divergent implant extending at an angle to a desired orientation axis of the implant, the assembly comprising:
- a base part for insertion in an implant, the base part having a tapered socket with a first longitudinal axis which will be aligned with the axis of the implant when installed, the socket having a predetermined machined taper;
- an abutment part having a first portion for attachment to a dental appliance and a second, tapered portion for insertion in said tapered socket, the tapered portion having a predetermined machined taper matching that of the socket for permanent locking engagement in said socket when said parts are forced together with the axis of said second portion coaxial with the axis of said socket;
- the first portion of the abutment part having a longitudinal axis extending at an angle to the axis of said second portion and socket, whereby said abutment part can be freely rotated about the axis of said socket when seated loosely in said socket to vary the orientation of said second portion relative to said socket;
- and
- said matching tapers comprising means for permanently locking the parts together when said abutment part is forced into said socket when a desired relative orientation between said second portion and socket is reached.
2 more elements
An anchor assembly for attaching a dental appliance to a divergent implant, comprising:
- a base part having securing means for releasably securing the base part to an implant extending at an angle to a desired orientation direction of a dental appliance to be secured to the implant, the base part having a socket;
- an angled abutment part having a first portion for engagement in said socket at a selected orientation relative to said base part, and a second portion extending at an angle to said first portion, the second portion having coupling means for coupling said abutment part to a dental appliance;
- securing means for securing said abutment part to said base part at a selected relative orientation between said parts;
- the socket having an inner end, and a tool-engaging bore projecting from the inner end of said socket, the tool-engaging bore having mating formations for mating engagement with a tool for securing the base part to an implant or releasing the base part from the implant;
- and
- the abutment part having a through bore aligned with said tool-engaging bore when the parts are secured together, whereby a tool can be inserted into said tool-engaging bore when said parts are secured together via said through bore.
3 more elements
A method of anchoring a dental appliance to a divergent implant, comprising the steps of:
- securing a stem portion of a base part into a bore of divergent implant, the base part having a tapered socket;
- placing a tapered portion of an angled abutment loosely into the tapered socket of the base part, the tapered portion and tapered socket having matching tapers;
- rotating the abutment relative to the socket until an angled socket in the abutment is oriented substantially in alignment with a desired path of insertion of a dental appliance;
- with the angled socket at the desired orientation, forcing the tapered portion of abutment into the tapered socket until the abutment is permanently locked into the socket;
- and
- releasably securing one end of a male part into the angled socket whereby a dental appliance attached to the other end of the male part is anchored to the implant.
3 more elements
Dependencies are inferred from the claim text.