7 results about "Laminoplasty" patented technology

An implantable laminoplasty device is provided that can be used in minimally invasive surgery. The device includes a main housing with an inner housing slidably receivable by an outer housing. A gear is disposed in the main housing and engageable with a gear rack of the inner housing to adjust the length of the main housing. The gear defines an aperture configured to accept a tool to translate rotational movement into linear motion. A lock is slidably disposed in the main housing sized and configured to fix the length of the main housing when the desired length is achieved by slidable translation of the inner housing in the outer housing. The device also includes a laminar shelf portion and a lateral mass connection portion defining bone screws and both being hingedly connected to the main housing.

A laminoplasty plate (10) comprises: a first fixing part (1) and a second fixing part (2) respectively fixed to a first cutting end part and a second cutting end part of a vertebral arch; and a spacer part (3) extending between the first fixing part (1) and the second fixing part (2). The first fixing part (1) includes: a first engagement part (4) and a second engagement part (4) that are disposed at an interval from each other and are disposed respectively on the posterior side and the anterior side of the first cutting end part; and a connection part (6) that connects the first engagement part (4) and the second engagement part (5) so as to be displaceable in a direction approaching each other.

An implant is provided for connecting the vertebral arch plate with the epiphysis that has been separated from the lateral mass of the vertebra during the laminoplasty procedure. [Solution] The implant (10) has a first portion (20) configured to engage with the lateral mass (120). The first portion has a lateral opening (34) for receiving a fastener (36) for fixing it to the lateral mass. The implant has a second portion (60) configured to engage with the epiphysis (160). The second portion is connected to the first portion such that the second portion is rotatable relative to the first portion about a rotational axis. The second portion has a lateral opening for receiving a fastener. The implant is configured so that the first portion can be fixed to the lateral mass prior to the separation of the arch from the lateral mass.

The article to which the design relates is a spinal implant called a laminoplasty plate, which is used as a plate to fix the osteotomized vertebral arch during laminoplasty. The spinal implant is bent and deformed to fit the bone shape, and then inserted between the incised vertebral arches while fixing the upper and lower ends to the bone with screws. It has strength equal to or greater than that of the bone, and is designed to maintain the enlarged spinal canal until the bone in the bone groove (hinge) area heals.

The invention discloses a fusion cage selection method, a fusion cage, a device, a storage medium and electronic equipment. The method comprises the following steps: acquiring a cervical vertebra medical image of a target object; determining a first vertebral foramen area of the cervical vertebra of the target object before lesion and a second vertebral foramen area of the target object after lesion based on the cervical vertebra medical image; determining a target opening area of the vertebral hole based on the first vertebral hole area and the second vertebral hole area; fusion cage parameters are determined based on the target distraction area, a target fusion cage is determined from the multiple fusion cages based on the fusion cage parameters, and the target fusion cage is used for being supported between two vertebral plates of the cervical vertebra of the target object so as to expand the vertebral foramen area. By means of the fusion cage selection method and device, the problem that the accuracy of fusion cage selection is low due to the fact that the fusion cage needing to be used in posterior cervical single-side opening canalis vertebralis enlargement is selected according to artificial experience in the related technology is solved.

A laminoplasty implant system includes a spacer implant configured for insertion into an interlaminal space defined by a cut into a lamina of a vertebra. The spacer implant includes a first end and a second end, and a tunnel extending axially between the first end and the second end. The laminoplasty implant system also includes a single fastener implant configured for insertion through the tunnel when the spacer implant is inserted into the interlaminal space. The fastener implant includes a head and a fastener portion. The head is configured to abut against a portion of the spacer implant and to extend axially from the first end into the lamina of the vertebra. The fastener portion is configured to extend through the tunnel and to extend axially from the second end into a lateral mass of the vertebra.

The application discloses a selection method of a fusion device, the fusion device, a device, a storage medium and an electronic device. It relates to the field of medical instruments. The method comprises the following steps: acquiring a cervical vertebra medical image of a target object; determining a first foramen area of the cervical vertebra of the target object before a lesion and a second foramen area of the target object after the lesion based on the cervical vertebra medical image; determining a target distraction area of the foramen based on the first foramen area and the second foramen area; determining a fusion device parameter based on the target distraction area, and determining a target fusion device from a plurality of fusion devices based on the fusion device parameter, wherein the target fusion device is used to support between two vertebral plates of the cervical vertebra of the target object to expand the foramen area. Through the application, the problem that the related art relies on manual experience to select the fusion device required in unilateral open-door laminoplasty of the cervical vertebra is solved, and the accuracy of selecting the fusion device is low.