12 results about "Spinous process" patented technology

A spinous process clamp can include opposing arms, opposing gripping components, an adjustable spacing arrangement, and a coupling component. Each arm can have a top distal end, a midsection, and a bottom distal end. Each gripping component can be located proximate the bottom distal end of an arm and can be configured to grip a side of a spinous process. The arms can be pivotally coupled about their midsections to adjust the distance between the gripping components. The adjustable spacing arrangement can be coupled to the arms proximate their top distal ends and can be configured to adjust and maintain a pivoted position of the arms. The coupling component can be coupled to the top distal end of and arm and can be configured to rotationally couple the spinous process clamp to a separate surgical component, which can be a surgical fiducial marker positioner.

A system for restricting flexion of a spinal segment in a patient comprises a constraint device having a tether structure and a compliance member coupled with the tether structure. The tether structure is adapted to be coupled with a superior spinous process and a sacrum. The system also includes an anchor member that is anchored to the sacrum. The anchor member has an attachment feature that is adapted to couple with the constraint device.

The invention discloses an internal fixation device for total laminectomy, which belongs to the technical field of medical instruments for orthopedics department and comprises two bases, the two bases are an upper base and a lower base, the top end of the lower base is connected with the bottom end of the upper base through an elastic body, so that the upper base can deflect relative to the lower base, and the elastic body is arranged on the upper base; the axial distance between the upper base and the lower base can be changed; an upper spinous process connecting part is arranged at the top end of the upper base, a first fastening piece is arranged on the upper spinous process connecting part, and the first fastening piece extends in the left side direction and the right side direction of the upper base and is connected with the upper spinous process connecting part; by the adoption of the structure, vertebrae subjected to a total laminectomy and adjacent upper and lower vertebrae can be effectively connected, the stability of the spine is guaranteed while the activity degree of the spine is guaranteed, the vertebral plate connecting device adapts to the physiological structure of the vertebrae after the operation, and the vertebral plate connecting device has the advantages that the vertebral plate connecting device is simple in structure, convenient to use and high in practicability. And the damage to the surrounding physiological structure is small.

The invention relates to an orthopedic support comprising a spinous process support comprising a first portion configured to secure a first spinous process, a second portion configured to secure a second spinous process, and a third portion connected between the first portion and the second portion configured to support the first spinous process and the second spinous process; wherein the first part or the second part respectively comprises two sub-parts which are at least positioned on two sides of the first spinous process or the second spinous process. Adjacent spinous processes are respectively clamped and fixed by utilizing the structure of the device without fixing by bandages or bone nails, so that the stability and controllability of the movement of the lumbar vertebra structure can be achieved, the original movement of the lumbar vertebra is simulated, the dynamic movement of the spine is ensured, and the postoperative movement of a patient is more flexible.

The utility model discloses an imitated vertebra support waist fixator, which comprises a pull strap and a support component, the support component is fixedly arranged in the middle of the pull strap, and the support component comprises an imitated vertebra plate. According to the vertebra-imitating supporting waist fixator, the first lumbar vertebra to the fifth lumbar vertebra can be covered with the vertebra-imitating plate, the backwards-protruding part can contain the lumbar spinous processes in different motion or static states, lateral protrusion of the lumbar segment is limited while the normal physiological curvature of the lumbar vertebra is recovered, local compression on the vertebral body can be prevented, and the lumbar vertebra can be protected from being damaged. The hollow-out parts can correspond to spinous processes of the first lumbar vertebra to the fifth lumbar vertebra, compression or limitation on a bony mark of the spinous processes is prevented, the bionic vertebra plate is arranged to be of a curved surface trapezoid structure with the wide upper portion and the narrow lower portion, the stress area is increased on the basis of conforming to the lumbar vertebra physiological structure, and pressure is relieved for lumbar vertebra surrounding muscles such as multifidus muscles, longissimus pectoralis and lumbar iliac rib muscles.

A system may be configured to maintain spacing between a superior spinous process and a superior lamina, and an inferior spinous process and an inferior lamina, of adjacent vertebrae of a spine. The system may include an implant that includes two superior wings that extend superiorly from a proximal superior surface such that, in an implanted position, the superior spinous process may be engaged therebetween. The implant may also include two inferior wings that extend inferiorly from a proximal inferior surface such that, in the implanted position, the inferior spinous process may be engaged therebetween. The system may include a clamp that includes two superior arms configured to engage the two superior wings to prevent disengagement of the two superior wings from the superior spinous process and two inferior arms configured to engage the two inferior wings to prevent disengagement of the two inferior wings from the inferior spinous process.

The application relates to an orthopedic support, comprising a spinous process support and a lamina support connected with each other, wherein the spinous process support comprises a first surface away from the lamina support and a second surface connected with the lamina support, wherein the spinous process support comprises a first channel and a second channel for a bone nail to pass through the first surface. The spinous process support is fixed at the pedicle of the vertebra by the bone nail, the stability and controllability of the lumbar structure movement can be achieved, the original movement of the lumbar vertebra is simulated, the dynamic movement of the spine is ensured, and the postoperative movement of the patient is more flexible. The application also comprises an orthopedic support system.

This invention provides a posterior spinal lamina transverse expansion and fixation device, belonging to the field of medical device technology. The invention includes: an expansion body conforming to the physiological curvature of the posterior spine, divided into anterior and posterior wings, the front end of which can retract and automatically rebound after insertion, transversely expanding the lamina; and a snap-lock anti-displacement structure, formed by bending the wings, used to lock the expansion body after expansion, forming an irreversible fixation state and preventing retraction after expansion. This invention's expansion body with snap-lock anti-displacement structure, and overall adaptability to endoscopic channels smaller than 1cm, allows for transverse lamina expansion and fixation, implanted via a decompression groove using the spinous process as a positioning target. This device simultaneously addresses the mechanical requirements of high rigidity at the front end to maintain the expansion amplitude and high extensibility at the rear end for lamina fixation. It features a simple structure, low operational difficulty, no rebound after expansion, and is suitable for minimally invasive endoscopic procedures. It effectively reduces stress shielding, promotes bone healing, and reduces surgical trauma and complication risks.

An interspinous posterior device (IPD) is described. The IPD has a body and bone fixation elements on either side of the body, each of said bone fixation elements having a ratchet locking mechanism for fixing the body to successive spinous processes of a mammalian vertebra. Each of the bone fixation elements is independently adjustable by ratcheting it separately and independently of the other bone fixation elements. The body of the IPD has a dynamic configuration and a non-dynamic configuration, wherein the dynamic configuration allows for both extension and flexion of the successive spinous processes and the non-dynamic configuration prohibits extension of the successive spinous processes. The IPD also includes a removable extension restriction block, wherein the extension restriction block can optionally be inserted in the body to prohibit extension or can be removed from the body to allow extension.

This invention relates to an artificial vertebral lamina for posterior spinal reconstruction and its preparation method. The artificial vertebral lamina comprises: an integrally formed rectangular plate and a biomimetic spinous process; the biomimetic spinous process is disposed on one side of the rectangular plate, and a through groove is provided on the side of the rectangular plate away from the biomimetic spinous process, wherein the axis of the biomimetic spinous process, the axis of the through groove, and the center line of the rectangular plate overlap; the roughness of the side of the rectangular plate with the through groove is less than the roughness of the side with the biomimetic spinous process; a plurality of first through holes are symmetrically arranged on the rectangular plate on both sides of the biomimetic spinous process, and a plurality of second through holes are uniformly distributed on the biomimetic spinous process; the diameter of the plurality of first through holes is smaller than the diameter of the plurality of second through holes. This device has the advantages of simple structure, no need for assembly, and high stability of spinal reconstruction.

The application relates to a guide for placing a spinous process lamina articular process screw, which comprises a second arc-shaped rod, a first arc-shaped rod, a first positioning rod, an auxiliary rod and a sighting rod, a first connecting block is connected to the first arc-shaped rod, a second connecting block is slidably connected with the second arc-shaped rod, a third connecting block is slidably connected with the second arc-shaped rod, a fourth connecting block is slidably connected with the first arc-shaped rod, the end of the sighting rod towards the inner side of the second arc-shaped rod can intersect with the end of the auxiliary rod towards the inner side of the second arc-shaped rod at point a, the point a is the center of the second arc-shaped rod, the extension line of the central axis of the sighting rod intersects with the end of the first positioning rod towards the inner side of the second arc-shaped rod at point b, and the point b is the center of the first arc-shaped rod. The guide for placing the spinous process lamina articular process screw can accurately determine the piercing direction of the spinous process lamina articular process screw, the guide is not easy to swing during the operation process, the operation precision is high, the guide is easy to use for clinical doctors with insufficient experience, and the guide has extremely high clinical application value.