21 results about "Lordosis" patented technology

To provide an ischial sitting cushion, when being used for ischial sitting, expected to have a positive effect on the trunk of a user, by preventing an increase in a hip joint flexion angle or accentuating the physiological lordosis of the lumbar spine due to a lumbar support part, and by allowing the user to maintain a neutral posture with the pelvis upright by appropriately activating the user's own muscles such as deep muscle groups of the trunk without excessively depending on a support for the lumbar part.SOLUTION: An ischial sitting cushion C1 formed of a material with a prescribed strength and resilience, includes: an inclined upper plate 1; a rear base part 11 that supports the inclined upper plate 1 at a rear portion in a prescribed inclined state together with a front portion of the inclined upper plate and whose upper surface inclined downward at a prescribed angle forward, supports a user's buttocks from behind; and ischial support parts 3 and 3a that are arranged side by side at a prescribed interval on the left and right sides, and have slits 30 and 30a penetrating in upper / lower surface direction at prescribed positions of the inclined upper plate 1 avoiding the rear base part 11, to form an outer shape into an elongated oval shape that is long in the left and right directions, with their connected except for a portion of the front part.SELECTED DRAWING: Figure 1

A spinal implant device for placement between vertebral bodies includes a housing, at least one screw member in the housing, and at least one drive shaft operably engageable with the screw member. The housing includes a first shell member and a second shell member. At least the first shell member has step tracking comprising a plurality of individual riser members for receiving the at least one screw member. The height of the plurality of individual riser members may change along the step tracking. The drive shaft may be operable to rotate the at least one screw member, causing the at least one screw member to move on the plurality of individual riser members. The at least one screw member comprises an external helical thread having a thickness configured to fit in the gaps between adjacent individual riser members, and is engageable with the first and second shell members, whereby the first and second shell members move relative to each other in response to the rotation of the at least one screw member to effect an expansion of the housing or a contraction of the housing from the expansion by reversing the rotation of the at least one screw member.

The present disclosure provides adjustable spinal devices, instruments for implanting the spinal devices, methods for adjusting the height and lordosis angles of the spinal devices and methods for implanting such devices. An adjustable spinal fusion device includes an upper plate component having an outer surface for placement against an endplate of a vertebral body and a lower plate component having an outer surface for placement against an endplate of a vertebral body. The device further includes a first translation member configured to move longitudinally relative to the upper and lower plates to adjust a distance between the upper and lower plates and a second translation member configured to move longitudinally relative to the upper and lower plates to adjust an angle between the upper and lower plates.

The embodiments provide various interbody fusion spacers, or cages, for insertion between adjacent vertebrae. The cages may have integrated ratchet assemblies that allow the cage to change size and angle as needed, with little effort. The cages may have a first, insertion configuration characterized by a reduced size to facilitate insertion through a narrow access passage and into the intervertebral space. The cages may be inserted in a first, reduced size and then expanded to a second, larger size once implanted. In their second configuration, the cages are able to maintain the proper disc height and stabilize the spine by restoring sagittal balance and alignment. Additionally, the intervertebral cages are configured to be able to adjust the angle of lordosis, and can accommodate larger lordotic angles in their second, expanded configuration. Further, these cages may promote fusion to further enhance spine stability by immobilizing the adjacent vertebral bodies.

An expandable interbody fusion device and an associated instrument for inserting the device into an intervertebral disc space, expanding the device and for use in delivering graft material into the device once expanded in the disc space. The device is small enough to fit through Kambin's triangle yet is capable of expanding both in the vertical direction to accommodate spinal lordosis and in the lateral direction to provide sufficient structural support for opposing vertebral bodies laterally within the disc space. A process of forming textured top and bottom surfaces of the device by initially laser ablating each surface with a nano-second pulsed laser followed by laser ablating those surfaces with a femto-second pulsed laser.

The present disclosure provides adjustable spinal devices, instruments for deploying the spinal devices, methods for adjusting the height and / or lordosis angles of the spinal devices, and methods for implanting such devices. An adjustable spinal fusion device includes an upper plate having an outer surface for placement against a first vertebral body and a lower plate having an outer surface for placement against a second vertebral body. The device further includes a translation member configured to move longitudinally relative to the upper and lower plates to adjust an angle between the upper and lower plates and a locking member coupled to the translation member. The locking member is movable between an unlocked position, wherein the translation member is capable of moving in the longitudinal direction, and a locked position, wherein the translation member is inhibited from moving in the longitudinal direction.

An expandable lateral lumbar interbody spacer for placement between adjacent vertebrae configured to have a collapsed state suitable for insertion into an intervertebral space between a pair of adjacent vertebrae, and an expanded state that includes lordosis change during vertical expansion.

An expandable interbody spacer that is delivered in the anterior approach with adjustable height and end plate angulation (lordosis). The expandable interbody spacer is configured to have an initial collapsed state having a first height suitable for being inserted into an intervertebral space defined by a pair of adjacent vertebrae, and an expanded state having a second height that is greater than the first height. The expandable interbody spacer may be expanded from the initial collapsed state to the expanded state in-situ. The expanded state increases the distance between the adjacent vertebrae and provides support to the adjacent vertebrae while bone fusion occurs and also provides rigid support between the adjacent vertebrae that withstands compressive forces.

An expandable fusion device may include a first endplate and a second endplate. The expandable fusion device may also include first and second ramps configured to mate with both the first and second endplates. An inserter instrument includes an outer shaft having a bore extending longitudinally therethrough and an inner shaft extending through the bore in the outer shaft. The outer shaft is configured to engage the first or second opening in the second ramp, and the inner shaft is configured to engage the corresponding first or second opening in the first ramp to control implant height and / or lordotic angle.

The present disclosure provides adjustable spinal devices, instruments for deploying the spinal devices, methods for adjusting the height and / or lordosis angles of the spinal devices, and methods for implanting such devices. An adjustable spinal fusion device includes an upper plate having an outer surface for placement against a first vertebral body and a lower plate having an outer surface for placement against a second vertebral body. The device further includes a translation member configured to move longitudinally relative to the upper and lower plates to adjust an angle between the upper and lower plates and a locking member coupled to the translation member. The locking member is movable between an unlocked position, wherein the translation member is capable of moving in the longitudinal direction, and a locked position, wherein the translation member is inhibited from moving in the longitudinal direction.

According to the user cervical vertebra and lumbar vertebra health management system and method, RGB-D image (vision) and Bluetooth assisted positioning (hardware) are combined, and the 3D coordinate precision of spine key points is improved; quantitative calculation of spine physiological parameters (such as a Cobb angle and a lobular / lobular angle) is introduced, and the orthopedic medical standard is met; a standard detection action is displayed through AR animation, the posture of a user is dynamically corrected, and the data acquisition quality is ensured; algorithms such as dynamic time warping (DTW) are adopted, the matching degree of user actions and standard actions is evaluated, and closed-loop optimization of'detection-guiding-re-detection 'is achieved. Visual report display can be carried out on cervical vertebra and lumbar vertebra lateral bending of the user, a doctor can check historical data of the user through a background system to assist in making a treatment scheme, and intelligent management is achieved.

An expandable implant includes: a first endplate, a second endplate, a first translating member moveably coupled to a first actuator, and a second translating member moveably coupled to a second actuator. The first translating member may be configured to move independently from the second translating member, and the first translating member and the second translating member may be configured to change a spatial relationship between the first endplate and the second endplate. The change in spatial relationship may change a resulting height, length, width, angle of lordosis, or other dimension of the expandable implant.

The invention discloses a minimally invasive ultrasonic guided percutaneous rabbit intervertebral disc degeneration modeling mode, and relates to the technical field of ultrasonic modeling, and the method comprises the following steps: fixing an experimental rabbit on an operation table in a prostrate manner in an anesthetic state, and raising the abdomen to maintain lumbar lordosis; an ultrasonic probe is used for scanning along the longitudinal axis of the spine, and the L5 transverse process is recognized upwards from the highest point of the crista iliaca; positioning an L5 / 6 intervertebral disc gap in the cross section ultrasonic image by taking the identified L5 transverse process as an anatomical reference; a stable high-echo target spot formed by fascia is confirmed in the intersection area of the L5 transverse process head side and the superior articular process ventral side; marking a puncture needle insertion position on the skin surface according to the high-echo target spot; percutaneous puncture is conducted under ultrasonic real-time guidance along the marked position, the needle tip slides into the L5 / 6 intervertebral disc along the superior zygopophysis bone surface, and it is confirmed that the needle tip is located in the nucleus pulposus through viscous resistance and the unlocking hand feeling; the needle tip is controlled to stay in the intervertebral disc for 10 seconds, the puncture depth is kept at 5 mm, and mechanical disturbance is completed to induce the intervertebral disc to retreat.

The present disclosure provides adjustable spinal devices, instruments for deploying the spinal devices, methods for adjusting the height and / or lordosis angle of the spinal devices, and methods for implanting such devices. An adjustable spinal fusion device includes an upper plate having an outer surface for placement against a first vertebral body; and a lower plate having an outer surface for placement against the second vertebral body. The apparatus further includes a translating member configured to move longitudinally relative to the upper plate and the lower plate to adjust an angle between the upper plate and the lower plate; and a locking member coupled to the translating member. The locking member is movable between an unlocked position in which the translating member is movable in a longitudinal direction and a locked position in which the translating member is inhibited from moving in the longitudinal direction.

The present disclosure provides adjustable spinal devices, instruments for deploying spinal devices, methods for adjusting the height and / or lordosis angle of spinal devices, and methods for implanting such devices. The adjustable spinal fusion device includes an upper plate having an outer surface for positioning against a first vertebral body and a lower plate having an outer surface for positioning against a second vertebral body. The device further includes a translation member configured to move longitudinally relative to the upper and lower plates to adjust the angle between the upper and lower plates, and a locking member coupled to the translation member. The locking member is movable between an unlocked position, in which the translation member is permitted to move longitudinally, and a locked position, in which the translation member is restricted from moving longitudinally.

To provide an intervertebral fusion device with a suitable bone graft lumbar vertebra.SOLUTION: Intervertebral fusion devices and their methods of use are described herein. Also described herein are interbody device systems and methods of use thereof. In some embodiments, the disc space often needs to be distracted to restore the space between the vertebrae, both to increase the height of the intervertebral foramen and to create lordosis. The system can deliver sufficient force through the minimally invasive access port to enlarge the space for any connective tissue that may continue to connect the vertebrae. In addition, the bone distraction method minimizes point loading and prevents endplate fracture through better contact surface area.SELECTED DRAWING: Figure 9

A spinal implant for placement between vertebral bodies includes a first member for engaging one of the vertebral bodies, a second member for engaging an opposing one of the vertebral bodies, and at least one extendable support element for inducing movement of the entire first member away from the second member. The first member is connected to the second member such that the first member moves away from the second member by a larger distance at a first end of the implant than at a second end of the implant. A connecting member may connect the first and second members together at the second end of the implant. The connecting member may include one or more rotatable linkages, or the connecting member may be an extension of one of the first and second members slidably received within a track defined within the other of the first and second members.

The present disclosure provides adjustable spinal devices, instruments for implanting the spinal devices, methods for adjusting the height and lordosis angles of the spinal devices and methods for implanting such devices. An adjustable spinal fusion device includes an upper plate component having an outer surface for placement against an endplate of a vertebral body and a lower plate component having an outer surface for placement against an endplate of a vertebral body. The device further includes a first translation member configured to move longitudinally relative to the upper and lower plates to adjust a distance between the upper and lower plates and a second translation member configured to move longitudinally relative to the upper and lower plates to adjust an angle between the upper and lower plates.

The embodiments provide various interbody fusion spacers, or cages, for insertion between adjacent vertebrae. These intervertebral cages can restore and maintain intervertebral height of the spinal segment to be treated, and stabilize the spine by restoring sagittal balance and alignment. The cages may have a first, insertion configuration characterized by a reduced size at each of their insertion ends to facilitate insertion through a narrow access passage and into the intervertebral space. The cages may be expanded to a second, expanded size once implanted. In their second configuration, the cages are able to maintain the proper disc height and stabilize the spine by restoring sagittal balance and alignment. The intervertebral cages are configured to be able to adjust the angle of lordosis, and can accommodate larger lordotic angles in their second, expanded configuration. Further, these cages may promote fusion to further enhance spine stability by immobilizing the adjacent vertebral bodies.

An expandable lateral lumbar interbody spacer for placement between adjacent vertebrae configured to have a collapsed state suitable for insertion into an intervertebral space between a pair of adjacent vertebrae, and an expanded state that includes lordosis change during vertical expansion.