48 results about "Vertebral Joint" patented technology

The present invention relates to a posterior vertebral joint prosthesis. The left or right posterior vertebral joint prosthesis of the invention presents a smooth bearing surface and said surface presents antero-posterior curvature.

A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and / or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

An implant which is particularly suitable for the repair and / or replacement of a skeletal joint, e.g., a vertebral joint, includes a unit of monolithic bone possessing at least one demineralized region exhibiting properties of flexibility and resilience, the demineralized region having diminished or insignificant capacity for promoting new bone growth.

A posterior vertebral joint prosthesis is provided so that the left or right posterior vertebral joint prosthesis (1, 2) presents a smooth bearing surface (11, 11a, 11b, 17, 17a, 17b) and and which surface presents antero-posterior curvature.

A prosthetic device can be used as a prosthesis following a discectomy or a corpectomy. The prosthetic device includes two endplates with staggered motion limiting members. The device can be configured to allow six degrees of motion when comparing one endplate relative to the other. The endplates can be configured to fix the joint by changing the body held within the device and by adding a locking plate and fasteners. A method teaches how to insert a device to an intervertebral space via an anterior incision.

A prosthetic device can be used as a prosthesis following a discectomy or a corpectomy. The prosthetic device includes two endplates with staggered motion limiting members. The device can be configured to allow six degrees of motion when comparing one endplate relative to the other. The endplates can be configured to fix the joint by changing the body held within the device and by adding a locking plate and fasteners. A method teaches how to insert a device to an intervertebral space via an anterior incision.

A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and / or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

The invention relates to an apparatus for the prevention and treatment of back pain, which is based on lumbar, dorsal and cervical strength training machines. The inventive apparatus comprises three vertebral supports which are disposed at a determined angle and which are used to strengthen and stretch (separation of the vertebral joints) the lumbar, dorsal and cervical areas of the back simultaneously in the appropriate movement plane. In order to prevent and treat back pain, once the back has been suitably positioned, all of the back must undergo simultaneous symmetrical strengthening. For said purpose, the apparatus consists of a vertical iron structure comprising three supports, which is perfectly articulated with a horizontal iron structure comprising a seat which can be used to perform seated exercises. According to the invention, the back is pushed against the cervical, dorsal and lumbar supports in order to produce symmetrical strengthening and stretching movements which can be adjusted to suit the individual using height and resistance control means, such as to have a decompressive effect on the vertebral column.

The invention discloses an assembled cervical vertebra and unciform joint fusion cage, belongs to the field of medical instruments, and provides an assembled cervical vertebra and unciform joint fusion cage which is more convenient to implant and install. The assembled cervical vertebra and unciform joint fusion cage comprises an intervertebral support body and unciform joint fusion components, wherein each unciform joint fusion component comprises a circle of cofferdam; a bone grafting cavity which is through up and down is formed in the cofferdam; the unciform joint fusion components are correspondingly arranged on the left side and the right side of the intervertebral support body; the assembled cervical vertebra and unciform joint fusion cage further comprises a connecting piece; the intervertebral support body and the unciform joint fusion components are arranged in a split manner; and the intervertebral support body and the unciform joint fusion components can be assembled and installed through the connecting piece. According to the assembled cervical vertebra and unciform joint fusion cage, through the arrangement of the split structure, the implantation and installation canbe carried out in sequence during implantation and installation, so that the problem that the implantation is difficult due to the fact that the implantation is carried out at the same time when theintegrated structure is arranged is avoided. In addition, through the arrangement of the deformable cofferdam, the implantation and installation operation can be facilitated, the fitting effect is improved, and meanwhile, the early osteogenic fusion is facilitated.

The invention relates to a flexible cross traction rehabilitation bed which comprises a trunk traction support, a head platform, an upper limb traction support, a trunk platform, a lower limb platform, a base and a main body supporting frame. The flexible cross traction rehabilitation bed can realize ten basic movements: trunk traction movement, head and neck flexion and extension movement, head and neck rotation movement, head and neck lateral flexion movement, cervical traction movement, upper limb traction movement, lower limb flexion and extension movement, lower limb rotation movement, lower limb lateral swing movement and lower limb traction movement. According to the flexible cross traction rehabilitation bed, cross traction of the human body can be achieved, adjustable dynamic traction force can be given to the spine of the human body in multiple directions and dimensions at the same time, the obvious pressure reduction effect on the spine and joints of the human body is achieved, damage repair under the gravity and impact force effects of the spine and the large joints is promoted, gravity damage factors can be effectively resisted, and spondylodynia and related symptoms caused by gravity injury factors are treated.

Devices and methods for improved controlled and targeted decortication of the bone of a spinal facet joint are provided. In one aspect, a decortication tool is provided. The decortication tool may include a shaft with proximal and distal end portions. A handle may be connected to the proximal end portion of the shaft. A decortication head may be coupled to the distal end portion of the shaft. In another aspect, a multi-use instrument for use in a spinal system is provided. The instrument may include a body including opposing first and second sides, and opposing first and second surfaces. A cavity may be defined in the body, the cavity being open to the second surface. The instrument may include a bar attached to the second side of the body. A portion of the bar may extend beyond the second surface of the body.

The invention relates to a device for assisting human cervical vertebra joint movement. The device comprises a nodding mechanism for making the neck achieve the nodding function, a swinging mechanismfor making the neck swing left and right and a rotating mechanism for making the neck achieve the rotating function, wherein the nodding mechanism is arranged on the inner side of the swinging mechanism, and the rotating mechanism is arranged on the lower portion of the swinging mechanism; the rotating mechanism comprises a rotating part fixedly arranged on a supporting ring, and the rotating partrotates through a first driving mechanism; the nodding mechanism comprises a height adjusting part hinged into the rotating part, a second driving mechanism is arranged on the height adjusting part,and the height adjusting part is driven by the second driving mechanism to make the head move up and down; the swinging mechanism comprises a swinging part hinged into the height adjusting part, a third driving mechanism is arranged on the swinging part, and the swinging part swings left and right through the third driving mechanism; and the hinged position of the height adjusting part and the hinged position of the swinging part are perpendicular to each other and are positioned on the same plane. The device for assisting the head of a patient suffering from the gradual freezing disease to achieve normal movement is provided.

The invention relates to a cervical vertebra anterolateral approach double-cortical fixed hook vertebral joint fusion cage, and belongs to the technical field of medical instruments. The fusion cage comprises a fusion cage body portion used for supporting a vertebra gap, the fusion cage body portion is of a long-strip-block-shaped structure, bone grafting cavities used for being filled with bone grafting materials are formed in two ends of the fusion cage body portion, the two bone grafting cavities correspond to the left portion of the vertebra gap and the right portion of the vertebra gap respectively, and a fixing structure used for being sequentially connected and fixed to a vertebral end plate cortical bone, a cancellous bone and a lateral cortical bone in a penetrating mode is arranged on a cavity wall of one of the bone grafting cavities. By means of the structure, the fusion cage can be suitable for being implanted into the vertebra gap from a cervical vertebra anterolateral approach, can be fixed in the cervical vertebra anterolateral direction through the fixing structure, and is fixed to the vertebral end plate cortical bone, the cancellous bone and the lateral corticalbone, and therefore, the fusion cage can be stably connected to the inside of the vertebra gap, and growth of the bone grafting materials is better facilitated.

The invention discloses a posterior lumbar surgery distraction device, which is used for a posterior lumbar surgery. The device comprises a track component, which is provided with a back plate, a rackand a slide rail in a length direction, wherein the rack and the slide rail are fixed with the back plate; a first distraction arm, which comprises a gear meshed with the rack and a transverse movingpart rotationally connected with the gear, wherein the gear is coaxially fixed with a manual wheel, and the transverse moving part is fixed with a first supporting rod and a sliding block which slides in the slide rail; and a second distraction arm, which is provided with a fixing block, wherein the fixing block is fixed with one end of a cross rod, and the fixing block is provided with a secondsupporting rod which is parallel to the first supporting rod. The posterior lumbar surgery distraction device can stably and accurately distract a vertebral joint and provide a stable operation spacefor medical personnel.

The invention relates to the technical field of surgical instruments, in particular to a bone joint, a vertebra joint assembly and a surgical instrument. The bone joint comprises a traction part, a first spherical surface and a second spherical surface, wherein a first through hole and a plurality of second through holes penetrating through the first spherical surface and the second spherical surface are formed in a traction part in an axial direction. The vertebra joint assembly comprises an end joint, a tail joint, a plurality of traction lines and a middle joint formed by sequentially connecting a plurality of joints, and the traction lines are fixedly connected with the end joint and sequentially penetrate through the middle joint and the tail joint. The vertebra joint assembly is applied to the surgical instrument, bending of the vertebra joint assembly in the surgical instrument can drive the tail end operation assembly to deflect in any direction and achieve free rotation, and the bending radius of the vertebra joint assembly is small, so that vertebra joint bending is more flexible; the focus of a patient can be observed more accurately through the endoscope, and finer surgical operation is achieved.

The present invention describes methods, devices and instruments for resurfacing or replacing facet joints, uncovertebral joints and costovertebral joints. The joints can be prepared by smoothing the articular surface on one side, by distracting the joint and by implant insertion. Implants can be stabilized against a first articular surface by creating a high level of conformance with said first articular surface, while smoothing the second articular surface with a surgical instrument with a smooth mating implant surface.

The invention discloses a human waist joint simulation system based on the series-parallel connection of pneumatic muscles and an air cylinder. The pneumatic muscles simulating the human muscles and the thin-walled air cylinder drive the ribs and the vertebrae to move, and the system has the function of completely simulating the movement of the human waist joints. The human waist joint simulationsystem is mainly composed of the pelvis, the ribs, the vertebra, the thin-walled air cylinder, the pneumatic muscles and the like, and the pneumatic muscles simulating the effects of the latissimus dorsi muscles, the obliquus externus abdominis muscles, the rectus abdominis muscles, the erector spinae muscles and the like and the thin-walled air cylinder drive the rib and vertebral joints to rotate around a vertical axis, a sagittal axis and a coronal axis and make linear movement in the three directions. The system is driven by the pneumatic muscles and the thin-walled air cylinder, has the advantages of compact structure, multiple degrees of freedom and good explosion-proof performance, and can be used for medical diagnosis, teaching demonstration, exhibition and the like.

A partial endoprosthesis device (11) for preserving the motion of a vertebral joint for implant into a spinal segment (10) comprising an articular portion (13) being elongated along a longitudinal axis (14) with a first face (15) and a second face (17) opposite to the first face (15), the first face comprising a central protrusion (18) having a height (H), with respect to the face, and a surface (16) of an osteointegrable material. The protrusion is configured so that, by implanting the device (11) with the articular portion (13) inserted between an upper articular facet (3') of a lower vertebra (10') and a corresponding lower articular facet (3'') of upper vertebra (10") adjacent to the lower vertebra, and with the first face (15) in contact with a first articular facet selected between the upper articular facet (3') and the lower articular facet (3''), and with the second face (17) in contact with a second articular facet respectively with the lower articular facet (3'') and with theupper articular facet (3'), it is obtained that the articular portion (13), with the first face (15), pushes against the first articular facet and finally becomes integral by osteointegration with the lower articular facet (3'') and, with the second face (17), slidingly engages with the lower articular facet (3').

The invention discloses a spine joint for artificial cervical disc replacement. The spine joint is characterized by comprising an upper vertebral joint movable plate (1) and a lower vertebral joint movable block (2). A middle elastic supporting component (3) is arranged between the upper vertebral joint movable plate (1) and the lower vertebral joint movable block (2); the lower end face of the upper vertebral joint movable plate (1) makes sliding contact with the upper end face of the middle elastic supporting component (3), the upper end face of the lower vertebral joint movable plate (2) makes sliding contact with the lower end face of the middle elastic supporting component (3), and the upper vertebral joint movable plate (1) and the lower vertebral joint movable plate (2) adopt the middle elastic supporting component (3) as supporting to relatively slide along the surface of the middle elastic supporting component (3); the upper surface of the upper vertebral joint movable plate (1) and the lower surface of the lower vertebral joint movable plate (2) are each provided with a plurality of top friction protrusions (11). According to the spine joint for artificial cervical disc replacement, the artificial spine supporting force is large, and the service life is long.

The invention discloses an assembled cervical interbody fusion cage, and belongs to the field of spine fusion instruments. The device comprises an H-shaped supporting piece used for providing a supporting function and side wall connecting pieces, wherein the H-shaped supporting piece comprises a first supporting rod, a second supporting rod and a longitudinal connecting rod, the two ends of the first supporting rod are each provided with a first connecting piece, and the two ends of the second supporting rod are each provided with a second connecting piece; the two ends of the longitudinal connecting rod are connected with the first supporting rod and the second supporting rod into a whole, and an I-shaped supporting piece formed by the first supporting rod, the longitudinal connecting rodand the second supporting rod is in an H-like shape. Practical application results show that on the basis of the new structural design, uncovertebral joint bone grafting can be achieved, the fusion rate can be effectively increased, the bone grafting side uncovertebral joint fusion rate is higher than the non-bone-grafting side uncovertebral joint fusion rate, so that remarkable progressive significance is achieved. Meanwhile, based on the improvement of the structure, corresponding choices can be made for different patients, so that the optimal clinical effect and the maximum fusion are ensured.

The invention relates to the technical field of interbody fusion cage medical instruments, in particular to a four-way expanding interbody fusion cage. The interbody fusion cage is characterized by being composed of a four-way expanding fusion mechanism and a driving spreading mechanism, the four-way expanding fusion mechanism is composed of an upper front spreading plate, a lower front spreadingplate, an upper rear spreading plate and a lower rear spreading plate, the upper front spreading plate is composed of a front side plate and an upper side plate, the lower front spreading plate is composed of a front sliding plate and a lower sliding plate, the upper rear spreading plate is composed of a rear sliding plate and an upper sliding plate, and the lower rear spreading plate is composedof a rear side plate and a lower side plate. The four-way expanding interbody fusion cage has the advantages that by utilizing the spreading force of the interbody fusion cage, the height and tensionof the vertebral joints are restored, the compression is relieved, the physiological curvature of the spine is restored, and the stable four-way expansion of the spine is ensured through the bone fusion of the interbody fusion cage.

The invention discloses a human waist joint simulation system based on the series-parallel connection of pneumatic muscles and an air cylinder. The pneumatic muscles simulating the human muscles and the thin-walled air cylinder drive the ribs and the vertebrae to move, and the system has the function of completely simulating the movement of the human waist joints. The human waist joint simulationsystem is mainly composed of the pelvis, the ribs, the vertebra, the thin-walled air cylinder, the pneumatic muscles and the like, and the pneumatic muscles simulating the effects of the latissimus dorsi muscles, the obliquus externus abdominis muscles, the rectus abdominis muscles, the erector spinae muscles and the like and the thin-walled air cylinder drive the rib and vertebral joints to rotate around a vertical axis, a sagittal axis and a coronal axis and make linear movement in the three directions. The system is driven by the pneumatic muscles and the thin-walled air cylinder, has the advantages of compact structure, multiple degrees of freedom and good explosion-proof performance, and can be used for medical diagnosis, teaching demonstration, exhibition and the like.

The invention relates to a device for assisting the movement of human cervical spine joints. It includes a nodding mechanism that enables the neck to nod, a swing mechanism that enables the neck to swing left and right, and a turning mechanism that enables the neck to turn; the nodding mechanism is arranged inside the swing mechanism, and the turning mechanism is arranged at the bottom of the swing mechanism; the turning mechanism It includes a rotating part fixed on the support ring, and the rotating part realizes rotation through the first driving mechanism; the nodding mechanism includes a height-adjusting part hingedly arranged in the rotating part, and a second driving mechanism is arranged on the height-adjusting part, which is driven by the second driving mechanism The height adjustment part makes the head move up and down; the swing mechanism includes a swing part hinged inside the height adjustment part, and a third drive mechanism is arranged on the swing part, through which the swing part swings left and right; The joints of the swing parts are perpendicular to each other and on the same plane. The invention provides a device for assisting the head of an ALS patient to realize normal movement.

A prosthetic device can be used as a prosthesis following a discectomy or a corpectomy. The prosthetic device includes two endplates with staggered motion limiting members. The device can be configured to allow six degrees of motion when comparing one endplate relative to the other. The endplates can be configured to fix the joint by changing the body held within the device and by adding a locking plate and fasteners. A method teaches how to insert a device to an intervertebral space via an anterior incision.

The invention provides a method for treating pain diseases in the department of orthopedics. The method comprises the following steps: 1) traditional Chinese medicine fumigation: putting medicinal components into a fumigation barrel, adding water, performing heating to boil, performing cooking for 10-20 minutes, cooling the cooked mixture to 40-45 DEG C, keeping the temperature, and fumigating anaffected part for 30-40 minutes by clinging the affected part to a fumigation opening of a fumigation bed by a patient; and 2) manual reset; instantly pulling cervical, thoracic and lumbar vertebrae to make intervertebral space be widened and intradiscal pressure be reduced to form the negative pressure attraction effect, using thumbs of two hands for exerting a certain force on vertebral joints on two sides and supraspinous ligaments, carrying out the same technique on a protrusion part of intervertebral disc for 3-5 times, and performing herniated macleos polposus retraction and correction to recover instable small joints caused by the protrusion of intervertebral disc. The method for treating pain diseases in the department of orthopedics can achieve the effects of activating blood circulation to dissipate stasis, warming and activating meridians, promoting qi circulation to relieve arthralgia, and eliminating dampness and relieving pain. Disease pains can be removed in cooperationwith the manual reset.

A partial endoprosthesis device preserves the motion of a vertebral joint for implant into a spinal segment and includes an articular portion having a thickness that increases in the direction of introduction between the articular facets. The articular portion is elongated along a longitudinal axis with a opposite first and second faces. The first face has a central protrusion that is configured so that, by implanting the device with the articular portion inserted between an upper articular facet of a lower vertebra and a corresponding lower articular facet of upper vertebra adjacent to the lower vertebra, and with the first face in contact with either the upper or lower articular facet, and with the second face in contact with the other articular facet, the articular portion, with the first face, pushes against the first articular facet and finally becomes integral by osteointegration with the lower articular facet.

The invention discloses an intervertebral securing device and an intervertebral securing system. The intervertebral securing device comprises a securing plate, wherein the securing plate is provided with a first end and a second end, a first through hole is formed in each of the first end and the second end, a straight pedicle screw penetrates through each first through hole, a second through hole is formed in at least one of the first end and the second end, and an oblique vertebral screw penetrates through each second through hole. According to the intervertebral securing device and an intervertebral securing system disclosed by the invention, two neighboring vertebral joints can be effectively connected and secured, the connection is reliable, and the structure is simple.