51 results about "Sacrum bone" patented technology

Methods are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. In one embodiment, a defect creation assembly is advanced from a posterior approach into the SI joint and configured to create pilot SI joint opening; portions of which being disposed in the sacrum and ilium bone structures. After the pilot SI joint opening is created, a prosthesis is press-fit into the pilot SI joint opening, wherein the pilot SI joint opening transitions to a larger post-prosthesis insertion SI joint opening and the prosthesis is securely engaged to the sacrum and ilium bone structures.

A sacroiliac fusion implant device assembly has an implant body and a pair of bone fasteners. The implant body has a distal end and a proximal end with a longitudinal axis extending between a center of the distal end and a center of the proximal end. The distal end has cutting edges configured to cut tissue as the implant is pressed into a joint between a sacrum and an ilium. The proximal end has two bone fastener receiving apertures, each configured to receive a bone fastener and the implant body has a pair of sidewalls connecting the distal and proximal ends. The pair of bone fasteners can be a pair of threaded fasteners, or a pair of spike fasteners or a combination of one threaded fastener and one spike fastener.

The invention discloses an improved wedging cage within the sacroiliac (SI) joint and fixation screw(s). The wedging cage is adapted to be positioned between the sacrum and the lilac bone (e.g., the sacroiliac joint), and the wedging cage is effective to receive one or more fixation or axial screws to fasten the wedging cage and secure the wedging cage to the adjacent pelvic bones to provide a combination effect of fusion and / or fixation. Accordingly, the improved fixation screw assemblies promote flexibility and adaptability due to the adjustable head being movable to a locked and unlocked position relative to the screw body when implanted onto a substrate.

A sacroiliac joint stabilization system may be configured to stabilize a sacroiliac joint. The sacroiliac joint stabilization system may include a fastener having a threaded portion, and an implant having a body including a body height and an aperture extending along the body height, a first wing, a second wing, a third wing, and a fourth wing. The first wing, the second wing, the third wing, and the fourth wing may be arranged relative to each other to define an X shape, the threaded portion may be configured to advance through the aperture and engage a sacrum and an ilium, the first wing and the second wing may be configured to be embedded in the sacrum, and the third wing and the fourth wing may be configured to be embedded in the ilium.

A drill-less method of stabilizing a sacroiliac joint using a multimodal abrading device to create a rich environment for bony fusion. The unique decortication instrument includes an integral slap hammer assembly joined with a rasp-box osteotome tooling head to simultaneously remove cartilage from the joint while preparing the sacrum and ilium down to bleeding bone. Subsequent to joint preparation, an implant with a large bone graft window may be implanted into the prepared SI joint through a specially designed access cannula.

The cam is fixedly mounted on the top of the movable frame, and a rotating ball is rotatably mounted on the inner wall of the movable frame. A pin is fixedly mounted on the inner wall of the rotating ball, and a pin is fixedly mounted on the inner wall of the rotating ball. The top of the side plate is evenly provided with a plurality of adjustment holes, and a gear is fixedly mounted on the top of the side plate, and a winding wheel is fixedly mounted on the top of the gear. The winding wheel and the gear are driven to rotate by rotating the protrusion, and the ball can be dragged by the pull rope to move the inner wall of the circular groove to release the lock of the slide bar. At the same time, the rotation of the gear can drive the slide bar to slide on the inner wall of the slide groove through the arc gear row, thereby realizing the adjustment of the position of the locking plate, and facilitating the convenient adjustment of the position of the locking plate to lock different positions after the bracket is positioned.

A system and method for fusing the sacroiliac joint is described herein. The system includes a first sacrum anchor and a first compression anchor for implantation through a bore in the iliac bone into engagement with the first sacrum anchor. The first sacrum anchor includes an external thread portion, and an internal channel defined by an inner surface. The inner surface includes an internal thread portion. The first compression anchor includes an outer thread portion along part of the shaft configured to engage the internal thread portion of the first sacrum anchor. Rotation of the first compression anchor draws the first compression anchor toward the first sacrum anchor when the outer thread portion of the first compression anchor is threadably engaged with the internal thread portion of the first sacrum anchor. This configuration allows a user to dial in the appropriate compression on the SI joint.

A sacroiliac fusion implant device assembly has an implant body with a sliding block and a pair of movable bone spikes. The distal end has a tapered end with an opening configured to receive a guide pin during insertion into a joint between a sacrum and an ilium, and the proximal end has a cannulated threaded post configured to receive a guide pin and to move a sliding block. The sliding block is movable from a retracted unlocked position and to a deployed locked position when moved toward the distal end as the threaded post is rotated clockwise. The bone spikes are movable from a retracted position in the implant body to an exposed deployed locked position by moving the sliding block which presses the spikes up and out of the retracted position extending the bone spikes into bone in the sacroiliac joint.

The utility model relates to a modularized soft mattress for supporting sacrum and relaxing lumbar vertebra. The modularized soft mattress comprises a quilting cloth cover and an inner cushion layer, the inner cushion layer material is formed by combining a plurality of modules, each module has different hardness, and the use position of each module can be freely adjusted; wherein one module is a sacrum module, the supporting strength of the sacrum module is obviously higher than that of other parts, and the sacrum module is formed by combining high-resilience sponge and two layers of hardened supporting sponge. According to the utility model, each module can be freely adjusted according to the height, spine length, weight and sleep hardness of a user; wherein the sacrum supporting module needs to be supported to the sacrum position of a user during use, and the sacrum supporting module is the hardest module in all the modules, so that the sacrum can be fully supported, at the moment, the pelvis of the user inclines backwards, the lumbar vertebra can be flatly placed on a mattress, meanwhile, the pressure of the lumbar vertebra is relieved, and the purposes of relaxing the lumbar vertebra and improving the comfort of the user are achieved. The waist discomfort is relieved.

The application discloses a pelvic tumor resection surgical incision construction system and a pelvic tumor whole piece resection system. When a tumor does not affect a Ⅳ area, a projection point of a iliac crest on a body surface is taken as a starting point, and a projection point on the body surface is extended in a pubis direction of the iliac bone. According to different extension points, a single smooth virtual incision path one is constructed by bending downward in a thigh direction. When the tumor affects the Ⅳ area and other areas, the virtual incision path is two independent and non-intersecting first incision paths and second incision paths. The first incision path is extended from a body surface projection point of a longitudinal axis of a vertebral body to a sacrum direction, and is an incision path that is inclined to a tumor side in a sacrum area. The second incision path is a line connecting a body back projection point of the iliac crest to a body front projection point, and is combined with a corresponding smooth virtual incision path one to construct a complete smooth virtual incision path two. Through the above-mentioned method, incision intersection can be effectively avoided, and the incision path is beneficial to blood supply, and the healing effect is ensured.

Methods are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. In one embodiment, a drill assembly is advanced from a posterior approach into the SI joint to create a pilot SI joint opening; portions of which being disposed in the sacrum and ilium bone structures. After the pilot SI joint opening is created, a SI joint prosthesis is inserted into the pilot SI joint opening, wherein the SI joint prosthesis is positioned in the dysfunctional SI joint at a distance of at least 3.0 mm away from the SI joint dorsal recess.

Provided is a mattress that enables promoting breathing in a supine position. The mattress includes: a pair of ilium support portions arranged below respective parts conforming to at least widthwise outer portions of iliac crests of a pair of ilia of a pelvis for individually supporting parts conforming to the pair of ilia from below; and a sacrum adaptation portion arranged between the pair of ilium support portions and located below a sacrum between the pair of ilia of the pelvis. The pair of ilium support portions and the sacrum adaptation portion have such a configuration that a body pressure onto the sacrum adaptation portion is lower than a body pressure onto the pair of ilium support portions.

Systems are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. The systems include a drill guide adapted to create a pilot SI joint opening in the dysfunctional SI joint through an incision comprising a length no greater than 3.0 cm; portions of the pilot SI joint opening being disposed in the sacrum and ilium bone structures. The drill guide includes a tri-mode fixation system adapted to position and stabilize the drill guide during creation of the pilot SI joint opening in the dysfunctional SI joint and delivery of the SI joint prosthesis therein. The systems also include a SI joint prosthesis configured to be inserted into the pilot SI joint opening of the dysfunctional SI joint, and a prosthesis deployment assembly configured to engage the SI joint prosthesis and advance the SI joint prosthesis into the dysfunctional SI joint.

This device provides a means of guiding the user's pelvis to a desired posture by applying force of the desired strength in the desired direction to the left and right hip bones. [Solution] The garment 1 comprises a main body 11 which is leggings worn by user X, a plurality of hook-and-loop fasteners 12 attached to a predetermined area of ​​the main body 11, a band 13 which is an elastic cord with one end attached to a predetermined area of ​​the main body 11, and a hook-and-loop fastener 14 attached to the inner surface of the other end of the band 13. If user X has a tendency for their left hip bone to rotate forward from a desired position, for example, they stretch the band 13 with one end attached to the area posterior to the sacrum of the main body 11, and connect the hook-and-loop fastener 14 on the back of the band 13 to the desired position of the hook-and-loop fastener 12 attached to the area between the left iliac crest and the left greater trochanter of the main body 11. As a result, user X's left hip bone is guided to rotate backward with a desired amount of tension.

To provide threaded sacroiliac joint stabilization (e.g., fusion, fixation) implants and methods of implantation and manufacture.SOLUTION: Some implants include a distal region 120 with threads 122a and 122b, a central region 140 optionally with the threads 122a and 122b, and a proximal region 160 optionally with the threads 122a and 122b. The distal, central, and proximal regions 120, 140 and 160 have lengths such that when the implant 100 is laterally implanted across a sacroiliac joint, the distal region 120 can be positioned in the sacrum, the central region 140 can be positioned across the sacroiliac joint, and the proximal region 160 can be positioned in the ilium.SELECTED DRAWING: Figure 1

A sacroiliac fusion implant device assembly has an implant body and a pair of bone fasteners. The implant body has a distal end and a proximal end with a longitudinal axis extending between a center of the distal end and a center of the proximal end. The distal end has cutting edges configured to cut tissue as the implant is pressed into a joint between a sacrum and an ilium. The proximal end has two bone fastener receiving apertures, each configured to receive a bone fastener and the implant body has a pair of sidewalls connecting the distal and proximal ends. The pair of bone fasteners can be a pair of threaded fasteners, or a pair of spike fasteners or a combination of one threaded fastener and one spike fastener.

The invention belongs to the field of auxiliary medical treatment, and provides a sacroiliac screw implantation point and channel determination method and system, and the method comprises the steps: constructing a bone structure three-dimensional model containing the sacrum and the ilium; in the three-dimensional model, based on the fracture type and the bone condition of the patient, an implantation point of a screw is selected in the sacrum S1 centrum trailing edge area, and the implantation point is located on the outer side of sacrum cortex and close to the sacroiliac joint trailing edge; in the three-dimensional model, a cross section containing the implantation point is selected as a plane where an implantation channel is located, and the cross section is an image plane perpendicular to the long axis of the body of the patient and serves as a space projection plane of the implantation channel; in the three-dimensional model, a screw path penetrating through the sacrum body or the sacroiliac joint area is constructed, the included angle between the implantation channel path and the coronal plane of the patient is measured, the included angle is used for controlling the front-back inclination degree of the screw implantation direction, and the implantation point, the cross section and the included angle jointly define a three-dimensional channel of the sacroiliac screw.

Systems are described for conducting minimally invasive medical interventions utilizing instruments and assemblies thereof to stabilize and / or fixate a dysfunctional sacroiliac (SI) joint. The systems include a drill guide adapted to create a pilot SI joint opening in the dysfunctional SI joint through an incision comprising a length no greater than 3.0 cm; portions of the pilot SI joint opening being disposed in the sacrum and ilium bone structures. The drill guide includes a tri-mode fixation system adapted to position and stabilize the drill guide during creation of the pilot SI joint opening in the dysfunctional SI joint and delivery of the SI joint prosthesis therein. The systems also include a SI joint prosthesis configured to be inserted into the pilot SI joint opening of the dysfunctional SI joint, and a prosthesis deployment assembly configured to engage the SI joint prosthesis and advance the SI joint prosthesis into the dysfunctional SI joint.

The present invention provides methods for treating lower back, hip, and / or sacral region pain in a subject, the methods comprising administering to the subject by one or more injections a composition comprising hyaluronic acid (HA) and a pharmaceutically acceptable carrier. The injections are made at the subject's iliac crest, posterior superior iliac spine, and / or soft tissue attachment points of the sacrum or in close proximity thereto.

A sacroiliac joint implant system includes a primary implant configured to be received in a sacroiliac joint of a patient and a secondary implant configured to couple with the primary implant. The primary implant includes a body extending from a proximal end to a distal end and a plurality of threads extending from the body. The secondary implant includes a first anchor configured to anchor within a sacrum of the patient and a second anchor configured to anchor within an ilium of the patient.

A method for facilitating stabilization of a sacroiliac joint is provided. The method includes surgical and stabilization techniques for implanting bone anchors or fasteners such as a first bone screw, a second bone screw, and third bone screw in a pelvis traversing portions of a coxal bone and a sacrum, and extending through or adjacent at least a portion of a corresponding sacroiliac joint. The bone anchors or fasteners such as the first bone screw, the second bone screw, and the third bone screw can be inserted at different angles and locations to form a lattice structure that serves in securing the position of a coxal bone and a sacrum relative to one another to facilitate stabilization across a corresponding sacroiliac joint.

A method and intraarticular spacer for stabilizing an ilium and a sacrum at a sacroiliac joint, the intraarticular spacer includes a body defining an exterior surface that includes at least one anchor adapted to engage the sacrum and the ilium, a proximal end smaller than a distal end, at least one aperture, and an exterior channel. The distal end includes a driver engagement. The anchor may include a thread on the exterior surface arranged longitudinally about a central axis of the body. The intraarticular spacer may include more than one prong adapted to engage the sacrum and ilium, a stabilizing material, and a central bore extending longitudinally about a central axis of the body, the central bore defining an interior surface and including an interior thread coupled to the interior surface.

The invention discloses a probe and method for probing a bony channel in sacroiliac screw implantation, and relates to the technical field of orthopedic surgical instruments, the probe comprises a hollow screw and a probe, the front end of the hollow screw is provided with a self-tapping part, the hollow screw is axially provided with a through hollow channel, and the hollow channel allows the probe to pass through; the probe comprises a rod body, a spherical head and a handle, and the spherical head is connected with the handle through the rod body. According to the hollow screw placement structure and method with the probe capable of feeding back the position of the bone channel in the sacrum, the spherical head of the probe can slide along the interior of the bone cortex of the sacrum after entering the sacrum, so that the situations that the bone channel of the hollow screw is irregular and narrow due to high-energy damage or sacrum dysplasia are prevented; therefore, the hollow screw penetrates out of the bone cortex, and serious nerve and blood vessel injury is caused. The probe technology not only can improve the operation safety and efficiency, but also can reduce the number of times of fluoroscopy in the operation.

The invention belongs to the technical field of rehabilitation instruments, and particularly relates to a spinal pelvic unbalance correction device which comprises a seat surface module, a waist supporting module, a sacrum supporting module and a control module. The multi-dimensional linkage adjustment specifically comprises the steps that 10-15 minutes serve as a cycle, the seat surface module is controlled to execute left-right alternate lifting actions, the lifting angle is 0.5-1 degree, the side wing tension of the waist supporting module and the supporting point position of the sacrum supporting module are synchronously adjusted, spiral muscle groups such as trapezius muscle chains and oblique abdominal muscles are specifically activated, the excessively-nervous erector spinae muscles are restrained, and the sacrum supporting function is achieved. The spinal intervertebral disc pressure is reduced. According to the correction equipment for spinal pelvic imbalance, a seat is converted into a dynamic rehabilitation tool from a static supporting tool, deep stable muscles are actively activated through multi-dimensional linkage rhythmic mechanical stimulation on the basis of the SPS spiral stable muscle chain theory, muscle strength imbalance is fundamentally improved, muscle disuse weakening caused by passive supporting is avoided, and the rehabilitation effect of spinal pelvic imbalance is improved. The correction effect is longer.

A mattress (1) capable of facilitating respiration when lying on the back is provided. The mattress (1) includes: a pair of iliac bone support portions (11) respectively configured below positions corresponding to portions (LMb) on at least a width direction outer side of iliac spines (LMa) on a pair of iliac bones (LM) in a pelvis (PV), thereby respectively supporting the positions corresponding to the pair of iliac bones (LM) from below; and a sacrum corresponding portion (12) configured between the pair of iliac bone support portions (11) and below a sacrum (S) between the pair of iliac bones (LM) in the pelvis (PV). The pair of iliac bone support portions (11) and the sacrum corresponding portion (12) are configured in a manner that body pressure from the sacrum corresponding portion (12) is lower than body pressure from the pair of iliac bone support portions (11).

Embodiments of a suction-irrigation cannula is provided, comprising a rigid outer tube concentrically aligned with a sliding inner tube. The inner tube includes a flexible tube segment interposed between a suction-irrigation tip substrate and a proximal rigid inner tube segment, which extends outside the rigid outer tube to a proximal hub. A suction-irrigation tip is mounted to the distal end of the inner tube and configured for fluid communication without fitting within the rigid outer tube. A nitinol member embedded along the flexible segment is configured to thermally actuate, bending the flexible segment into a predetermined shape upon reaching a target temperature. This arrangement facilitates navigation around anatomical obstructions, such as the sacral promontory, for deep pelvic space access without requiring additional incisions. The cannula may be used to aspirate or irrigate fluids in laparoscopic surgery through a single existing trocar entry point.

A lateral-posterior approach sacroiliac joint stabilizing method including, as viewed from a lateral view of a pelvic region of a prone patient, forming a first incision that is anterior to a posterior sacral wall and inferior to an ala and a second incision that is located along a lateral border of the sacroiliac joint, and thereafter, forming a first void that extends from the first incision, through the ilium, across the sacroiliac joint and into the sacrum and a second void that extends between the second incision and into the sacroiliac joint. A first implant is placed within the first void such that the first implant extends across the sacroiliac joint with its distal end within the sacrum and its proximal end flush with the lateral aspect of the ilium, and a second implant is placed within the second void such that the second implant extends into the sacroiliac joint.

A system and method for fusing the sacroiliac joint is described herein. The system includes a first sacrum anchor and a first compression anchor for implantation through a bore in the iliac bone into engagement with the first sacrum anchor. The first sacrum anchor includes an external thread portion, and an internal channel defined by an inner surface. The inner surface includes an internal thread portion. The first compression anchor includes an outer thread portion along part of the shaft configured to engage the internal thread portion of the first sacrum anchor. Rotation of the first compression anchor draws the first compression anchor toward the first sacrum anchor when the outer thread portion of the first compression anchor is threadably engaged with the internal thread portion of the first sacrum anchor. This configuration allows a user to dial in the appropriate compression on the SI joint.

The invention discloses a customized and assembled semi-sacrum biological prosthesis and a manufacturing method, and relates to the technical field of medical instruments, the customized and assembled semi-sacrum biological prosthesis comprises a prosthesis main body and an ilium reconstruction member, and the prosthesis main body and the ilium reconstruction member are detachably connected; a first fusion face is arranged at the upper end of the prosthesis body and used for being attached to a lumbar vertebra lower end plate, a second fusion face is arranged on the side face of the prosthesis body and used for being attached to a sacrum midline osteotomy face, a first hook body is arranged at the top of the ilium reconstruction piece, and a second hook body is arranged at the bottom of the ilium reconstruction piece. A first hook body is arranged at the bottom of the ilium reconstruction part and used for being connected with the top of the iliac wing, a second hook body is arranged at the bottom of the iliac reconstruction part and used for being connected with the front portion of the lower edge of the iliac bone, and a third fusion face is arranged on the side face of the iliac reconstruction part and used for being attached to the iliac bone cutting face. The ilium osteotomy surface and the lumbar vertebra lower end plate are in good butt joint, and biomechanical conduction of the pelvis of the human body is met.

A sacroiliac joint implant system includes a primary implant configured to be received in a sacroiliac joint of a patient and a secondary implant configured to couple with the primary implant. The primary implant includes a body extending from a proximal end to a distal end and a plurality of threads extending from the body. The secondary implant includes a first anchor configured to anchor within a sacrum of the patient and a second anchor configured to anchor within an ilium of the patient.