27 results about "Sacrum bone" patented technology

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.

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 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.

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.

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.

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 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.

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).

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.

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 present disclosure relates to a medical screw (1), designed and intended for selective screwing into the sacrum (2) and the ilium (3) of a patient, comprising a threaded shaft (4) whose proximal end section (4.pE) is formed into a ball head (5), a sleeve-shaped tulip (6) which is pivotably and rotatably held on the ball head (5) at its distal axial end section (6.dE) with respect to the threaded shaft (4), and which has a transverse recess (7) open at the proximal end face (6.pS) of the tulip (6) which is provided for transversely receiving a stabilizing rod (8), wherein the transverse recess (7) is located in the proximal axial end section (6.pE) of the tulip (6) is formed with an internal thread (9) and a setscrew (10) which is screwed or can be screwed into the internal thread (9) and is designed to press a stabilizing rod (8) inserted into the transverse recess (7) directly or indirectly against the ball head (5) and to fix the tulip (6) on the ball head (5) in a selectable relative orientation, characterized by a chamfer (11) formed on or from the distal end face (6.dS) of the tulip (6) which increases the swivel angle (α) of the tulip (6) with respect to the threaded shaft (4), the radial central axis (11.r) of which, viewed in the circumferential direction (u), is aligned in a tulip radial direction between a transverse recess axis (7.A) and a tulip transverse axis (6.A) rotated by 90° thereto. Furthermore, the present disclosure relates to a medical screw device (13), characterized by at least two such medical screws (1).

Methods and systems for spinal radio frequency neurotomy. Systems include needles capable of applying RF energy to target volumes within a patient. Such target volumes may contain target medial branch nerves along vertebrae or rami proximate the sacrum. Such procedures may be used to ablate or cauterize a portion of the targeted nerve, thus blocking the ability of the nerve to transmit signals to the central nervous system. Disclosed needles may be operable to asymmetrically, relative to a central longitudinal axis of the needle, apply RF energy. Such asymmetry facilitates procedures where a tip of the needle is placed proximate to anatomical structures for location verification. Then RF energy may be applied in a selectable direction relative to the needle tip to ablate volumes that include the targeted medial branch nerves or rami, thus denervating facet joints or the sacroiliac joint, respectively, to relieve pain in a patient.

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 utility model relates to a waist protection cushion for maintaining pelvis stability and lumbar vertebra physiological curvature, and belongs to the technical field of ergonomic protectors. Through a bionic curved surface and biomechanical coupling system, the cushion solves the problems of non-physiological backward movement of lumbar vertebra, sacrum suspension, insufficient biomechanical synergy and the like caused by fixed encircling type side wings and single ischial support design of a traditional waist protection cushion, and has the core innovation points that 1, a central convex curved surface adopts a composite curvature structure, so that the shape of the central convex curved surface is more than that of the central convex curved surface, and the shape of the central convex curved surface is more than that of the central convex curved surface; a lumbosacral continuous supporting area is covered, local pressure concentration is reduced, and the lumbar vertebra physiological curvature is adapted; 2, the non-encircling side wing curved surfaces allow the waist to naturally twist and laterally bend through backward gradual curvature change, so that the degree of freedom of movement is improved; 3, according to the ischium bearing area, the outer edge of the ischium tuberosity is covered by 10-15 mm through the bidirectional diffusion design, the W-shaped transverse radian and the V-shaped longitudinal radian are matched with 90% or above of the hip shape (according to GB / T 10000-2023), and pressure distribution is improved;

This invention discloses a novel 3D-printed self-stabilizing modular sacral prosthesis, comprising a prosthesis body, including a 3D-printed and assembled left and right iliac bone connecting blocks, forming a vertebral body connecting portion in the middle after assembly; the top of the vertebral body connecting portion has a vertebral body connecting surface that abuts against the L5 vertebral body, and a baffle is provided at the front of the vertebral body connecting surface, the baffle abutting against the anterior surface of the L5 vertebral body; the outer end of the left iliac bone connecting block has a left iliac bone connecting surface that abuts against the left iliac bone osteotomy surface, and the outer end of the right iliac bone connecting block has a right iliac bone connecting surface that abuts against the right iliac bone osteotomy surface. Defining the human body as head above, feet below, front front, and back back, the left and right iliac bone connecting surfaces form a double "eight" shape, narrower at the front and wider at the back, and narrower at the bottom and wider at the top. The modular structure of this invention allows for segmented installation during surgery, reducing traction on nerve tissue; the self-stabilizing structure of the prosthesis restricts forward and downward displacement of the prosthesis, inhibiting postoperative lumbar lordosis displacement.

The application relates to the technical field of medical image processing and deep learning, in particular to a sacrum three-dimensional model matching method and device based on deep learning, which can solve the problem that the difference between a standard sacrum three-dimensional model and a patient three-dimensional model is relatively large, and it is difficult to compare the two, thereby affecting the judgment of the sacroiliac screw implantation position. The sacrum three-dimensional model matching method based on deep learning comprises the following steps: acquiring a CT image comprising a normal sacrum, performing three-dimensional reconstruction on the CT image through a deep learning neural network, and generating a three-dimensional point cloud model representing a normal sacrum three-dimensional model; acquiring a feature part of the normal sacrum, and selecting corresponding feature points from the feature part by using a deep learning neural network; and according to the feature points, superimposing the three-dimensional point cloud model and a to-be-detected three-dimensional model with to-be-detected feature points, to obtain a superimposed image of the three-dimensional point cloud model and the to-be-detected three-dimensional model.

An elevation apparatus to elevate a bony prominence of a user such as a heel, ankle, foot, metatarsal, elbow, hip, sacrum, shoulder blade or other bones. The elevation apparatus including a permeable skin-compatible adhesive layer, an absorbent layer, a protective layer and at least one inflatable or prefilled air bladder including at least one aperture configured for the selected bony prominence.

The utility model relates to medical education field especially, especially relates to a teaching lumbar puncture model, including spine component, contains a plurality of vertebra model and intervertebral piece, the intervertebral piece includes each other's connection nucleus pulposus model, annulus fibrosus model and yellow ligament model, bone component contains the sacrum model and ilium model connected, and is connected with spine component, ligament component contains interspinal ligament, muscle component is constituted by lower muscle model and upper muscle model, skin component covers on upper muscle model, and is equipped with the puncture hole of being able to penetrate in the target area corresponding position, the puncture hole penetrates upper muscle model, interspinal ligament and yellow ligament model in proper order, fixed component is used for supporting and fixed muscle component, the vertebra model, bone component adopts hard material to make, the intervertebral piece, ligament component, muscle component, skin component adopt flexible material to make. Its solved the technical problem that the simulation degree of existing lumbar puncture model is insufficient.

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 having a bone dislodging member 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, a prosthesis deployment assembly configured to engage the SI joint prosthesis and advance the SI joint prosthesis into the dysfunctional SI joint, and a bone harvesting assembly adapted to extract and collect dislodge bone material from the bone dislodging member after creation of the pilot SI joint opening.

An off-loading device for sacral ulcers includes a pressure relieving pad, an adhesive layer, and a protective film. The pressure relieving pad includes a flat pad body and at least one perforated line. The adhesive layer is superimposed onto a distal face of the flat pad body so that the pressure relieving pad can be attached to the patient's skin. The protective film is removably superimposed onto the adhesive layer to protect the adhesive layer. The flat pad body includes a central section and at least one peripheral section, wherein the peripheral section is concentrically positioned around the central section and perimetrically attached to the central section by the perforated line. Once the central section is separated from the peripheral section through the perforated line, the peripheral section can be adhered around the sacral ulcers for treatment or patient's skin can be elevated for prevention of the sacral ulcers.