68 results about "Sacrum bone" patented technology

Methods of stabilizing the sacroiliac joint by placing an expandable device in the joint to generate laterally opposing forces against the iliac and sacral surfaces of the SI joint to securely seat the device in a plane generally parallel to the SI joint. The expandable device is coated with or otherwise contains a bone material to promote fusion of the joint. The expandable device used in methods of the present invention can be, for example, an expandable cage, a balloon, a balloon-expandable stent or a self-expanding stent.

Procedures for the fusion of the sacroiliac joint advantageously make use of an implant selected to distract the joint upon insertion and to maintain or increase tension upon insertion. The implant can have a varying structure along its length. In some method described herein for fusing the sacroiliac joint using an implant, an implant is screwed into the sacroiliac joint between the sacrum bone and the iliac bone. The implant comprises a shaft, a tool engagement flange at top end of the shaft, a pointed tip comprising no more than about 20 percent of the length of the screw, and threads spiraling around the shaft. For screws of particular interest, the volume displacement perpendicular to the shaft increases at least about 5 percent from a point adjacent the tip to a point near the top of the shaft. Some of the desirable screw designs can be used in other orthopedic application, especially situations involving varying bone hardness. Useful filler material can be formed from a blend of bone powder and bioactive agents.

An undercutting system for preparing a region between an ilium and a sacrum for sacroiliac fusion. The undercutting system includes a probe assembly and a cutting assembly. The probe assembly is operably mounted to the insertion apparatus. The probe assembly is moveable with respect to the insertion apparatus between a retracted configuration and an extended configuration. In the extended configuration at least a portion of the probe assembly extends laterally from the insertion apparatus. The cutting assembly is operably mounted with respect to the probe assembly and the insertion apparatus. The cutting assembly is movable with respect to the insertion apparatus between a retracted configuration and an extended configuration. In the extended configuration at least a portion of the cutting assembly extends laterally from the insertion apparatus.

An orthopedic anchoring system for attaching a spinal stabilization system and concomitantly fusing a sacroiliac joint is disclosed that includes a delivery tool and an implant assembly for insertion into a joint space of a sacroiliac joint. The implant assembly may be secured using anchors inserted through bores within the implant body and into the underlying sacrum and / or ilium. The implant body may also include an attachment fitting reversibly attached to a guide to provide attachment fittings for elements of the spinal stabilization system. The implant assembly may be releasably coupled to an implant arm of the delivery tool such that the implant arm is substantially aligned with the insertion element of the implant assembly. An anchor arm used to insert the anchor may be coupled to the implant arm in a fixed and nonadjustable arrangement such that the anchor is generally aligned with a bore within the implant assembly.

A device and method for male impotence correction and female anorgasmy. An electronic stimulator with at least one pulse generator is implanted inside the body. At least one electrode is installed in the epidural space in the sacrum section of the spinal column and a conductor running under the user's skin electrically connects the electrode to the pulse generator. The stimulator is programmable and may be controlled from outside the body. Upon command initiated by the user or the user's lover the stimulator produces very short low-voltage electrical pulses in the sacrum section that are picked up by the nerves leading to the sex organs of the user, which stimulates arousal in the user's reproductive systems. The pulses are similar to the pulses generated by heart pacemakers. In other preferred embodiments the stimulator includes one or two drug chambers and a tube extending from each chamber to a nerve for producing stimulation of a sex organ. The present invention works on both males and females. In a preferred embodiment, the programmable electronic stimulator is implanted under the skin in the patient's back. Stimulation of the nerves coming out from the parasympathetic part of the spinal cord causes dilatation of the penile arteries in the male and in the clitoris arteries of the female, which results in an erection in the male and pre-orgasmic sensation in the female. In female, the stimulation of the sacral part of the spinal cord increases sexual desire and escalation to the level of orgasm. A preferred embodiment provides for emission stimulation. Emission is stimulated by electrical excitation of the sacral part of the spinal cord by increasing the voltage of the previous impulses. The device may be preprogrammed to set in motion the emission and ejaculation process at a predetermined time interval after the start of the erection process.

A support contour of a cushion, such as a wheelchair cushion, defines relief areas at locations adjacent to skin covering the ischial tuberosities, the greater trochanters and the coccyx and sacrum of a person sitting on the support contour. Support areas of the support contour transfer force into the pelvic area adjacent to skin covering tissue masses on opposite lateral sides of the posterior buttocks and beneath the proximal thighs of the person. Greater clearance is also provided in the perineal area. Risks of pressure ulcers from pressure and shear forces on bony prominences is reduced while providing support at the broader areas without bony prominences in such a manner to encourage postural alignment. The risks of skin breakdown perineal are diminished.

Methods of stabilizing the sacroiliac joint by placing an expandable device in the joint to generate laterally opposing forces against the iliac and sacral surfaces of the SI joint to securely seat the device in a plane generally parallel to the SI joint. The expandable device is coated with or otherwise contains a bone material to promote fusion of the joint. The expandable device used in methods of the present invention can be, for example, an expandable cage, a balloon, a balloon-expandable stent or a self-expanding stent.

Procedures for the fusion of the sacroiliac joint advantageously make use of an implant selected to distract the joint upon insertion and to maintain or increase tension upon insertion. The implant can have a varying structure along its length. In some method described herein for fusing the sacroiliac joint using an implant, an implant is screwed into the sacroiliac joint between the sacrum bone and the iliac bone. The implant comprises a shaft, a tool engagement flange at top end of the shaft, a pointed tip comprising no more than about 20 percent of the length of the screw, and threads spiraling around the shaft. For screws of particular interest, the volume displacement perpendicular to the shaft increases at least about 5 percent from a point adjacent the tip to a point near the top of the shaft. Some of the desirable screw designs can be used in other orthopedic application, especially situations involving varying bone hardness. Useful filler material can be formed from a blend of bone powder and bioactive agents.

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 method for treating back pain by stabilizing the sacroiliac joint. The method includes fusing a sacrum bone to an ilium bone or otherwise mechanically immobilizing the sacroiliac joint by inserting at least two implants into voids formed within or between the articular surfaces of each sacroiliac joint of a patient without substantially distracting the joint. The voids are arranged within each joint at either a converging orientation or a diverging orientation. A kit containing the implants and tools required to insert the implants into the joint are also described.

A method for treating back pain by stabilizing the sacroiliac joint. The method includes fusing a sacrum bone to an ilium bone or otherwise mechanically immobilizing the sacroiliac joint by inserting at least two implants into voids formed within or between the articular surfaces of each sacroiliac joint of a patient without substantially distracting the joint. The voids are arranged within each joint at either a converging orientation or a diverging orientation. A kit containing the implants and tools required to insert the implants into the joint are also described.

Procedures for the fusion of the sacroiliac joint advantageously make use of an implant selected to distract the joint upon insertion and to maintain or increase tension upon insertion. The implant can have a varying structure along its length. In some method described herein for fusing the sacroiliac joint using an implant, an implant is screwed into the sacroiliac joint between the sacrum bone and the iliac bone. The implant comprises a shaft, a tool engagement flange at top end of the shaft, a pointed tip comprising no more than about 20 percent of the length of the screw, and threads spiraling around the shaft. For screws of particular interest, the volume displacement perpendicular to the shaft increases at least about 5 percent from a point adjacent the tip to a point near the top of the shaft. Some of the desirable screw designs can be used in other orthopedic application, especially situations involving varying bone hardness. Useful filler material can be formed from a blend of bone powder and bioactive agents.

The invention discloses a vertebral column digital reconstruction method and a vertebral column digital reconstruction system. The method comprises the following steps of: detecting a pelvis projection angle of a person to be detected; checking in a preset table of the corresponding relationship between the pelvis projection angle and a pelvis inclination angle so as to obtain the pelvis inclination angle; calculating according to the pelvis projection angle and the pelvis inclination angle so as to obtain a sacrum inclination angle; determining the relative length of a sagittal plane vertebral column of an orthopedic vertebral column fragment after the preset orthopedic; and reconstructing a vertebral column-pelvis sagittal plane balance model according to the determined relative length of the sagittal plane vertebral column and the sacrum inclination angle. According to the method, on the basis of the pelvis projection angle of a patient, the balance of vertebral column-pelvis sagittal plane can be reconstructed through a series of calculation and drawing; and in comparison with the prior art, a stable vertebral column-pelvis sagittal plane can be reconstructed by the method, so that the vertebral column orthopedic operation can be instructed effectively, and the curative effect after the operation is improved.

Systems for and methods of fusing a sacroiliac joint are provided which include an implant assembly adapted to be inserted into the joint space defined by the bones of a sacrum and an ilium, a delivery tool and means for inserting the implant assembly into the joint. The implant assembly includes a body disposed intermediate distal and proximate end portions thereof and having oppositely disposed side members adapted to expandably engage the sacroiliac joint following insertion of the assembly into the joint space. A tool is provided and provides a means for placing the implant assembly adjacent the sacroiliac joint, inserting it into the joint space and expanding means are thereafter applied to expand the oppositely disposed side members into operative engagement with the joint.

The invention discloses a personalized artificial sacrum prosthesis based on additive manufacturing, and relates to the field of medical instruments. The personalized artificial sacrum prosthesis based on additive manufacturing comprises a T-shaped main body and locking pieces, wherein the T-shaped main body comprises a longitudinally arranged bearing area and a connecting area transversely arranged below the bearing area. The personalized artificial sacrum prosthesis comprises the main body and the locking pieces, bears the lumbar vertebra and the pelvis and has high strength, high matching degree with a reconstruction area and natural bearing stability; screw fixing positions are accurate and sufficient, the bone mass of screw placing parts is rich, and the firmness is higher; A lightweight design concept is adopted, and the weight of an implant is reduced as much as possible on the premise of ensuring the strength of vertebral bodies; due to the arc design, a nerve root walking channel is reserved, and sacral nerve clamping and pressing are avoided; and the bone contact surface is rough and porous, instant stability and bone ingrowth are facilitated to form biological internal fixation, and personalized accurate reconstruction of a sacrum total incision bone defect area can be realized through detailed preoperative planning.

A pelvic trauma device for emergency treatment of pelvic fracture includes two parallel elongated straps or belts that are connected, but are adjusted independently of each other. The two parallel belts include a lower belt and an upper belt. The two parallel belts are independently tensioned to provide: 1) pelvic fracture stabilization (lower belt); and 2) compression over the sacrum and anterior abdomen (upper belt).

An anchor device for use in sacroiliac joint stabilization comprises a housing having one or more apertures; one or more engagement members at least partially disposed in the housing, where at least one of the one or more engagement members is movable between a retracted position and an extended position such that, when in the extended position, the at least one of the one or more engagement members extends through at least one of the one or more apertures; wherein, when in the extended position, the at least one of the one or more engagement members is configured to move to the extended position within cancellous bone of a sacrum; and wherein the anchor device comprises a continuous channel extending from a first end of the anchor device to a second end of the anchor device, the channel being configured to receive a guidewire.

A method of treating prolapse of a vagina includes supporting the vagina by implanting a sacrocolpopexy support and locating an exterior surface of the vagina between leg portions of a vaginal cuff section of the support, and securing a head section of the support to a ligament or a sacrum while isolating the head section from contact with tissue of the vagina.

The invention provides a passage bolt extracorporeal guiding device for pelvic and acetabulum fractures and methods for manufacturing and using the same. The passage bolt extracorporeal guiding devicefor the pelvic and acetabulum fractures comprises a locator, a guider acquired by 3D printing, a guide needle and a guide needle sleeve which sleeves outside the guide needle, guide passages are arranged on the guider, and the guide passages comprise one or more of an acetabulum front column bolt guide passage, an acetabulum back column bolt guide passage, an ilium bolt guide passage, an acetabulum upper bolt guide passage, a sacroiliac bolt guide passage and a transsacral bolt guide passage. The passage bolt extracorporeal guiding device is accurate in locating and can be applicable to treating various types of pelvis and acetabulum fractures. The methods for manufacturing the passage bolt extracorporeal guiding device for the pelvic and acetabulum fractures and using the passage bolt extracorporeal guiding device are simple and easy to operate, the locating is accurate, and the device and methods are applicable to promotion.

The present invention relates to a positioner apparatus, system and method for supporting the body of a patient for a surgical procedure using a posterior pelvic support assembly in the area of the back, sacrum, coccyx, and / or the axial skeleton for the pelvic region of the spine, and an anterior pelvic support assembly for supporting the body at each of the crest of ilium area and the pubis area. The positioner system provides posterior and anterior pelvic support assemblies that are movably adjustable for freedom of movement in multiple coordinate planes to accommodate a wide range of patient sizes for surgery, e.g. where a patient is placed in the lateral decubitus position.

Systems are described for stabilizing a dysfunctional sacroiliac (SI) joint of a subject. The systems include a tool assembly and a defect creation assembly, and a prosthesis. The tool assembly is adapted to create a pilot SI joint opening in the dysfunctional SI joint; portions of which being disposed in the sacrum and ilium bone structures. The prosthesis is sized and configured to be 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. The system optionally includes an image capture apparatus adapted to capture images reflecting positions and / or orientations of the tool assembly when disposed in the subject's body.

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.

The invention discloses a testing method for lumbar vertebra stretching and buckling angles. The stretching and retracting angles comprise a stretching-position stretching angle alpha1 and a buckling-position buckling angle alpha2, an included angle between a plane built by upper portions of the mesosternum and the sacrum of a testee and a perpendicular plane is the stretching-position stretching angle alpha1, an included angle between a plane built by upper portions of a symphysis pubis position and shoulder blades on two sides of the testee and a perpendicular plane is the buckling-position buckling angle alpha2, a horizontal measuring device and a perpendicular measuring device are fixed or shifted to measure the alpha1 and the alpha2 of the testee. The invention further discloses application of the testing method in lumbar vertebra functional-position radiography. The functional positions of the lumbar vertebrae of patients can be determined by adjusting the horizontal measuring device and the perpendicular measuring device according to lumbar vertebra stretching and buckling angle values of different individual patients, subjective randomness of the patients when the lumbar vertebra functional positions are fixed is reduced, and the radiographic quality of the lumbar vertebra functional positions is guaranteed.

Methods and apparatuses for performing an orthopedic procedure in the sacroiliac region are disclosed. In one form, an aperture is formed that at least partially extends through at least one of an ilium and a sacrum. An undercutting system is inserted into the aperture. The undercutting system includes an insertion apparatus, a probe assembly and a cutting assembly. The probe assembly is moved with respect to the insertion apparatus from a retracted position to an extended position. The probe assembly is manipulated within a joint between the ilium and the sacrum while the probe assembly is in the extended position. The cutting assembly is moved with respect to the insertion apparatus from a retracted position to an extended position. The cutting assembly is manipulated within the joint between the ilium and the sacrum while the cutting assembly is in the extended position to form a fusion region.

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 invention discloses a traumatic sacroiliac joint dislocation closed reduction and minimally invasive bionic rational internal fixation system (i.e., a surgical instrument) and a use method thereof. The system is divided into a reduction system, an aiming system and a fixation system, and has the characteristics that: 1, the internal fixation system is a three-dimensional bone traction sacroiliac joint closed reduction system under the assistance of a reduction outer frame at a prone position; 2, a sacrum rod type screw implantation aiming system in the system is a minimally invasive precise aiming system taking the screw tail of a long-tail universal pedicle screw as a joint point; and 3, a sacrum rod type screw in the system is combined with pedicle screws of the sacrum 1 and the sacrum 2 to fix the sacroiliac joint, the fixation mechanism is similar to a suspension bridge type physiological stability mechanism of the sacroiliac joint, and the internal fixation system is a bionic rational fixing system. According to the invention, early, safe, effective and minimally invasive surgical treatment can be provided for traumatic sacroiliac joint dislocation and partial sacrum fracture patients, and surgery can be carried out in primary hospitals. The internal fixation system plays an important role in improving the cure rate of pelvic fracture and reducing the disability rate and the death rate of pelvic fracture.

An apparatus for installing a fusion implant into the sacroiliac joint (“SI Joint”). The apparatus comprises a working channel, a joint locator, an abrading device, and an insertion device. The joint locator is inserted into the working channel, and this combination, guided by a K-wire, is advanced into the SI Joint. The joint locator is removed, and the abrading device is used to abrade the sacrum and ilium inside the SI Joint. The insertion device then advances the implant into the abraded area of the SI Joint. The abraded area heals across the implant, thereby fusing the sacrum to the ilium and fusing the SI Joint.

The invention relates to a biological plasticized specimen capable of being opened from back to display the visceral positional relationship, and a preparation method thereof, and belongs to the technical field of biological plasticization. The preparation method comprises the following steps: 1, breaking ribs of a preservative-treated human body specimen from the back to expose visceral organs from the back, separating the sacrum and the hip bone at the sacroiliac joint in a manner of complete separation at one side and ligament reservation at the other side, bleaching the human body specimen, soaking the dissected human body specimen in an acetone solution for 60-80 d, putting the dehydrated and degreased human body specimen in a mixed solution of silica gel and a silica gel catalyst ina vacuum pressure cabin, standing for 50-60 d, adjusting the pressure of the vacuum pressure bin from 0.1-0.3 kPa to 0.9-1.2 kPa during standing, shaping and repairing the impregnated human body specimen, putting the human body specimen in a curing box, and curing the human body specimen by using organic peroxide and aliphatic nitrogen compound steam to obtain the biological plasticized specimen.The biological plasticized specimen displays the shape and position relation of visceral organs from the back, so later specimen observation is facilitated.