148 results about "Ischium" patented technology

A method of treating pelvic organ prolapse is provided. The method generally includes the steps of establishing a first pathway between the external perirectal region of the patient to the region of the ischial spine in tissue on one side of the prolapsed organ, followed by establishing a second pathway in tissue on the contralateral side of the prolapsed organ. A support member, which includes a central support portion and two end portions, is positioned in a position to reposition said prolapsed organ in said organ's anatomically correct location. The end portions of the support member are introduced through the respective tissue pathways, followed by adjustment of the end portions so that the support member is located in a therapeutic relationship to the prolapsed organ that is to be supported. An apparatus and kit for said treatment is further provided.

An acetabular prosthesis having an outer member for engaging the acetabulum. The outer member has a part-spherical bearing surface terminating in a distal rim. The rim has a contour such that the portion thereof to be located between the ischium and the pubis extends distally further from an equator of the bearing surface than the contour to be implanted between the pubis and the illium and between the ischium and the illium.

An anchor for securing an implant within bone. In one embodiment, the anchor is used to aid in securing an acetabular cup within an acetabulum. The anchor may be implanted within an ischial defect of the pelvis, and is attached to an outer surface of the acetabular cup shell. The anchor is made at least in part of, and may be made entirely of, a porous metal material to facilitate the ingrowth of surrounding bone into the anchor for osseointegrating the anchor into the surrounding bone. The anchor may be secured to the acetabular shell by a screw fastener or by cement, for example. The anchor may be secured to the acetabular shell before the anchor and the acetabular shell are together implanted into the acetabulum, or the anchor may be implanted into the ischial defect, followed by seating the acetabular shell in the acetabulum and then securing the acetabular shell to the anchor.

A modular acetabular anti-protrusio cage and acetabular cup combination includes an acetabular cup having a bone ingrowth-promoting surface and a shaped anti-protrusio cage having one or more fixation flanges. The acetabular cup is attached to acetabular bone, and the anti-protrusio cage is thereafter mounted to the inner surface of the acetabular cup. Alternatively, the anti-protrusio cage can be mounted to the inner surface of the acetabular cup before the acetabular cup is attached to acetabular bone. The flanges of the anti-protrusio cage are joined to the ilium, ischium and / or pubis to secure the acetabular cup and the anti-protrusio cage to the hip bone and to distribute forces away from the medial wall of the acetabulum. After the cup and the cage are mounted in the patient, a bearing insert is secured within the interior of the anti-protrusio cage, and a prosthetic femoral head is positioned in the bearing insert.

An assembly for securing a plurality of ligaments to a bone includes a first portion exhibited by such as a ring shaped clamp with a tab and slot or a split stem incorporating a plurality of spaced apart ring shaped clamps compressively gripping about the ligaments. A second portion includes at least one of a screw or a ring extending portion engaging a ligament end loop or an undercut recess seating portion extending from an end of a body also incorporating the first portion, and such that the second portion extends from an end of the ligaments and mounts to the bone. The ligaments may further include first and second end-to-end attached sections, between which are configured angled and opposing / aligning incisions.

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.

A modular prosthetic socket for a residual limb of a lower extremity of a patient may include an adjustable height ischial seat for facilitating the distribution of body weight away from the distal end of the residual limb and channeling the weight preferentially through the ischial tuberosity. In one aspect, the modular prosthetic socket may include a base plate, multiple longitudinal struts, and an ischial seat pad adjustably coupled with the proximal end of a medial strut, such that the ischial seat pad is vertically adjustable relative to the medial strut to adjust a total length of the medial strut measured from a proximal end of the ischial seat pad to the distal end of the medial strut. The ischial seat pad is configured to engage an ischium of the patient when the prosthetic socket is worn by the patient.

Protective devices, to protect a body part having a bony portion with a soft tissue layer between the bony portion and an outer skin layer, have an inner surface which conforms to the body part to be protected and are applied to the body part to reduce pressure exhibited at the interface between the bony portion and the soft tissue layer, across the soft tissue and outer skin layers and at the interface between the outer skin layer and a support surface. The protective devices may be made of any material suitable for distributing the weight of the body part over an extended area and volume and may include a mushy material, a hard shell, a hydro absorptive material, and a wound dressing with medication. The body part to be protected includes at least one of the heel, trochanter, knee, sacrum, coccyx, ischium, scapula, elbow, ankle, buttocks and occiput; The protective devices may be secured to the body part directly or via a garment or any other suitable securing means.

An acetabular prosthesis having an outer member for engaging the acetabulum. The outer member has a part-spherical bearing surface terminating in a distal rim. The rim has a contour such that the portion thereof to be located between the ischium and the pubis extends distally further from an equator of the bearing surface than the contour to be implanted between the pubis and the illium and between the ischium and the illium.

A floor seat providing a pair of sitting-bone supports, a pelvic-floor support extending between. the sitting-bone supports at substantially the same level, a coccyx indent behind the pelvic-floor support, a heel indent in front of the pelvic-floor support, and a forward incline, which provide positioning, cushioning, insulation, and the proper amount of supporting pressure or absence of pressure appropriate to the sitting bones, the pelvic floor, and the coccyx, and room for proper placement of the feet, for persons sitting on a floor, particularly though not exclusively in the practice of yoga, and optionally a pubic-bone positioner to aid in positioning and posture, and thigh supports.

A training device for training the pelvic floor muscles of a human, which can be externally placed on the human body and can be connected to feedback units that produce feedback signals, such as vibrations. The training device is, at least on one side, aligned with the pelvic floor, can be compressed and can be axially deformed on its sensor side. A pressure force sensor unit of the training device can be positioned during the operation in such a manner that the ischial tuberosities of the pelvic floor can be situated on both sides on the pressure sensor unit, and a gravitational force component passing through the pelvic floor acts upon the pelvic floor training device, making a precise measurement of the exertion on the pelvic floor possible.

The invention provides a peri-acetabular prosthesis structure. The peri-acetabular prosthesis structure comprises an acetabular cup, an ilium supporting body, an ischium supporting body and a pubis supporting body. The ilium supporting body, the ischium supporting body and the pubis supporting body are all arranged on the acetabular cup. The acetabular cup is connected with the ilium osteotomy face of the pelvis through the ilium supporting body, connected with the ischium osteotomy face of the pelvis through the ischium supporting body, and connected with the pubis osteotomy face of the pelvis through the pubis supporting body. In this way, after hemipelvectomy surgery, firm fixiation of a hemipelvic prosthesis in the early stage of reconstruction is realized, and later-stage complications like screw breakage, prosthetic loosening and dearticulation can be prevented. The problem of an artificial hemipelvic prosthesis in the prior art that complications like screw breakage, prosthetic loosening and dearticulation are likely to occur in the later stage is solved.

The invention discloses a self-locking acetabular posterior-wall posterior-column anatomical steel plate which comprises a steel plate body, a self-locking bolt and an auxiliary sleeve pipe, wherein the auxiliary sleeve pipe is used for controlling the installation of the steel plate body, and a locking-hole internal thread is respectively manufactured at the tops of a first self-locking hole, a second self-locking hole and a third self-locking hole; an external thread is respectively manufactured on the self-locking bolt and the auxiliary sleeve pipe, and the external thread can be in corresponding spinning fit with the locking-hole internal thread; the design per se permits appropriate torsion and bending in a three-dimensional space, is convenient for molding so as to be better fitted with individualized bones and is used for bearing the moving loads of joints, so that fractures are normally healed, and complications, such as fracture later-looseness, shift, pains, bone stress shielding and the like are reduced; the success ratio of fracture internal fixation operations is improved, the molding in the operations is avoided, the blood loss in the operations is reduced, the anesthetic time is reduced, the infected chances are reduced, and the operative risk is lowered; and the interference of built-in materials for sciatic nerves in the internal fixation of the operations is reduced.

Protective devices, to protect a body part having a bony portion with a soft tissue layer between the bony portion and an outer skin layer, have an inner surface which conforms to the body part to be protected and are applied to the body part to reduce pressure exhibited at the interface between the bony portion and the soft tissue layer, across the soft tissue and outer skin layers and at the interface between the outer skin layer and a support surface. The protective devices may be made of any material suitable for distributing the weight of the body part over an extended area and volume and may include a mushy material, a hard shell, a hydro absorptive material, and a wound dressing with medication. The body part to be protected includes at least one of the heel, trochanter, knee, sacrum, coccyx, ischium, scapula, elbow, ankle, buttocks and occiput; The protective devices may be secured to the body part directly or via a garment or any other suitable securing means.

The invention relates to a posterior fixing steel plate for fracture of acetabular anterior and posterior columns. The posterior fixing steel plate comprises a plate body covering the back wall of the acetabular posterior column; the plate body extends downwards to the root of an ischial spine from the upper part close to the top end of a greater sciatic notch along the inner side edge of the acetabular posterior column and then is bent and extends to the lower part of the top end of an ischial tuberosity; an anterior column threaded hole for being connected with a guide sleeve is formed in the end, at the top end of the greater sciatic notch, of the plate body, and the axis of the anterior column threaded hole points to the acetabular anterior column through sclerotin between an acetabular fossa and a square area; a posterior column threaded hole used for being connected with the guide sleeve is formed in the other end of the ischial tuberosity and the axis of the posterior column threaded hole points to the tail end of the ischial tuberosity through sclerotin in the ischial tuberosity; a plurality of fixing screw holes arranged along the plate body are formed between the anterior column threaded hole and the posterior column threaded hole; a limiting hook hooked to the upper part of the greater sciatic notch is arranged on the side edge, which is close to the greater sciatic notch, of the end and corresponding to the anterior column threaded hole, of the plate body.

Cushioning constructions for mattresses or chair cushions are given comfort features for severely immobilized patients. Otherwise, the problem is that, sit or lie still long enough and awful sores may develop. The cushioning constructions hereof are formed of plural or multiple layers of resilient materials of dissimilar softness / firmness and, moreover, these layers are partitioned into multiple zones across the layers of likewise dissimilar softness / firmness. Such features include soft sinking spots for the pelvic area in mattresses or for the counterpart ischium support zone in seat cushions. In distinction, firm and soft juxtapositions are provided for the upper thigh region in mattresses or in the counterpart femoral support zone in seat cushions. Conversely, firm lateral rails for mattresses or counterpart lateral wings for cushions of chair backs are provided where the concern is with Huntingdon's disease patients, who are largely immobile but periodically convulse at times.

A bicycle or exerciser seat anatomically designed to accommodate, support, protect, and relieve the male genitals from the pressure and friction exercised by the body's weight when riding on ordinary bike seats or exerciser seat, and in particular, to safeguard the testis, which are otherwise squeezed between the leg and the front part, (the bird beak shape part) of ordinary seats during legs' movement, thus resulting in inflammation, injuries to the genitals, sexual impotence, and other serious pathologies. This novel seat also provides for two proper and comfortable resting points for the Ischial bones of the torso to rest on, and relief for the Urethral duct and other sexual soft tissues from pressure exercised by ordinary bike or exerciser seats. In addition, with this design the male genitals are supported and maintained at the center between the legs thus conferring confort, safer physical conditions, better control of the bike, and greater freedom of movement.

The invention belongs to the medical equipment technical field, in particular to a low incisura inclined screw hole acetabulum back wall bone fracture plate. The fracture bone plate is composed of a plate body and a screw hole; steel plate body is like a 'hat', the middle part arc part is in certain radian and is consistent with the anatomy shape of acetabulum, alar parts at the two side slightly raise to adapt the anatomy shape of acetabulum at nodule extension position with upper ilium and lower ischium; the plate body thickness of the steel plate of the invention is not uniform, the thinner side is at the connection position with acetabulum back wall margin, the thicker side is at the contact position with acetabulum back column, the middle transits gradually, and the overall design is consistent with sclerotin thickness variation of acetabulum. The invention can be used in operation only by adjusting according to fracture situation and has good fit perfectly with local sclerotin, no bigger hole can be produced, and a bolt can be prevent from entering articular cavity when being imbedded.

A memory saddle includes a double elastic foam assembly, in which a saddle is structured to include a first foam material layer and a high-elasticity foam material layer formed on the first foam material layer. The first foam material layer is formed with a first hollowed zone at a location thereof corresponding to an ischiatic pressure bearing zone of the saddle. A second foam material layer is received in and coupled to the first hollowed zone. The high-elasticity foam material layer is formed with a second hollowed zone at a location corresponding to the ischium and a memory foam layer is received in and coupled to the second hollowed zone such that the memory foam layer is in alignment, in a vertical direction, with the second foam material layer received in the first hollowed zone.

Structures of seating systems for human users are disclosed. In one embodiment, the structure comprises: a frame; a seat structure supported by the frame; and a back rest structure supported by the frame. The seat structure comprises a thigh support region and a pelvic support region where the pelvic support region defines a pelvic well for receiving an ischial tuberosity of the user and also provides a fulcrum to assist in rotating the pelvis of the user. The back rest structure comprises a gluteal panel for supporting a gluteal mass of the user and a posterior superior iliac spine (PSIS) panel disposed above the gluteal panel. The PSIS panel is adjustable to cause movement of a PSIS of the user and cooperate with the pelvic well to cause rotation of the pelvis of the user about the fulcrum provided by the pelvic well.

An artificial bone displacing equipment for treating the pelvis major defect is composed of femur-ischium connector, ilium displacing unit and sacrum connector with angle regulator between connection plate and bone supporting plate.

A sciatic relief device comprising a base, at least one reversibly inflatable bladder enclosed in a sleeve, and an inflation device attached to the bladder. A method of use for the sciatic relief device, wherein a user positions his thigh on top of the inflated bladder for at least a short period of time to alleviate the pain and other symptoms associated with sciatica.

The invention discloses an acetabulum square area bone fracture plate which belongs to the technical field of orthopedic surgical instruments and is used for effectively fixing acetabular fractures. The technical scheme is as follows: the bone fracture plate has a three-dimensional structure, and the shape of each part of the bone fracture plate is respectively matched with curved shapes of an acetabulum square area, so that each part of the bone fracture plate can effectively fix the acetabular fractures. The bone fracture plate disclosed by the invention can effectively fix acetabular anterior and posterior column fractures at the same time, the coverage and support to the acetabulum square area can be increased by fixing arcuate lines and ischial spine parts of the acetabulum square area, and acetabular anterior and posterior columns can be stably reconstructed from the medial wall of the square area. The bone fracture plate disclosed by the invention is originated in the treatment of hip fractures, has a simple structure, is convenient to use, achieves unexpected good effects, solves difficult problems in the treatment of acetabulum square area bone fractures, has remarkable benefits, and is worthy of popularization.

The present invention relates to a multifunctional artificial greater pelvis pros thesis. It is formed from sacral bone connection device, lumbar vertebrae connection device, greater pelvis replacement device and femur and ischium connection device. Said invention also provides the concrete structure of the said every device and their connection mode.

A mobile body unweighted sit and stand chair assembly prevents repetitive stress from sitting, standing, and lifting objects for long periods. The assembly provides a vertically, rotatably, and pivotally adjustable seat, a restrictive support padding that rotates from a support bracket to selectively support the spine or the pelvis, and a frame for structural integrity, mobility, and steering. The seat supports the buttocks and the ischium region of the pelvis, tilting forward up to 35 degrees to abut the pelvis against the support padding. This forward position maintains the spine in a straight posture and forces open posterior intervertebral disc space. The seat is supported by an adjustable rod that supports the weight of user while sitting, walking, kneeling, or lifting. A frame includes wheels that enable mobility and a brake. A first bracket enables feet to steer for hands-free maneuverability. A second bracket provides balance during kneeling and lifting.

The invention relates to a health care bicycle seat capable of making hucklebone concave and perineum hanging. The bicycle seat comprises a seat shell, a cladding layer and a shock-absorbing support mechanism, and is characterized in that the seat shell is formed by a seat surface and the lower folded edge of a circumferential curve surface which is in smooth connection with the seat surface; the overlooked contour of the seat shell is a round-corner and curve-edged isosceles triangle with the longitudinal span being smaller than the horizontal span; the lower folded edge section, of the circumferential curve surface, which corresponds to a left bevel edge, a right bevel edge and a bottom edge is an inward curve surface; a left inner oblique surface and a right inner oblique surface are arranged symmetrically left and right from the center of the seat surface to the top corner of a triangle on a front end to form a V-shaped groove; a left support curve surface pit and a right support curve surface pit which correspond to the node of the hucklebone are arranged symmetrically at intervals and extend from a groove edge on the rear end of the V-shaped groove to the rear end edge of the seat surface along both sides of the seat surface, and both sides of the seat surface are lower concave curves; the cladding layer is an elastic soft cushion which fixedly wraps on the surface of the seat shell, wherein the corresponding parts of the upper surface and the left and right support curve surface pits of the seat shell are support planes, and the other structures are matched with the seat shell. The health care bicycle seat capable of making hucklebone concave and perineum hanging has the advantages of perineum and hucklebone protection, breathability and perspiration, and balanced supporting.

A method provide a patient-specific guidance system developed from 3D bone models, which are generated based on the patient's 2D image data. The surgical guide that is generated from this 3D data has an exterior surface that conforms to the interior surface of the acetabulum of an individual patient. Once this custom guide is placed into the patient's acetabulum, desired 3D implant position data can be transferred from the preoperative image to the acetabulum during an operation. The custom made guide allows surgeons to place guide rods into either the acetabulum itself, or into the sidewall of the pelvis (ileum or ischium) according to a preoperative plan. This guiding system is also coupled with an offset stemmed acetabular component to allow precise implantation and secure fixation of an acetabular component in a predetermined 3-D position relative to the pelvis.