44 results about "Anterior superior iliac spine" patented technology

Orientation device for surgical use includes a frame and a level device attached to the frame. The feature may be oriented with a reference such as the Antero Superior Iliac Spine, the acetabulum or the operating table to position the pelvis or the device. The level device is adapted to define a reference plane. The device thus allows precise orientation with respect to the pelvis through use of a reference plane.

An instrument for establishing orientation of a pelvic prosthesis comprises a tri-pod having an angularly adjustable guide rod on it. The tips of the legs define a plane, and the guide rod is set by the surgeon to a defined orientation with respect to this plane on the basis of preoperative studies. In use, two of the legs of the instrument are positioned by the surgeon at defined anatomical locations on the pelvis (e.g., a point in the region of the posterior/inferior acetabulum and a point on the anterior superior iliac spine). The third leg then lands on the pelvis at a point determined by the position of the first two points, as well as by the separations between the third leg and the other two legs. The separations are adjustable, but are preferably fixed percentages of the separation between the first and second legs. The position of the guide rod then defines with respect to the actual pelvis the direction for insertion of a prosthesis.

A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.

A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.

A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.

The improved positioning device, for use in hip, pelvis or bariatric surgery, securely and safely supports a morbidly obese patient lying in the lateral decubitus position at one side of an operating table so the surgeon may stand close to the anterior side of the patient. The support device includes a double-ended bracket having a pair of oppositely positioned padded end portions secured to an angular bracket post adapted to securely mount to an operating table via a question mark-shaped bracket. The angular bracket arm vertically adjusts to support the patient on one side, with the padded end portions applied to bony prominences such as the symphysis pubis and the lower side anterior superior iliac spine. The support device is used in combination with a posterior pelvic support plate, and a pair of anterior-posterior chest support plates to retain the patient in a secure and stable manner during surgery.

Lower underwear to be put on a body for intimate contact therewith for the purpose of correcting distortion of the pelvis. The lower underwear is provided with a tightening band passing a right pubis proximity portion, a right anterior superior iliac spine proximity portion, a sacrum proximity portion, a left anterior superior iliac spine proximity portion and a left pubis proximity portion in this order when the lower underwear is put on the body. The lower underwear provided with such a band is capable of gradually correcting distortion of the pelvis and the like by tightening the pelvis without applying pressure on the abdomen.

A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.

The invention relates to an external fixing device of the pelvis at the lateral position in artificial hip-joint replacement, comprising a flat plate, a sliding plate, an operating arm, a sacrum fixing plate, an operating bed connecting and fixing piece, an anterior superior iliac spine fixing piece, a guide needle, a universal rotating shaft, a universal shaft seat and a fixed piece. A working method of the external fixing device of the pelvis at the lateral position in the artificial hip-joint replacement comprises the following detailed steps: (1) the device is fixed with the operating bed to lead a human body to be in the lateral position; (2) the sliding plate is adjusted to drive the anterior superior iliac spine fixing piece; (3) the anterior superior iliac spine fixing piece is adjusted; (4) a vertical needle body is parallel to the connecting line of the anterior superior iliac spines at the two sides, an inclined needle body expands outwards by 45 degrees, and inclines forwards by 15-20 degrees; and (5) an acetabulum placer is parallel to the inclined needle body. The external fixing device has the advantages that (1) the angle design of the inclined needle body in the two-in-one guide needle ensures the accuracy of the operation; (2) the accuracy, the firmness and the reliability of the pelvis fixing are ensured; (3) the operation is convenient; and (4) the wound is avoided.

The invention provides a positioning measuring device used for hip replacement surgery and a measuring method. Through the using of a high-precision sensor and a high-performance microprocessor to measure, the problems of manual error and body position error of rulers can be solved; and the measuring device can be installed and fixed on the anterior superior iliac spines of the hip pelvis of a patient with corresponding supporting tools to carry out measuring with the moving of the pelvis, and the patient is the measured target, so that the influences of patient standing positions on data canbe reduced. Through the measuring device and measuring method, surgery can be high in flexibility, for the specific conditions of the patient, surgical programs can be planned in advanced, so that suitable supine and lateral positions can be selected; and the data can be measured in real time during operation, through two-way data comparison and verification, better clinical curative effects can be achieved, and the probability of reoperation can be reduced. Based on a three-dimensional motion data model, the position plane of a human coronal plane can be accurately obtained according to three-dimensional motion data, so that the processing of angles can be more accurate.

The invention discloses a stationary fixture for pelvis biomechanics experiment. The fixture is connected to a mechanical testing machine by a base. A first anterior superior iliac spine baffle and asecond anterior superior iliac spine baffle of the fixture are respectively connected to a pubic tubercle baffle by a first sacrum stationary jaw and a second sacrum stationary jaw. A top tray of upper margin of pubic bone and a bottom board of lower margin of pubic bone are respectively vertically connected to the pubic tubercle baffle. The first sacrum stationary jaw and the second sacrum stationary jaw are connected to the top tray of upper margin of pubic bone. A sacrum fixing cross slab is fixed on the first sacrum stationary jaw and the second sacrum stationary jaw. A connecting rod is arranged on the lower surface of the top tray of upper margin of pubic bone. A back head of pubic bone is horizontally connected to the connecting rod. The lower head of pubic bone is vertically drilled through the bottom board of lower margin of pubic bone. With the fixture of the invention, the pelvis can be fixed by taking a standing posture to do experiment, and the substance of bone and the structure of pelvic are not destroyed by assembling or detaching the fixture.

The invention provides a spinal coronal plane balance evaluation device, which comprises a reference rod, two positioning rods and a measuring unit, the measuring unit is used for measuring the distance between the reference rod and a C7 vertebral spinous process, one end of each positioning rod and the reference rod are hinged at the same hinge point to form a positioning included angle, the other ends of the positioning rods are arranged on the back of a human body and correspond to the upper edge points of the two iliac spines respectively, and the angular bisectors of the reference rod andthe positioning included angle coincide, so that the reference rod coincide with the perpendicular bisector of the connecting line of the upper edge points of the two iliac spines of the human body,and the connecting line of the upper edge points of the two iliac spines of the human body is an anterior superior spine connecting line. The spinal coronal plane balance evaluation device can alwaysstably measure the distance between the perpendicular bisector of the anterior superior spine connecting line and the C7 vertebral spinous process, and the balance state of the spine coronal plane canbe effectively evaluated by stabilizing the measurement result through a built-in measurement unit.

The invention relates to a blood vessel segmentation method, an electronic device and a storage medium. The blood vessel segmentation method comprises the following steps: acquiring a medical image of a lower limb; acquiring a blood vessel segmentation image and a pelvic bone segmentation image according to the medical image; determining positions of an anterior superior spine vertex and a pubic tuberosity vertex according to the pelvis segmentation image; and according to the positions of the anterior superior spine vertex and the pubic tubercle vertex, segmenting the blood vessel segmentation image to obtain segmentation results of the iliac artery and the common femoral artery. Through the blood vessel segmentation method, the defect that the iliac artery and the common femoral artery cannot be accurately classified in the prior art is overcome, the blood vessel segmentation precision is improved, full-automatic blood vessel segmentation can be achieved through a computer, and the blood vessel segmentation efficiency is improved.

The invention relates to a femoral extramedullary positioning device for knee joint replacement, which is characterized by comprising an anterior superior spine fixing bow (1) and a first connecting rod (2), wherein the first connecting rod (1) is perpendicularly connected onto the anterior superior spine fixing bow (1); the other end of the first connecting rod is connected with an osteotomy positioner (3); the positioning device further comprises a measurement rod (4); and the measurement rod (4) is connected with the osteotomy positioner (3).The device has the advantages that: 1) the device is ingenious in overall structure design and convenient to mount, 2) with the adoption of the osteotomy positioner in a precise right angle connecting design and capable of carrying out multiple measurements in the technical scheme, the precision of the device is further guaranteed; and 3) a handle of the osteotomy positioner is designed with complicated and refined bifurcation shapes, groove shapes, scales and small holes.The bifurcation shape design can limit the connecting rod in the positioner and allow the connecting rod to be matched with the positioner in size, and a coronal can be parallel to the connecting rod.

The invention discloses a pelvis displacement measuring method based on a pelvis plain film. The method comprises the following steps of Step 1, X ray examination; Step 2, measuring basis building; Step 3, measurement and calculation; and Step 4, measurement result expression, wherein on a front and back position plain film, the anterior superior iliac spine (A) and the ischial tuberosity (B) areselected to be used as mark points; on an inlet position flat sheet , the sacroiliac joint front side (H), the anterior superior spine (G) and the sacrum endplate center (S) are selected to be used as mark points; on an outlet position plain film , the crista iliaca highest point (C), the anterior superior iliac spine (E) and the tuber ischiadicum (D) are selected to be used as mark points. According to the method, the pelvis front and back position, inlet position and outlet position X ray films are sufficiently utilized; whether the pelvis displacement occurs or not and the concrete displacement conditions are systematically measured; the reset path of the pelvis closed reduction is planned in an auxiliary way; the reset precision can be effectively improved; the operation time of theclosed reduction and the perspective time are reduced; and the bleeding quantity and the infection risk of a patient can be further reduced.

The invention relates to a clamping instrument of a pelvic fracture reduction robot. The clamping instrument is composed of an affected side main frame module, an affected side secondary frame module, an affected side lower frame module, a butt joint module, a bone needle clamping device and an uninjured side fixing frame module, wherein the affected side main frame module is used for fixing a bone needle of a pelvic anterior superior spine, the affected side secondary frame module is used for fixing a bone needle of a pelvic anterior inferior spine, and the affected side lower frame module is used for fixing a bone needle of a pelvic ilium; the butt joint module is used for rapidly connecting the clamping instrument with a surgical robot, the tool end module is connected with the affected side main frame module, and the robot end module is connected with the robot; the uninjured side fixing frame module is used for fixing bone needles placed into the pelvis on the uninjured side; the bone needle clamping device is used for clamping bone needles and has the advantages of being flexible in adjustment and tight in clamping. The clamping instrument has the remarkable advantages of being compact in structure, flexible to adjust, large in rigidity, firm to fix, easy to assemble and disassemble and the like, and can adapt to different space poses of bone needles according to the injury types of the pelvis of a patient to achieve stable clamping.