30 results about "Normal anatomy" patented technology

A method of image segmentation includes receiving a set of voxels, segmenting the set of voxels into a foreground group and a background group, and classifying voxels of the foreground group as either lesion voxels or normal anatomy voxels. The method also includes blocking the normal anatomy voxels and performing a second segmentation on voxels of the background group and the lesion voxels, the second segmentation forming a stage two foreground group comprising the lesion voxels and a portion of the voxels of the background group. The method further includes classifying voxels of the stage two foreground group as either stage two lesion voxels or stage two normal anatomy voxels.

An apparatus for the correction of wall chest deformities, such as "Pectus Carinatum", comprising: a bar (10) having a flattened cross-section, having a minimum bending strength according to the values defined by ASTM F382-95, plates (20) having a slot (21) in the medium portion so as to fit the corresponding end of the bar (10) and peripheral holes (23) for securing the bone parts. The bar ends comprise planar grooves (11-11') determining the wall thickness substantially similar to the height of the slot (21) of the plate (20). The wall of the grooves (11-11') has aligned holes (13) in order to form with the respective plate (20) and by using screws (30), a fixed removable attachment that allows the axial registration of the bar (10). Method for the correction of Pectus Carinatum using said apparatus in order to achieve a normal anatomic shape of the chest wall.

An apparatus for the correction of wall chest deformities, such as “Pectus Carinatum”, comprising: a bar (10) having a flattened cross-section, having a minimum bending strength according to the values defined by ASTM F382-95, plates (20) having a slot (21) in the medium portion so as to fit the corresponding end of the bar (10) and peripheral holes (23) for securing the bone parts. The bar ends comprise planar grooves (11–11′) determining the wall thickness substantially similar to the height of the slot (21) of the plate (20). The wall of the grooves (11–11′) has aligned holes (13) in order to form with the respective plate (20) and by using screws (30), a fixed removable attachment that allows the axial registration of the bar (10). Method for the correction of Pectus Carinatum using said apparatus in order to achieve a normal anatomic shape of the chest wall.

A method of segmenting a lesion (910) from normal anatomy in a 3-dimensional image comprising the steps of: receiving an initial set of voxels (520) that are contained within the lesion to be segmented; growing a region which includes the lesion from the initial set of voxels; identifying a second set of voxels (530) on a surface of the normal anatomy; determining a surface containing the second set of voxels which demarks a boundary (540) between the lesion and the normal anatomy; and classifying voxels which are part of the lesion.

The present invention relates generally to medical methods and systems used to restore the angle of His and treat hiatal hernias and other conditions of the lower esophagus. More particularly, the present invention relates to a method and system that allows fixation of the distal esophagus and fundus of the stomach directly to the diaphragmatic crus muscle. The present invention provides a method where the diaphragmatic crus muscle is identified and precisely located from within and through the gastrointestinal lumen followed by the placement of a translumenal anchor which connects and secures the esophagus and stomach to the diaphragmatic crus muscle. This procedure reduces the hiatal hernia, restores the normal anatomy and treats conditions associated with the lower esophagus.

The present invention relates generally to medical methods and systems used to restore the angle of His and treat hiatal hernias and other conditions of the lower esophagus. More particularly, the present invention relates to a method and system that allows fixation of the distal esophagus and fundus of the stomach directly to the diaphragmatic crus muscle. The present invention provides a method where the diaphragmatic crus muscle is identified and precisely located from within and through the gastrointestinal lumen followed by the placement of a translumenal anchor which connects and secures the esophagus and stomach to the diaphragmatic crus muscle. This procedure reduces the hiatal hernia, restores the normal anatomy and treats conditions associated with the lower esophagus.

A method of segmenting a lesion (910) from normal anatomy in a 3-dimensional image comprising the steps of: receiving an initial set of voxels (520) that are contained within the lesion to be segmented; growing a region which includes the lesion from the initial set of voxels; identifying a second set of voxels (530) on a surface of the normal anatomy; determining a surface containing the second set of voxels which demarks a boundary (540) between the lesion and the normal anatomy; and classifying voxels which are part of the lesion.

A method of analyzing a lesion in a medical digital image using at least one point contained within a lesion to be analyzed includes propagating a wave-front surface from the point(s) for a plurality of steps; partitioning the wave-front surface into a plurality of wave-front parts wherein each wave-front part is associated with a different portion of the wave-front surface corresponding to a previous propagation step; and analyzing at least one feature associated with each wave-front part to classify anatomical structures associated with the lesion and normal anatomy within the medical digital image.

A method of analyzing a lesion in a medical digital image using at least one point contained within a lesion to be analyzed includes propagating a wave-front surface from the point(s) for a plurality of steps; partitioning the wave-front surface into a plurality of wave-front parts wherein each wave-front part is associated with a different portion of the wave-front surface corresponding to a previous propagation step; and analyzing at least one feature associated with each wave-front part to classify anatomical structures associated with the lesion and normal anatomy within the medical digital image.

A manufacturing method for a posterior column lag screw 3D navigation module used for acetabulum fracture comprises the following steps that A, according to simulation reestablishing, 3D reestablishing is performed according to pelvis thin layer CT scanning data of an object with the acetabulum fracture so as to obtain an original 3D reestablished model, on the basis of the original 3D reestablished model, fracture block division is performed along the fracture line, and the femur head is removed so as to obtain a fracture block separation model, and on the basis of the fracture model, a single fracture block 3D space position is adjusted to recover the normal anatomic form of the acetabulum, so that a fracture reduction model is obtained; B, according to virtual posterior column slag screw implanting simulation, on the basis of the fracture reduction model, a posterior column slag screw implanting fracture reduction model is simulated with a cylinder on the fracture reduction model; C, according to obtaining of a navigation module simulation body, the navigation module simulation body is established according to the cylinder, so that the navigation module simulation body with screw channels is obtained; D, the navigation module is obtained through 3D printing. The manufactured navigation module has the advantages that the manufacturing technology is simple, precision is high, and safety is good.

A total knee replacement prosthesis is presented whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces comprise the inter-condylar as well as condylar regions.

A method and system for non-invasive assessment of coronary artery stenosis is disclosed. A patient-specific real anatomical model of a diseased coronary artery of a patient is generated from medical image data of the patient. A hypothetical normal anatomical model is generated for the diseased coronary artery of the patient. Blood flow is simulated in each of the patient-specific real anatomical model of the diseased coronary and the hypothetical normal anatomical model for the diseased coronary artery. A hemodynamic index is calculated using simulated blood flow rates in the patient-specific real anatomical model of the diseased coronary and the hypothetical normal anatomical model for the diseased coronary artery. In particular, fractional flow reserve (FFR) for the diseased coronary artery is calculated as the ratio of the simulated blood flow rate in the patient-specific real anatomical model of the diseased coronary artery and the simulated blood flow rate in the hypothetical normal anatomical model for the diseased coronary artery.

The invention discloses an artificial hip joint femoral stem prosthesis. The femoral stem prosthesis comprises a femoral stem cone, a femoral neck and a femoral stem which are sequentially connected;the femoral stem comprises a femoral stem proximal end, a femoral stem body and a femoral stem distal end which are integrally formed; the femoral stem proximal end is divided into a femoral stem proximal end inner side and a femoral stem proximal end outer side according to the angle of the central angle of a cross section, and the central angle corresponding to the femoral stem proximal end inner side is 120 degrees; the taper of the femoral stem proximal end inner side decreases along the femoral stem from near to far; the taper of the femoral stem proximal end outer side is constant; the femoral stem distal end is of a cylindrical structure or a tapered structure. The artificial hip joint femoral stem prosthesis can adjust the anteversion angle of the femur to a normal anatomical position in cases of combined femoral anteversion angle variation and narrow medullary cavity, and has a good implantation effect, is simple to operate and facilitates large-scale popularization and use.

The invention discloses a device for detecting pelvic floor organ displacement and clinical characteristics. The device comprises an inflatable and deflatable pressure balloon, a pressure reading instrument, a microprocessor and a display unit, wherein the pressure balloon is a flexible long-strip-shaped hollow elastic body, the air supporting strength of the pressure balloon meets the shape maintaining requirement, at least two detection balloon cavities are formed in the pressure balloon in a distributed mode, an inflation unit is connected with the pressure balloon to be controlled to be inflated and deflated, and a pressure reading meter is connected into all the detection balloon cavities through different channels and feeds back dynamic changes of the pressure of the detection balloon cavities. The pressure and the pressure change state of the corresponding position can be used as the evaluation basis of the normal anatomical position and the clinical characteristics of the organ. The portable device provided by the invention can enter a human body to realize a function without damage, forms a local or integral pressure distribution model of an organ through pressure detection of controllable point positions, further obtains a basis of a physical examination assessment report or medical judgment, and has the advantages of small pain, convenient operation, high positioningprecision, intuitive presentation of assessment result data and the like.

A device that allows for the predictable / guided anatomic drilling of claviclular tunnels for graft, suture, or combined graft / suture reconstruction of the AC joint is provided. The device simultaneously allows for larger clavicle tunnels which permit graft passage while providing protection, via stress shielding, of the bone between and adjacent to the bone tunnels. In this way, the surgeon is able to utilize anatomically placed clavicular tunnels large enough for graft passage (which reduces the mechanical failure rate of the reconstruction and most closely replicates normal anatomy) while reducing the risk of clavicle fracture, which has plagued other “anatomic reconstruction” techniques.

A total knee replacement whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces comprise the inter-codylar as well as condylar regions.

A system and method for identifying abnormal medical images are disclosed. The system can be configured to receive a medical image, segment an anatomical structure from the medical image to define a segmented dataset, register the segmented dataset to a baseline dataset defining a normal anatomical structure, classify, by an abnormality classifier, whether the anatomical structure within the medical image as either abnormal or normal, wherein the abnormality classifier comprises a machine learning algorithm trained to distinguish between normal and abnormal versions of the anatomical structure in medical images, and based on whether the anatomical structure can be segmented from the medical image, whether the segmented dataset can be registered to the baseline dataset, or a classification associated with the medical image output by the abnormality classifier, flagging the medical image as either normal or abnormal.

The invention discloses a novel degradable biological amniotic membrane composite lacrimal passage repair stent which comprises a stent body. The stent body comprises a composite inner core and an amniotic membrane tegment; the amniotic membrane tegment is wound on the composite inner core to form at least one pointed end; the composite inner core is formed by twisting at least one strand of amniotic membrane core and at least one strand of medical suture; one end of one strand of medical suture penetrates out of the pointed end. The novel degradable biological amniotic membrane composite lacrimal passage repair stent solves the key problem of smooth healing of a lacrimal ductule, has the effects of promoting repairing and healing of the mucous epithelium of a lacrimal passage, reducing scars, reducing inflammation and preventing re-adhesion, enables biological activity of the amniotic membrane to be kept and prolonged, can meet the requirement of clinical application for degrading time, enables a normal anatomy function of the lacrimal ductule to be recovered, does not need external force for extirpation and cannot cause secondary damage.

Medical devices used to assist walking by helping to support a user's weight comprise a series of elements angled with respect to each other at angles selected to honor certain normal anatomical relationships so as to provide a stable platform for supporting a user's weight while reducing injury. Optional additional elements provide cushioning and stability.

The invention discloses a bone destruction degree feature extraction system, which includes a joint statistical morphological model building module, a pathological morphological model matching module, and an abnormality detection and analysis module, wherein the joint statistical morphological model building module is used to construct a joint statistical morphological model, Extract specific morphological statistical features for each piece of bone; the pathological morphological model matching module is used to find a model instance closest to the pathological sample in the joint statistical morphological model, and limit the model instance to three times the standard of the average morphological model Within the difference, the influence of normal anatomical variation is eliminated, and the pathological changes are highlighted; the target information used by the abnormality detection and analysis module is the degree of osteogenesis and osteoclastion of each bone, by calculating the normal The negative distance realizes quantitative evaluation of osteoclast and osteoblast. In this way, the quantitative calculation of bone destruction evaluation indicators can be realized, and reference information can be provided for the evaluation of the position and degree of bone destruction in patients.

The invention provides a caliber-adjustable circular knife for treating anal fistula. The caliber-adjustable circular knife is mainly composed of a caliber-adjustable composite circular blade (1), anopening and closing connection auxiliary device (2) and a circular knife handle (3); each sub blade in the composite circular blade (1) is divided into a cutting edge part (11) and a knife back part (12), and the composite circular blade (1) is connected with the circular knife handle (3) through a directional hinge (21); and an elastic support rod (22) for providing expansion and convergence functions is connected with the knife handle and the blade. The caliber-adjustable circular knife conforms to the modern advanced medical concept, and the normal anatomical form and physiological functions of a patient are protected as much as possible while diseases are treated. The caliber-adjustable circular knife can be suitable for fistula with different pipe diameters through the adjustable caliber. The embarrassment of most anorectal doctors in the fistula stripping process (the anus function is damaged due to excessive stripping, and the fistula stripping operation is prone to failing) issolved through the standardized operation process, and the operation time is greatly shortened. The caliber-adjustable circular knife is safe and reliable in anal fistula stripping, easy and convenient to operate and easy to popularize, solves the technical problem of technical tough problem in anal function protective surgery, certainly enables the anal fistula function protective surgery to be widely popularized, and benefits patients.

A total knee replacement whose bearing surfaces are derived from an anatomically representative femur and a modified baseline tibial surface. The contacting femoral and tibial bearing surfaces include the inter-condylar as well as condylar regions. The modified baseline tibial surface is generated by modifying a baseline tibial surface. For example, the baseline tibial surface can be flattened mathematically to generate the modified baseline tibial surface.

A permanent acute occlusion implantable device for sterilization of human female and method are described for immediate occlusion of the fallopian tubes of the human female, wherein an structure having an a shape to the normal anatomy of the ostium of the fallopian tube device consisting of a sealing segment is placed to seal the ostium of the fallopian tube. The sealing segment of the device is encased in an elastomeric material to provide the sealing action once the device is delivered into the ostium of the fallopian tubes. The occlusion device is held in place due to the spring action of the intermediate connecting segment which in turn is connected to an expanding anchoring segment. The occlusion device is delivered to the final location via a delivery sheath which is threaded through a hysteroscope.

The invention discloses a novel degradable biological amniotic membrane composite lacrimal passage repair stent which comprises a stent body. The stent body comprises a composite inner core and an amniotic membrane tegment; the amniotic membrane tegment is wound on the composite inner core to form at least one pointed end; the composite inner core is formed by twisting at least one strand of amniotic membrane core and at least one strand of medical suture; one end of one strand of medical suture penetrates out of the pointed end. The novel degradable biological amniotic membrane composite lacrimal passage repair stent solves the key problem of smooth healing of a lacrimal ductule, has the effects of promoting repairing and healing of the mucous epithelium of a lacrimal passage, reducing scars, reducing inflammation and preventing re-adhesion, enables biological activity of the amniotic membrane to be kept and prolonged, can meet the requirement of clinical application for degrading time, enables a normal anatomy function of the lacrimal ductule to be recovered, does not need external force for extirpation and cannot cause secondary damage.

The invention discloses an intelligent navigation system capable of automatically identifying ultrasonic images. An ultrasonic detection element receives an instruction of an AI processing system, andvideo features of a normal anatomical position or an abnormal uterus image are collected, learned and stored; the AI processing system analyzes and processes various data collected by the ultrasonicdetection element; the AI processing system converts the processed data into driving and control signals; and the AI processing system maps the driving and control signals and a multi-angle mechanicalarm, controls the multi-angle moving mechanical arm to move in multiple directions, automatically adjusts the scanning direction of the ultrasonic detection element, finds a standard image and position of the uterus and then performs positioning, and the identification precision is improved to meet the clinical medicine requirement. Finally, a signal capable of controlling the action of the mechanical arm and key information assisting a doctor in diagnosis are returned, the ultrasonic image is identified, analyzed and processed through AI and converted into a signal, and the mechanical arm controls the ultrasonic detection element to track the movement of the uterus.

A device that allows for the predictable / guided anatomic drilling of claviclular tunnels for graft, suture, or combined graft / suture reconstruction of the AC joint is provided. The device simultaneously allows for larger clavicle tunnels which permit graft passage while providing protection, via stress shielding, of the bone between and adjacent to the bone tunnels. In this way, the surgeon is able to utilize anatomically placed clavicular tunnels large enough for graft passage (which reduces the mechanical failure rate of the reconstruction and most closely replicates normal anatomy) while reducing the risk of clavicle fracture, which has plagued other “anatomic reconstruction” techniques.