30 results about "Ct diagnosis" patented technology

The invention discloses a corona virus disease 2019 screening method and system based on deep learning. The corona virus disease 2019 screening method comprises the steps: detecting a lung lesion areaof CT by using a deep learning detection model, and conveying the lung lesion area of CT into a three-classification network, wherein three classifications comprise COVID-19, influenza A and non-infection symptoms; and through calculation processing, outputting a CT diagnosis result and a disease probability. According to the method, based on deep learning, characteristics of CT images are automatically learned to distinguish COVIDI-19, influenza A and healthy people, so that the method is high in accuracy, the overall accuracy of current testing reaches 86.7%, the diagnosis speed is high, and only 30-60 S is needed for one set of CT according to different slice numbers; and a user can upload a CT image file and calculate and output a CT diagnosis result and the disease probability through the corona virus disease 2019 screening system, so that operation is convenient, the speed is high, and the detection rate of COVID-19 is greatly increased.

An aqueous negative contrast agent for CT imaging of the gastrointestinal tract and the preparation method thereof. The agent is used in biological and pharmaceutical field. Its components and the weight percent are: hydrogel matrix 0.01-1%, micro-/nano-particles of the materials with low densities 5-50%, stabilization agents 0.1-5%, the rest is deionized water. The preparation method is: stabilization agents are added into the hydrogel matrix made of natural or synthetic hydrophilic polymers, then micro-/nano-particles of the materials with low CT densities are added or prepared, and uniformly dispersed in the hydrogel matrix. The CT density of the resulted aqueous negative contrast agent for CT imaging of the gastrointestinal tract is −30HU to −500HU. It can decrease the CT density inside the intestine lumen to lower than −30HU. The intestine wall can be depicted clearly and the CT signals intensities inside lumen are uniform. It is feasible for 3D images processing such as virtual endoscopy reconstruction with the negative contrast agent. The agent is safe, stable and nontoxic. It will not lead to diarrhea after administration. It is of great significance for the improved sensitivity and specificity of CT diagnosis for the diseases on the intestinal wall and lumen.

The invention discloses a stent for assisting computed tomography (CT) diagnosis of tarsometatarsal joint injury. The stent comprises a stent main body, a foot fixer, a pedal, an inner tube and an adjusting piece, wherein the inner tube is fixedly arranged on the stent main body; the adjusting piece is arranged on the inner tube in a rotatable and sliding mode; and both the foot fixer and the pedal are fixedly connected with the adjusting piece. The stent for assisting the CT diagnosis of the tarsometatarsal joint injury can assist a patient in maintaining a foot at a plantar flexion ectropion position in the CT diagnosis process, so that diagnosis is facilitated, the requirement of the CT diagnosis for the flexion direction of the foot of the patient is met, the CT diagnosis operation can be accurately performed, and the accuracy and the precision of the diagnosis result are ensured.

The invention provides a liver CT diagnosis system based on computer assistance. The liver CT diagnosis system comprises an image acquisition module, an image three-dimensional reconstruction module,an image enhancement module and an image segmentation module, wherein the image acquisition module comprises a CT machine and a computer, the CT machine imports acquired liver CT slice images into thecomputer, and the computer processes the liver CT slice images to obtain two-dimensional liver images; and the liver three-dimensional image reconstruction module is used for drawing and reconstructing the two-dimensional liver image to obtain a three-dimensional liver image. The image enhancement module is used for carrying out blood vessel enhancement processing on the three-dimensional liver image to obtain a blood vessel enhanced image; the image segmentation module is used for segmenting the blood vessel enhanced image; according to the CT diagnosis method for the liver based on computerassistance, scientific research personnel can conveniently research and know the position of the blood vessel in the liver area, and liver operation can be well assisted.

The invention provides a heteropolyacid nano-molecular medicine as well as a preparation method and an application thereof. The medicine comprises heteropolyacid or heteropolyacid salt molecules and a coating material coating the surface of heteropolyacid or the heteropolyacid salt molecules, wherein the heteropolyacid or heteropolyacid salt molecules have the structure shown in (I), (II) or (III). The heteropolyacid nano-molecular medicine can selectively interact with tumor cells and can be used as a contrast agent in magnetic resonance imaging and CT diagnosis of tumors; besides, the medicine molecules have strong oxidation-reduction quality and light sensitivity and thus can be used as medicines assisting in thermal therapy, meanwhile, the molecules have strong X-ray absorption capacity and thus can perform functions as auxiliary radiotherapy medicines, so that diagnosis and treatment of tumors can be realized simultaneously, integration of diagnosis and treatment can be realized, targeted treatment of tumors is enhanced, and the tumor treatment effect is improved.

The invention discloses a patient breath-holding monitoring device and method applied to CT scanning. The device includes a breathing mouthpiece, an air guide tube and a breath-holding monitoring host; the breathing mouthpiece is connected to the breath-holding monitoring host through the air guide tube to form an integrated structure, the breathing mouthpiece includes a biting part and a joint part, and a bottom opening of the biting part communicates with the joint part; the breath-holding monitoring host includes a shell, a breathing sensor and a host circuit board, the breathing sensor isconnected to the interior of a conductor groove of the host circuit board through an electric conduction patch plug, the shell is provided with a main airway and an air inlet and outlet of the breathing sensor, and the main airway of the breathing sensor communicates with the air inlet and outlet; and each end of the air guide tube is provided with a connection opening, one connection opening in one end of the air guide tube communicates with the joint part of the breathing mouthpiece, and one connection opening in the other end communicates with the main airway of the breathing sensor. When the device and method provided by the invention are implemented, the breathing mouthpiece is placed on a patient mouth to directly monitor patient breath-holding conditions during the CT scanning, so that the quality of CT scanning images is improved, and the accuracy of CT diagnosis results is improved.

The invention discloses a heart CT structural report system which comprises a structural processing module, a computer auxiliary diagnosing module, a database module, a template analyzing module, a display module, a storing module and an inquiring module. By means of the heart CT structural report system, a CT diagnosis report is structurally processed, a temperature and data are separated out, the template is automatically filled up according to actual needs to form a complete diagnosis report after the computer auxiliary diagnosing system obtains related case data, the work efficiency of a doctor is improved, and the heart CT structural report system has the advantages of being accurate, efficient, capable of saving time and labor and suitable for application and popularization.

The invention relates to the technical field of medical detection reagents. CT liver-specific contrast agent refers to the use of phagocytosis of kupffer cells in the reticuloendothelial system of the liver to specifically accumulate the contrast agent in the liver, which improves the sensitivity and specificity of CT diagnosis. At present, the research on macromolecular or granular CT liver-specific contrast agents is mostly focused on encapsulating conventional CT contrast agents with liposomes, which generally have disadvantages such as low encapsulation efficiency, low drug loading, and unstable preparations. The invention provides a liver-specific CT contrast agent and a preparation method thereof. It adopts ethyl cellulose as a carrier, wraps derivatives of triiodoisophthalic acid, and obtains iodine-containing ethyl cellulose microspheres.

The invention relates to a patient support system for standing position CT diagnosis, and belongs to the technical field of medical supports, the patient support system comprises a base and an upper seat for a patient to stand, and the upper seat is installed on the base in a lifting mode through a scissor arm system; the fixed end of the electric telescopic rod is installed on the base, and the electric telescopic rod is connected with the scissor arm system to drive the scissor arm system to stretch out and draw back; the back plate assembly is detachably and fixedly installed on the upper seat and used for a patient standing on the upper seat to lean on. Through the structure, the patient support system enlarges the human body detection range through the lifting upper seat, and is reasonable in structure and high in practicability.

The invention relates to the technical field of medical instruments, in particular to a positioning device for head CT diagnosis. According to the technical scheme, a fixing plate is arranged, a rectangular piece and a neck supporting assembly are arranged at the top of the fixing plate, a first two-way lead screw is arranged in the middle of the lower portion of the fixing plate, moving plates are evenly arranged on a rod body of the first two-way lead screw, and three sets of moving grooves are evenly and horizontally formed in the fixing plate; auxiliary positioning mechanisms are arranged at the positions, corresponding to the fixed plate moving grooves, of the moving plate, and each auxiliary positioning mechanism comprises a head top positioning assembly, a head middle area positioning assembly and a neck side positioning assembly. Through cooperation of the abutting block, the U-shaped piece, the threaded rod, the rectangular rod, the moving block, the connecting rod, the rotating piece, the two-way lead screw, the air bag and the push rod, the head of a patient can be positioned and supported at different positions, the head top can be supported in multiple directions according to the condition of the patient, and the head CT diagnosis positioning efficiency and stability are improved.

The invention discloses a system and method for monitoring breath holding of a patient by means of infrared distance measurement. The system comprises an infrared distance measurement mainframe, a jitter transfer device and a computer terminal; the jitter transfer device comprises a light reflection board, an abdominal protective sleeve and a communicating mechanism; the infrared distance measurement mainframe comprises a mainframe shell, a mainframe circuit board, an infrared emitting end, an infrared receiving end and a serial interface; the infrared emitting end comprises an infrared emitting tube and a convex lens; the infrared receiving end comprises an infrared receiving tube light filter; the mainframe circuit board comprises an infrared emitting circuit, an infrared receiving circuit, an amplifying circuit, an A/D converter, a single chip microcomputer, an RS232 to RS485 conversion circuit and an interface circuit; and the computer terminal is connected with the infrared distance measurement mainframe through the serial interface, and breath holding monitoring app software used for detecting a breath holding state of the patient is installed on the computer terminal. According to the system and method for monitoring breath holding of the patient by means of infrared distance measurement, the breath holding situation of the patient during CT scanning can be monitored bymeans of infrared distance measurement, the quality of CT scanning images is improved, and the accuracy of a CT diagnosis result is improved.

The invention relates to the technical field of tarsometatarsal joint treatment, in particular to a support for assisting CT diagnosis of tarsometatarsal joint injuries, and overcomes the defects that no supporting equipment is used for pressing soles during tarsometatarsal joint CT scanning, so that the radiography effect is not ideal, and the supporting equipment cannot adapt to the sizes of feet of different patients. A first supporting plate is welded to the top of the first supporting column, a second supporting plate is fixed to the top of the second supporting column through welding, a connecting rod is clamped to the bottom of the first supporting plate, connecting plates are fixed to the ends of the two sides of the second supporting plate through welding, and first rotary knobs are connected to the outer sides of the connecting plates through threads. According to the auxiliary support for diagnosing the tarsometatarsal joint, the shank of a patient is effectively supported, the foot is effectively fixed, the foot is pressed downwards, CT scanning is facilitated, and a doctor can judge the injury condition easily.

The invention relates to the technical field of medical instruments, and discloses a support for assisting CT diagnosis of tarsometatarsal joint injury, the support comprises a bottom plate, two bearing plates are fixedly mounted at the top of the bottom plate, and a plurality of first sliding rods are movably inserted into the outer surfaces of the two bearing plates. According to the support for assisting CT diagnosis of the tarsometatarsaljoint injury, a multi-angle adaptation structure is additionally arranged, a clamping structure replaces a traditional bolt structure, a sole massage structure is additionally arranged, and the problems that most supports cannot be adjusted for patients with different foot types, or the treatment efficiency is affected due to the fact that the adjusting amplitude is not large are avoided; the problems that an existing support needs to be disassembled by screwing a large number of bolts, the efficiency is low, emergency diagnosis is not facilitated, the existing support cannot move the sole, and when a patient wears the support for a long time, blood circulation of the bottom of the sole is not smooth, the recovery speed is low, and meanwhile the muscle atrophy of the foot of the patient can be caused are solved.

The invention discloses a patient transfer cart for CT diagnosis, and relates to the field of medical carts. The patient transfer cart for CT diagnosis comprises a transfer cart base and a stretcher plate. When the patient transfer cart for CT diagnosis is used, the stretcher plate and the supporting alignment top plate are designed in a split mode, and when a patient is transferred, the stretcher plate and the supporting alignment top plate can be separated firstly; mechanisms such as limiting supporting pipes and rectangular notches corresponding to the bottoms of the supporting alignment top plates are also designed on a lower flat plate of the CT diagnosis equipment, so that positioning of the stretcher plate is guaranteed, CT diagnosis and treatment are facilitated, the whole use function of the device is good, pains suffered by a patient who is inconvenient to move can be reduced, and the working efficiency of the CT diagnosis equipment is improved. When the stretcher plate is connected with the supporting alignment top plate, the overall supporting height of the stretcher plate can be adjusted through the lifting mechanism.

The invention relates to the technical field of CT equipment manufacturing, in particular to an emergency semitrailer CT. The emergency semitrailer CT comprises a semitrailer chassis steel beam; a compartment, electric hydraulic supporting legs, wheels and a semitrailer traction assembly are fixed to the semitrailer chassis steel beam; the compartment at least comprises a scanning room and an operation room; a CT scanning frame and a CT diagnosis bed are arranged in the scanning room; a CT installation and maintenance door and a patient access door are formed in the side wall of the scanning room; a CT power distribution cabinet, a main power distribution cabinet, a CT control cabinet and an operation table are arranged in the operation room; an air conditioner outdoor unit and an energy storage power source are arranged outside the compartment; and a doctor access door and an external observation window are formed in the side wall of the operation room; a contact door, a scanning observation window and steps are arranged between the operation room and the scanning room. According to the semitrailer CT equipment, CT equipment and a semitrailer are integrated; when the semitrailer CT needs to be moved and transported, only one tractor is needed, and flexibility and convenience are achieved; and the service life of the semitrailer is as long as 25 years which basically cover thecomplete service life of the CT.

The invention relates to the technical field of CT diagnosis, in particular to a body surface positioning device for CT diagnosis. The body surface positioning device comprises a first positioning piece, a second positioning piece and a clamping block, wherein the first positioning piece and the second positioning piece are the same in structure, evenly-distributed connecting ropes are arranged between and connected with the lower end of the first positioning piece and the upper end of the second positioning piece, a gluing layer is arranged at the lower end of the second positioning piece, fixing strips are fixedly arranged on the two sides of the first positioning piece, and the ends, away from the first positioning piece, of the fixing strips are fixedly connected with one end of a gooseneck pipe. When the body surface positioning device is used, the second positioning piece is fixed on the body of a patient through the gluing layer, and then the first positioning piece is fixed to a bed board through the clamping block; and in an axial CT scanning process, the second positioning piece fluctuates up and down along with the body of the patient, the position of the first positioning piece is kept unchanged, the second positioning piece and the first positioning piece are combined, so positioning precision can be effectively improved, and follow-up operation can be smoothly carried out conveniently.

The invention relates to a medical instrument and the technical field of medical instruments, in particular to a radiation CT diagnosis imaging instrument convenient to adjust. According to the technical scheme, the system comprises a diagnosis instrument and a diagnosis moving bed, and a pillow mechanism is arranged on the upper side of the diagnosis moving bed; the pillow mechanism comprises a shell, a plurality of lifting rods which are evenly distributed and can ascend and descend are arranged on the upper side of the shell, and a locking piece capable of fixing the lifting rods is arranged in the shell. The locking piece comprises a moving plate capable of moving transversely, and a plurality of long through holes matched with the lifting rods are formed in the moving plate. The heights of the multiple lifting rods are adjusted in a self-adaptive mode, so that the headrest composed of the multiple comfortable soft blocks is matched with the head shape of a patient, and the positions of the multiple lifting rods are limited through the driving mechanism; through operation of the driving mechanism, the head of the patient can be softly fixed through the head fixing mechanisms on the two sides, the head of the patient can be limited from moving randomly, and diagnosis is prevented from being affected.

The invention relates to the technical field of medical equipment, in particular to an efficient heat dissipation device of CT diagnosis equipment. In order to solve the problems that an existing heat dissipation device is limited in heat dissipation range and not high in efficiency on the CT diagnosis equipment, the technical scheme includes that the CT diagnosis equipment heat dissipation device comprises a CT diagnosis equipment outer shell, a heat dissipation air bellow is slidably connected to the inner side of the CT diagnosis equipment outer shell, a cleaning mechanism used for cleaning dust is installed on the outer side of the heat dissipation air bellow, and an angle adjusting mechanism is installed on the inner side of the heat dissipation air bellow; a heat dissipation air bellow is installed on the outer shell, a dustproof ventilation net is installed at an opening of the heat dissipation air bellow, a heat dissipation fan is installed on the angle adjusting mechanism and located on one side of the ventilation net, and the cleaning mechanism comprises a wave guide rail fixed to the inner side of the outer shell of the CT diagnostic equipment and a brush connecting arm rotationally connected with the heat dissipation air bellow. And the two brush connecting arms are connected with a cleaning soft brush. The angle of the cooling fan can be automatically adjusted, and the swing amplitude can be adjusted at will, so that the high temperature of the CT diagnosis equipment can be quickly dissipated.

Unfortunately, I suffered from prolapse of lumbar intervertebral disc which cannot be cured by taking medicaments and cause no death in the medical field at present, but causes unbearable pains for me. After careful reflection, I decided to use the medicament which cured the bony spur for my wife six years ago. The medicament was tied up at the lumbar intervertebral disc protrusion part and magically I could leave a sickbed to work in three days, and thirty days later, CT diagnosis showed that the protruded intervertebral disc was recovered and the prolapse of lumbar intervertebral disc was cured. I call the medicament as the medicament special for bony spur and apophysis (prolapse of lumbar intervertebral disc). The medicament special for the bony spur and the apophysis (prolapse of lumbar intervertebral disc) belongs to the management by drug management institutions and is a most welcome good medicament for patients, and is tied up at affected parts according to the method of the description only after an orthipedist in a hospital confirms that a patient suffers from the bony spur and the prolapse of lumbar intervertebral disc through CT images. 30 days later, because the potency of the medicament is infiltrated (absorbed by) into skins and muscles to recover and cure the formed the bony spur and the protruded intervertebral disc, the miraculous new medicament ends the history that no medicament can cure the bony spur and the prolapse of lumbar intervertebral disc in the medical field at present. I deliberate that the medicament can surely cure cervical intervertebral disc herniation and lumbar sprain, and may also has excellent curative effect of treating periarthritis humeroscapularis, arthritis, sciatica and similar diseases.