23 results about "Sternum bone" patented technology

The invention discloses a gradient degradation type personalized absorbable sternum fracture fixing plate and a preparation process, and belongs to the technical field of medical implant materials. Comprising an anatomical adaptive plate body and an integrated locking assembly, the plate body is of a partitioned structure of a middle supporting area and an edge buffering area, a gradient pore array penetrating through the thickness direction is formed in the surface of the plate body, and a hydroxyapatite-collagen composite coating is loaded on the inner wall of a pore; the plate body is made of a composite absorbable material through 3D printing forming and hot pressing post-treatment, and the composite absorbable material comprises, by weight, 60%-70% of polylactic acid-glycolic acid copolymer (PLGA, LA / GA = 75 / 25), 15%-20% of silanized magnesium alloy microwires, 5%-10% of hydroxyapatite nano-particles and 5%-10% of polycaprolactone (PCL). Space-time matching of the degradation rate and the bone healing process is achieved through the partition gradient structure, the magnesium alloy microwires enhance the mechanical property and release active ions to promote osteogenesis, and the method has the advantages of personalized adaptation, gradient degradation, bone regeneration promotion and the like.

Device and method of assisted anatomical localization The invention relates to a method and a device (2) of anatomical localization.The method comprises: obtaining an image (IM1) of a subject (UR2); detecting at least two first anatomical points (PT1) associated with the subject's skull; determining a first value (V1) representing a reference distance (D1) separating the first two anatomical points; detecting two second anatomical points (PT2) associated with the subject's shoulders; locating a sternal midline equidistant from the second anatomical points (PT2), the sternal midline intersecting at a point of intersection a segment defined by the second anatomical points (PT2); and determining coordinates (C1) of at least one target anatomical point (PT3) by calculating second distances (D2x, D2y) of said at least one target anatomical point with respect to the point of intersection, the second distances being determined from the first value (V1). Figure for the abstract: Fig. 1.

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and the QRS interval signals indicating ventricular activity in the ECG waveforms. In particular, the ECG electrodes on the electrode patch are tailored to be positioned axially along the midline of the sternum for capturing action potential propagation in an orientation that corresponds to the aVF lead used in a conventional 12-lead ECG that is used to sense positive or upright P-waves.

The invention discloses an adjustable heart fixing drag hook, and relates to the field of heart drag hooks, the adjustable heart fixing drag hook comprises a universal adjusting assembly, the front end of the universal adjusting assembly is provided with a drag hook assembly, and the rear end of the universal adjusting assembly is provided with a clamping assembly; according to the sternum retractor, the retractor body is stably clamped on the sternum retractor, manual hand holding is completely replaced, the series connection structure of the columnar block and the spherical block is matched with the pull rope locking mechanism, adjustment of the retractor at any angle and depth in the three-dimensional space is achieved, switching from adjustment to the locking state can be easily completed through one rotary knob, and the operation is convenient. After locking, the structure is stable, force conduction is direct and reliable, it is ensured that the traction position cannot deviate due to tissue elasticity or external force, an operator does not need to be distracted to maintain the position of the drag hook, interference with the operation space of an assistant is not needed, all energy can be concentrated on fine surgical operation, physical exhaustion is reduced, and the operation efficiency is improved. And the smoothness and the efficiency of the operation are also obviously improved.

The sternum fixing band comprises an adjusting band assembly, one side of the adjusting band assembly is connected with one end of a first clamping plate, the other side of the adjusting band assembly is connected with one end of a second clamping plate, the other end of the first clamping plate is connected with one end of an elastic band, and the other end of the elastic band is connected with the other end of the second clamping plate. The other end of the elastic band is connected with the other end of the second clamping plate; a first shielding plate is detachably arranged at the position, corresponding to the adjusting band assembly, between the first clamping plate and the second clamping plate, and a second shielding plate is detachably arranged at the position, corresponding to the elastic band, between the first clamping plate and the second clamping plate. According to the utility model, the adjusting belt assemblies are arranged on the two clamping plates, so that the tightness is convenient to adjust, and the two clamping plates are convenient to loosen when the two clamping plates are not repeatedly tensioned; the two shielding plates are arranged, so that the wound can be conveniently shielded and cleaned, the back of the patient can be conveniently cleaned, the safety of wound recovery is ensured, and the use comfort of the patient is also improved.

The invention discloses a cardiopulmonary resuscitation device based on pressure sensing and carotid artery detection and a use method. A flexible pressure sensing unit is adopted to accurately monitor the pressure and frequency of pressing in the cardiopulmonary resuscitation process, whether intermittent stopping exists or not, the intermittent stopping duration, the sternum sinking depth, the sternum springback degree and the chest ventilation condition; meanwhile, a carotid artery blood supply detection device is adopted to monitor the blood supply and backflow conditions of the patient, and a control feedback unit carries out visual and voice real-time feedback after comparison and judgment according to a set key index threshold value to guide medical staff to adjust the cardio-pulmonary resuscitation pressing operation; individualized cardio-pulmonary resuscitation core index threshold values and blood supply key index threshold values are provided for different crowds, standardization and blood supply states of cardio-pulmonary resuscitation operation of different crowds are recognized more accurately, linkage of pressing operation, monitoring, control and feedback is achieved, and individualized accurate treatment is achieved.

The utility model relates to the technical field of simulation dolls, and provides a skeleton connecting structure which comprises a sternum, arm bones, a first mounting sleeve and a second mounting sleeve, the sternum comprises a front chest part and a rear chest part which are detachably connected, the first mounting sleeve is connected to the front chest part, and the second mounting sleeve is connected to the rear chest part; after the front chest part and the rear chest part are connected together, a mounting cavity is formed between the first mounting sleeve and the second mounting sleeve; the arm bone comprises a shoulder joint and a front arm which are connected with each other, the shoulder joint is connected with a first connecting ball, and the first connecting ball is rotatably arranged in the mounting cavity. The simulation doll has the advantage that the parts forming the simulation doll can be detached and replaced conveniently.

This utility model discloses a duckbill-shaped intraoperative suction device, comprising a suction head, a suction tube, and a negative pressure suction device connected in sequence. The suction head is a flat tubular structure with a thickness smaller than its length and width. One end of the suction head along its length is directly or indirectly connected to and communicates with the suction tube, while the other end of the suction head along its length is a closed end or has an end through hole. Multiple through suction holes are also distributed on the suction head. This duckbill-shaped intraoperative suction device replaces the traditional cylindrical suction head with a duckbill-shaped, flat tubular structure. The suction head has a thin and flat shape, making it better suited for patients undergoing reoperation, especially children. It can be inserted behind the sternum in a very small space and increases the area of ​​protection behind the sternum, helping to avoid damage to the heart and major blood vessels behind the sternum during a second thoracotomy.

The invention discloses an ultrasonic evaluation device for antenatal sternum development, and the device comprises a data obtaining module which is used for obtaining ultrasonic data of a to-be-measured fetus through an ultrasonic diagnostic apparatus, and the ultrasonic data comprises a measured value of the length of the sternum of the fetus and a measured value of the head circumference; the prediction module comprises a storage unit; the storage unit is used for storing pre-established fetal sternum development prediction parameters, the prediction parameters are determined based on a statistical relationship of a ratio of a sternum length to a head circumference of a normal group fetus, and the prediction parameters represent a sternum development rule independent of gestational weeks; the prediction module is used for calling the prediction parameters in the storage unit according to the measured value of the head circumference of the to-be-measured fetus, and calculating to obtain a predicted value of the sternum length of the to-be-measured fetus; and the evaluation module is used for comparing the measured value of the sternum length of the fetus to be detected with the predicted value of the sternum length, and evaluating the sternum development condition of the fetus to be detected according to a comparison result.

Surgical suture assemblies, and methods of their use, are disclosed having configurations suitable for closure of biological tissue, including the bony tissue of the sternum. The surgical suture assemblies described or contemplated herein have physical characteristics that help to mitigate undesirable issues, such as bleeding.

The application relates to the technical field of healthcare informatics, in particular to a seismocardiogram analysis system and method based on accelerometer data, wherein the system comprises a heart vibration detection unit, a motion artifact detection unit and a data processing unit. The heart vibration detection unit is arranged to collect a sternum vibration signal generated by heart activity. The motion artifact detection unit is arranged to detect a sternum posture signal generated by thoracic activity during breathing. In the application, the data processing unit acquires signals of the heart vibration detection unit and the motion artifact detection unit, encodes the signals into vector group data, performs digital filtering on the vector group data, preliminarily performs band-pass filtering to retain only low-frequency signals, and performs modal decomposition on the sternum vibration signal based on a VMD algorithm to decompose the SCG signal in the sternum posture signal based on parameter characteristics of the sternum posture signal as a constraint condition.

The invention provides application of 68Ga-FAPI in preparation of related reagents for sternum deep wound infection, and belongs to the field of medicine. The invention provides application of 68Ga-FAPI in preparation of related reagents for early diagnosis, detection, tissue positioning, surgical debridement guidance and post-surgical debridement detection of deep sternum wound infection. By utilizing the FAP specific targeting effect of the 68Ga-FAPI, the accuracy of the 68Ga-FAPI in the aspects of diagnosis, detection and the like is superior to that of a traditional tracer agent, the high focus and background contrast ratio of the 68Ga-FAPI can accurately position infected tissues, and the 68Ga-FAPI has high conversion application value for guiding surgical debridement and postoperative monitoring.

The invention relates to the technical field of medical instruments, and discloses a torsion type anatomical locking steel plate for sternoclavicular joint dislocation and a using method thereof.The torsion type anatomical locking steel plate comprises a plate body section, a transition section and a hook body section, the plate body section is an arc-shaped plate suitable for being attached to the anatomical contour of the front side of the near end of the clavicle, and a plurality of locking holes are formed in the plate body section to serve as fixing holes; the far end of the hook body section is provided with a flat hook body used for being hooked behind a sternum handle. The transition section is connected between the plate body section and the hook body section and is of a space torsion structure which smoothly extends from the plate body section to the hook body section. The plate body section is in arc fit with the contour of the near end of the clavicle, the fixing holes are distributed in a staggered mode and are spherical countersunk head taper threaded holes, the composite holes integrate the locking and pressurizing functions, the hook body section is provided with anti-slip barbs, the transition section is in spatial torsion connection, all the parts cooperate to improve the dissection suitability and stability, stress is dispersed, screw loosening and bone damage are reduced, and the fracture resistance is improved. Reliable support is provided for dislocation reduction of the sternoclavicular joint, and fracture around the sternoclavicular joint and healing of the sternoclavicular joint are guaranteed.

The utility model relates to puncture tool technical field, concretely for bone marrow puncture needle, including needle tube, needle tube is used for puncture extraction bone marrow, the lower extreme of needle tube is installed with needle tube seat, the inside of needle tube is provided with core needle, the lower extreme of core needle is installed with core needle seat, the end of adjusting sleeve is provided with inclined annular surface to adapt the use condition of 45 degree -60 degree inclined needle insertion of sternum bone marrow puncture, core needle seat is equipped with the lock catch, the limiting block is set up on needle tube seat, when the tip of core needle is pressed, the lock catch is hooked needle tube seat through the cooperation with limiting block, prevents core needle from retreating, the convex point is equipped on core needle seat for preventing core needle seat from rotating freely and taking out. In the bone marrow puncture needle, the inclined annular surface of adjusting sleeve end head, perfect adaptation 45 degree -60 degree inclined needle insertion of sternum bone marrow puncture use condition, solve the problem that the small observation field of operator can be observed when the traditional puncture needle punctures, and the discomfort of patient skin, make puncture operation more accurate, convenient.

The application discloses a protective rear blunt impact test system based on a bionic human body trunk target, which comprises a fiber grating demodulator, a charge amplifier, a data collector, an upper computer, an acceleration sensor, a fiber sensor, a plurality of pressure sensors, a bionic skeleton, bionic muscles, a bionic heart, a bionic liver and a bionic lung. The acceleration sensor is glued behind the sternum of the bionic skeleton, the fiber sensor is pasted on the rib of the bionic skeleton, and the plurality of pressure sensors are respectively pasted and arranged on the front surfaces of the bionic heart, the bionic lung and the bionic liver. The pressure sensor, the acceleration sensor and the fiber sensor are arranged on the bionic human body trunk target, the charge amplifier is connected with the pressure sensor and the acceleration sensor, the fiber grating demodulator is connected with the fiber sensor, the data collector is connected with the charge amplifier, and the upper computer is connected with the fiber grating demodulator and the data collector. The application can provide a basis for personnel injury assessment.

The invention relates to a poultry meat proportion rapid sorting method and device based on an X-ray machine and a medium. The method comprises the steps that S1, an X-ray image of a to-be-detected breeding poultry is collected; s2, a sternum region and a skin boundary are obtained based on X-ray image recognition; s3, drawing a normal line at the sternum vertex to obtain an intersection point of the normal line of the sternum vertex and the skin boundary as a first surface point, and obtaining an initial bone-skin distance based on the distance from the sternum vertex to the first surface point; s4, obtaining an included angle between the optical axis direction of the X-ray machine and the normal direction of the first surface point as a consistency difference angle, obtaining a sternum integrity proportion and a sternum main axis attitude angle based on the sternum region, and correcting the initial bone-skin distance based on the consistency difference angle, the sternum integrity proportion and the sternum main axis attitude angle to obtain a corrected bone-skin distance; and S5, obtaining a meat proportion grading result based on the corrected bone-skin distance. Compared with the prior art, the poultry meat proportion sorting device can realize poultry meat proportion sorting based on the X-ray machine.

An apparatus for cutting open a slaughtered poultry body suspended by the legs and already cut free in the region of the cloaca to form a vent opening includes a supporting apparatus for holding / positioning the poultry body during cutting, a tensioning device with a tensioning means for tensioning abdominal skin of the poultry body, and a separating device having at least one separating knife for making a longitudinal cut in the tensioned abdominal skin between the vent opening the sternum tip. The tensioning means is in the form of a knife carrier, with the separating knife pivotably mounted on the carrier to form a unit. The knife is movable relative to the carrier from a standby position, with the knife completely covered inside the carrier, into a cutting position, with the knife protruding from the carrier, and back. A corresponding method is disclosed.

The invention belongs to the technical field of cardiopulmonary transplantation, and discloses a sternum and rib retractor for cardiopulmonary transplantation, which comprises a fixing component and an adjusting component slidably mounted on the fixing component, a first distraction component is mounted on the outer wall of the fixing component, a plurality of air bags are mounted on the outer wall of the first distraction component, the air bags are in contact with the sternum of a patient during expansion, and the adjusting component is slidably mounted on the fixing component. A cushion layer is formed to prevent the sternum from being in direct contact with metal of the retractor, a fixing cavity is formed in the fixing assembly, and an extrusion plate is installed on the outer wall of the fixing cavity in a penetrating mode, so that air enters the air bag through a pipeline, and the air bag expands to conduct buffering protection on the sternum of a patient. When the sternum distraction device is used, the distraction plate is embedded into the sternum of a patient, the handle drives the fixing block and the adjusting bolt to rotate, the position of the distraction plate is adjusted, and the adjusting function is achieved. The air bag dynamically adapts to the sternum form, the retraction pressure is dispersed, compression necrosis of local tissue is avoided, and the sternum tissue of a patient is effectively protected.

Systems and methods include a method to fuse two sections of bone. The method includes various operations such as accessing the chest cavity (e.g., by severing the sternum) and preparing the sternal edges of the two sections of bone. Sternal wires are implanted around the two sections of bone to create a cradle in a space between the two sections of bone. Cancellous bone tissue may be harvested from the patient and used to hydrate an implant before trimming the implant and / or placing the implant in the cradle. The sternal wires are tightened to compress the implant between the two sections of bone; and the ends of the sternal wires are tied together to create a sternal structure comprised of the implant tightly compressed between the two sections of bone. The sternal construct can act as a bone gasket to improve healing and fusing for the two sections of bone.

The invention belongs to the technical field of medical instruments, and discloses a sternum fixator. The sternum fixator comprises a first bone setting piece, a second bone setting piece and a locking unit, a first lap joint part of the first bone setting piece is provided with a positioning adaptive hole, a first centering positioning groove and a second centering positioning groove, one side of the first centering positioning groove is communicated with the side wall of the positioning adaptive hole, and the other side of the first centering positioning groove is communicated with the side wall of the second centering positioning groove. The other side of the first centering positioning groove is communicated with the side wall of the second centering positioning groove; a second overlapping part of the second bone connecting piece is provided with a positioning adapter head, a first centering positioning section and a second centering positioning section, the first centering positioning section is embedded in the first centering positioning groove, the second centering positioning section is embedded in the second centering positioning groove, the positioning adapter head is inserted in the positioning adapter hole, and the positioning adapter head is inserted in the positioning adapter hole. The first arc-shaped clamping hook part and the second arc-shaped clamping hook part are used for being clamped into rib gaps of the sternum respectively. After the sternum median incision is completed, the sternum is reset and fixed, and sternum sclerotin cannot be damaged.

The utility model discloses a sternum plate upper and lower claw forming die which comprises a one-time forming die. Each of the primary forming mold and the secondary forming mold comprises an upper mold plate and a lower mold plate; the one-time forming die further comprises a one-time male die and a one-time female die, wherein the one-time male die is installed on the upper die plate; the primary female die is installed on the lower die plate, the primary female die is provided with a primary die cavity, and the primary male die is matched with the primary die cavity; the positioning plate is arranged in the primary die cavity, and a second positioning pin hole is formed in the positioning plate; the positioning pin is matched with the first positioning pin hole and the second positioning pin hole; the polyurethane rubber is arranged on the primary female die, and the polyurethane rubber abuts against the positioning plate. The upper claw and the lower claw of the sternum plate are formed through the primary forming die and the secondary forming die respectively, the forming difficulty of the upper claw and the lower claw of the sternum plate is lowered, the sternum plate can be fixed conveniently in the forming process, and therefore the size of the formed sternum plate is more stable.