15950 results about "Medical instruments" patented technology

An exemplary image segmentation method and system that employs, in a deep neural network, (i) an attention gate that fuses features with skip connections and (ii) a graph or multi-scale convolutional attention module that enhances the long-range and local context. The segmented region or image data derived in part from the segmented region can be subsequently employed for diagnosis, controls, planning, assessment, or analysis of various diseases. The image data can be medical images (e.g., from medical instruments), sensor images or videos (e.g., from smart phones, cameras, satellites, etc.), as well as 3D objects or volume.

A recombinant humanized collagen and a preparation method therefor. The recombinant humanized type III collagen can be efficiently and stably expressed in three expression systems of yeast, Escherichia coli, and CHO cells, and has the biological activity superior to that of a commercially available collagen product. The recombinant humanized type III collagen has structural characteristics and functional activity similar to those of a natural collagen, and thus has wide application prospects in biomedical materials, tissue engineering products, cosmetics, foods, health care products or drugs, medical instruments, medical cosmetology and the like.

A system, apparatus and method directed to placing a medical instrument in a patient body, where the system includes the medical instrument having a first optical fiber, a console and an interconnect having a second optical fiber to receive incident light from the console and propagate the incident light to the medical instrument. The interconnect includes a predetermined bend along its length, such that logic of the console may determine a positioning and an orientation of the medical instrument relative to the predetermined bend. Additionally, the logic may generate a display of the medical instrument based on the reflected light signals and the determination of the positioning and the orientation of the medical instrument relative to the predetermined bend, where the display may be rendered as an overlay on an ultrasound image.

Disclosed herein is a system, apparatus and method directed to placing a medical instrument in a vasculature of a patient body, where the medical instrument includes an optical fiber having one or more core fibers. The system also includes a console having non-transitory computer-readable medium storing logic that, when executed, causes operations of providing an incident light signal to the optical fiber, receiving a reflected light signal of the incident light, processing the reflected light signals associated with the optical fiber and determining a location of a distal tip of the medical instrument within the patient body. The medical instrument may be steerable in one of various methods including having a predetermined curvature, a distal tip that is magnetic, magnetized, metallic or ferrous and is steerable by an external magnetic device or a having a variable stiffness at a distal tip.

The invention relates to the technical field of medical instrument control, in particular to a lung biopsy sampling needle stabilizing method and system based on dynamic respiration compensation. The stabilizing method comprises the following steps: acquiring a respiratory movement signal of a patient in real time through a multi-source biosensor, wherein the multi-source biosensor comprises an optical fiber strain sensor array, a diaphragm myoelectricity sensor and a respiratory airflow sensor which are deployed at the chest and abdomen. According to the method, millimeter-microsecond-level accurate and stable control over the lung biopsy sampling process is achieved by establishing a cooperation mechanism of a breathing phase-displacement nonlinear mapping model and a macro-micro composite driving framework. The biological rationality of displacement prediction is improved through deep coupling of multi-mode breathing signals, and the chest wall non-uniform deformation gradient is analyzed in space based on cross topology deployment of an optical fiber strain sensor in an intercostal space area in combination with cross-scale feature fusion of myoelectricity and airflow sensing.

The invention discloses a laser cutting method for cutting complex shapes, and particularly relates to the field of laser cutting. A three-dimensional curved surface model of a to-be-cut workpiece is obtained, and a surface normal tensor field is constructed; extracting a driving point set based on the curvature derivative and generating a sliding path network; constructing a laser power density mapping model in combination with the thermal diffusion response model and the thermophysical parameters of the material; thermal feedback images are collected in the cutting process, an energy offset function is constructed, laser focus displacement and the scanning rate are dynamically adjusted through fuzzy control, and closed-loop control over power, paths and thermal feedback is achieved; according to the method, self-adaptive adjustment of laser power distribution, curved surface adaptation of a cutting path and thermal field real-time compensation in the machining process can be achieved under a complex geometric structure, the cutting precision, stability and energy efficiency are effectively improved, and the method is suitable for laser machining application of high-requirement complex structures such as aerospace, mold manufacturing and medical instruments.

To provide an optical system capable of enhancing coupling of light from a light source to an optical fiber, particularly an optical system that can be incorporated into medical instruments such as endoscopes.SOLUTION: There is provided an optical system. The optical system comprises a lens including an input surface for receiving light from at least one light source and an output surface through which the light exits the lens, the lens further including a peripheral surface extending between the input surface and the output surface and configured to direct, via total internal reflection, at least a portion of the light incident thereon through the output surface to an output focal point. The optical system can further comprise a tapered light pipe optically coupled to the lens and a light guide (e.g., one or more optical fibers) that is optically coupled to the tapered light pipe. The lens directs the received light to an output focal point that is disposed within the tapered light pipe.SELECTED DRAWING: Figure 3A

Systems and methods for automatically populating a post-operative report of a surgical procedure are disclosed. A system may include at least one processor configured to implement a method including receiving an identifier of a patient, an identifier of a healthcare provider, and surgical footage of a surgical procedure performed on the patient. The method may include analyzing frames of the surgical footage to identify phases of the surgical procedure based on interactions between medical instruments and biological structures and, based on the interactions, associate a name with each phase. The method may include determining a beginning of each phase and associating a time marker with the beginning of each phase. The method may include populating a post-operative report with the patient identifier, the names of the phases, and time markers associated with the phases in a manner that enables the health care provider to alter the post-operative report.

Blood vessel recognition and needle guidance systems, components, and methods thereof. A console can be configured to initiate a target recognition process for recognizing an anatomical target, such as a blood vessel, of a patient and a needle guidance process for guiding insertion of a needle into the anatomical target using ultrasound-imaging data received by the console. The system can perform target identification based on machine learning models which can be trained to recognize targets based on the ultrasound image. The ultrasound probe can be configured to provide to the console electrical signals corresponding to the ultrasound-imaging data. The ultrasound probe can include an array of transducers and, optionally, an array of magnetic sensors respectively configured to convert reflected ultrasound signals from the patient and magnetic signals from the needle, when magnetized, into the electrical signals.

The invention discloses a human body intravascular positioning support, and relates to the field of medical instruments. Comprising a metal wire support which is used for expanding in a blood vessel of a human body to dilate the blood vessel, a plurality of positioning units are arranged on the metal wire support, and each positioning unit comprises a spring and a penetrating type positioning head fixedly connected with the far end of the spring; the near end of the spring is fixedly connected with the metal wire support, and the penetrating type positioning head is used for penetrating into the inner wall of a blood vessel to achieve positioning when the metal wire support is unfolded. Through the design that the spring is combined with the positioning unit of the piercing type positioning head, the unification of stable fixing and safe taking-out of the intravascular positioning stent is achieved.

The invention discloses an insertion part, an endoscope and a negative pressure suction assembly, and relates to the technical field of medical instruments, the insertion part comprises a first section and a second section, the first section is provided with a front end assembly, and the first section is further provided with a first channel. The insertion part can be inserted into the sheath tube, and a fluid cavity channel is formed between the sheath tube and the insertion part. The blocking area of the first section can be matched with the inner wall of the sheathing canal so as to block a fluid cavity channel between the sheathing canal and the insertion part. Negative pressure suction force is formed in the fluid cavity channel through an external suction device and the like. As the blocking area blocks the fluid cavity channel, the negative pressure suction force can be transmitted to the first opening or the second opening and then extends to the position near the far end of the insertion part through the first channel. Negative pressure suction force in the sheath tube can be transmitted to the distal end of the negative pressure suction fitting to extend the suction range of the introducer sheath to the distal end of the insertion portion. Therefore, stone fragments in the deep position of the affected part can be sucked out, stone fragment residues are avoided, and the using effect is improved.

The utility model relates to the field of medical instruments, in particular to an endoscope cleaning device which comprises a sleeve and a handle connected to one end of the sleeve, the sleeve is provided with a main cavity for an endoscope to penetrate through and further provided with an auxiliary cavity, a transmission wire is arranged in the auxiliary cavity, an endoscope wiping block is arranged at the end, penetrating out of the sleeve, of the transmission wire, and the endoscope wiping block is connected with the handle. The other opposite end of the transmission wire is fixedly connected with a transmission structure in the handle, the transmission structure comprises a transmission groove and a positioning column which are matched with each other, and the endoscope wiping block is driven to do rotary progressive movement through relative movement of the transmission groove and the positioning column, so that the endoscope lens is wiped; in the operation process, the lens can be cleaned without taking out the endoscope, and after cleaning is completed, the gear can be adjusted to move the cleaning block to the position where the visual field is not blocked.

The invention belongs to the technical field of medical instruments, and discloses an intelligent artificial limb which is characterized in that a swing hydraulic cylinder is arranged at the bottom of a joint head, a shank support is connected with a rotating shaft of the swing hydraulic cylinder and can rotate around the rotating shaft, an output shaft of a motor is connected with a valve rod of a flow valve, and a valve element of the flow valve is connected with an oil way of the swing hydraulic cylinder; a rotating shaft of the angle sensor is connected with the rotating shaft; the hydraulic resistance is adjusted through a motor, and the performance of the intelligent artificial limb in the aspects of safety, flexibility and movement precision is remarkably improved through accurate sensor feedback and an intelligent control system. The invention further discloses a control method of the intelligent artificial limb, the controller calculates the dip angle value of the thigh according to the value of the angle signal and the value of the dip angle signal, and a plurality of walking modes are preset in the controller; according to the invention, the angle and inclination angle signals are collected in real time, and the hydraulic resistance of the knee joint is intelligently adjusted according to multiple preset walking modes, so that the walking experience and safety in different motion scenes are optimized.

The invention relates to the technical field of medical instruments, in particular to a bendable minimally invasive surgery electric hook with a smoke suction function. Comprising a smoke suction pipe, a handle assembly, an electrode pipe, a multi-stage bending assembly and an electric hook. The smoke suction pipe is fixedly connected to an outer smoke suction pipe of the handle assembly, an adjusting part is movably connected to the end of the handle assembly, the electrode pipe is arranged on the adjusting part in a penetrating mode and fixedly arranged in the handle assembly, and a control module is arranged in the handle assembly and electrically connected with the electrode pipe; the multi-stage bending assembly is fixedly arranged at the end of the electrode tube, a movable part is further arranged in the electrode tube and fixedly connected with the steel wire set, and the electric hook is fixedly arranged at the end of the extending end of the electrode tube and extends out. The adjusting piece is controlled to drive the movable piece to move in the electrode tube, and then the steel wire set is driven to pull the multi-stage bending assembly to conduct bending movement. The bending electric hook can integrate a real-time smoke suction function in a flexible bending scene, and the cooperation problem of bending operation and smoke removal in minimally invasive surgery is solved.

The invention relates to the technical field of medical instruments, and discloses a minimally invasive surgery system based on artificial intelligence. Comprising a target identification and positioning module, a multi-mode sensing module, a self-adaptive control module, a man-machine interaction module and a scene adaptation module. The target recognition and positioning module positions an operation target in real time through image recognition and a deep learning algorithm; the multi-mode sensing module collects the stress and movement track of an instrument and physiological signals of a patient. The self-adaptive control module adjusts movement parameters of the instrument according to the data; the man-machine interaction module displays data and provides an operation interface; the scene adaptation module adjusts the instrument form and function according to the operation type. In addition, the system also comprises an operational stability evaluation module, an instrument life prediction module and a biological signal fusion module. The system can achieve precise positioning, real-time monitoring and intelligent control, and the precision, safety and operation convenience of minimally invasive surgery are improved.

The invention relates to the technical field of medical instruments, in particular to a nicking instrument based on a paper-cut structure, which comprises a destressing sleeve and a catheter seat, and further comprises a pushing section, a metal tube and a hollow head, the right end of the destressing sleeve is connected with the catheter seat, the pushing section is mounted at the left end of the destressing sleeve, and the other end of the pushing section is connected with the metal tube; the pushing section and the metal tube are coaxially connected, a PTA balloon penetrates through the catheter base, the stress relieving sleeve and the pushing section and enters the metal tube after penetrating through the pushing section, the PTA balloon is embedded in the metal tube, the tail end of the metal tube is connected with a bullet-shaped hollow head, when the PTA balloon is full, the surface of the cut metal tube begins to expand, and when the surface of the cut metal tube is expanded, the surface of the cut metal tube is expanded. When the surface of the metal tube expands to a certain degree, the expansion process of the metal tube cannot be continued due to the limitation of the included angle of the rhombus, at the moment, the continuous expansion force of the PTA balloon enables the node of the cutting section to drive the connecting rod to overturn together, and the overturned connecting rod can apply circumferential force to the narrow part of the blood vessel.

The invention relates to medical instruments, in particular to a peritoneal dialysis device which comprises a dialysate management unit, a sensor unit, a processor, a storage device, a peritoneal transfer model, an intelligent alarm management unit and a communication unit, and the dialysate management unit is configured to be used for perfusion of dialysate into the abdominal cavity of a patient and drainage of the dialysate from the abdominal cavity of the patient; the sensor unit is configured to be used for monitoring physiological parameters of a patient and dialysate characteristic parameters and receiving symptom information and comfort level scores input by the patient, the storage stores instructions executed by the processor, and the instructions enable the processor to be capable of dynamically adjusting treatment parameters of the dialysate management unit in real time in combination with a pre-trained peritoneal transfer model. The perfusion speed, the drainage speed or the dialysate temperature of the dialysate management unit are dynamically adjusted, so that the comfort level score of the patient is maintained to be above a preset threshold value, treatment parameters can be dynamically adjusted in real time to optimize the treatment effect, peritonitis risks are early warned, and the comfort level of the patient is improved.

The invention relates to the technical field of medical instruments, and discloses an intelligent device for monitoring the cardio-pulmonary function of a heart failure patient, the intelligent device comprises a multi-mode sensor module, an AI analysis module, a biological feedback module and a wearable carrier, the multi-mode sensor module is used for collecting heart rate, respiratory rate, oxyhemoglobin saturation and body movement data in real time, and the AI analysis module is used for analyzing the heart rate, the respiratory rate, the oxyhemoglobin saturation and the body movement data; monitoring modes can be dynamically switched in rest, motion and sleep scenes; the AI analysis module is used for detecting abnormity based on real-time data and predicting a heart failure deterioration risk in combination with historical data; and the biological feedback module is used for providing personalized intervention in a vibration or audio mode according to the analysis result. The heart rate, the respiration rate, the blood oxygen saturation and the body movement data are collected at the same time through the multi-mode sensor module, sleep apnea or periodic respiration is recognized in combination with the AI analysis module, the defect of separation of cardiopulmonary function monitoring and sleep mode analysis in the prior art is overcome, and therefore early intervention and treatment adjustment are supported.

The invention discloses a surgical instrument, and belongs to the field of medical instruments. The surgical instrument comprises a handle assembly, the handle assembly comprises a handle shell and a driving assembly located in the handle shell, and the driving assembly is suitable for providing driving force for an end executing assembly; the manual reset assembly is suitable for being matched with a clutch wrench, and the clutch wrench can be operated to release the transmission connection of the driving assembly through the manual reset assembly; the shielding shell is detachably arranged on the outer side of the handle assembly in a covering mode; the clutch transmission part is arranged on the shielding shell, the clutch transmission part comprises a clutch trigger rod, the near side end part of the clutch trigger rod is in transmission connection with the clutch wrench in an operable mode, and the far side end part of the clutch trigger rod is in transmission connection with the manual reset assembly in an operable mode. Manual resetting of the surgical instrument is safe and reliable, part of structures can be reused, and reused components make sterile contact with the outside in the manual resetting process.

The invention relates to an application of metformin in preparation of skin anti-photoaging drugs or medical instruments. Through verification, the metformin has the effects of promoting the formation of autophagosome, recovering the patency of autophagy flow and remodeling an autophagy-ECM metabolism regulation network. After the composition is applied to the skin (such as a corium layer), the effect of resisting skin photoaging is achieved by adjusting an AMPK signal channel. The metformin is used as an active ingredient to prepare a medicine or a medical instrument, and is beneficial to clinically anti-photoaging application of the skin.

The invention discloses a double-nail type nailing control assembly and a valve ring repair system, and relates to the technical field of medical instruments, and the double-nail type nailing control assembly comprises a mounting shell, a nailing bending adjusting pipe, a nailing spring pipe and a positioning needle; the positioning needle is arranged in the nailing spring tube, the nailing spring tube is arranged in the nailing bending adjusting tube, the nailing bending adjusting tube is in circumferential limiting connection with the mounting shell, the positioning needle axially penetrates through the mounting shell, and the positioning needle is used for positioning a nailing position; two first through holes axially penetrating through the mounting shell are formed in the mounting shell, the nailing devices pass through the first through holes, and the nailing bourdon tube is in transmission connection with the nailing devices and used for controlling the two nailing devices to synchronously and axially move. According to the device, through one-time operation of rotating the nailing bourdon tube, the two nailing devices are simultaneously controlled to nail the valve ring tissue, and the nailing efficiency is improved; meanwhile, the multiple nailing control devices are close to one another in the circumferential direction in the mode that the locking wires are tensioned at the two ends at the same time through the wire locking assemblies, and the annulus tissue contraction is achieved.

The present invention relates to the field of biomedical materials. Particularly provided is a DNA-silk fibroin composite hydrogel microsphere. The DNA-silk fibroin composite hydrogel microsphere is prepared from DNA and silk fibroin on the basis of the micro-fluidic technology by means of combination of self-assembly physical crosslinking and photo-crosslinking. The introduction of a silk fibroin network into the composite hydrogel microsphere can provide mechanical performance for a DNA hydrogel network and reduce the production cost. RGD can remarkably improve the cell loading capability of the microsphere. The hydrogel microsphere can simulate a microenvironment of cartilage tissue by means of three-dimensional loading of high-density cells, so as to enhance substance exchange and signaling between cells, and more effectively promote the proliferation and adhesion of bone marrow mesenchymal stem cells and regulating the chondrogenic differentiation, thus promoting cartilage regeneration and repair, and providing an available material for preparing medicaments or medical instruments for cartilage defect repair.

The invention discloses a medical instrument sealing performance detection device with an intelligent sensor, and relates to the technical field of sealing, the medical instrument sealing performance detection device comprises a sealing tank, a detection device and a pressure reduction device, and the top of the sealing tank is provided with a sealing cover; wherein the detection device comprises a conveying pipe, an air exhaust box, an air exhaust machine, a first sliding groove, an air pressure rod, an L-shaped short rod, a spiral rod and an activated carbon plate, the output end of the air exhaust machine moves downwards to evacuate air in the sealing tank, when the air in the sealing tank is evacuated, the air pressure rod is driven to move towards the interior of the sealing tank, and whether the air pressure rod moves or not is observed; the air pressure rod moves towards the interior of the sealing tank, the sealing performance is good, and no leakage is generated, the conveying pipe fixedly penetrates through the surface of the sealing tank, the air exhaust box is fixedly installed at the bottom of the conveying pipe, a conveying belt of the air exhaust box is provided with a groove, through rotation of the activated carbon plate, the surface area between contact harmful gas and activated carbon can be increased, and the adsorption efficiency is improved.

The invention provides a real-time positioning and puncture track control method and system in a breast duct endoscope operation, and relates to the technical field of medical instruments, and the method comprises the following steps: establishing a real-time coordinate system by collecting an endoscopic image sequence and electromagnetic position data, obtaining lumen three-dimensional depth information by using a light field reconstruction algorithm, and adjusting and calculating stress field distribution by using a grid form. And determining an optimal track based on the puncture safety coefficient, and adjusting compensation parameters in real time by using the optical fiber strain sensing array. Accurate positioning and track control of the puncture instrument in the breast duct endoscope operation are achieved, and operation safety and accuracy are improved.

The invention belongs to the technical field of medical instruments, and particularly relates to an integrated plugging balloon suction catheter. The suction catheter comprises a woven mesh tube, the near end of the woven mesh tube is connected with a handle, and the far end opening of the woven mesh tube is used for being close to the thrombus position; the balloon is arranged on the periphery of the woven mesh tube in a sleeving mode, and the balloon is arranged at the far end of the woven mesh tube; the handle comprises a catheter suction port and a filling port, the catheter suction port is communicated with the far port of the woven mesh tube, and the filling port is communicated with the balloon. The aspiration catheter can effectively reduce the occurrence rate of thrombus escape, so that the risk of far-end embolism is reduced, and good prognosis of a patient is achieved through efficient thrombus extraction; and the extra cost of using other instruments can be reduced, so that the comprehensive cost of the operation is reduced, the thrombus extraction success rate is greatly improved, manpower and material resources are saved, and a patient is benefited.

The invention discloses an intelligent medical instrument retrieval system and method based on a knowledge graph, and relates to the technical field of information retrieval of medical instruments, and the method comprises the following steps: S1, constructing a dynamic term network: extracting terms from registration data, clinical literatures, specifications and industrial standard codes of the medical instruments, and mapping the multi-source terms to a unified vector space through a heterogeneous term dynamic projection module. According to the intelligent medical instrument retrieval system and method based on the knowledge graph, the problems of semantic segmentation and information lag of multi-source heterogeneous terms in the field of medical instruments are effectively solved by constructing a dynamic term network and a dual-drive knowledge graph updating mechanism. The adversarial alignment network realizes accurate semantic mapping of cross-source terms, ensures differential expressions of commodity names, learning names, industry codes and the like, and accords with medical consensus in a unified vector space.

The invention discloses an insertion tube and a manufacturing method thereof, an insertion part and an endoscope, and relates to the technical field of medical instruments, the insertion tube comprises an insertion body and an elastic tube, a first reinforcing layer and a second reinforcing layer are arranged in the insertion body, the second reinforcing layer is arranged outside the first reinforcing layer in a surrounding mode, and the first reinforcing layer is provided with a concave part. The first reinforcing layer and the second reinforcing layer can form double limiting and wrapping supporting on the elastic pipe, the concave shape of the concave part of the first reinforcing layer is utilized to be attached to the outer wall outline of the elastic pipe, and the outer side of the second reinforcing layer is matched for enclosing and restraining, so that the installation stability of the elastic pipe in the first channel can be greatly improved; bending moment generated by self-gravity, external force and the like of the elastic tube is effectively counteracted, the elastic tube is prevented from being bent under the action of self-gravity, external force and the like, the whole insertion tube is prevented from deforming along with bending of the elastic tube, and the form stability of the insertion tube in the cavity in the propelling process is guaranteed. And the straightness of a traction rope transmission path and the accurate conduction of a control instruction are ensured.

The invention relates to a high-precision self-adaptive temperature regulation and control system for a medical instrument. The system comprises a feature analysis module which collects a multi-dimensional temperature information set with a timestamp and deduces a temperature space-time change trend; and the temperature prediction module generates an optimized temperature distribution diagram by using a Kalman filtering algorithm based on the trend. The temperature deviation value of each area is compared with a preset threshold value, if the deviation exceeds the standard, a dynamic parameter configuration table is generated, and an adaptive power regulation scheme is formulated. And the regulation and control execution module regulates and controls the equipment power according to the regulation scheme to obtain an updated temperature monitoring data set. By analyzing the relevance between the data set and the multi-dimensional temperature information set, a stability optimization parameter is generated, so that a control rule of a fuzzy logic algorithm is adjusted, and a self-adaptive temperature regulation and control scheme is formed. According to the system, accurate prediction, regulation and control of the temperature are realized. The adaptive capacity of the system is improved, and the stability and reliability of temperature regulation and control can be improved by dynamically optimizing the control rule.

The invention relates to the technical field of medical instrument disinfection and drying, in particular to a nursing medical instrument disinfection and drying device which comprises a disinfection tank, an ultrasonic cleaning mechanism is arranged in the disinfection tank, and a vibration and rotation combined driving mechanism is installed on the upper portion of the disinfection tank. A rotary washing frame capable of synchronously rotating and vibrating up and down is in transmission connection with the vibration and rotation composite driving mechanism, a rotation generation module is installed on the rotary washing frame, a cleaning carrier belt capable of circularly rotating is installed on the rotation generation module in a transmission mode, elastic binding belts are installed on the cleaning carrier belt at equal intervals, and a reciprocating shaking driving mechanism is arranged on the rotary washing frame. The key innovation point is that a complex and efficient cleaning, disinfecting and drying system is constructed by utilizing single motor driving, the driving motor drives the fixed shaft to rotate so as to drive the movable shaft to enable the rotary washing frame to rotate, and meanwhile, the eccentric cam on the wheel shaft pushes the dirt vibrating frame to enable the rotary washing frame to vibrate up and down.

An access device for a minimally invasive procedure can include a port body defining an instrument channel for a medical instrument, a radial extension extending at least partially outward from the body in a radial direction. The radial extension can extend from a distal end of the port body. The radial extension can define an imaging device cavity defined therein spaced from the port body and opening distally from the radial extension. The imaging device cavity can be configured to receive an imaging device therein for providing images within a field of view that is at least partially distal of the port body.