Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

33results about How to "Reduce complications" patented technology

Liver cancer thermal ablation path planning system based on deep reinforcement learning

The invention relates to the technical field of ablation path planning, in particular to a liver cancer thermal ablation path planning system based on deep reinforcement learning. The system comprises a target and dangerous area mask generation module, a pipeline distance field construction module, a thermal field prediction module, a breathing deformation prediction module, a multi-scale feature fusion module, a behavior preference reward module, a composite reward function module and a decision output module. Clinical pain points such as breathing interference, dangerous area avoidance and individualized adaptation are broken, the precision and safety of the liver cancer thermal ablation operation are improved, normal tissue damage and complications are reduced, intelligent decision support is provided for interventional therapy, and liver cancer minimally invasive therapy is promoted to be upgraded to precision and intelligence.
Owner:THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Personalized orthodontic bite gum

ActiveCN116687593Bgood for healthComply with physiological occlusion stateOthrodonticsSagittal planeBiomedical engineering
The present application relates to a kind of personalized orthodontic bite gum, the bite gum is used to cooperate with the use of invisible aligner, the bite gum is horseshoe structure in horizontal plane view, it is wedge structure of back thin front thick in sagittal plane view;The bite gum includes bite gum pad, buccal side, lingual side, the buccal side and the lingual side extend to dental arch buccal side and lingual side from the bite gum pad;The bite gum is provided with the avoidance of corresponding arrangement with the invisible aligner, the avoidance is used to avoid weak position on the invisible aligner.The bite gum provided by the present application is mainly aimed at the cases of tooth extraction, tooth defect, replacement tooth period, tooth occlusal surface design, etc.Special device case, by setting avoidance, the bite gum can avoid weak position on the invisible aligner, prevent the deformation of aligner due to the use of bite gum, affect the treatment effect, reduce the use requirement to patient, improve the use efficiency of bite gum, save time.
Owner:SICHUAN UNIV

Vascular sheath structure with variable diameter

ActiveCN224193544UImprove effectivenessImprove the trapping efficiencySurgical needlesTrocarArtery embolizationThrombus
The utility model relates to a diameter-variable blood vessel sheath structure, which solves a series of problems of large operative wound, incapability of intraoperative radiography and the like in the process of treating lower limb artery embolism by opening a Fogarty catheter to take thrombus. The device comprises an outer sheath, an inner sheath and a sheath core which are sequentially nested from outside to inside, the outer sheath comprises an outer sheath main body and an outer sheath base arranged at the near end of the outer sheath main body; the inner sheath comprises an inner sheath body, an inner sheath base is arranged at the near end of the inner sheath body and connected with a hemostasis valve, the far end of the inner sheath body is connected with a self-expansion covered stent sample structure with two open ends, and the length of the inner sheath is larger than that of the outer sheath. The sheath core comprises a sheath core body, a sheath core base is arranged at the near end of the sheath core body, a conical end with the outer diameter gradually reduced is arranged at the far end of the sheath core body, a middle hole for a guide wire to penetrate through is formed in the sheath core body, and the length of the sheath core is larger than that of the inner sheath. The utility model has the advantages of high effectiveness, high safety, strong adaptability, good adaptability, simple structure and convenient operation.
Owner:ZHEJIANG UNIV

Self-turning body-position-adjustable anti-bedsore massage air cushion

The utility model relates to a self-turning body-position-adjustable anti-bedsore massage air cushion, belongs to the technical field of medical instruments, and solves the problem that the posture of an existing inflatable air cushion cannot be adjusted according to the requirements of a patient. The self-turning-over body-position-adjustable anti-bedsore massage air cushion is divided into three layers, the bottommost part is the anti-bedsore air cushion layer, the middle part is the self-turning-over auxiliary air cushion layer, the uppermost part is the massage cushion, and the massage cushion can provide acupoint stimulation. The air inflation pump, the vacuum pump, the controller and the plurality of sets of electromagnetic valves are arranged, so that different air bag modules can be quickly switched to inflate or vacuumize, and the overall posture of the mattress can be adjusted. According to the utility model, the functions of assisting a patient in turning over and adjusting sitting and lying postures are realized.
Owner:PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY)

A pre-installed adjustable hernia repair patch and its preparation method

PendingCN122075180Aadjustable positionStrong fault toleranceProsthesisFibroblastSurgery
This invention discloses a pre-placed adjustable hernia repair patch and its preparation method, relating to the field of medical device technology. The patch body is a polypropylene woven mesh with a weight of less than 50 g / m². The polypropylene woven mesh has a double-layer gradient structure with different densities on both sides. This pre-placed adjustable hernia repair patch uses a double-layer gradient structure of the same woven mesh. The outer layer has large pores (80-300 μm) to facilitate fibroblast ingrowth and tissue fixation, while the inner layer has small pores (15-80 μm) to form a physical barrier, effectively inhibiting visceral adhesions. It addresses both fixation and anti-adhesion needs. Temporary fixation is achieved through sliding PLGA fixation pins, pre-drilled holes, and elastic rings. The fixation pins are available in various lengths, and the elastic rings enable temporary fixation and position adjustment. Blue marking lines facilitate directional identification, and barium sulfate contrast markers aid in intraoperative positioning and postoperative follow-up.
Owner:BEIJING ZIYANGE CONSULTING CO LTD

Intelligent monitoring electronic nipple

The invention discloses an intelligent monitoring electronic nipple, and relates to the technical field of nipples. Comprising a base body, a base body, a sucking head and a handle, the base body and the handle are arranged on the two sides of the base body respectively, the sucking head is arranged at the end of the base body, and the base body, the base body, the sucking head and the handle are integrally formed and manufactured; a circuit board is arranged in the seat body, a power supply part is arranged in the middle of the handle, and a connecting column is arranged on one side, provided with the handle, of the seat body and connected with the power supply part; the base body and the connecting column are internally provided with channels used for wiring. Grooves are oppositely formed in the side faces of the base body, matched groove covers are arranged on the side faces of the base body, and a first pressure sensor and a second pressure sensor are arranged in the oppositely-formed grooves respectively. An embedding groove is formed in the end part of the sucking head, and a camera device is arranged in the embedding groove. Multi-mode, high-synchronization and quantitative monitoring of the sucking process of the premature infant is achieved, the sucking pressure, strength and duration of the premature infant are monitored in real time, the sucking capacity is evaluated and improved, and the swallowing delivery action in the oral cavity is dynamically observed.
Owner:THE SEVENTH MEDICAL CENTER OF PLA GENERAL HOSPITAL

Glaucoma drainage device

PendingCN122581962AAvoid fixed deficienciesreduce complications
The application discloses a glaucoma drainage device and belongs to the technical field of medical devices. The glaucoma drainage device comprises a drainage sheet, the inside of which is a cavity structure, the drainage sheet is divided into a left cavity and a right cavity through a first partition plate, the upper surface of the left cavity is provided with a drainage hole, and the first partition plate is provided with a drainage opening; a drainage assembly is in communication with the inside of the drainage sheet through a connecting hole provided on the drainage sheet; and a fixing mechanism is arranged on the drainage sheet and used for fixing the drainage sheet and the drainage assembly. The glaucoma drainage device can fix the drainage assembly and the drainage sheet of the device through a mechanical fixing structure, avoids the problems of the suture fixation of the drainage device in the prior art, simplifies the operation process, shortens the operation time, reduces the complications caused by the suture foreign matter, and improves the fixing reliability and safety.
Owner:西安市人民医院(西安市第四医院)

Nasal shaping ectogenic silica gel nose tip support structure

The utility model discloses a nose shaping ectogenic silica gel nose tip support structure which comprises an ectogenic extension support, a nose tip section is arranged at the front end of the ectogenic extension support, a forked nose tip support section is arranged on the side wall of the ectogenic extension support, and the forked nose tip support section and the ectogenic extension support are integrally connected. The bifurcate nose tip support section and the ectogenic extension support are arranged in a relatively bent mode, and relates to the technical field of medical instruments. Through an integrated nose tip extension lifting silica gel material, the nose shaping ectogenic silica gel nose tip support is arranged, the concept and method for extending the nose tip through the ectogenic support are well applied, and the nose tip extension effect and stability are enhanced; the nasal tip lengthening and lifting surgical operation can be simplified, complications are reduced, the support is attached to the nose bridge bone, and the nasal tip lengthening and lifting stability is improved.
Owner:黄金龙

Anti-fogging self-cleaning laparoscope

PendingCN121943181AAvoid hanging fog phenomenonConsistent temperatureLaproscopesEndoscopesSurgical operationSurgical Manipulation
The invention relates to an anti-fogging self-cleaning laparoscope which is characterized in that a transparent glass sheet is fixedly arranged at the outer end of an objective lens at the far end of the laparoscope, and a closed carbon dioxide gas groove is formed in a gap between the transparent glass sheet and the objective lens; an air inlet pipeline is fixed along the inner wall of an outer tube of the laparoscope, a corresponding air inlet hole is formed in the near end of the air inlet pipeline, and the far end of the air inlet pipeline penetrates through the objective lens and extends into the carbon dioxide gas groove; a gas outlet pipeline is fixed along the inner wall of the outer tube of the laparoscope, the far end of the gas outlet pipeline extends into the carbon dioxide gas groove, and the near end of the gas outlet pipeline exhausts gas through a gas exhaust hole; and the air inlet is externally connected with a carbon dioxide air source. The laparoscope solves the technical problems that an existing laparoscope is prone to causing fogging of an objective lens and infection of tissue fluid in a minimally invasive abdominal surgery, consequently, the surgical field is blurred, and surgical operation needs to be interrupted due to the fact that a real-time processing function does not exist.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV

A microcatheter of variable stiffness

PendingCN122376975Astable supportStrong cornering abilityCatheterMedical device
The present application belongs to the technical field of medical devices, and particularly relates to a micro catheter with variable rigidity. The micro catheter with variable rigidity comprises a catheter, a handle and a balloon. The catheter has a device conveying cavity and a liquid filling cavity, the liquid filling cavity is arranged outside the device conveying cavity, and the balloon is arranged in the liquid filling cavity. The device conveying cavity is used for conveying devices, and the liquid filling cavity is used for conveying fluid to the balloon. The handle is arranged at the proximal end of the catheter, and the handle has a first luer joint and a second luer joint. The first luer joint is in communication with the liquid filling cavity, and the second luer joint is in communication with the device conveying cavity. The micro catheter with variable rigidity can adjust the rigidity according to requirements, and can balance the good bending performance and support performance.
Owner:ZHUMADIAN FIRST PEOPLES HOSPITAL

Pulmonary artery micro catheter with wedge-shaped balloon

The pulmonary artery micro catheter comprises a catheter body, a guide wire channel penetrating through the catheter body and a balloon channel arranged in the catheter body, the wedge-shaped balloon is arranged at the far end of the catheter body, the far end of the wedge-shaped balloon is closed, and the other end of the wedge-shaped balloon is communicated with the balloon channel.
Owner:THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY

A left atrial appendage closure device

This invention discloses a left atrial appendage closure device, belonging to the field of medical devices. The left atrial appendage closure device of this invention includes a delivery catheter, a support tube, a support plate, a telescopic support rod, a closure clamp assembly, and a control cable. The closure clamp is inserted into the opening of the left atrial appendage via the delivery catheter and is opened at the opening of the left atrial appendage through the cooperation of the telescopic support rod and the control cable. A puncture hook inside the closure clamp pierces the tissue wall of the left atrial appendage opening to achieve closure. Finally, the closure clamp closes the left atrial appendage opening using a straight "I" closure mechanism. Compared with existing left atrial appendage occluders, the puncture hook on the outer periphery of the closure clamp can radially pierce the tissue, and the closure clamp drives the closure of the left atrial appendage opening, making the connection between the closure clamp and the left atrial appendage more secure and less prone to detachment. It also eliminates the problem of decreased reliability of the left atrial appendage seal due to loosening or movement, ensuring the long-term effectiveness of left atrial appendage closure and reducing complications caused by detachment and unreliable sealing.
Owner:昕科生物科技(苏州)有限公司

Connecting assembly

ActiveCN224085502Ufacilitated releaseSimplified separation stepsHeart valvesGuide wiresMechanical engineering
The utility model discloses a connecting assembly which comprises a first connecting piece, a second connecting piece and a third connecting piece. The end of the first connecting piece is provided with a first locking part and a first positioning groove. The end part of the second connecting piece is provided with a second locking part and a second positioning groove, the first locking part is clamped and matched with the second positioning groove, and the second locking part is clamped and matched with the first positioning groove; the sleeve is used for radially restraining the first locking part and the second locking part; the first connecting piece provides a first moving space, and the second connecting piece provides a second moving space; and when the sleeve retracts to be separated from the connecting area of the first connecting piece and the second connecting piece and the first connecting piece moves relative to the second connecting piece, the first locking part moves into the second moving space, and the second locking part moves into the first moving space, so that the first locking part is separated from the second locking part. According to the utility model, the first moving space and the second moving space are provided, so that the first locking part and the second locking part can move relative to each other after the sleeve is withdrawn, and then the connection is quickly separated.
Owner:SUZHOU JIECHENG MEDICAL INC

A multi-channel automated dispensing non-invasive cosmetic injection device

The utility model discloses a kind of non-invasive cosmetic injection equipment of multi-channel automatic distribution, including base, it is characterized by: the upper surface of the base is fixedly connected with support block, the upper surface of the support block is fixedly connected with first fixed frame, the fixed connection of the support block has button block, the upper surface of the button block is fixedly connected with threaded rod, the upper surface of the threaded rod is fixedly connected with first gasket.Various injection areas can be adapted, improve the comfort of patient, reduce complication, can ensure that drug is evenly distributed, improve treatment effect, save time, while reducing operation failure and adjustment time in treatment process, the latter can optimize the distribution of drug, so that certain medicament is injected into dermis superficial layer or and injected into muscle layer, ensure the best level distribution of drug, to realize more uniform effect, and improve the individualization and flexibility of treatment, both have stronger practicality.
Owner:CHONGQING MEILAI PLASTIC SURGERY CO LTD

A device for preventing complications of hyperbaric oxygen therapy in patients with impaired consciousness

This invention discloses a device for preventing complications of hyperbaric oxygen therapy in patients with impaired consciousness, relating to the field of medical device technology. It includes a parietal bone shield and an occipital bone shield, with the parietal bone shield connected to the occipital bone shield via an elastic connecting plate. Elastic electrodes are installed on the inner arc surfaces of the parietal and occipital bone shields. An ear protection component is installed at the edge of the lower opening of the parietal bone shield. An air intake adjustment component is installed on the side wall of the ear protection component. A drug delivery component is installed on the air intake adjustment component. This invention provides a device for preventing complications of hyperbaric oxygen therapy in patients with impaired consciousness. The elastic electrodes can fit snugly against the patient's head and are connected to an electroencephalogram (EEG) signal acquisition device to monitor the patient's brain waves. The device also allows for easy control of the telescopic rod to extend and retract, causing relative movement of the fixation frame and squeezing a spray into the patient's nasal cavity to intervene in epileptic seizures. The earmuffs and nasal mask prevent barotrauma and oxygen toxicity to the patient's middle ear.
Owner:THE SIXTH MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Capsule type enteral nutrition tube band and use method thereof

The invention belongs to the technical field of medical instruments, and particularly relates to a capsule type enteral nutrition tube band and a use method. Comprising a plurality of soluble capsules, the soluble capsules are connected in series through a nutrient canal belt, the nutrient canal belt is arranged in the soluble capsules in a curled and compressed mode, an X-ray-impermeable marker is arranged on the soluble capsule at the head end, liquid is contained in the soluble capsule at the head end, and the soluble capsule at the tail end is connected with an in-vitro port through the nutrient canal belt. According to the capsule type enteral nutrition tube belt, the capsule can be easily fed into the gastrointestinal tract only by being swallowed by a patient through drinking water. In the swallowing process, the capsule can smoothly pass through the esophagus along with water flow, enters the stomach and then reaches the intestinal tract. In the whole process, invasive operation does not need to be conducted on the nasal cavity or the oral cavity, pain caused by nasal cavity intubation is completely avoided, more comfortable and convenient intubation experience is provided for a patient, and the compliance of the patient during enteral nutrition support treatment is greatly improved.
Owner:西安国际医学中心有限公司

Puncture path planning method and system based on ray projection and collision detection

The invention provides a puncture path planning method and system based on ray projection and collision detection, and the method comprises the steps: obtaining a 3D voxel data model of a to-be-punctured object, and carrying out the focus and organ segmentation of the 3D voxel data model according to a pre-trained organ segmentation model; generating uniformly distributed direction vectors from the center of a target focus in the segmented 3D voxel data model to a surrounding space by adopting a Fibonacci spherical sampling algorithm to obtain an initial path set; and performing collision detection on each path in the initial path set, calculating the length of each path passing the collision detection, and determining a candidate puncture path set according to an ascending sequence of the lengths of the paths in combination with a preset candidate threshold value. The technical problems of low reliability and low efficiency of puncture path planning in the prior art are effectively solved.
Owner:SUZHOU AMIT MEDICAL TECH CO LTD

A 3D printed humeral prosthesis preserving the shoulder joint

PendingCN122297193AIncreased connection contact areaincrease contact areaPhysical medicine and rehabilitationProsthesis Implantation
This invention relates to the field of medical device technology, and discloses a 3D-printed humeral prosthesis that preserves the shoulder joint. The prosthesis includes a prosthesis body, with a proximal end for connecting to the humeral head of the patient's own shoulder joint. The proximal end of the prosthesis body is ball-shaped, and a connection area is provided at the top of the proximal end, with multiple nail-like protrusions. The proximal end of the prosthesis body also has through-holes perpendicular to the connection area. The ball-shaped proximal end of the prosthesis body of this invention, with its connection area, connects to the humeral head of the patient's own shoulder joint, preserving the patient's own shoulder joint, maintaining the patient's natural range of motion and function, reducing damage to surrounding tissues, facilitating more natural movement and recovery of daily activities, and improving postoperative function. The ball-shaped connection has a large contact area, and the nail-like protrusion structure in the connection area of ​​the proximal end of the prosthesis body further increases the contact area, making the connection more stable; this contributes to the initial and long-term stability of the prosthesis implantation.
Owner:HUAXI PRECISION MEDICINE IND INNOVATION CENT CO LTD

Lateral skull base tumor clamping ear forceps

ActiveCN224070682UImprove surgical precisiongood treatment effectEar treatmentForcepsApparatus instruments
The utility model belongs to the technical field of medical instruments, and relates to a pair of lateral skull base tumor clamping ear forceps which comprises a front handle (1) and a rear handle (2), the rear handle (2) is connected with the rear end of a forceps tube (3), the front handle (1) is connected with the rear end of a push rod (6), the front end of the forceps tube (3) is connected with the rear end of a forceps head (5) through a locking device (4), and the forceps head (5) comprises a fixed forceps body (51), a movable forceps body (52), a fixed forceps sheet (53) and a movable forceps sheet (54). The fixed clamp sheet (53) is fixedly connected with the front end of the fixed clamp body (51), the movable clamp sheet (54) is rotationally connected with the front end of the fixed clamp body (51) and the front end of the movable clamp body (52) through two rotating shafts respectively, and the front end of the push rod (6) is connected with the rear end of the movable clamp body (52). The multi-angle forceps head can be quickly replaced, and the opening direction of the jaw can be randomly adjusted, so that a tumor can be accurately and completely clamped, and the injury to peripheral nerves and blood vessels can be reduced to the greatest extent.
Owner:HANGZHOU KERUITE MEDICAL EQUIP CO LTD

Multi-directional adjustable body position support device for ankle arthroscopy surgery

PendingCN122581825AGood clinical adaptabilityStable, controllable and safe operating space
This application belongs to the field of surgical support devices and relates to a multi-directional adjustable positioning support device for ankle arthroscopic surgery. The multi-directional adjustable positioning support device includes a platform, a lower leg positioning mechanism, a foot positioning mechanism, a detection mechanism, a traction mechanism, and an early warning mechanism. The lower leg positioning mechanism includes a lower leg fixation plate and a lower leg support rod. The lower leg fixation plate is used to fix the lower leg and can adjust the posture based on the lower leg support rod. The foot positioning mechanism includes a foot fixation plate and a foot support rod. The foot fixation plate is used to fix the foot and can adjust the posture (such as dorsiflexion, plantar flexion, inversion, and eversion) based on the foot support rod. The detection mechanism is used to detect skin temperature and pressure. The traction mechanism is used to apply traction force to the foot positioning mechanism and / or the lower leg positioning mechanism. The early warning mechanism is used to provide early warning when the ankle joint space exceeds its limit. The multi-directional adjustable positioning support device of this application has excellent adjustability and can fully display the ankle joint space.
Owner:GENERAL HOSPITAL OF THE CENT WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY

Occluder and method of manufacturing an occluder

The application provides a closure device and a preparation method thereof. The closure device comprises at least one closure disc, and the closure disc comprises a support framework, the support framework comprises a first support member and a second support member connected to each other, the first support member is made of a metal material, and the second support member is made of a degradable material; and the second support member is arranged in at least one annular region around an axis of the closure disc. That is, the degradable material is used to replace part of the metal material in the closure disc, thereby reducing the content of metal in the closure device and reducing the release of metal ions. Moreover, the degradable material will not remain in the body after degradation, thereby reducing the occurrence of complications. During loading and releasing, the first support member made of the metal material pulls the second support member made of the degradable material in the circumferential direction, so that the closure device exhibits good resilience during compression and expansion, thereby making up for the defects of the degradable material in the mechanical properties when applied to the field of closure devices.
Owner:HANGZHOU NUOMAO MEDTECH CO LTD

Novel arterial anastomosis auxiliary device

ActiveCN224179753UGuaranteed accuracyprecise positioningDiagnosticsSurgeryArterial anastomosisArterial anastomosis site
The utility model relates to the technical field of arterial anastomosis, and aims to provide a novel arterial anastomosis auxiliary device which comprises a handle, a first sliding rod and a second sliding rod are symmetrically arranged on the two sides of the handle, a sliding assembly is arranged on the first sliding rod and the second sliding rod, a limiting assembly is arranged on the sliding assembly, an anastomosis assembly is arranged on the sliding assembly, and the limiting assembly is arranged on the limiting assembly. By designing the sliding assembly, the limiting assembly and the anastomosis assembly, precise positioning and adjustment of the artery anastomosis part are achieved. The stable sliding of the sliding assembly on the sliding rod is matched with the precise limiting of the limiting assembly, so that a doctor can finely adjust the position of the anastomosis assembly according to actual requirements in the operation process, and the accuracy of the operation is ensured. Precise control over the anastomosis assembly can be achieved only by holding the handle and adjusting the position of the sliding assembly. Meanwhile, due to the design of the limiting assembly, a doctor can conveniently lock the position of the sliding assembly, and misoperation in the operation process is avoided.
Owner:THE FIRST AFFILIATED HOSPITAL OF SHANDONG FIRST MEDICAL UNIV (QIANFOSHAN HOSPITAL OF SHANDONG PROVINCE)

Cardiac monitoring system

This application provides a cardiac monitoring system, comprising: an external device including a power module, a signal receiving circuit, and an energy transmitting circuit, wherein the power module supplies power to the energy transmitting circuit; and a passive implantable device including an electrocardiogram (ECG) acquisition module, a signal processing circuit, a signal transmitting circuit, and an energy receiving circuit. The ECG acquisition module acquires ECG signals, the signal processing circuit processes the ECG signals to obtain a processed signal, the signal transmitting circuit transmits the processed signal to the signal receiving circuit, and the energy receiving circuit obtains electrical energy from the energy transmitting circuit to power the passive implantable device. This application enables the passive implantable device to work in conjunction with the external device. The passive implantable device is responsible for acquiring ECG signals, improving the accuracy of ECG signal acquisition. The passive implantable device does not require a battery, greatly extending its service life, and its size is significantly reduced.
Owner:VIVEST MEDICAL TECH CO LTD

branch sheath

ActiveCN116531153Bease deliveryease positioningStentsClimate change adaptationBiomedical engineeringBlood vessel
This invention provides a branch sheath, comprising: a covered cannula, a first connecting tube, a control wire, and a restraint coil. The covered cannula has several drainage holes on its wall to mitigate the impact of blood flow resistance on the delivery and positioning of the branch stent during stent introduction and release, while also reducing complications caused by poor blood flow. The covered cannula is located distal to the first connecting tube; the control wire passes through the first connecting tube, with its distal end located within the covered cannula; the proximal end of the restraint coil is connected to the distal end of the first connecting tube, and the distal end of the restraint coil passes through and extends out of the bare end opening of the branch stent; the portion of the control wire passing through the bare end opening of the restraint coil pulls and fixes the bare end of the branch stent, thereby allowing the branch stent to be pulled back into the branch vessel at any time after it has detached from its predetermined position during the procedure, preventing displacement of the branch stent due to the pull of the main stent, and achieving precise control of the release position.
Owner:SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD

An anal elliptical ring-shaped magnetic squeezing dredging assembly for treating rectal stenosis and a method of using the same

PendingCN122272095AFully formedguaranteed areaRectal stenosisIntestinal stenosis
This invention relates to a transanal elliptical magnetic compression and unblocking component for treating rectal stenosis and its method of use, belonging to the field of medical devices. It includes an elliptical shell A, an elliptical shell B, a magnet component A, and a magnet component B. Magnet component A is embedded within elliptical shell A, and magnet component B is embedded within elliptical shell B. Under the action of magnet components A and B, elliptical shell A and elliptical shell B are attracted together, and their shapes are adapted to each other. This invention provides a transanal magnetic compression and unblocking device adaptable to different degrees and types of rectal stenosis. Through structural optimization, it improves the passageability and compression accuracy of the stenotic segment, solving the problem of rectal stenosis for patients and improving their quality of life.
Owner:THE FIRST AFFILIATED HOSPITAL OF XINXIANG MEDICAL UNIVERSITY

Ligation suture device with suspension function and method of use

The application provides a kind of with suspension function's ligature suture device and its using method, the ligature suture device includes gun handle, gun rod, push mechanism, shooting mechanism and trigger mechanism, through the cooperation of push mechanism, shooting mechanism and trigger mechanism, multiple biological clips placed in the gun rod can be sequentially shot to corresponding ligature point for ligature, multiple biological clips are strung into a biological clip group by tightening line and one-way lock, and after continuous ligature, the first and last ends are connected by the tightening line to form suspension, compared with prior art, the operation time is shortened, the treatment accuracy is improved, the local tissue is smoothly healed and repaired during operation, the postoperative complications and long-term recurrence rate are reduced, the operation process is standardized and simplified.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

A femoral shaft fracture reducer

ActiveCN224331013Uaccurately determinequick fixOsteosynthesis devicesDiaphysisFemoral Shaft Fracture
The utility model relates to the technical field of medical instrument equipment device, specifically relates to a femoral shaft fracture reduction device, it includes cuboid shape reduction line body, is equipped with the stable force arm of stable broken bone long end and the reduction force arm of reduction broken bone short end on the reduction line body, the stable force arm and reduction force arm be parallel to each other. The utility model is based on two point one line, three point one side, curved knife shape body arc stable theory foundation, and is developed in combination with three -dimensional spatial three -dimensional structure. Aiming at the traction reduction, because of muscle traction makes the fracture end displacement, can carry out the fracture end reduction before incision, the purpose is according to the fracture end displacement and carries out the force in the opposite direction, and the fracture end reduction is convenient for the guide needle to pass through, and the intramedullary nail is placed. Avoid the fracture end reduction after incision, greatly save the operation time, reduce the risk and complication that possibly appear in the operation, postoperative. The utility model has the technical effect that the reduction is accurate, and the femoral shaft fracture external reduction is easy.
Owner:HUIZHOU CENT PEOPLES HOSPITAL

Hydrops drainage device based on head and neck surgery

PendingCN121846392ARealize automatic dredging processingkeep closedMedical devicesCatheterSurgical operationSuction force
The invention relates to the technical field of medical instruments, in particular to a hydrops drainage device based on head and neck surgery, which comprises a drainage tube connected with a surgical wound, and one end, far away from the surgical wound, of the drainage tube is communicated with a negative pressure generation mechanism for forming negative pressure suction force; one end, far away from the drainage tube, of each flushing tube is communicated with a cleaning tank for storing normal saline; the drainage tube is further sleeved with an opening and closing mechanism used for controlling the flushing tube to be communicated with the drainage tube, the opening and closing mechanism comprises a closed tank and a blocking plate, the blocking plate is located between the closed tank and the flushing tube, a sealing cavity is formed in the closed tank, air pressure in the sealing cavity is consistent with negative pressure suction in the drainage tube, and an elastic film is arranged between the sealing cavity and the drainage tube in a dividing mode. One end of the blocking plate is located in the sealing cavity, and the other end communicates with the flushing pipe; the drainage tube is used for achieving automatic dredging treatment of blockage of the drainage tube, it is guaranteed that effusion drainage is continuously conducted, and the infection risk and complications are reduced.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

An anti-infection protection structure for peritoneal dialysis tube

This invention provides an anti-infection protection structure for peritoneal dialysis catheters, including a peritoneal dialysis catheter insertion cannula, a conical connecting tube connected to the insertion cannula, a conical connecting tube connected to a cannula retaining ring, a cannula retaining ring connected to an antibacterial protective catheter sheath, and an antibacterial protective catheter sheath connected to a sterile protective cap. Through the synergistic effect of multiple components such as the antibacterial protective catheter sheath, sterile protective cap, anti-infection isolation ring, antibacterial coating sleeve, and antibacterial filter element, this invention effectively inhibits bacterial growth and reproduction, reducing the possibility of external infectious agents entering the peritoneal dialysis catheter, thereby significantly reducing the risk of infection for patients during peritoneal dialysis. The antibacterial filter element, composed of an activated carbon filter, a graphene filter layer, and a filter membrane layer, effectively removes harmful substances, improves the purity of the fluid entering the peritoneal dialysis catheter, and thus enhances the safety of peritoneal dialysis.
Owner:TANGSHAN CENT HOSPITAL CO LTD

Wireless polysomal sleep monitoring system and method based on flexible electrode

The invention relates to a wireless polysomnosis monitoring system and method based on a flexible electrode. The system comprises a flexible sensing module, a data processing module and an application module. The flexible sensing module is composed of a head flexible sensing unit, a chest flexible sensing unit and a leg flexible sensing unit. Each flexible sensing unit comprises a flexible electrode, a flexible sensor and an acquisition box; the data processing module is integrated with a body position analysis unit, a local model and a wireless communication unit, and the local model comprises a sleep breathing disorder monitoring model and a sleep staging model; the data processing module is used for analyzing the multi-mode physiological signals and completing sleep staging and respiratory disorder monitoring; the application module comprises a display unit and an auxiliary analysis unit, and a large language model is integrated in the auxiliary analysis unit. Compared with the prior art, the method has the advantages that the electrode falling risk is greatly reduced, and the monitoring comfort and safety are remarkably improved.
Owner:RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE