Patents
Literature
28 results about "Embolization coil" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Coil Embolization is a catheter-based procedure that allows precise occlusion of abnormal blood flow in a blood vessel. A catheter with a metallic occluding coil is inserted into an artery, usually in the groin (the femoral artery). It is then advanced to the abnormal blood vessel.
Wide-neck aneurysm mechanical release embolism spring ring device and use method thereof
The invention discloses a wide-neck aneurysm mechanical release embolism spring ring device and a using method thereof, and belongs to the technical field of medical instruments. The device comprises a catheter, a catheter channel is arranged on the inner wall of the catheter, and a thrombus removal mechanism and a protection mechanism are arranged in the channel. The bolt releasing mechanism realizes quick bolt releasing of the spring ring through cooperation of a sliding shaft, a clamping plate and other parts; the protection mechanism can prevent the spring ring from being popped up accidentally due to the fact that the releasing wire falls accidentally. When in use, the catheter is pushed to a cerebrovascular segment where an aneurysm is located under the guidance of X-ray fluoroscopy and a contrast agent, a proper spring ring is selected and pushed to a preset position, the spring ring is released through a series of operations to complete embolism, and the catheter is withdrawn after the position is determined to be stable. The problems that when a spring ring is released through traditional electrolytic fusing, the position is difficult to adjust accurately, the packing effect is affected, and the recurrence risk is increased are solved, the spring ring can be released rapidly and accurately, an operation can be completed in time, and the operation risk is reduced.
Owner:黄金豪
Dynamic mandrel for inducing stress into an embolic coil
Owner:INFRAREDX INC
Embolic coil implant system
An embolic coil implant system is provided that includes a microcoil having a portion that includes one or more sets of rings. The rings of each of the one or more groups continuously intersect one another in one cycle, collectively forming a three-dimensional shape. A shape setting device includes a three-dimensional (3D) body having a curved surface and a plurality of winding members extending from the curved surface of the 3D body and arranged in a plurality of groups. The winding members of each of the plurality of groups are configured to allow the microcoils to be wound to form loops, and adjacent groups of the winding members share the winding members to allow the loops formed by the adjacent groups to cross each other. A method of manufacturing an embolic device is also provided.
Owner:DEEPIN TECH LLC
An embolization spring coil assembly
This invention relates to the field of medical device technology and discloses an embolization coil assembly. The embolization coil assembly includes a coil and a release assembly. A connecting rod is connected to the proximal end of the coil, and a clamp is connected to the proximal end of the connecting rod. The release assembly includes a tube body and a release element. The release element includes at least two jaws arranged circumferentially along the tube body, with the proximal ends of all jaws interconnected. Through holes are formed on the jaws along the radial direction of the tube body. The release element has a clamped state inside the tube body and a released state outside the tube body. When the release element is in the clamped state, at least two jaws can clamp the connecting rod, and the clamp at least partially extends into the through hole. When the release element is in the released state, the distal ends of the jaws move away from each other to release the clamp and connecting rod. This invention achieves mechanical release of the coil, preventing displacement of the coil located within the aneurysm and avoiding incorrect release of the coil, thus ensuring treatment effectiveness and surgical safety.
Owner:SUZHOU ZENITH VASCULAR SCITECH LTD
Connecting elements and stretch-resistant fibers proximal to the embolization coil
The present invention, entitled "Connecting Element and Stretch-Resistant Fiber Proximal to an Embolic Coil," provides an embolic coil implant having a stretch-resistant fiber extending therethrough and a dual-function engagement feature at its proximal end. The stretch-resistant fiber effectively limits separation of the embolic coil windings. The engagement feature provides an attachment for securing the embolic coil to the engagement system of a delivery tube and for securing the stretch-resistant fiber at the proximal end of the embolic coil.
Owner:DEPUY SYNTHES PROD INC
Embolization coil implantation system
An embolic coil implantation system is provided, including a microcoil having a portion comprising one or more sets of loops. The loops of each of the one or more sets continuously intersect one another in a cycle, collectively forming a three-dimensional shape. A shape setting device includes a three-dimensional (3D) body having a curved surface and a plurality of winding members extending from the curved surface of the 3D body and arranged in a plurality of sets. The winding members of each of the plurality of sets are configured to allow the microcoil to be wound to form loops, and adjacent sets of winding members share winding members to allow loops formed by the adjacent sets to cross one another. A method of manufacturing an embolic device is also provided.
Owner:DEEPIN TECH LLC
Balloon Microcatheter
The present invention provides a balloon microcatheter, comprising an inner tube, an outer tube and a balloon. The inner cavity of the inner tube forms a delivery channel, and the inner tube has a first section and a second section arranged in sequence from the proximal end to the distal end; the outer tube is sleeved on the outer periphery of the first section, and a fluid channel is formed between the outer tube and the first section; the balloon is arranged on the side of the second section and arranged side by side with the second section, and its distal end, proximal end and middle part are all fixedly connected to the outer surface of the second section; the inner cavity of the balloon is connected to the fluid channel, and when the inner cavity of the balloon is filled with fluid to be in an expanded state, the middle part of the second section bulges and bends toward the balloon. Even if the embolization coil kicks the head end of the balloon microcatheter from the middle of the aneurysm cavity to the aneurysm wall, the balloon in the expanded state is close to the aneurysm wall to avoid the head end of the balloon microcatheter from contacting the aneurysm wall, and the tension provided by the balloon can also prevent the second section from bending and deforming under the tension of the embolization coil, thereby reducing the impact on the aneurysm wall and not affecting the delivery of the embolization coil.
Owner:SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
Embolism coil conveying device
The utility model relates to the technical field of medical instruments, and discloses an embolism coil conveying device which comprises a release device, a pushing rod is connected to the inner wall of the release device in an inserted mode, a conductive wire adheres to the inner wall of the pushing rod, the right end of the conductive wire is sleeved with an anti-untwisting wire, the right side of the anti-untwisting wire is fixedly connected with an embolism coil body, and the embolism coil body is fixedly connected with the right side of the anti-untwisting wire. A limiting ring is arranged on the surface of the pushing rod in an attached mode. Through cooperation of the first U-shaped plate, the reset support, the second U-shaped plate, the rubber strip, the first strip-shaped hole and the second strip-shaped hole, the limiting ring can move on the pushing rod and can be fixed to the designated position, meanwhile, after the limiting ring is fixed to the pushing rod, the pushing distance of the pushing rod can be positioned through the limiting ring, and therefore the limiting ring can be used for limiting the pushing distance of the pushing rod. Furthermore, medical personnel with less experience can accurately push the embolism coil main body to a specified position through the limiting ring, so that the conveying difficulty of the embolism coil is reduced.
Owner:SHANGHAI XIAOYU MEDICAL TECH CO LTD
A hollow structural plug spring coil assembly and push system
The present application provides a hollow structure embolism spring ring assembly and pushing system, comprising a spring ring and a core member, the spring ring is coiled into a lumen along an axis, the core member is arranged in the lumen, the spring ring is a hollow structure made of a metal wire, a filter assembly is arranged on the spring ring to reduce the thrombus in an aneurysm from entering a blood vessel through the filter assembly. The spring ring is a hollow structure, so that the spring ring is lighter in mass, the softness is improved, the hardness is reduced and the compliance is enhanced, the ability of the implanted spring ring to conform to the shape of the aneurysm is improved, the spring ring is beneficial to enter the aneurysm, the risk of the implanted spring ring top breaking the aneurysm is reduced, and the implanted spring ring embolism artery is more dense.
Owner:THE SECOND AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIV
Embolism spring ring structure
The utility model relates to an embolism spring ring structure which comprises a conveying rod and a spring, two connecting pieces are installed at the end, facing the conveying rod, of the spring, inserting grooves are formed in the connecting pieces, a push rod is inserted into the conveying rod, a guide rod is installed at the end, facing the spring, of the push rod, and an air bag is installed on the outer surface of the guide rod through an inflation and deflation mechanism. Movable plates are connected to the upper side and the lower side of the outer surface of the air bag, and inserting blocks matched with the inserting grooves are arranged on the outer surfaces of the movable plates. The inside of the air bag is inflated and deflated through the inflation and deflation mechanism, so that the insertion block can be driven to ascend and descend, when the insertion block is inserted into the insertion groove, the spring can be fixed, the situation that the spring loosens and shifts in the operation process is avoided, potential safety hazards are eradicated, and when the insertion block is pulled out of the insertion groove, fixation of the spring can be relieved. And the materials are pushed into the conveying rod through the push rod to complete separation.
Owner:ZHEJIANG JIAYI HARDWARE MFG CO LTD
Embolic coil system
The invention provides an embolism spring coil system which comprises a conveying device and a spring coil, the conveying device comprises a conveying pipe and a guide wire arranged in the conveying pipe, the conveying pipe is provided with a cavity, the cavity comprises a first cavity body and a second cavity body located at the far end of the first cavity body, and the second cavity body is provided with a partition part to divide the second cavity body into a first channel and a second channel; the spring ring device comprises a spring ring and an anti-unwinding wire arranged in the spring ring, the far end of the anti-unwinding wire is fixedly connected with the far end of the spring ring, a rope sleeve is arranged at the near end of the anti-unwinding wire, the rope sleeve penetrates through the first channel and extends into the first cavity, and the guide wire sequentially penetrates through the rope sleeve and the second channel. The rope sleeve of the anti-unwinding wire penetrates through the first channel and is arranged on the guide wire in a sleeving mode, so that stable connection of the conveying device and the spring ring device is achieved, the locking state can be kept even if the conveying device passes through a bent blood vessel, the situation of mistaken unwinding is avoided, the surgical risk and the operation difficulty are reduced, and the working efficiency is improved. And meanwhile, the spring ring can be reliably released through the arrangement of the anti-unwinding wire.
Owner:CONLIFE MEDICAL SCI (SHENZHEN) CO LTD
Medical pt alloy and medical member formed from medical pt alloy
The present invention relates to a medical Pt alloy comprising a Pt alloy containing a metal M. In the Pt alloy according to the present invention, the metal M contains at least one of 6-11 at% of Ti, 3.5-9 at% of Zr, 5-11 at% of Nb, 6-16 at% of Mo, 4-9 at% of Hf, and 5-10 at% of Ta. The Pt alloy comprises the metal M with a total content of 3.5-18 at%, with the balance being Pt and inevitable impurities. The medical Pt alloy of the present invention has biocompatibility and X-ray visibility and also has good mechanical properties and workability. The medical Pt alloy of the present invention is formed into a medical member in the form of a Pt alloy wire rod or another form and then applied to medical devices such as embolization coils, guide wires, stents, and catheters.
Owner:TANAKA PRECIOUS METAL TECHNOLOGIES CO LTD +1
Aneurysm embolism device
ActiveCN224056034Ueffective treatmentreduce overtreatmentSurgeryBlood flow measurementCatheterBlood velocity
The utility model discloses an aneurysm embolism device which comprises a micro catheter, a micro guide wire and a spring ring, the micro guide wire is inserted into a catheter cavity of the micro catheter in a penetrating mode, and the micro guide wire conveys and guides the micro catheter so as to guide the micro catheter to be inserted into an aneurysm. The spring ring is pushed into the aneurysm from a tube cavity of the micro catheter, the embolism device further comprises a flow velocity sensor used for measuring the flow velocity of blood flow in the aneurysm, and the flow velocity sensor is arranged on the micro catheter or the micro guide wire and located at the end, close to the aneurysm, of the micro catheter or the micro guide wire. According to the aneurysm embolization device, in the process of embolizing the spring ring, the blood flow speed in the aneurysm can be monitored through the flow speed sensor, so that a doctor is assisted in judging whether the spring ring needs to be continuously embolized or not and evaluating the placing effect of the spring ring, it is guaranteed that the aneurysm is effectively treated, meanwhile, excessive treatment can be reduced, and the operation accuracy is improved.
Owner:SUZHOU TIANHONGSHENGJIE MEDICAL INSTR CO LTD
Delivery device and electrocoagulation embolization coil system
The present invention relates to the technical field of medical devices and equipment, and provides a conveyor and electrocoagulation embolization spring coil system, wherein the conveyor is used to connect to the spring coil, including a conveyor rod, a wire structure, and a protective member, wherein the wire structure passes through the conveyor rod and is fixedly connected to the proximal end of the conveyor rod, and the wire structure includes a spring core wire and a first insulated wire connected to the spring core wire; the protective member is arranged at the distal end of the conveyor rod, and the protective member is provided with a receiving channel for isolating the spring core wire from blood flow and a blocking channel connected to the receiving channel, the spring core wire is accommodated in the receiving channel, the first insulated wire passes through the blocking channel and closes the blocking channel, and under the action of an external force, the first insulated wire can extend out of the blocking channel and drive the spring core wire to extend out of the blocking channel. The conveyor and electrocoagulation embolization spring coil system provided by the present invention can reduce the number of spring coils used, shorten surgical time, and reduce surgical costs.
Owner:CONLIFE MEDICAL SCI (SHENZHEN) CO LTD
A detachable embolic coil system
The present invention provides a detachable embolic spring coil system. The detachable embolic spring coil system includes a conveying device, a detaching device and an embolic spring coil; wherein: the conveying device includes a push rod, the push rod is a hollow tube, and a limiting portion is provided on the inner wall of the distal end; the detaching device includes a detaching wire and a detaching ball, the detaching wire is arranged inside the push rod, and the distal end of the detaching ball is connected to the embolic spring coil; in the limiting state, the detaching wire and the limiting portion limit the detaching ball inside the push rod; in the releasing state, the detaching ball breaks away from the restriction and detaches from the push rod from the distal end, thereby releasing the embolic spring coil. The detachable embolic spring coil system provided by the present invention can stably deliver the spring coil into the position in the human body where thrombus occlusion is required, and then easily mechanically detach the spring coil, which is simple to operate, sensitive to reaction, and will not cause damage to blood vessels.
Owner:BEIJING AMSINO MEDICAL
Pusher arm and ball release mechanism for embolic coils
Owner:BOSTON SCIENTIFIC SCIMED INC
Blood vessel plugging support
The invention provides a blood vessel occlusion stent, and belongs to the technical field of medical instruments. The blood vessel blocking stent comprises a stent body, a blood coagulation promoting component and a conveying unit, the stent body is of a cage-shaped structure, is formed by weaving metal wires, has a radial contraction state and an expansion state and is used for conforming to and blocking a target blood vessel in the expansion state, and a flow blocking unit is arranged in the stent body in the direction perpendicular to the axial direction. The blood flow blocking module is used for blocking blood flow; the blood coagulation promoting part is arranged in the stent main body to accelerate blood coagulation near the stent main body; the conveying unit is used for conveying the stent main body to a target position in a blood vessel; during working, the conveying unit conveys the stent body in a contracted state to a target position and then withdraws, and the stent body automatically expands to block blood vessels so as to block blood flow; the plug spring ring is mainly used for solving the technical problem that an existing plug spring ring cannot achieve immediate plugging.
Owner:SEALMED
Medical pt alloy and medical member formed from medical pt alloy
The present invention relates to a medical Pt alloy formed from a Pt alloy containing Pt as a main component. The Pt alloy according to the present invention is a medical Pt alloy comprising a PtRe alloy containing 6.5-16.64 at% of Re with the balance being Pt and inevitable impurities. The medical Pt alloy of the present invention has biocompatibility and X-ray visibility and also has good mechanical properties and workability. The medical Pt alloy of the present invention is formed into a medical member in the form of a Pt alloy wire rod or another form and then applied to medical devices such as embolization coils, guide wires, stents, and catheters.
Owner:TANAKA PRECIOUS METAL TECHNOLOGIES CO LTD +1
Self-adaptive embolism spring ring and spring ring manufacturing method
PendingCN119257669AImprove adaptabilityEmbolization effect is goodOcculdersMechanical engineeringMedical device
The invention provides a self-adaptive embolism spring ring and a spring ring manufacturing method, and relates to the technical field of medical instruments.The self-adaptive embolism spring ring comprises a spring ring body formed by winding alloy wires, the spring ring body extends along a preset path, and the preset path comprises waveform lines; the spring ring body extends along the wave-shaped line to form the wave-shaped part, the position of the wave-shaped line can be designed according to the blood vessel position and shape of a patient, the formed wave-shaped part reduces the structural hardness of the embolism spring ring, the adaptability of the embolism spring ring to the blood vessel is improved, higher packing density can be achieved, and the embolism effect is improved. In addition, the spring ring manufacturing method can achieve efficient forming machining of the self-adaptive embolism spring ring, the spring ring formed through machining is higher in structural flexibility and can adapt to a wider blood vessel range, and the embolism effect under different blood vessel conditions is improved.
Owner:GUANGZHOU ALPHA INTERVENTIONAL MEDICAL TECHNOLOGY CO LTD
Scissor suite in blood vessel cavity and training method
The invention discloses a vascular intracavity scissor suite and a training method, and relates to interventional operation medical instruments. The scissors suite in the blood vessel cavity comprises a scissors device. The scissor device comprises a base, a sliding sleeve, a sheathing canal, a first steel wire and a scissor assembly; the sliding sleeve is arranged on the sliding sleeve sliding section of the base in a sliding and sleeving mode. The rear end of the sheathing canal is fixedly connected to the sheathing canal connecting section of the base, and a first channel is formed in the sheathing canal. The first steel wire is slidably mounted in the first channel, the rear end of the first steel wire extends out of the sheathing canal and is fixedly connected with the sliding sleeve, and the front end of the first steel wire extends out of the sheathing canal and is connected with the scissor assembly; the first steel wire is driven by the sliding sleeve to move along the first channel of the sheathing canal, and then the scissor assembly is driven to be opened and closed. The invention relates to an embolism spring ring flexible filament shearing removal training method based on a vascular intraluminal scissor kit. The device can cut and remove the end filament of the embolism spring ring extending into a normal blood vessel cavity under a minimally invasive / interventional operation, and is suitable for treatment during or after an operation of implanting the embolism spring ring.
Owner:THE SECOND AFFILIATED HOSPITAL OF NANHUA UNIV
Novel embolism spring ring device
The utility model discloses a novel embolism spring ring device which comprises an auxiliary catheter, guide grooves are formed in the two sides of the inner wall of the auxiliary catheter, guide blocks are arranged in the two guide grooves in a sliding mode, an arc-shaped seat is fixedly arranged between the two guide blocks, and a connecting piece is arranged on the inner side of the arc-shaped seat in a clamped mode. According to the novel embolism spring ring device, the structures such as the pushing wire, the connecting block, the arc-shaped seat, the connecting piece and the spring ring are guided into the auxiliary guide pipe, so that the two guide blocks are in sliding connection with the two guide grooves respectively until the two limiting blocks are clamped with the two limiting holes, and then the two guide blocks are limited; and then a pushing wire is pushed, so that two limiting elastic pieces are separated from two limiting grooves, then a connecting block is driven to move, a connecting piece is pushed to move through the connecting block, two connecting clamping columns are separated from two connecting clamping grooves, then the connecting piece is dismounted, and therefore precise conveying of the spring ring is achieved.
Owner:SHANGHAI XIAOYU MEDICAL TECH CO LTD
Embolism spring ring delivery device and release method
The invention discloses an embolism spring ring delivery device and a release method, and belongs to the technical field of medical instruments. The device comprises a developing spring ring, a release wire, a central rod and a conveying pipe, a deformable V-shaped structure is formed at the far end of the center rod, a first matching part is arranged on the V-shaped structure, and a second matching part is formed at the tail end of the releasing wire. In a conveying state, the conveying pipe moves towards the far end and restrains the V-shaped structure to be closed, so that the first matching part and the second matching part are jointed and locked; and in the disengagement state, the conveying pipe retracts towards the near end, constraint on the V-shaped structure is relieved, the V-shaped structure recovers to be opened, and the first matching part is separated from the second matching part. Locking and quick release of the spring ring are achieved through a pure mechanical structure, side effects caused by electrolytic release or hot melting release are effectively avoided, the device has the advantages of being simple in structure, stable in operation, high in safety, short in release time and the like, and the operation efficiency is remarkably improved.
Owner:HANGZHOU LEE KAI TECH CO LTD
Cardiovascular hemangioma embolism spring coil parameter control method and device and storage medium
PendingCN120297033ACharacter and pattern recognitionComputer-aided planning/modellingTumor embolizationHemangioma
A cardiovascular hemangioma embolism spring coil parameter control method and device and a storage medium relate to the technical field of medical instruments, and the method comprises the following steps: acquiring multi-modal image data of hemangioma, and constructing a hemangioma three-dimensional model based on the multi-modal image data; identifying a target anchoring area of the tumor embolism spring by using the hemangioma three-dimensional model; dividing the inner cavity of the hemangioma three-dimensional model into a target anchoring area and a filling area by using the recognition result; according to the method, the multi-modal image data is obtained and analyzed, the parameters corresponding to the embolism spring ring are obtained according to the form of hemangioma, filling can be completed through a single spring ring, meanwhile, better anchoring performance is achieved, and the method is suitable for being used in the field of hemangioma filling. The intraoperative time is effectively shortened; and the safety is improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV
Embolism spring ring, embolism spring ring assembly and multi-coil needle
The invention discloses an embolism spring coil, an embolism spring coil assembly and a multi-coil needle, and belongs to the technical field of medical instruments.The embolism spring coil comprises at least one first spring coil and at least one second spring coil, and the first spring coil is formed by spirally winding a first wire; the second spring ring is formed by spirally winding a second wire; the rigidity of the first wire is larger than that of the second wire. The first spring ring with the large rigidity is used for supporting, the second spring ring with the low rigidity is used for filling, and through cooperation of the first spring ring and the second spring ring which are different in rigidity, high-density filling can be achieved, and the risk of ectopic embolism is effectively reduced.
Owner:MICRO-TECH (NANJING) CO LTD +1
A mechanical release embolization coil device
The present invention belongs to the technical field of medical devices, and discloses a mechanical detachment embolization coil device, which includes: a push tube, a coil, a clamping block, a clamping member, and a release assembly. The coil is arranged at the distal end of the push tube and partially extends into the push tube; the clamping block is arranged at the proximal end of the coil; the clamping member is rotatably connected to the distal end of the push tube, and the clamping member has a notch for the clamping block to slide in or out, and the cross-sectional area of the clamping block is larger than the cross-sectional area of the notch. In the application of this mechanical detachment embolization coil device, the coil is quickly released through the cooperation of the release assembly and the clamping member, reducing the possibility of the coil being clamped with the push tube after release, ensuring that the coil stays smoothly at the designated position, so as to effectively improve the success rate of the operation.
Owner:SUZHOU ZENITH VASCULAR SCITECH LTD
Medical implant and medical device
The present invention provides a medical implant and a medical device, wherein the medical device comprises the medical implant, wherein the medical implant comprises a blocking portion and a thrombus-promoting coating; the blocking portion is a curved structure and is used to be arranged at the opening of a target object; the blocking portion comprises a support body and a coating attached to the support body, and the thrombus-promoting coating is formed on at least a part of the surface of the coating closest to the inner cavity of the target object. The target object is, for example, an aneurysm. When the medical implant is arranged at the neck opening of the aneurysm, the thrombus-promoting coating is arranged toward the aneurysm cavity, which can promote aneurysm thrombosis. It is not necessary to fill the aneurysm cavity with an embolic coil, thus avoiding the risk of thrombus caused by the embolic coil falling off, and will not cause the aneurysm to grow again.
Owner:SUZHOU SHUTONG MEDICAL TECH CO LTD
Embolic coil delivery systems and components
Owner:COOK MEDICAL TECHNOLOGIES LLC
Deploying embolic coils
An embolic coil delivery system includes a catheter and an embolic coil disposed within the catheter, the embolic coil including a coil wire and a fiber bundle. A method of producing an embolic coil delivery system includes: advancing a delivery sheath over a distal end of an embolic coil while applying tension to the embolic coil via a retaining device that is attached to the distal end of the embolic coil.
Owner:BOSTON SCIENTIFIC SCIMED INC