13 results about "Cutting balloon" patented technology

The application discloses a blade cutting balloon suitable for coronary artery stenosis and relates to the technical field of cutting balloons. The balloon body is internally provided with a plurality of groups of cutting blades which are slidably connected to the inner wall of the balloon body and extend to the outside of the balloon body, and the balloon body is internally provided with a fixed pipe which is fixedly connected to the inner wall of the balloon body and is internally provided with a movable block.

The utility model provides a kind of nipple cutting balloon dilatation catheter, comprising: the balloon part of being arranged in the front part of catheter, the tube wall of the balloon part is wrapped with balloon, the outer surface of the balloon is equipped with multiple knife filaments, and the knife filament is used to be connected with high frequency generator.The utility model can be sent into or pulled out duodenal nipple in the guide of guide wire, and dilate duodenal nipple, when nipple sphincter stenosis appears, handle joint connects high frequency generator, and the knife filament on the surface of balloon can carry out electroincision effect to the tissue of stenosis, increase stenosis dilatation efficiency and effect.

Medical apparatus usable and / or for use in transcatheter procedures and associated methods for cutting a structure at a target site within a subject. The medical apparatus can include a handle having a shaft with a cutting balloon coupled to a distal end portion of the shaft for cutting of a portion of anatomy or a portion of a previously implanted device at the target site within the subject. The cutting balloon can include one or more blades. The blades can be disposed in an inverted portion of the balloon or on an exterior surface of the balloon. In some implementations, the medical apparatus can be a prosthetic heart valve delivery apparatus and can include a valve-expanding balloon coupled to the distal end portion of the shaft. In some implementations, the cutting balloon is distal of the valve-expanding balloon.

The utility model discloses a cutting balloon, it includes: push rod, balloon head and inflation pipeline, the balloon head fixed setting in push rod one end, push rod is used for adjusting the balloon head reaches corresponding position, the balloon head sets up blade, inflation pipeline with balloon head intercommunication, through inflation pipeline to balloon head inflation, the balloon head inflation will the blade push out, to execute cutting action. The cutting balloon of the utility model can solve the problem that the middle occlusion section is located in the subintimal false lumen.

The invention discloses a cutting balloon catheter and a using method thereof, and relates to the technical field of medical instruments.The cutting balloon catheter comprises an outer tube, a conveying tube is slidably connected to the interior of the outer tube in a penetrating mode, one end of the outer tube is fixedly connected with a first channel, a second channel and a third channel, and the side, away from the first channel, of the conveying tube is fixedly connected with a balloon body; blade bodies are annularly arranged on the outer surface of the balloon body at equal intervals, the blood vessel protection mechanism comprises an inflation tube and a protection layer, the protection layer is arranged on the outer surface of the balloon body in a sleeving mode, the blade bodies are located in the protection layer, and the protection layer can be arranged on the outer surfaces of the blade bodies in a sleeving mode; the vascular endothelium is prevented from being damaged in the conveying process of the blade body, and the blade body can be effectively prevented from being in direct contact with the vascular endothelium in the conveying process, so that the damage risk of vascular endothelial cells is remarkably reduced, the integrity of the vascular endothelium is maintained, and inflammatory reactions are reduced.

This invention relates to a self-positioning balloon detonation device for well chutes. It includes a cut-resistant balloon, an explosive securing and protective assembly, a wellbore center positioning device, an inflation and pressure regulating assembly, an environmental monitoring assembly, a fan adjustment assembly, and an explosion-proof control assembly. The cut-resistant balloon adopts a pear-shaped or heart-shaped structure, wider at the top and narrower at the bottom. The wellbore center positioning device utilizes a bottom-mounted reversing positioning wheel assembly, a heavy-duty anti-slip reversing positioning wheel seat, and a ground-based one-way damping cable reel assembly. The hollow core cable integrates three functions: inert gas inflation, sensor data transmission, and detonation circuitry. The environmental monitoring assembly mounts sensors such as cameras via a universal snap-on mounting base. The fan adjustment assembly supports autonomous escape from obstructions and oblique floating in tilted wells. The inflation and pressure regulating assembly uses helium as the medium. The explosion-proof control assembly supports remote, safe detonation from the ground. This device achieves high-precision plugging and detonation, real-time environmental visualization, and active obstruction escape, improving operational safety and environmental adaptability.

The present application relates to a kind of cutting balloon catheter, it includes catheter, balloon, spiral guide rail, cutting piece and adjusting piece, catheter is provided with the first cavity for guide wire and the second cavity for gas or liquid, balloon is sleeved in the outer periphery of catheter distal end, balloon interior is communicated with the second cavity, spiral guide rail is attached and wound in the outside of balloon, cutting piece is slidably connected on spiral guide rail, adjusting piece is telescopically connected between cutting piece and catheter proximal end along catheter axis, balloon and spiral guide rail all have radial shrinkage state and expansion state, spiral guide rail can expand along with the expansion of balloon, shrink along with the shrinkage of balloon, when balloon and spiral guide rail are in expansion state, make adjusting piece elongation or shrinkage, cutting piece has the tendency of sliding along spiral guide rail, cutting piece is cut vascular lesion plaque while sliding along spiral guide rail.The cutting balloon catheter of the present application can realize more efficient, safe cutting vascular lesion plaque.

The utility model discloses an arterial administration cutting balloon catheter, which relates to the technical field of cutting balloon catheters and comprises a balloon body, a pushing catheter and a catheter connecting seat, two ends of the pushing catheter are respectively and fixedly communicated with the balloon body and the catheter connecting seat, and an expansion mechanism is arranged in the pushing catheter. The dilation mechanism comprises a segmentation tube, the surface of the balloon body is provided with drug delivery mechanisms which are arranged circumferentially, each drug delivery mechanism comprises a cutting knife, a drug delivery cavity and a connecting catheter, the balloon catheter is cut through artery drug delivery, the balloon body is pushed to an operation position by pushing the catheter, and the balloon body is pushed to an operation position by pushing the catheter through a catheter connecting seat. Various external devices are communicated with the pushing catheter, the pushing catheter is divided into two parts through the dividing tube, and then the balloon body can be expanded conveniently, vascular lesion plaques are cut and removed through the cutting knife, medicine is conveyed to the surface of the cutting knife through the connecting catheter, medicine is fed to the cutting position in real time, and the medicine feeding accuracy is improved.

The application discloses a coronary cutting balloon catheter with a drug loading function, and relates to the technical field of cutting balloon catheters, which comprises an outer tube, a balloon capable of being radially expanded is arranged at the distal end of the outer tube, an inner tube is coaxially arranged in the inner part of the outer tube, the distal end of the inner tube is fixedly connected with the distal end of the outer tube, a fluid channel is formed between the inner tube and the inner cavity of the balloon, an annular cavity between the inner tube and the outer tube forms an extension section of the fluid channel, a plurality of cutting knife assemblies are attached to the outer surface of the balloon, the distal end of the outer tube is further connected with a first knife guard ring and a second knife guard ring located at the two ends of the balloon, a plurality of knife guard pull belts corresponding to the cutting knife assemblies are connected between the first knife guard ring and the second knife guard ring, when the balloon is in a collapsed state, the knife guard pull belts correspondingly cover the cutting knife assemblies, when the balloon is radially expanded, the knife guard pull belts deviate from the cutting knife assemblies under the drive of the first knife guard ring and the second knife guard ring, and the safety is higher.

The invention discloses a blade cutting balloon suitable for coronary artery stenosis, and relates to the technical field of cutting balloons. Comprising an air pump, a pressure indicating gauge is installed on the outer wall of the end of the air pump, a connecting piece is arranged at the end of the air pump, a catheter is connected to the other end of the connecting piece, a balloon body is fixedly connected to the end, away from the connecting piece, of the catheter, and multiple sets of cutting blades extending to the outside of the balloon body are slidably connected to the inner wall of the balloon body. The inner wall of the balloon body is fixedly connected with a fixed tube, and a movable block is arranged on the inner wall of the fixed tube. By means of continuous pressurization of the air pump, air can enter the cavity of the fixing tube, the extension rod is driven to drive the cutting blade to stretch out in the cutting direction, then targeted deep cutting pressure can be applied to calcified tissue in a blood vessel, the problem of damage caused by secondary cutting operation is avoided, and the cutting efficiency is improved. And the repeated cutting frequency of the cutting blade is reduced, and the efficiency and effect of cutting the calcified tissue are improved to a certain extent.

The utility model relates to a kind of medicine delivery cutting balloon dilatation catheter, it includes inner tube, intermediate tube, outer tube, balloon and cutting tool, intermediate tube is sleeved on inner tube, intermediate tube distal end is fixedly closed connection with inner tube;Outer tube is sleeved on intermediate tube;Balloon distal end is fixedly connected with inner tube distal end, proximal end is fixedly connected with outer tube distal end, balloon inside is connected with the balloon filling passage between outer tube and intermediate tube;Cutting tool is fixedly set on the outer surface of balloon, and extend along parallel to balloon axis direction, cutting tool is equipped with medicine injection through-hole and along the medicine drainage groove of cutting tool axial extension, medicine injection through-hole is connected with medicine drainage groove and the medicine channel between inner tube and intermediate tube.The utility model can be higher efficient and more uniform, comprehensive drug delivery while cutting, improve the cutting and drug treatment effect to intravascular plaque, can effectively reduce the occurrence of vascular restenosis, improve the treatment effect and life quality of patient.

The application discloses a balloon catheter for linearly cutting gland tissues, which comprises a balloon body, an elastic connecting piece and a linear cutting piece, the middle part of the elastic connecting piece is fixed to the surface of the balloon body, the linear cutting piece is arranged on the middle part of the elastic connecting piece, the two ends of the elastic connecting piece are fixedly connected with the two ends of the balloon body, and the position between the middle part of the elastic connecting piece and the end part of the elastic connecting piece is separated from the balloon body. The application solves the technical problem that the cutting balloon has poor expandability and poor applicability.

The utility model belongs to the technical field of medical instruments, and particularly relates to a cutting balloon dilatation catheter which comprises a balloon, a catheter assembly communicated with the near end of the balloon and an inner tube arranged in the balloon and the catheter assembly in a penetrating mode. An elastic cutting assembly is arranged on the periphery of the balloon, and a knife-shaped cutting structure is arranged on the side, away from the balloon, of the elastic cutting assembly. The balloon comprises conical sections located at the two ends and a cylindrical section connected between the two conical sections, and the elastic cutting assembly is at least separated from the cylindrical section of the balloon; after the balloon is decompressed and contracted, the elastic cutting assembly retracts to be in a pipe cavity state under the elastic effect of the elastic cutting assembly. According to the cutting balloon dilatation catheter, the elastic cutting assembly is designed to be of a structure separated from the balloon, self-retraction of the elastic cutting assembly is achieved, the balloon has the excellent retracing property, damage to the blood vessel wall or excessive dilatation can be reduced through the excellent retracing property, and the operation safety performance is improved.