15 results about "Dilatation catheter" patented technology

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.

The present invention discloses a shock wave balloon dilation catheter comprising a balloon and a dilation catheter. The balloon includes a blood flow passage on its outer circumference and / or interior, extending axially and penetrating through the outer circumference and / or center. A shock wave generator is arranged within the balloon chamber, where conductive fluid can be introduced. The distal end of the dilation catheter passes through or into the balloon and is sealedly connected to the balloon. A fluid passage in the catheter communicates with the balloon chamber, and the shock wave generator is fixed to the portion of the catheter within the balloon. The dilation catheter is provided with a guide wire lumen. The present invention further discloses a shock wave balloon dilation catheter for tricuspid valve openings, which designed to avoid blood flow blockage and reduce the hemodynamic impact during the procedure, enhancing safety and treatment effectiveness.

The application discloses an intracranial laser balloon dilatation catheter, which comprises a tube body, a balloon body and a laser generating module. The tube body is provided with a fluid channel and an optical fiber channel. The balloon body is located at the outer periphery of the distal end of the tube body and is in communication with the fluid channel. The optical fiber is arranged in the optical fiber channel and has a light-emitting section extending to the position of the balloon body. The elastic member is arranged at the distal end of the inner tube. The diameter of the elastic member gradually increases from the distal end to the proximal end of the elastic member. The laser generating module is connected to the proximal end of the optical fiber. The laser generating module emits laser with a repairing function. The intracranial laser balloon dilatation catheter can avoid intravascular restenosis and ensure the safety and convenience of the operation.

An apparatus includes a handle assembly, a guide tube, and a dilation catheter. The guide tube extends distally from the handle assembly. At least a distal portion of the guide tube is malleable. The dilation catheter is slidably positioned in the guide tube. The dilation catheter includes a distal end, a dilator, and a position sensor. The position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space. The dilation catheter is configured to translate relative to the guide tube.

The application provides a high-axial-support expansion catheter, relates to the technical field of medical devices, and comprises a luer joint; an expansion tube section connected with the luer joint; the expansion tube section comprises a first tube section, a second tube section and a third tube section arranged in sequence in the direction away from the luer joint; the second tube section comprises an inner layer and an outer layer wrapped outside the inner layer; the outer layer is provided with an elastomer, and the hardness of the elastomer is lower than the hardness of the inner layer, the first tube section and the third tube section. When the expansion catheter is used in cooperation with an outer sheath with a complex bending shape, the corresponding bending position of the expansion catheter has high axial strength and sufficient flexibility, so that the expansion catheter can smoothly pass through skin tissue or an atrial septum and the like, the influence of the angle change of the outer sheath is small when the outer sheath is withdrawn, and the sheath can be ensured to be left in a predetermined position.

This application discloses a blister packaging box for a three-dimensional fixation and guidance dilation catheter for the brain, belonging to the field of medical device packaging technology. It includes a blister packaging box body and an aluminum foil film. This application features a novel design and ingenious device, using high-strength PETG material as the main material and incorporating customized grooves, silicone pads, and elastic support feet to effectively protect the catheter. Users can easily complete the packaging process by following the prescribed steps. Whether for daily storage or long-distance transportation, it ensures the safety of the device, significantly improving the safety of the three-dimensional fixation and guidance dilation catheter during transportation, reducing the damage rate caused by external factors, extending the device's service life, optimizing the packaging process, simplifying operation steps, and reducing the workload of medical personnel. The unique material combination and structural design give the packaging box sufficient strength to resist external impacts while maintaining a low cost advantage.

The present invention discloses a shockwave balloon dilation catheter with corona generator, including a dilation balloon, an outer tube, and an inner tube. The distal end of the inner tube extends beyond the distal end of the outer tube. The proximal end of the dilation balloon is sealed to the distal end of the outer tube, and the distal end of the dilation balloon is sealed to the distal end of the inner tube. A corona generator is disposed within the dilation balloon, including at least one set of electrodes each including at least one first electrode connected to a positive lead and at least one second electrode connected to a negative lead. The first and second electrodes are spaced apart. Discharge regions are provided on the first and second electrodes that contact the electrolyte liquid filling the inner cavity of the dilation balloon, thereby forming an electric field between the first and second electrodes. The first and second electrodes are fixed to the inner tube. Compared with conventional technologies, this invention improves the safety, ease of operation, reusability, and precise control of the balloon catheter.

A stent structure and an expandable catheter sheath, the stent structure comprising a plurality of support skeletons and support beams, the support skeletons being annular or arc-shaped, and the plurality of support skeletons being arranged in sequence along an axis; the support beams being used for connecting the plurality of support skeletons. The support skeleton comprises an expansion part, which expands radially under the action of an external force, and drives the support skeleton to expand along the radial direction; after the external force is removed, the expansion part retracts, and drives the support skeleton to contract along the radial direction. By setting the expansion part, and by utilizing the characteristics that the expansion part expands under stress and retracts after the external force disappears, the expansion and retraction of the stent structure are realized, so that the expandable catheter sheath can be expanded by a smaller external force, and the surgical process is more convenient. In addition, the support beams are also provided, so that the axial length of the stent structure is not easy to change during the expansion and retraction process, and the structure is more stable and reliable; and the support beams can also provide certain radial support for the expandable catheter sheath, so that the expandable catheter sheath is not easy to bend during the surgical process.

The application belongs to the technical field of medical devices, and provides an expansion catheter. The expansion catheter comprises a sheath tube, a sheath core axially arranged in the sheath tube, and an expansion assembly. The expansion assembly comprises a spiral expansion member and a sliding member arranged in the sheath tube. The proximal end of the expansion member is connected with the proximal end of the sheath core, and the distal end of the expansion member is connected with the sliding member. The sliding of the sliding member or the sheath core is controlled, so that the expansion member is driven to contract or expand. Then, the spiral expansion member is contracted or expanded to expand a blood vessel or an implant, so that a non-closed expansion space with a variable radial size is formed. The blood flow can be maintained during the expansion operation, and the radial size of the expansion can be dynamically adjusted, so that the operability of the operation is improved, and the valuable time and the operation risk caused by the replacement of the expansion catheter due to the improper size of the expansion catheter are avoided.

The application discloses a balloon dilatation catheter for interventional therapy, which comprises a leading tube front section, an expansion assembly connected to one end of the leading tube front section, a leading tube rear section connected to the end of the expansion assembly away from the leading tube front section, and a rubber film fixedly connected to the inner wall of the front port of the leading tube front section, and relates to the technical field of dilatation catheters. The balloon dilatation catheter can solve the problem that the leading tube is easily punctured into the human body during the insertion process.

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.

This invention relates to the field of dilation catheter technology, and more particularly to an infusion balloon dilation catheter system, comprising an infusion balloon dilation catheter assembly, which includes a catheter hub, a stress-relieving tube, an outer tube, a balloon, and a tip tube connected in sequence; a catheter tip vascular image acquisition module, used to determine whether the balloon catheter is within the true lumen of the blood vessel; a support wire tip image acquisition module, used to acquire an image of the support wire morphology and the corresponding vascular morphology under X-ray fluoroscopy; and a support wire tactile sensing module, used to acquire the force changes, support wire morphology image, and corresponding vascular morphology image during support wire advancement to determine whether the support wire support force is adequate, and to adjust the support wire posture when the support wire support force is insufficient. The infusion balloon dilation catheter system of this invention simultaneously possesses balloon dilation and angiography functions, and utilizes image and data processing technology to improve the intelligence level of medical devices.

This utility model provides a balloon dilation catheter burst testing fixture, including a water bath, a lid, a connecting joint, a first fixing member, and a second fixing member. The connecting joint is fixedly installed at the middle of one end of the water bath. The first fixing member includes a first fixing plate and a first through hole in the middle of the first fixing plate. The second fixing member includes a second fixing plate, a second through hole in the middle of the second fixing plate, and an anti-detachment locking buckle on one side of the second fixing plate. Both the first and second fixing members are installed inside the water bath through a connecting structure and can move along the length of the water bath. The balloon dilation catheter can be immersed in the water bath through the first and second fixing members, while the anti-detachment locking buckle on the second fixing member fixes the end of the balloon dilation catheter to be tested, preventing the catheter from shifting or swinging during high-pressure injection into the balloon. Simultaneously, the lid is closed during testing to prevent liquid or catheter material from splashing in the event of catheter rupture.

The application discloses a balloon dilatation catheter, and relates to the technical field of interventional treatment instruments, which comprises a catheter, a balloon, a plurality of constraint bearings, a conducting wire and a scoring device. The constraint bearing comprises a bearing inner ring fixedly connected with the catheter and a bearing outer ring sleeved on the outer periphery of the bearing inner ring and capable of rotating circumferentially relative to the bearing inner ring. The conducting wire is a rigid body and is connected to the bearing outer rings of the plurality of constraint bearings. The scoring device can move radially along the catheter along with the expansion of the balloon to score the tissue outside the balloon. The conducting wire is arranged in the central through hole of the scoring device. The conducting wire can transmit the torque applied to the proximal end to the scoring device at the distal end to drive the circumferential rotation of the scoring device. In this way, the circumferential position of the scoring device can be adjusted by rotating the bearing outer ring of the proximal constraint bearing, so that the scoring device can extrude and score the plaques at different circumferential positions of the inner wall of the blood vessel in the multiple scoring processes, and the expansion effect of the balloon dilatation catheter on the stenosis of the blood vessel is improved.