247 results about "Catheter hub" patented technology

A drive system for achieving supra-aortic access and neurovascular treatment site access includes a guidewire hub configured to adjust an axial position and a rotational position of a guidewire, a procedure catheter hub configured to adjust an axial position and a rotational position of a procedure catheter, a guide catheter hub configured to adjust an axial position of a guide catheter, and an access catheter hub configured to adjust an axial position and a rotational position of an access catheter, the access catheter further configured to laterally deflect a distal deflection zone of the access catheter.

A supra-aortic vessel access robotic control system includes a guidewire hub configured to adjust each of an axial position and a rotational position of a guidewire; a guide catheter hub configured to adjust a guide catheter in an axial direction; and a procedure catheter hub configured to adjust each of an axial position and a rotational position of a procedure catheter, and also to laterally deflect a distal deflection zone of the procedure catheter.

The present invention discloses a high-precision chip-type micropump wearable precision syringe, which specifically relates to the technical field of medical devices. The present invention evacuates a hydraulic liquid supply tank to a vacuum to form a negative pressure, and then the needle tip of a liquid-filled injection needle pierces a heparin cap, so that the drug driving liquid is pressed into the hydraulic liquid supply tank and squeezes the piston of the pushing unit to move to one side. The volume of the hydraulic liquid supply tank increases, and the drug driving liquid enters the micropump unit through the micropump liquid inlet hole. Since the micropump unit swings to a fixed value each time, the drug driving liquid is accurately driven and controlled, and the injection volume is accurately controlled. The piston member in the cartridge bottle is pushed forward to quantitatively push the injection liquid, and the liquid drives the liquid, so that the infusion is accurate and reliable; the implanted spring pushes the indwelling needle catheter seat to be clamped into the convex ring cavity. Afterwards, the stainless steel needle is withdrawn, leaving only the soft indwelling needle catheter in the blood vessel. Injection is performed through the indwelling needle catheter without waiting for too long, thereby reducing the discomfort and pain caused to the patient.

The utility model relates to an extended catheter and a catheter system thereof. The utility model relates to an extended catheter and a catheter system thereof. The extended catheter comprises a catheter main body, a delivery rod and a catheter seat which are sequentially connected along the axial direction, an anchoring balloon is arranged on the outer side of the end, close to the delivery rod, of the catheter body, and the delivery rod is of a tubular structure. The delivery rod, the catheter seat and the anchoring balloon are communicated with one another; the catheter body comprises an inner-layer catheter body, a reinforcing-layer catheter body and an outer-layer catheter body which are arranged in a sleeving mode from inside to outside in the radial direction. The enhancement layer pipe body is a spiral cutting pipe layer or a stainless steel woven mesh layer or a spring layer. The extended catheter and the catheter system thereof have the advantages that the extended catheter can be used as a guiding instrument to be deeply inserted into the farther position of a blood vessel, the function of sucking thrombus and plaque can be achieved, exchange between instruments is reduced, and operation efficiency is improved.

The utility model discloses a negative pressure suction device for taking a dislocated intraocular lens. The negative pressure suction device mainly comprises a suction catheter, a catheter seat, a butt joint seat, an extension tube, a negative pressure generation device and a negative pressure control device, wherein the combined structure of the suction catheter and the catheter seat can be realized by directly adopting a 22G venous indwelling needle catheter, the combined structure of the suction catheter and the catheter seat is connected to the extension tube through the butt joint seat, the combined structure of the negative pressure generation device and the negative pressure control device can be realized by directly adopting an ultrasonic emulsification and vitreous body cutting machine and a matched pedal controller, and the extension tube is in butt joint with a negative pressure port of the extension tube. The negative pressure is adjusted through the pedal controller, the intraocular lens dislocated to the vitreous cavity is attracted to the pupil area, and damage to the retina in an operation is avoided. The device has the advantages of simplicity and convenience in operation, controllable negative pressure, small trauma and the like, is suitable for minimally invasive extraction or reduction of a dislocated intraocular lens in clinic, and is wide in adaptability.

A method of performing a neurovascular procedure includes providing an assembly including a guidewire having a guidewire hub, an access catheter having an access catheter hub, and a guide catheter having a guide catheter hub. The method includes coupling the guidewire hub to a first hub adapter, coupling the access catheter hub to a second hub adapter, and coupling the guide catheter hub to a third hub adapter. Each of the first hub adapter, the second hub adapter and the third hub adapter is movably carried by a support table. The method includes driving the assembly in response to movement of each of the first hub adapter, the second hub adapter and the third hub adapter along the support table until the assembly is positioned to achieve supra-aortic vessel access.

An intravenous catheter assembly comprising: a catheter tube; a catheter hub having a distal end and a proximal end, wherein the distal end is joined to the catheter tube and the proximal end defines a housing having inner space; a needle extending through the catheter hub and the catheter tube and defining an axial direction, wherein the needle has opposite proximal and distal ends, the distal end forming a needle tip; a needle hub attached to the proximal end of the needle; a needle guard slidably arranged on the needle, wherein the needle guard is movably retained in the housing of the catheter hub; a valve provided in the inner space in the catheter hub to prevent foreign contamination from entering the catheter hub; and a disc that is arranged proximal or distal to the valve or that is joint or linked to the valve.

The utility model relates to a biliary tract drainage device which comprises a drainage tube, a catheter seat and a locking connector. The drainage tube comprises a tube body section and a pigtail section extending at the far end of the tube body section, the tube body section is provided with a central cavity and a plurality of peripheral cavities which extend in the length direction, and the pigtail section is provided with an inner cavity communicated with the central cavity. The near end of the catheter body section is fixedly connected with the catheter base, and the catheter base is detachably connected with the locking connector. A plurality of first drainage holes are formed in the side wall of the pigtail section, the first drainage holes are communicated with an inner cavity of the pigtail section, and when the pigtail section forms a pigtail ring, the first drainage holes are located in the inner side of the pigtail ring. A second drainage hole is formed in the side wall of the far side of the catheter body section and communicated with the central cavity. The locking connector is provided with an inner cavity extending in the length direction, and when the locking connector and the catheter base are in the assembled connection state, the inner cavity of the locking connector is at least communicated with the center cavity. According to the biliary tract drainage device, the size of the catheter connector can be reduced.

A catheter assembly includes: an inner needle configured to puncture a living body; a catheter configured to allow the inner needle to be inserted therethrough; a catheter hub located at a proximal end of the catheter; a valve body located in an internal space of the catheter hub; an opening member located on a proximal side of the valve body, the opening member comprising: a cylindrical barrel portion, a neck portion extending from a distal end of the barrel portion, wherein a diameter of the neck portion is smaller than a diameter of the cylindrical barrel portion, and a foot portion extending to a proximal side of the barrel portion, wherein the opening member is configured to move in a distal direction to open the valve body; and a movement inhibiting mechanism that resists movement of the opening member in the distal direction via a contact portion.

The flow-adjustable perfusion balloon catheter comprises a catheter body, a balloon capable of being filled and a catheter base, a push rod channel and a filling channel are arranged in the catheter body, the filling channel is communicated with an inner cavity of the balloon, and a first connector and a second connector are arranged on the catheter base. Micropores are formed in the positions, located at the near end and the far end of the balloon, of the catheter body and are the near-end micropore and the far-end micropore respectively, the near-end micropore and the far-end micropore are communicated through a blood flow channel formed in the catheter body, and a blocking piece capable of blocking the near-end micropore or the far-end micropore is arranged in the blood flow channel. A push rod is arranged in the push rod channel, and the far end of the push rod is connected with the near end of the plugging piece. Compared with the prior art, by arranging the blood flow channel, effective circulation of blood flow can still be achieved after balloon plugging in the operation, complications caused by ischemia or hypertension in the operation are avoided, the perfusion blood flow can be adjusted in time according to different patient conditions, and the success rate of the operation is increased.

The utility model discloses a vascular intervention dosing device which comprises a catheter seat. The catheter is arranged at the top end of the catheter seat and penetrates through the inner hollow structure of the catheter seat; the puncture needle is arranged in the hollow catheter, the top end of the puncture needle protrudes out of the catheter, the needle base is installed at the top end of the puncture needle, and the needle base and the outer portion of the catheter base are mutually clamped; the system further comprises; and the extension arm is arranged on the outer wall of the catheter seat in an inclined structure. The utility model discloses a vascular intervention drug delivery device. The fixing mechanism is arranged, so that the extension tube which is not fixed by an adhesive tape can be stored, when the whole device is not used, the redundant extension tube can be stored, the normal hand operation of a patient is not influenced, and the situation that a catheter falls off due to contact between the extension tube and an external object is avoided; meanwhile, when administration is needed, the device can be easily pulled out of the interior of the fixing tube, normal administration work is carried out, and the device is more practical and convenient to use.

A powered catheter and / or powered catheter system is described. The catheter includes a catheter hub with one set of contact components that are configured to connect to a mating cable with a corresponding second set of contact components. The mating cable can be part of another device, such as a controller or power source.

An intraosseous access device can include a device body, a trocar needle coupled to the device body, and an intraosseous catheter removably disposed on the trocar needle. The device body can be configured to enable manual insertion of a distal tip of the trocar needle through a skin surface of a patient to an external surface of a bone of the patient. The intraosseous catheter can include a catheter hub and a cannula slidable with respect to the catheter hub to enable adjustment of a longitudinal length of the intraosseous catheter. The intraosseous access device can further include an advancement mechanism configured to advance the trocar needle and the intraosseous catheter into an internal portion of the bone after the distal tip of the trocar needle and the intraosseous catheter have been inserted through the skin surface of the patient to the external surface of the bone of the patient.

The indwelling needle suite comprises a catheter assembly, a puncture assembly and a negative pressure assembly, and the catheter assembly comprises a catheter base, a catheter connected with the catheter base and an isolation plug arranged in the catheter base; the puncture assembly comprises a needle seat and a needle tube connected with the needle seat, the needle seat is provided with a first end and a second end, the first end of the needle seat is detachably connected with the catheter seat, and a needle tip of the needle tube penetrates through the first end of the needle seat and the isolation plug and penetrates out of the catheter; the negative pressure assembly comprises a negative pressure generator and a channel connection switch, the negative pressure generator is provided with a volume-variable inner cavity, and the channel connection switch is arranged between the negative pressure generator and the needle seat and can be used for communicating or blocking the inner cavity of the needle seat and the inner cavity of the negative pressure generator. The indwelling needle suite can conveniently and rapidly build puncture negative pressure and observe blood return, can automatically reduce the negative pressure to prevent injury after blood return, and is especially suitable for first aid and rapid building of a blood vessel channel for administration when the blood vessel condition is poor.

The utility model relates to a balloon catheter, belongs to the technical field of medical instruments, and solves the problems that an existing balloon catheter is poor in folding memorability and difficult to restore after pressure relief. A balloon catheter is composed of a tip tube, a balloon, a compression spring, an inner tube, a developing ring, an outer tube, a stress expansion tube and a catheter base. The developing ring is fixed on the inner pipe through bonding or forging and pressing; the compression spring is nested on the inner tube and the developing ring; the stress expansion pipe is a variable-diameter guide pipe and is arranged on the outer pipe in a sleeving mode. According to the balloon catheter, the compression spring is nested on the inner tube of the balloon to provide axial force for the balloon, and under the action of axial tension of the compression spring, the balloon is completely recovered from an expansion state in use to a folding state before use, so that the balloon catheter is easy to fully withdraw.

The application discloses a card-to-card seat assembly and electronic equipment, and belongs to the technical field of electronic products. The card-to-card seat assembly comprises a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly, a card-to-card seat assembly,

A catheter assembly includes: a hollow catheter; a catheter hub to which the catheter is fixed; an inner needle including a needle tip, the inner needle being detachably disposed inside of the catheter; a needle hub to which the inner needle is fixed; a catheter operation member configured to move the catheter relative to the inner needle; and a support member attached to a distal side of the needle hub and configured to rotate about a rotation axis orthogonal to a longitudinal direction of the assembly.

The utility model discloses an indwelling needle which comprises a catheter seat, a catheter installed at the front end of the catheter seat, an isolation plug installed in the catheter seat, a protective cylinder with a guide hole extending in the axial direction and a limiting hole extending in the circumferential direction from the front end of the guide hole, and a needle seat arranged in the protective cylinder, wherein the front end of the needle seat extends out of the protective cylinder and is connected to the rear end of the catheter seat in an inserted mode. The rear end of the puncture needle is connected with the needle base, the front end of the puncture needle sequentially penetrates through the isolation plug and the catheter, the needle holding handle penetrates through the limiting hole and is connected with the needle base, and the reset spring is arranged on the needle base in a sleeving mode and elastically abuts against the position between the front end of the protective cylinder and the rear end of the needle base. The puncture needle can be pulled out without manual traction, the risks of instability and misoperation caused by manual needle pulling can be eliminated, and the puncture needle pulling device is safer, more reliable, more convenient and quicker.

A deployment system for accurate placement of localization tags within biological tissue is disclosed. The system comprises a catheter hub with sheath, a stylet, and a loader. The catheter hub provides an interface for system components, while the flexible sheath allows navigation to target sites. The stylet, operable in multiple positions, guides the sheath and assists in tag deployment. The loader houses the localization tag and acts as a safety spacer during deployment. The system is compatible with endoscopes and various imaging modalities, offering improved accuracy and efficiency over traditional wire localization techniques. The localization tags may be passive or active, with potential for advanced functionalities such as biosensing or drug delivery. This minimally invasive system finds applications in tumor marking, lymph node localization, and targeted therapy delivery across multiple medical specialties.

The invention belongs to the technical field of medical instruments, and particularly relates to an infusion auxiliary device for pediatric nursing, the infusion auxiliary device comprises a catheter seat, a fixing block is fixed at one end in the catheter seat, a flexible catheter is fixed at one end in the fixing block, and the flexible catheter is fixedly connected with the catheter seat. The end, away from the fixing block, of the catheter base is sleeved with a detachable needle holding handle, a steel needle is fixed to the end, close to the fixing block, of the needle holding handle, an isolation plug is fixed to the position, located between the fixing block and the needle holding handle, in the catheter base, and one end of the steel needle penetrates through the flexible catheter and the isolation plug. When liquid medicine flows slowly or stops flowing, the driving handle is rotated, the correction rod is driven to move in the flexible catheter, the flexible catheter in the bent state is supported and corrected through the correction rod, the flexible catheter is restored to the approximately initial linear state, dredging and correction of the flexible catheter are achieved, and it is guaranteed that an infusion channel is unblocked again.

The utility model relates to an intracranial laser balloon dilatation catheter, which comprises a catheter, a laser balloon fixed on the catheter and communicated with the catheter, and a catheter seat fixed and communicated with one end, far away from the laser balloon, of the catheter, a positioning claw is arranged on one side, close to the catheter seat, of the laser balloon, and the positioning claw is fixed on the catheter. The positioning claws are in a funnel shape formed by annularly arranging a plurality of positioning wires, and the ends, with the large opening diameter, of the positioning claws face the laser balloon; the utility model has the advantages that when the laser is continuously irradiated, the laser can be ensured to irradiate in the middle and the blood circulation can be ensured.

An intravascular access device has a handle having a slot through a surface of the handle and a plurality of ratchet teeth aligned on an interior of the handle. And a slider positioned in the slot, the slider having a slider leg extending to engage the ratchet teeth. A needle holder positioned in the handle, the needle holder having a proximal abutment configured to receive the slider leg and a needle coupled to the distal end. The needle has a longitudinally planar surface positioned at a clock position along the length of the needle body, and the needle extends through the catheter and catheter hub, the catheter hub being releasably coupled to the distal end of the handle. A guide element extends within the catheter through the slider leg, through the needle holder channel, and along the flat surface of the needle. The slider is configured to advance the guide element distally from the catheter distal end when the slider advances distally along the ratchet teeth and within the handle slot.

Balloon catheters for treating a diseased bifurcated blood vessel that includes a catheter hub, a proximal balloon hub, a distal balloon hub, a catheter tip, a catheter shaft comprising a proximal shaft and a distal shaft, and a bifurcated balloon assembly with a first balloon and second balloon that are substantially parallel. A proximal end of the proximal shaft is connected to the catheter hub and a distal end of the proximal shaft is connected to the proximal balloon hub. A proximal end of the distal shaft is connected to the distal balloon hub and a distal end of the distal shaft is connected the catheter tip. A proximal end of the first balloon is connected to the proximal balloon hub, a distal end of the first balloon is connected to the distal balloon hub, and a distal end of the second balloon is connected to the distal balloon hub.

A device comprising interconnected components for deoxygenating blood used in the treatment and prevention of reperfusion injury, including a configuration to reduce the ionized calcium concentration of the deoxygenated blood to less than 0.5 mmol / L. The components may include a syringe pump operably communicating with various configurations via a control unit / processor, a cannula, a pump communicating with the cannula, a heat exchanger, a device for generating / creating fluid flow, an infusion port, a mixing port, a device hub, and a catheter hub. These components are selectively connected to a subject, and monitoring and / or other lead wires / devices may be attached to the subject. The lead wires / devices may include sensors and other devices that can be attached to / connected to the subject, providing health indicators, such as a temperature sensor, electrodes for monitoring cardiac electrical activity, and an oxygen saturation (SpO2) sensor for monitoring the patient's blood oxygen saturation.

The application provides a medical catheter, comprising: a catheter seat comprising a first communication interface and a second communication interface; a tube body, an inside of the tube body being provided with a suction channel and a liquid channel, a proximal end of the suction channel being in communication with the first communication interface, a distal end of the suction channel being open at a distal end of the tube body, a proximal end of the liquid channel being in communication with the second communication interface, and a distal end of the liquid channel being in communication with the distal end of the suction channel. By using the medical catheter, the thrombus suction efficiency is improved, and the medical catheter is suitable for removing thrombus of various shapes and textures.

A catheter assembly includes a catheter, a catheter hub fixed to the proximal end portion of the catheter, a hollow inner needle removably located in the catheter and including a distal end portion at which is located a needlepoint to puncture skin of a patient, and a guide wire slidably positioned in the inner needle. The guide wire is longer than both the inner needle and the catheter. A wire operating member is connected to the guide wire and is displaceable in the forward direction relative to the inner needle and the catheter. A main body is detachably connected to the catheter hub and includes a finger-engaging projection at a distal portion of the main body that is engageable by a user's finger to advance the main body and the catheter in the forward direction.

A catheter assembly includes: an inner needle configured to puncture a living body; a catheter configured to allow the inner needle to be inserted therethrough; a catheter hub located at a proximal end of the catheter; a valve body located in an internal space of the catheter hub; an opening member configured to be located in the catheter hub on a proximal side of the valve body, the opening member including: a cylindrical barrel portion, a neck portion extending from a distal end of the barrel portion, wherein a diameter of the neck portion is smaller than a diameter of the cylindrical barrel portion, and a foot portion extending proximally from the barrel portion. The opening member is configured to move in a distal direction through the internal space of the catheter hub to open the valve body by the neck portion.

The present application relates to the technical field of medical devices, and discloses an interventional therapy delivery device. The interventional therapy delivery device comprises a tube body and an operating handle. The tube body is composed of an inner hypotube and an outer hypotube, and is fixed at a distal end by a cutting groove. The operating handle is provided with a base, a catheter seat, an adjusting knob, a threaded part, an adjusting knob rotating rod, a fine adjustment knob and a fine adjustment knob rotating rod. The axial movement of the outer hypotube is controlled by the threaded engagement of the adjusting knob to adjust the bending angle. The fine adjustment knob adjusts the bending direction by cooperating with the limiting block and the sliding groove. The present application improves the torque transmission efficiency, reduces the bending radius, simplifies the operation process, and thus improves the accuracy and operation flexibility in interventional surgery.

The application relates to a balloon catheter, characterized in that the balloon catheter comprises a balloon, a catheter, a terminal tube, a developing ring, a catheter seat, a stress tube and a catheter sleeve, the catheter comprises an inner tube and an outer tube, the outer tube is sleeved outside the inner tube, the distal end of the inner tube is connected with the proximal end of the terminal tube, the distal end of the balloon is fixed on the outer surface of the terminal tube and / or the inner tube, the proximal end of the balloon is fixed on the outer surface of the distal end of the outer tube, the developing ring is arranged on the inner tube in the balloon, the stress tube is fixed on the distal end of the catheter seat, the proximal end of the inner tube is fixed inside the proximal end of the catheter seat through the stress tube and the catheter seat, the proximal end of the outer tube is fixed inside the distal end of the catheter seat through the stress tube and the catheter seat, and the catheter sleeve is sleeved outside the balloon. The balloon catheter can effectively treat arterial or venous stenosis and the like.

The utility model discloses an access catheter with a balloon, which relates to the technical field of medical instruments and comprises a catheter seat, a balloon, a balloon and a balloon, one end of the catheter is arranged in the channel cavity, the catheter comprises an inner tube and an outer tube, a circulation channel is arranged between the outer tube and the inner tube, the circulation channel is communicated with the circulation cavity, and an inner cavity of the inner tube is communicated with the channel cavity; the outer tube is sleeved with the balloon, one end of the balloon is fixedly connected with the end of the outer tube, and the other end of the balloon is fixedly connected with the inner tube, so that a balloon cavity of the balloon is communicated with the circulation channel; the length between the far end of the inner tube and the wall of the balloon is set to be L, the circumference of the catheter reaches or exceeds 5 mm, and L is at least 20 mm. According to the access catheter with the balloon, the technical problems that an existing access catheter cannot achieve blood flow blocking, and the far end of the existing access catheter cannot reach the interior of the M2 section easily are solved, the access catheter can achieve blood flow blocking in an operation, the far end of the existing access catheter can reach the interior of the M2 section, and the safety and reliability of stent thrombus extraction are improved.