161 results about "Catheter hub" patented technology

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.

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.

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 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.

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.

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: 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.

This product is a right-handed medical device for inserting long objects, comprising a main body, an insertion tube provided at the tip of the main body, and a base support provided at the base end of the main body. When using this product, as shown in the reference front view illustrating the state of use, the main body is grasped with the right hand by placing the fingers other than the thumb on the finger rest of the main body, and a long medical object (e.g., a microcatheter, guidewire, etc.) is inserted into the lumen of a medical device (e.g., a connector with a hematemesis valve, catheter hub, etc.) by using the thumb to feed it.

A double-balloon multi-lumen catheter is disclosed. The catheter comprises an elongate catheter body including a plurality of lumens. The catheter also includes a plurality of occlusion balloons connected to one or more lumens, and one or more entry ports associated with the plurality of lumens. The catheter also includes an attachable catheter hub comprising a plurality of entry ports. The catheter hub is arranged to receive a proximal end of the elongate catheter body and fluidly connect one or more of the plurality of lumens to associated one of more of the plurality of entry ports. The entire length of the catheter body is configured to pass through the working channel of a gastrointestinal endoscope. The catheter hub is configured to be attached to the proximal end of the elongate catheter body allowing endoscope removal from the catheter body without disrupting the balloon position.

The utility model relates to a perfusion catheter with a balloon, which belongs to the technical field of medical catheters and comprises a catheter seat, developing marks and a perfusion section, the catheter seat is provided with a medicine injection port and a balloon plugging gas injection port, and the developing marks comprise a first developing mark, a second developing mark and a third developing mark. The catheter seat is connected with the perfusion section through the first catheter, the first developing mark and the second developing mark are distributed at the left end and the right end of the perfusion section, a blocking balloon is arranged at the end, away from the catheter seat, of the perfusion section, and the end, away from the perfusion section, of the blocking balloon is communicated with the tip end of the catheter through the second catheter. And the third developing mark is arranged in the second catheter. The three-blade valve structure can replace a closed guide wire, so that the operation process is simplified, and the operation convenience is improved; the blocking balloon prevents the medicine and the dissolved thrombus from entering other blood vessels, so that the risk to healthy blood vessels is reduced; by arranging a developing mark, the catheter perfusion section can accurately reach the diseased region.

Fluid delivery securement systems, needleless connector securement systems, and methods for regulating fluid delivery with these systems are disclosed. The fluid delivery securement system comprises a catheter securement system and a needleless connector securement system. The catheter securement system and the needleless connector securement system are primary and secondary securement devices that prevent harmful movement of the fluid delivery devices. The catheter securement system includes a catheter securement device adhered to the patient and a catheter hub comprising one or more catheters. The needleless connector securement system comprises a securement device adhered to the patient. The securement device is movably coupled to a bracket, which can be coupled to different needleless connectors. The needleless connectors, in turn, are coupled to catheters. The bracket can rotate and translate the needleless connector and the catheter relative to the securement device, which facilitates clinician access to the needleless connector and the catheter.

An extension set comprising a body having a distal protrusion and a proximal coupling segment with a lumen extending from a proximal end of the body through the distal protrusion. An extension port provided on the body with a fluid container coupler in fluid communication with an interior of the body, the fluid container coupler at a distal end of tubing in communication with the extension port. A collar positioned proximal to the distal protrusion. A coupling mechanism configured to couple the body to a catheter hub.

This application provides a catheter for vascular interventional therapy, belonging to the field of medical device technology. The catheter includes a catheter assembly and a connecting assembly. The catheter assembly includes an outer tube, an inner tube, a balloon, and a connector. The inner tube passes through the outer tube, and the balloon is disposed at the tail end of the outer tube. The connecting assembly includes a catheter seat, an injection tube, a monitoring tube, and a pressure sensor. The catheter seat and the ends of the outer tube are connected opposite each other, and the inner tube is fixedly inserted through the catheter seat. By using the outer tube, inner tube, balloon, connector, catheter seat, injection tube, monitoring tube, and pressure sensor, and by having the inner tube pass through the outer tube and balloon, and then connecting to the bottom catheter seat with the connector, the outer and inner tubes can be disassembled and separated, facilitating retrieval. Simultaneously, the monitoring tube and pressure sensor connected to the catheter seat can monitor the pressure of the internal injection fluid, improving the safety of use.

The utility model discloses an anti -backflow catheter relates to the field of catheter, to solve the pressure difference of inside and outside in prior art, the diaphragm may not be completely closed under the pressure effect, make a small amount of contrast medium still backflow problem. The catheter body outside one side is provided with the catheter seat, and the one side of catheter seat is close to the catheter body and forms the tightening part, and the inside intermediate integral connection of catheter seat has the fixed ring, and the one end of catheter body is fixed in the fixed ring, the inside of catheter seat is provided with the mobile adjusting spare, and the mobile adjusting spare includes mobile adjusting pipe, and the upper and lower end of mobile adjusting pipe is provided with the arc slot, the inside of catheter seat is provided with the metal spring piece along the upper and lower end symmetry of mobile adjusting pipe, and the metal spring piece includes extrusion deformation part, and the extrusion deformation part passes through arc slot and extrudes the upper and lower end of catheter body.

This utility model discloses a catheter seat assembly and a long-term dialysis catheter. The catheter seat assembly includes a catheter seat, a supporting inner tube, a locking outer tube, and a fixing ring. The catheter seat has a first end and a second end, which are detachably connected to an extension tube and a dialysis main tube, respectively. The supporting inner tube supports the proximal inner wall of the dialysis main tube and is placed inside the second end of the catheter seat. The locking outer tube is sleeved outside the supporting inner tube and wraps around the proximal end of the dialysis main tube, and is connected to the second end of the catheter seat. The fixing ring is sleeved outside the locking outer tube and locks the locking outer tube radially along the dialysis main tube to the proximal end of the dialysis main tube. In this utility model, the catheter seat assembly, through optimized structural design, is detachably connected to the dialysis main tube. When the catheter seat becomes blocked, it can be separated from the dialysis main tube by disassembling the catheter seat assembly, requiring only the replacement of the catheter seat assembly.

The utility model provides a radial artery angiography sleeve pipe relates to medical instrument technical field, including inner tube and sleeve pipe, inner tube includes inner tube catheter seat and inner tube tube body, sleeve pipe includes sleeve pipe catheter seat and sleeve pipe tube body, is provided with joint part on inner tube catheter seat, joint part can be connected with sleeve pipe catheter seat cooperation, when using, the inner tube tube body is worn into sleeve pipe tube body, through joint part and sleeve pipe catheter seat, can lock cooperation between sleeve pipe and inner tube, and the adaptability is good, and it is not easy to cause gas embolism or thrombus, and the end of the middle cavity is closed in locking position, and blood will not overflow, avoid affecting operation operation, when the inner tube and sleeve pipe are synchronous in superselecting the big blood vessel on the bow, and the sleeve pipe and the inner tube are separated after pointing to the target blood vessel, and under the support of guide wire and inner tube, it is superselected to the target blood vessel to the distal end, and the controllability of catheter is increased, and the difficulty of superselection is reduced.

The utility model discloses a telescopic adjusting catheter which comprises a catheter seat with a through hole inside, one end of the catheter seat is provided with an external spiral part, and the other end of the catheter seat is connected with a connecting catheter communicated with the through hole inside the catheter seat in an inserted mode. More than one groove part extends in the connecting guide pipe in the length direction of the connecting guide pipe, an adjustable guide pipe is movably inserted into the end, away from the guide pipe base, of the connecting guide pipe, and a trapezoidal clamping ring inserted into the connecting guide pipe is arranged on one end face of the adjustable guide pipe; the upper bottom edge of the trapezoidal clamping ring is connected with the end opening of the adjustable guide pipe and is consistent with the diameter of the end opening of the adjustable guide pipe, and the lower bottom edge of the trapezoidal clamping ring is clamped in the corresponding groove part. The length of the whole catheter can be conveniently and rapidly adjusted.

A sheath can be used to protect a catheter hub from contamination. The sheath can surround the catheter hub and seal the interface between the catheter hub and a needleless connector. The sheath can be installed onto the catheter hub either before or after the needleless connector has been connected to the catheter hub.

The utility model relates to the technical field of medical balloons, in particular to a balloon device which comprises a catheter seat, a flexible catheter, a fixing ring and a balloon. One end of the flexible catheter is communicated with the catheter seat, the other end of the flexible catheter is fixedly connected with the fixing ring, the balloon is arranged on the side, away from the flexible catheter, of the fixing ring, and the flexible catheter is communicated with the balloon through a through hole in the fixing ring. Part of the balloon is attached to the circumferential contour of the fixing ring to form a connecting part, the balloon is fixedly connected with the fixing ring through the connecting part, and the balloon forms an expanding structure extending in the axial direction of the fixing ring after being expanded. In order to solve the technical problem that an existing ESD operation has defects, according to the balloon device, a catheter base is communicated with an external gas-liquid source, gas or liquid can be injected into a balloon through the catheter base so that the balloon can be filled, the filled balloon can eject pathological upper-layer mucous membrane tissue open, the lower layer of the mucous membrane can be exposed, and therefore the balloon device can be used for protecting the upper layer of the mucous membrane. Therefore, a doctor can conveniently perform stripping.

The utility model discloses a shock wave balloon catheter which comprises a balloon, a shock wave generating part is arranged in the balloon, the shock wave generating part at least comprises two electrode assemblies, one end of the balloon is connected with an outer tube, an inner tube is arranged in the outer tube, the other end of the outer tube is connected with a catheter seat, and the outer side of the catheter seat is connected with a high-voltage pulse power supply. The shock wave generating part at least comprises two electrode assemblies, and the electrode assemblies are arranged on the inner pipe in a sleeving mode and are arranged at intervals; at least two discharge channels are arranged outside the inner tube, and all the discharge channels of all the electrode assemblies are not located on the same axial side of the inner tube. According to the shock wave balloon catheter, the electrode assembly is provided with the inner-layer electrode structure, the middle-layer electrode structure and the outer-layer electrode structure, the inner electrode is annular, the position of the discharge channel can be freely arranged, the discharge channel is arranged above the inner electrode, and the wire is located in the inner electrode, so that the wire cannot be damaged by arc discharge when shock waves are generated; and the service life of the inner shock wave conduit is greatly prolonged.