557 results about "Catheter hub" patented technology

A robotic medical system for performing a vascular procedure includes a procedure rail having a drive surface oriented along a generally vertical plane, a rail adjustment system configured to couple to a patient support table and having one or more movable arm segments, a fluidics system, and a plurality of catheter hubs operatively coupled to the procedure rail and configured to be axially translated along the drive surface along a longitudinal axis of the procedure rail. At least one of the plurality of catheter hubs is in fluid communication with the fluidics system, the at least one of the plurality of catheter hubs having a hemostasis valve and a catheter in communication with the hemostasis valve.

A hub assembly includes a mount being axially movable along a drive surface, a catheter hub having a catheter, the catheter hub removably couplable with the mount, and a fluidics connector in fluid communication with the mount and the catheter hub to provide fluid and vacuum through the connector to the catheter hub.

A method of performing a neurovascular procedure includes the steps of providing an access catheter having an access catheter hub; coupling the access catheter hub to a hub adapter, movably carried by a support table; driving the access catheter in response to movement of the hub adapter along the table until the access catheter is positioned to achieve supra-aortic vessel access; removing the access catheter and access catheter hub from the hub adapter; and coupling a procedure catheter hub having a procedure catheter to the hub adapter.

The invention relates to the technical field of medical instruments, in particular to a nicking instrument based on a paper-cut structure, which comprises a destressing sleeve and a catheter seat, and further comprises a pushing section, a metal tube and a hollow head, the right end of the destressing sleeve is connected with the catheter seat, the pushing section is mounted at the left end of the destressing sleeve, and the other end of the pushing section is connected with the metal tube; the pushing section and the metal tube are coaxially connected, a PTA balloon penetrates through the catheter base, the stress relieving sleeve and the pushing section and enters the metal tube after penetrating through the pushing section, the PTA balloon is embedded in the metal tube, the tail end of the metal tube is connected with a bullet-shaped hollow head, when the PTA balloon is full, the surface of the cut metal tube begins to expand, and when the surface of the cut metal tube is expanded, the surface of the cut metal tube is expanded. When the surface of the metal tube expands to a certain degree, the expansion process of the metal tube cannot be continued due to the limitation of the included angle of the rhombus, at the moment, the continuous expansion force of the PTA balloon enables the node of the cutting section to drive the connecting rod to overturn together, and the overturned connecting rod can apply circumferential force to the narrow part of the blood vessel.

The invention provides an angiographic catheter with a hydrophilic lubricating coating and application of the angiographic catheter. The angiographic catheter with the hydrophilic lubricating coating comprises a catheter seat, a catheter body, a transition section and a head end, the main body part of the pipe body consists of three layers, namely an inner layer, a braid layer and an outer layer; wherein the outer-layer material is designed in sections, is designed according to a physiological anatomical structure of a blood vessel, and provides corresponding flexibility according to different sections of blood vessels; the composite material is mainly prepared by matching one or more of nylon 12, PEBAX and TPU polyester materials; the outer layer of the catheter is provided with the hydrophilic lubricating coating, corresponding flexibility and pushing performance are provided, the catheter can effectively adapt to the blood vessel structure, the catheter can conveniently reach the designated position, and thrombus can be inhibited to a certain degree.

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.

The present invention relates to a revascularization system, comprising an arterial sheath, a bypass system, and a venous sheath which are connected in sequence. The arterial sheath is configured to be connected to the carotid artery, and the venous sheath is configured to be connected to a vein. The arterial sheath comprises a main body and a catheter seat located at the proximal end of the main body, and the proximal end of the catheter seat is communicated with a stent system that is used for loading and delivering a stent to the distal end of the main body. The bypass system comprises an inflow tube, an outflow tube, and a bypass assembly. A tube cavity is arranged in the bypass assembly, a blood filter is arranged in the tube cavity, and the blood in the tube cavity flows from the artery sheath to the venous sheath. The revascularization system of the present invention can establish reverse flow of blood from the carotid artery to the femoral vein, preventing blood clots that have detached during surgery from entering the brain.

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.

A catheter hub assembly. The catheter hub assembly includes a catheter hub body, a septum and a septum retainer, the catheter hub body having a distal end, a proximal and an internal wall defining an internal fluid passageway therebetween, the internal wall defining a transitional step within the internal fluid passageway, the septum positioned within the internal fluid passageway such that a distal end of the septum abuts up against the transitional step, the septum retainer at least partially receivable within the internal fluid passageway and having an outer wall shaped and sized to interlock with the inner wall of the catheter hub body, the outer wall including one or more lateral ribs configured to inhibit rotation of the septum retainer relative to the catheter hub body.

A fluid or blood diverter is provided in the needle housing of a needle assembly for redirecting the inflowing blood to a distal section of the fluid diverter that may be enclosed by the distal portion of the needle housing so that a clinician can readily view the blood flash without having to look back to the flashback chamber at the proximal portion of the needle housing. At the distal section, the inflowing blood is redirected to the flashback chamber. The needle housing with the blood diverter is adapted to be used in safety catheter needle assemblies that may include a passive needle safety control mechanism including a clip guard. Different ways of coupling the needle housing and the clip guard with catheter hub assemblies with and without passive blood control are also described.

A catheter assembly can include a catheter, a controller, and an internal power source. The catheter can include a catheter tube and a catheter hub, wherein a proximal-end portion of the catheter tube can be disposed in the catheter hub. The catheter tube can incorporate a plurality of piezoelectric transducers into a length of the catheter tube. The plurality of piezoelectric transducers can be configured as a plurality of vibrators for vibrating and, thereby, inhibiting buildup of biomaterial on a luminal or abluminal surface of the catheter tube by way of vibrations along the length of the catheter tube when the catheter tube is placed in a vasculature. The controller can include a processor and memory, wherein the controller can be configured to control at least the plurality of piezoelectric transducers. The internal power source can be configured to power the controller and the plurality of piezoelectric transducers.

The utility model relates to a novel thrombus removing instrument, which belongs to the technical field of thrombus removing instruments and comprises a hollow transition tube body and a hollow catheter seat, the transition tube body is communicated with the catheter seat through a second Luer joint, and a suction tube is arranged at one end, far away from the transition tube body, of the catheter seat; the thrombus removing instrument further comprises an operation guide wire, the operation guide wire penetrates through the transition tube body, the catheter base and a suction tube, one end of the operation guide wire extends out of the transition tube body to be connected with an operation handle, and the other end of the operation guide wire extends out of the suction tube to be connected with the head end. A circulating groove is formed in the joint of the operation guide wire and the head end; a first Luer taper is arranged on the side wall of the transition pipe body, and the first Luer taper is communicated with the interior of the transition pipe body.

The nick balloon catheter comprises a catheter body, a balloon and a catheter seat, the catheter body comprises an inner tube and an outer tube, the outer tube is arranged on the outer side of the inner tube in a sleeving mode, the far end of the outer tube is connected with the near end of the balloon, and the near end of the outer tube is connected with the catheter seat; the far end of the inner tube penetrates out of the far end of the balloon, a first nicking piece and a guide wire are arranged in an inner cavity of the inner tube in a penetrating mode, and the first nicking piece comprises a first developing piece capable of developing under X rays; the inner tube comprises a nicking piece cavity and a guide wire cavity, the nicking piece cavity and the guide wire cavity extend in the length direction of the inner tube in a penetrating mode, the nicking piece cavity and the guide wire cavity are arranged in parallel, and the first nicking piece penetrates out of the far end of the inner tube through the nicking piece cavity. According to the nicking balloon catheter, the first nicking piece is arranged to cut the seriously narrow lesion position, the problem that the balloon cannot reach the seriously narrow lesion position is solved, and the application range of the nicking balloon catheter is wider.

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.

A catheter system includes a catheter hub, a catheter shaft and a hub housing. The catheter hub has a flow path extending from an opening at a distal end to an inlet at a proximal end. The catheter shaft has a lumen in fluid communication with the distal end opening of the catheter hub. The hub housing has a fluid path extending through a portion of it. A cavity located distal to the fluid path has a wall with an opening that movably retains the catheter hub. The surface of the catheter hub and the wall of the cavity movably interact from a first position to at least a second position. The longitudinal axis of the fluid path distal opening is parallel with the longitudinal axis of the lumen when in the first position and forms an angle with the longitudinal axis of the lumen when in the second position.

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.

The embodiment of the utility model provides an integral exchange type peripheral balloon dilatation catheter, and relates to the field of medical instruments. The overall exchange type peripheral balloon dilatation catheter comprises a protective sleeve, a balloon, a balloon woven layer, a fixing ring, a developing ring, a double-cavity tube, a catheter base sleeve and a catheter base. The overall exchange type balloon dilatation catheter is compact in structural design, and due to the special design of the balloon braid layer, the pressure resistance of the balloon is improved, and transverse breakage of the balloon can be avoided; and due to the design of the protective sleeve, the pushing performance of the balloon catheter can be improved, and the fish mouth effect is avoided.

A catheter insertion device is provided as an external applicator attachable to a medicine delivery device. The medicine delivery device has an internal module therein that comprises an insertion needle hub and needle, and a catheter hub and catheter. An external applicator comprises a drive and spring that drive a drive pin into the medicine delivery device to force the needle hub and catheter hub downward until the catheter hub locks in the downward position and the needle hub returns into the external applicator. An automatic release feature automatically disengaged the external applicator from the medicine delivery device when insertion is complete.

The utility model discloses a shock wave catheter easy to pass through in a target blood vessel, which comprises a catheter seat, an outer tube, an inner tube, a balloon and at least one pair of spiral leads which are arranged at intervals, and the spiral leads are spirally wound on the periphery of a tail section. A plurality of pairs of exposed areas which are opposite in the axial direction of the inner pipe are formed on at least one pair of spiral wires in the length direction of the spiral wires, and a pair of discharge electrodes are formed in one pair of exposed areas. When the shock wave catheter passes through a target blood vessel, the pipe diameter of the shock wave catheter can be reduced based on the mode that the spiral wire forms the discharge electrode, meanwhile, the flexibility of the shock wave catheter at the tail section can be improved, and therefore the shock wave catheter can pass through the target blood vessel more easily.

The invention provides a radial artery radiography cannula, and relates to the technical field of medical instruments, the radial artery radiography cannula comprises an inner tube and an outer cannula, the inner tube comprises an inner tube catheter seat and an inner tube body, the outer cannula comprises an outer cannula catheter seat and an outer cannula body, the inner tube catheter seat is provided with a connector part, and the connector part can be connected with the outer cannula catheter seat in a matched mode. The inner tube body penetrates into the outer tube body, the outer tube and the inner tube can be locked and matched through the connector part and the outer tube catheter base, the adaptability is good, gas embolism or thrombus is not prone to being caused, the end of the middle cavity is sealed through the locking position, blood cannot overflow, and the influence on surgical operation is avoided; the inner tube and the outer tube are synchronous when a large blood vessel on an arch is subjected to super-selection, the outer tube and the inner tube are separated after the outer tube points to a target blood vessel, super-selection is conducted towards the far end to the target blood vessel under the support of the guide wire and the inner tube, the controllability of the catheter is improved, and the super-selection difficulty is reduced.

A catheter assembly can include a catheter (100), a controller (104), and an internal power source (106). The catheter can include a catheter tube (108) and a catheter hub (102), wherein a proximal-end portion of the catheter tube can be disposed in the catheter hub. The catheter tube can incorporate a plurality of piezoelectric transducers (112) into a length of the catheter tube. The plurality of piezoelectric transducers can be configured as a plurality of vibrators for vibrating and, thereby, inhibiting buildup of biomaterial on a luminal or abluminal surface of the catheter tube by way of vibrations along the length of the catheter tube when the catheter tube is placed in a vasculature. The controller can include a processor and memory, wherein the controller can be configured to control at least the plurality of piezoelectric transducers. The internal power source can be configured to power the controller and the plurality of piezoelectric transducers.

The invention discloses a balloon dilatation catheter and a blood vessel dilatation device. The balloon dilatation catheter comprises an inner tube, an outer tube, a catheter base and a balloon, and a guide wire is arranged in the inner tube in a penetrating mode; the outer pipe is sleeved on the inner pipe; a first inlet and a second inlet are formed in the guide pipe seat, the first inlet is communicated with the inner pipe, and the second inlet is communicated with the outer pipe; the multiple balloons are sequentially arranged on the inner tube in a sleeving mode, and the interiors of the balloons are communicated with the outer tube. First grooves are uniformly distributed in the side surface of the balloon; when the balloon dilatation catheter is used, media are introduced into the balloons through the second connectors to enable the balloons to be filled and expanded, the flat portions, adjacent to the first grooves, of the balloons form occipital portions, the adjacent balloons make contact with each other to form the second grooves, the occipital portions can exert pressure on diseased regions to conduct dilatation, and therefore the diseased regions can be dilated. The first grooves and the second grooves which are evenly distributed can buffer stress borne by the released blood vessel during expansion, blood vessel injuries and interlayers are reduced, and meanwhile the treatment safety of a patient is guaranteed.

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.

The invention provides a balloon, a balloon dilatation catheter and a stent system, and particularly provides a balloon, a balloon dilatation catheter and a stent system suitable for bifurcated vascular lesion areas. The balloon comprises a balloon body, a far-end body and a near-end body, the far-end body comprises a first cone part, the near-end body comprises a second cone part, and at least the size of the cone angle alpha 1 of the first cone part and the size of the diameter d of the balloon in the expansion state meet the following relational expression: alpha 1 = k1ld + b1; wherein k1 belongs to [11.009, 21.478], b1 belongs to [7.98, 20.8], d is more than or equal to 5 and less than or equal to 16, and d is a positive integer. The balloon dilatation catheter comprises the balloon, a pushing tube and a catheter seat. According to the balloon, the balloon dilatation catheter and the stent system, the structure of the balloon is improved and optimized, and the balloon, the balloon dilatation catheter and the stent system are simple in structure, easy to produce, capable of achieving industrialization, low in cost, easy to operate clinically and capable of accurately releasing and positioning the stent. Therefore, the positioning accuracy of the stent in a bifurcated vascular lesion area and the success rate of an operation are greatly improved.

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 utility model discloses a blood vessel occluder which comprises a catheter seat and a catheter fixedly installed at one end of the catheter seat, when the blood vessel occluder is used, a balloon extends into a blood vessel, liquid or gas is injected into the balloon through a balloon pressure filling and releasing connector, so that the balloon is expanded, barb-shaped hard strips on the surface of the balloon are opened in an umbrella shape, the balloon is pulled, and the barb-shaped hard strips are pricked into the inner wall of the blood vessel. The lead is tightened, so that the barb-shaped hard strips tightly hook the inner wall of the blood vessel without loosening, the inner wall of the blood vessel is closed, and the barb-shaped hard strips are separated; the medical adhesive for sealing the blood vessel is injected from the adhesive injection port of the catheter seat, the balloon is decompressed and contracted, the balloon is taken out from the blood vessel, the leads are tightened to close the blood vessel again, the tightening ring is pushed to be tightly attached to the outer wall of the blood vessel, the leads are tightened, and the redundant leads are cut off. According to the blood vessel plugging device, after the blood vessel closing process is completed, the barb-shaped hard strips, the blood vessel sealing medical adhesive, the line tightening ring and part of the lead are left in the body of a patient and can be decomposed and metabolized by the human body after a period of time, and secondary taking out is not needed.

An antimicrobial catheter can include one or more polymeric inserts of a filled polymer in a catheter tube, a catheter hub, one or more extension legs, one or more extension-leg fittings or a combination thereof. Each polymeric insert of the one-or-more polymeric inserts can provide a portion of a luminal surface in a catheter component selected from the catheter tube, the catheter hub, the one-or-more extension legs, and the one-or-more extension-leg fittings. Further, each polymeric insert of the one-or-more polymeric inserts can elute one or more antimicrobial metal species therefrom upon contact with a liquid. A method of making such an antimicrobial catheter can include a polymeric insert-molding operation of molding a plurality of the polymeric inserts as well as a catheter component-molding operation of molding a plurality of at least one catheter component selected from the catheter tube, the catheter hub, an extension leg, and an extension-leg fitting.