152 results about "Catheterise" patented technology

Disclosed herein are clot treatment systems including integrated / systemized mechanical thrombectomy devices and clot treatment devices, and associated devices and methods. In some embodiments, a method of removing clot material from a blood vessel of patient includes inserting a catheter to proximate the clot material within the blood vessel while radially constraining a clot treatment device and an embolic protection device within the catheter. The method can further include moving the catheter proximally to deploy the clot treatment device at least partially distal to clot material within the blood vessel, and then moving the catheter further proximally to deploy the embolic protection device at least partially proximal to the clot material.

Disclosed herein are clot treatment systems including integrated / systemized mechanical thrombectomy devices and clot treatment devices, and associated devices and methods. In some embodiments, a method of removing clot material from a blood vessel of patient includes inserting a catheter to proximate the clot material within the blood vessel while radially constraining a clot treatment device and an embolic protection device within the catheter. The method can further include moving the catheter proximally to deploy the clot treatment device at least partially distal to clot material within the blood vessel, and then moving the catheter further proximally to deploy the embolic protection device at least partially proximal to the clot material.

A system, method, and article for delivering an antimicrobial agent into the lumen of a trans-dermal catheter are disclosed. In an embodiment, the system comprises an elongate member configured for insertion into a lumen of a catheter, and the elongate member containing an antimicrobial. An antimicrobial agent can be placed on an interior surface of a retaining ring.

A blood pump assembly includes an introducer sheath with a proximal end and a distal end, a pump body which extends within the introducer sheath, and a catheter that interfaces with the pump body and extends proximally though the introducer sheath. In a rest state, the introducer sheath forms an oval cross-section sized to encompass the catheter and a medical device. In a constrained state when the pump body is within the introducer sheath, the cross-section of the introducer sheath is circular. The malleability of the introducer sheath allows larger medical devices to be passed through the introducer sheath, while still allowing other devices to be inserted through the introducer sheath after the pump has been guided through. A perimeter of oval cross-section of the introducer sheath is equal to the perimeter of the circular cross-section of the introducer sheath.

The invention discloses a guiding device for cardiovascular interventional operation guide wire insertion, and belongs to the technical field of guide wire guiding. The guide wire guiding and twisting assembly comprises a guiding seat, the guide wire guiding and twisting assembly comprises a sliding block, a positioning pin is elastically inserted into the sliding block in a sliding mode, the sliding block is rotationally connected with a second shifting wheel, and the second shifting wheel is elastically connected with a first shifting wheel; the guide wire is clamped by the first dial wheel and the second dial wheel, the first dial wheel and the second dial wheel are both of a fan-shaped structure and form a round wheel, and the guide wire is inserted into the catheter sheath along the guide seat through the round wheel which is shifted in a reciprocating mode. The first poking wheel and the second poking wheel are poked and arranged at the sliding block, and the round wheel clamps the guide wire; a positioning pin is extruded by a second poking wheel and inserted into a guide seat for positioning, so that the situation that the hands, the guide wire and the catheter sheath of a doctor are polluted due to the fact that blood in the catheter sheath flows out is avoided, and the guide wire stored in a guide wire storage tube is poked in a reciprocating mode through a guide wire guide twisting assembly and inserted into the catheter sheath; and the problem that blood vessels are scratched due to the fact that the guide wire is pulled out of the catheter sheath by mistake is solved.

An extravascular system is provided which includes a catheter adapter having a blood control septum configured to control flow of a fluid through the catheter adapter, the catheter adapter further having a catheter configured for intravenous insertion. The extravascular system further includes a septum activator slidably inserted within the catheter adapter and configured for advancement through the blood control septum to provide a fluid pathway through the blood control septum. Further still, the extravascular system includes an external safety mechanism comprising a needle hub and a needle shield interconnected via a tether, wherein the needle shield includes a safety clip that is configured to retain a sharpened end of the introducer needle within the needle shield. Some implementations further comprise an access port forming a portion of the catheter adapter and providing selective access to the lumen of the catheter adapter.

The invention provides an electronic endoscope which comprises a disposable endoscope sheath and a reusable endoscope body, the endoscope body comprises a camera shooting assembly, an endoscope body handle part and an endoscope plug, the camera shooting assembly is electrically connected with the endoscope plug, the camera shooting assembly is connected to the far end of the endoscope body handle part, and the endoscope body handle part is electrically connected with the endoscope plug. The endoscope plug is connected to the near end of the endoscope body handle part; the endoscope sheath comprises an insertion catheter and a catheter handle part, the catheter handle part is connected to the near end of the insertion catheter, an endoscope body access port is formed in the catheter handle part, the camera component extends into the insertion catheter through the endoscope body access port, and the endoscope handle part is detachably connected with the catheter handle part. According to the invention, the camera shooting assembly and the data line for transmitting the camera shooting data are repeatedly used, so that the data line which is repeatedly used is a high-quality cable, the stability of data transmission is ensured, the anti-interference performance of the product is improved, and the like.

An improved stent delivery device configured to have radiopaque characteristics without sacrificing the structural integrity or functionality of the device itself is disclosed. In at least one embodiment, the stent delivery device provides a plurality of individual strands woven together to form a self-expanding stent delivery structure having a proximal end and an opposite distal end, the delivery structure forming an elongate initial shape for insertion of a catheter. At least one radiopaque marker is coaxially disposed within and secured to the circumferentially inner surface of the delivery structure. Thus, the delivery structure has an initial outer diameter that is substantially uniform along the entire length of the delivery structure.

The utility model discloses a bending-adjustable microcatheter, which comprises a grip mechanism, a microcatheter mechanism is fixed on the side surface of the grip mechanism, the microcatheter mechanism comprises a connecting seat fixed on the side surface of the grip mechanism, a catheter body is fixed on the side surface of the connecting seat, a support sleeve is fixed on the inner wall of the catheter body, and the support sleeve is fixed on the inner wall of the catheter body. The supporting sleeve is of a net-shaped structure, a guide sleeve is installed on the side face of the catheter body through a connecting sleeve, a fixing plate and a fixing ball are fixed in the guide sleeve, a guide wire is installed on the fixing ball, and the guide wire penetrates through the fixing plate and is inserted into the catheter body. Compared with the prior art, the device has the advantages that the grip mechanism is arranged, the first winding disc and the second winding disc are driven to rotate by the adjusting mechanism in the grip mechanism, the second pull rope can be unwound when the first pull rope is wound, the first pull rope can be unwound when the second pull rope is wound, then the fixed ball in the guide sleeve is guided to be bent, and the device is simple in structure and convenient to operate. The use is very convenient.

A needle is provided that can be used for introducing or aspirating fluids to a patient or as an introducer needle for positioning and inserting a catheter, such as a peripheral IV catheter into a patient. The needle can be an introducer needle that extends from the distal end of the catheter during insertion. The needle has an insertion tip with a configuration to assist penetration into a vein with a reduced incidence of injuring the inner surface of the vein or inadvertently passing through side wall of the vein. The needle tip can be farmed with a curved distal end surface where the pointed tip is spaced radially inward relative to the outer surface of the needle. In another embodiment the needle tip can have a reverse beveled surface having an axial length, angle, and curvature to assist in penetrating the vein with a reduced incidence of transfixing the vein.

Provided is an extension catheter excellent in strength for fixing a linear member to a cylindrical member. The extension catheter according to the present invention is inserted into a catheter and can be protruded from an opening on a distal side of the catheter. The extension catheter comprises a cylindrical member and a linear member with a distal end portion thereof fixed to the cylindrical member. The cylindrical member comprises an inner layer containing a fluororesin and a proximal end portion located closer to a proximal side than a proximal end of the inner layer. The linear member is fixed to the cylindrical member at least inside the proximal end portion.

The utility model discloses an elastic super-selection loach type bourdon tube lens system which comprises an operation portion and an insertion catheter connected with the operation portion, the insertion catheter is internally provided with at least a first channel, a second channel, a third channel and a fourth channel, a lens assembly is arranged in the third channel, and the fourth channel is internally provided with a second channel. An elastic metal wire is arranged in the tube wall of the insertion catheter, the elastic metal wire is spirally arranged in the length direction of the insertion catheter, and a hydrophilic coating is further arranged on the periphery of the insertion catheter. According to the elastic super-selection loach type bourdon tube lens system, the structure of the insertion catheter is improved, so that the elastic super-selection loach type bourdon tube lens system has better flexibility and strength, not only is good in torsion control performance and convenient to operate, but also is provided with a thin-wall large-cavity structure, and internal pipelines or tube bundles are convenient to arrange.

The utility model relates to the technical field of bipolar electrodes, and discloses a bipolar electrode for transnasal skull base surgery, which comprises a holding rod, the front surface of the holding rod is fixedly connected with an insertion catheter, the front end of the outer surface of the insertion catheter is fixedly connected with a suction sleeve, and the inner surface of the suction sleeve is movably connected with a first transmission tube. One end of the first transmission pipe is fixedly connected with a suction pump, an electrode plate is arranged at the front end of the insertion catheter, the electrode plate is controlled through linkage of the pressure sensor and the air cylinder, and when the pressing adjusting block is pinched and touches the pressure sensor, the telescopic rod can be rapidly made to move, so that the electrode plate is controlled to be opened or closed. By means of the control, a doctor can more accurately control the tip end of the electrode plate, the risk that surrounding tissue is accidentally touched or accidentally injured is reduced, the situation that the surgical field is shielded by accumulated hydrops is avoided by removing the hydrops, the doctor can more clearly observe the surgical site, and the possibility of misoperation is reduced.

The conduit carrier includes a carrier housing that includes first and second contact ends and a vacuum channel extending between them. The vacuum channel is configured to connect to a vacuum source via the first contact end. An engagement mechanism is connected to the second contact end. The engagement mechanism is configured to engage with the conduit in a releasable manner during nerve repair surgery. A separator is configured to extend from the second contact end. When the engagement mechanism engages with the conduit during nerve repair surgery, the vacuum channel is connected to a vacuum port in the conduit via the second contact end so that a vacuum source can draw a vacuum into the conduit, and the separator extends into the conduit through the vacuum port, creating a predetermined regeneration gap between the first and second nerve stumps inserted into the conduit.

A device for inserting a catheter according to a disclosed embodiment comprises: a needle including a needle body extending in a first direction, a tip forming a distal end in the first direction, and a pair of edge portions which meet each other at an acute angle at the tip, have widths increasing in both directions perpendicular to the first direction toward a second direction opposite to the first direction, and form sharp edges so that the skin of a patient can be incised in the both directions; and a sheath having a guide hole extending in the first direction therein so that a catheter can be inserted, wherein the needle body is disposed through the guide hole so that the tip and the edge portions of the needle are positioned in the first direction of the guide hole, and the outer diameter of the distal end in the first direction is greater than the maximum width of the pair of edge portions in both directions.

Inventions and embodiments of the present disclosure provide, inter alia, systems and methods for treating pain. In some embodiments, the system includes a catheter including a proximal end, a distal end, and electrodes. The system can also include a catheter locking device arranged near the proximal end of the catheter and, via rotation, projects tines for locking the catheter. Furthermore, in some embodiments, the system includes a housing affixed to the proximate end of the catheter and an injection port including a through-channel having a proximal end with a luer-lock. The system includes a needle having a lumen and that inserts into the catheter's lumen, a proximal end that mates and lock with the luer-lock, and a distal end that protrudes past the catheter's distal end when inserted within the catheter's lumen. The system further includes a pulse generator configured to provide electric pulses to the electrodes. The Characteristics of the electrical are configured by a program on a computing device connected to external pulse generator.

A shunt insertion system comprises a positioning assembly, a driving assembly coupled with the positioning assembly, and a mounting assembly coupled with the driving assembly for the insertion of a catheter. The driving assembly is configured to drive a mounting assembly. The mounting assembly comprises a sensor configured to sense resistance and generate sensor data indicating the resistance.

A method for observing a patient is described, the method comprising inserting a catheter for health process navigation. A CT scan is performed on a body part of the patient. Raw data from the CT scan is processed to create three-dimensional image data, and the image data is stored in a data storage device. A projector receives light generated in a pattern representing the image data, and a waveguide guides the light to a retina of an eye of an observer, and light from an outer surface of the body is sent to the retina of the eye so that the observer sees the outer surface of the body enhanced with the body part rendered with the processed data.

The invention generally relates to a catheter sterilization system using semiconductor light emitting devices (LEDs) to sterilize the lumen of a catheter. The sterilization system may include a sterilization head with attached semiconductor LEDs sized for insertion into the catheter. The sterilization head is connected to the linearly extending connector allowing an operator to move the sterilization head through the catheter. The sterilization system may alternatively include microLEDs attached to the inner sidewalls of the catheter to sterilize the lumen of the catheter.

Provided is an extension catheter easy to insert into a tube inside a body. This extension catheter is inserted into a catheter and can protrude from a distal-side opening of the catheter. The extension catheter comprises a tubular member and a linear member having a distal end portion fixed to the tubular member. The tubular member includes a first resin having a portion located outside of the linear member in the radial direction and a second resin having a lower Shore D hardness than the first resin. A cross section of the tubular member in the radial direction has three regions obtained by equally dividing the tubular member in a direction passing through the centroid of the linear member and the centroid of the lumen of the tubular member, and designated as a first region, a second region, and a third region in order of increasing distance from the linear member. The first resin is positioned in the first region or in the first region and the second region, and the second resin is positioned at least in the third region. The first resin has a first exposed surface exposed on the outer surface of the tubular member.

The present solution provides a system and method for transround window membrane drug delivery. In summary, the system includes a micropump connected to a flexible cannula. The cannula can be threaded through a handpiece that can be used to pierce a patient's round window membrane. The handpiece allows the cannula to be inserted into the round window membrane, improving distribution of the delivered drug throughout the inner ear. The present solution can function as a small, implantable or wearable device that can be used for chronic and acute transround window membrane drug delivery. This configuration allows the micropump to deliver small amounts of drug from an internal reservoir continuously or intermittently over a period of days to months.

This application relates to the field of bladder irrigation, and specifically discloses an irrigation device for visual transurethral resection of bladder tumors, which is arranged at one end of a catheter to connect the catheter with the bladder; it includes: a cylinder body with a piston cavity; a storage body with a chamber; a connecting piece fixedly arranged at one end of the catheter; a piston slidably arranged in the piston cavity; a sieving assembly arranged in the chamber to filter tumor tissues; wherein, an endoscope is arranged on the catheter to observe the internal condition of the bladder; the connecting piece has a joint inserted into the catheter nozzle to connect the catheter; the storage body is arranged on the cylinder body and is inserted into the connecting piece together with one end of the cylinder body to form a fixation; a first one-way valve communicating with the chamber and a second one-way valve communicating with the piston cavity are arranged in the connecting piece; a communication port is formed between the opposite parts of the inner wall of the piston cavity and the inner wall of the chamber to communicate the piston cavity and the chamber; the beneficial effect of this application lies in providing an irrigation device for visual transurethral resection of bladder tumors with a sieving function.

The invention is entitled "Breath control during cardiac ablation." The invention discloses a method for invasive cardiac treatment, the method comprising inserting a catheter into a beating heart of a patient who is anesthetically paralyzed and intubated for ventilation via a transvascular path, and temporarily stopping ventilation of the patient after the catheter is inserted. The method comprises moving the catheter between a plurality of locations of myocardial tissue of the heart with the ventilation stopped, and ablating the myocardial tissue of the heart at the plurality of locations with the ventilation stopped.

The medical catheter with the spiral inner cavity comprises a catheter body, a fixing ring, a fixing plate and a spiral inner tube, the spiral inner tube is arranged in the catheter body in a connected mode, the catheter body is movably connected with the spiral inner tube, fixing pieces are arranged on the two sides in the catheter body in a connected mode, and the fixing pieces are movably connected with the fixing ring. The catheter body is fixedly connected with the fixing piece. The two sets of fixing pieces are arranged at the two ends of the interior of the catheter body, when the spiral inner tube is inserted into the catheter body, the positions of the two ends of the spiral inner tube can be fixed through the fixing pieces, meanwhile, due to the spiral arrangement of the spiral inner tube, the staying time of liquid medicine in the catheter body can be prolonged, and therefore the liquid medicine is more stable. Meanwhile, the medicine liquid can be uniformly heated, and the spiral inner pipe can be quickly disassembled and replaced through the arrangement of a fixing piece.

The utility model discloses a tearable sheathing canal with an anti-reflux component, which relates to the field of medical instruments, and comprises a tearable sheathing canal and a tearable sheath seat arranged at the near end of the sheathing canal, a sealing rubber mat is arranged in the sheath seat, an expandable or contractible annular balloon is arranged on the peripheral surface of the inner cavity of the sheath seat, and the annular balloon is provided with an anti-reflux component in the expansion state. The annular balloon which can be inflated and deflated is arranged in the inner cavity of the sheath base, when the catheter is inserted into the sheath base, the gap between the sheath base and the catheter can be filled, the sheath base and the catheter form a sealed state, and the phenomenon that blood flows back when the catheter is inserted into and withdrawn from the sheath tube is effectively avoided; in addition, by additionally arranging a fixing structure between the sheath base and the balloon cavity, the balloon body can be tightly attached to the inner wall of the sheath base when the balloon is in a shrunken state, and the balloon does not affect insertion and retreating of the catheter into and out of the tearable sheath tube.

A neurovascular catheter for delivery through an aorta and into an ostium can include a tubular body between a proximal end to a distal end. The tubular body can have a length of 140 cm to 180 cm, a 5Fr size, and an internal diameter of about 0.065" to about 0.067". The tubular body can include a proximal portion and a distal portion. The distal portion can include a polymer layer and a layer of braids. The proximal portion can include a hypotube and the layer of braids.

A flexible substrate includes a number of layers, where each layer has a number of printed wires. The printed substrate is environmentally protected. The printed substrate is rolled and inserted into a catheter. Connectors are attached to each end of the rolled substrate. The connectors are connected to sensors at a distal end of the catheter and with electrical cards or a cable connector at a proximate end of the catheter. At least one layer of the substrate is connected to a coil in a magnetic sensor. A layer in which the traces are shorted in the distal end is used to measure a magnetic interference. These measurements are used by a processor or hardware to cancel out the magnetic interference effect on the other layers. Another printed substrate can be wrapped within the catheter shaft and used for non-magnetic type sensors.

The intravascular ultrasonic navigation device in infusion port implantation and extraction and the working method can assist a doctor in monitoring the delivery position of a catheter tip in real time during infusion port implantation and evaluating the conditions in an indwelling vein and around the catheter tip in real time during infusion port extraction. A male seat interface (31) and a Y-shaped connector (32) are arranged at the two ends of the disposable sterile ultrasonic interface connecting line respectively, the male seat interface is connected with a portable ultrasonic imager, the Y-shaped connector comprises an 18-channel signal male seat (321) arranged on the periphery of an operation head end and matched with a tubular cable in a catheter wall, a catheter male seat with a hollow pointed end is arranged in the center of the operation head end, and the catheter male seat is matched with a catheter tail end cavity. The supporting guide wire is adaptively inserted into the catheter male seat tube cavity; the operation tail end is provided with a 18-channel cable (322) which is internally connected with a male socket interface; the branch end is a Raulerson spring guide wire injector female seat interface (323), a tube cavity extends from a hollow catheter male seat tube cavity at the running head end, and a support guide wire is led out from the catheter.

The application relates to an auxiliary device for medical catheter gluing, and relates to the technical field of medical product assembly. The device comprises a synchronous transmission mechanism and a synchronous gluing mechanism. A gluing hole is arranged on a gluing seat. A sliding rod is arranged in a gluing shaft in a sliding mode. A sealing head is arranged on the sliding rod. A first elastic element is arranged in the gluing shaft and used for providing a pre-tightening force of the sealing head tending to block the gluing hole. A sealing mechanism is arranged on a glue box. The sealing mechanism comprises a fixing sleeve, a supporting seat, a clamping block and a driving assembly. The application realizes initial blocking of the gluing hole through the abutting of the slidable sealing head and the gluing hole. When the catheter is inserted, the sealing head is pushed to slide and the gluing hole is opened. When the catheter is not inserted, the position of the sealing head in the gluing hole is unchanged. Meanwhile, the clamping block is driven by the driving assembly to be closed to clamp and seal the outer wall of the catheter body, so that the technical effects of automatic leakage prevention when the catheter is not inserted and no damage to the glue layer when the catheter is withdrawn are achieved, and the gluing quality and production efficiency are provided.

A hemoshield device for reducing hemolysis in a catheter system may include a distal end, which may include a distal connector. The distal connector may include a tapered male luer configured to insert into a proximal end of a catheter hub to form a tight fluid seal. The hemoshield device may include a proximal end, which may include an adapter configured to receive a blood collection device. The adapter may include a non-patient cannula configured to pierce the blood collection device. The hemoshield device may include an extension tube. A distal end of the extension tube may be fixed within the tapered male luer, and a proximal end of the extension tube may be fixed within the adapter. The extension tube may include a fluid pathway extending from the distal connector to the adapter.