53 results about "Catheterise" patented technology

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.

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.

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.

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.

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.

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.

This is a hypotube probe comprising a main body, a curved tip, a stylet, and an electrode. The main body is configured to be placed in the patient's subdural space and has a curved tip at its anterior end. This tip is configured to be inserted at an angle to the subdural space in order to advance the main body to the target site within the subdural space. The stylet is configured to enter the channel and, after being inserted into the channel, advance to the distal opening and seal the distal opening. The electrode is configured to be inserted into the channel and then advance through the distal opening for placement in contact with the dural tissue within the subdural space.

A. catheter insertion device includes a housing, a button including a body and at least one arm extending from the body into the housing to movably couple the button to the housing, the button is movable between a raised position and a depressed position, and a needle hub coupled to the button to move with the button between the raised position and the depressed position. In the raised position, the body of the button is a first distance from the needle hub that reduces visibility of the needle hub through the body of the button. In the depressed position, the body of the button is a second distance from the needle hub less than a first distance that allows visibility of the needle hub through the body of the button.

Disclosed is a thrombus extraction device (1) comprising: a rotating body (2) formed by a plurality of first longitudinal struts (20), wherein the first longitudinal struts (20) are fixed only at a proximal end (21) and a distal end (22), and the rotating body (2) is in an expanded configuration when the rotating body is in a free state, and is in a contracted configuration when the rotating body is inserted into a catheter; a distal body (3) connected to the distal end (22) of the rotating body (2), the distal body is in an expanded configuration when the distal body is in a free state, and is in a contracted configuration when the distal body is inserted into a catheter; wherein at least a portion of each first longitudinal strut (20) is radially expanded and circumferentially rotated during the unfolding stage of the rotating body (2) from the contracted configuration to the expanded configuration.

Integrated IV catheters can have a side port that facilities drawing blood. The side port provides separate fluid pathways for drawing blood and for injecting fluids via an extension set. The side port can be configured to allow the extension set to be primed while a blood sample is collected. In this way, the collection of a blood sample at the time of catheter insertion is facilitated.

The invention relates to an insertion catheter system for inserting and positioning a heart valve stent into the body of a patient, wherein the stent comprises a main body having a proximal end region and an opposite distal end region and at least two fastening / anchoring / compartmentalizing / positioning arches which are fastened to the main body and which, in the compressed form of the stent, are oriented cranially in the direction of the distal end region of the main body and, in the expanded form of the stent, are oriented caudally in the direction of the proximal end region of the main body. The insertion catheter system has a handle, which is provided at the distal end of the catheter system and with which the catheter tip can be manipulated. According to the invention, it is provided in particular that the handle has actuating means which interact with the catheter tip in such a way that, upon actuation of the actuating means, the at least two fastening / anchoring / compartmentalizing / positioning arches of the stent can be successively released in steps from the catheter tip after a predefined or predefinable sequence of events.

The present application relates to a kind of ultrasonic imaging system and ultrasonic imaging catheter assembly, ultrasonic imaging catheter assembly includes: imaging catheter, catheter socket and catheter terminal.Catheter terminal is equipped with electric connection part, and electric connection part is electrically connected with radio frequency terminal by plug-in manner.When assembling, imaging catheter and catheter socket are mutually plugged, and unlocking piece can drive first clamping part to open to loosen core;In addition, catheter terminal is inserted along the axial direction to make catheter terminal and core clamping connection, and electric connection part and radio frequency terminal in the core interior are electrically connected by plug-in manner.In addition, catheter terminal can drive core to retract along the axial direction and / or circumferential direction arbitrary angle self-rotation, can realize to obtain the image information of full range of intravascular wall.Relative to the assembly mode of prior art, overall structure is simpler, can improve work efficiency, while reducing production assembly cost, production assembly process is simple, production assembly process is stable, conducive to mass production.

When conducting technical training and evaluation for endovascular surgery, the behavior of the catheter, particularly the movement of the wire inside the catheter sheath, can be observed more clearly without the use of X-rays. [Solution] An apparatus for observing a vascular model into which a catheter has been inserted, wherein the light-emitting unit comprises a light source and a polarizing element and irradiates a reference irradiation light containing a first polarization toward the object to be observed, the polarizing element has a polarization axis in a first direction and transmits the first polarization that is circularly polarized in the first direction from the light output from the light source, the first polarization is transmitted through the catheter sheath and at least a part of its light component has its polarization state modulated, the light-receiving unit comprises a photodetector and an analyzer, the analyzer has a polarization axis that constitutes circular polarization in a second direction different from the first direction, the photodetector receives the light component of circular polarization in the second direction that has passed through the analyzer from the reference irradiation light that has been irradiated toward the object to be observed and interfered with by the object to be observed, and generates an observation output, the image generation unit receives the observation output and generates an image, and the display displays the image.

Provided is a medical instrument according to which, even when an optical fiber is inserted into a catheter, it is possible to secure enough space inside the catheter .　A medical instrument 1 includes: a catheter 10 to be inserted into a living body; and an optical fiber 20 which is inserted into the catheter 10 and emits light for indicating a tip part of the catheter 10. The optical fiber 20 is made of quartz glass and has an outer diameter dimension D of 200 μm or less.

A robotic surgical method for repair of an infrarenal aortic aneurysm with an aneurysm sac in an aorta of a patient includes introducing at least one arm and a camera of a robotic surgical system into designated ports of the patient. Then, a graft is attached to a proximal wall of the aorta. The aneurysm sac is decompressed by inflating an intravascular balloon and initiating flow in an arteriovenous circuit. Anterior posterior walls of the aneurysm sac are stapled and the robotic incisions are closed. A method for inserting a conduit includes deploying an intimal umbrella, partially expanding an expandable graft, deploying an adventitial umbrella, and fully inflating the expandable stent.

The anti-infection protection device for the cardiovascular interventional operation comprises a catheter sheath and a protection base, the upper surface of the protection base is fixedly connected with a first disinfection box, the inner wall of the first disinfection box is fixedly connected with a supporting block, the surface of one side of the supporting block is fixedly connected with an installation frame, and balls are rotationally installed on the inner side wall of the installation frame; a disinfection ring is buckled on the inner side of the mounting frame, the outer side surface of the disinfection ring is coated with disinfection cotton, the disinfection cotton on the side surface of the disinfection ring makes contact with the balls on the inner side wall of the mounting frame, a box cover is arranged at the upper end of the disinfection box, the lower end of the box cover is in threaded connection with the first disinfection box, and a second disinfection box is arranged on the upper surface of the box cover. The problems that a traditional anti-infection protection device is simple in structure and cannot comprehensively disinfect a catheter in the using process are solved, the disinfection effect of the anti-infection protection device on a pipeline inserted into a catheter sheath is improved, meanwhile, the situation that disinfectant in the anti-infection protection device is used up in the using process is also avoided, and the service life of the anti-infection protection device is prolonged. And the durability of the anti-infection protection device is improved.

Provided is a light radiation medical treatment device that can reliably irradiate a required place in a hollow organ with a laser beam. This light radiation medical treatment device comprises: a catheter 20 that can be inserted into a treatment instrument passage 11b formed in a video scope 11 constituting an endoscope system 10; and a light radiator 30 that has an optical fiber probe 32 capable of being inserted into the catheter 20, and causes a laser beam emitted from a laser device 31 to enter from a proximal end side of the optical fiber probe 32 and to be emitted from a light emission section 32a provided to the distal end side of the optical fiber probe 32, wherein the catheter 20 has a cylindrical body section 21 that can be inserted into a hollow organ L of a living body, and a balloon section 22 that is provided to the distal end side of the body section 21 in a manner allowing expansion and contraction in the radial direction of the body section 21, and can, by expanding, bring an outer peripheral surface at least partially into contact with an inner wall of the hollow organ L, and the laser beam emitted from the light emission section 32a passes through the balloon section 22 and is emitted from the outer surface side of the balloon section 22.

We provide a gastrointestinal drug delivery device for use in gastroenterology. [Solution] The gastrointestinal drug delivery device comprises a housing 1, a guide tube 2 fitted and fixed inside the housing, and a drug delivery tube 3 slidably inserted inside the guide tube. A tip guide portion 4 is fixed to one end of the guide tube opposite to the housing side, and an expandable curved plate 5 arranged in the circumferential direction is slidably provided on the outer circumference of the side wall of the tip guide portion. An operating drive cylinder 6 is slidably provided inside the housing, and the operating drive cylinder is linked to the drug delivery tube and the expandable curved plate. Multiple locking holes are formed in a row in the housing, and a tapered locking member 7 equipped with a first spring is slidably provided on the outer circumference of the operating drive cylinder. When in use, the tip guide portion is inserted into the anus first, the expandable curved plate is gradually expanded by moving the operating drive cylinder, and the amount of expansion is controlled by the locking structure, and the drug delivery tube is introduced into the rectum to deliver the drug.

The application discloses a drug delivery device, which is used for delivering drug or flushing fluid into parotid gland or salivary gland, and comprises: a catheter assembly which comprises a catheter which is arranged to be a hollow structure along the axial direction, the far end of the catheter is provided with an opening, and the catheter is a flexible tube; the mandrel assembly comprises a mandrel which can be movably inserted into the catheter and is higher than the catheter in rigidity, and meanwhile the far end of the mandrel penetrates through the opening to be exposed out of the catheter; wherein the far end of the catheter is provided with a conical tip structure, and the far end of the mandrel is provided with a hemispherical tip structure. The dosing device can easily inject the medicine or the flushing fluid into the parotid gland duct or the salivary gland duct on the premise that the duct wall is prevented from being damaged.

The invention relates to a lower limb deep vein thrombus cleaning device, and belongs to the technical field of medical instruments. The thrombus removal device comprises a thrombus removal mesh basket assembly, the front end is inserted into a catheter in the blood flowing direction and penetrates through a vein valve and thrombus, and the thrombus removal mesh basket assembly is used for cleaning and containing the thrombus at the front end of the vein valve; the rotary telescopic assembly is arranged at the rear end of the thrombus extraction mesh basket assembly and used for controlling the thrombus extraction mesh basket assembly to stretch out, draw back and rotate in the target blood vessel so as to cut or scrape thrombus; the front end of the collecting assembly is inserted into the catheter in the blood flowing direction, abuts against the rear end of the vein valve and is used for cleaning and collecting thrombus at the front end and the rear end of the vein valve. The problem of cleaning blind areas caused by irregular outlines of the vein valve areas is effectively solved, and the thrombus cleaning device has the advantages that thrombus at the front end and the rear end of the vein valve can be cleaned at the same time, cleaning blind areas are effectively reduced, thoroughness of thrombus cleaning is improved, and thrombus residual risks are reduced.

A system and method by which a catheter tube may be automatically driven to a target location within the body of a subject, such as an enteral cavity or respiratory tract of the subject. The catheter tube may include an imaging device, a transceiver, a spectrometer, and a battery embedded in a tube wall at a distal end of the catheter tube. The imaging device may capture image data of structures proximal to the distal end of the catheter tube. An articulated stylet may be inserted in the catheter tube, which may be controlled by a robotic control engine according to navigation data generated by an artificial intelligence (AI) model based on the topographical image data. The spectrometer may sample and identify biomarkers proximal to the catheter tube. A remote computer may implement the robotic control engine and AI model and may wirelessly receive the image data from the transceiver.

Provided is a drainage tube guide device comprising: a head part which extends in one direction; a guide tube which has a hollow formed therein and extends downward from the head part; and a peeling part which is in communication with the hollow of the guide tube and peels tissue from the front while being inserted thereinto.

The invention relates to the technical field of medical catheter production, and discloses an automatic medical catheter gluing and assembling device which comprises a catheter feeding mechanism, a plug-in feeding mechanism and a gluing and positioning mechanism, the catheter feeding mechanism is used for conveying a catheter to the gluing and positioning mechanism, and a plug-in propelling device is arranged between the plug-in feeding mechanism and the gluing and positioning mechanism; the automatic assembling machine has the following advantages that 1, automatic feeding and gluing of the guide pipe and automatic feeding and assembling of the connector are achieved, manual intervention is not needed in the assembling production process, manpower resources are saved, and the production efficiency is high; and 2, the positioning rod penetrates through the connector and is inserted into the guide pipe, so that the connector can be accurately and stably inserted and assembled with the guide pipe, glue can be prevented from entering the guide pipe, and the product assembly production quality is improved.

The present invention relates to an ablation assembly to treat target regions of a tissue in organs comprising:an ablation catheter comprising an elongate shaft having a longitudinal main direction (X-X), said elongate shaft comprising at least a shaft distal portion, said shaft distal portion comprising a shaft distal portion distal end;said ablation catheter comprising an inner lumen arranged within the elongate shaft;said ablation catheter comprising a shaft ablation assembly fixedly disposed at said shaft distal portion, the shaft ablation assembly being configured to deliver both thermal energy for ablating said tissue and non-thermal energy for treating said tissue;at least a shape setting mandrel disposed within the ablation catheter, the shape setting mandrel being insertable within the inner lumen and removable from the inner lumen,wherein the shape setting mandrel is free to move in respect of the inner lumen avoiding any constraint with said shaft distal portion during the shape setting mandrel insertion,wherein the shape setting mandrel comprises at least a pre-shaped configuration and the shape setting mandrel is reversibly deformable between at least a straight loaded configuration and said pre-shaped configuration,wherein, when the shape setting mandrel is fully inserted in the shaft distal portion, the shape setting mandrel is configured to shape set said shaft distal portion with said pre-shaped configuration.

The utility model discloses a prostate function therapeutic instrument based on cavity thermal therapy, which belongs to the technical field of medical instruments and comprises a catheter, a liquid collecting pipeline, a flushing liquid pipeline, a first water bag pipeline and a second water bag pipeline are arranged in an inner cavity of the catheter in a penetrating manner, and the prostate function therapeutic instrument further comprises a connector and a butt joint pipe. The connector comprises an inserting column, a center hole is formed in the circle center of the inserting column, and three sets of arc-shaped clamping grooves are formed in one end face of the inserting column. The first connecting pipe and the second connecting pipe are still connected to external equipment, after a new guide pipe is replaced, the position of the second connecting pipe is adjusted so that the position of the second connecting pipe can correspond to the position of each pipeline in the guide pipe, after the position of the second connecting pipe is adjusted, the inserting column is inserted into the guide pipe, and butt joint can be achieved. And the pipeline does not need to be detached from external equipment, so that the operation convenience is greatly improved.

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 needle shield device may include a needle housing and a needle assembly slideably coupled to the needle housing. The needle housing may include a nose portion configured to be inserted into a catheter adapter and an elongated body having a distal end, a proximal end, and a slot disposed between the distal end and the proximal end of the elongated body. A distal portion of the slot may be sealed to prevent blood from leaking out of the needle housing. The needle assembly may include a needle grip, an introducer needle having a sharp distal tip and a proximal end, and a needle hub having a protuberance coupled to the needle grip and slideably fit within the slot. In response to movement of the needle assembly to a proximal position with respect to the needle housing, the sharp distal tip may be disposed within the needle housing.

The utility model 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, and the endoscope body handle part 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 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 utility model, the camera shooting assembly and the data line for transmitting 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.

A treatment method and a treatment system capable of effectively irradiating an antibody-photosensitive substance bound to a tumor cell with a near-infrared ray. The treatment method includes: intravenously administering the antibody-photosensitive substance; inserting a guide wire and a catheter into a main artery of an organ having the tumor cell; removing the guide wire; inserting an optical fiber into the catheter and advancing the optical fiber to a target position while checking a position of the optical fiber with an orientation marker disposed on the optical fiber; and irradiating the antibody-photosensitive substance bound to a tumor cell membrane with the near-infrared ray from the optical fiber while reducing an influence of blood in the artery on the near-infrared ray after 12 hours to 36 hours from intravenous administration.