64 results about "Catheter placement" patented technology

A catheter placement system for placing a catheter, the system includes a stylet with an optical fiber extending therethrough, the stylet body extending between a proximal end and a distal tip. A console, equipped with optical logic, delivers broadband incidence light to the optical fiber and receives reflected light signals to determine positional information about the stylet body. The stylet body is configured to be separable at a point between the proximal end and distal tip to allow a catheter to be advanced over a distal portion of the stylet body. The distal portion is configured to be reattached to the proximal portion to reconfirm the position of the stylet body distal tip prior to removal of the stylet from the catheter. The system further includes a severing device that is easy to actuate and ensures a clean, perpendicular cut to facilitate reconnection between the proximal and distal portions.

A catheter placement system for placing a catheter, the system including a stylet with an optical fiber (135) extending therethrough, a stylet body (290) extending between a proximal end and a distal tip (290). A console (20), equipped with optical logic, delivers broadband incidence light to the optical fiber and receives reflected light signals to determine positional information about the stylet body. The stylet body is configured to be separable at a point between the proximal end and distal tip to allow a catheter to be advanced over a distal portion of the stylet body. The distal portion is configured to be reattached to the proximal portion to reconfirm the position of the stylet body distal tip prior to removal of the stylet from the catheter. The system further includes a severing device that is easy to actuate and ensures a clean, perpendicular cut to facilitate reconnection between the proximal and distal portions.

An integrated peripheral intravenous (IV) catheter configured for blood draw both at the time of catheter placement and during catheter indwell. The peripheral IV catheter includes a catheter adapter having a catheter configured to be inserted into a patient's vasculature and a side inlet defining a fluid pathway into and out of the catheter. The peripheral IV catheter also includes a side port member having a main branch, the main branch including a distal end configured to couple the side port member to the side inlet of the catheter adapter and a connector portion accessible via a proximal end of the main branch. Additionally, the peripheral IV catheter includes a blood collection adapter removably and directly coupled to the connector portion of the side port member at the proximal end of the main branch. Furthermore, side pore member of the peripheral IV catheter may include a side branch.

Advanced catheter placement systems require disengaging a needle from the guidewire without disturbing a position of the guidewire within the vasculature. Embodiments include withdrawing the needle proximally and drawing the needle over a splitter system that includes a splitter wedge. The splitter system separates the needle along a longitudinal axis. A portion of the guidewire can then pass between a first portion and a second portion of the needle, allowing the needle to disengage the guidewire. A catheter disposed on a proximal portion of the guidewire can then be advanced thereover into the vasculature. A needle safety system can adhere a puncture-resistant adhesive tape to the split portions of the needle. The tape can encapsulate the portions of the needle mitigating any damage or trauma caused by sharpened edges of the needle portions.

The invention discloses a medical bend-adjusting catheter testing tool and a testing method thereof.The medical bend-adjusting catheter testing tool comprises a workbench, a testing frame is arranged at the top of the workbench and comprises a base, the base is installed in the middle of the top of the workbench, a head plate is installed at one end of the top of the base, and a tail plate is installed at the other end of the top of the base; the end, close to the tail plate, of the top of the base is provided with a body plate, the middle of the head plate, the middle of the tail plate and the middle of the body plate are each provided with a guide sleeve used for allowing a guide pipe to penetrate through, and the three guide sleeves are located on the same central axis. According to the invention, the 360-degree protractor and the 180-degree protractor on the head plate can respectively detect the deformation of the bending section of the catheter in the Y-axis direction and the X-axis direction, and the 180-degree protractor near the body plate is used for detecting the bending degree of the catheter body. The catheter deformation attitude information cannot be comprehensively and accurately obtained, and the test comprehensiveness and accuracy are improved.

This invention provides a neurointerventional catheter assembly, relating to the field of medical device technology, comprising a catheter body; a flexible tip at the distal end of the catheter body; a side hole on the sidewall of the flexible tip; a guide portion on the flexible tip; a through hole in the middle of the flexible tip; and a control guidewire passing through the middle of the catheter body, the control guidewire having a protrusion with a diameter larger than the through hole diameter. This invention features a flexible tip with a side hole located next to the through hole, allowing the side hole to be directly aligned with a branch vessel. The flexible tip guides a stent catheter, which then passes through the side hole, enabling the stent catheter to directly enter the branch vessel. This reduces the difficulty of stent catheter placement, thereby reducing surgical complexity and improving treatment outcomes.

The lacrimal passage probe comprises a sheath, a guide head, a guide wire and an orientation mechanism. The sheath comprises a working channel, the guide head is arranged at the front end of the sheath, and the guide wire is arranged in the working channel. After the guide wire is bent, a traction part is formed at the bent position, the traction part is arranged on the outer side of the far end of the working channel, the guide wire extends along the working channel, and the near end of the guide wire extends out of the near end of the working channel. And the orientation mechanism is used for fixing the direction of the traction part of the guide wire. In the withdrawing process, the guide wire and the sheath are locked through the locking mechanism, and integral withdrawing can be achieved. Due to the arrangement of the orientation mechanism, the direction of the traction part can be well fixed, so that the traction part can be smoothly exposed out of the anterior nostril in the direction of the nasal cavity, in the whole withdrawing process, the lag phenomenon of the guide wire can be well prevented, and the safety and success of the catheterization process are better guaranteed; and the clinical operation requirements during clinical middle catheter placement can be better met.

The present application relates to the field of medical devices, and discloses a gastrointestinal catheterization mirror and a method for using the same. The catheterization mirror comprises a camera device, an illumination element arranged in the camera device, the illumination element being used for illuminating an object, a traction member comprising at least one threading channel, one end of the traction member being connected to the camera device, and the other end being connected to a display device, and a dissolvable fixing member, the camera device and the traction member being fixed in front of a gastrointestinal catheter by the dissolvable fixing member. The gastrointestinal catheterization mirror can be used on gastrointestinal catheters of various specifications, realizes visible guided catheterization operation and withdrawal of the camera device after the fixing member is dissolved, thereby getting rid of blind insertion of the gastrointestinal catheter, and further eliminating the need for confirmation of the catheter placement position across clinical departments, and the gastrointestinal catheterization mirror has low manufacturing cost and is disposable.

This invention relates to the field of medical device technology, and in particular discloses a medical puncture and catheter placement training manikin, comprising a torso with two arms fixed to both sides. A power supply is fixed inside the torso. Each arm includes a support frame covered with a biomimetic rubber sheath, and at least one fixed vein is fixed to the inner wall of the support frame. The advantages are: multiple combinations can be selected to simulate problems encountered during and after PICC placement; the situation encountered by the operator in each training session can differ from the previous one; and the use of an ultrasound detector and display screen allows instructors to monitor the catheter's position and the operator's specific actions during placement in real time. This facilitates simulated practice and assessment of PICC placement techniques for medical personnel, allowing for evaluation of their mastery of PICC placement techniques and improving their proficiency.

The invention belongs to the technical field of medical instruments, and provides an embryo transfer catheter auxiliary device which comprises an inner supporting core and a heating wire. The inner supporting core is formed by coaxially connecting a supporting rod and a flexible pipe with a closed front end, the flexible pipe is filled with a phase change material, and the heating wire penetrates through the flexible pipe and is used for heating and softening the material. A containing cavity is formed in the supporting rod, a slidable piston is arranged in the containing cavity, the multiple supporting pieces are connected in series through a connecting rope and connected to the piston, and the farthest end abuts against the closed end of the flexible pipe. The piston moves to drive the supporting piece to enter and exit from the flexible pipe, and dynamic adjustment of the volume of the phase-change material is achieved. The supporting piece is made of an ultrasonic visual material or structure, and intraoperative positioning is facilitated. Due to the adoption of the structure, the device provides rigid support during catheter placement, can actively reduce the volume and soften after positioning, realizes non-traction and low-resistance withdrawal, supports ultrasonic real-time guidance, and remarkably improves the positioning precision and the operation safety of the outer tube.

The utility model provides an improved chest strap, and relates to the technical field of cardiac surgery supplies, the improved chest strap comprises a main strap, side straps, a fixing strap and a connecting strap, the two ends of the lower side of the main strap are both connected with the side straps, a cushion strap is clamped and pasted between the two side straps, and through the arrangement of the side straps, the cushion strap and a protection pad, when a catheter penetrates, the fixing strap is fixed to the fixing strap when the catheter penetrates into the fixing strap. The catheter can be placed at any position of the catheter penetrating groove, the catheter penetrating groove adopts a through groove mode and is not limited by the position of the catheter, the applicability of the catheter penetrating groove is enhanced, the cushion belt is placed on the lower side of the catheter and makes direct contact with the skin, foreign body sensation brought by the catheter to a patient is reduced, and the protection pad covers the upper end of the catheter and plays a role in protecting the catheter. Through the arrangement of the fixing band and the connecting band, the hook and the hanging ring are fixed, the third loop face hook-and-loop fastener and the fourth hook face hook-and-loop fastener are fixed in an adhering mode, the double-fixing mode is adopted, the fixing effect is better, the hook and the hanging ring are connected in a relatively fixed mode, and the hook and the hanging ring are not prone to being opened.

The utility model relates to the related field of medical instruments, in particular to an epidural anesthesia catheter fixing device which comprises an adhesive tape, a fixing seat, a rotating ball, a connecting rod, a guide cylinder, a first bolt, an arc-shaped clamping plate, a first silica gel sheet, a second silica gel sheet, an arc-shaped protrusion, a spring, a groove, an arc-shaped plate, a second bolt, a rubber pad and the like. The rotating ball and the fixing seat are arranged, and the rotator rotates in the fixing seat to drive the connecting rod and the guide cylinder to rotate, so that the path angle of placement of the anesthesia catheter is adjusted, the path of the catheter is optimized, unnecessary bending or twisting of the catheter is avoided, stable flowing of liquid medicine in the catheter is kept, and the anesthesia catheter is convenient to use. Stable liquid medicine conveying is facilitated, and the practicability of the fixing device is improved.

A catheter placement system including a catheter, a needle for creating an insertion site, and a skin nicking device for enlarging the insertion site. A catheter placement device includes the skin nicking device slidably coupled with the needle, where the skin nicking device has one or more blades attached to a frame thereof. Distally displacing the skin nicking device along the needle causes the blade to nick the skin to enlarge the insertion site. A shield of the skin nicking device transitions between a safe configuration encapsulating the blade and a use configuration exposing the blade and the shield may be biased toward the safe configuration. A latch secures the shield in the safe configuration and an actuator releases the latch. A sheath of the skin nicking device includes the needle slidably disposed within a lumen thereof and a sharp tip of the blade embedded within a wall thereof.

This disclosure generally relates to multi-lumen catheters, ports, and adapters for delivering fluid to a tissue or cavity in a subject and methods thereof. The multi-lumen catheters disclosed herein comprise a catheter comprising a guide lumen configured to receive a stylet (e.g., for placement of the catheter within a cavity / tissue) or a stylet port of the adapter (e.g., to anchor the catheter to the adapter); and a fluid lumen configured to receive a fluid port of the adapter (e.g., to receive a fluid via the fluid port into the fluid lumen). In some embodiments, the multi-lumen catheter is size-adjustable. Other aspects of the disclosure relate to systems comprising multi-lumen catheters in fluidic communication with an adapter in fluidic communication with a reservoir. Additional aspects of the disclosure relate to methods of inserting the described catheters, ports, adapters, and / or systems into a tissue or cavity of a subject (e.g., brain tissue).

A method, apparatus and computer program product, the method comprising receiving input from a force sensor on a catheter, the catheter comprising electrodes for ablating a heart of a patient, the catheter placed at a location within the heart; based at least on the received input, calculating a predicted PFA ablation index (PFA AI) of an ablation that would be caused by applying by the catheter force equal to the assessment at the location for a predetermined number of electrical pulses having predetermined magnitude and predetermined duration, wherein said calculation is in accordance with a predefined formula; and displaying the predicted PFA AI to a user of the catheter.

This utility model provides a mobile radial artery puncture and catheter placement fixation frame, including a support plate, a connecting rod, a palm fixation strap, an inflatable wrist support module, a rotation adjustment module, a fixing rod, and a positioning bolt. The connecting rod is located at the bottom of the support plate along its length. The middle part of the palm fixation strap is movably and adjustablely fitted onto the connecting rod, and both ends of the palm fixation strap extend out from both sides of the support plate. The two ends of the palm fixation strap are fixedly connected together in an adjustable position, and the palm fixation strap is used to fix the patient's palm. The inflatable wrist support module is movably and adjustablely located on the support plate, and the inflatable wrist support module is used to elevate the patient's wrist. The rotation adjustment module is located at the bottom of the support plate and is used to adjust the angle of the support plate. The fixing rod is connected to the rotation adjustment module and is located below the support plate. The fixing rod has a limiting groove for the movable infusion rod to be inserted. The positioning bolt passes through the fixing rod and can extend into the limiting groove.

A method, apparatus and computer program product, the method comprising receiving input from a force sensor on a catheter, the catheter comprising electrodes for ablating a heart of a patient, the catheter placed at a location within the heart; based at least on the received input, calculating a predicted PFA ablation index (PFA AI) of an ablation that would be caused by applying by the catheter force equal to the assessment at the location for a predetermined number of electrical pulses having predetermined magnitude and predetermined duration, wherein said calculation is in accordance with a predefined formula; and displaying the predicted PFA AI to a user of the catheter.

A portable device is configured to connect directly to an intraosseous (IO) catheter and provide a clinician with actionable information to determine whether the catheter is placed correctly, such as whether the catheter is placed in the medullary cavity of bone. The device provides this information leveraging the presence or absence of arterial pressure waveforms. A method for assessing placement of an intraosseous catheter includes coupling a pressure transducer to an IO catheter placed in tissue, obtaining a continuous pressure waveform from a pressure signal provided by the pressure transducer, and assessing placement of the catheter based on the continuous pressure waveform.

The invention discloses an intelligent navigation type double-cannula cystic focus puncture drainage device based on visualization and pressure sensing, relates to the technical field of minimally invasive interventional medical instruments, and solves the problems that in the prior art, in the cystic focus puncture drainage process, the lowest point of the liquid level still cannot be accurately positioned in real time, and the puncture drainage effect is poor. And an effective means for objectively and quantitatively evaluating the residual liquid amount is also lacked. Comprising an outer sleeve; the outer sleeve sequentially comprises a needle tip section, a needle tube section and a connecting section with the tail end used for being connected with a negative pressure structure. The drainage straight tube is coaxially arranged in the outer sleeve, and the drainage straight tube is provided with a central cavity channel for a puncture needle to penetrate through; wherein; according to the invention, visual pressure measurement is combined, continuous indwelling drainage and repeated operation can be carried out, and flushing or dosing can be carried out through a small pipeline on the side wall of the drainage tube, so that the situation that drainage liquid reversely flows into a cavity due to dosing through a drainage main pipeline in the past is avoided, and the situation that the drainage liquid is cut open and placed in the tube in an operation is avoided.

The application discloses an access type peritoneal dialysis real-time dilution detection device, which comprises a drainage unit, a dilution unit, a mixing unit, a detection unit and an abdominal pressure instrument; the dilution unit and the mixing unit are connected through a catheter; the mixing unit and the detection unit are connected through a catheter; the drainage unit comprises a sterile bag, a catheter placement device, a fine catheter and a buckle; the buckle is arranged at a first outlet end of the sterile bag and is fixedly installed in the sterile bag; the catheter placement device is located at a second outlet end of the sterile bag and is fixedly installed in the sterile bag; two ends of the two fine catheters pass through the catheter placement device; one end of one fine catheter is connected with the peristaltic pump of the mixing unit through the first outlet, and the other end of the other fine catheter is connected with the abdominal pressure instrument through the first outlet. The access type peritoneal dialysis real-time dilution detection device reduces the glucose concentration to the linear detection range of a commercially available glucose detector through real-time dilution, and there is no need to develop and test a higher-range glucose detector.

The utility model discloses a kind of equipment for metal combined catheter pressure pit repair cleaning, including control cabinet and cleaning cabinet;Control cabinet side is equipped with output interface, cleaning cabinet side is equipped with second input interface, output interface is connected with second input interface by connecting pipeline;Hydraulic repair module is equipped in control cabinet, support frame is equipped in cleaning cabinet, the combined catheter to be cleaned is placed into cleaning cabinet, second connecting end head is fixed on support frame, first connecting end head inserts into marble, and is connected with second input interface;When starting hydraulic repair module, hydraulic oil enters into combined catheter by output interface, connecting pipeline, second input interface and first connecting end head, and push marble to roll forward in combined catheter, hydraulic oil and marble are finally flushed out from second connecting end head, to realize the pressure pit repair of combined catheter.The utility model has the characteristics of compact structure, convenient operation, high reliability, significantly improves the repair efficiency of combined catheter pressure pit.

Disclosed is a method for detecting breast cancer biomarkers, which can be applied in cancer diagnosis and monitoring the effectiveness of cancer therapy. This fiber-optic biosensor-based approach employs advanced photonic techniques to identify specific biomarkers with high sensitivity and specificity. The technical result is achieved through a system including a fabricated and biologically functionalized fiber-optic biosensor, immersed in a controlled fluidic environment that mimics in situ conditions. The biosensor is integrated into a commercially available catheter, which is placed within a flow-through tube containing serum. The work focuses on enhancing biosensor performance under simulated blood-like conditions, including optimization of sensor positioning, packaging modifications, and assessment of specificity and sensitivity under varying pressure levels. The aim is to improve the efficiency, accuracy, and reliability of cancer biomarker detection, ultimately enabling earlier and more precise diagnosis for patient benefit.

The utility model discloses an extracorporeal circulation puncture suite which comprises a dilator, a puncture accessory and a suture accessory, and the dilator used for blood vessel dilation, the puncture accessory used for puncture and the suture accessory used for fixing a pipeline are sealed in a packaging bag body after being sterilized through ethylene oxide. The dilator is provided with dilation heads for dilating blood vessels continuously in a staged mode, and the number of the dilation heads on the dilator can be adjusted. The extracorporeal circulation puncture kit has the advantages that the multi-stage dilator with the adjustable dilation head in the extracorporeal circulation puncture kit is used for performing staged continuous dilation on blood vessels, repeated replacement of the dilator is avoided, the risk of infection of a patient is reduced while the operation efficiency is improved, and due to the staged continuous dilation, intubation tubes of different specifications are high in universality and high in practicability. Due to the design that the hydrophilic coating and the hardening material are additionally arranged on the guide wire, the surface of the guide wire is smoother, puncture catheterization is smoother and more accurate, due to the arrangement of the suture accessory, the problems of intubation fixing and skin wound suture are solved in a clinical one-stop mode, and the preparation workload of clinical operations is reduced.

The invention discloses a lumbar cistern drainage operation kit, and relates to the technical field of medical instruments. The invention relates to a lumbar cisterna drainage operation kit which comprises a lumbar cisterna drainage device and an auxiliary instrument, and is characterized in that the lumbar cisterna drainage device comprises a lumbar cisterna drainage tube, a Luer taper with a protective sleeve, a three-way valve, a far-end three-way valve and a drainage bag, and the rear end of the lumbar cisterna drainage tube is connected with the Luer taper with the protective sleeve; the Luer taper with the protective sleeve is connected with the three-way valve through the connecting pipe, the other port of the three-way valve is connected with the far-end three-way valve through the connecting pipe, the other port of the far-end three-way valve is connected with the drainage bag through the connecting pipe, and the front end of the lumbar cisterna drainage tube is connected with a puncture needle or a tunneling needle. Through the integrated specification and size design of the tunneling needle and the puncture needle, the situation that cerebrospinal fluid leaks from a lumbar cistern drainage puncture point is reduced, and the possibility that a lumbar cistern drainage tube is accidentally injured in the subcutaneous tunnel making process is reduced; and the developing line facilitates real-time positioning of the catheter during operation, and the catheter placement accuracy is improved.

An intravenous (IV) therapy system to facilitate the insertion of a catheter or another suitable IV device into a patient may include a band made of flexible material to be secured around a limb of a patient. The IV therapy system may include a window formed through the band to provide access to the patient's body. The IV therapy system may include a tourniquet formed within the band to selectively apply a pressure against the patient's body. The IV therapy system may include a blood vessel indicator to indicate where the catheter or other suitable IV device is to be inserted.

An insertion tool for inserting a catheter into a patient's body is disclosed. The insertion tool integrates needle insertion, guidewire advancement, and catheter insertion into a single device. The insertion tool comprises a housing in which at least a portion of the catheter is initially positioned; a hollow needle extending distally from the housing with at least a portion of the catheter pre-positioned on the hollow needle; and a guidewire pre-positioned within the hollow needle. A guidewire advancement assembly is also included for selectively advancing the guidewire distally beyond the distal end of the hollow needle in preparation for distal advancement of the catheter. A catheter advancement assembly is also included for selectively advancing the catheter into the patient's body. The catheter advancement assembly includes a mechanical gain mechanism coupled between the slide of the insertion tool and the catheter.

This utility model belongs to the field of medical tools, specifically disclosing a hemostatic compression device for hemodialysis catheters, including a shawl, a compression airbag assembly fixed to the inside of the shawl, an air pump, and a pressure monitoring assembly. The compression airbag assembly includes at least two independent first and second airbags. The first airbag is a cylindrical, point-like compression airbag used to compress the internal jugular vein puncture site, and the second airbag is a long, rectangular, linear compression airbag used to comprehensively compress the subcutaneous tunnel. The two airbags are connected to the air pump connector via independent inflation tubes, and the connector contains a one-way valve. The shawl has a fixing and adjustment structure consisting of buckles and nylon hook and loop fasteners. This device achieves effective hemostasis at different bleeding sites after TCC catheter placement through a precise point-line compression method, replacing manual pressure. The hemostatic effect is clear and reliable, the operation is convenient, and the pressure is adjustable and controllable.

A catheter placement system includes a catheter assembly, an external ultrasound probe, a tip location sensor, and a console. The catheter assembly includes a catheter, a magnetic component producing a magnetic field, and an electrocardiogram (ECG) sensor designed to measure an intravascular ECG signal. The external ultrasound probe includes user input controls. The tip location sensor is configured to detect the magnetic field of the magnetic component when the catheter is disposed in the patient, the magnetic field providing magnetic field information for locating the magnetic component relative to the tip location sensor, and to receive the intravascular ECG signal from the ECG sensor. The console is coupled to the tip location sensor and includes a processor and a display. The display is configured to show an image from the external ultrasound probe, a graphical representation of the magnetic component, and successive ECG waveforms detected by the ECG sensor.

The utility model discloses a kind of catheter placing cabinet, including cabinet, two lifting mechanisms are symmetrically installed on the inside two side walls of cabinet, two the storage board is installed between lifting mechanism, the storage board bottom end equidistance installation has boom. Advantageous effect lies in: the utility model is installed by motor, screw rod, slider and slide groove in cabinet and is made of electric lifting mechanism, so that the height of storage board can be automatically adjusted when adjusting by motor mobilizing screw rod rotation, saves the tedious operation of manual adjustment, the efficient adjustment use of storage board is convenient, simultaneously by being set up in each boom Place cavity, and installing limiting mechanism at the opening of each Place cavity bottom end, so that medical staff when using target catheter only needs to open the limiting mechanism at the corresponding Place cavity place, avoid the tedious operation of target catheter outside catheter removal, so that the use efficiency of target catheter is higher.