265 results about "External catheter" patented technology

A system for delivering a prosthetic heart valve may include, a handle, an outer catheter, an inner catheter, a nose cone coupled to the inner catheter, and an inflatable balloon having a proximal leg coupled to the outer catheter and a distal leg coupled to the nose cone or the inner catheter. A first valve retainer may be coupled to the inner catheter and positioned within the balloon. In an assembled state of the first valve retainer, an inner stop is directly fixed to the inner catheter and an outer stop is positioned around and coupled to the inner stop. The inner stop has a maximum outer diameter that is smaller than a maximum inner diameter of the distal leg. In the assembled condition of the first valve retainer, the outer stop has a maximum outer diameter that is larger than the maximum inner diameter of the distal leg.

Disclosed herein is a urine collection bag, system, and methods directed to automated measurement of a quantity of urine. The urine collection system can include the urine collection bag, a catheter, and flexible drainage tubing. The urine collection bag can include a collection area, force sensors, and circuitry configured to determine the volume of urine in the collection area based on pressure or weight measured by the force sensors, and the specific gravity of the urine. The catheter may include a small female external catheter (FEC) with an opening on a top side, a wicking catheter with a wicking area on a top side, a finger-mountable catheter, or a male external catheter (MEC). The tubing may be secured to a patient's leg with a stabilization device or a fabric strap. The catheter can remain on a patient while the patient stands or walks.

The invention belongs to the technical field of medical instruments, and particularly relates to a cryoablation catheter and an ablation system.The cryoablation catheter comprises an inner catheter body and an outer catheter body, the outer catheter body is coaxially arranged on the outer side of the inner catheter body in a sleeving mode, and the inner catheter body is configured to be of a multi-cavity structure; the multiple plugging assemblies are arranged on the outer side of the inner catheter; wherein in the initial state, the multiple plugging assemblies and the inner catheter are located in the outer catheter, and in the working state, the multiple plugging assemblies and the inner wall of the intestinal tract jointly form an ablation closed space. The cryoablation catheter is guided to a target position through the guide wire, the closed ablation space is formed through cooperation of the plugging assembly and the inner wall of the cavity, a freezing medium is input into the closed ablation space to conduct cryoablation on the inner wall of the cavity, an available treatment scheme is provided for patients suffering from type 2 diabetes, obesity or other cavity lesions, and meanwhile the treatment effect is improved. The device has the advantages of small trauma, less pain of patients, low surgical risk and the like.

The invention relates to the technical field of medical catheters, and particularly discloses an anti-bending intracranial double-catheter guiding catheter which comprises a catheter body formed by an outer catheter and an inner catheter inserted into the outer catheter, at least two anti-bending sections are arranged in the axial direction of the catheter body at intervals, and anti-bending supporting mechanisms are arranged in the anti-bending sections; the anti-bending supporting mechanism comprises an annular cavity and memory alloy spiral wires, the annular cavity is formed in the wall layer of the outer catheter, the multiple memory alloy spiral wires are arranged in the annular cavity in a circumferential array mode, temperature control pipes are arranged in the annular cavity and located in gaps among the multiple memory alloy spiral wires, and the temperature control pipes are in an S shape in the annular cavity; the circulating pipeline penetrates through the wall layer of the outer guide pipe and is communicated with the outside; a temperature medium is injected into the temperature control tube through the circulating pipeline, so that the memory alloy spiral wire is activated through temperature to generate a shape memory effect; therefore, dynamic adjustment of the anti-bending rigidity of the guide pipe is achieved.

Disclosed herein are applicators for female external catheters (“FECs”) and methods thereof. For example, an FEC can include a sidewall encircling a cavity that extends along a length of the FEC, a knoll of the sidewall that extends over the cavity in a sump end of the FEC, a catheter back opposite the cavity, and an applicator over the catheter back. The cavity can be configured to open toward a patient for voiding urine into the cavity. The knoll can be configured to be disposed over a vaginal introitus of the patient when the FEC is tucked between inner labia of the patient. The catheter back can extend from the sump end of the FEC to a drainage end of the FEC opposite the sump end of the FEC. The applicator can be configured for applying the FEC and holding the FEC in place during the voiding of the urine.

Disclosed herein is a urine collection bag, system, and methods directed to automated measurement of a quantity of urine. The urine collection system can include the urine collection bag, a catheter, and flexible drainage tubing. The urine collection bag can include a collection area, force sensors, and circuitry configured to determine the volume of urine in the collection area based on pressure or weight measured by the force sensors, and the specific gravity of the urine. The catheter may include a small female external catheter (FEC) with an opening on a top side, a wicking catheter with a wicking area on a top side, a finger-mountable catheter, or a male external catheter (MEC). The tubing may be secured to a patient's leg with a stabilization device or a fabric strap. The catheter can remain on a patient while the patient stands or walks.

The invention belongs to the technical field of medical instruments, and particularly relates to a prostate microwave ablation device which comprises a handle, an outer catheter is fixed to one end of the handle, an ablation cavity and a flushing cavity are formed in the outer catheter, and a needle outlet is formed in the end, away from the handle, of the outer catheter. The ablation cavity and the needle outlet are communicated with each other, the flushing cavity and the needle outlet are communicated with each other, a coil driving unit is assembled at the end, close to the outer catheter, of the interior of the handle, a needle advancing and retreating button is assembled at the upper end of the handle, and the coil driving unit and the needle advancing and retreating button are electrically connected through a wire. The prostate focus tissue is rapidly heated to about 150 DEG C through microwave energy, thermal coagulation and necrosis of the focus tissue are achieved, the method has the advantages of being rapid in effect taking and low in recurrence rate, meanwhile, water molecules are gasified through high temperature, the ablation process is conveniently monitored in real time through ultrasonic images, and compared with the prior art, the diameter is obviously reduced, and implementation of a soft needle is facilitated.

The invention provides an epidural catheter which comprises a first catheter body or a second catheter body, one to five cavities are annularly formed in the end section of the insertion end of the first catheter body at equal intervals around the catheter, and sensors are arranged in the cavities; 1-5 sensors are annularly attached to the outer surface of the end section of the second guide pipe body at equal intervals around the guide pipe, and the outer surface of the second guide pipe body is further coated with a coating. The invention further provides an epidural space catheterization position detection device which comprises an epidural catheter, a connecting tube, a demodulator and an analgesia pump, the demodulator is suitable for converting and displaying signals received by the sensor or conducting early warning, and the demodulator is further suitable for controlling or adjusting drug administration parameters of the analgesia pump according to the received signals; according to the detection device, the position of the epidural catheter in the epidural cavity is judged through an electric signal, epidural administration can be more accurately carried out, and the problems of epidural catheter placement, position monitoring and the like in epidural cavity catheterization are solved.

The invention belongs to the technical field of ablation instruments, and particularly relates to an ablation catheter and a working method thereof.The ablation catheter comprises an outer catheter body, a middle catheter body and an inner catheter body which are sequentially and coaxially arranged from outside to inside, the outer catheter body and the middle catheter body are in clearance fit, and the middle catheter body and the inner catheter body are in clearance fit; an electrode carrier is assembled at one end of the outer side of the outer catheter, an ablation electrode is arranged on the outer side of the electrode carrier, a handle is assembled at the other end of the outer catheter, and the handle is rotationally connected with the middle catheter. The unfolding angle of the supporting arm is adjusted by operating the driving key, so that the outer diameter of the electrode carrier is adjusted to adapt to patients with different duodenum inner diameters, meanwhile, the rotating angle of the supporting arm is adjusted, the form of the electrode carrier can be changed, the device can ablate all parts and the ball part of the duodenum, the application range is expanded, and the working efficiency is improved. And local excessive ablation or incomplete ablation caused by non-uniform pressure when the electrode carrier and the ablation electrode are in contact with the inner wall of the ball part is prevented.

The invention relates to the technical field of medical equipment, and discloses a visual intestinal obstruction catheter suite which comprises an outer catheter and a catheter head end, a drainage tube is fixedly installed in the outer catheter, a balloon used for fixing the outer catheter is fixedly installed on the outer wall of the outer catheter, an air baffle is fixedly installed on the outer wall of the drainage tube, and an air outlet is formed in the outer wall of the air baffle. And a variable connection unit is mounted on one side of the gas baffle. By arranging the variable connection unit, the water filling connector can control expansion of the balloon and release of medicine at the same time, after a medical worker conducts drainage and dredging on intestinal obstruction of a patient through the intestinal obstruction catheter kit, normal saline can be further injected, the normal saline drives the extrusion air bag to expand, and when the extrusion air bag expands, the medicine is released. When the extrusion air bag is extruded to drive the medicine storage rubber to properly expand, the medicine outlet hole formed in the medicine storage rubber is in an open state, and when the extrusion air bag is further expanded, liquid medicine in the medicine storage rubber can be extruded to an intestinal obstruction area through the medicine outlet hole to treat the intestinal obstruction area.

The invention relates to the technical field of medical devices, in particular to a digestive tract drug delivery system which comprises an intervention module, a drug delivery module and a drug delivery module. Comprising a closing unit and a dosing unit; the parameter acquisition module consists of a first image acquisition unit and a second image acquisition unit which are used for acquiring an image of a point to be applied with medicine, and a third image acquisition unit which is used for acquiring an ultrasonic image of the point to be applied with medicine; and the drug administration control module is used for determining that the operation mode of the drug administration module is a closed mode or a non-closed mode and preliminarily judging whether the closing of the closing unit meets a preset standard according to a closing characteristic value. According to the invention, the precision and safety of administration are improved.

Methods, apparatuses, and systems for performing a valve replacement or repair. Apparatuses may include systems and may include an outer catheter, one or more interchangeable inner catheters, a guidewire and an expandable chordae tendinae deflector. Also described herein are rapid pacing sheaths that may be used with any of these apparatuses and methods.

The invention provides a traction battery pack thermal management system. A battery pack thermal management system includes an outer conduit of a coolant transport column and an inner conduit of the coolant transport column. And the inner catheter is arranged in the outer catheter. The coolant delivery column is configured to deliver coolant in a first direction through the outer conduit and outside the inner conduit. The coolant delivery column is configured to deliver coolant through the inner conduit in an opposite second direction.

The application relates to the technical field of medical devices, in particular to a balloon for vascular access intervention, which comprises an outer catheter, a cleaning pipe and a telescopic hose, one end of the outer catheter is provided with a guide wire connecting port, the cleaning pipe is arranged on the guide wire connecting port, and a guide head is fixedly connected to the end of the outer catheter far from the guide wire connecting port; medicine is smeared into a medicine applying groove, the medicine in the medicine applying groove will be attached to the inner wall of the blood vessel of a patient after the balloon body is inflated, covers the wound, avoids the elution of the medicine when the balloon body moves, and improves the use rate of the medicine.

A system for assisting in the retrieval of a clot from a vessel. The system can include an outer catheter and an inner catheter disposed in a lumen of the outer catheter. The inner catheter can include a distal end, a proximal end, a distal segment, a proximal segment, and a lumen extending proximal of the distal end and terminating at a transfer port at the proximal end of the distal segment. A seal is located on the outer surface of the inner catheter distal of the transfer port, the seal capable of sealing against the lumen of the outer catheter so that aspiration applied through the outer catheter is configured to be transferred to the inner catheter.

The utility model relates to the technical field of catheter sheath regulation and control, especially a sheath type regulation and control device applied to disposable catheter sheaths, which comprises an external assembly frame, a turnover closing cover plate is installed on the assembly surface of the external assembly frame, an internal assembly groove for installing the disposable catheter sheath is arranged on the assembly surface of the external assembly frame and the turnover closing cover plate, and an external adjustment frame is installed on the side wall of the external assembly frame through a flexible connecting belt. The sheath type regulation and control device applied to the disposable catheter sheath adopts a sheath type structure design, can be directly sleeved on the existing catheter sheath, and is very simple and convenient to assemble and disassemble. The external adjustment frame is installed on the side wall of the external assembly frame through the flexible connecting belt, the external adjustment frame is sleeved on the external catheter, and then the flow or temperature of the catheter is adjusted by the hand control adjustment module inside the external control port, so that the operation is very simple and convenient.

The utility model discloses a coaxial double-layer omni-directional catheter electric control steering device of a flexible endoscope robot, which comprises an outer moving track, an inner moving track, an outer moving seat, an inner moving seat and a catheter, and the outer moving seat and the inner moving seat are movably connected onto the outer moving track and the inner moving track respectively. The catheter comprises an inner catheter body and an outer catheter body, the outer catheter body is connected to the outer moving seat, the inner catheter body is connected to the inner moving seat, the inner catheter body is located in the outer catheter body and movably connected with the outer catheter body, and an endoscope lens tube or a functional surgical instrument can enter a human body through the inner catheter body. An endoscope lens soft rope and surgical instruments such as a clamp holder, scissors and a laser head can be arranged in the inner tube. By means of the voice coil motor and the corresponding control circuit, the problem that in the prior art, the steering speed and precision are limited is effectively solved, precise multi-freedom-degree steering of the catheter is achieved, and the requirement for high-precision surgery is met.

A catheter including an expandable member, an outer catheter body including an outer catheter lumen, an inner tube positioned within the outer catheter lumen and defining an inner tube lumen, and an ultrasound transducer positioned in the expandable member. The transducer may include a transducer body comprising an inner surface defining a transducer lumen, wherein the transducer lumen is fluidically connected to the inner tube lumen, a transducer support member positioned at a distal portion of the transducer body and defining one or more fluid apertures through which the fluid is configured to flow from the transducer lumen into the expandable member, and a plurality of electrodes extending along at least a first portion of an outer surface of and at least a second portion of the inner surface of the transducer body.

The present application relates to the technical field of medical tools, in particular to a multifunctional thrombus suction device, which comprises an outer catheter and an inner catheter movably arranged in the outer catheter, a collecting net is installed at the distal end of the inner catheter, a fixing block and a traction block are arranged on the inner wall of the inner catheter close to the collecting net, a plurality of triangular blocks are arranged between the fixing block and the traction block in sequence, the triangular blocks are provided with first sliding holes penetrating through both sides, the fixing block is provided with second sliding holes aligned with the first sliding holes, a traction wire is arranged in the inner catheter, and the traction wire is fixedly connected with the traction block after sequentially passing through the second sliding holes and all the first sliding holes. The present application solves the problem that most of the current steel wires are basically attached to the inner wall and the sliding of the steel wire is realized through the steel wire hole, thereby driving the adjustment of the bending of the end part. However, the bending adjustment mode has limited adjustment angle, and with the increase of the adjustment bending, the adjustment difficulty also increases, which is not conducive to the bending adjustment in complex blood vessel positions.

The invention provides an in-aorta balloon catheter with a thrombus prevention function, and belongs to the technical field of aorta balloon counterpulsation. Comprising an expandable balloon, a first outer catheter is arranged in the center of the interior of the balloon, a thrombus filtering part is arranged at the end, away from the balloon, of the first outer catheter, a third outer catheter is arranged at the other end of the thrombus filtering part, and a connecting part which is arranged outside a body and used for allowing the balloon to be shrunken and inflated and allowing a guide wire to penetrate is arranged on the other side of the third outer catheter. By opening the thrombus filtering part and the filtering umbrella net, small thrombus fragments which are crushed and fall off by the balloon can be filtered and collected in the filtering umbrella net, so that the thrombus fragments are effectively prevented from flowing along with blood, and the small thrombus fragments which are accumulated between the closed filtering umbrella net and the outer catheter II are moved out of a human body along with the outer catheter I and the thrombus filtering part; the fallen small-fragment thrombus can be well removed from the human body, the risk that the small-fragment thrombus flows to the minimum end of a blood vessel along with blood flow to cause embolism is effectively reduced, and the using effect is greatly improved.

This invention discloses a catheter anti-entanglement device, belonging to the field of medical device technology. The device includes a main frame, a catheter holder, a drive shaft, and a gear set. The drive shaft is connected to the lifting mechanism of the patient bed or the backrest adjustment mechanism, and through the gear set and rack transmission structure, converts the movement of the patient bed into the synchronous lifting movement of the catheter holder, thereby dynamically adjusting the catheter's reserved length and preventing catheter entanglement caused by changes in patient position. The device also includes a damping adjustment component, which increases the clamping damping of the catheter when the catheter clamping device rises, effectively preventing the catheter from sliding and pulling. Furthermore, the catheter clamping device adopts a clamping wheel bracket structure with a torsion spring shaft, facilitating quick installation and release of the catheter. This invention achieves adaptive adjustment of catheter height and anti-slip locking through pure mechanical linkage, improving treatment safety, patient comfort, and nursing efficiency.

Example medical devices are disclosed herein. An example thrombectomy device includes a catheter assembly having an outer shaft having a proximal end region, a distal end region and a lumen, wherein the distal end region includes a first inflow orifice.Further, the catheter assembly includes an inner shaft having a distal end region and a lumen extending within at least a portion of the lumen of the outer shaft, wherein the distal end region of the inner shaft includes a second inflow orifice. Further, the catheter assembly includes a guidewire shaft extending through the lumen of the inner shaft, a tip member coupled to a distal end of the guidewire shaft and a handle configured to shift the catheter assembly such that first inflow orifice, the second inflow orifice, or both the first inflow orifice and the second inflow orifice are in fluid communication with the lumen of the inner shaft.

The present invention discloses a visual combined multi-parameter monitoring lung isolation catheter, which relates to the technical field of medical devices. The lung isolation catheter includes: an outer catheter, an inner catheter and an endotracheal intubation endoscope detection system; wherein the inner catheter cuff and the outer catheter cuff are both embedded with pressure sensors; the top of the outer catheter is connected to a four-way connector, which includes an outer catheter interface, an inner catheter interface, a suction interface, and a ventilation interface; the lower end of the outer catheter is embedded with a flushing pipe, a camera, a temperature sensor, and a pH sensor; the endotracheal intubation endoscope detection system includes a data processing module for locating the glottis using a trained glottis recognition model based on an improved Yolov5s network for the collected tracheal image; and is also used to compare the temperature value, pH value, and pressure value with a preset threshold value, and to alarm when the preset threshold value is exceeded. The present invention integrates the multi-parameter monitoring function into one, which can reduce the need for multiple intubations.

[Problem] Provision of an insertion system that is advantageous in reducing the withdrawal resistance of an internal catheter. [Solution] Delivery system, equipped with: an inner catheter 22; an outer catheter 24 through which the inner catheter 22 is passed and in which a first side hole 24b is formed; a tubular stent 10, which is arranged on a distal end side with respect to the outer catheter 24, wherein the inner catheter 22 is passed through the tubular stent 10; and a first thread-like element 16 which is inseparably connected to the tubular stent 10, wherein at least one section of the first thread-like element 16 runs between the inner catheter 22 and the outer catheter 24 on a side which is closer to the proximal end than the first side hole 24b, and wherein the first thread-like element 16 is passed through the first side hole 24b and is arranged outside the outer catheter 24 in at least a part of an axial region R from the distal end of the outer catheter 24 to the first side hole 24b.

An ablation balloon catheter includes an outer catheter shaft and an inflatable balloon whose first end is connected to the outer catheter shaft. The catheter includes a movable nose tip to which the second end of the inflatable balloon is connected. The catheter has a first electrode basket having a plurality of first splines, whose first end is connected to the outer catheter shaft and whose second end is connected to the nose tip. A second electrode basket is also provided, which has a plurality of second splines, whose first end is connected to the outer catheter shaft and whose second end is connected to the nose tip. The second electrode basket is positioned above the first electrode basket, and the plurality of first splines are rotationally offset from the plurality of second splines. One or more first splines support one or more electrodes, and one or more second splines support one or more electrodes. The catheter has an actuator that moves the nose tip axially to facilitate the transition of the first and second electrode baskets to a folded state when the balloon deflates. The multiple first splines and multiple second splines are configured to expand radially when the inflatable balloon is inflated, with the multiple first splines interposing between the multiple second splines.

The present invention relates to a spiral epidural catheter. The spiral epidural catheter comprises: a catheter body having a passage formed therein and an inlet / outlet hole formed at a tip of a distal end part thereof, wherein a procedure tool is insertable into the passage, the distal end part faces a lesion target, the inlet / outlet hole communicates with the passage and allows the procedure tool to enter and exit therethrough, and the distal end part is tapered with a cross-sectional area gradually reduced toward the inlet / outlet hole; and a spiral part protruding or recessed in a spiral shape on an outer circumferential surface of the distal end part of the catheter body.

A prosthetic heart valve delivery system may include a handle, an outer catheter extending distally from the handle, and a balloon mounted to a distal portion of the outer catheter. A prosthetic heart valve may be configured to be received on a balloon, and a balloon inflation system may be configured to inflate and deflate the balloon. The balloon may include a proximal balloon portion and a distal balloon portion positioned distal to the proximal balloon portion. The interior volume of the proximal balloon portion may be fluidly isolated from the interior volume of the distal balloon portion such that the proximal balloon portion and the distal balloon portion may be inflated independently of each other.

The application relates to the technical field of medical equipment, in particular to a medical catheter, which comprises a catheter main part and a catheterization bag connected to the catheter main part, characterized in that the catheter main part comprises an outer catheter and an inner catheter arranged in the inner part of the outer catheter, one end of the inner catheter is fixed to the inner part of the outer catheter, a catheterization opening is arranged at the position of the outer catheter close to the end of the inner catheter, the catheterization opening is communicated with the inner part of the inner catheter, the catheterization bag is connected to the end of the outer catheter and the inner catheter away from the catheterization opening, an inflatable air bag part is arranged at the position of the outer catheter close to the catheterization opening, an air flow channel is arranged between the outer catheter and the inner catheter, the air flow channel is communicated with the air bag part, and a fixing assembly for controlling the movement of the outer catheter and the inner catheter into the body is arranged on the outer catheter. The application has the effect of preventing urine from flowing along the catheter to the outside of the catheterization bag.

An ICE imaging system is disclosed that includes an intracardiac echocardiography (ICE) catheter having a longitudinal axis, a proximal end, and a distal end. The ICE catheter corresponds to a micro-electro-mechanical (MEMS) or other transducer-based phased array ultrasound catheter with an outer diameter of 6 French or less for delivery through the internal jugular vein, subclavian vein, axillary vein, unknown vein system to the heart chamber for lead placement for pacemaker or other implantable cardioverter defibrillator (ICD) devices. Further, the catheter shaft accommodates an electronic flexible cable in communication with the at least one signal trace and configured to direct the plurality of transducer array elements to transmit and receive an ultrasound beam, receive at least one signal from the plurality of transducer array elements, and transmit the ultrasound beam to the catheter shaft. And constructing at least one image of at least a portion of the heart based on the at least one signal.

The application belongs to the technical field of medical devices, and particularly relates to a kind of cryoablation catheter and ablation system, the cryoablation catheter includes inner catheter and outer catheter, the outer catheter is coaxially sleeved on the outside of inner catheter, the inner catheter is configured as a multi-lumen structure, further comprising: a plurality of sealing components, a plurality of the sealing components are arranged on the outside of inner catheter;Wherein, in the initial state, a plurality of the sealing components and inner catheter are located in the inside of outer catheter, in the working state, a plurality of the sealing components and intestinal wall form an ablation closed space together. The application guides the cryoablation catheter to the target position through the guide wire, forms the ablation closed space through the cooperation of sealing components and lumen wall, inputs the cryogenic medium into the ablation closed space to freeze and ablate the lumen wall, provides a usable treatment plan for type 2 diabetes, obesity or other lumen lesion patients, and has the advantages of small trauma, less pain for patients, low surgical risk, etc.