59 results about "Existing catheter" patented technology

Methods and apparatus are provided for closing incisions within biological tissue. In one embodiment, a device and method are provided for suturing biological tissue, such as, for example, an organ or blood vessel. The suturing apparatus is particularly well suited for suturing an incision made in an artery, such as the femoral artery, following a catheterization procedure. The device eliminates the need to apply pressure to a patient's thigh for an extended period of time, and eliminates many of the complications and costs associated with the creation of a thrombus patch. In addition, the device comprises an improved handle portion which enables the physician to quickly and easily apply suture. The handle portion is very reliable and easy to manipulate. The suturing may be used in combination with existing catheter sheath introducers.

A convertible multi-lumen catheter that may be used for hemodialysis or other indications involving infusion and/or withdrawal of fluids from the body. Unlike existing catheters having a set number of lumens which may limit their utility as both short and long-term venous vascular devices, the catheter of the invention allows one or more additional lumens during the acute phase of catheter use with removal of these lumens (i.e. conversion) for more permanent use. A typical example of this would be a triple lumen device for hemodialysis and antibiotic therapy during an acute infection with conversion to a chronic dual lumen hemodialysis catheter after successful treatment of the infection. The lumen is permanently or semi-permanently blocked using a biocompatible plastic obturator that is inserted into the unused lumen and locked and/or glued into place.

The present invention relates to catheters wherein at least one end of the balloon thereof is attached to the catheter shaft in a recess therein. Other aspects of the catheters will have both ends of the balloon recessedly secured. The recessed attachment of the balloon provides the opportunity to use a smaller stoma opening than has been necessary with prior catheters not having a recess.

Optical pressure sensor assemblies that can be used with existing catheters and imaging systems. Pressure sensors may be compatible with atherectomy and occlusion-crossing catheters, where intravascular pressure measurements at various vessel locations are needed to determine treatment efficacy. The pressure sensors may employ an optical pressure measurement mechanism using optical interferometry, and may be integrated with existing imaging modalities such as OCT. The pressure sensor assemblies may include a movable membrane that deflects in response to intravascular pressure; an optical fiber that transmits light to the movable membrane and receives light reflected or scattered back from the movable membrane into the fiber; and a processor or controller configured to determine the distance traveled by the light received in the fiber from the movable membrane, where the distance traveled is proportional to the intravascular pressure exerted against the membrane.

The present invention relates to a device (40) for urinary catheterisation. In particular, the invention relates to a device comprising an oblong member (1) for opening the human bladder and a guide member (2) for manipulating the oblong member. The guide member may be provided in a bend configuration e.g. being curled or folded, such that the size of the device is small in comparison with the size of known catheters, especially in comparison with existing catheters for male users.

The invention provides a device for uterine hemostasis, which has a catheter body, one side of the catheter body is provided with an air inlet pipe, the other end of the inlet pipe is provided with an air outlet, and the front end of the catheter body is provided with a thickened balloon , a screw rod with a ring-shaped blocking block is set outside the catheter body, and a fixed block is installed near the air intake pipe. Corresponding to the thread of the catheter, the front end of the catheter body is provided with a first through hole and a second through hole. The present invention is mainly used in cases of bleeding during early pregnancy at uterine scars, and can solve the problem of difficult fixation of the lower end of the existing catheter, and can be adjusted and fixed according to the length of the patient's cervix, so that the balloon in the uterine cavity is close to the uterine cavity The wall can reduce the dead space of the uterus, and the screw rod can be adjusted according to the amount of bleeding or the fluid can be pumped to reduce pressure.

The invention discloses a catheter, and relates to the field of medical apparatuses and instruments. The catheter is designed for solving the problem that an existing catheter injures mucosa on the inner wall of a bladder. The catheter comprises a catheter body. A water injection channel is arranged inside the catheter body. A first valve is arranged at the rear end of the water injection channel. A ball is arranged at the front portion of the catheter body and communicated with the front end of the water injection channel. The catheter is characterized in that a bullet-shaped high pressure water bag is arranged at the front portion of the ball, a plug is arranged at the rear portion of the high pressure water bag, the plug is plugged into the front end of the catheter body, the outer wall of the plug makes contact with the inner wall of the front end of the catheter body, a high pressure water injection pipe communicated with the high pressure water bag is arranged inside the catheter body, the front end of the high pressure water injection pipe and the high pressure water bag are fixed together, and a second valve is arranged at the rear end of the high pressure water injection channel. A flushing channel is arranged inside the catheter body. An opening in the front end of the flushing channel is located in front of the ball. The catheter has the advantage that vice-damage generated by an existing catheter on the mucosa on the inner wall of the bladder is lowered to the minimum.

The invention discloses a waste material recycling device for a micro-nano biomedical 3D printer. In view of the problem of waste materials in an existing catheter, the following scheme is proposed: the waste materials recycling device includes a collecting cylinder, wherein the upper portion of the collecting cylinder is fixedly connected with a printer body by bolts; a plurality of hydraulic cylinders are fixedly connected around the collecting cylinder by bolts; the output ends of the hydraulic cylinders are fixedly connected with sweeping plates by bolts; a guiding tube and the lower portion of the collecting cylinder are in thread connection; a motor is fixedly connected with one side of the guiding tube by bolts; and the output end of the motor is fixedly connected with a rotating shaft through a coupling. The waste material recycling device has the advantages of simple structure and convenient use; the waste materials can be collected and processed well; through the arrangementof the sweeping plates, the accumulation of the waste materials on the collecting cylinder can be prevented; the manual cleaning is reduced; the work intensity is reduced; through the arrangement of aheater, the waste materials can be molten so that the waste materials can be fixed and bonded to each other; and the waste materials are easy to collect and process.

Disclosed is a method of notifying medical professionals or caregivers of a type of peripherally inserted central and midline catheter being employed on a given patient, preventing unnecessary movement of the extremity, unnecessary or premature removal of an existing catheter line and ensuring proper treatment of the patient if the patient is transferred from one location to another. The method employs an identification bracelet having information related to the inserted catheter, including the type of catheter employed, its size, length and indwell length, as well as the insertion date thereof. Further provided is a notice of a restricted extremity, which prevents the catheter from being tugged or unnecessarily moved while inserted. The method ensures proper care for those receiving infused medications at home or requiring emergency medical treatment services.

The invention relates to a pace-making catheter, a magnetic patch attachment and a pace-making catheter kit. The pace-making catheter comprises a catheter body, a pace-making electrode and a first magnetic body. The pace-making electrode is secured to a distal end of the catheter body and exposed outside the catheter body. The first magnetic body is secured to the catheter body for attracting themagnetic patch attachment to fix the catheter body in place. The pace-making catheter of the invention is fixed by the in-vitro magnetic patch attachment, convenient and safe in operation, nondestructive to myocardium of a patient, and solves the problem that existing catheters need to be repeatedly placed, resulting in complicated operation and increased operation time.

The invention discloses a catheter device which comprises a catheter. An elastic metal guide wire is arranged in the catheter, one end of the elastic metal guide wire is bent, one end of the catheter is supported to be of a bent structure by one end of the elastic metal guide wire, the other port of the catheter is provided with a one-way valve, the other end of the elastic metal guide wire extends out of the catheter from the one-way valve, the other end of the elastic metal guide wire is fixedly connected with an outer cap, and one end of the outer cap is inserted into the one-way valve. The elastic metal guide wire and the one-way valve are added on the basis of an existing catheter, and the elastic metal guide wire makes the catheter have a certain curvature and hardness and smoothly arranged into the bladder on the premise that the urethra is not hurt. In addition, the one-way valve can prevent urine from being automatically drained out of the catheter after the guide wire is pulled out or a drainage bag is not connected, and pollution is avoided.

The invention provides a catheter feeding device of a puncture needle assembling machine, and belongs to the technical field of medical equipment. According to the device, the problem of poor stability of existing catheter cutting is solved. The catheter feeding device of the puncture needle assembling machine comprises a catheter unwinding mechanism, a catheter taking mechanism and a catheter feeding mechanism, wherein the catheter taking mechanism comprises a base, a positioning assembly, a positioning clamping finger and a cutter assembly, the catheter unwinding mechanism comprises an unwinding support, the catheter feeding mechanism comprises a feeding clamping finger, the catheter taking mechanism further comprises a material taking clamping finger and a cutter buffering block which are arranged on the base in a sliding mode, the feeding clamping finger is located above the end, provided with the material taking clamping finger, of the base and is close to the cutter assembly, theopposite ends of the unwinding support and the base are provided with limiting rolling wheel assemblies, the two limiting rolling wheel assemblies are arranged at the same height and staggered, and the positioning assembly comprises a vertical plate and a catheter inlet guide block which is arranged on the vertical plate and is penetrated through by a catheter. According to the device, cutting stability and cutting precision of the catheter are improved.

The invention provides a fixing device for a hemodialysis internal jugular central venous catheter. The fixing device is characterized in that neck fixing bands are arranged at an intersection (Y-shaped intersection) of a main catheter of the hemodialysis internal jugular central venous catheter and branch catheters at artery and vein ends, tail ends of two sides of each neck fixing bands can be fixedly combined with each other after encircling the neck of a human body by a circle, and a fixing sheet is further arranged at a catheter skin access in the main catheter according to different ranges of cathetering depths of the human body. The fixing device has the advantages that the hemodialysis internal jugular central venous catheter can be fixed to the neck skin access by the aid of the fixing sheet, the neck fixing bands are combined with the fixing sheet, accordingly, effects of fixing the hemodialysis internal jugular central venous catheter can be jointly realized, body suffering and psychological stress due to discharge and falling of suture lines and forced repeated suturing can be prevented, and problems of accidental falling of existing catheters due to repeated suturing, bleeding, infection, continuous expansion of wound at existing catheter skin inlets and tissue proliferation due to unstable fixing of the existing catheters and the like can be solved.

The invention relates to the technical field of medical instruments, in particular to a catheter fixing device for gastrointestinal surgery. The purpose is to solve the problems of unreasonable movingmanner, limited application range and the like caused by the factors of low bidirectional moving efficiency, the failure of achieving normal direction moving, the failure of the variation of the diameter of a fixing ring and the like of an existing catheter fixing device for gastrointestinal surgery. The fixing device comprises a side enclosure fixing mechanism, a bottom bearing plate, a circumferential displacement platform, a normal direction rotary mechanism and a top fixing supporting frame. The bottom loading plate is movably connected with the bottom of the side enclosure positioning mechanism, the circumferential displacement platform is movably arranged above the bottom bearing plate, the normal direction rotary mechanism is fixedly connected with the upper surface of the circumferential displacement platform, and the top fixing supporting frame is movably connected with the top of the normal direction rotary mechanism. The fixing device has the advantages of multi-directionalpositioning, normal direction degree-of-freedom and adjustable fixing diameter.

The invention discloses a high-flow anti-bending guide catheter structure. The high-flow anti-bending guide catheter structure comprises a main catheter body, which is of a double-layer structure and is composed of an inner layer and an outer layer; the tail end of the inner layer is provided with a round head integrally formed with the inner layer, and one side of the tail end of the inner layer, which is close to the round head, is provided with a plurality of liquid outlets; a fixing flat filament is fixed inside the main catheter body; the end portion of the adhering surface of the outer layer and the inner layer is provided with a tip transition unit; the end portion of the main catheter body is connected with a pressing type split locking connector. The high-flow anti-bending guide catheter structure is simple in implementing process, changes the complex process of punching catheters in the prior art and solves the problems of low strength, cavity blocking and the like; the inner flat filament can play a key role of reinforcement when the catheter is pushed, pulled, turned and guided during operation as well as meet the requirements on radial flexibility during operation. Therefore, the high-flow anti-bending guide catheter structure solves the problem that existing catheters are easy to block, break and bend, reduces the risk during catheter puncture and meanwhile greatly reduces the production cost.

The invention relates to a novel tracheal catheter for clinically establishing an artificial airway. The head end of an existing catheter and an air bag section catheter are basically located on the same straight line, and the included angle formed by the head end of the catheter and the glottis plane is small or even parallel during intubation. After an epiglottis is exposed by using a laryngoscope during clinical intubation, the head end of a tracheal catheter is positioned near the glottis and cannot enter a trachea through the glottis, so that intubation is difficult, intubation injury is easily caused, and even serious hypoxia and death are caused. The catheter is connected with the catheter head end at an angle, the minimum included angle between the inner diameter center line of the catheter head end and the inner diameter center line of the catheter is an angle A, and the angle range of the angle A is 5-30 degrees. The problem that it is difficult to insert the catheter head end into the glottis and send the catheter head end into the trachea is solved, the angle between the catheter head end and the glottis plane is increased during intubation, the triangular guide strip and the catheter head end diagonal plane can be directly sent into the glottis, or the catheter head end diagonal plane is guided by the triangular guide strip to enter the glottis; the tracheal catheter is continuously pushed, and the catheter head end forms an angle at two positions, so that the catheter head end easily enters the trachea through the glottis. The novel tracheal catheter is simple and feasible in intubation operation, high in success rate and small in airway injury.

The invention relates to the field of medical supplies, in particular to a visual urethral catheterization device and a using method thereof. The visual urethral catheterization device comprises a catheter body, a urethral catheterization channel is formed in the catheter body, and a lighting part is arranged at one end of the urethral catheterization channel; a display device is further arrangedin the urethral catheterization channel, an imaging device comprises a visual probe, and the lighting part can provide illumination for the visual probe; the visual probe is connected with a monitor through the imaging device, and the visual probe is used for collecting information of the position where the visual probe is located and transmitting the information to the monitor. The imaging devicecan transmit the information to the monitor after the information of the position where the probe is located is collected, the probe can extend into the human body, a relatively clear image can be provided for a doctor, the treatment difficulty of the doctor on a patient is increased, and the problem that the visual function of an existing catheter is not obvious is solved.

The invention discloses a catheter fixing clip, and relates to the technical field of medical nursing devices. The catheter fixing clip comprises a catheter fixing band with a clip body arranged at one end, the catheter fixing band is in a long strip shape, and a corresponding connecting part is arranged on a band body. Compared with the prior art, the catheter fixing clip can solve the problems that an existing catheter is likely to move and fall off, and normal movement of a patient is influenced.