114 results about "Balloon dilations" patented technology

The visual balloon type urethral dilation device comprises a urethral endoscope and a balloon dilator arranged in the urethral endoscope in a penetrating mode, and the urethral endoscope and the balloon dilator are matched with the urethra of the human body. The observation field of view of the urethra endoscope covers the dilation balloon of the balloon dilator, and visual dilation of the dilation balloon is achieved. The balloon dilator is provided with an independently-controlled fixing balloon, the fixing balloon and a balloon-shaped cavity in the urethra endoscope probe form a detachable fixing structure, the balloon dilator can penetrate through a middle shaft of the probe to move axially when fixing is removed, and the guiding function of the probe is achieved. The balloon dilator can be used in a disposable mode, and cross infection is prevented. And the probe is provided with a panoramic camera and a light supplementing lamp which are symmetrical, so that the visualization precision is improved. The urethra dilatation operation accuracy, safety and diagnosis and treatment efficiency are greatly improved from the aspects of high visualization, dilatation precision adjustment and the like.

The utility model relates to the technical field of dilation catheters, and discloses a double-cavity tube of a PTA (pure terephthalic acid) balloon dilation catheter, which comprises a handle component, a double-cavity tube fitting is fixedly connected to the side end of the handle component, a guide seat is fixedly connected to the bottom end of the double-cavity tube fitting, an insertion opening is formed in the bottom end of the guide seat, and a through hole is formed in the insertion opening. According to the utility model, through the cooperative arrangement of the guide seat, the protection assembly, the extension plate and other structures, if a medical worker accidentally touches the pull plate in the process of operating the double-cavity pipe fitting, the spring is driven to be stretched, and the spring is immediately shrunk after being stretched, so that the safety of the double-cavity pipe fitting is ensured, and the safety of the double-cavity pipe fitting is ensured. The protection plate is still in a closed state, so that most of the protection plate is not easy to open due to accidental touch of medical staff, and pollutants are not easy to enter a guide wire cavity.

The utility model discloses a ring pharynx muscle balloon dilatation stimulation training tube which comprises a catheter body, three conveying tube cavities and three air bag bodies are arranged on the catheter body, the conveying tube cavities comprise the first conveying tube cavity, the second conveying tube cavity and the third conveying tube cavity, and the air bag bodies comprise the fixed air bag body, the dilatation air bag body and the annular air bag body. The fixed air bag body is located in front of the expansion air bag body, the annular air bag body is arranged on the surface of the expansion air bag body in a matched and surrounding mode, the far end of the first conveying pipe cavity is communicated with the fixed air bag body, and the near end is connected with an inflation and deflation connector. According to the utility model, not only can the air bag body be used for accurately carrying out expansion training on the cyclopharynx muscle, but also cold water flow can be injected through the annular air bag body to carry out cold stimulation training on the cyclopharynx muscle, so that the stimulation training effect of the treatment tube is improved, and the stimulation expansion training of a patient is facilitated.

The application relates to the technical field of medical catheters, in particular to a balloon dilatation catheter convenient for expansion support, which comprises a supporting mechanism and an adjusting mechanism; the supporting mechanism comprises an injection tube, two sections of covering tubes are fixed outside the injection tube, an outer expansion balloon is arranged outside the injection tube, two ends of the outer expansion balloon are respectively installed with the two sections of covering tubes, a plurality of auxiliary supporting members are installed outside the injection tube, a guide wire is fixed at one end of the injection tube, the guide wire is fixed and penetrates through the covering tubes, a main medium hole and a plurality of auxiliary medium holes are arranged on the injection tube, the main medium hole is connected with the inside of the outer expansion balloon, the plurality of auxiliary medium holes are respectively connected with the insides of the plurality of auxiliary supporting members, and a medicine storage member is installed outside the outer expansion balloon. Compared with the prior art, the application can support the thrombus position in a directional manner, the thrombus can be smoothly medicated, and the treatment effect on the thrombus is improved.

The utility model relates to an intracranial laser balloon dilatation catheter, which comprises a catheter, a laser balloon fixed on the catheter and communicated with the catheter, and a catheter seat fixed and communicated with one end, far away from the laser balloon, of the catheter, a positioning claw is arranged on one side, close to the catheter seat, of the laser balloon, and the positioning claw is fixed on the catheter. The positioning claws are in a funnel shape formed by annularly arranging a plurality of positioning wires, and the ends, with the large opening diameter, of the positioning claws face the laser balloon; the utility model has the advantages that when the laser is continuously irradiated, the laser can be ensured to irradiate in the middle and the blood circulation can be ensured.

The invention relates to a guide-wire-free integrated balloon catheter system, which comprises a balloon dilatation mechanism, a balloon catheter and a balloon catheter, the balloon dilatation mechanism comprises a first balloon, a second balloon and a balloon pushing rod, and the first balloon and the balloon pushing rod are arranged in a penetrating manner; the first balloon is used for blocking the aorta I region; the second balloon and the balloon pushing rod are arranged in a penetrating manner; the second balloon is used for blocking the aorta III region; a first outlet and a second outlet are respectively formed in the balloon pushing rod between the first balloon and the second balloon and in the other side of the second balloon, and a blood inlet is further formed in the other side of the first balloon; the blood inlet is communicated with the first outlet and the second outlet through a pipeline and is closed or opened through a valve, and the pipeline is located in the balloon pushing rod. The balloon is used for improving the hemostasis and plugging effects, meanwhile, avascular necrosis of internal organs and limbs below the plugging position can be prevented, the balloon can better play the hemostasis, plugging and other roles, and the hemostasis time is prolonged.

The utility model discloses a balloon dilatation pressure pump for interventional therapy intraoperative nursing, which comprises a balloon dilatation pressure pump main body, the balloon dilatation pressure pump main body is provided with a fixing splint in a matching way, the fixing splint is arranged in a rectangular way, and the front side and the rear side of the fixing splint are respectively provided with an adjusting device and a pipeline fixing device. The fixing clamping plate is additionally arranged on one side of the disposable balloon dilatation pressure pump, and the disposable balloon dilatation pressure pump is fixed through the butt joint rod and the binding belt on the adjusting device, so that the disposable balloon dilatation pressure pump is convenient to assemble and disassemble, use of medical staff under various conditions is met, and the disposable balloon dilatation pressure pump is convenient to use. Meanwhile, the extrusion fixing clamp arranged on the rear side can fix the balloon dilatation pressure pump on a medical pipeline to assist in fixing the position of the balloon dilatation pressure pump.

The utility model is suitable for the technical field of abdominal surgery, and provides an extraperitoneal cavity dilator which comprises an operation end, the bottom of the operation end is in threaded connection with an inflation pipeline, a check valve is installed on the inner wall of the inflation pipeline, and a balloon dilator is arranged at the bottom of the inflation pipeline. The inflation pipeline is of a hollow cylinder structure and comprises a bent section used for bending, a reinforcing layer is arranged at the bottom of the bent section, and the check valve is arranged at the tail end of the reinforcing layer in the same direction. The check valve comprises an air cavity, the air cavity is formed in the middle section of the check valve, an air inlet is formed in one end of the air cavity, an air outlet is formed in the other end of the air cavity, the air inlet is formed in the end close to the bent section, and a check module is installed in the air cavity. According to the device, one-way flowing of gas is ensured through the non-return module, backflow and leakage are avoided, deflation can be achieved through the deflation rod, and operation stability and high adaptability are achieved.

The present invention discloses a shock wave balloon dilation catheter comprising a balloon and a dilation catheter. The balloon includes a blood flow passage on its outer circumference and / or interior, extending axially and penetrating through the outer circumference and / or center. A shock wave generator is arranged within the balloon chamber, where conductive fluid can be introduced. The distal end of the dilation catheter passes through or into the balloon and is sealedly connected to the balloon. A fluid passage in the catheter communicates with the balloon chamber, and the shock wave generator is fixed to the portion of the catheter within the balloon. The dilation catheter is provided with a guide wire lumen. The present invention further discloses a shock wave balloon dilation catheter for tricuspid valve openings, which designed to avoid blood flow blockage and reduce the hemodynamic impact during the procedure, enhancing safety and treatment effectiveness.

The devices and methods described herein are for use with conventional catheters and guidewires. Access can be maintained with the catheter and / or guidewire and the device can be backloaded onto the guidewire and into the catheter to be advanced to a target. The devices can include a tubular shaft having a lumen for receiving a guidewire; at least one aperture for receiving a feature of an implant positioned on the tubular shaft; and a plurality of relief cuts. The outer diameter of the tubular shaft is sized relative to an inner diameter of a catheter for receiving the tubular shaft, such that a sheath is not positionable in a lumen of the catheter when the tubular shaft is in the lumen of the catheter. The tubular shaft can be axially displaced in the lumen of the catheter to advance or retract the implant positioned on the tubular shaft.

A balloon dilation catheter includes a substantially rigid inner guide member and a movable shaft coupled to a balloon that is slidably mounted on the substantially rigid inner guide member. To treat a sinus cavity of a subject using the balloon dilation the substantially rigid inner guide member is advanced into a drainage pathway of the sinus (e.g., frontal recess or maxillary sinus) of the subject via a nasal passageway. The shaft and balloon are advanced in a distal direction over the substantially rigid inner guide member to place the balloon in the drainage pathway. The balloon is inflated to expand or otherwise remodel the drainage pathway.

The invention relates to the technical field of medical catheters, and particularly discloses a telescopic microneedle medicine balloon dilatation catheter which comprises a catheter assembly and a balloon body located at the far end of the catheter assembly and further comprises a plurality of microneedle puncture units located outside the balloon body. The microneedle puncture unit comprises a containing sleeve, a microneedle assembly and an elastic driving part, the top end and the bottom end of the containing sleeve are open, a plugging cover is arranged at the top end of the containing sleeve, a puncture seam is formed in the middle of the plugging cover, the microneedle assembly is slidably arranged in the containing sleeve in a sleeved mode, and the elastic driving part is connected to the opening in the bottom end of the containing sleeve. When the balloon body expands and is extruded by the outside, the elastic driving part is extruded to enable the elastic driving part to generate elastic deformation, and then the puncture end of the microneedle assembly is driven to penetrate through the puncture seam and be ejected and punctured out. And the microneedle easily breaks through the hard calcified shell and enters the hard calcified shell, so that the effective establishment of a drug delivery channel is ensured.

The present application provides a kind of vascular stenosis treatment device, it includes treatment component, the treatment component includes: balloon, the wall of the balloon has a plurality of first holes for liquid to pass, the balloon has unexpanded state and expanded state;Cover, the cover is covered outside the balloon and expands along with the balloon expansion, the cover has a plurality of second holes, when the balloon is in the expanded state, the aperture of the first hole is less than the aperture of the second hole.The vascular stenosis treatment device of the present application can realize accurate positioning, and the cover has a limiting effect on the liquid, so that the drug can be more uniformly and effectively act on the required position of the blood vessel wall, thereby improving the utilization rate of the drug, reducing the incidence of vascular restenosis, and improving the treatment effect.

Methods and apparatuses for insertion and / or pressurization of a balloon catheter for balloon dilation of anatomical passageways in the head of a person such as the Eustachian tube and Sinus passageways. The insertion devices comprise a balloon catheter guiding tube for receiving and guiding the balloon catheter, and a device body rigidly attached to a proximal end of the balloon catheter guiding tube. The pressurization devices comprise a syringe body with a syringe barrel, a proximal thruster guide section, external hand or finger engagement geometries, a plunger with a distal plunger head and a plunger rod, and a thruster having a proximal end with a finger or hand engagement portion.

This invention provides a quick-connect balloon dilation catheter and a method for preparing the balloon dilation catheter. The quick-connect balloon dilation catheter includes a catheter seat, an outer tube connected to the catheter seat, and a balloon connected to the distal end of the outer tube. The outer tube has a metal tube body extending from the proximal end to the distal end, the metal tube body having a non-cutting segment at the proximal end and a cutting segment connected to the distal end of the non-cutting segment. The outer tube also has a polymer inner liner covering the inside of the cutting segment and a polymer sheath covering the outside of the cutting segment, such that the outer tube is integrally formed as a composite tube segment with a metal tube segment at the proximal end and a composite tube segment connected to the distal end of the metal tube segment, the composite tube segment having a quick-connect port penetrating both the inside and outside. This design improves the catheter's delivery and positioning accuracy.

The invention discloses a medical balloon dilator, which relates to the technical field of medical treatment, and comprises an inflating tube, a water filling piece is mounted at one end of the inflating tube, an extension piece is mounted at one end, far away from the water filling piece, of the inflating tube, an air bag is mounted on the annular surface of the extension piece, an extrusion piece is mounted at one end, facing the inside of the inflating tube, of the extension piece, and the extrusion piece is connected with the extension piece. A plurality of abutting blocks are installed in the inflation pipe and make contact with the extrusion piece. An air bag is installed on the annular surface of an extension rod, the extension rod and the air bag are pushed out of an inflation tube through a moving structure during water injection, damage caused when the air bag moves in the intestinal tract of a patient is avoided, meanwhile, after water flow is injected into the inflation tube, a moving plate is pushed to move, and after an abutting structure in the moving plate makes contact with an abutting block, the moving plate is pushed to move. The water flow enters the air bag to expand the air bag, so that the length of the inflation tube is controlled, and the situation that the inflation shape of the air bag is changed due to lesion of an examination area of a patient is avoided.

The application discloses an intracranial laser balloon dilatation catheter and an operation method thereof. The intracranial laser balloon dilatation catheter comprises a tube body, the tube body comprises an inner tube and an outer tube which are nested inside and outside, an elastic piece is welded at the distal end of the inner tube, the inner tube and the outer tube of the distal end tube body have a first radial gap, the inner tube and the outer tube of the proximal end tube body have a second radial gap, the first radial gap is smaller than the second radial gap, a balloon body, an optical fiber, a movable piece which is located in the radial gap of the inner tube and the outer tube and has a first position with at least a part located in the first radial gap and a second position with all located in the second radial gap, a control piece which controls the movable piece to switch from the first position to the second position, and a laser generating module which emits laser with a wavelength of 400-750 nm and a repair function. The intracranial laser balloon dilatation catheter can avoid intravascular restenosis, the flow rate is slow when the balloon body is inflated, the flow rate is fast when the fluid in the balloon body is released, and the safety and convenience of the operation are considered.

The application provides a blood vessel opening device. The device comprises a balloon and a thrombus-removing stent. The thrombus-removing stent is an expandable and contractible stent structure, and the peripheral wall of the thrombus-removing stent has a plurality of mesh holes. The balloon is coaxially arranged in the thrombus-removing stent. The balloon can drive the thrombus-removing stent to expand. The balloon can be radially contracted in the internal space of the thrombus-removing stent relative to the thrombus-removing stent. The thrombus-removing stent can be axially extended and retracted relative to the balloon. In the embodiment of the application, the balloon is coaxially arranged in the thrombus-removing stent. The hard blockage can be expanded through balloon expansion. At the same time, the thrombus-removing stent wrapped outside the balloon can be smoothly embedded in the hard blockage. Then, the blockage can be taken out of the body by retracting the balloon and the thrombus-removing stent. Therefore, the hard blockage in the blood vessel can be effectively removed, and the treatment effect is improved.

The application provides an intracranial balloon dilatation catheter, which comprises a tip head sleeve arranged outside a tip tube, the tip tube is welded and connected with a distal end of an inner tube and communicates with the inner tube; a balloon and an outer tube are sequentially arranged outside the inner tube from the distal end to the proximal end of the inner tube, the balloon and the outer tube communicate with each other, and a plurality of developing marks are arranged on the outer surface of the inner tube in the balloon; a quick exchange port is arranged near the proximal end of the inner tube; the proximal end of the outer tube is welded and connected with a push tube, a plurality of length mark rings with different ring widths are arranged on the push tube; a stress dispersion tube is welded and connected between the push tube and a catheter seat, and the catheter seat is used for inputting a filling medium to inflate the balloon. After the technical scheme is adopted, the narrowed blood vessel can be dilated by the balloon, the action part of the balloon and the catheter insertion length can be conveniently identified, the balloon or the balloon inner membrane composed of piezoelectric material is arranged, the blood vessel or nerve is provided with electric stimulation, and the treatment effect is further improved.

The utility model discloses an optical fiber balloon catheter which comprises the following components: a catheter which comprises an inner tube and an outer tube, and the inner tube passes through the inner part of the outer tube; the balloon is located on the periphery of the far end of the catheter and can expand in the radial direction relative to the catheter, and a vascular repair promoting coating is arranged on the outer surface of the balloon; the inner tube comprises a far-end inner tube section located in the balloon, and a groove is formed in the outer wall of the far-end inner tube section; the near end of the optical fiber is connected to the laser generator, and the far end of the optical fiber is provided with a light-emitting section extending into the balloon; and the light-emitting section is embedded in the groove. The groove is formed in the outer wall of the inner tube, and the optical fiber is embedded in the groove, so that light emitted by the optical fiber can be uniformly irradiated to the surface of the balloon, the vascular repair promoting coating is activated, crosslinking of protein in the vascular wall is triggered, a natural vascular stent is formed, and the expanded blood vessel is maintained. The space occupied by the optical fiber in the radial direction of the balloon is small, the overall outer diameter of the balloon before expansion can be reduced, and the trafficability of the balloon catheter is improved.

The invention discloses a coronary medicine balloon dilatation catheter, and belongs to the technical field of medical instruments. In order to solve the problems that an existing drug balloon is high in blood flow blocking risk, large in drug loss and uneven in drug distribution, the balloon dilatation catheter comprises a catheter body, a dilatation balloon, a drug delivery catheter, a drug storage bin, a driving connecting rod, a connecting ring and a guiding head. The dosing catheter protrudes out of the periphery of the dilatation balloon at intervals, the flexible side wall of the medicine storage bin communicates with the liquid injection cavity channel, and the driving connecting rod drives the dosing catheter to rotationally apply medicine through spiral transmission; the catheter body is provided with an independent blood flow cavity channel and a blood inlet, and a gap formed by the catheter body and the administration catheter forms a double-channel blood flow path. The invention realizes the synergy of vasodilatation, accurate and uniform administration and continuous blood perfusion, reduces drug loss and non-targeted deposition, reduces myocardial ischemia complications and postoperative restenosis risk, is simple and convenient to operate, and is suitable for various coronary heart disease treatment scenes.

The present invention relates to a balloon catheter and an ablation system. The balloon catheter includes a catheter body, a balloon, a temperature-sensing element and a restricting member. The balloon is disposed at a distal end of the catheter body. The temperature-sensing element includes a temperature-sensing module and a wire. The temperature-sensing module is disposed on the balloon or the catheter body, and part of the wire of the temperature-sensing element is arranged in a cavity of the catheter body so as to extend in an axial direction of the cavity of the catheter body. The restricting member is disposed within the cavity of the catheter body and configured to positionally restrict the wire of the temperature-sensing element within the cavity of the catheter body. According to the present invention, the restricting member restricts and protects the wire of the temperature-sensing element, thereby avoiding the risk of the wire being stretched and possibly broken during expansion or contraction of the balloon or during movement of the catheter. Moreover, the wire is avoided from hindering movement of the catheter body.

The utility model belongs to the technical field of double-cavity thrombus taking catheters, and particularly relates to a double-cavity thrombus taking catheter without hurting blood vessels during balloon dilatation, which comprises a catheter main body, a movable component is mounted on the outer side of the catheter main body, the movable component comprises an inflation tube, a rotating wheel is movably connected to the side surface of the inflation tube, and a semi-arc groove is formed in the side edge of the rotating wheel. A screw rod is in threaded connection with the interior of the rotating wheel, one end of the screw rod penetrates through the surface of the inflation pipe and extends into the inflation pipe, a movable block is fixedly connected to one end of the screw rod, a sealing ring is fixedly connected to the outer surface of the movable block, and the outer surface of the sealing ring is attached to the inner surface of the inflation pipe; the outer surface of the inflation pipe is fixedly connected with a fixing block, the other end of the screw is fixedly connected with a limiting rod, and the outer surface of the limiting rod is movably connected with the interior of the fixing block. The balloon dilatation device can accurately control the dilatation size of the balloon, avoids excessive dilatation of the balloon, protects blood vessels from being damaged, and is convenient to use.

This invention discloses a prostate balloon dilation catheter, comprising a catheter body; a first balloon disposed outside the catheter body; and a blunt scoring body disposed along the axial direction of the first balloon on its surface, protruding from the surface of the first balloon, the blunt scoring body being used to press against a target location; wherein, in the uninflated state of the first balloon, the blunt scoring body is located at the fold position of the first balloon, the fold being a circumferential depression of the first balloon. This invention utilizes the blunt scoring body to press against the prostate tissue, creating stress concentration and thus assisting the anterior balloon in dilating the prostate at the target location. Compared to existing technologies, this effectively avoids the risk of scratches to the balloon and urethral wall.

The application relates to a thrombus extraction device, comprising: a suction tube for sucking thrombus; the plugging balloon is arranged outside the suction tube; the extension pipe is connected into the suction pipe in a sliding mode, and the moving direction of the extension pipe is the same as the length direction of the suction pipe; the dragging balloon is arranged outside the extension tube, the dragging balloon is arranged in the length direction of the extension tube, the dragging balloon comprises a collecting section, the side, facing the suction tube, of the collecting section is provided with a stress face used for abutting against thrombus, and when the dragging balloon expands, the collecting section is attached to a target blood vessel, and when the dragging balloon expands, the collecting section abuts against the thrombus; the blocking balloon expands and is attached to the blood vessel wall in a self-adaptive mode, blood flowing from the near end to the far end is temporarily and completely blocked, a static operation environment free of blood flow flushing is created for subsequent steps, then the dragging balloon expands, the diameter of the collecting section of the dragging balloon is matched with or slightly smaller than that of a target blood vessel, and therefore the blood vessel blocking effect is achieved. And the stress surface of the collection section clings to the thrombus and carries out negative pressure suction towards one side of the far end.

A flow-reducing implant for reducing a rate of blood flow through a blood vessel is expandable in the blood vessel. The implant may include a balloon-expandable longitudinal portion and a shape-memory longitudinal portion forming a tapered shape at distal and / or proximal ends of the implant. An embolic device may be used to surround a throat of the implant to facilitate thrombus formation. A longitudinal end of the implant may be inhibited from expanding to maintain a tapered shape and expansion of the implant.

The invention provides a conical gradually-changing high-compliance balloon, and relates to the field of interventional vascular surgery. The conical gradually-changing high-compliance balloon comprises a balloon body, one end of the balloon body is communicated with a tube head, the other end of the balloon body is communicated with a sleeve, a conical positioning head is installed at one end of the sleeve in a sliding mode, in the initial state, the tube head vacuumizes the balloon body, a plurality of folding areas distributed in the circumferential direction are formed in the balloon body, and the folding gaps are used for containing chemical agents. According to the conical gradually-changing high-compliance balloon, in the expansion process, when the folding gap and the balloon body are unfolded to achieve synchronous drug release and the folding area is unfolded, chemical agents originally sealed in the gap are gradually extruded out along with separation of the folding face, the release path is consistent with the expansion direction of the balloon, and the balloon expands to push the agents to directly make contact with the lesion blood vessel wall, so that the drug release effect is improved. The problems that a traditional balloon drug is prone to falling off in advance after being coated, and cavity filling and releasing are lagged are solved.

The invention relates to the technical field of dilatation catheters, in particular to a perfusion balloon dilatation catheter system which comprises a perfusion balloon dilatation catheter assembly which comprises a catheter seat, a destressing tube, an outer tube, a balloon and a head end tube which are sequentially connected. The catheter front-end blood vessel image acquisition module is used for determining whether the balloon catheter is in a blood vessel true cavity or not; the supporting wire front end image acquisition module is used for acquiring a supporting wire form image of the front end of the supporting wire under X-ray perspective and a corresponding blood vessel form image; the supporting wire touch obtaining module is used for obtaining stress changes in the supporting wire pushing process, the supporting wire form image and the corresponding blood vessel form image so as to determine whether the supporting force of the supporting wire is qualified or not, and the posture of the supporting wire is adjusted in the state that the supporting force of the supporting wire is insufficient. The perfusion balloon dilatation catheter system has the balloon dilatation function and the radiography function at the same time, and by means of the image and data processing technology, the intelligent level of medical instruments is improved.

The application discloses an intracranial laser balloon dilatation catheter, which comprises a tube body, a balloon body and a laser generating module. The tube body is provided with a fluid channel and an optical fiber channel. The balloon body is located at the outer periphery of the distal end of the tube body and is in communication with the fluid channel. The optical fiber is arranged in the optical fiber channel and has a light-emitting section extending to the position of the balloon body. The elastic member is arranged at the distal end of the inner tube. The diameter of the elastic member gradually increases from the distal end to the proximal end of the elastic member. The laser generating module is connected to the proximal end of the optical fiber. The laser generating module emits laser with a repairing function. The intracranial laser balloon dilatation catheter can avoid intravascular restenosis and ensure the safety and convenience of the operation.

The utility model relates to the field of medical instruments, in particular to a disposable indwelling drainage catheter bag which comprises a guide wire, a drainage catheter and a sterile application. The drainage tube penetrating into the body of the patient and the skin of the patient are relatively fixed through the arrangement of the sterile application, the drainage tube is fixed through the cooperation of the balloon and the sterile application, and compared with the prior art that an indwelling drainage catheter and the surrounding skin are fixed together through sutures, the pain of the patient is reduced; meanwhile, the situation that the wound infection risk is increased due to the fact that the wound area is increased through sutures is reduced.