CN209122369U - A kind of Cutting balloon and foley's tube - Google Patents

Abstract

The utility model provides a kind of Cutting balloon, comprising: balloon body；The cutting wire being arranged radially along the balloon body outer surface；The both ends of the cutting wire are individually fixed in the both ends of the balloon body；The cutting wire includes foldable structure.Compared with prior art, flexible cutting wire is arranged on the surface of Cutting balloon in the utility model, with preferable passability, and plaque can be cut in expansion, it is small to inner film injury, cutting wire is fixed on the surface of Cutting balloon simultaneously, or the problem of can slide along telescopic direction, avoid displacement or winding in cutting process；And the setting of foldable structure can not only provide the compensation of axial length in balloon expandable for cutting wire, can also increase the frictional force between balloon body and vascular wall, guarantee that sacculus will not shift.

Description

A kind of Cutting balloon and foley's tube

Technical field

The utility model belongs to balloons technique field more particularly to a kind of Cutting balloon and foley's tube.

Background technique

Percutaneous coronary intervention (pci) (PCI) is the important means of coronary heart disease revascularization treatment, and China receives every year The patients with coronary heart disease of PCI art is also increasing year by year, and the technology innovation of intervention apparatus and the raising of operation skill make more coronary diseases Patient therefrom benefits.The instrument for needing to use in PCI art includes guiding catheter, guiding wire, sacculus and bracket etc., and guiding is led Silk is that instrument is one of an important factor for determining the success or not of PCI art, sacculus is pair by the tracks of Coronary Artery Lesions in PCI art Coronary Artery Lesions expansion alleviates hemadostewnosis and guarantees the main tool that bracket is smoothly placed in.

The index for reflecting sacculus overall performance includes sacculus outer diameter, tracing property, pushability and compliance.Existed according to sacculus Effect difference in PCI art can be divided into predilation sacculus and rear dilating sacculus；Compliance difference according to sacculus is divided into compliance Sacculus, semi-compliant sacculus and non-compliance sacculus.Wherein with the increase of expansion pressure, its diameter obviously increases compliant balloon, It is not applied to PCI art；Non-compliance sacculus is unobvious with its diameter change of the increase of expansion pressure, has higher burst pressure, The predilation of the lesions such as rear expansion, harder lesion and in-stent restenosis after being chiefly used in stent endoprosthesis；Semi-compliant sacculus Predilation of the diameter with the increase trend of expansion pressure between compliance and non-compliance sacculus, for lesion.

Lesion before predilation is transfer gantry prepares, the spy for being conducive to the channel for opening transfer gantry and evaluating lesion Property.Predilation generally selects semi-compliant sacculus, and calcification lesion also can be used non-compliance sacculus, and the length of balloon of selection should be with Target lesion is suitable, and balloon diameter can be lower than reference vessel diameter, selects Balloon size according to sacculus/blood vessel ratio 1:1 principle, Generally using name pressure when expansion, gradually pressurize dilating sacculus, until sacculus there is no incisura or has arrived in x-ray image Specified burst pressure., push power strong and length short ball small for chronic total occlusion of coronary artery (CTO) Chang Xuanyong outer diameter Capsule carries out predilation, and the sacculus for then using major diameter instead again carries out abundant predilation.

The complete expansion for advantageously ensuring that bracket and adherent, reduction stent thrombosis and late luminal loss, reduction are expanded afterwards Target vessel/lesion revascularization rate.After expand and usually select non-compliant sacculus, the diameter Ying Yuzhi of the rear dilating sacculus of selection Frame, reference vessel diameter match, usually balloon diameter: 1.1~1.2:1 of blood vessel diameter ratio；The length of dilating sacculus afterwards It should be less than stent length, to guarantee that sacculus is located in bracket, avoid bracket edge interlayer.For in bracket > 30% remnants it is narrow Narrow (having " waist "), bracket are not expanded sufficiently, show the reference vessel of MSD < 90% diameter, bracket patch less than reference vessel diameter or IVUS Wall is bad should carry out after expand；In addition for Long lesion, calcification lesion, intrastent restenotic lesions, the overlapping of multiple brackets etc. It needs to expand after carrying out.

Medicine-coated balloon (DEB) is the novel sacculus occurred in recent years, i.e., will control the taxol and thunder of cell Proliferation The coatings drug such as pa mycin is placed in the gauffer of sacculus, after balloon expandable, drug can from sacculus rapid transport to vascular wall On.Coating drug only loses 6% before being sent into the expansion of coronary circulation system, and about 80% drug is quickly passed from sacculus after expansion It is handed to vascular wall.Bracket for eluting medicament (DES) passes through the reaction of the Drug inhibitions vasculitics such as the taxol of coating and rapamycin And endothelial cell proliferation, so as to reduce in-stent restenosis incidence, but released at its bracket bone with bone intersection drug Carrier polymer can be such that in-stent restenosis rate increases the stimulation of vascular wall after the lack of uniformity and drug put are exhausted.With DES It compares, DEB avoids the lack of uniformity of drug release due to no metallic framework, can make particular blood vessel wall region medicaments uniformity point Cloth, while can be reserved for the original anatomic form of blood vessel, it avoids when handling Small vessel and bifurcated lesions to blood flow patterns It influences；Double-layer scaffold is avoided when handling narrow in bracket and reduces vessel lumen, and DEB can be reduced without polymer carrier Chronic inflammatory reaction and advanced thrombus are formed.

But medicinal balloon is before expanding blood vessel, it is desirable to vessel lumen is sufficiently opened, but simple medicinal balloon without Method expands the blood vessel of calcification or fibrosis, and is possible to will cause the secondary injury of blood vessel.

Cutting balloon can expand lesion at lower pressures, for height calcification or the vessel inner lesion area of fibrosis Domain.Perhaps blade formation blade type Cutting balloon or the fixed cutting of selection balloon surface are pasted in surface to common Cutting balloon Silk such as double seal wire sacculus.

Blade type Cutting balloon is a kind of blade by conventional balloon and micro- surgery organically combined device.? When Cutting balloon is expanded, sharp blade exposure mitigates ring along the longitudinally slit atherosclerotic plaque and tube wall of vascular wall Shape pressure can farthest expand target lesion with the smallest strength and time.But blade type Cutting balloon is glutinous due to surface Blade is pasted, poor entirely through property and easy excessive cutting vessel inner membrance is caused.

Double seal wire sacculus such as safecut, minirail are that a steel wire is enclosed outside common sacculus, in balloon expandable When, this steel wire plays the dissection of similar " blade ", but has the characteristics that outer diameter is small, strong by lesion ability, is suitable for calcium Change lesion, in-stent restenosis (ISR) lesion etc., but its cutting effect cannot reach expected, and should be by balloon expandable It gradually pressurizes, such as often adds repressurization after 2 atmospheric pressure several seconds, lead to two steel wire windings together so that defence pressurization is too fast.

Application No. is the Chinese patents of CN201410182654.0 to disclose a kind of single seal wire Cutting balloon conduit, and cutting is led One end of silk is fixed on the distal end outer wall of sacculus, and the other end protrudes into above-mentioned limit conduit.It is single to cut seal wire after balloon expandable Lesion patch is cut into single seam, then is melted patch by the effect of Subsequent pharmacological, but for height calcification diseased region It has little effect.

Application No. is CN201310135128.4 Chinese patents to disclose the Cutting balloon that a kind of balloon surface is loaded with drug Dilating catheter, Cutting balloon dilating catheter include Cutting balloon catheter body and medication coat, wherein Cutting balloon catheter body Including sacculus, the surface of the sacculus is equipped with multiple blades, and in sacculus and the surface coated medicament coating of blade, but the sacculus It may result in that inner film injury is larger when expanding cutting, the passability of blade is poor, and the passability of total system is poor.

Application No. is the Chinese patents of CN201610266377.0 to disclose a kind of foley's tube, including sequentially connected needle Seat, proximal catheter, distal catheter, sacculus and catheter tip, foley's tube further include the intrinsic seal wire of two-way and lead all the way Silk, foley's tube acts as intrinsic seal wire all the way using guiding wire, reduces the quantity of intrinsic seal wire, the intrinsic seal wire of two-way with The guiding wire for playing guide function all the way, which cooperates, to be cut, but since guiding wire only fix by one end, so in the process can It is migrated, is fallen flat, the guiding wire and intrinsic seal wire of especially longer sacculus are easy position in cutting process It moves or winds.

Utility model content

In view of this, the technical problem to be solved by the present invention is to provide a kind of Cutting balloon and foley's tube, it should Cutting balloon passability is preferable and is not susceptible to be displaced in cutting process.

The utility model provides a kind of Cutting balloon, comprising:

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；

The both ends of the cutting wire are individually fixed in the both ends of the balloon body；

The cutting wire includes foldable structure.

The utility model additionally provides a kind of Cutting balloon, comprising:

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；The cutting wire includes foldable structure；The sacculus Limiting slot is provided on the outer surface of ontology one end, one end of the cutting wire is set in limiting slot, and the other end is fixed on institute State the other end of balloon body.

The utility model additionally provides a kind of Cutting balloon, comprising:

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；The cutting wire includes foldable structure；

It is provided with the first limiting slot on the outer surface of described balloon body one end, is provided with second on the outer surface of the other end Limiting slot；One end of the cutting wire is set in the first limiting slot, and the other end is set in the second limiting slot.

Preferably, the length of the cutting wire is more than length 1~100mm of the balloon body in contraction state.

Preferably, the number of the cutting wire is n, and n is the integer more than or equal to 2；Angle between the cutting wire is 360°/n。

Preferably, the cutting wire includes collapsible wave structure and/or coil type spring structure.

Preferably, the cross section of the coil type spring structure is one of round, triangle and rectangle or a variety of.

Preferably, the slope position of one or both ends is foldable structure when the cutting wire is along balloon body expansion state, Rest part is linear structure.

Preferably, the outer surface of the balloon body is additionally provided with medication coat.

The utility model additionally provides a kind of foley's tube, including set gradually tip tube, above-mentioned Cutting balloon with Conduit；

The tip tube is not connected to the Cutting balloon；The Cutting balloon is connected with the conduit；

Inner tube is provided in the Cutting balloon；One end of said inner tube is connected with tip tube；

When the conduit includes multi-lumen tube, the other end of said inner tube is connected with a channel of multi-lumen tube；

When the conduit is single lumen catheter, the other end of said inner tube is extended through in conduit；

Running through in the tip tube, inner tube and conduit has guiding wire.

The utility model provides a kind of Cutting balloon, comprising: balloon body；It is radially set along the balloon body outer surface The cutting wire set；The both ends of the cutting wire are individually fixed in the both ends of the balloon body；The cutting wire includes to fold knot Structure.Compared with prior art, flexible cutting wire is arranged on the surface of Cutting balloon in the utility model, has and preferably passes through Property, and plaque can be cut in expansion, it is small to inner film injury, while cutting wire is fixed on the surface of Cutting balloon, or The problem of being slided along telescopic direction, avoiding displacement or winding in cutting process；And the setting of foldable structure is not Only the compensation of axial length can be provided for cutting wire in balloon expandable, can also increase the friction between balloon body and vascular wall Power guarantees that sacculus will not shift.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that section provided by the utility model is round screw thread cutting wire；

Fig. 2 is the structural schematic diagram that section provided by the utility model is triangle helical cut silk；

Fig. 3 is that (wherein left figure is double cutting wires, right figure three to Cutting balloon cross-sectional view provided by the utility model Cutting wire)；

Fig. 4 is structural representation when foley's tube provided by the utility model is placed in unexpanded state at vascular lesion Figure；

Fig. 5 is placed in structural schematic diagram when sufficiently expanding at vascular lesion for foley's tube provided by the utility model；

Fig. 6 is the structural schematic diagram that foley's tube provided by the utility model is placed in after expanding at vascular lesion；

Fig. 7 is the structural schematic diagram of the foley's tube provided in the utility model embodiment 1；

Fig. 8 is the cross-sectional structure schematic diagram of conduit used in the utility model embodiment 1；

Fig. 9 is the structural schematic diagram of the foley's tube provided in the utility model embodiment 2.

Specific embodiment

Below in conjunction with the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear, complete Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts Every other embodiment, fall within the protection scope of the utility model.

The utility model provides a kind of Cutting balloon, comprising:

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；

The both ends of the cutting wire are individually fixed in the both ends of the balloon body；

The cutting wire includes foldable structure.

According to the utility model, the balloon body is preferably nylon balloons ontology or polyether block amide balloon body； The balloon body preferably uses nylon (PA) or polyether block amide (PEBAX) to squeeze out and single lumen catheter is made as balloon body original Material, the then hot blow molding on the balloon forming machine containing raised mold.

The outer surface of the balloon body has been disposed radially cutting wire；The cutting wire is preferably placed at balloon body not In folding wings when expansion state；The diameter of the cutting wire is preferably 0.1~0.035 inch；The number of the cutting wire is excellent Be selected as n, n is the integer more than or equal to 2, more preferably 2~8 integer, further preferably for 2~6 integer；Between the cutting wire Angle be preferably 360 °/n, along balloon body circumferentially shape be distributed；A plurality of cutting wire can rule when Cutting balloon is expanded Cutting plaque, it is small to inner film injury, at the same balloon body expansion after have certain supporting role, increase sacculus sheet The frictional force of body and vascular wall guarantees that sacculus does not shift；The length of the cutting wire changes with different size sacculus, this is practical Its preferred length is more than length 1~100mm of the balloon body in contraction state in novel；The material of the cutting wire is Material well known to those skilled in the art has no special limitation, can close for medical stainless steel, cochrome, NiTi Gold or the preferable metal or alloy of other biological compatibility, can also be preferable for biocompatibilities such as polyamide or polyethylene High molecular material.

The both ends of the balloon body are fixed at the both ends of the cutting wire；Other positions of cutting wire can be partially fixed on The outer surface of balloon body can also be not fixed, and have no special limitation；The method of the fixation is known to those skilled in the art Method, have no special limitation, preferably heated in the utility model, is viscous glutinous or be mechanically fixed.

Or the first limiting slot is provided on the outer surface of described balloon body one end, is provided on the outer surface of the other end Two limiting slots；One end of the cutting wire is set in the first limiting slot, and the other end is set in the second limiting slot, makes both ends only It can be moved along limiting slot.

Or limiting slot is provided on the outer surface of described balloon body one end, one end of the cutting wire is set to limit In slot, the other end is fixed on the other end of the balloon body；Cutting wire can be slided along limiting slot.

Balloon body surface is fixed in cutting wire one or both ends, or is set in limiting slot, can avoid cutting wire and exists The problem of displacement or winding for occurring when balloon expandable.

In the present invention, the cutting wire includes foldable structure, is cut when on the one hand may be provided in balloon expandable Silk provides axial length compensation, on the other hand can also increase the frictional force between sacculus and vascular wall, ensures that sacculus will not shift；Institute Stating foldable structure is foldable structure well known to those skilled in the art, has no special limitation, in the utility model preferably For collapsible wave structure and/or coil type spring structure；When foldable structure is collapsible wave structure, fold is formed, The width of fold is preferably 0.1~0.55mm；When foldable structure is coil type spring structure, the utility model is to screw type bullet The cross section of spring structure is not particularly limited, and can be any shape for being conducive to cutting, preferably circular, triangle and square One of shape is a variety of；The side length of the triangular-section is preferably 0.1~0.55mm, in fact it is highly preferred that is 0.1~0.5mm； The diameter of the circular cross-section is preferably 0.2~0.5mm；The side length of the rectangular section is preferably 0.2~0.5mm；The spiral shell When the cross section of rotation type spring structure is triangle and rectangle, the radius of helical structure rounded corner is preferably 0.01 each independently ~0.05mm；The cutting wire can generally foldable structure, can also partially be foldable structure, have no special limitation, this is practical The slope position of one or both ends when preferably generally foldable structure or cutting wire are along balloon body expansion state in novel It is linear structure with part for foldable structure；The length of the foldable structure of the cutting wire is preferably 5~300mm.Referring to figure 1, Fig. 2 and Fig. 3, Fig. 1 are the structural schematic diagram that section is round screw thread cutting wire；Fig. 2 is that section is triangle helical cut silk Structural schematic diagram；Fig. 3 is Cutting balloon cross-sectional view provided by the utility model, and wherein left figure is double cutting wires, right Figure is three cutting wires, and stain is cutting wire section, and black annulus is interior tube section.

In balloon body Plenum Process, the foldable structure setting of cutting wire can make cutting wire when balloon body is expanded Axial elongation occurs, deform balloon body will not because of being stretched in cutting wire deformation；When balloon body restores to the original state Afterwards, the foldable structure portion retracts of cutting wire allow cutting wire to become straight line and are covered in balloon body surface, facilitate entirety It withdraws from external.

According to the utility model, the outer surface of the balloon body is preferably additionally provided with medication coat, at this time Cutting balloon Both plaque, which can have been cut, to be transferred to blood vessel surface for the drug of balloon surface, effectively inhibit the endangium of damage Transition hyperplasia.

Flexible cutting wire is arranged on the surface of Cutting balloon in the utility model, has preferable passability, and expanding When can cut plaque, it is small to inner film injury, while cutting wire is fixed on the surface of Cutting balloon, or can be along flexible side To sliding, the problem of avoiding displacement or winding in cutting process；And the setting of foldable structure can not only be in sacculus The compensation of axial length is provided for cutting wire when expansion, can also increase the frictional force between balloon body and vascular wall, guarantees sacculus It will not shift.

The utility model additionally provides a kind of foley's tube, including the tip tube, Cutting balloon and conduit set gradually；Institute Tip tube is stated not to be connected to the Cutting balloon；The Cutting balloon is connected with the conduit；Setting in the Cutting balloon There is inner tube；One end of said inner tube is connected with tip tube；When the conduit includes multi-lumen tube, the other end of said inner tube with One channel of multi-lumen tube is connected；When the conduit is single lumen catheter, the other end of said inner tube is extended through in conduit； Running through in the tip tube, inner tube and conduit has guiding wire.

Guiding wire is penetrated by tip tube, through the inner tube in Cutting balloon, penetrates conduit after reaching the proximal end of Cutting balloon； Tip tube is tip tube well known to those skilled in the art, has no special limitation, is preferably internal diameter in the utility model Not less than 0.3mm, its more preferable internal diameter can be led by the guiding of 0.014 inch, 0.018 inch and 0.035 inch of three kinds of specification Silk passes through；Said inner tube is inner tube well known to those skilled in the art, has no special limitation, in the utility model preferably Be not less than 0.3mm for internal diameter, its more preferable internal diameter can by 0.014 inch, 0.018 inch with 0.035 inch of three kinds of specification Guiding wire passes through；Said inner tube connect to form balloon cavity seal point with Cutting balloon with one end that tip tube is connected to；In described The both ends of pipe are preferably provided with developing apparatus, and the more preferably inner tube position opposite in Cutting balloon expansion state slope highest point is set It is equipped with developing apparatus；The developing apparatus is developing apparatus well known to those skilled in the art, has no special limitation, this It is preferably thin-walled annular body made of the metal and plastics of platinum alloy or other X-ray opaque materials in utility model；Development dress Set under X-ray as it can be seen that can identify during surgery sacculus cutting working region position, convenient for operator it is smoothly that sacculus is defeated It send to lesion vessels region.The conduit is conduit well known to those skilled in the art, has no special limitation, can be Multi-lumen tube, single lumen catheter or multi-lumen tube and single lumen catheter are formed by connecting；When the conduit is single lumen catheter, the conduit and cutting ball Capsule is connected, and said inner tube is preferably placed at the intracavitary of conduit, and said inner tube and conduit form coaxial arrangement or multi-cavity configuration, Guiding wire is in inner tube；When its be multi-lumen tube when, a channel preferably wherein is connected with inner tube, other channels with cut Sacculus is cut to be connected；The channel being connected with inner tube passes through for guiding wire, and internal diameter is preferably not less than 0.3mm, more It is preferred that its internal diameter can be passed through by the guiding wire of 0.014 inch, 0.018 inch and 0.035 inch of three kinds of specification.The cutting Sacculus is same as above, and details are not described herein；The material of the conduit is preferably polyether block amide (PEBAX).

According to the utility model, it can also be rapid-exchange version ball that the foley's tube, which can be whole crossover foley's tube, Ductus bursae.

When the foley's tube is whole crossover sacculus, the conduit is connected with Y type far from one end of Cutting balloon Connector, the Y connector include guiding wire outlet and the full mouth of sacculus；The Y type connector is constituted with tubes fit Two channels to inflated and discouraged sacculus air flue and are directed to the perforative multifunctional channel of seal wire；When conduit is single When lumen, the sacculus of Y type connector fills mouth and is connected through conduit with Cutting balloon, forms sacculus air flue, and walking has guiding to lead The inner tube of silk is connected with guiding wire outlet, forms multifunctional channel；When conduit is multi-lumen tube, walking has guiding wire Channel is connected with guiding wire outlet, forms multifunctional channel, and sacculus fills mouth and is connected through other channels with cutting balloon capsule It is logical to form sacculus air flue.Multifunctional channel for guiding wire in addition to passing through, it may also be used for injecting heparin, contrast agent etc..

When the foley's tube is rapid-exchange version foley's tube, it is provided on the conduit of the balloon catheter proximal end fast Fast exchange guidewire mouth, and the conduit fills mouth with sacculus and is connected, the sacculus fills mouth and the fast exchange guidewire port It is not connected to；The proximal end of the fast exchange guidewire port and foley's tube i.e. with sacculus fill the distance between mouth be preferably 10~ 1000mm；When the conduit is single lumen catheter, walking has the inner tube of guiding wire to form coaxial arrangement or multi-cavity in conduit Configuration, and said inner tube is connected with setting in supravasal fast exchange guidewire port；When conduit is multi-lumen tube, walking is led The channel of guide wire is connected with the fast exchange guidewire port.The sacculus fills mouth and is connected with external stamping device.

Referring to fig. 4, Fig. 5 and Fig. 6, Fig. 4 are placed in unexpanded at vascular lesion for foley's tube provided by the utility model Structural schematic diagram when state；Fig. 5 is that foley's tube provided by the utility model is placed in when sufficiently expanding at vascular lesion Structural schematic diagram, wherein 1 is tip tube, 2 be inner tube, and 3 be balloon body, and 4 be guiding wire, and 5 be cutting wire, and 6 be conduit, 7 For developing apparatus；Fig. 6 is the structural schematic diagram that foley's tube provided by the utility model is placed in after expanding at vascular lesion.

Foley's tube provided by the utility model is percutaneously intracavitary to be moved at vascular lesion along seal wire, is in unexpanded state When, cutting wire is uniformly distributed in the folding wings of balloon body periphery, and when pressure is filled to balloon interior, balloon body is pressed by inside Power effect expands into column, and cutting wire becomes fusiform with the expansion of balloon body, and cutting wire connects with plaque at lesion vessels Touching and cutting tears plaque, after Filled Balloon is multiple repeatedly, after plaque is sufficiently cut, and negative-pressure ward ball Capsule makes balloon body revert to original state, and cutting wire is covered in balloon body with the disappearance of the balloon dilatation pressure shape that is in line Surface.

In order to further illustrate the utility model, with reference to embodiments to a kind of Cutting balloon provided by the utility model And foley's tube is described in detail.

Reagent used in following embodiment is commercially available.

Embodiment 1

There is provided its schematic diagram of foley's tube as shown with 7, wherein 1 is tip tube, 2 be inner tube, and 3 be balloon body, and 4 be guiding Seal wire, 5 be cutting wire, and 6 be conduit, and 7 be developing ring, and 8 be Y type connector, and 9 fill mouth for sacculus, and 10 export for guiding wire.

As shown in fig. 7, sacculus 3, by the modes such as laser welding connecting conduit 6, conduit 6 is that polyether block acyl presses (PEBAX) The double lumen tube of material, cross-sectional structure schematic diagram as shown in figure 8, its first passage 11 be circle, pass through for guiding wire, It is connected with said inner tube 2 and internal diameter is not less than 0.30mm, its further preferred internal diameter is at least for 0.014 inch, 0.018 English Very little, 0.035 inch of three kinds of specification guiding wire 4 passes through.Circumferentially shape is uniformly distributed 3 outside cutting wire 5 of balloon body, double to cut Cutting wire angle is 180 degree, three cutting wire angles are 120 degree, and so on, wherein cutting wire compared with balloon body 3 slightly longer 1~ 100mm.The developing ring 7 is thin-walled annular body made of two platinumiridios, is individually fixed in and is set in balloon body 3 The both ends end to end of inner tube 2, developing ring is under X-ray as it can be seen that can identify the position of 5 working region of cutting wire during surgery, just Sacculus is smoothly delivered to lesion vessels region in operator.

Also, as shown in fig. 7, the free end of the conduit connects Y type connector 8, the Y type connector 8 is matched with conduit 6 It closes and is formed for inflated and discouraged sacculus air flue and the perforative multifunctional channel of seal wire 4 can be directed to, that is, the ball Capsule air flue is that the second channel of conduit 6 and a combination of channels of Y type connector 8 form.The multifunctional channel is conduit 6 Another channel of first passage and Y type connector 8 is spliced, and the multifunctional channel passes through in addition to being used for guiding wire 4, It can also be used for injecting heparin, contrast agent etc., and two interfaces of the Y type connector 8 are female Luer, preferably 6% mark Quasi- female Luer.

Clinical specific embodiment: the case where preoperative radiography assessment lesion vessels, select suitable dimension foley's tube and Catheter sheath selects suitable position puncture vessel, seal wire is placed in vascular lesion position by catheter sheath, guidewire proximal is along sacculus The tip hole of conduit is inserted into, and is pushed forward into foley's tube until hemadostewnosis diseased region.Seal wire can be withdrawn from if needed, from Y The guide wire exit openings of type connector inject contrast agent to observe diseased region.Seal wire is reinserted after completing radiography, by pump and Y type The sacculus of connector fills mouth and is connected, and starting pump is until more than sacculus nominal pressure, and balloon expandable finishes after 5~240 seconds, ball More cutting wires are extruded into vascular wall around capsule, by pathological tissues stripping and slicing.Starting pumping vacuum is fully retracted sacculus, then withdraws from Foley's tube.

Embodiment 2

There is provided its schematic diagram of foley's tube as figure 9, the present embodiment remaining and embodiment 1 in addition to humping section and connector Unanimously, details are not described herein, 1 is wherein tip tube in Fig. 9, and 2 be inner tube, and 3 be sacculus, and 4 be guiding wire, and 5 be cutting wire, and 6 It is developing ring for conduit, 7,8 be connector, and 9 fill mouth for sacculus, and 10 be fast exchange guidewire port

As shown in figure 9, sacculus 3 passes through the modes such as laser welding connecting conduit 6.It is worn inside balloon body 32 distal end of inner tube It crosses, is connected thereto to form balloon cavity seal point in balloon distal.Inner tube 2 can permit guiding wire 4 and pass through from its inner cavity, guiding 0.014 inch, 0.018 inch, 0.035 inch of the common nominal rating of seal wire 4.Inner tube 2 can be formed coaxially inside conduit 6 Shape can also form multi-cavity shape.6 polyamide of inner tube 2 and conduit, the common medical grade plastic material such as polyethylene are made.It leads Pipe 6 away from 10~1000mm of balloon proximal at, inner tube 2 is pierced by from conduit 6, and inner tube 2 is formed fastly together with 6 welded closure of conduit Fast exchange guidewire mouth 10.6 proximal end of conduit is connect with connector 8.Connector 8 and the viscous glutinous pressure that formed of conduit 6 fill cavity, external Pressurizing device fills mouth 9 by sacculus and is connected with connector 8, and stamping pump enters conduit 6 through 8 pressurising chamber of connector, until sacculus Ontology 3.

The utility model clinic specific embodiment: preoperative radiography assesses the case where lesion vessels, selects suitable dimension Foley's tube and catheter sheath select suitable position puncture vessel, and seal wire is placed in vascular lesion position, seal wire by catheter sheath Proximal end is inserted into along the tip hole of foley's tube, is pushed forward into foley's tube until hemadostewnosis diseased region.It will pump and connector Sacculus fill mouth be connected, pressure charging pump until sacculus nominal pressure more than, balloon expandable finishes after 5~240 seconds, expandable prosthetic More cutting wires are extruded into vascular wall, by pathological tissues stripping and slicing.Starting pumping vacuum is fully retracted sacculus, then withdraws from sacculus and lead Pipe.

Claims (10)

1. a kind of Cutting balloon characterized by comprising

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；

The both ends of the cutting wire are individually fixed in the both ends of the balloon body；

The cutting wire includes foldable structure.

2. a kind of Cutting balloon characterized by comprising

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；The cutting wire includes foldable structure；The balloon body Limiting slot is provided on the outer surface of one end, one end of the cutting wire is set in limiting slot, and the other end is fixed on the ball The other end of capsule ontology.

3. a kind of Cutting balloon characterized by comprising

Balloon body；

The cutting wire being arranged radially along the balloon body outer surface；The cutting wire includes foldable structure；

It is provided with the first limiting slot on the outer surface of described balloon body one end, the second limit is provided on the outer surface of the other end Slot；One end of the cutting wire is set in the first limiting slot, and the other end is set in the second limiting slot.

4. Cutting balloon according to any one of claims 1 to 3, which is characterized in that the length of the cutting wire is more than Length 1~100mm of the balloon body in contraction state.

5. Cutting balloon according to any one of claims 1 to 3, which is characterized in that the number of the cutting wire is n, n For the integer more than or equal to 2；Angle between the cutting wire is 360 °/n.

6. Cutting balloon according to any one of claims 1 to 3, which is characterized in that the cutting wire includes collapsible Wave structure and/or coil type spring structure.

7. Cutting balloon according to claim 6, which is characterized in that the cross section of the coil type spring structure is circle One of shape, triangle and rectangle are a variety of.

8. Cutting balloon according to any one of claims 1 to 3, which is characterized in that the cutting wire is along balloon body The slope position of one or both ends is foldable structure when expansion state, and rest part is linear structure.

9. Cutting balloon according to any one of claims 1 to 3, which is characterized in that the outer surface of the balloon body It is additionally provided with medication coat.

10. a kind of foley's tube, which is characterized in that including set gradually tip tube, described in claim 1~9 any one Cutting balloon and conduit；

The tip tube is not connected to the Cutting balloon；The Cutting balloon is connected with the conduit；

Inner tube is provided in the Cutting balloon；One end of said inner tube is connected with tip tube；

When the conduit includes multi-lumen tube, the other end of said inner tube is connected with a channel of multi-lumen tube；

When the conduit is single lumen catheter, the other end of said inner tube is extended through in conduit；

Running through in the tip tube, inner tube and conduit has guiding wire.