CN208372275U - Foley's tube - Google Patents

Abstract

The utility model discloses a kind of foley's tubes, including push conduit and positioned at least two expandable balloons of push distal end of catheter.Pushing conduit includes catheter main body and branch's tube body set on catheter main body distal end.Branch's tube body includes at least the first branch and the second branch extended respectively to different directions.Between the axial direction of first branch and the axial direction of the second branch the range of angle be (0 °, 180 °].Expandable balloon includes at least one first sacculus that the first leg distal end is arranged in and at least one second sacculus that the second leg distal end is arranged in.The proximal diameter of the active section of first sacculus and at least one sacculus in the second sacculus is less than the rest part diameter of the active section of the sacculus.The foley's tube of the utility model can disposably expand the stenotic lesion of bifurcated vessels, reduce intubation number, make expansion sufficiently, avoid vascular tear, can also save operating time, reduce operation cost and complexity.

Description

Foley's tube

Technical field

The utility model belongs to the field of medical instrument technology, is related to a kind of foley's tube.

Background technique

Foley's tube is a kind of tool for blood vessel Transluminal Angioplasty, be widely used to percutaneous transluminal angio plasty and In the clinical medicine of percutaneous transluminal coronary angioplasty.Existing balloon catheter structure is usually can at distal end of catheter setting one The single saccule conduit of dilating sacculus.When using this single saccule conduit processing bifurcated vessels lesion, common there are two types of processing Mode:

A kind of mode is that single saccule conduit is respectively adopted first to expand bifurcated front and bifurcated rear portion, then with single Inferior vena cava balloon dilation branch vessel.Hypectasia in the middle part of bifurcated is had the disadvantage in that using this processing mode；Repeatedly expansion is led Cause blood vessel excessive tearing；Use the costly of multiple foley's tubes；Patient is repeatedly intubated, and pain increases；Repeated intubation expands , operation is complicated, and the time is long, and doctor's working strength is high.

Another way is to be expanded simultaneously using single saccule conduit to before, during and after bifurcated, then divided with independent balloon expandable Branch.It has the disadvantage in that bifurcated back segment vascular tear is serious using this processing mode, easily leads to vascular dissection, Jin Erxu Other means are wanted to remedy (such as implantation bracket)；Blood vessel excessive tearing is easily caused simultaneously, hyperplasia is also easy to cause and is formed secondary Property it is narrow.

Utility model content

The technical problem to be solved by the present invention is in view of the drawbacks of the prior art, provide a kind of distal end bifurcated Foley's tube can disposably expand the stenotic lesion position of bifurcated vessels, so that expansion is abundant in the middle part of bifurcated, while can also subtract It is intubated number less, avoids vascular tear, has saved operating time, has reduced operation complexity and cost.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of foley's tube, including push conduit and positioned at least two distensible balls of the push distal end of catheter Capsule.The push conduit includes catheter main body and branch's tube body set on the catheter main body distal end.Branch's tube body is at least Including the first branch and the second branch extended respectively to different directions.The axial direction of first branch and second branch Between axial direction the range of angle be (0 °, 180 °].The expandable balloon includes that first leg distal end is arranged at least One the first sacculus, at least one second sacculus that second leg distal end is set.First sacculus and described second The proximal diameter of the active section of at least one sacculus in sacculus is less than the rest part diameter of the active section of the sacculus.

In the foley's tube, preferably described first sacculus is close close to the part of proximal end or/and second sacculus The diameter of the part of proximal end is gradually reduced by distal end to proximal end.

In the foley's tube, the preferably described catheter main body is multi-lumen tube.Edge is axially arranged with mutually not in the multi-lumen tube The first guidewire lumen, the second guidewire lumen, the first full chamber and the second full chamber of connection.First guidewire lumen is by the conduit master Body proximal end is axially through extremely first leg distal end.Second guidewire lumen is by the catheter body proximal ends axially through to institute State the second leg distal end.The distal end of the first full chamber is connected to the inner cavity of first sacculus.The second full chamber Distal end is connected to the inner cavity of second sacculus.

In the foley's tube, the preferably described foley's tube further includes the handle set on the catheter body proximal ends.Institute Handle is stated equipped with the first guidewire port, the second guidewire port, the first full port and the second full port.First seal wire Port is connected to the proximal end of first guidewire lumen.Second guidewire port is connected to the proximal end of second guidewire lumen.Institute The first full port is stated to be connected to the proximal end of the described first full chamber.The second full port is close with the described second full chamber End connection.

In the foley's tube, the preferably described catheter main body includes the first tube body and the second tube body.First tube body Distal end be connected with the proximal end of first branch.The distal end of second tube body is connected with the proximal end of second branch.

In the foley's tube, only axially opposed movement between preferably described first tube body and second tube body, It axially simultaneously and is diametrically moved between first branch and second branch.

In the foley's tube, preferably described second tube body is movably arranged in first tube body, and described Side wall of first tube body close to distal end is equipped with through-hole.The distal end of second tube body is pierced by from the through-hole and with described second The proximal end of branch is connected.

In the foley's tube, preferably described first tube body is set side by side with second tube body, and first pipe Body and second tube body are arranged in jointly in hollow hoop part.

In the foley's tube, preferably foley's tube further includes being set to the first catheter block of the first tube body proximal end and being set to Second catheter block of the second tube body proximal end, and relatively described first catheter block of second catheter block is axially movable.

The first guidewire lumen and the first full chamber of perforation are equipped in the foley's tube, in preferably described first tube body. The second guidewire lumen and the second full chamber of perforation are equipped in second tube body.It is led equipped with third the proximal end of first catheter block Silk port and third fill port.The proximal end of second catheter block is equipped with the 4th guidewire port and the 4th full port.It is described Third guidewire port is connected with the proximal end of first guidewire lumen.The proximal end of 4th guidewire port and second guidewire lumen It is connected.The third fills port and is connected with the proximal end of the described first full chamber.The 4th full port is filled with described second Be full of chamber proximal end be connected.

The utility model is respectively set at least on branch's tube body by the way that branch's tube body is arranged in the distal end of catheter main body One expandable balloon at least has the advantages that compared with prior art

The branched pipe physical efficiency of the foley's tube of the utility model, distal end enters in multiple branches of bifurcated vessels simultaneously, can Disposably to expand the stenotic lesion position of bifurcated vessels, vascular tear is avoided, in the middle part of bifurcated the problem of hypectasia, together When can save operating time, reduce operation complexity, avoid patient repeatedly by intubation bring pain.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the foley's tube of embodiment one, and foley's tube includes push conduit and leads positioned at push Two expandable balloons of pipe distal end, push conduit includes catheter main body and branch's tube body positioned at catheter main body distal end；

Fig. 2 is the cross-sectional view of catheter main body distal end in Fig. 1, branch's tube body and two expandable balloons；

Fig. 3 to Fig. 5 is the schematic diagram of three kinds of embodiments of the expandable balloon in Fig. 2；

Fig. 6 to Figure 10 is the structural schematic diagram of the different embodiments of the catheter main body in the foley's tube of embodiment two；

Figure 11 is the structural schematic diagram of the foley's tube of embodiment three, and foley's tube includes push conduit and leads positioned at push Two expandable balloons of pipe distal end, push conduit includes catheter main body and branch's tube body positioned at catheter main body distal end；

Figure 12 is the cross-sectional view of catheter main body distal end in Figure 11, branch's tube body and two expandable balloons；

Figure 13 is the cross-sectional view of the another embodiment of the catheter main body in Figure 11.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed Illustrate specific embodiment of the present utility model.

Firstly the need of explanation, in intervention medical field, the one end that usually will be close to operator is referred to as proximal end, will be far from One end of operator is referred to as distal end.

Embodiment one

Referring to Figure 1, the foley's tube that the utility model embodiment one provides, including push conduit and be located at push conduit At least two expandable balloons of distal end.

Pushing conduit includes catheter main body 100 and branch's tube body 200 set on 100 distal end of catheter main body.Branch's tube body 200 Including at least Liang Ge branch.Specifically, in the present embodiment, branch's tube body 200 is y-type structure, has and prolongs respectively to different directions The first branch 210 and the second branch 220 stretched.Expandable balloon include be arranged in 210 distal end of the first branch at least one One sacculus 300, at least one second sacculus 400 that 220 distal end of the second branch is set.Specifically, first point in the present embodiment The distal end of branch 210 is equipped with first sacculus 300, and the distal end of the second branch 220 is equipped with second sacculus 400.Pass through as a result, Branch's tube body 200 pushes to the first sacculus 300 and the second sacculus 400 in two branch vessels of bifurcated vessels respectively, can be real Now expanded simultaneously to before, during and after bifurcated vessels.It is understood that in other embodiments, the first sacculus 300 and The quantity of two sacculus 400 can be respectively multiple, and certain axial distance or each other it are spaced between multiple first sacculus 300 Between be sequentially connected without interval, be spaced between multiple second sacculus 400 certain axial distance or each other without interval successively connect It connects.Thus, it is possible to expansion while realizing the multistage stenotic lesion position for each branch vessel.For each first sacculus 300 and second sacculus 400, it needs to be equipped with corresponding full chamber simultaneously in catheter main body 100, for full to the sacculus.

There is angle α between the axial direction of first branch 210 and the axial direction of the second branch 220.The range of α be (0 °, 180 °], That is 0 ° of α≤180 ° <.Since the angle between two branch vessels of bifurcated vessels is generally less than or equal to 180 °, α In this range, it is conducive to the first branch 210 and the second branch 220 and the first sacculus 300 and the second sacculus 400 is sent into bifurcated respectively In two branch vessels of blood vessel.It is understood that the anatomical structure according to the diseased region for needing to expand is different, branched pipe Body 200 can also have more than two branch, as long as expandable balloon is respectively set on each limb.

Please also refer to Fig. 2, the active section of the proximal diameter of the active section of the second sacculus 400 less than the second sacculus 400 Rest part diameter.The active section of expandable balloon refers to: generally cylindrical, can be with after the full expansion of expandable balloon Blood vessel is bonded the part for expanding blood vessel.The reason of being arranged in this way be, when branch's tube body 200 by the first sacculus 300 and After second sacculus 400 is pushed to simultaneously in two branch vessels of bifurcated vessels, the work of the first sacculus 300 and the second sacculus 400 Make section proximal end while being located at the bifurcation site of bifurcated vessels, and the blood vessel diameter of the bifurcation site is certainly less than two branch vessels The sum of diameter.Therefore in order to avoid being located at the work of the active section proximal end of the first sacculus 300 of bifurcation site and the second sacculus 400 Lead to the vascular tear of bifurcation site, 300 active section proximal diameter of the first sacculus and the second sacculus 400 after Duan Jinduan is full simultaneously The sum of active section proximal diameter need to be less than the sum of 400 active section rest part diameter of the first sacculus 300 and the second sacculus.Meanwhile For expandable balloon, effective length, that is, active section length of sacculus refers to that after sacculus is full be in generally cylindrical body shape Shape, the length for being bonded vascular wall in the course of surgery, playing support, dilating effect to blood vessel, therefore the length of active section determines The spreading performance of sacculus.The proximal diameter of the active section of second sacculus 400 of the present embodiment is less than its of the active section of the sacculus Remaining section diameter, compared with common taper sacculus, the second sacculus 400 still has longer effective length, therefore full Afterwards, higher to the expanding ability of the vascular wall of branch vessel.In addition to above embodiment, the work of the first sacculus 300 can also be Make the rest part diameter of the proximal diameter of section less than the active section of the first sacculus 300.Or first sacculus 300 and the second sacculus The proximal diameter of the active section of 400 two sacculus is all respectively smaller than the rest part diameter of the active section of the two sacculus.

First sacculus 300 close to proximal end part or/and the second sacculus 400 close to the part of proximal end diameter by distally extremely Proximal end is gradually reduced.As a result, after the first sacculus 300 and the second sacculus 400 fill simultaneously, bifurcation site can be further prevented Vascular tear.The specific structure of first sacculus 300 and the second sacculus 400 is as follows:

Shown in Figure 3, specifically, the first sacculus 300 is fixed on the distal end of the first branch 120.Fixed mode is weldering The technological means generally in the art such as connect, be bonded, details are not described herein.First sacculus 300 by close end, distal portion and therebetween Active section composition.The close end and distal portion of first sacculus 300 are that general conical structure 310, intermediate active section 320 are Diameter range is the cylindrical structure of 2-15mm.The length range of first sacculus 300 is 30-320mm.First sacculus 300 has The length range for imitating length, that is, active section 320 is 20-300mm.The surface of first sacculus 300 can coat at least one layer of drug and apply Layer 330.Medication coat 330 can cover all surfaces or part of the surface of the first sacculus 300.In the present embodiment, drug Coating 330 is mainly disposed on the outer surface of active section.Inhibition smooth muscle cell proliferation effect can be contained in medication coat 330 Active medicine, such as taxol, rapamycin.The diameter of first sacculus 300, effective length can be selected according to blood vessel diameter. Medication coat 330 is applied to the prior art, and details are not described herein.The active section 320 of first sacculus 300 is set as substantially cylinder Shape, it is ensured that the first sacculus 300 after full has good adherence quality, and can have certain length to attach blood vessel, guarantees Drug is effectively transferred on blood vessel.

Second sacculus 400 is weldingly fixed on the distal end of the second branch 220.Second sacculus 400 close to proximal end part it is straight Diameter is gradually reduced by distal end to proximal end.There are many embodiments for this structure being gradually reduced, such as: the second sacculus 400 removes The rest part of distal portion is in general conical, and the diameter of the taper is gradually reduced (as shown in Figure 3) by distal end to proximal end.Or The close end 403 and distal portion 401 of second sacculus 400 are respectively contrary general conical, and middle part 402 is cylinder, circle (as shown in Figure 4) is seamlessly transitted between cylindricality and taper.Again or the close end 403 of the second sacculus 400 and distal portion 401 are distinguished For contrary general conical, middle part 402 is cylinder, and diameter is differently formed hierarchic structure (such as between cylindrical and taper Shown in Fig. 5).The pyramidal structure of the close end 403 of second sacculus 400, generally taper change small long taper, to form one section The taper that length is longer, diameter change is small, and the diameter of the part conic is much smaller relative to cylindrical part.Taper, length Pyramidal structure can increase the spacing between the first sacculus 300 and the second sacculus 400, avoid filling the latter two fittings or spacing is too small And leads to excessive blood vessel dilatation, vascular tear or form interlayer, while increasing the effective length after balloon expandable fills (that is, length of work segment).

Shown in Figure 4, the surface of the second sacculus 400 coats at least one layer of medication coat 330.Medication coat 330 is arranged In the outer surface of the cylindrical part of the second sacculus 400.In other embodiments, the surface of the second sacculus 400 can not also be set Set medication coat 330.

The size of first sacculus 300 and the second sacculus 400 is depending on the blood vessel diameter to be expanded, specifically without limitation. The diameter of first sacculus 300 can be slightly larger than 400 diameter of 400 diameter of the second sacculus or 300 diameter of the first sacculus and the second sacculus It is identical.

Referring again to Fig. 1, corresponding first branch within the scope of the effective length of the first sacculus 300 and the second sacculus 400 210 and second be respectively provided with sacculus positioning in branch 220 development positioning device 13 and development positioning device 23.It is effectively long Degree range refers to the length range of the active section of the first sacculus 300 or the second sacculus 400.Positioning device 13 of developing and development positioning dress Setting 23 can be using ring made of X-ray developing material, ribbon, tablet etc., can show it under instrument detection Position is to indicate balloon position.The quantity of development positioning device 13 and development positioning device 23 in each branch can be one Or it is multiple.Positioning device 13 of developing and development positioning device 23 can be to weld, is Nian Jie, hot with the connection type of each branch The technological means generally in the art such as press, press, details are not described herein.

Please also refer to Fig. 2, catheter main body 100 is multi-lumen tube.Branch's tube body 200 is arranged in the distal end of catheter main body 100.It leads Pipe main body 100 can be integrally formed with branch tube body 200；It catheter main body 100 and branch tube body 200 or seperated ties Structure, that is, catheter main body 100 is assembled again after being separately formed with branch tube body 200 and is fixed together.Assembling fixed mode can be The technological means generally in the art such as bonding, welding, hot melt, threaded connection or interference fit, details are not described herein.

Edge is axially arranged with mutual disconnected first guidewire lumen 130, the second guidewire lumen 230, the first full chamber 140 in multi-lumen tube And the second full chamber 240.First guidewire lumen 130 is by 100 proximal end of catheter main body axially through to the distal end of the first branch 210.Second Guidewire lumen 230 is by 100 proximal end of catheter main body axially through to the distal end of the second branch 220.The distal end and first of first full chamber 130 The inner cavity of sacculus 300 is connected to.The distal end of second full chamber 230 is connected to the inner cavity of the second sacculus 400.

The cross-sectional shape of multi-lumen tube is not construed as limiting, and only four function cavitys is needed to be spaced from each other.First guidewire lumen 130 It is used to accommodate with the second guidewire lumen 230 and passes through seal wire.Therefore, the first guidewire lumen 130 and the second guidewire lumen 230 need to use Cavity is smooth and shape is conducive to the mobile lumen form of seal wire.For example, Fig. 6 is referred to, the first guidewire lumen 130 and the second guidewire lumen The shapes such as round or ellipse are usually selected in 230 cross section.The cross section shape of first full chamber 140 and the second full chamber 240 Shape is not construed as limiting, and can be any shape, such as round (as shown in Figure 6) or crescent (as shown in Figure 7).Art technology Personnel can be arranged according to the cross-sectional shape of conduit, the location and shape of the first guidewire lumen 130 and the second guidewire lumen 230 is pushed It can guarantee the first full chamber 140 and the second full chamber 240 of the maximum cross-section area.It is understood that in other embodiments In, the multiple first full chambers 140 or the second full chamber 240 can be set in multi-lumen tube, as long as each distal end point of full chamber It is not connected to the inner cavity of expandable balloon, that is, the flow of full liquid or gas can be improved, and then improve expandable balloon Full and pressure release speed.

Referring again to Fig. 1, foley's tube further includes the handle 500 set on 100 proximal end of catheter main body.Handle 500 is equipped with First guidewire port 510, the second guidewire port 520, the first full port 530 and the second full port 540.First guidewire port 510 are connected to the proximal end of the first guidewire lumen 130.Second guidewire port 520 is connected to the proximal end of the second guidewire lumen 230.First fills Be full of port 530 is connected to the proximal end of the first full chamber 140.Second full port 540 is connected to the proximal end of the second full chamber 240.

In the present embodiment, the position between the first branch 210 and the second branch 220 in branch's tube body 200 is fixed not Become.That is, the first sacculus 300 that 210 distal end of the first branch is arranged in and the second sacculus 400 that 220 distal end of the second branch is arranged in Between position immobilize.

The implementation process that foley's tube provided in this embodiment is used to expand bifurcated vessels is as follows:

Pass through gripping after being inserted into foley's tube provided in this embodiment to patient's body along seal wire by percutaneous puncture Handle 500 pushes push conduit to distal end, and the first branch 210 and the second branch 220 respectively enter under the guidance of respective seal wire Two branch vessels of crotch.At this point, the first sacculus 300 active section distal end, 400 active section of the second sacculus distal end also respectively into Enter two branch vessels, and 300 active section proximal end of the first sacculus, 400 active section proximal end of the second sacculus are then simultaneously positioned at blood vessel point Vent sets place, and the two partly overlaps.Connected respectively by the first full port 530 of 500 proximal end of handle and the second full port 540 Outer balloon dilatation pressure pump is connect, full liquid respectively enters the first sacculus via the first full chamber 140 and the second full chamber 240 30 and second inside sacculus 400, and the first sacculus 300 and the second sacculus 400 expand respectively, to the stenotic lesion of two branch vessels It expands simultaneously at position.Since the active section proximal diameter of the second sacculus 400 is less than active section rest part diameter, the first sacculus The total outer diameter of lap between 400 proximal end of 300 proximal ends and the second sacculus reduces.Therefore, not only the first sacculus 300 and the second ball The diameter of capsule 400 can adapt to the main branch after bifurcated and branch, lap also adapt to the blood vessel diameter at bifurcation site, Avoid the vascular tear at bifurcation site.

Foley's tube provided in this embodiment at least has the advantages that compared with prior art

(1) the branched pipe physical efficiency of distal end enters in multiple branches of bifurcated vessels simultaneously, can disposably expand bifurcated blood The stenotic lesion position of pipe avoids vascular tear, bifurcated middle part hypectasia, while can save operating time, reduces operation Complexity avoids patient repeatedly by intubation bring pain.

(2) multiple expandable balloons can be arranged in multiple branches, can disposably expand for the foley's tube of the present embodiment Multi-segmental lesion.

(3) in the foley's tube of the present embodiment, the proximal diameter of the active section of expandable balloon is less than remaining of the sacculus Partial diameter can preferably adapt to the anatomical features of bifurcated vessels, avoid damage to vascular bifurcation position, also can guarantee work Make section with longer effective length, improves expanding ability.

Embodiment two

The structure for the foley's tube that embodiment two provides and the structure for the foley's tube that embodiment one provides are essentially identical.Area Place is not, in the foley's tube that embodiment two provides, the conduit of the foley's tube of the structure and embodiment one of catheter main body The structure of main body is different.

Specifically, catheter main body includes outer tube (that is, first tube body) and is installed in outer tube at least in the present embodiment One inner tube (that is, second tube body).It is fixed together, not can be movable relatively between first tube body and the second tube body.Inner tube Distal end or the distal end of outer tube be connected respectively with the proximal end of the proximal end of the first branch or the second branch.Outer tube or/and inner tube In be equipped with mutually not the first guidewire lumen of connection, the second guidewire lumen, the first full chamber and the second full chamber.In the present embodiment, according to Inner tube quantity is different, and outer tube has different structures.

Fig. 8 is referred to, an inner tube is only installed in outer tube, then the inner cavity of the inner tube can be used as the first guidewire lumen 130 or the Two guidewire lumens 230.Outer tube is the multi-lumen tube at least three lumens, and one of lumen is as the first guidewire lumen 130 or the Two guidewire lumens 230, two lumens in addition are respectively as the first full chamber 140 and the second full chamber 240.

Fig. 9 is referred to, two inner tubes, and two substantially parallel arrangements of inner tube are worn in outer tube.The lumen of two inner tubes point It Zuo Wei not the first guidewire lumen 130 and the second guidewire lumen 230.Two regions between outer tube and two inner tubes are filled respectively as first It is full of chamber 140 and the second full chamber 240.

Referring to Figure 10, three inner tubes can be installed in outer tube, and two of them inner tube is set in together.It is set in together In two inner tubes, the lumen of internally positioned inner tube can be used as the first guidewire lumen 130 or the second guidewire lumen 230.Another independence Inner tube inner cavity as the second guidewire lumen 230 or the first guidewire lumen 130.Gap and two suits between outer tube and inner tube Inner tube between gap respectively as the first full chamber 140 and the second full chamber 240.

It is understood that in other embodiments, in the inner tube of two parallel arrangements, at least two pipes can respectively be arranged Chamber, then a lumen in each inner tube is as the first guidewire lumen 130 or the second guidewire lumen 230, and lumen in addition is as first The full full chamber 240 of chamber 140 or the second.

It is understood that can install four inner tubes in other embodiments, in outer tube, wherein at least two inner tube is big Parallel (that is, side by side) arrangement is caused, remaining inner tube and the inner tube of the two laid out in parallel are set with.The inner tube of the two laid out in parallel Lumen is respectively as the first guidewire lumen 130 and the second guidewire lumen 230, and gap and inner tube and inner tube between outer tube and inner tube Between gap respectively as the first full chamber and the second full chamber.

It should be understood that the above inner tube and outer tube mutual alignment relation are example, it is suitble to the structure of the utility model It is all within the protection scope of the present utility model.

The foley's tube of the present embodiment at least has the advantages that compared with prior art

The branched pipe physical efficiency of distal end enters in multiple branches of bifurcated vessels simultaneously, can disposably expand bifurcated vessels Stenotic lesion position avoids vascular tear, bifurcated middle part hypectasia, while can save operating time, and it is complicated to reduce operation Degree avoids patient repeatedly by intubation bring pain.

Embodiment three

The structure for the foley's tube that embodiment three provides and the structure for the foley's tube that embodiment one provides are essentially identical.Area Place is not, in the foley's tube that embodiment three provides, the conduit of the foley's tube of the structure and embodiment one of catheter main body The structure of main body is different.

Specifically, referring to Figure 11, the catheter main body 100 for pushing conduit includes the first tube body 110 and the second tube body 120. It axially opposed can be moved between first tube body 110 and the second tube body 120.The distal end of first tube body 110 and the first branch 210 Proximal end is connected.The distal end of second tube body 120 is connected with the proximal end of the second branch 220.First point in branch's tube body 200 as a result, Branch 210 and second can axially simultaneously and radial motion between branch 220.That is, the first ball of 210 distal end of the first branch is arranged in Position between capsule 300 and the second sacculus 400 that 220 distal end of the second branch is arranged in is adjustable.The direction of adjustment is respectively as follows: It is axial, that is, the first sacculus 300 and the second sacculus 400 relative position in the axial direction are adjusted, to adapt to stenotic lesion in bifurcated vessels Position is different apart from crotch distance；It is radial, that is, the first sacculus 300 and the diametrically opposed position of the second sacculus 400 are adjusted, with It is different to adapt to angle between bifurcated vessels branch.

Specifically, the positional relationship between the first tube body 110 and the second tube body 120 can have following two embodiment:

Referring to Figure 11, the first embodiment: the second tube body 120 is movably arranged in the first tube body 110, and first 110 distal end side wall of tube body is provided with through-hole 111, and 120 distal end of the second tube body is pierced by from through-hole 111 and connect with the second branch 220. As a result, when the second tube body 120 is axially moved along the first tube body 110, the second branch 220 can be driven to 120 distal end of the second tube body or Proximal end is mobile, and the position of the second sacculus 400 is adjusted with this, different with the bifurcated vessels and the bifurcated vessels that adapt to different structure Narrow location.

Second of embodiment: (that is, side by side) setting substantially parallel between the first tube body 110 and the second tube body 120, the two Between connected by locating part so that axial mutually movement, no diameter can only occur between the first tube body 110 and the second tube body 120 To movement.There are many modes for locating part: such as locating part, which can be, to be arranged between the first tube body 110 and the second tube body 120 Lantern ring or the first tube body 110 and the second tube body 120 are movably arranged in hollow hoop part jointly, to limit Therebetween it only moves axially.The concrete shape and axial length of hoop part with no restriction, can according to the first tube body 110 and The length of second tube body 120 is adjusted.For example, hoop part can be round, ellipse or " 8 " font, hoop part may be used also To be there is the tubular body of certain axial length, or as shown in figure 13, the first tube body 110 and the second tube body 120 are set with The forms such as third tube body together.It is understood that in order to reduce the integral diameter of foley's tube, the first tube body 110 with The shape of second tube body 120 should complement each other to form the complete, shape without corner angle, such as round or ellipse.

Referring to Figure 12, the first guidewire lumen 130, the second guidewire lumen 230, in the first tube body 110 and the second tube body 120 One full chamber 140 and the second full chamber 240 are respectively independently arranged, i.e. the first guidewire lumen 130, the first full setting of chamber 140 are the In one tube body 110, the second guidewire lumen 230, the second full chamber 240 are arranged in the second tube body 120.

Referring again to Figure 11, foley's tube provided in this embodiment further includes set on the first of 110 proximal end of the first tube body Catheter block 600 and the second catheter block 500 set on 120 proximal end of the second tube body.Second catheter block 500 can be axially with respect to first Catheter block 600 moves.When the first tube body 110 and the second 120 coaxial package of tube body, handle 600 is sleeved on outside the first tube body 110. When first tube body 110 and the second tube body 120 are set side by side, then the first catheter block 600 is respectively independently set with the second catheter block 500 It sets.

The first guidewire lumen 130 and the first full chamber 140 of perforation are equipped in first tube body 110.It is equipped in second tube body 120 The second guidewire lumen 230 and the second full chamber 240 of perforation.The proximal end of first catheter block 600 is equipped with third guidewire port 610 and the Three full ports 620.The proximal end of second catheter block 500 is equipped with the 4th guidewire port 510 and the 4th full port 520.Third is led Silk port 610 is connected with the proximal end of the first guidewire lumen 130.4th guidewire port 510 is connected with the proximal end of the second guidewire lumen 230. Third fills port 620 and is connected with the proximal end of the first full chamber 140.The proximal end of 4th full port 520 and the second full chamber 240 It is connected.

To sum up, the foley's tube of the utility model, the branched pipe physical efficiency of distal end enter multiple branches of bifurcated vessels simultaneously In, the stenotic lesion position of bifurcated vessels can be disposably expanded, avoids vascular tear, bifurcated middle part hypectasia, while can To save operating time, operation complexity is reduced, avoids patient repeatedly by intubation bring pain.

Meanwhile the utility model can disposably expand more piece by the way that multiple expandable balloons are arranged in multiple branches Section lesion.

In addition, the proximal diameter of the active section of expandable balloon is less than the sacculus in the foley's tube of the utility model The diameter of rest part can preferably adapt to the anatomical features of bifurcated vessels, avoid damage to vascular bifurcation position, can also protect Demonstrate,proving active section has longer effective length, improves expanding ability.

Also, the second sacculus in the utility model can be movable relatively with the first sacculus, therefore the opposite position between sacculus Set it is adjustable so that the conduit of the utility model is using more flexible.It, can be according to lesion after the second sacculus enters branch Physical location, the position of the second sacculus is reasonably adjusted, so that it is preferably bonded diseased region.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of foley's tube, including push conduit and positioned at least two expandable balloons of the push distal end of catheter, It is characterized in that, the push conduit includes catheter main body and branch's tube body set on the catheter main body distal end, the branched pipe Body includes at least the first branch and the second branch extended respectively to different directions, the axial direction of first branch and described second Between the axial direction of branch the range of angle be (0 °, 180 °], the expandable balloon include be arranged in first leg distal end At least one first sacculus and at least one second sacculus of second leg distal end is set, first sacculus and The rest part that the proximal diameter of the active section of at least one sacculus in second sacculus is less than the active section of the sacculus is straight Diameter.

2. foley's tube according to claim 1, which is characterized in that first sacculus close to proximal end part or/and The diameter of part of second sacculus close to proximal end is gradually reduced by distal end to proximal end.

3. foley's tube according to claim 1, which is characterized in that the catheter main body is multi-lumen tube, the multi-lumen tube Interior edge is axially arranged with mutual disconnected first guidewire lumen, the second guidewire lumen, the first full chamber and the second full chamber；Described first leads Silk chamber is by the catheter body proximal ends axially through to first leg distal end, and second guidewire lumen is by the catheter main body Proximal end is axially through extremely second leg distal end；The distal end of the first full chamber is connected to the inner cavity of first sacculus, The distal end of the second full chamber is connected to the inner cavity of second sacculus.

4. foley's tube according to claim 3, which is characterized in that the foley's tube further includes being set to the conduit master The proximal end of the handle of body proximal end, the handle is filled equipped with the first guidewire port, the second guidewire port, the first full port and second It is full of port, first guidewire port is connected to the proximal end of first guidewire lumen, second guidewire port and described second The proximal end of guidewire lumen is connected to, and the first full port is connected to the proximal end of the described first full chamber, the second full port It is connected to the proximal end of the described second full chamber.

5. foley's tube according to claim 1, which is characterized in that the catheter main body includes the first tube body and the second pipe Body, the distal end of first tube body are connected with the proximal end of first branch, the distal end of second tube body with described second point The proximal end of branch is connected.

6. foley's tube according to claim 5, which is characterized in that between first tube body and second tube body only Axially opposed movement axially simultaneously and diametrically moves between first branch and second branch.

7. foley's tube according to claim 6, which is characterized in that second tube body is movably arranged in described In one tube body, and side wall of first tube body close to distal end is equipped with through-hole, and the distal end of second tube body is from the through-hole It is pierced by and is connected with the proximal end of second branch.

8. foley's tube according to claim 6, which is characterized in that first tube body is set side by side with second tube body It sets, and first tube body and second tube body are arranged in jointly in hollow hoop part.

9. foley's tube according to claim 5, which is characterized in that the foley's tube further includes being set to first pipe First catheter block of body proximal end and the second catheter block set on second tube body proximal end, and second catheter block is relatively described First catheter block is axially movable.

10. foley's tube according to claim 9, which is characterized in that be equipped with the first of perforation in first tube body and lead Silk chamber and the first full chamber, interior the second guidewire lumen for being equipped with perforation of second tube body and the second full chamber；First conduit The proximal end of seat is equipped with third guidewire port and third and fills port, the proximal end of second catheter block be equipped with the 4th guidewire port and 4th full port, the third guidewire port are connected with the proximal end of first guidewire lumen, the 4th guidewire port and institute The proximal end for stating the second guidewire lumen is connected, and the third fills port and is connected with the proximal end of the described first full chamber, and the described 4th fills Be full of port is connected with the proximal end of the described second full chamber.