CN208726523U

CN208726523U - A kind of taper step balloon dilating catheter

Info

Publication number: CN208726523U
Application number: CN201721021029.3U
Authority: CN
Inventors: 高成; 张珊; 孙绍民
Original assignee: Pulirui Medical Technology (suzhou) Co Ltd
Current assignee: Pulirui Medical Technology (suzhou) Co Ltd
Priority date: 2017-08-15
Filing date: 2017-08-15
Publication date: 2019-04-12
Anticipated expiration: 2027-08-15

Abstract

The utility model discloses a kind of taper step balloon dilating catheters, the sacculus dilating catheter includes conduit, positioned at the connection tube socket of tube at one end, it is managed positioned at the tip of the conduit other end, and the sacculus set on suitable patterns, the sacculus is taper stepped construction, it includes first sacculus with taper, and the second sacculus of zero draft, first sacculus closes on the setting of tip pipe, the outer diameter of second sacculus remains unchanged, the outer diameter of first sacculus is gradually increased along far from tip pipe direction, and first sacculus maximum outside diameter less than the second sacculus outer diameter, first sacculus and the second sacculus are respectively used to the bracket of implantation different-diameter.The sacculus of taper stepped construction includes second sacculus with the first sacculus and zero draft of taper, different sacculus can be selected to carry out bracket conveying when operation according to different lesions, the conveying of multiple brackets can be realized during primary simultaneously, the equipment cost in surgical procedure is reduced, operating time is shortened.

Description

A kind of taper step balloon dilating catheter

Technical field

The utility model relates to the field of medical instrument technology, more particularly to a kind of taper step balloon dilating catheter.

Background technique

Sacculus dilating catheter is a kind of tool for blood vessel Transluminal Angioplasty, is widely used to percutaneous endoluminal vascular at present In the clinical medicine of plasty and percutaneous transluminal angio plasty.Under the guiding of medical imaging device, pass through percutaneous puncture skill Sacculus dilating catheter is pushed to hemadostewnosis position by art, expands balloon expandable under proper intensive care, so that hemadostewnosis portion Position is expanded, to achieve the purpose that improve blood circulation.

Interventional medical device is medical device technology emerging in recent years, is reducing the wound to patient, is improving disease Very important effect is played in terms of therapeutic effect.For example, applying in the various intraluminal insertion type sacculus dilating catheters of human body Conveyer be can be used as to convey all kinds of brackets, as intravascular stent, biliary tract rack, esophageal stents, intestinal stent, stents of pancreatic duct, Urethra rack or trachea bracket etc..Moreover, the insertion type sacculus dilating catheter can also treat bare bracket and drug stent without The disease of method treatment, such as the treatment of Small vessel and bifurcated lesions branch process, in-stent restenosis.

In the prior art, it need to be corresponded to according to the bracket of different-diameter and bracket plant is carried out using different sacculus dilating catheters Enter, this increases operation cost to a certain extent；In addition, each bracket needs are separately implantable, it cannot achieve multiple brackets Disposable implantation, operating time is longer, improves the risk of operation to a certain extent.

Therefore, in view of the above technical problems, it is necessary to which a kind of taper step balloon dilating catheter is provided.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of taper step balloon dilating catheters.

To achieve the goals above, technical solution provided by the embodiment of the utility model is as follows:

A kind of taper step balloon dilating catheter, the sacculus dilating catheter include conduit, the company positioned at tube at one end Stub (tube), positioned at the conduit other end tip pipe and set on suitable patterns sacculus, the sacculus be taper staged knot Structure comprising the second sacculus of the first sacculus and zero draft with taper, first sacculus close on the setting of tip pipe, The outer diameter of second sacculus remains unchanged, and the outer diameter of the first sacculus is gradually increased along far from tip pipe direction, and the first sacculus is most Less than the outer diameter of the second sacculus, first sacculus and the second sacculus are respectively used to be implanted into the bracket of different-diameter big outer diameter.

First sacculus and the second sacculus, which are interconnected, as a further improvement of the utility model, is arranged.

The ratio between the maximum outside diameter of first sacculus and the outer diameter of the second sacculus as a further improvement of the utility model, For 1:4~3:4.

The maximum outside diameter of the minimum outer diameter of first sacculus and the first sacculus as a further improvement of the utility model, The ratio between be 1:3~2:3.

The conduit includes inner catheter and outer catheter as a further improvement of the utility model, and sacculus is located at outer catheter Periphery, the connection tube socket is connected with tip pipe by inner catheter, and sacculus and connection tube socket pass through inner catheter and outer catheter Between space be connected.

Several developing marks are equipped in the conduit as a further improvement of the utility model, developing mark is located at interior Between conduit and outer catheter.

The suitable patterns are being additionally provided with stress expansion close to connection tube socket side as a further improvement of the utility model, Separate tube.

The suitable patterns are additionally provided with balloon protective sleeve as a further improvement of the utility model, and the sacculus is located at Inside balloon protective sleeve.

The connection tube socket is equipped with several interfaces being connected with conduit as a further improvement of the utility model,.

The beneficial effects of the utility model are:

The sacculus of taper stepped construction includes second sacculus with the first sacculus and zero draft of taper, operation When different sacculus can be selected to carry out bracket conveying according to different lesions, while multiple can be being realized during primary The conveying of frame reduces the equipment cost in surgical procedure, shortens operating time.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments recorded in the utility model, for those of ordinary skill in the art, is not making the creative labor Under the premise of, it is also possible to obtain other drawings based on these drawings.

Fig. 1 a is the structural schematic diagram of sacculus dilating catheter in the utility model；

Fig. 1 b is the partial structurtes enlarged diagram in Fig. 1 a；

Fig. 2 is the first use state diagram of sacculus dilating catheter in the utility model；

Fig. 3 is the second use state diagram of sacculus dilating catheter in the utility model；

Fig. 4 is the third use state diagram of sacculus dilating catheter in the utility model.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution in the utility model, below in conjunction with this reality With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, 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 utility model In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts The range of the utility model protection all should belong in example.

For ease of description, term " distal end " and " proximal end " is used herein, close from operating side (namely connection tube socket) One end is proximal end, and one end far from operating side (namely connection tube socket) is distal end.

The utility model discloses a kind of taper step balloon dilating catheter, which includes conduit, position In the connection tube socket of catheter proximal end, positioned at the tip of distal end of catheter pipe and set on the sacculus of suitable patterns.Sacculus is taper rank Ladder type structure comprising the second sacculus of the first sacculus and zero draft with taper, the first sacculus close on tip pipe and set It sets, the outer diameter of the second sacculus remains unchanged, and the outer diameter of the first sacculus is gradually increased along far from tip pipe direction, and the first sacculus Less than the outer diameter of the second sacculus, the first sacculus and the second sacculus are respectively used to be implanted into the bracket of different-diameter maximum outside diameter.

Join shown in Fig. 1 a, 1b, the sacculus dilating catheter in one specific embodiment of the utility model includes conduit, is located at conduit Connection tube socket 20, the tip pipe 30 positioned at distal end of catheter and the sacculus 40 set on suitable patterns of proximal end.Wherein, conduit packet Inner catheter 11 and outer catheter 12 are included, sacculus 40 is located at the periphery of outer catheter 12, including the first sacculus 41, Yi Jiwu with taper Second sacculus 42 of taper, connection tube socket 20 and tip pipe 30 are connected by inner catheter 11, and sacculus 40 and connection tube socket 20 are logical The space crossed between inner catheter 11 and outer catheter 12 is connected.

Tip pipe 30 is made of nylon material, is heat bonding with inner catheter 11；Its length is generally 0.5~10 millimeter, It is best with 2~5 millimeters.

Preferably, several developing marks 50 are additionally provided in present embodiment, between inner catheter 11 and outer catheter 12. Developing mark 50 is embedded in or covers on conduit, and the location of developing mark is corresponding with the position of sacculus, this can be helped Doctor is helped to understand accurate location of the sacculus 40 in conveying.In addition, using developer solution when expanding to sacculus 40, allow doctor can Understand whether dilatation of the sacculus body at vascular lesion be ideal.

Connect tube socket 20 be equipped with several interfaces being connected with conduit, it is preferable that in present embodiment including at least with The second interface that the first interface and the space between inner catheter 11 and outer catheter 12 that inner catheter 11 is connected are connected, first Interface is used to carry out drug conveying in inner catheter, and second interface is used to control the expansion of sacculus.

Proximal end is trapped among outside outer catheter 12 and is additionally provided with stress spread pipe 60, and answering for conduit can be spread by stress spread pipe Power prevents conduit from damaging in process of expansion since stress is excessive.

In addition, being additionally provided with balloon protective sleeve (not shown) in 12 periphery of outer catheter, sacculus 40 is located inside balloon protective sleeve. Balloon protective sleeve is made of high molecular material, and balloon protective sleeve covers on sacculus 40, avoids sacculus 40 before use of performing the operation By damage, guarantee that sacculus 40 is not ruptured in high compression swelling.

The nylon material of sacculus 40, Pebax (one kind of nylon) or polyvinyl chloride (PVC) material are made, its proximal end Connect with 12 heat seal of outer catheter, for so that the sealing effect is better, distally with 11 heat bonding of inner catheter.With nylon, Pebax or PVC system At sacculus, by certain process, the folding memory performance of sacculus is excellent, after multiple dilation, still is able to Maintain original folding valve number, therefore it is with good memory performance.

Sacculus 40 in present embodiment is formed by the first sacculus 41 and the second sacculus 42.First sacculus 41 and the second sacculus 42, which are interconnected, is arranged, and can pass through the same interface and carry out balloon dilatation.

First sacculus 41 closes on the setting of tip pipe 30, and with taper, and outer distal end without leave is proximally gradually increased, and is defined The minimum outer diameter and maximum outside diameter of first sacculus 41 are respectively Φ 1, Φ 2；Second sacculus, 42 zero draft, outer diameter size are kept not Become, defining its outer diameter is Φ 3；And sacculus outer diameter meets: 1 < Φ of Φ, 2 < Φ 3.

Preferably, the ratio between the minimum outer diameter Φ 1 of the first sacculus and the maximum outside diameter Φ 2 of the first sacculus are in present embodiment The ratio between outer diameter of 1:3~2:3, the maximum outside diameter Φ 2 of the first sacculus and the second sacculus Φ 3 is 1:4~3:4.

As a specific embodiment of the utility model, the minimum outer diameter Φ 1 of the first sacculus and the maximum of the first sacculus are outer The ratio between diameter Φ 2 is that the ratio between the outer diameter of 1:2, the maximum outside diameter Φ 2 of the first sacculus and the second sacculus Φ 3 are 1:2.

Ginseng Fig. 2~Fig. 4 show the use state diagram of the utility model sacculus dilating catheter.

As shown in Fig. 2, when being implanted into first support 71 (diameter range be 1~Φ of Φ 2), the is carried out using the first sacculus 41 The implantation of one bracket.

As shown in figure 3, carrying out second support using the second sacculus 42 when being implanted into second support 72 (diameter is about Φ 3) Implantation.

As shown in figure 4, first support 71 (diameter range be 1~Φ of Φ 2) and second support 72 ought be implanted into simultaneously, (diameter is about When for Φ 3), the implantation of first support and second support is carried out simultaneously using the first sacculus 41 and the second sacculus 42.

It should be understood that being illustrated by taking two interconnected sacculus as an example in present embodiment, in other implementations In example, sacculus can also be separately positioned, and more than two step balloons also can be set, and most needs the sacculus for guaranteeing largest outside diameter For zero draft, remaining sacculus can be tapered sacculus, or the sacculus of zero draft is no longer illustrated one by one herein It is illustrated.

As can be seen from the above technical solutions, the utility model has the following beneficial effects:

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims

1. a kind of taper step balloon dilating catheter, the sacculus dilating catheter includes conduit, the connection positioned at tube at one end Tube socket, positioned at the conduit other end tip pipe and set on suitable patterns sacculus, which is characterized in that the sacculus be taper Stepped construction comprising the second sacculus of the first sacculus and zero draft with taper, first sacculus close on tip Pipe setting, the outer diameter of the second sacculus remain unchanged, and the outer diameter of the first sacculus is gradually increased along far from tip pipe direction, and the first ball Less than the outer diameter of the second sacculus, first sacculus and the second sacculus are respectively used to be implanted into the branch of different-diameter the maximum outside diameter of capsule Frame.

2. a kind of taper step balloon dilating catheter according to claim 1, which is characterized in that first sacculus and Second sacculus, which is interconnected, to be arranged.

3. a kind of taper step balloon dilating catheter according to claim 1, which is characterized in that first sacculus The ratio between outer diameter of maximum outside diameter and the second sacculus is 1:4~3:4.

4. a kind of taper step balloon dilating catheter according to claim 1, which is characterized in that first sacculus The ratio between maximum outside diameter of minimum outer diameter and the first sacculus is 1:3~2:3.

5. a kind of taper step balloon dilating catheter according to claim 2, which is characterized in that the conduit includes interior Conduit and outer catheter, sacculus are located at the periphery of outer catheter, and the connection tube socket is connected with tip pipe by inner catheter, sacculus and Connection tube socket is connected by the space between inner catheter and outer catheter.

6. a kind of taper step balloon dilating catheter according to claim 5, which is characterized in that be equipped in the conduit Several developing marks, developing mark is between inner catheter and outer catheter.

7. a kind of taper step balloon dilating catheter according to claim 1, which is characterized in that the suitable patterns exist Stress spread pipe is additionally provided with close to connection tube socket side.

8. a kind of taper step balloon dilating catheter according to claim 1, which is characterized in that the suitable patterns are also Equipped with balloon protective sleeve, the sacculus is located inside balloon protective sleeve.

9. a kind of taper step balloon dilating catheter according to claim 1, which is characterized in that on the connection tube socket Equipped with several interfaces being connected with conduit.