A kind of metallic blood vessel dilating sacculusTechnical field
The utility model relates to a kind of metallic blood vessel dilating sacculus, belong to Angiectasis sacculus technical field.
Background technique
The disease as caused by hemadostewnosis is more and more, and in interventional therapy, balloon expandable is always essential therapeutic arsenals.Current dilating sacculus is generally divided into compliant balloon and non-compliance.Compliant balloon and non-compliance sacculus are macromoleculeMaterial, completely enclosed blood vessel that can be of short duration during expanding blood vessel.Therefore, the blood of patient will be controlled in preoperative and artPressure.And it will also be according to the sacculus of the specific state of an illness selection suitable diameter of patient to achieve the purpose that expand and not injure blood vessel.
Therefore, a kind of metallic blood vessel dilating sacculus is designed, it will not block blood vessel, improve the safety of blood vessel extension.
Summary of the invention
Technical problem to be solved by the utility model is to provide a kind of metallic blood vessel dilating sacculus, it solves meshPreceding high molecular material sacculus, in extension vascular process, the problem of entire blood vessel can be blocked.
Technical problem to be solved in the utility model takes following technical scheme to realize:
A kind of metallic blood vessel dilating sacculus, it is by fixing pipe, preceding expansion pipe, support tube, rear expansion pipe, sliding tube, sheathIt constituting, the fixing pipe is fixed on sheath front end, and it expands and manages before the along the circumferential direction equidistant hinged multistage in fixing pipe rear end, everyThe preceding hinged support tube in expansion pipe rear end expands pipe behind hinged one of every support tube rear end, expands rod rear end edges after allCircumferencial direction is equidistantly hinged on sliding tube front end, and sliding canister is in sheath.
As preferred embodiment, pipe is expanded before the fixing pipe rear end is along the circumferential direction hinged 3~8 equidistant, accordinglySupport tube, rear expansion pipe quantity are identical as preceding expansion pipe quantity.
As preferred embodiment, limit casing is cased in the sheath, limit casing is between fixing pipe, sliding tube.
As preferred embodiment, the support tube is in charge of by the hollow support of multistage to be constituted with tensioner rope, and tensioner rope is elasticityRope, the hollow support of multistage, which is in charge of, to be sequentially sleeved on tensioner rope, is fixed after tensioner rope both ends are tensed with support tube both ends, eachSupport tenses to form a support tube by tensioner rope between being in charge of.
The metal balloon body is made of stainless steel or Nitinol, and surface treatment is smooth, does not damage blood vessel.
In use, casing one end is connect with sliding tube by the way that casing is arranged in sheath, the other end passes through personnel control edgeSheath is mobile, changes sliding tube position, to control metal sacculus expanded dimension.Scale mark, observation set are set in sheathThe pipe distance mobile relative to sheath, to accurately control metal sacculus expanded dimension.
The beneficial effects of the utility model are:
(1) when carrying out blood vessel dilatation by metal sacculus, the structure of hollow out will not blocking blood flow, it is safer to patient；
(2) metal sacculus expanded dimension can be controlled according to the position of sliding tube in surgical procedure；
(3) metal sacculus developability is good, convenient for observing in art；
(4) support tube is in charge of by the hollow support of multistage and is constituted with tensioner rope, when metal sacculus is placed or is taken out, branchStay tube can be bent, convenient for moving along blood vessel trend.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that the utility model is shunk outward；
Fig. 3 is structural schematic diagram of the utility model to contract；
Fig. 4 is the structural schematic diagram of the utility model support tube.
In figure: fixing pipe 1, preceding expansion pipe 2, support tube 3, support are in charge of 31, tensioner rope 32, rear to expand pipe 4, sliding tube 5,Sheath 6, limit casing 7.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness to the utility model are easy to understand, tie belowConjunction is specifically illustrating, and the utility model is further described.
As Figure 1-Figure 4, a kind of metallic blood vessel dilating sacculus, it is by fixing pipe 1, preceding expansion pipe 2, support tube 3, rear expansionIt opens pipe 4, sliding tube 5, sheath 6 to constitute, fixing pipe 1 is fixed on 6 front end of sheath, and 1 rear end of fixing pipe is along the circumferential direction equidistantly cut with scissorsPipe 2 is expanded before connecing multistage, the hinged support tube 3 in 2 rear end of pipe is expanded before every, is expanded behind every hinged one of 3 rear end of support tubePipe 4 is opened, all rear 4 rear ends of expanding bar are along the circumferential direction equidistantly hinged on 5 front end of sliding tube, and 5 sets of sliding tube in sheath 6.
Pipe 2, corresponding support tube 3, rear expansion pipe are expanded before 1 rear end of fixing pipe is along the circumferential direction hinged 3~8 equidistant4 quantity are identical as preceding expansion 2 quantity of pipe.
Limit casing 7 is cased in sheath 6, limit casing 7 is between fixing pipe 1, sliding tube 5.Limit metal sacculus mostBig expanded dimension.
Metal sacculus is shunk and open configuration:
As shown in Fig. 2, (1) mobile sliding tube 5, far from fixing pipe 1, preceding expansion pipe 2, support tube 3, rear expansion pipe 4 stretch,It is close to sheath 6, completes to shrink, facilitates in insertion blood vessel；The reverse movement of sliding tube 5 is gradually opened.
As shown in figure 3, not setting limit casing 7 in (2) sheath 6, the sum of preceding expansion pipe 2, length of rear expansion pipe 4 are less than branchAt this moment 3 length of stay tube moves sliding tube 5 close to fixing pipe 1, preceding expansion pipe 2, support tube 3, rear expansion pipe 4 fold, and are close to sheath6, it completes to shrink, facilitate in insertion blood vessel；The reverse movement of sliding tube 5 is gradually opened.
Both the above mode can be realized the contraction and opening of metal sacculus.
As shown in figure 4, support tube 3 by the hollow support of multistage be in charge of 31 and tensioner rope 32 constitute, tensioner rope 32 be elasticityRope, the hollow support of multistage are in charge of 31 and are sequentially sleeved on tensioner rope 32, consolidate after 32 both ends of tensioner rope are tensed with 3 both ends of support tubeFixed, each support, which is in charge of between 31 to tense by tensioner rope 32, forms a support tube 3.
In use, casing one end is connect with sliding tube 5, and the other end passes through by the way that casing (not shown) is arranged in sheath 6Personnel control is moved along sheath 6, changes 5 position of sliding tube, to control metal sacculus expanded dimension.It is arranged in sheath 6 and carvesScale designation, the observation casing distance mobile relative to sheath 6, to accurately control metal sacculus expanded dimension.
When carrying out blood vessel dilatation by metal sacculus, the structure of hollow out will not blocking blood flow, it is safer to patient；OperationMetal sacculus expanded dimension can be controlled according to the position of sliding tube 5 in the process, and the position of sheath 6 can be in by casingThe size that label clearly tells doctor to expand；Metal sacculus developability is good, convenient for observing in art；Support tube 3 is hollow by multistage31 and the composition of tensioner rope 32 are in charge of in support, and when metal sacculus is placed or is taken out, support tube 3 can be bent, convenient for along blood vesselMove towards movement.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current rowThe technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention andUnder the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within the utility model and wantIn the range of asking protection.The protection scope of the present invention is defined by the appended claims and their equivalents.