CN104873305A - Intraoperative branched on-demand block stent type artificial blood vessel system and use method - Google Patents
Intraoperative branched on-demand block stent type artificial blood vessel system and use method Download PDFInfo
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Abstract
The invention discloses an intraoperative branched on-demand block stent type artificial blood vessel system and a use method. The intraoperative branched on-demand block stent type artificial blood vessel system comprises an artificial blood vessel main body, a branched covered stent, a branched blocking device and a releasing device, wherein the branched blocking device is positioned around a joint between the artificial blood vessel main body and the branched covered stent or positioned in the cavity of the branched covered stent; the branched blocking device is separably connected with the artificial blood vessel or the branched covered stent, so that communication control between aortic vascular and branch vessels can be realized. By using the intraoperative branched on-demand block stent type artificial blood vessel system and the use method, the blocking and communication of the aortic vascular and the branch vessels on an aortic arch can be controlled as required, the dissociation, blocking or fitting and the like of the branch vessels on the arch is reduced or avoided, surgical operation is simplified greatly, and injury of blood vessels and peripheral tissues are reduced.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to cardiovascular surgical procedure and treat the medical device technology used.
Background technology
Arotic disease is the cardiovascular disease of one group of serious threat human health, mainly comprises dissection of aorta, aortic aneurysm etc.Wherein dissection of aorta is a kind of catastrophic disease, and if do not treated in time, prognosis is extremely dangerous.According to document announcement, the patient of untreated dissection of aorta Early mortality rate increase by 1%, more than 50% per hour is dead in 1 week.In recent years, along with aged tendency of population, hypertension/arteriosclerosis sickness rate increase and the progress of non-invasive Medical Imaging Technology, be cumulative year after year trend to the recall rate of this type of disease.But China's medical level development is at present unbalanced, only has several hospitals could carry out the surgical intervention of arotic disease.Especially be known as treatment by international counterparts and involve the standard art formula of aortic arch and descending aorta dilatancy pathological changes, namely grandson's krimer operation (Sun ' s Procedure), because operation easier is large, operation risk is high, adds the difficulty that it is applied.
Grandson's krimer operation is taught by Sun Lizhong and was founded in 2003, and be mainly applicable to thoracic aorta or thoracoabdominal aorta pathological changes patient widely, such pathological changes involves ascending aorta, aortic arch and thoracoabdominal aorta.The aortic arch that grandson's krimer operation Application and Development is new is replaced and the operation of support trunk, descending aorta implant frame type artificial blood vessel, further simplify operation process, at minimizing postoperative hemorrhage, improves the aspect better effects if such as far-end false chamber make rate.The current thousands of example of clinical practice, and promote all over the world, achieve good clinical effectiveness, be known as the standard art formula for the treatment of and involving aortic arch and descending aorta dilatancy pathological changes by international counterparts.
Adopt existing Aortic arch replacement and Stent-graft, for realizing the replacement of aortic arch, need the upper head arm branch vessel of bow be dissociated, blocks and be coincide.There are many important organizational structuries in the surrounding of aortic arch, comprise trachea, esophagus, nerve, thoracic duct etc., very high technical requirement is proposed to the free of head arm blood vessel, especially can injure vagus nerve, phrenic nerves and recurrent laryngeal nerve when free bow far-end antetheca and identical rear wall.For fat, Ascending Aortic Aneurysm is pushed, aortic arch branch anatomic abnormalities, chronic dissection of aorta particularly interlayer involve the patient of head arm blood vessel, increasing the difficulty of free bow top set blood vessel, is also one of difficult point of applying of current grandson's krimer operation.
Summary of the invention
The present invention proposes a kind of Shu Zhong branch blocking type Stent-graft system and using method as required, is intended to solve the problems such as branch vessel in existing aortic surgery is free, damaging surrounding tissue.Described Shu Zhong branch as required blocking type Stent-graft system with branch's blocking vessel, can replace in surgical operation at aortic arch, control aorta vessel and aortic arch top set intervascular blocking-up as required and be communicated with, reduce or avoid dissociating, block and coincideing bow top set blood vessel, reduce operating difficulty, reduce operation wound.
In order to realize this object, the technical scheme that the present invention takes is as follows.
A kind of Shu Zhong branch blocking type Stent-graft system as required, described Shu Zhong branch as required blocking type Stent-graft system comprises main body artificial blood vessel, branch's overlay film frame, branch's blocking vessel, near the junction that described branch blocking vessel is positioned at main body artificial blood vessel and branch's overlay film frame or branch's overlay film frame intracavity, described branch blocking vessel is connected for separable with between main body artificial blood vessel or branch's overlay film frame, for controlling aorta vessel and aortic arch top set intervascular blocking-up in operation as required and being communicated with.
The quantity of wherein said branch overlay film frame is 1 to 3, correspondingly, described Stent-graft comprises 1 or more branch's blocking vessel, the aortic arch top set blood vessel that the aorta vessel connected for blocking main body artificial blood vessel is connected with 1,2 or 3 branch's overlay film frames.
Especially, described branch blocking vessel can be flexible blocking-up thin slice, and described flexibility blocks thin slice by controlled method of attachment, is preset in the periphery of main body artificial blood vessel and branch's overlay film frame junction.
In addition, described Stent-graft also comprises suture and conciliates off-line, correspondingly, main body artificial blood vessel and the outer of branch's overlay film frame junction are with more than one sewing hole, and described flexibility blocks thin slice is connected to main body artificial blood vessel and branch's overlay film frame junction periphery according to following separable mode:
Suture one end is fixed to the point on described flexibility blocking-up thin slice, remainder is with sub-thread doubling form, from Stent-graft main part intracavity side, pass along in described more than one sewing hole, separate off-line outside the artificial lumen of vessels of main body, along passing successively rip out stitches endoporus, guaranteeing that suture does not come off from described sewing hole, realizing described flexibility blocking-up thin slice and being connected with the controlled of periphery of branch's overlay film frame junction described main body artificial blood vessel.
Described branch blocking vessel can be can fill sacculus, described sacculus blocking vessel of filling comprises and can fill sacculus and conduit, can filling for being fixedly connected with between sacculus with conduit, sacculus can be filled and be positioned at branch's overlay film frame intracavity, under occupied state, being close to the inwall of branch's overlay film frame.
In addition, described conduit has graduation mark, insert distance for what determine to fill sacculus.
Particularly, described branch blocking vessel is that the flexibility blocking-up thin slice that can tolerate 100 mmhg pressures maybe can fill sacculus blocking vessel.
Described Shu Zhong branch as required blocking type Stent-graft system also comprises releasing device, described releasing device comprises seeker, king-rod, hands handle, lashing wire, pull back bar and the release of branch overlay film frame of main body artificial blood vessel release is pulled back bar, seeker is positioned at the distal end of Stent-graft, handle is positioned at the proximal part of Stent-graft, king-rod is connected between seeker and handle, Stent-graft before release is compressed on king-rod, and it is fixing with lashing wire constraint, main body discharges bar of pulling back and is connected to main body artificial blood vessel and controls its release, branch discharges bar of pulling back and is connected to branch's overlay film frame and controls its release.
A using method for Shu Zhong branch blocking type Stent-graft system as required, said method comprising the steps of:
A1, main body artificial blood vessel is inserted aorta vessel, by stent inserting aortic arch top set of branch blood vessel, discharge branch's overlay film frame, main body artificial blood vessel and branch's blocking vessel;
B1, when needing to recover aorta vessel with being communicated with between aortic arch top set blood vessel, withdraw from solution off-line, pull suture to pass from sewing hole, branch's blocking vessel is withdrawn from from main body artificial blood vessel.
The using method of another kind of Shu Zhong branch blocking type Stent-graft system as required, said method comprising the steps of:
A2, main body artificial blood vessel is inserted aorta vessel, by stent inserting aortic arch top set of branch blood vessel, release branch overlay film frame, main body artificial blood vessel;
B2, can fill sacculus install beforehand at branch's overlay film frame intracavity, jointly be discharged with support, or send into branch's overlay film frame inner chamber by the artificial intravascular space of main body in operation process, connecting duct is drawn from main body artificial blood vessel proximal part;
C2, scale by conduit, regulate the position can filling sacculus to make it to be in target location;
D2, inject implant by conduit to sacculus can be filled, make to fill the inwall that sacculus is close to branch's overlay film frame;
E2, when needing to recover aorta vessel with being communicated with between aortic arch top set blood vessel, by the emptying implant of filling in sacculus of conduit, and sacculus can be filled by conduit and withdraw from external.
By adopting Shu Zhong branch of the present invention blocking type Stent-graft system and using method as required, following Advantageous Effects can be obtained.
1, due to the branch's blocking vessel design in Shu Zhong branch as required blocking type Stent-graft system, in grandson's krimer operation, can avoid completely to aortic arch top set blood vessel free, the operation such as coincide, reduce the damage to blood vessel and surrounding tissue, reduce operating difficulty.
2, branch's blocking vessel and Stent-graft miscellaneous part can be compressed jointly, and after compression, volume, form do not affect overall inserting and discharging in operation.
3, branch's blocking vessel is with solution off-line, and the connection between itself and Stent-graft is controlled, can withdraw from external according to needs in operation by suture or pull bar by branch's blocking vessel, postoperative without any legacy.
4, by branch's blocking vessel, can while Stent-graft release is opened or in short-term in, realize the obstruct between aortic arch top set blood vessel and aorta vessel, and the pressure that is not more than 100 millimetress of mercury can be born and do not lose efficacy.
Accompanying drawing explanation
Fig. 1 be specific embodiment of the invention Zhong Shuzhong branch as required blocking type Stent-graft system release before structural representation.
Fig. 2 be specific embodiment of the invention Zhong Shuzhong branch as required blocking type Stent-graft system release after structural representation.
Fig. 3 is the specific embodiment of the invention Zhong Shuzhong branch structural representation of blocking type Stent-graft system under environment for use as required.
Fig. 4 is the flexible structural representation blocking thin slice branch blocking vessel in the specific embodiment of the invention.
Fig. 5 is the structural representation can filling sacculus blocking vessel in the specific embodiment of the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
First the element in Figure of description representated by each Reference numeral or organization name is introduced.
1 main body artificial blood vessel,
2 branch's overlay film frames,
3 branch's blocking vessels,
4 seekers,
5 handles,
6 main body artificial blood vessels discharge bar of pulling back,
7 branches' overlay film frames discharge bar of pulling back,
8 blocking vessels withdraw from bracing wire,
9 aortic arch displacement artificial blood vessels,
10 human body descending aortas,
11 main body artificial blood vessels (after inserting aorta),
12 branch's overlay film frames (after inserting branch vessel),
The 13 flexible blocking-up cross sections blocking thin slice and formed,
The 14 endovascular blood flow directions of aortic arch top set,
15 connect branch blocking vessels withdraw from bracing wire,
16 sutures,
17 connect suture and the flexible point blocking thin slice,
18 sewing holes,
19 separate off-line,
20 can fill sacculus,
21 conduits.
The example embodiment that following discloses are detailed.But concrete structure disclosed herein and function detail are only the objects for describing example embodiment.
Should be appreciated that, the present invention is not limited to disclosed concrete example embodiment, but covers all modifications, equivalent and the alternative that fall within the scope of the disclosure.In the description to whole accompanying drawing, identical Reference numeral represents identical element.
Should be appreciated that, term "and/or" as used in this comprises one or morely relevant lists any of item and all combinations simultaneously.Should be appreciated that in addition, when parts or unit are called as " connection " or " coupling " to another parts or unit, it can be directly connected or coupled to miscellaneous part or unit, or also can there is intermediate member or unit.In addition, other words being used for describing relation between parts or unit should be understood according to identical mode (such as, " between " to " directly ", " adjacent " to " direct neighbor " etc.).
As shown in Figure 1, a kind of Shu Zhong branch blocking type Stent-graft system is as required disclosed in the specific embodiment of the invention, described Shu Zhong branch as required blocking type Stent-graft system comprises main body artificial blood vessel 1, branch's overlay film frame 2 and branch's blocking vessel 3, described branch blocking vessel 3 is positioned near main body artificial blood vessel 1 and the junction of branch's overlay film frame 2 or branch's overlay film frame 2 intracavity, described branch blocking vessel 3 is connected for separable with between main body artificial blood vessel 1 or branch's overlay film frame 2, connection between the aortic arch top set blood vessel that the aorta vessel connected for blocking main body artificial blood vessel 1 is as required connected with branch overlay film frame 2.
As shown in Figure 2, branch of the present invention blocking vessel 3 can block by the physics between the aortic arch top set blood vessel that is connected with branch overlay film frame 2 of the aorta vessel that connects of realization body artificial blood vessel 1.In order to reach better barrier effect, in a specific embodiment, described branch blocking vessel 3 is the blocking vessel that can tolerate 100 mmhg pressures.
Due to the diversity of human body thoracic aorta bow top set blood vessel, Shu Zhong branch of the present invention as required blocking type Stent-graft system has plurality of specifications and the branch blocking vessel 3 supporting with it, the aortic arch top set blood vessel within diameter 20mm capable of blocking and being communicated with between aorta vessel.Corresponding to the left subclavian artery on aortic arch, left common carotid artery, innominate artery 3 branch vessel, the quantity of described branch overlay film frame 2 can be 1 to 3, correspondingly, described Shu Zhong branch as required blocking type Stent-graft system comprises 1 and with top set's blocking vessel 3, for blocking the connection between aortic arch top set blood vessel that aorta vessel that main body artificial blood vessel 1 connects is connected with 1,2 or 3 branch's overlay film frames 2.
Described branch blocking vessel 3 can be contacted by point cantact, linear contact lay or face with the separable connection between main body artificial blood vessel 1 or branch's overlay film frame 2 and realize.Correspondingly, described branch blocking vessel 3 maybe can fill sacculus blocking vessel for flexibility blocks thin slice.
In one embodiment, as shown in Figure 3, described branch blocking vessel 3 is flexible blocking-up thin slice 13, and correspondingly, described flexibility blocks the separable periphery being connected to main body artificial blood vessel 1 and branch's overlay film frame 2 junction of thin slice 13.
Described flexibility blocks thin slice 13 and different modes can be used to be connected to the periphery of main body artificial blood vessel 1 and branch's overlay film frame 2 junction, in a more concrete embodiment, conciliate off-line 19 coordinate by suture 16, junction point 17, sewing hole 18, realize the flexible thin slice 13 that blocks and be connected with separable between main body artificial blood vessel 1 and the periphery of branch's overlay film frame 2 junction.
As shown in Figure 4, wherein Fig. 4-A is outside branch's overlay film frame 2, the view along its axle center to main body artificial blood vessel 1 direction, and Fig. 4-B is the view from main body artificial blood vessel 1 intracavity to branch's overlay film frame 2 direction.To block thin slice 13 corresponding with flexibility, described Stent-graft also comprises suture 16, junction point 17 conciliates off-line 19, correspondingly, be with more than one sewing hole 18 outside main body artificial blood vessel 1 and branch's overlay film frame 2 junction, described flexibility blocks thin slice 13 according to the separable periphery being connected to main body artificial blood vessel 1 and branch's overlay film frame 2 junction of under type:
Suture 16 one end is fixed to the junction point 17 that described flexibility blocks thin slice 13, remainder is with sub-thread doubling form, from main body artificial blood vessel 1 intracavity side, pass along in described more than one sewing hole 18, described flexibility is blocked the periphery that thin slice 13 is connected to described main body artificial blood vessel 1 and branch's overlay film frame 2 junction.As shown in Fig. 4-B, when suture 16 is through sewing hole 18, form " ∩ " shape in described periphery.
Separate off-line 19 to pass from described sewing hole 18 and multiple similar sewing hole, namely pass from " ∩ " shape, to guarantee that suture 16 does not come off from described sewing hole 18, and can as required after solution off-line 19 is withdrawn from, again suture 16 is pulled out from described sewing hole 18, withdraw from flexible blocking-up thin slice 13 by junction point 17.
Therefore, blocking-up between the aortic arch top set blood vessel that the aorta vessel that main body artificial blood vessel 1 connects is connected with branch overlay film frame 2 is controlled, that is the connection between branch's blocking vessel 3 and main body artificial blood vessel 1 or branch's overlay film frame 2 is separable, can need by bracing wire or pull bar branch's blocking vessel 3 to be withdrawn from according to operation external and without any legacy.
When flexibility block thin slice 13 be connected to described main body artificial blood vessel 1 and branch's overlay film frame 2 junction peripheral time, the endovascular blood flow direction 14 of aortic arch top set can not flow to aorta, and blood flows to as shown in Figure 3.
Especially, described is bio-medical material for connecting the flexible material blocking the suture 16 of thin slice 13 and main body artificial blood vessel 1, and has the suture of some strength, as medical chinlon line, medical polyester thread etc. all can be used as suture 16.
In addition, for ensureing that flexible blocking-up thin slice 13 and main body artificial blood vessel 1 are compressed on the releasing device of Stent-graft jointly, and do not affect overall inserting in operation, the flexible thin slice 13 that blocks answers small volume or compressible, such as use the homogeneous materials such as the bio-medical material implanted with human body, the rear volume of compression does not affect Stent-graft and inserts normally in operation.
Block thin slice 13, suture 16, junction point 17 with flexibility, that sewing hole 18 conciliates off-line 19 be corresponding, also disclose the using method of a kind of Shu Zhong branch blocking type Stent-graft system as required in embodiment of the present invention, said method comprising the steps of:
A1, main body artificial blood vessel 1 is inserted aorta vessel, branch's overlay film frame 2 is inserted aortic arch top set blood vessel, discharge main body artificial blood vessel 1, branch's overlay film frame 2 and branch's blocking vessel 3 (flexible block thin slice 13), as shown in Figure 3.Such flexibility blocks thin slice 13 and opens completely, and block blood flow in aortic arch top set and enter aorta, suture 16 conciliates off-line 19 by main body artificial blood vessel 1 intracavity, and forward end is drawn, and remains within sweep of the eye.
B1, when needing to recover aorta vessel with being communicated with between aortic arch top set blood vessel, withdraw from and separate off-line 19, suture 16 is pulled to pass successively from more than one sewing hole 18, finally under junction point 17 drives, flexibility is blocked thin slice 13 to withdraw from from main body artificial blood vessel 1, recover aortic arch top set and being communicated with between aorta, flexibility blocks thin slice 13 and withdraws from device in vivo without leaving over.
Like this, by the cooperation that flexibility blocks thin slice 13, suture 16, junction point 17, sewing hole 18 conciliate off-line 19, can block or be communicated with aorta vessel and aortic arch top set blood vessel as required, in operation, avoid operations such as aortic arch top set blood vessel being dissociated, coincide.
In another embodiment, as shown in Figure 5, described branch blocking vessel 3 is for can fill sacculus blocking vessel, described sacculus blocking vessel of filling comprises and can fill sacculus 20 and conduit 21, can fill between sacculus 20 with conduit 21 as being fixedly connected with, sacculus 20 can be filled and be positioned at branch's overlay film frame 2 intracavity, under occupied state, be close to the inwall of branch's overlay film frame 2.
In order to more convenient operation, in one more specifically embodiment, described conduit 21 has graduation mark, for determining the implantation site can filling sacculus 20.
Corresponding with sacculus blocking vessel can be filled, the invention discloses the using method of a kind of Shu Zhong branch blocking type Stent-graft system as required, said method comprising the steps of:
A2, main body artificial blood vessel 1 is inserted aorta vessel, branch's overlay film frame 2 is inserted aortic arch top set blood vessel, discharge main body artificial blood vessel 1, branch's overlay film frame 2.Sacculus 20 can be filled and conduit 21 install beforehand is released simultaneously at branch's overlay film frame 2 intracavity, or insert after the release of operation process medium-height trestle;
B2, can fill sacculus 20 and send into branch's overlay film frame 2 intracavity, by the scale of conduit 21, adjustment can fill the position of sacculus 20 at branch's overlay film frame 2 intracavity, finally makes it to be in target location;
C2, inject implant by conduit 21 to sacculus 20 can be filled, make to fill the inwall that sacculus 20 is close to branch's overlay film frame 2, realize the intervascular blocking-up of aorta vessel and aortic arch top set;
D2, when needing to recover aorta vessel with being communicated with between aortic arch top set blood vessel, by the emptying implant of filling in sacculus 20 of conduit 21, and sacculus 20 can be filled by conduit 21 and withdraw from external.
Specifically, sacculus blocking vessel install beforehand Stent-graft intracavity under compression can be filled and jointly insert, or insert after the release of operation process medium-height trestle.In operation process, first the main body artificial blood vessel 1 of blocking type Stent-graft is inserted descending aorta blood vessel, branch's overlay film frame 2 inserts aortic arch top set blood vessel, first branch's overlay film frame 2 is discharged, discharge main body artificial blood vessel 1 again, now aortic arch top set blood vessel is communicated with between aorta.From Stent-graft inner chamber, the related conduit 21 of sacculus 20 can be filled and send into branch's overlay film frame 2 intracavity rapidly, and by the graduation mark on conduit 21, judge to fill inserting distance and determining optimal location of sacculus 20.Inject implant by conduit 21 to filling in sacculus 20, make to fill sacculus 20 and fill, and be close to branch's overlay film frame 2 inwall, block aortic arch top set blood vessel and being communicated with between aorta vessel by face contact.
In addition, if the Shu Zhong branch of preset-type blocking type Stent-graft system as required, in above-mentioned steps B2, do not need to fill sacculus 20 and send into branch's overlay film frame 2 intracavity.
When needing to recover aortic arch top set blood vessel with being communicated with between aorta vessel, first by the emptying implant of filling in sacculus 20 of conduit 21, make the contact separation can filling sacculus 20 and branch's overlay film frame 2 inwall, and sacculus 20 entirety can be filled by conduit 21 and withdraw from external, recover aortic arch top set blood vessel and being communicated with between aorta vessel, sacculus 20 can be filled and conduit 21 is left over without any in vivo.Completely avoid in operation to aortic arch top set blood vessel free, the operation such as coincide.Due to related surgical operate in the open visual field under carry out, the inserting of sacculus 20, position adjustment can be filled, fullly can to complete in short-term.
Sacculus 20 can be filled and also can be used as the remedial measure that other blocking vessels occur when losing efficacy because of unpredictable reason, can realize inserting in short-term, fill, block, have good substituting.
In addition, Shu Zhong branch of the present invention as required blocking type Stent-graft system also comprises releasing device, as shown in Figure 1, and described releasing device comprises seeker 4, bar 6 is pulled back in handle 5, main body artificial blood vessel release and the release of branch overlay film frame is pulled back bar 7.Seeker 4 is positioned at the distal end of Stent-graft, for the position of guide support type artificial blood vessel.Handle 5 is positioned at the proximal part of Stent-graft, hand-held for operator.Main body artificial blood vessel discharges bar 6 of pulling back and is connected to main body artificial blood vessel 1 and controls its release, and branch's overlay film frame discharges bar 7 of pulling back and is connected to branch's overlay film frame 2 and controls its release.
Therefore, Shu Zhong branch blocking type Stent-graft system and the using method as required of the application of the invention, in grandson's krimer operation, can avoid completely to aortic arch top set blood vessel free, the operation such as coincide, reduce the damage to blood vessel and surrounding tissue, reduce operating difficulty.In addition, branch's blocking vessel and Stent-graft miscellaneous part can be compressed jointly, and after compression, volume, form do not affect overall inserting and discharging in operation.
It should be noted that; above-mentioned embodiment is only the present invention's preferably embodiment; can not limiting the scope of the invention be understood as, not depart under concept thereof of the present invention, all protection scope of the present invention is belonged to modification to any minor variations that the present invention does.
Claims (10)
1. Zhong Shuzhong branch blocking type Stent-graft system as required, described Shu Zhong branch as required blocking type Stent-graft system comprises main body artificial blood vessel, branch's overlay film frame, branch's blocking vessel, near the junction that described branch blocking vessel is positioned at main body artificial blood vessel and branch's overlay film frame or branch's overlay film frame intracavity, described branch blocking vessel is connected for separable with between main body artificial blood vessel or branch's overlay film frame, for controlling aorta vessel and aortic arch top set intervascular blocking-up in operation as required and being communicated with.
2. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 1, it is characterized in that, the quantity of described branch overlay film frame is 1 to 3, correspondingly, described Stent-graft comprises 1 or more branch's blocking vessel, the aortic arch top set blood vessel that the aorta vessel connected for blocking main body artificial blood vessel is connected with 1,2 or 3 branch's overlay film frames.
3. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 1, it is characterized in that, described branch blocking vessel can be flexible blocking-up thin slice, described flexibility blocks thin slice by controlled method of attachment, is preset in the periphery of main body artificial blood vessel and branch's overlay film frame junction.
4. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 3, it is characterized in that, described Stent-graft also comprises suture and conciliates off-line, correspondingly, main body artificial blood vessel and the outer of branch's overlay film frame junction are with more than one sewing hole, and described flexibility blocks thin slice is connected to main body artificial blood vessel and branch's overlay film frame junction periphery according to following separable mode:
Suture one end is fixed to the point on described flexibility blocking-up thin slice, remainder is with sub-thread doubling form, from Stent-graft main part intracavity side, pass along in described more than one sewing hole, separate off-line outside the artificial lumen of vessels of main body, along passing successively rip out stitches endoporus, guaranteeing that suture does not come off from described sewing hole, realizing described flexibility blocking-up thin slice and being connected with the controlled of periphery of branch's overlay film frame junction described main body artificial blood vessel.
5. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 1, it is characterized in that, described branch blocking vessel can be can fill sacculus, described sacculus blocking vessel of filling comprises and can fill sacculus and conduit, can fill between sacculus with conduit as being fixedly connected with, sacculus can be filled and be positioned at branch's overlay film frame intracavity, under occupied state, be close to the inwall of branch's overlay film frame.
6. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 5, it is characterized in that described conduit has graduation mark, insert distance for what determine to fill sacculus.
7. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 1, it is characterized in that, described branch blocking vessel is that the flexibility blocking-up thin slice that can tolerate 100 mmhg pressures maybe can fill sacculus blocking vessel.
8. according to the blocking type Stent-graft system as required of the Shu Zhong branch described in claim 1, characterized by further comprising releasing device, described releasing device comprises seeker, king-rod, hands handle, lashing wire, pull back bar and the release of branch overlay film frame of main body artificial blood vessel release is pulled back bar, seeker is positioned at the distal end of Stent-graft, handle is positioned at the proximal part of Stent-graft, king-rod is connected between seeker and handle, Stent-graft before release is compressed on king-rod, and it is fixing with lashing wire constraint, main body discharges bar of pulling back and is connected to main body artificial blood vessel and controls its release, branch discharges bar of pulling back and is connected to branch's overlay film frame and controls its release.
9. the using method of Zhong Shuzhong branch blocking type Stent-graft system as required, said method comprising the steps of:
A1, main body artificial blood vessel is inserted aorta vessel, by stent inserting aortic arch top set of branch blood vessel, discharge branch's overlay film frame, main body artificial blood vessel and branch's blocking vessel;
B1, when needing to recover aorta vessel with being communicated with between aortic arch top set blood vessel, withdraw from solution off-line, pull suture to pass from sewing hole, branch's blocking vessel is withdrawn from from main body artificial blood vessel.
10. the using method of Zhong Shuzhong branch blocking type Stent-graft system as required, said method comprising the steps of:
A2, main body artificial blood vessel is inserted aorta vessel, by stent inserting aortic arch top set of branch blood vessel, release branch overlay film frame, main body artificial blood vessel;
B2, can fill sacculus install beforehand at branch's overlay film frame intracavity, jointly be discharged with support, or send into branch's overlay film frame inner chamber by the artificial intravascular space of main body in operation process, connecting duct is drawn from main body artificial blood vessel proximal part;
C2, scale by conduit, regulate the position can filling sacculus to make it to be in target location;
D2, inject implant by conduit to sacculus can be filled, make to fill the inwall that sacculus is close to branch's overlay film frame;
E2, when needing to recover aorta vessel with being communicated with between aortic arch top set blood vessel, by the emptying implant of filling in sacculus of conduit, and sacculus can be filled by conduit and withdraw from external.
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| CN106388972A (en) * | 2016-10-18 | 2017-02-15 | 福建省立医院 | Composite type intraoperative stent system and using method thereof |
| CN106821545A (en) * | 2016-11-29 | 2017-06-13 | 刘永民 | Blocking-up type branch stent blood vessel on demand in a kind of combined type art |
| CN107595348A (en) * | 2017-10-19 | 2018-01-19 | 孙晓刚 | Total aortic arch replacement and support elephant trunk technique aorta clamping device |
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| CN110801309A (en) * | 2019-10-20 | 2020-02-18 | 黄健兵 | Tectorial membrane stent blood vessel composite set for reconstructing aortic arch part and three branches |
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| CN115006053A (en) * | 2022-08-09 | 2022-09-06 | 北京华脉泰科医疗器械股份有限公司 | Integrated intraoperative stent and stent implantation method |
| CN116712229A (en) * | 2023-08-10 | 2023-09-08 | 北京华脉泰科医疗器械股份有限公司 | Tectorial membrane support conveying system |
| CN116712229B (en) * | 2023-08-10 | 2024-01-12 | 北京华脉泰科医疗器械股份有限公司 | Tectorial membrane support conveying system |
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