CN102871700A - Braided part system for embolizing aneurysm - Google Patents

Abstract

The invention discloses a novel braided part system for embolizing aneurysm and belongs to the field of medical instruments. The braided part system comprises a mesh braided part and a delivery system connected with the braided part. During an operation, a doctor can send the braided part to an aneurysm portion by a microcatheter and a sheath, the braided part which is compressed originally is pushed gradually and released into the aneurysm portion, and then is separated from the delivery system by an electric detaching manner or other detaching manners, the delivery system and the sheath are removed to the outside of the body of a patient, and the braided part is remained in the aneurysm portion as an embolism. The braided part system can embolize the aneurysm portion effectively, requirements to personal embolizing skills of the doctor in operation are lowered, operation time is shortened, impact to the top of the aneurysm is lowered, interference to blood flow in tumor-carried blood vessels is decreased, and clinical effects of aneurysm embolism is improved further.

Description

Be used for the aneurysmal knitted body of thromboembolism system

Technical field

The present invention relates to a kind of medical apparatus and instruments, more particularly, the present invention relates to a kind of novel aneurysmal knitted body of thromboembolism system that is used for.

Background technology

Aneurysm is a kind of common angiopathy.Instantly for how treating aneurysm, the doctor can use the inaccessible tumor neck of aneurysm clamp clinically, and bridging and use turn carry out the methods such as thromboembolism to aneurysm.Owing to using the inaccessible tumor neck of aneurysm clamp and these two kinds of operation methods of putting up a bridge, need to directly open the aneurysmal human body cavity of parcel, as open cranium and open breast etc., this brings no small damage at health for patient unavoidablely, and the wound restore cycle of patient in such operation is also longer simultaneously.Therefore, the doctor often tends to use turn that aneurysm is carried out thromboembolism clinically.Yet, use turn that aneurysm is carried out thromboembolism and often require the doctor that quite consummate turn filling skill is arranged, and for larger aneurysm, need the number of times of filling turn also more.For wide carotid aneurysm, using turn aneurysm to be carried out also require being used in conjunction with of other apparatuses such as support etc. in the process of thromboembolism, otherwise can bring turn to fall into the risk of carrying the tumor blood vessel.

The people's such as A Tuluo patent (CN 102014769 A) has been set forth a kind of aneurysm embolization device of knitted body.But the top structure of this kind device brings larger impact for weak aneurysm top, and its near-end ledge because fall into carries in the tumor blood vessel and disturbed to a certain extent blood circumstance.

The limitation of aneurysm treatment methods in view of the above in clinical use, need to invent more preferably apparatus, to realize in effective aneurysmal while of thromboembolism, reduce in the operation requirement to doctor individual embolization skills, reduce the operating time of operation, minimizing reduces the interference of flowing to carrying the tumor vessel inner blood to the impact at aneurysm top, further improves aneurysm thromboembolism clinical effectiveness.

Summary of the invention

The purpose of the present invention's invention is to overcome the deficiencies in the prior art, and the aneurysmal knitted body of a kind of novel thromboembolism system is provided.

The purpose of the present invention's invention is achieved through the following technical solutions:

A kind of for the aneurysmal knitted body of thromboembolism system, comprise netted knitted body and the induction system that is connected with knitted body.After discharging, described knitted body is the double-deck sphere structure of calabash shaped, the knitted body bottom flat, and place knitted body inner with the coupling part of induction system, namely this coupling part is not projected into the knitted body outside.

The purpose of the present invention's invention can also be achieved through the following technical solutions:

Be provided with the tension filament that connects bottom and top in the described knitted body.Described knitted body is formed by platinum wire and staggered mixed the knitting of titanium-nickel wire, and the ratio of platinum wire and titanium-nickel wire is adjusted in the fabrication stage according to the development effect of this knitted body.Described knitted body is that platinum wire, skin are that the two-layer compound seal wire of niti material consists of by SMIS, and the thickness proportion of platinum and NiTi is adjusted in the fabrication stage according to the development effect of this knitted body.Knitted body after the release can manufacture different size in advance to cooperate aneurysm and the pathological tissues of different sizes, form, tumor neck breadth degree.Be provided with the annulus of a macromolecular material between bottom the position that described induction system is connected with knitted body, the far-end of induction system and knitted body, and be bonded together with the glue with biocompatibility.Method or the machinery that the electricity consumption of described knitted body system is freed is separated desorption method, pressure solution desorption method separates knitted body with induction system, thereby with in the knitted body implant into body.Described knitted body and induction system can reclaim knitted body in the sheath pipe before freeing, and readjust again release behind the position.Described knitted body system is compressed in the sheath pipe, and simultaneously, the sheath pipe box is lived the induction system of the overwhelming majority.Described knitted body system can be 0.017 inch microtubular inner chamber smoothly by minimum diameter, and is transported to aneurysm pathological tissues place by this microtubular.

Compared with prior art, the present invention has following beneficial effect:

In effective aneurysmal while of thromboembolism, reduce in the operation requirement to doctor individual embolization skills, and reduce the operating time of operation, reduce the impact to the aneurysm top, the interference that minimizing is flowed to carrying the tumor vessel inner blood further improves aneurysm thromboembolism clinical effectiveness.Its lageniform double-deck sphere structure is conducive to reduce the impact to the aneurysm top.

Description of drawings

Fig. 1 is the overall structure schematic diagram of knitted body system;

Fig. 2 is the aneurysm schematic diagram;

Fig. 3 is that microtubular arrives the diseased region schematic diagram;

Fig. 4 is that the knitted body system enters aneurysm schematic diagram (before the knitted body automatic expansion);

Fig. 5 is knitted body dispose procedure schematic diagram (in the knitted body expansion process) in aneurysm;

Fig. 6 is knitted body complete expansion schematic diagram (behind the knitted body automatic expansion) in aneurysm;

Fig. 7 is that the implanted aneurysm schematic diagram of rear knitted body is taken off in electrolysis;

Fig. 8 is the knitted body schematic diagram of the double-deck sphere structure of calabash shaped;

Fig. 9 is knitted body and induction system junction schematic diagram;

Figure 10 is knitted body inner tensile filament schematic diagram;

Figure 11 is that the sheath pipe only enters microtubular handle schematic diagram;

Figure 12 is that the sheath pipe only enters in the microtubular handle situation knitted body system and enters aneurysm and show

Intention (before the knitted body automatic expansion);

Figure 13 is that the sheath pipe only enters that knitted body discharges in the microtubular handle situation in aneurysm

Process schematic diagram (in the knitted body expansion process);

Figure 14 be the sheath pipe only enter in the microtubular handle situation knitted body in aneurysm fully

Expansion schematic diagram (behind the knitted body automatic expansion);

Figure 15 is for utilizing knitted body thromboembolism sidewall aneurysm schematic diagram.

Among the figure: knittedbody 1,induction system 2,annulus 3,glue 4,sheath pipe 5, microtubular 6,aneurysm lesion 7,free instrument 8.

The specific embodiment

Below in conjunction with drawings and Examples essentiality content of the present invention is described in further detail:

Embodiment one: utilize the non-sidewall aneurysm of knitted body system thromboembolism tremulous pulse.Extremely shown in Figure 9 such as Fig. 1, a kind of novel aneurysmal knitted body of thromboembolism system that is used for, comprise netted knittedbody 1, theinduction system 2 that is connected with knitted body, be positioned over theannulus 3 of the macromolecular material between knitted body and the delivery guidewire, theglue 4 that is used for bonding also has knitted body is compressed in interior sheath pipe 5.Microtubular 6 entersaneurysm lesion 7, and whole knitted body system advances at microtubular 6 inner chambers subsequently, until its far-end arrives aneurysm tumor mouth.Keepsheath pipe 5 motionless, promoteinduction system 2 forward, so that knittedbody 1 moves in aneurysm gradually.In this process, knitted body can continuous automatic expansion.Along with whole knittedbody 1 is pushed out outside thesheath pipe 5, knittedbody 1 will be released in theaneurysm 7 fully.Then start be connected to the induction system near-endfree instrument 8 so that the junction point fusing ofinduction system 2 and knittedbody 1, soinduction system 2 is separated with knitted body 1.Induction system 2 andsheath pipe 5 are withdrawn to outside the patient body, stay knittedbody 1 inaneurysm 7 to make thromboembolism.This knittedbody 1 is lageniform double-deck sphere structure, is conducive to reduce the impact to the aneurysm top.The knitted body bottom flat, and be rolled in knitted body inside with the coupling part of induction system by receipts, namely this coupling part is not projected into the knitted body outside.This structure is conducive to knitted body bottom and is identical with carrying a tumor blood vessel, and does not fall into the flow direction of carrying tumor blood vessel internal interference blood flow with the coupling part of induction system.Beforeinstrument 8 was freed in startup,induction system 2 can not separated with knitted body 1.Find the knitted body system that needs to adjust the position or change other specifications in the process ofaneurysm 7 if discharge knittedbody 1, theinduction system 2 of can directly dropping back, thereby knittedbody 1 is recovered in thesheath pipe 5 again, again gets final product by above step operation after readjusting the position of apparatus or changing the knitted body system of appropriate size.Wherein Fig. 8 has shown the calabash shaped double-decker of knitted body, and Fig. 9 has shown the detailed structure of knitted body and induction system junction; Figure 10 has shown the tension filament (knitted body has only shown profile) of knitted body inside, and this filament can prevent effectively that knitted body from excessively being stretched when compressive state.

Embodiment two: as shown in figure 11, for the use of sheath pipe, also can be only used as making knitted body in the compressive state enter into the transition instrument of microtubular.Shown in Figure 12 to 14, in this case, the handle portion that the sheath pipe only need to enter microtubular gets final product, and the knitted body in the compressive state will directly advance in the inner chamber of microtubular.Follow-up dispose procedure is the same with dispose procedure among the embodiment one, repeats no more herein.

Embodiment three: utilize knitted body system thromboembolism arterial side mural aneurysm.As shown in figure 15, utilize knitted body system thromboembolism arterial side mural aneurysm and the non-sidewall aneurysm of thromboembolism process substantially similar, repeat no more herein.

Claims (10)

1. one kind is used for the aneurysmal knitted body of thromboembolism system, comprise netted knitted body and the induction system that is connected with knitted body, it is characterized in that: be the double-deck sphere structure of calabash shaped after described knitted body discharges, the knitted body bottom flat, and place knitted body inner with the coupling part of induction system, namely this coupling part is not projected into the knitted body outside.

2. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: be provided with the tension filament that connects bottom and top in the described knitted body.

3. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: described knitted body is formed by platinum wire and staggered mixed the knitting of titanium-nickel wire, and the ratio of platinum wire and titanium-nickel wire is adjusted in the fabrication stage according to the development effect of this knitted body.

4. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: described knitted body is that platinum wire, skin are that the two-layer compound seal wire of niti material consists of by SMIS, and the thickness proportion of platinum and NiTi is adjusted in the fabrication stage according to the development effect of this knitted body.

5. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: the knitted body after the release can manufacture different size in advance to cooperate aneurysm and the pathological tissues of different sizes, form, tumor neck breadth degree.

6. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: the position that described induction system is connected with knitted body, be provided with the annulus of a macromolecular material between the far-end of induction system and the knitted body bottom, and be bonded together with the glue with biocompatibility.

7. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: method or the machinery that the electricity consumption of described knitted body system is freed is separated desorption method, pressure solution desorption method separates knitted body with induction system, thereby with in the knitted body implant into body.

8. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: described knitted body and induction system can reclaim knitted body in the sheath pipe before freeing, and readjust again release behind the position.

9. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: described knitted body system is compressed in the sheath pipe, and simultaneously, the sheath pipe box is lived the induction system of the overwhelming majority.

10. according to claim 1 a kind of for the aneurysmal knitted body of thromboembolism system, it is characterized in that: described knitted body system can be 0.017 inch microtubular inner chamber smoothly by minimum diameter, and is transported to aneurysm pathological tissues place by this microtubular.

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