CN216724652U - Intracranial support bracket - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to an intracranial support bracket, which comprises a thick rod and a thin rod, wherein the thick rod and the thin rod are connected end to end, and are bent to form a sine wave structure, the thick rod and the thin rod are alternately arranged and are connected and fixed through a connecting component to form a net structure, the thin rods are arranged at two ends of the bracket, a spring ring passes through a gap between the thick rod and the thin rod and is filled in an aneurysm cavity, and the bracket supports the coiled spring ring; the pole is convenient for support self with thin pole sinusoidal wave structure and is stretched, is convenient for support the blood vessel in the blood vessel inside, and the mesh increase between the support can be made to thick pole and thin pole's alternative, and the spring coil of being convenient for passes, and is convenient for support coiled spring coil, avoids the spring coil to spill from aneurysm bottom cavity, promotes the success rate of operation.

Description

Intracranial support bracket

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an intracranial support bracket.

Background

Intracranial aneurysm is a common brain disease, the harm to human body is very big, because intracranial aneurysm is the pathological swelling of intracranial artery wall, it is the first cause of subarachnoid hemorrhage, in cerebrovascular accident, only second to cerebral thrombosis and hypertensive cerebral hemorrhage;

the spring coil embolism treatment is the most common and effective method for treating the aneurysm at present, the method is to release a spring coil into the aneurysm, and embolize the aneurysm through the spring coil to reduce the blood flow in the aneurysm, the treatment process comprises releasing a series of spring coils into the cavity of the aneurysm, the spring coil is filled to cause the subsequent thrombosis in the aneurysm, and finally embolize the aneurysm, so as to achieve the effect of isolating the aneurysm from the blood circulation;

however, the technology is difficult to operate in practice, and has more problems to be overcome, when the wide-neck aneurysm is faced, after the coil is filled in the aneurysm, the coil is easy to leak out of the cavity at the bottom of the aneurysm due to the fact that the opening of the cavity at the bottom of the aneurysm is too wide when the blood vessel contracts;

therefore, when the medical care operating personnel faces the wide-neck aneurysm, the intracranial stent is firstly adopted to preferentially support the blood vessel, and after the spring ring is filled in, the intracranial stent can support the spring ring at the moment, so that the spring ring is prevented from leaking from the cavity at the bottom of the aneurysm, and the success rate of the operation is improved;

however, the intracranial stents used at present are not matched with the spring rings, the developing performance of the intracranial stents is insufficient, medical care operating personnel are not easy to position the intracranial stents when the intracranial stents are released in a patient body, and the spring rings are easy to jump forwards by the propulsion of the spring rings in the process of filling the spring rings into the wide-neck aneurysm after the intracranial stents are released at present, so that the position of the intracranial stents is deviated, and the supporting effect is influenced.

In view of the problems that the current intracranial support bracket is exposed in the using process, the structural improvement and optimization of the intracranial support bracket are needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an intracranial support bracket, have the medical personnel location of being convenient for and release intracranial support, the characteristics of being more convenient for use with the spring coil cooperation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an intracranial support frame, includes thick pole, thin pole, thick pole and the equal end to end connection of thin pole, just thick pole and the equal self bending type of thin pole become sine wave structure, thick pole and thin pole set up in turn, and connect fixedly through coupling assembling and form network structure, and thin pole is all installed to support both ends department, and the spring coil passes and fills in the aneurysm cavity from the gap between thick pole and the thin pole, and the support supports the spring coil of coiling.

As the utility model discloses a preferred technical scheme of intracranial support, coupling assembling includes the connecting rod, and a plurality of the crest position installation of connecting rod perpendicular to thick pole and thin pole.

As the preferable technical scheme of the intracranial supporting bracket of the utility model, every the thick rod and the thin rod are connected through four connecting rods which are evenly distributed.

As the utility model discloses a preferred technical scheme of intracranial support, thick pole round is equipped with 16 crests, thin pole round is equipped with 24 crests.

As the utility model discloses a preferred technical scheme of intracranial support, the both ends department of support all is connected with the development ring through the connecting rod, the development ring adopts platinum iridium metal component, the through-hole has been seted up to the inside of development ring.

As the utility model discloses a preferred technical scheme of intracranial support, supporting structure all adopts nickel titanium alloy one shot forming, and the support outer wall evenly scribbles and is equipped with platinum iridium developing material.

As the preferable technical proposal of the intracranial supporting bracket of the utility model, the two ends of the bracket can be in the shape of the flaring which extends outwards and is opened, and the flaring angle is 15-30 degrees.

As the utility model discloses a preferred technical scheme of intracranial support, additional circle is still installed to support one end, the specification of additional circle and slender pole is unanimous, just additional circle all is connected with the connecting rod with the relative crest department of slender pole.

As the preferred technical scheme of the intracranial supporting bracket of the utility model, when the bracket is compressed, the developing ring is contacted and spliced into a circular component on the side surface.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this intracranial support is connected through thick pole and thin pole, and thick pole and thin pole sinusoidal wave structure be convenient for support self stretch, is convenient for support the blood vessel at the inside blood vessel, and thick pole and thin pole's alternation can make the mesh increase between the support, and the spring coil of being convenient for passes, and is convenient for support the spring coil of coiling, avoids the spring coil to spill from aneurysm bottom cavity, promotes the success rate of operation.

2. The both ends of support have increased and have developed the ring, and the position can be looked over through development equipment to the medical personnel of being convenient for when carrying to develop the ring, and the medical personnel operation of being convenient for is also convenient for to the support body.

3. The both ends of support can be for the flaring form, when the both ends of support opened, can be so that the support remains stable at intravascular portion, avoid the support at intravascular portion displacement, promote the stability of support, and the support is when supporting the spring coil, avoids the spring coil to spill from aneurysm bottom cavity, avoids the patient to relapse from aneurysm disease.

Drawings

In order that the present invention may be more clearly understood, the following detailed description is given with reference to the accompanying drawings.

Fig. 1 is a schematic view of the bracket structure of the present invention;

FIG. 2 is a schematic view of the shape and structure of the flaring at both ends of the middle support of the present invention;

fig. 3 is a schematic structural view of the bracket according to the present invention when retracted;

FIG. 4 is a schematic view of the line structure A-A of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the structure of the spring ring of the present invention when it is inserted into an aneurysm through the stent;

FIG. 6 is a schematic structural view of the spring ring after the completion of filling;

FIG. 7 is a schematic cross-sectional view of the spring coil of the present invention passing through the stent mesh;

in the figure: 1. a thick rod; 2. a thin rod; 3. a connecting rod; 4. adding a ring; 5. a developing ring; 6. a through hole; 7. a spring ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1-7, the utility model discloses an intracranial support, including thick pole 1 and thin pole 2, thick pole 1 and the equal end to end connection of thin pole 2, and thick pole 1 and the equal self sinusoidal wave structure of bending type of thin pole 2, thick pole 1 sets up with thin pole 2 in turn, and connect fixedly through coupling assembling and form network structure, thin pole 2 is all installed to support both ends department, spring coil 7 passes and fills in the aneurysm cavity in the gap between thick pole 1 and the thin pole 2, the support supports coiled spring coil 7, the support external diameter in this embodiment is 2-5mm, support length is 15-40mm, thick pole 1 size is 0.07 +/-0.01, thin pole 2 size is 0.04 +/-0.01.

Specifically, coupling assembling includes connecting rod 3, and the crest position installation of the thick pole 1 of a plurality of connecting rod 3 perpendicular to and thin pole 2, and connecting rod 3 is used for connecting thick pole 1 and thin pole 2 in this embodiment, promotes the gap between thick pole 1 and the thin pole 2 simultaneously.

Specifically, each thick rod 1 is connected with the thin rod 2 through four connecting rods 3 which are uniformly distributed.

Specifically, 16 wave crests are arranged in one circle of the thick rod 1, 24 wave crests are arranged in one circle of the thin rod 2, the stent shortening rate is controlled to be 2.9-6.3% in the embodiment, and the metal coverage rate of the stent is 6.0-12.0%.

Specifically, both ends of the bracket are connected with a developing ring 5 through a connecting rod 3, the developing ring 5 is a platinum-iridium metal member, and a through hole 6 is formed in the developing ring 5.

Specifically, the supporting structure all adopts nickel titanium alloy one shot forming, and the support outer wall evenly scribbles and is equipped with platinum iridium development material, and development material more is convenient for medical personnel in this embodiment and observes the position at present support place through developing device, and the medical personnel propelling movement support of being convenient for.

Specifically, the two ends of the stent can be flared by extending outwards, and the flaring angle is 15-30 degrees, so that the stent can be kept stable in the blood vessel when the two ends of the stent are flared outwards, and the stent is prevented from sliding.

Specifically, additional circle 4 is still installed to support one end, and additional circle 4 is unanimous with the specification of slender pole 2, and additional circle 4 all is connected with connecting rod 3 with the crest department that slender pole 2 is relative, and the expansibility of the further promotion support tip of additional circle 4 in this embodiment, the support of being convenient for forms open structure.

Specifically, the one end of support all is equipped with three development ring 5, and during the support compression, 5 side contacts of development ring and concatenation are circular component, and development ring 5 avoids causing the damage to the vascular inner wall when splicing into circularly in this embodiment.

The utility model discloses a theory of operation and use flow: the intracranial support bracket of the utility model is conveyed through the micro catheter, the support bracket is arranged inside the micro catheter, when the micro catheter is conveyed to the position of intracranial aneurysm, the micro catheter is withdrawn to release the intracranial support bracket inside the micro catheter, and the intracranial support bracket reaches the position of lesion;

the intracranial support is composed of a thick rod 1 and a thin rod 2, the thick rod 1 and the thin rod 2 are connected end to end and folded into a zigzag structure, the structure is convenient for the support to stretch longitudinally and transversely, the thick rod 1 is thicker than the thin rod 2, the structural strength of the support is favorably improved, blood vessels are conveniently supported, the thin rod 2 serves as an auxiliary supporting member in the support and bears auxiliary supporting force and provides flexibility, the thick rod 1 and the thin rod 2 are connected through a connecting rod 3, a circle is evenly distributed, 4 connecting points are arranged on the circle, the connecting rod 3 gives larger spring rings 7 in the support through space, the spring rings 7 can penetrate through gaps between the connecting rod 3 and the thick rod 1 and the thin rod 2 conveniently, the interference of the spring rings 7 on the intracranial support in the penetrating process is reduced, and the stability of the support is improved;

and then expanding the intracranial support stent by the air bag on the inner side of the intracranial support stent, wherein the expansion rate of two ends of the air bag is larger, and the two ends of the intracranial support stent are expanded outwards, so that the two ends of the intracranial support stent are in an expanding state, the expanding angle is 15-30 degrees, the intracranial support with the two ends expanded can further improve the structural stability of the stent in the blood vessel, the displacement of the intracranial support stent caused in the blood flowing process is avoided, in the subsequent spring ring 7 releasing process, the spring ring 7 is prevented from pushing the intracranial support stent to displace, the spring ring 7 is convenient to support subsequently, the spring ring 7 is prevented from leaking from the cavity at the bottom of the aneurysm, and the success rate of the operation is improved.

The above mentioned is only the preferred embodiments of the present invention, not as the further limitation of the present invention, and all the equivalent changes made by using the contents of the specification and the drawings of the present invention are within the protection scope of the present invention.

Claims (9)

1. An intracranial support stent comprising a thick rod (1) and a thin rod (2), characterized in that: thick pole (1) and thin pole (2) equal end-to-end connection, just thick pole (1) and thin pole (2) equal self bending type sine wave structure, thick pole (1) and thin pole (2) set up in turn, and connect through coupling assembling and fix and form network structure, and thin pole (2) are all installed to support both ends department, and spring coil (7) pass and fill in the aneurysm cavity from the gap between thick pole (1) and thin pole (2), and the support supports coiled spring coil (7).

2. An intracranial support bracket as recited in claim 1, wherein: the connecting assembly comprises a plurality of connecting rods (3), and the connecting rods (3) are perpendicular to the wave crest positions of the thick rod (1) and the thin rod (2).

3. An intracranial support bracket as recited in claim 1, wherein: each thick rod (1) is connected with the thin rod (2) through four connecting rods (3) which are uniformly distributed.

4. An intracranial support bracket as recited in claim 1, wherein: 16 wave crests are arranged in one circle of the thick rod (1), and 24 wave crests are arranged in one circle of the thin rod (2).

5. An intracranial support bracket as recited in claim 1, wherein: both ends department of support all is connected with development ring (5) through connecting rod (3), development ring (5) adopt platinum iridium metal component, through-hole (6) have been seted up to the inside of development ring (5).

6. An intracranial support bracket as recited in claim 1, wherein: the support structure is formed by nickel-titanium alloy in one step, and platinum-iridium developing materials are uniformly coated on the outer wall of the support.

7. An intracranial support bracket as recited in claim 1, wherein: the two ends of the bracket can be in flaring shapes which extend outwards and are flared, and the flaring angles are 15-30 degrees.

8. An intracranial support bracket as recited in claim 1, wherein: an additional ring (4) is further installed at one end of the support, the additional ring (4) is consistent with the thin rod (2) in specification, and connecting rods (3) are connected to wave crests of the additional ring (4) opposite to the thin rod (2).

9. An intracranial support bracket as in claim 5, wherein: when the bracket is compressed, the side surfaces of the developing rings (5) are contacted and spliced into a circular component.

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