CN216294173U

CN216294173U - Balloon structure and intracranial implantation mechanism

Info

Publication number: CN216294173U
Application number: CN202122389136.4U
Authority: CN
Inventors: 王格; 刘斌
Original assignee: Shanghai Li Kai Technology Co ltd
Current assignee: Shanghai Li Kai Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-15
Anticipated expiration: 2031-09-29

Abstract

The application relates to a balloon structure and an intracranial implantation mechanism, which comprises an inflatable implantation balloon and a connecting piece; a closed valve is arranged in the implantation sacculus, an opening is formed in one side of the implantation sacculus, and the opening of the implantation sacculus is closed after the closed valve is closed; the connecting piece is hollow and is in a column shape with openings at two ends, the connecting piece is fixed on the outer wall of the opening side of the implanted saccule, and the opening of the connecting piece covers the opening of the implanted saccule; the inner wall of the connecting piece is provided with more than two clamping grooves, the more than two clamping grooves are arranged around the inner wall of the connecting piece in the circumferential direction, and the more than two clamping grooves are suitable for being clamped with an implanting mechanism. Balloon structures and intracranial implantation mechanisms.

Description

Balloon structure and intracranial implantation mechanism

Technical Field

The application relates to the field of medical equipment, in particular to a balloon structure and an intracranial implantation mechanism.

Background

Intracranial aneurysms, which at the beginning of the unbroken period, press on nervous tissue, and aneurysms in different locations cause corresponding symptoms in the case, for example, pressing on the optic nerve leads to a dark shadow in the visual field, which is severe to blindness. Subarachnoid hemorrhage due to rupture of the aneurysm is said to trigger stroke. Intracranial aneurysm treatment means is divided into surgical clipping and interventional treatment, and considering that old patients are slow to heal after craniotomy, interventional treatment methods are often adopted. The interventional therapy device is also divided into auxiliary support auxiliary spring coil packing, blood flow guiding device therapy, braided fabric packing and the like.

When the auxiliary support frame is adopted for filling, the auxiliary support frame is required to be removed for a plurality of times due to the need of filling the coil for a plurality of times, the time consumption is long, and the auxiliary support frame can be filled in place at one time by adopting a braided fabric filling mode. However, when the braid is now packed, the connection reliability of the braid is still not high.

Disclosure of Invention

In view of the above, the present application provides a balloon structure and an intracranial implantation mechanism, and the balloon structure and the intracranial implantation mechanism

According to an aspect of the present application, there is provided a balloon structure comprising an inflatable implant balloon and a connector;

a closed valve is arranged in the implantation sacculus, an opening is formed in one side of the implantation sacculus, and the opening of the implantation sacculus is closed after the closed valve is closed;

the connecting piece is hollow and is in a column shape with openings at two ends, the connecting piece is fixed on the outer wall of the opening side of the implanted saccule, and the opening of the connecting piece covers the opening of the implanted saccule;

the inner wall of the connecting piece is provided with more than two clamping grooves, the more than two clamping grooves are arranged around the inner wall of the connecting piece in the circumferential direction, and the more than two clamping grooves are suitable for being clamped with an implanting mechanism.

In one possible implementation, the implantation balloon and the connecting member are both degradable implantation polymer materials.

In one possible implementation, the implantation balloon and the connecting member are both made of PTFE.

In one possible implementation, the closed valve includes a first valve and a second valve;

the first valve and the second valve are arranged at the opening of the implantation balloon, and the first valve and the second valve are respectively positioned at two opposite sides of the opening of the implantation balloon, so that the first valve and the second valve are attached when liquid is injected into the implantation balloon.

In a possible implementation manner, the implantation balloon and the connecting piece are connected by laser welding or bonding.

In a possible implementation manner, the sphere diameter D1 after the implantation balloon is inflated has a value range of: d1 is more than or equal to 3mm and less than or equal to 20 mm;

the connecting piece be cylindric, the big footpath D2's of connecting piece value range does: d2 is not less than 0.3mm and not more than 1 mm.

In one possible implementation, the opening of the implantation balloon and the inner cavity of the connector are coaxially arranged.

In a possible implementation manner, the connecting piece is cylindrical, and the clamping grooves are distributed around the inner wall circumference of the connecting piece by taking the central axis of the connecting piece as an axis.

According to another aspect of the application, an intracranial implantation mechanism is provided, which is used for implanting the balloon structure in cranium and comprises a connecting pipe, a clamping piece and a push rod;

the clamping piece is arranged on one side of the connecting pipe and is provided with elasticity;

the clamping piece is hollow, and gradually shrinks towards the inside of the clamping piece from one side of the clamping piece close to the connecting pipe to one side of the clamping piece far away from the connecting pipe;

the pushing rod is hollow inside, and openings are formed in the two ends of the pushing rod;

one end of the push rod can penetrate through the inner cavity of the connecting pipe, the inner cavity of the clamping piece and the opening of the implanted saccule;

when the push rod penetrates through the inner cavity of the clamping piece, the clamping piece expands, and the clamping piece is clamped with the clamping groove in the connecting piece;

when the push rod is separated from the inner cavity of the clamping piece, the clamping piece contracts, and the clamping piece is separated from the clamping groove in the connecting piece.

In a possible implementation manner, the clamping piece comprises more than two clamping claws, and the number of the clamping claws is matched with that of the clamping grooves; and is

The clamping jaws are arranged along the inner circumference of the connecting pipe, and the clamping jaws are enclosed to form a conical structure;

the clamping claws are clamped with the clamping grooves in one-to-one correspondence.

The balloon structure of the embodiment of the application is provided with the implanted balloon and the connecting piece, wherein after liquid is introduced into the implanted balloon through the opening of the implanted balloon, the implanted balloon can be expanded, and aneurysm embolism is filled. And the closed valve implanted in the balloon can be closed due to the internal pressure of the balloon, and the opening of the implanted balloon is closed, so that the internal liquid implanted in the balloon cannot overflow. Set up the connecting piece on the outer wall of implanting the sacculus, set up the draw-in groove on the connecting piece, can accomplish the joint through the setting of draw-in groove and the implantation mechanism that has the joint piece from this for implant the sacculus and can be connected with implantation mechanism through the mode of mechanical connection, make its connected mode more stable, the phenomenon of breaking away from of implanting the sacculus when implanting can not appear.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

FIG. 1 is a body diagram illustrating a balloon structure and a balloon of an intracranial implant mechanism in an unfilled state according to an embodiment of the present application;

FIG. 2 is a body structure diagram illustrating a balloon structure and an implanted balloon inflation state of an intracranial implant mechanism according to an embodiment of the present application;

FIG. 3 is another body structure diagram illustrating a balloon structure and an implanted balloon inflation state of an intracranial implant mechanism in accordance with an embodiment of the present application;

FIG. 4 is a schematic diagram showing a balloon structure and a separate balloon inflated state of an implanted intracranial implant mechanism, according to an embodiment of the present application;

fig. 5 shows a balloon structure and an implanted balloon structure of an intracranial implant mechanism according to an embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing or simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

Fig. 1 shows a body structure view of a balloon structure and a balloon-inflated state of an intracranial implant mechanism according to an embodiment of the present application. Fig. 2 shows a main body structure diagram of a balloon structure and an implanted balloon filling state of an intracranial implant mechanism according to an embodiment of the present application. Fig. 3 shows another body structure diagram of the balloon structure and the inflated state of the implanted balloon of the intracranial implantation mechanism according to the embodiment of the present application. Fig. 4 shows a schematic diagram of a balloon structure and a separate balloon inflated state of an implanted intracranial implant mechanism, according to an embodiment of the present application. Fig. 5 shows a balloon structure and an implanted balloon structure of an intracranial implant mechanism according to an embodiment of the present application. As shown in fig. 1, fig. 2, fig. 3, fig. 4 or fig. 5, the balloon structure includes an inflatable implantation balloon 100 and a connector 200, the implantation balloon 100 has a closed valve 110 therein and has an opening on one side, and the closed valve 110 is used for closing the opening of the implantation balloon 100 after being closed. The connecting piece 200 is a column with a hollow interior and openings at two ends, the connecting piece 200 is fixed on the outer wall of the implantation sacculus 100 at the side with the opening, and the opening of the connecting piece 200 covers the opening of the implantation sacculus 100. More than two clamping grooves are formed in the inner wall of the connecting piece 200 and are circumferentially arranged around the inner wall of the connecting piece 200, and the more than two clamping grooves are suitable for being clamped with the implanting mechanism.

The balloon structure of the embodiment of the application is provided with an implantation balloon 100 and a connecting piece 200, wherein after liquid is introduced into the implantation balloon 100 through an opening of the implantation balloon 100, the implantation balloon 100 is expanded, and aneurysm embolization is completely filled. And the closed valve 110 implanted in the balloon 100 is closed by the internal pressure of the balloon to close the opening of the implanted balloon 100, so as to ensure that the liquid inside the implanted balloon 100 does not overflow. Set up connecting piece 200 on implanting the outer wall of sacculus 100, set up the draw-in groove on the connecting piece 200, can accomplish the joint through the setting of draw-in groove and the implantation mechanism that has joint piece 400 from this for implant sacculus 100 can be connected with implantation mechanism through the mode of mechanical connection, make its connected mode more stable, the phenomenon of breaking away from of implanting sacculus 100 when implanting can not appear.

Here, it should be noted that in one possible implementation, the fluid flushed into the implanted balloon 100 may be saline that incorporates a portion of the contrast agent for visualizing the volume of balloon filling.

In one possible implementation, both the implantation balloon 100 and the connector 200 are degradable implantation polymer materials. Thereby, the implanted balloon 100 may be made degradable and absorbable by the human body.

Further, in one possible implementation, the implant balloon 100 and the connector 200 are both PTFE.

In one possible implementation, the closed valve 110 includes a first valve 111 and a second valve 112, the first valve 111 and the second valve 112 are both disposed at the opening of the implantation balloon 100, and the first valve 111 and the second valve 112 are respectively located at two opposite sides of the opening of the implantation balloon 100, so that the first valve 111 and the second valve 112 are attached when liquid is injected into the implantation balloon 100. Therefore, the structure of the embodiment of the application is further optimized.

In one possible implementation, the implantation balloon 100 and the connection member 200 are connected by laser welding or bonding.

In one possible implementation, the sphere diameter D1 after the implantation balloon 100 is inflated has a value range of: d1 is more than or equal to 3mm and less than or equal to 20 mm. The connecting piece 200 is round, and the value range of the major diameter D2 of the connecting piece 200 is as follows: d2 is not less than 0.3mm and not more than 1 mm.

In one possible implementation, the opening of the implantation balloon 100 and the internal cavity of the connector 200 are coaxially arranged.

In a possible implementation manner, the connecting member 200 is cylindrical, and the slots are circumferentially distributed around the inner wall of the connecting member 200 by taking the central axis of the connecting member 200 as an axis.

Based on the balloon structure in any one of the preceding paragraphs, the present disclosure also provides an intracranial implantation mechanism. Wherein, the intracranial implantation mechanism of the embodiment of the disclosure is used for implanting the balloon structure of any one of the above into a lesion position in the cranium. The intracranial implantation mechanism of the disclosed embodiment comprises: including connecting pipe 300, joint 400 and propelling movement pole 500, joint 400 sets up in one side of connecting pipe 300, and joint 400 is equipped with elasticity. The inside of the clip 400 is hollow, and the side of the clip 400 adjacent to the connection pipe 300 to the side away from the connection pipe 300 gradually shrinks toward the inside of the clip 400. The inside cavity of push rod 500 sets up, and both ends are equipped with the opening, and the one end of push rod 500 can run through the inside cavity of connecting pipe 300, the inside cavity of joint piece 400 and the opening setting of implanting sacculus 100. When the push rod 500 penetrates through the inner cavity of the clip 400, the clip 400 expands, and the clip 400 is clipped to the clip groove of the connecting member 200. When the push rod 500 is separated from the inner cavity of the clip 400, the clip 400 is contracted, and the clip 400 is separated from the slot of the connecting member 200.

Thus, the intracranial implantation mechanism of the embodiment of the present application is used to place a coil into a lesion in the body to complete the tamponade of the implant balloon 100. The insertion process of the implantation balloon 100 is as follows, the connection member 200 of the implantation balloon 100 is disposed toward the clip member 400, and the clip member 400 is made to protrude into the connection member 200. Then to implanting sacculus 100 one side promotion push rod 500, push rod 500 can strut joint piece 400 for joint piece 400 and connecting piece 200 butt, later continue to promote the lifting lever, will implant sacculus 100 propelling movement to human pathological change position, from this, accomplished the implantation of implanting sacculus 100. The interior of the implantation balloon 100 is then filled with a liquid through the internal channel of the push rod 500, and the implantation balloon 100 is inflated. When the implantation balloon 100 is fully expanded, the push rod 500 is withdrawn, the closure valve 110 is closed, the clamping member 400 is contracted, and the clamping member 400 and the connecting member 200 are separated, thereby completing the separation of the implantation balloon 100 and the intracranial implantation mechanism. The aneurysm embolism only needs one-time filling, the filling volume is controllable, the operation time is greatly shortened, and the operation difficulty and the operation risk are reduced.

In a possible implementation manner, the clamping member 400 includes more than two clamping jaws, the more than two clamping jaws are circumferentially arranged along the inside of the connecting pipe 300, the more than two clamping jaws are surrounded to form a tapered structure, and the clamping jaws are clamped with the clamping grooves in one-to-one correspondence. Therefore, the structure of the embodiment of the application is further optimized.

In one possible implementation, the clamping jaw comprises an elastic connecting part and a clamping boss. The elastic connection portion is arc-shaped and sheet-shaped, one side of the elastic connection portion is matched with the inner wall of the connection pipe 300, and the elastic connection portion is fixed on the inner wall of the connection pipe 300 together with the inner wall of the connection pipe 300. The clamping boss is arranged on the side wall of one side of the elastic connecting portion, which is far away from the connecting pipe 300, and the clamping boss is clamped with the clamping groove.

Here, it should be noted that, in one possible implementation, the elastic connection portion is provided with a relief groove on a side facing the connection pipe 300, and a side of the relief groove facing the inner wall of the connection pipe 300 is matched with the inner wall of the connection pipe 300.

Further, in a possible implementation manner, the cross section of the clamping boss along the central axis of the connecting pipe 300 is any one of a square, an arc, a circle or a triangle.

In one possible implementation, the clip 400 and the connection tube 300 are integrally formed or are welded or bonded.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A balloon structure comprising an inflatable implant balloon and a connector;

2. The balloon structure of claim 1, wherein the implant balloon and the connector are both degradable implant polymer materials.

3. The balloon structure of claim 2, wherein the implantation balloon and the connector are both PTFE.

4. The balloon structure of claim 1, wherein the closed valve comprises a first valve and a second valve;

5. The balloon structure of claim 1, wherein the implantation balloon and the connecting member are connected by laser welding or bonding.

6. The balloon structure according to claim 1, wherein the expanded spherical diameter D1 of the implanted balloon has a value in the range of: d1 is more than or equal to 3mm and less than or equal to 20 mm;

7. The balloon structure of claim 1, wherein the opening of the implantation balloon and the inner cavity of the connector are coaxially disposed.

8. The balloon structure according to claim 1, wherein the connecting member is cylindrical, and the clamping grooves are circumferentially arrayed around the inner wall of the connecting member about the central axis of the connecting member.

9. An intracranial implantation mechanism for implanting the balloon structure of any one of claims 1 to 7 into the cranium, comprising a connecting tube, a snap-in member, and a push rod;

10. The intracranial implant mechanism as recited in claim 9, wherein the clip comprises more than two claws, the number of claws matching the number of slots; and is