CN114225186B

CN114225186B - Adjustable balloon catheter

Info

Publication number: CN114225186B
Application number: CN202111535679.0A
Authority: CN
Inventors: 王艳红; 吴儒全
Original assignee: Shenzhen Yuanwei Medical Technology Co ltd
Current assignee: Shenzhen Yuanwei Medical Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-08-16
Anticipated expiration: 2041-12-15
Also published as: CN114225186A

Abstract

The invention discloses an adjustable balloon catheter, which comprises a catheter, wherein a first conducting hole and a second conducting hole are arranged in the catheter side by side; an inner balloon connected to the distal end of the catheter and in communication with the first via; the outer balloon is sleeved outside the inner balloon, is connected to the far end of the catheter and is communicated with the second through hole; the adjustable valve is arranged at the near end of the catheter and is used for controlling the opening and closing of the first through hole and/or the second through hole. The compression form formed by the inner balloon and the outer balloon can adapt to self tissue structure, the compression form after the compression form enters the human body is various, the effect is various, the pressure can be adjusted adaptively according to the difference of the tissue structure, the application range is wide, the applicability is strong, and the treatment effect is good.

Description

Can regulate and control sacculus pipe

Technical Field

The invention relates to the field of medical instruments, in particular to an adjustable balloon catheter.

Background

Trigeminal neuralgia, which is considered as a severe painful disease in humans, is characterized by severe facial paroxysmal pain at the onset, and the onset is frequent, which seriously affects the quality of life of patients. The prevalence rate of trigeminal neuralgia is 182/10 thousands of people, so the patients are more common in the middle-aged and the elderly. Trigeminal neuralgia is divided into primary trigeminal neuralgia and secondary trigeminal neuralgia, the latter mainly refers to organic lesions existing in or around trigeminal nerve, and is mainly caused by cerebellar space-occupying lesions, semilunar ganglion space-occupying lesions and vascular malformations. The etiology and pathogenesis of primary trigeminal neuralgia are unknown, and the disease is generally considered to be related to demyelination of nerve roots or brain stem parts of trigeminal sensory roots. This demyelination is primarily due to compression of adjacent arterial or venous vessels, and may be due to multiple sclerosis or other causes. When the nerve root of the trigeminal neuralgia patient stressed by the blood vessel is explored in the operation, the demyelination of the stressed part can be found. Experimental studies have demonstrated that spontaneous abnormal nerve impulses caused by anatomical changes associated with vascular compression can be transmitted to adjacent nerve fibers, and that pain disappears almost immediately after vascular compression is relieved, as has also been clinically proven.

The primary trigeminal neuralgia treatment methods comprise percutaneous trigeminal ganglion temperature control radio frequency thermal coagulation treatment, percutaneous trigeminal ganglion micro-balloon compression, adriamycin, alcohol or glycerol trigeminal ganglion blocking treatment, trigeminal peripheral branch avulsion, trigeminal sensory root cutting, trigeminal root microvascular decompression, stereotactic radiosurgery gamma-knife treatment and the like, and various treatment means have certain curative effect.

The percutaneous minimally invasive treatment has the advantages of simple operation and small wound. The trigeminal nerve root microvascular decompression is considered to be the only treatment method aiming at one cause at present, and the clinical curative effect is widely accepted; the percutaneous trigeminal ganglion micro-balloon compression method can keep the integrity of the physiological structure of the trigeminal nerve without damaging the nerve, thereby not influencing the normal feeling of the face.

The procedure is performed using a Fogarty thrombectomy balloon catheter in the existing treatment procedure, and individually using a minimally invasive balloon catheter. However, the existing Fogarty thrombus-taking balloon catheter or minimally invasive balloon catheter applied to trigeminal nerve is a single balloon catheter, and the patient enters the semilunar node to compress the semilunar node after X-ray puncture, so that the single balloon has a single rigid structure, the compression mode is not targeted, pressure can be applied only according to a preset single balloon shape but cannot be directionally increased, and the using effect is poor.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide an adjustable balloon catheter, which solves the problem of poor effect caused by single compression effect and non-adjustable fixed pressure formed by a single balloon of the catheter in the prior art.

The technical scheme of the invention is as follows:

an adjustable balloon catheter comprising: the guide pipe is internally provided with a first through hole and a second through hole in parallel;

an inner balloon connected to the distal end of the catheter and in communication with the first via;

the outer balloon is sleeved outside the inner balloon, is connected to the far end of the catheter and is communicated with the second through hole;

and the adjustable valve is arranged at the near end of the catheter and is used for controlling the opening and closing of the first through hole and/or the second through hole.

Further, the adjustable valve comprises: a valve body connected to the proximal end of the catheter, one side of the valve body being provided with a rotation hole, an

The rotary valve core is rotatably arranged in the rotary hole of the valve body;

a first inlet and outlet hole and a second inlet and outlet hole are formed in the inner wall of the rotary hole in parallel, extend along the radial direction and are used for being communicated with an external filling pipe;

a first air containing cavity and a second air containing cavity which are not communicated with each other are arranged on the rotary valve core along the direction of the rotation axis, the first air containing cavity is communicated with the first via hole, and the second air containing cavity is communicated with the second via hole;

a first inner bag adjusting hole and a second inner bag adjusting hole penetrate through the inner wall of the first air containing cavity along the radial direction, and a first outer bag adjusting hole and a second outer bag adjusting hole penetrate through the inner wall of the second air containing cavity along the radial direction;

through the rotation of the rotary valve core, the first inner bag adjusting hole and the second inner bag adjusting hole are respectively communicated with or staggered with the first inlet and outlet hole, and the first outer bag adjusting hole and the second outer bag adjusting hole are respectively communicated with or staggered with the second inlet and outlet hole.

Furthermore, a first guide groove and a second guide groove are formed in the inner wall of the rotary hole in the circumferential direction and are arranged side by side, a through hole is formed in the first guide groove and communicated with the first via hole, and a through hole is formed in the second guide groove and communicated with the second via hole;

the first air containing cavity is communicated with the first diversion trench through a through hole arranged in the radial direction, and the second air containing cavity is communicated with the second diversion trench through a through hole arranged in the radial direction;

through the rotation of the rotary valve core, the first inner bag adjusting hole and the second inner bag adjusting hole are respectively communicated with the first inlet and outlet hole, and the first outer bag adjusting hole and the second outer bag adjusting hole are respectively communicated with the second inlet and outlet hole.

Further, on a cross section where the rotation axis of the rotary valve core is perpendicular to each other, an orthographic projection of the first inner bag adjusting hole, an orthographic projection of the second inner bag adjusting hole and an orthographic projection of the first outer bag adjusting hole are located at different positions on the circumference of the rotary valve core, and the positions of the second inner bag adjusting hole and the second outer bag adjusting hole are overlapped.

Furthermore, a T-shaped groove is formed at the bottom of the rotary hole;

one end of the rotary valve core is provided with a plurality of hooks which are arranged at intervals around the circumference of the rotary valve core;

the hook is embedded in the T-shaped groove.

Furthermore, one end of the rotary valve core protruding out of the rotary hole is provided with a knob part.

Further, another structure of the adjustable valve includes: a valve body connected to the proximal end of the catheter, the valve body having a sliding groove therein, an

The pushing valve core is arranged in a sliding groove of the valve body in a sliding manner;

a third inlet and outlet hole, a fourth inlet and outlet hole, a fifth inlet and outlet hole and a sixth inlet and outlet hole are formed in the inner wall of the sliding groove, the third inlet and outlet hole and the fourth inlet and outlet hole are used for communicating an external filling pipe, the fifth inlet and outlet hole is communicated with the first conducting hole, and the sixth inlet and outlet hole is communicated with the second conducting hole;

a third air containing cavity and a fourth air containing cavity which are not communicated with each other are arranged on the push valve core, the third air containing cavity and the fourth air containing cavity are arranged on two sides in the radial direction, a first hole, a second hole and a third hole are respectively formed in the third air containing cavity along the push direction of the push valve core, and a fourth hole, a fifth hole and a sixth hole are respectively formed in the fourth air containing cavity along the push direction of the push valve core;

through the sliding of the pushing valve core, the fourth inlet and outlet hole is communicated with the fifth hole, and the sixth inlet and outlet hole is communicated with the fourth hole, or

The third inlet and outlet hole is communicated with the second hole, the fifth inlet and outlet hole is communicated with the first hole, the fourth inlet and outlet hole is communicated with the sixth hole, and the sixth inlet and outlet hole is staggered with the fifth hole, or

The third inlet and outlet bore is in communication with the third bore, and the fifth inlet and outlet bore is in communication with the second bore.

Further, the inner balloon and the outer balloon are both inflated and form a first inflated shape comprising a distal inflated portion, a proximal inflated portion, and an intermediate deflated portion connecting the distal inflated portion and the proximal inflated portion, wherein the profile diameter of the intermediate cross-section of the proximal inflated portion and the profile diameter of the intermediate cross-section of the distal inflated portion are both greater than the profile diameter of the intermediate cross-section of the intermediate deflated portion; or

The inner balloon is contracted and the outer balloon is inflated to form a second filling shape, wherein the second filling shape comprises a far-end contraction part and a near-end expansion part, and the contour diameter of the middle section of the near-end expansion part is larger than that of the middle section of the far-end contraction part; or

The inner balloon is inflated and the outer balloon is deflated to form a third inflated shape which comprises a distal inflated portion and a proximal deflated portion, wherein the profile diameter of the middle section of the distal inflated portion is larger than the profile diameter of the middle section of the proximal deflated portion.

Further, the adjustable balloon catheter further comprises: the filling handle is connected to one end, away from the catheter, of the adjustable valve and communicated with the adjustable valve;

the near end of the filling handle is provided with a connecting position and is used for connecting an external filling pipe.

Further, the distal end of the catheter is provided with a visualization ring.

Furthermore, scales are arranged on the pipe body of the conduit.

Has the advantages that: compared with the prior art, the adjustable balloon catheter provided by the invention has the advantages that the balloon catheter is placed into the port of the Mylar sac through the puncture needle, the first through hole and the second through hole are opened or closed through the adjustable valve according to different tissue structure shapes of the port of the Mylar sac of each person, so that the inner balloon and/or the outer balloon are respectively filled with media or discharged with the media, the filled inner balloon and the filled outer balloon are combined to form different filling shapes, the different filling shapes are matched with different tissue structures, and the trigeminal nerve meniscus is subjected to adaptive compression to play a role in treating trigeminal neuralgia. The compression form formed by the inner balloon and the outer balloon can adapt to self tissue structure, the compression form after the compression form enters the human body is various, the effect is various, the pressure can be adjusted adaptively according to the difference of the tissue structure, the application range is wide, the applicability is strong, and the treatment effect is good. After operation, the liquid in the outer balloon and the inner balloon is emptied and withdrawn into the balloon catheter, and the operation point is subjected to transient compression hemostasis. The invention has the advantages of ingenious structure, obvious effect of applying different pressures in multiple directions, low production cost and good compression effect on the semilunar junction of the trigeminal nerve.

Drawings

FIG. 1 is a schematic structural view of an embodiment of an adjustable balloon catheter according to the present invention;

FIG. 2 is a cross-sectional view of an adjustable valve of an embodiment of an adjustable balloon catheter of the present invention;

FIG. 3 is a schematic structural view of another configuration of an embodiment of a controllable balloon catheter of the present invention;

FIG. 4 is a cross-sectional view of another configuration of an embodiment of a steerable balloon catheter in accordance with the present invention;

FIG. 5 is a cross-sectional view of a valve body of another configuration of an embodiment of a steerable balloon catheter in accordance with the present invention;

FIG. 6 is a schematic diagram of a rotatable valve cartridge of another configuration of an embodiment of a controllable balloon catheter of the present invention;

FIG. 7 is a cross-sectional view of a rotating cartridge in another configuration of an embodiment of a steerable balloon catheter in accordance with the present invention;

FIG. 8 is a cross-sectional view of different axial positions of a rotating spool in an alternative configuration of an embodiment of a steerable balloon catheter in accordance with the invention;

FIG. 9 is a diagram of different shapes of filling states of an embodiment of an adjustable balloon catheter of the present invention;

fig. 10 is a further shape inflation diagram of an embodiment of a steerable balloon catheter of the present invention.

The reference numbers in the figures: 100. a conduit; 110. a first via hole; 120. a second via hole; 130. an extension pipe; 200. an inner balloon; 300. an outer balloon; 310. a first developing ring; 320. a second developing ring; 330. a third developing ring; 400. an adjustable valve; 410. a valve body; 412. a sliding groove; 413. a third inlet and outlet hole; 414. a fourth access hole; 415. a fifth access hole; 416. a sixth access hole; 420. pushing the valve core; 421. a third air containing cavity; 422. a fourth gas containing cavity; 423. a first hole; 424. a second hole; 425. a third aperture; 426. a fourth aperture; 427. a fifth aperture; 428. a sixth hole; 430. a valve body; 431. hole turning; 432. a first access hole; 433. a second access hole; 434. a first diversion trench; 435. a second guiding gutter; 436. a T-shaped slot; 440. rotating the valve core; 441. a first air containing cavity; 442. a second air containing cavity; 443. a first inner bladder adjustment aperture; 444. a second inner bladder adjustment aperture; 445. a first outer bladder adjustment aperture; 446. a second outer bladder adjustment aperture; 447. a hook; 448. a knob portion; 500. filling the handle; 510. a connection bit; 600. a first filling state; 610. a second filling state; 620. and a third filling state.

Detailed Description

The invention provides an adjustable balloon catheter, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, 3 and 4, the present embodiment provides an adjustable balloon dilation catheter 100 apparatus, which mainly includes: catheter 100, inner balloon 200, outer balloon 300, and adjustable valve 400. The catheter 100 is a long circular tube extending along the axial direction thereof, and for convenience of structural description, the end extending axially into the human body is used as the distal end, and the end held by the user is used as the proximal end. The duct 100 is provided with a first via hole 110 and a second via hole 120 side by side, and both the first via hole 110 and the second via hole 120 are arranged along the extending direction of the duct 100. The inner balloon 200 is attached to the distal end of the catheter 100 and communicates with the first via 110. The outer balloon 300 is sleeved outside the inner balloon 200, connected to the distal end of the catheter 100, and communicated with the second via hole 120. After the catheter 100 with the inner balloon 200 and the outer balloon 300 is inserted into the human body, the inner balloon 200 is inflated by introducing the inflation medium into the first through hole 110, the outer balloon 300 is inflated by introducing the inflation medium into the second through hole 120, and the inner balloon 200 and the outer balloon 300 are inflated or deflated respectively to form different inflation shapes. The adjustable valve 400 is disposed at the proximal end of the catheter 100, and is configured to control the opening and closing of the first through hole 110 and/or the second through hole 120, and communicate with an external filling tube through the adjustable valve 400, and the external filling tube is configured to pump or suck the filling medium, so as to communicate with the first through hole 110 and/or the second through hole 120 and to introduce or discharge the filling medium, so as to expand or contract the inner balloon 200 or/and the outer balloon 300. The filling medium in this embodiment may be a liquid such as water, or may be air.

In the above embodiment, the balloon catheter 100 is placed into the port of the mcfarland through the puncture needle, and the first through hole 110 and the second through hole 120 are opened or closed through the adjustable valve 400 according to different tissue structure shapes of the port of each person's mcfarland, so that the inner balloon 200 and/or the outer balloon 300 are respectively filled with a medium or discharged with a medium, the filled inner balloon 200 and the filled outer balloon 300 are combined to form different filling shapes, and the different filling shapes are matched with different tissue structures, so that the trigeminal nerve meniscus is adaptively compressed, and the trigeminal neuralgia can be treated. The compression form formed by the inner balloon 200 and the outer balloon 300 can adapt to self tissue structure, the compression form after entering the human body is various, the effect is various, the pressure can be adjusted adaptively according to the difference of the tissue structure, the application range is wide, the applicability is strong, the structure is ingenious, the effect is obvious by applying different pressures in multiple directions, the production cost is low, and the compression effect on the trigeminal nerve semilunar junction is good.

As shown in fig. 1 and 3, in a specific structure of this embodiment, the adjustable balloon dilation catheter 100 further includes: a filling handle 500, the filling handle 500 being connected to an end of the adjustable valve 400 facing away from the catheter 100 and communicating with the adjustable valve 400; the proximal end of the filling handle 500 is provided with a connection site 510 for connection to an external filling tube (not shown). The connection site 510 may be a threaded connection sleeve, and an external filling tube may be connected to a pump body (not shown) to provide a filling medium, such as water, gas, etc., to the adjustable balloon dilation catheter 100 device. In this embodiment, for example, the liquid is filled or discharged, and after the liquid is filled into the inner balloon 200 and the outer balloon 300, the inner balloon 200 and the outer balloon 300 are uniformly inflated. Evenly compresses the trigeminal semilunar ganglion, and has good treatment effect.

As shown in fig. 1 and fig. 3, the adjustable valve 400 in this embodiment has two forms, specifically:

as shown in fig. 1 and 2, the first adjustable valve 400 includes: the adjustable valve 400 includes: a valve body 410, and a push valve core 420. The valve body 410 is connected to the proximal end of the catheter 100, a sliding groove 412 is arranged in the valve body 410, the sliding groove 412 is located in the middle of the valve body 410, and the push valve element 420 is arranged in the sliding groove 412 of the valve body 410 in a sliding manner. The inner wall of the sliding groove 412 is provided with a third inlet and outlet hole 413, a fourth inlet and outlet hole 414, a fifth inlet and outlet hole 415, and a sixth inlet and outlet hole 416, the third inlet and outlet hole 413 and the fourth inlet and outlet hole 414 are connected to a communication sleeve of the filling handle 500 (the valve body 410 can also be used as the filling handle 500), and thus the third inlet and outlet hole 413 and the fourth inlet and outlet hole 414 are used for communicating with an external filling tube. The fifth access hole 415 communicates with the first via hole 110, and the sixth access hole 416 communicates with the second via hole 120. In a specific structure, the third inlet/outlet hole 413 and the sixth inlet/outlet hole 416 are located on the same cross-sectional position perpendicular to the axial direction of the sliding groove 412, and are respectively located on two radial sides of the sliding groove 412. The fifth access port 415 is located on a distal side of the third access port 413 and the fourth access port 414 is located on a proximal side of the sixth access port 416.

The third air chamber 421 and the fourth air chamber 422 are arranged on the push valve core 420 and are not communicated with each other, the third air chamber 421 and the fourth air chamber 422 are arranged on two radial sides, that is, the third air chamber 421 and the fourth air chamber 422 on the two radial sides are arranged along the axial extension of the push valve core 420. The third air accommodating chamber 421 is provided with a first hole 423, a second hole 424, and a third hole 425 along the pushing direction (axial direction) for pushing the valve element 420, and the fourth air accommodating chamber 422 is provided with a fourth hole 426, a fifth hole 427, and a sixth hole 428 along the pushing direction (axial direction) for pushing the valve element 420. The first hole 423 and the fourth hole 426 are located at the same cross-sectional position perpendicular to the axial direction of the push spool 420, and the second hole 424 and the fifth hole 427 are located at the same cross-sectional position perpendicular to the axial direction of the push spool 420; the third hole 425 and the sixth hole 428 are located at the same cross-sectional position perpendicular to the axial direction of the push valve spool 420. The first hole 423, the second hole 424 and the third hole 425 are arranged at intervals in sequence in the direction from the far end to the near end; the fourth hole 426, the fifth hole 427, and the sixth hole 428 are sequentially spaced in the distal-to-proximal direction. By the sliding of the push spool 420, the fourth inlet/outlet hole 414 and the fifth hole 427 are communicated, and the sixth inlet/outlet hole 416 and the fourth hole 426 are communicated, or the third inlet/outlet hole 413 and the second hole 424, the fifth inlet/outlet hole 415 and the first hole 423, the fourth inlet/outlet hole 414 and the sixth hole 428, the sixth inlet/outlet hole 416 and the fifth hole 427 are communicated or staggered, or the third inlet/outlet hole 413 and the third hole 425, the fifth inlet/outlet hole 415 and the second hole 424 are communicated.

The specific working principle is as follows: different gear positions are formed by pushing the push spool 420 to different positions, for example, in the first gear position, the third inlet and outlet hole 413 is located between the first hole 423 and the second hole 424 and blocked by the outer wall of the push spool 420 between the first hole 423 and the second hole 424, so that the third inlet and outlet hole 413 is closed. The fifth access hole 415 is located on the distal side of the first hole 423 and is blocked by the outer wall of the push valve core 420 on the distal side of the first hole 423, thus closing the fifth access hole 415. The fourth access port 414 is positioned between the fifth port 427 and the sixth port 428 and is blocked by the outer wall of the poppet 420 between the fifth port 427 and the sixth port 428, which closes the fourth access port 414. The sixth access port 416 is positioned between the fifth port 427 and the fourth port 426 and is blocked by the outer wall of the poppet 420 between the fifth port 427 and the fourth port 426, which closes the sixth access port 416. Thus, when the valve element 420 is pushed to the first position, the third inlet/outlet hole 413, the fourth inlet/outlet hole 414, the fifth inlet/outlet hole 415, and the sixth inlet/outlet hole 416 are all blocked. Thereby closing the first and second through

holes

110 and 120 and thus maintaining the inner and

outer balloons

200 and 300 in an inflated or deflated state.

When the push valve core 420 is pushed to the second gear, the fourth access hole 414 is communicated with the fifth hole 427, and the sixth access hole 416 is communicated with the fourth hole 426, so that the liquid is guided into the fourth air accommodating chamber 422 through the fifth hole 427 via the fourth access hole 414, and then enters the sixth access hole 416 via the fourth hole 426 on the fourth air accommodating chamber, so that the liquid can enter the outer balloon 300, and the outer balloon 300 is inflated independently. Conversely, if the external pump body is a suction function, the outer balloon 300 can be deflated. Meanwhile, only the first hole 423 in the other side is communicated with the third inlet and outlet hole 413, and the fifth inlet and outlet hole 415 is in a closed state, so that the inner balloon 200 is not inflated or deflated.

When the push valve spool 420 is pushed to the third speed, the third inlet/outlet hole 413 and the second hole 424, the fifth inlet/outlet hole 415 and the first hole 423, the fourth inlet/outlet hole 414 and the sixth hole 428, and the sixth inlet/outlet hole 416 and the fifth hole 427 communicate with each other. The liquid on the side can enter the inner balloon 200 through the third inlet/outlet hole 413, the liquid is guided into the third air containing cavity 421 through the second hole 424, and then enters the fifth inlet/outlet hole 415 through the first hole 423 on the third air containing cavity 421, so that the inner balloon 200 is inflated. Meanwhile, the liquid on the other side is introduced into the fourth air-accommodating chamber 422 through the fourth access hole 414 and through the sixth hole 428, and then enters the sixth access hole 416 through the fifth hole 427 of the fourth air-accommodating chamber 422, so that the liquid can enter the outer balloon 300, and the outer balloon 300 is inflated. On the contrary, if the external pump body is a suction function, the inner balloon 200 and the outer balloon 300 can be contracted at the same time.

When the push valve body 420 is pushed to the fourth speed, the third inlet and outlet hole 413 and the third hole 425 communicate with each other, and the fifth inlet and outlet hole 415 and the second hole 424 communicate with each other; only the sixth hole 428 on the other side is communicated with the sixth access hole 416, and the other holes are closed; thus, liquid is guided into the third air accommodating cavity 421 through the third hole 425 via the third access hole 413 and then enters the fifth access hole 415 via the second hole 424 on the third air accommodating cavity, so that the liquid can enter the inner balloon 200, and the inner balloon 200 can be inflated independently. Conversely, if the external pump body is suction, the inner balloon 200 can be deflated.

Therefore, the four-gear adjustment can be realized by the structure of the adjustable valve 400. If adjusted to the second gear, the distal outer balloon 300 inflates. Adjusting to the first gear, closing all, can keep the inflation state of outer balloon 300 and inner balloon 200, can keep a balloon and two balloons inflation state or vacuum state simultaneously. Adjustment to the fourth gear position inflates the proximal inner balloon 200. Adjusted to the third position, the distal outer balloon 300 and the proximal inner balloon 200 may be inflated or vacuum may be drawn simultaneously. And, by adjusting the second gear and the fourth gear, the shape of a single balloon (the outer balloon 300 or the inner balloon 200) and the combined shape of the double balloons (the outer balloon 300 and the inner balloon 200) can be controlled.

As shown in fig. 3 and 4, the second adjustable valve 400 specifically includes: a valve body 430, and a rotary valve spool 440. As shown in fig. 5 and 6, the valve body 430 is connected to the proximal end of the catheter 100, and a rotation hole 431 is formed at one side of the valve body 430. The rotary valve core 440 is rotatably disposed in the rotary hole 431 of the valve body 430. A first inlet and outlet hole 432 and a second inlet and outlet hole 433 are formed in the inner wall of the rotary hole 431 in parallel, and the first inlet and outlet hole 432 and the second inlet and outlet hole 433 extend along the radial direction and are used for being communicated with an external filling pipe. As shown in fig. 7, a first air accommodating chamber 441 and a second air accommodating chamber 442 which are not communicated with each other are provided on the rotary valve core 440 along the direction of the rotation axis, the first air accommodating chamber 441 is communicated with the first through hole 110, and the second air accommodating chamber 442 is communicated with the second through hole 120. A first inner bag adjusting hole 443 and a second inner bag adjusting hole 444 radially penetrate through the inner wall of the first air containing cavity 441, and a first outer bag adjusting hole 445 and a second outer bag adjusting hole 446 radially penetrate through the inner wall of the second air containing cavity 442. By the rotation of the rotary valve core 440, the first inner bag adjusting hole 443 and the second inner bag adjusting hole 444 are respectively communicated with or staggered from the first inlet and outlet hole 432, and the first outer bag adjusting hole 445 and the second outer bag adjusting hole 446 are respectively communicated with or staggered from the second inlet and outlet hole 433.

As shown in fig. 5, 6 and 7, the specific working principle is as follows: different gear positions are formed by rotating the rotary valve spool 440 to different positions, such as: when the inner balloon adjusting structure is rotated to the first gear, the first inner balloon adjusting hole 443 and the first access hole 432 are staggered, and the second inner balloon adjusting hole 444 and the first access hole 432 are also staggered, so that the liquid in the first access hole 432 cannot fill the first air containing cavity 441, the first air containing cavity 441 and the first access hole 432 are separated, the liquid in the inner balloon 200 cannot flow in or out, and the inner balloon 200 can be kept in a full state. Meanwhile, the positions of the first outer bag adjusting hole 445 and the second inlet/outlet hole 433 are staggered, and the positions of the second outer bag adjusting hole 446 and the second inlet/outlet hole 433 are also staggered, so that the liquid in the second inlet/outlet hole 433 cannot be filled into the second air accommodating chamber 442, the second air accommodating chamber 442 is separated from the second inlet/outlet hole 433, and therefore the liquid in the outer balloon 300 cannot flow into or out, and the outer balloon 300 can be kept in a filled state.

When rotated to the second shift position, the first outer bag adjustment hole 445 is positioned opposite the second access hole 433 so as to communicate therewith. The second outer bag adjusting hole 446 is staggered with the second inlet/outlet hole 433, so that liquid is conveyed through the external pump body, enters the second air containing cavity 442 from the second inlet/outlet hole 433 through the first outer bag adjusting hole 445, and then is input into the second via hole 120 through the second air containing cavity 442, and then enters the outer bag 300, so that the outer bag 300 is inflated. Meanwhile, the first inner bag adjusting hole 443 and the first access hole 432 are staggered, and the second inner bag adjusting hole 444 and the first access hole 432 are also staggered, so that the liquid in the first access hole 432 cannot fill the first air containing cavity 441, the first air containing cavity 441 is separated from the first access hole 432, and the liquid in the inner balloon 200 cannot flow in or out, so that the filling or contraction of the inner balloon 200 cannot be controlled. Thus enabling independent control of the outer balloon 300.

When the third gear is rotated, the first outer bag adjusting hole 445 is not communicated with the second access hole 433 in a staggered manner. The second outer bag adjusting hole 446 is in butt joint with and communicated with the second inlet and outlet hole 433, so that liquid is conveyed through the external pump body, enters the second air accommodating cavity 442 from the second inlet and outlet hole 433 through the second outer bag adjusting hole 446, is input into the second through hole 120 through the second air accommodating cavity 442, and then enters the outer balloon 300, so that the outer balloon 300 is inflated. While the second inner bladder adjustment aperture 444 communicates in abutting relation to the first access aperture 432 and the first inner bladder adjustment aperture 443 is offset from the first access aperture 432; thus, the liquid in the first inlet/outlet hole 432 can fill into the first air-containing chamber 441 through the second inner bag adjusting hole 444, so that the first air-containing chamber 441 is communicated with the first inlet/outlet hole 432, and the liquid in the first air-containing chamber 441 can enter the inner bag 200 through the first through hole 110, thereby controlling the filling of the inner bag 200. Simultaneous inflation control of the outer balloon 300 and the inner balloon 200 is thus achieved. On the contrary, when the external pump body is inhaling, the simultaneous contraction control of the outer balloon 300 and the inner balloon 200 can be realized.

When the first inner bag adjusting hole 443 is in butt joint with the first inlet and outlet hole 432 to be communicated, and the second inner bag adjusting hole 444 is staggered with the first inlet and outlet hole 432 to be not communicated, so that liquid is conveyed through the external pump body, the liquid in the first inlet and outlet hole 432 can be filled into the first air containing cavity 441 through the first inner bag adjusting hole 443, and then is input into the first inlet and outlet hole 110 through the first air containing cavity 441 to enter the inner bag 200, so that the inner bag 200 is filled, and the filling of the inner bag 200 is controlled. Meanwhile, the first outer bag adjusting hole 445 is not communicated with the second access hole 433 in a staggered manner. The second capsule adjusting hole 446 is staggered with the second access hole 433 and is not communicated with the second capsule adjusting hole. Thus enabling individual control of the inner balloon 200.

Therefore, by rotating the rotary valve spool 440 to different positions, four-gear adjustment can be achieved.

As shown in fig. 6 and 7, the structure of the adjustable valve 400 with a rotary structure further includes: a first diversion trench 434 and a second diversion trench 435 are circumferentially and side by side arranged on the inner wall of the rotary hole 431, a through hole is formed in the first diversion trench 434 and communicated with the first via hole 110, and a through hole is formed in the second diversion trench 435 and communicated with the second via hole 120. The first air containing cavity 441 is communicated with the first guide groove 434 through a radially arranged through hole, and the second air containing cavity 442 is communicated with the second guide groove 435 through a radially arranged through hole. By the rotation of the rotary spool 440, the first inner bag adjusting hole 443 and the second inner bag adjusting hole 444 communicate with the first inlet and outlet hole 432, respectively, and the first outer bag adjusting hole 445 and the second outer bag adjusting hole 446 communicate with the second inlet and outlet hole 433, respectively. By providing the first guide groove 434 and the second guide groove 435, when the rotary valve core 440 rotates to any position, the first guide groove 434 is communicated with the first air containing chamber 441 through the through hole, and the first guide groove 434 is communicated with the first via hole 110, so that the first via hole 110 is communicated with the first air containing chamber 441 in real time, and similarly, the second via hole 120 is communicated with the second air containing chamber 442 in real time. This facilitates the implementation of the rotary valve function. Through simple structure, realize many gears regulation control of rotation type valve. As shown in fig. 8 a and 8 b, in a cross section in which the rotation axis of the rotary valve core 440 is perpendicular, an orthogonal projection of the first inner bag adjustment hole 443, an orthogonal projection of the second inner bag adjustment hole 444, and an orthogonal projection of the first outer bag adjustment hole 445 are located at different positions on the circumference of the rotary valve core 440, and the positions of the second inner bag adjustment hole 444 and the second outer bag adjustment hole 446 coincide. I.e. different gear positions correspond to different positions of rotation during rotation. And the positions of the second inner bag adjusting hole 444 and the second outer bag adjusting hole 446 are overlapped, so that when the outer bag 300 and the inner bag 200 are rotated to the third gear, simultaneous contraction control can be realized.

As shown in fig. 4, a T-shaped groove 436 is formed at the bottom of the rotation hole 431 in the present embodiment, a plurality of hooks 447 are disposed at one end of the rotary valve core 440, the hooks 447 are spaced around the circumference of the rotary valve core 440, and the hooks 447 are engaged with the T-shaped groove 436. The rotary valve core 440 can be connected to the valve body 430 by the engagement of the T-shaped groove 436 and the hook 447, so that the rotary valve core 440 can be stably rotated in the rotary hole 431. Meanwhile, the assembly is also facilitated, when the rotary valve core 440 is inserted into the rotary hole 431, the clamping hooks 447 are extruded and deformed to be close to each other and contract, and after entering the position of the T-shaped groove 436, the clamping is opened and clamped. Is simple and convenient. In this embodiment, a knob portion 448 is disposed at one end of the rotary valve core 440 protruding from the rotary hole 431. Knob portion 448 facilitates hand-held rotation. The operation of the user is convenient.

In another configuration, as shown in fig. 9 c, an extension tube 130 is disposed at the distal end of the catheter, the first via 110 extends to the extension tube, and the second via 120 extends through the distal end of the catheter. The side wall of the extension tube is provided with a through hole, the inner balloon is arranged on the extension tube in a surrounding mode, and therefore the medium can be filled into the inner balloon through the first through hole. The proximal end of the outer balloon is wrapped around the catheter and the distal end is wrapped around the distal end of the extension tube such that the exit port of the second access hole is enclosed within the outer balloon. The structure of the outer balloon and the inner balloon is realized.

Through the two adjustable valve 400 structures, four-gear control can be realized. The combination of the inner balloon 200 and/or the outer balloon 300 is facilitated to form different balloon filling configurations. The method comprises the following specific steps:

as shown in fig. 9 c, the inner balloon 200 and the outer balloon 300 are both inflated and form a first inflated shape 600, the first inflated shape 600 includes a distal inflated portion, a proximal inflated portion, and an intermediate deflated portion connecting the distal inflated portion and the proximal inflated portion, wherein the profile diameter of the intermediate cross section of the proximal inflated portion and the profile diameter of the intermediate cross section of the distal inflated portion are both greater than the profile diameter of the intermediate cross section of the intermediate deflated portion. Thus, inner balloon 200 is inflated and outer balloon 300 is inflated, resulting in first inflated configuration 600 being dumbbell-shaped. The inner balloon 200 and the outer balloon 300 of the first dumbbell-shaped inflated 600 exert a specific compression on different points of the trigeminal ganglion.

As shown in d of fig. 9, the inner balloon 200 is deflated and the outer balloon 300 is inflated to form a second inflated shape 610, wherein the second inflated shape 610 comprises a distal deflated portion and a proximal inflated portion, wherein the profile diameter of the middle cross-section of the proximal inflated portion is larger than the profile diameter of the middle cross-section of the distal deflated portion. The inner balloon 200 is thus deflated and the outer balloon 300 is inflated to provide the second filling 610 with a pear-like shape, whereby the inner balloon 200 and the outer balloon 300 of the pear-like second filling 610 provide a specific compression of different points of the trigeminal ganglion.

As shown in e of fig. 9, the inner balloon 200 is inflated and the outer balloon 300 is deflated to form a third inflated shape 620, wherein the third inflated shape 620 comprises a distal inflated portion and a proximal deflated portion, and wherein the profile diameter of the middle cross-section of the distal inflated portion is larger than the profile diameter of the middle cross-section of the proximal deflated portion. Thus, the inner balloon 200 is inflated, the outer balloon 300 is contracted to form a water drop shape, and different points of the trigeminal ganglion are pressed in a special direction through the inner balloon 200 and the outer balloon 300 in the third filling shape 620 of the water drop shape. In addition, the outer balloon 300 may be inflated alone to form a circular shape.

Thus, the different points of the trigeminal ganglion are compressed exclusively by the different shapes. The inner balloon 300 and the outer balloon 300 are respectively inflated according to the condition of each person, the needed shape is further adjusted, the trigeminal nerve semilunar junction is compressed, the balloon liquid is emptied and withdrawn into the balloon catheter 100 after the operation, and the short-time compression hemostasis is carried out on the operation point. The invention has the advantages of convenient structure, obvious effect of different pressures in multiple directions, low production cost and good compression effect on the semilunar junction of the trigeminal nerve.

The combined inflated shapes of the additional inner balloon 200 and/or outer balloon 300 are shown as f and g in fig. 10.

As shown in fig. 9, the distal end of the catheter in this embodiment is provided with a visualization ring. The developing ring can be used for positioning, so that the operation is convenient. The number of the developing rings in this embodiment is 3, and the three developing rings are respectively a first developing ring 310, a second developing ring 320, and a third developing ring 330, wherein the first developing ring 310 is disposed on the catheter and located at the proximal end of the outer balloon, and in addition to the developing effect, the proximal end of the outer balloon can be fixed on the catheter. The second visualization ring 320 is disposed inside the outer balloon and at the proximal end of the inner balloon, and besides visualization, the proximal end of the inner balloon can be fixed to the outer wall of the extension tube 130. The third visualization ring 330 is disposed at the end of the distal end of the outer balloon, i.e., the third visualization ring, in addition to visualization, can also fix the distal ends of the inner and outer balloons at the distal end of the extension tube 130. The developing ring is a metal ring, the end part of the balloon can be fixed through the developing ring, in addition, the developing can be realized, and the position of the balloon can be seen on a video camera in vivo.

The catheter 100 of this embodiment has scales on the body. The position depth of the entering of the saccule can be analyzed and known through the scales, so that the catheter 100 can conveniently stretch into a human body.

In summary, the adjustable balloon dilatation catheter 100 device provided by the invention is characterized in that the balloon catheter 100 is placed into the port of the mylar sac through the puncture needle, the first through hole 110 and the second through hole 120 are opened or closed through the adjustable valve 400 according to different tissue structure shapes of the port of the mylar sac of each person, so that the inner balloon 200 and/or the outer balloon 300 are respectively filled with or discharged with media, the filled inner balloon 200 and the filled outer balloon 300 are combined to form different filling shapes, and the different filling shapes are matched with different tissue structures, so that the trigeminal nerve meniscus is adaptively pressed, and the trigeminal neuralgia treatment effect is achieved. The oppression form that forms through interior sacculus 200 and outer sacculus 300 can adapt to self organizational structure, and it is various that it gets into the oppression form behind the human body, and the effect is various, and pressure can be according to organizational structure's difference and adaptability adjusts, and application scope is big, and the suitability is strong, and treatment is good. The balloon catheter 100 is retracted after the operation by evacuating the liquid from the outer balloon 300 and the inner balloon 200, and the operation site is temporarily compressed to stop bleeding. The invention has the advantages of ingenious structure, obvious effect of applying different pressures in multiple directions, low production cost and good compression effect on the semilunar junction of the trigeminal nerve.

Meanwhile, the adjustable balloon dilatation catheter 100 device can be applied to the vascular thrombus removal from the horizontal segment of the internal carotid artery and the middle cerebral artery to the rotary segment. The scheme has wide application range and increased practicability.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims

1. An adjustable balloon catheter, comprising: the guide pipe is internally provided with a first through hole and a second through hole in parallel;

the outer balloon is sleeved outside the inner balloon, connected to the far end of the catheter and communicated with the second via hole;

the adjustable valve is arranged at the near end of the catheter and is used for controlling the opening and closing of the first through hole and/or the second through hole;

the adjustable valve includes: a valve body connected to the proximal end of the catheter, one side of the valve body being provided with a rotation hole, an

through the rotation of the rotary valve core, the first inner bag adjusting hole and the second inner bag adjusting hole are respectively communicated with or staggered with the first inlet and outlet hole, and the first outer bag adjusting hole and the second outer bag adjusting hole are respectively communicated with or staggered with the second inlet and outlet hole;

or

The adjustable valve includes: a valve body connected to the proximal end of the catheter, the valve body having a sliding groove therein, an

the pushing valve core is provided with a third air containing cavity and a fourth air containing cavity which are not communicated with each other, the third air containing cavity and the fourth air containing cavity are arranged on two radial sides, the third air containing cavity is respectively provided with a first hole, a second hole and a third hole along the pushing direction of the pushing valve core, and the fourth air containing cavity is respectively provided with a fourth hole, a fifth hole and a sixth hole along the pushing direction of the pushing valve core;

through the sliding of the push valve core, the fourth inlet and outlet hole is communicated with the fifth hole, and the sixth inlet and outlet hole is communicated with the fourth hole, or

The third inlet and outlet hole is communicated with the third hole, and the fifth inlet and outlet hole is communicated with the second hole.

2. The adjustable balloon catheter according to claim 1, wherein when the adjustable valve comprises a rotary valve core, a first guide groove and a second guide groove are circumferentially and side by side formed in an inner wall of the rotary hole, a through hole is formed in the first guide groove and communicated with the first via hole, and a through hole is formed in the second guide groove and communicated with the second via hole;

3. The adjustable balloon catheter according to claim 2, wherein when the adjustable valve comprises a rotating spool, an orthographic projection of the first inner balloon adjustment orifice, an orthographic projection of the second inner balloon adjustment orifice, and an orthographic projection of the first outer balloon adjustment orifice are located at different positions on a circumference of the rotating spool, and positions of the second inner balloon adjustment orifice and the second outer balloon adjustment orifice coincide, in a cross-section perpendicular to a rotation axis of the rotating spool.

4. The adjustable balloon catheter according to claim 1, wherein when the adjustable valve comprises a rotatable valve core, a T-shaped slot is formed at the bottom of the rotary hole;

the hook is embedded in the T-shaped groove.

5. The adjustable balloon catheter according to claim 1, wherein the inner balloon and the outer balloon are each inflated and form a first inflated shape comprising a distal inflated portion, a proximal inflated portion, and an intermediate deflated portion connecting the distal inflated portion and the proximal inflated portion; or

The inner balloon is contracted and the outer balloon is inflated to form a second filling shape, and the second filling shape comprises a far-end contraction part and a near-end expansion part; or

The inner balloon is inflated, and the outer balloon is deflated to form a third inflated shape which comprises a distal inflated portion and a proximal deflated portion.

6. The adjustable balloon catheter according to claim 1, further comprising: the filling handle is connected to one end, away from the catheter, of the adjustable valve and communicated with the adjustable valve;

7. The adjustable balloon catheter according to claim 1, wherein the distal end of the catheter is provided with a visualization ring.

8. The adjustable balloon catheter according to any one of claims 1-7, wherein the catheter body is provided with graduations.