阅读说明：本技术 一种颅内药物球囊 (Encephalic medicine balloon ) 是由 王晓辉 于 2021-07-30 设计创作，主要内容包括：本发明涉及医疗器械技术领域,具体涉及一种颅内药物球囊；第一气孔与扩张囊相对应,导管靠近囊体的一端还设置有第二气孔,第二气孔的内部设置有第一膨胀膜,第一膨胀膜靠近分瓣的一端设置有第一凸块,当囊体到达病变处时,向导管内冲入压力介质,部分压力介质通过第一气孔进而到扩张囊的内部,在压力作用下,扩张囊扩张与病变处的血管壁充分接触,部分压力介质通过第二气孔对第一膨胀膜施压,使得第一膨胀膜受力形变,从而通过第一凸块刺破药囊,从而将药囊内的药物溢散至病变处,进行治疗,避免药物在未到达病变部位之前被稀释,导致疗效降低。(The invention relates to the technical field of medical instruments, in particular to an intracranial drug balloon; the first air hole corresponds to the expansion bag, one end of the catheter close to the bag body is further provided with a second air hole, a first expansion film is arranged inside the second air hole, one end of the first expansion film close to the split is provided with a first convex block, when the bag body reaches a pathological change position, pressure medium is filled into the catheter, part of the pressure medium passes through the first air hole and then reaches the inside of the expansion bag, under the action of pressure, the expansion bag is fully contacted with the vascular wall of the pathological change position, part of the pressure medium exerts pressure on the first expansion film through the second air hole, the first expansion film is stressed and deformed, the medicine bag is punctured through the first convex block, medicine in the medicine bag overflows to the pathological change position and is treated, the medicine is prevented from being diluted before reaching the pathological change position, and the curative effect is reduced.)

1. An encephalic drug balloon, which is characterized in that,

the intracranial drug balloon comprises a balloon body, a catheter and a handle, wherein the balloon body is arranged at one end of the catheter, the handle is arranged at the other end of the catheter, an expansion balloon is arranged outside the balloon body, a first air hole is formed in one end, close to the balloon body, of the catheter, and the first air hole corresponds to the expansion balloon;

the outside of utricule still is provided with the split, the split is located the expansion bag is close to one side of handle, the inside of split is provided with first cavity, the inside of first cavity is provided with the anther sac, the pipe is close to the one end of utricule still is provided with the second gas pocket, the second gas pocket with the split is corresponding, the inside of second gas pocket is provided with first inflation membrane, first inflation membrane is close to the one end of split is provided with first lug, first lug is the spine structure setting, first lug with the anther sac is corresponding.

2. The intracranial drug balloon as recited in claim 1,

the number of the first air holes is multiple, the first air holes are uniformly formed in the periphery of the guide pipe, and each first air hole corresponds to the expansion bag.

3. The intracranial drug balloon as recited in claim 2,

the number of the split pieces is multiple, the number of the second air holes is multiple, the split pieces are uniformly arranged around the bag body, the second air holes are uniformly arranged around the guide pipe, each second air hole corresponds to one split piece, and each first expansion membrane is arranged in each second air hole.

4. The intracranial drug balloon as recited in claim 1,

every the first cavity is kept away from the one end of corresponding first gas pocket all is provided with first through-hole, every all be provided with one-way diaphragm on the first through-hole.

5. The intracranial drug balloon as recited in claim 1,

be provided with the groove of dosing on the outer wall of expansion bag, the quantity of groove of dosing is a plurality of, and is a plurality of the groove evenly distributed of dosing is in on the outer wall of expansion bag.

6. The intracranial drug balloon as in claim 5,

every the bottom in dosing groove all is provided with the second inflation membrane, every the tip in dosing groove all is provided with flexible diaphragm, flexible diaphragm lid is established the top of second inflation membrane, flexible diaphragm's one end with expansion bag fixed connection.

Technical Field

The invention relates to the technical field of medical instruments, in particular to an intracranial drug balloon.

Background

In recent years, a medicine balloon for preventing restenosis of a blood vessel after an interventional therapy operation appears, a medicine for resisting vascular intimal hyperplasia is coated on the surface of the balloon, and when the balloon reaches the blood vessel wall of a lesion part, the balloon is inflated and contacts with the intimal of the blood vessel wall, and then the medicine is released into a local blood vessel wall.

However, in the existing intracranial drug balloon, drugs are coated on the surface of the balloon, and when the drug is conveyed in a blood vessel, part of the drugs can be washed away by blood, so that the curative effect is reduced.

Disclosure of Invention

The invention aims to provide an intracranial drug balloon, which solves the problem that the prior intracranial drug balloon in the prior art is reduced in curative effect because drugs are coated on the surface of the balloon and are partially washed away by blood when being conveyed in a blood vessel.

In order to achieve the purpose, the invention provides an intracranial drug balloon, which comprises a balloon body, a catheter and a handle, wherein the balloon body is arranged at one end of the catheter, the handle is arranged at the other end of the catheter, an expansion balloon is arranged outside the balloon body, a first air hole is arranged at one end of the catheter close to the balloon body, and the first air hole corresponds to the expansion balloon;

the outside of utricule still is provided with the split, the split is located the expansion bag is close to one side of handle, the inside of split is provided with first cavity, the inside of first cavity is provided with the anther sac, the pipe is close to the one end of utricule still is provided with the second gas pocket, the second gas pocket with the split is corresponding, the inside of second gas pocket is provided with first inflation membrane, first inflation membrane is close to the one end of split is provided with first lug, first lug is the spine structure setting, first lug with the anther sac is corresponding.

When the capsule body reaches a lesion, pressure medium is flushed into the catheter, part of the pressure medium passes through the first air hole and then reaches the interior of the expansion capsule, the expansion capsule is expanded to be fully contacted with the vascular wall of the lesion under the action of pressure, and part of the pressure medium presses the first expansion membrane through the second air hole, so that the first expansion membrane is stressed and deformed, the capsule is punctured through the first bump, the medicine in the capsule is overflowed to the lesion to be treated, and the medicine is prevented from being diluted before reaching the lesion to cause reduction of curative effect.

The number of the first air holes is multiple, the first air holes are uniformly formed in the periphery of the guide pipe, and each first air hole corresponds to the expansion bag.

The number of the first air holes is multiple, and the pressure medium is uniformly input into the expansion bag through the multiple first air holes.

The number of the split pieces is multiple, the number of the second air holes is multiple, the split pieces are uniformly arranged around the bag body, the second air holes are uniformly arranged around the guide pipe, each second air hole corresponds to one split piece, and each second air hole is internally provided with one first expansion membrane.

The number of the valving and the second air holes is multiple, different medicines can be placed in the medicine sacs, the combination medicine therapy is convenient for the patient, and the treatment effect is improved.

One end, far away from the corresponding first air hole, of each first cavity is provided with a first through hole, and each first through hole is provided with a one-way diaphragm.

The medicine in the medicine bag overflows out of the valve through the first through hole so as to be administered to the lesion part, and the unidirectional membrane is arranged on the first through hole so as to prevent the coat of the medicine bag from entering the blood vessel of the patient through the first through hole.

The outer wall of the expansion capsule is provided with a plurality of dosing grooves, and the dosing grooves are evenly distributed on the outer wall of the expansion capsule.

The outer wall of the expansion capsule is provided with a plurality of drug feeding grooves, and drugs are coated in the drug feeding grooves, so that when the expansion capsule expands, the drugs are in direct contact with the lesion part, and the treatment effect is better.

The bottom of each dosing groove is provided with a second expansion film, the end of each dosing groove is provided with a flexible diaphragm, the flexible diaphragm covers the upper portion of the second expansion film, and one end of each flexible diaphragm is fixedly connected with the expansion bag.

After the expansion capsule expands under the action of pressure, the second expansion membrane continues to expand under the action of pressure, and only one end of the flexible membrane is fixedly connected with the expansion capsule, so that the end, far away from the interior of the expansion capsule, of the second expansion membrane is separated from the medicine feeding groove, and a medicine coating coated on the second expansion membrane is in direct contact with a diseased region, and the treatment effect is better.

The intracranial drug balloon is characterized in that an expansion bag is arranged outside the bag body, a first air hole is formed in one end, close to the bag body, of the catheter, the first air hole corresponds to the expansion bag, a split is further arranged outside the bag body, a second air hole is further formed in one end, close to the bag body, of the catheter, the second air hole corresponds to the split, a first expansion membrane is arranged inside the second air hole, a first convex block is arranged at one end, close to the split, of the first expansion membrane, the first convex block is arranged in a sharp thorn structure, the first convex block corresponds to the drug bag, when the bag body reaches a lesion, a pressure medium is flushed into the catheter, part of the pressure medium passes through the first air hole and then reaches the interior of the expansion bag, and under the action of pressure, the expansion bag is fully contacted with the wall of the lesion, and part of the pressure medium presses the first expansion membrane through the second air hole, so that the first expansion membrane is stressed and deformed, the medicine bag is punctured through the first bump, and the medicine in the medicine bag is spilled to a lesion part for treatment, so that the medicine is prevented from being diluted before reaching the lesion part, and the curative effect is prevented from being reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an intracranial drug balloon provided by the invention.

Fig. 2 is a partial structural schematic diagram of an intracranial drug balloon provided by the invention.

Fig. 3 is a side view of fig. 2 provided by the present invention.

Fig. 4 is a sectional view of the inner structure of fig. 3 taken along line a-a according to the present invention.

Fig. 5 is an enlarged view of a portion of the structure of fig. 4 a according to the present invention.

1-capsule body, 2-catheter, 21-first air hole, 22-second air hole, 23-third air hole, 24-delivery pipe, 3-handle, 4-expansion capsule, 41-dosing groove, 42-second expansion membrane, 43-flexible membrane, 5-split, 51-first cavity, 52-drug capsule, 53-first expansion membrane, 54-first lug, 55-first through hole, 56-one-way membrane, 6-diversion capsule, 61-second cavity, 62-sealing capsule, 63-third expansion membrane, 64-second lug, 65-delivery hole and 66-second through hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, the present invention provides an intracranial drug balloon, which includes a balloon body 1, a catheter 2 and a handle 3, wherein one end of the catheter 2 is provided with the balloon body 1, the other end of the catheter 2 is provided with the handle 3, an expansion balloon 4 is arranged outside the balloon body 1, one end of the catheter 2 close to the balloon body 1 is provided with a first air hole 21, and the first air hole 21 corresponds to the expansion balloon 4;

the utility model discloses a medical device, including utricule 1, expansion bag 4, pipe 2, first air hole 22, second air hole 22, division 5, first cavity 51, anther sac 52, pipe 2, first air hole 53, first bulge 54 is the structure setting of spine, first bulge 54 with anther sac 52 is corresponding, division 5's outside still is provided with division 5, division 5 is located expansion bag 4 is close to one side of handle 3, division 5's inside is provided with first cavity 51, the inside of first cavity 51 is provided with anther sac 52, pipe 2 is close to the one end of utricule 1 still is provided with second air hole 22, second air hole 22 with division 5 is corresponding, the inside of second air hole 22 is provided with first inflation membrane 53, first inflation membrane 53 is close to the one end of division 5 is provided with first lug 54, first lug 54 is the structure setting of spine, first lug 54 with anther sac 52 is corresponding.

In this embodiment, when the balloon body 1 reaches a lesion, a pressure medium is flushed into the catheter 2, a part of the pressure medium passes through the first air hole 21 and then reaches the inside of the expansion balloon 4, the expansion balloon 4 is expanded to be in full contact with a blood vessel wall of the lesion under the action of pressure, and a part of the pressure medium presses the first expansion membrane 53 through the second air hole 22, so that the first expansion membrane 53 is deformed under the action of force, the first bump 54 punctures the drug capsule 52, and the drug in the drug capsule 52 overflows to the lesion to be treated, thereby preventing the drug from being diluted before reaching the lesion and reducing the curative effect.

Further, the number of the first air holes 21 is plural, the first air holes 21 are uniformly arranged around the conduit 2, each of the first air holes 21 corresponds to the expansion bag 4, the number of the segments 5 is plural, the number of the second air holes 22 is plural, the segments 5 are uniformly arranged around the bladder body 1, the second air holes 22 are uniformly arranged around the conduit 2, each of the second air holes 22 corresponds to one of the segments 5, and one of the first expansion films 53 is arranged in each of the second air holes 22.

In this embodiment, the number of the first air holes 21 is plural, and the number of the divided pieces 5 and the number of the second air holes 22 are plural because the pressure medium is uniformly supplied to the inside of the expanding bag 4 through the plural first air holes 21, so that different medicines can be placed in the plural medicine bags 52, and the combination medication can be conveniently performed on the patient, thereby improving the therapeutic effect.

Further, one end of each first cavity 51, which is far away from the corresponding first air hole 21, is provided with a first through hole 55, and a one-way diaphragm 56 is arranged on each first through hole 55.

In this embodiment, the drug in the drug bag 52 overflows the valve 5 through the first through hole 55 to be administered to the lesion, and the one-way diaphragm 56 is disposed on the first through hole 55 to prevent the outer clothing of the drug bag 52 from entering the blood vessel of the patient through the first through hole 55.

Further, be provided with dosing groove 41 on the outer wall of expansion bag 4, dosing groove 41's quantity is a plurality of, and is a plurality of dosing groove 41 evenly distributed is in on the outer wall of expansion bag 4, every dosing groove 41's bottom all is provided with second inflation membrane 42, every dosing groove 41's tip all is provided with flexible diaphragm 43, flexible diaphragm 43 lid is established the top of second inflation membrane 42, flexible diaphragm 43's one end with expansion bag 4 fixed connection.

In this embodiment, after the expansion balloon 4 is expanded under pressure, the second expansion film 42 continues to be expanded under pressure, and only one end of the flexible membrane 43 is fixedly connected to the expansion balloon 4, so that the end of the second expansion film 42 away from the inside of the expansion balloon 4 is separated from the administration groove 41, and the drug coating coated on the second expansion film 42 is in direct contact with the lesion site, thereby improving the treatment effect.

Further, the elastic modulus of the second inflatable membrane 42 is smaller than the elastic modulus of the first inflatable membrane 53.

In this embodiment, the elastic modulus of the first inflatable membrane 53 is greater than the elastic modulus of the second inflatable membrane 42, so that the speed and the amount of change of the elastic deformation of the second inflatable membrane 42 are greater, and after the lesion area is inflated by the expandable balloon 4, the first inflatable membrane 53 drives the first bump 54 to puncture the medicine bag 52.

Furthermore, one end of the catheter 2 close to the handle 3 is also provided with a guide bag 6, a second cavity 61 is arranged inside the guide bag 6, a sealing bag 62 is arranged in the second cavity 61, a third air hole 23 is also arranged on the catheter 2, the third air hole 23 corresponds to the sealing bag 62, a third expansion film 63 is arranged in the third air hole 23, the third inflatable membrane 63 is provided with a second projection 64 at an end thereof adjacent to the sealed bladder 62, the second projection 64 is arranged in a spike structure, the second projection 64 corresponds to the sealing bag 62, one end of the second cavity 61 close to the flow guide pipe is provided with a conveying hole 65, one end of the second cavity 61 far away from the flow guide pipe is provided with a second through hole 66, the delivery pipe 24 is arranged inside the guide pipe, and the delivery pipe 24 corresponds to the delivery hole 65.

In this embodiment, while the drug is administered to the lesion through the valve 5, the third inflatable membrane 63 is deformed under the pressure, so that the second protrusion 64 pierces the sealing bag 62, and then leaks out of the second through hole 66 and the delivery hole 65, so that the blood in the blood vessel is delivered through the delivery tube 24, and the blood vessel is prevented from being blocked by the dilatation balloon 4, and the blood supply is prevented, and the administration time is short.

Further, the elastic modulus of the third inflatable membrane 63 is larger than the elastic modulus of the first inflatable membrane 53.

In this embodiment, the third inflatable membrane 63 is deformed at a slower rate than the first inflatable membrane 53, and blood is supplied through the delivery tube 24 after a certain period of time after administration to the lesion, thereby preventing the drug from flowing from the delivery tube 24 through the lesion with the blood.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.