CN111437495A - Balloon catheter - Google Patents
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- CN111437495A CN111437495A CN202010391930.XA CN202010391930A CN111437495A CN 111437495 A CN111437495 A CN 111437495A CN 202010391930 A CN202010391930 A CN 202010391930A CN 111437495 A CN111437495 A CN 111437495A
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1006—Balloons formed between concentric tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Child & Adolescent Psychology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a balloon catheter, which comprises a catheter main body, a catheter main body and a catheter tail seat, wherein the catheter main body comprises a first pipeline, a second pipeline, a tip end and a multi-way tail seat, one end of the first pipeline and one end of the second pipeline are respectively arranged on the multi-way tail seat, a certain gap is formed between the first pipeline and the second pipeline, and the tip end is arranged at the other end of the first pipeline; the multi-way tailstock comprises an insertion pipeline and a first fluid pipeline, wherein the insertion pipeline is communicated with the first pipeline, and the first fluid pipeline is communicated with a second pipeline; a balloon comprising a first balloon and a second balloon, one end of the second balloon being mounted to the second conduit and the other end being mounted to the tip, the first balloon surrounding to form a first space, the first balloon and the second balloon surrounding between the first balloon and the second balloon to form a second space, a liquid or gas being adapted to enter the second space through the first fluid conduit and the second conduit. Which can shorten the time for fluid filling and/or draining.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a balloon catheter, and particularly relates to a balloon catheter for aortic valve expansion.
Background
Aortic stenosis is classified into congenital stenosis and acquired stenosis. The pathology of aortic stenosis is rheumatic aortic stenosis, which is characterized in that the valve orifice becomes small and the opening is limited due to adhesion and thickening of the valve junction. The aortic valve stenosis causes unsmooth blood flow, brings pain to patients and even brings life danger, and at present, one of the main treatment methods for aortic valve stenosis is to implant a prosthetic valve in the stenosis part through a catheter so as to keep the aortic valve blood flow unobstructed.
Before the artificial valve is implanted into the aortic valve stenosis, a balloon dilatation catheter is usually used for pre-expanding the stenotic aortic valve, so that the valve and the conveyor used for transcatheter aortic valve implantation easily cross the aortic valve, the area of the opening of the aortic valve is increased, the valve does not block the valve opening after crossing the valve, and the hemodynamics is improved to a certain extent.
When the traditional balloon dilatation catheter is used, the balloon dilatation catheter is placed at the opening of the aortic valve, and then liquid or gas is filled into the balloon to expand the balloon and extrude the opening of the aortic valve so as to increase the size of the opening of the aortic valve; after the expansion is completed, the gas or liquid in the balloon is pumped out, the volume of the balloon is reduced, and then the balloon expansion catheter is withdrawn from the main artery valve along the blood vessel.
It should be noted that, when the conventional balloon dilatation catheter is used for pressure relief, the balloon is recovered by virtue of the elasticity of the balloon itself without other recovery acting force, and the time for the balloon to retract to the original shape is long. Especially after the balloon catheter is used several times, the balloon becomes less elastic and the retraction takes more time. It will be appreciated that the longer the time for the balloon to retract under pressure relief, the longer the balloon catheter is positioned at the aortic valve opening, increasing the risk of myocardial ischemic complications and the like in the patient, causing unnecessary injury to the patient.
In view of the foregoing, there is a need for improvements to conventional balloon catheters.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a balloon catheter, the balloon of which can be rapidly inflated and retracted, reducing the time for the balloon catheter to be positioned at the aortic valve, and reducing the risk of complications.
In order to achieve the above object, the present invention provides a balloon catheter comprising:
the catheter comprises a catheter main body, a catheter main body and a catheter tail seat, wherein the catheter main body comprises a first pipeline, a second pipeline, a tip end and a multi-way tail seat, one end of the first pipeline and one end of the second pipeline are respectively installed on the multi-way tail seat, the second channel is located on the outer side of the first channel, a certain gap is formed between the first pipeline and the second pipeline, and the tip end is installed at the other end of the first pipeline; the multi-way tailstock comprises an insertion pipe and a first fluid pipe, wherein the insertion pipe is communicated with the first pipe, and the first fluid pipe is communicated with the second pipe;
a balloon comprising a first balloon and a second balloon, one end of the second balloon being mounted to the second conduit and the other end being mounted to the tip, the first balloon being located within a space surrounded by the second balloon, the first balloon being surrounded to form a first space, a second space being formed between the first balloon and the second balloon, a liquid or gas being adapted to enter the second space through the first fluid conduit and the second conduit.
In some preferred embodiments of the invention, the first space surrounded by the first bladder has a quantity of gas or liquid therein.
In some preferred embodiments of the invention, the first balloon has one end mounted to the first conduit and the other end mounted to the tip, at least a portion of the first conduit being located within the first space.
In some preferred embodiments of the present invention, both ends of the first bladder are respectively mounted to the first duct, and at least a portion of the first duct is located in the first space.
In some preferred embodiments of the invention, the first bladder is folded in a direction in which the first conduit length extends.
In some preferred embodiments of the present invention, the catheter body further comprises a third tube positioned between the first tube and the second tube with a first gap therebetween, a second gap therebetween, one end of the third tube mounted to the multiport tail mount, a first end of the first bladder mounted to the other end of the third tube; the multiway tailstock further comprises a second fluid conduit in communication with the third conduit, a liquid or gas being adapted to enter the first bladder through the second fluid conduit, the first gap; a liquid or gas is adapted to enter the second bladder through the first fluid conduit, the second gap.
In some preferred embodiments of the present invention, the third conduit has a length greater than the length of the second conduit and less than the length of the first conduit.
In some preferred embodiments of the present invention, the second bladder is made of a polymer elastic material.
In some preferred embodiments of the present invention, the catheter body further comprises a positioning member, the positioning member is mounted to the first conduit, and the positioning member is located in a space surrounded by the second balloon for determining the position of the balloon catheter.
In some preferred embodiments of the present invention, the positioning member is a developing ring, and the developing ring is sleeved on the peripheral wall of the first pipe.
The scheme of the invention comprises at least one of the following beneficial effects:
1. the balloon catheter adopts a double-layer balloon structure, and liquid or gas is filled in the space between the two layers of balloons, so that the liquid or gas filling time and the liquid or gas discharging time can be shortened, the staying time of the balloon catheter in a patient body can be shortened, and the risk of complication of the patient is reduced;
2. adopt double-deck utricule structure to fill liquid or gas respectively in two utricule spaces, thereby can shorten liquid or gaseous filling time, the exhaust time of liquid or gas, thereby can reduce the time that the sacculus pipe stayed in patient's body, reduce the risk that the patient appears the complication.
Drawings
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.
Fig. 1 is a partial cross-sectional view of a balloon catheter of a first preferred embodiment of the present invention in a contracted state;
fig. 2 is a partial sectional view of the balloon catheter of the above preferred embodiment of the present invention in an inflated state;
FIG. 3 is a partial cross-sectional view of a balloon catheter of a second preferred embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a balloon catheter of a third preferred embodiment of the present invention;
fig. 5 is a partial cross-sectional view of a balloon catheter of a fourth preferred embodiment of the present invention in a contracted state;
fig. 6 is a partial sectional view of an inflated state of a balloon catheter according to a fourth preferred embodiment of the present invention.
The reference numbers illustrate:
1 a catheter body, 2 a first balloon, 3 a second balloon; 11 first tube, 12 second tube, 13 multi-way tailstock, 14 tip, 15 positioning element, 20 first space, 30 second space, 16 third tube, 131 insertion tube, 132 first fluid tube, 133 second fluid tube.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
Example one
Referring to the accompanying drawings 1-2 of the specification, the invention provides a balloon catheter, the balloon of which can be rapidly expanded and retracted, so that the time for the balloon catheter to be positioned at an aortic valve is reduced, and the risk of complications is reduced.
Specifically, the balloon catheter comprises a catheter body 1, a first balloon 2 and a second balloon 3, wherein the first balloon 2 and the second balloon 3 are respectively mounted on the catheter body 1, and the second balloon 3 is positioned at the outer side of the first balloon 2; said first capsule 2 surrounds a first space 20; said first capsule 2 and said second capsule 3 form a second space 30 around between said first capsule 2 and said second capsule 3; the second space 30 is adapted to be filled with a liquid or gas to expand the second balloon 3 outwardly to support the aortic valve.
It can be understood that, since the second space 30 surrounds the outside of the first space 20 and the second space 30 is filled with liquid or gas, the volume filled with liquid or gas can be reduced when the second balloon 3 is inflated to the same volume, so that the time for the second balloon 3 to be inflated from the deflated state to the inflated state can be shortened; accordingly, when the gas or liquid in the second space 30 is exhausted, the time for the second capsule 3 to retract from the expanded state to the contracted state can be shortened because there is less liquid or gas in the second space 30.
Therefore, by adopting the double-layer balloon design and filling liquid or gas between the two-layer balloon, the time for the second balloon to expand and retract can be shortened, so that the time for the balloon catheter to be positioned on the aortic valve can be shortened, and the risk of unnecessary complications of a patient can be reduced.
Further, the second capsule 3 is made of an elastic polymer material, which includes but is not limited to polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polyurethane, polytetrafluoroethylene, polyethylene terephthalate, epoxy resin, phenolic plastic, polyimide, melamine formaldehyde resin, and the like. It can be understood that, because the second balloon 3 is an elastic polymer tube, when pressure relief is required, that is, when liquid or gas in the second space 30 needs to be discharged, the second balloon 3 can be retracted rapidly under the action of the self elastic restoring force of the second balloon 3, so that the time for the second balloon 3 to retract from the expanded state to the contracted state can be reduced, thereby further reducing the time for the balloon catheter to be located at the aortic valve opening, and reducing the risk of unnecessary complications for the patient.
The catheter body 1 of the balloon catheter further comprises a first pipe 11, a second pipe 12, a multi-way tailstock 13 and a tip 14; the first pipe 11 is positioned in the channel of the second pipe 12, the diameter of the first pipe 11 is smaller than that of the second pipe 12, and a certain gap is formed between the first pipe 11 and the second pipe 12; the first end of the first pipeline 11 and the first end of the second pipeline 12 are respectively installed on the multi-way tailstock 13; the multi-way tailstock 13 has an insertion pipe 131 and a first fluid pipe 132, the insertion pipe 131 is communicated with the first pipe 11, and the first fluid pipe 132 is communicated with the second pipe 12.
When the balloon catheter reaches the stenotic aortic valve, a filling fluid, such as liquid or gas, is adapted to enter the second space 30 between the first and second balloons 2, 3 through the gaps between the first fluid conduit 132, the second conduit 12 and the first conduit 11, so that the second balloon 3 expands outwards to open the stenotic aortic valve.
The length extension direction of the insertion pipe 131 of the multi-way tailstock 13 is the same as the length extension direction of the first pipe 11; the first fluid pipe 132 is located at one side of the insertion pipe 131, and has an inclined angle with the insertion pipe 131.
With reference to the description accompanying fig. 1 and 2, the length of the first duct 11 is greater than the length of the second duct 12. A first end of the first balloon 2 is mounted to the first conduit 11 and a second end of the first balloon 2 is mounted to the tip 14. A first end of said second balloon 3 is mounted to said second duct 12 and a second end of said second balloon 3 is mounted to said tip 14; that is, in the preferred embodiment, the second ends of the first and second balloons 2, 3 are mounted to the tip 14, respectively. It will be appreciated that the second end of the first balloon 2 and the second end of the first balloon 3 can be mounted to the tip 14 at the same time, so that the efficiency of the balloon catheter processing can be improved.
Preferably, the second end of the first balloon 2 is mounted to the tip 14 by welding, and the first end of the first balloon 2 is mounted to the outer wall of the first pipe 11 by welding; a first end of the second capsule 3 is mounted to the second conduit 12 by welding and a second end of the second capsule 3 is mounted to the tip 14 by welding. It will be appreciated that the two ends of the first balloon 2 and the two ends of the second balloon 3 can also be mounted to the catheter body 1 by other means, such as gluing, and the specific manner in which the two ends of the first balloon 2 and the two ends of the second balloon 3 are mounted to the catheter body 1 should not be construed as limiting the invention.
Referring to the description to fig. 1, the balloon catheter is shown in a deflated state; referring to the description to fig. 2, the balloon catheter is shown in an inflated state. When the balloon catheter is in the collapsed state, the balloon catheter is transvascularly delivered to a stenotic aortic valve. After the balloon catheter is delivered to the stenotic aortic valve opening, the second space 30 between the first and second balloons 2 and 3 is filled with a fluid such as liquid or gas through the first fluid conduit 132, the gap between the first conduit 11 and the second conduit 12, so that the second balloon 3 is expanded outward to expand the aortic valve. After the aortic valve is expanded, the fluid such as liquid or gas in the second space 30 is discharged through the gap between the first tube 11 and the second tube 12, the first fluid tube 132, so that the balloon catheter is retracted from the expanded state to the contracted state. After the balloon catheter is retracted from the expanded state to the contracted state, the balloon catheter is deflated and withdrawn from the body through the blood vessel from the aortic valve.
The catheter body 1 further comprises two positioning members 15. The positioning member 15 is mounted on an outer side wall of the first duct 11, and the positioning member 15 is located in the first space 20 surrounded by the first capsule 2. The positioning member 15 is used to position the balloon catheter after the balloon catheter is inserted into the patient. Preferably, the positioning member 15 is implemented as two developing rings, and the developing rings are sleeved on the outer side wall of the first pipe 11 or formed inside the first pipe 11, so that the balloon catheter can be detected no matter what angle the balloon catheter exists in the patient, and the accuracy of determining the position of the balloon catheter can be improved.
Referring to the attached drawing 1 of the specification, when the balloon catheter is in a contracted state, the first balloon 2 is folded along the length direction of the first pipeline 11, so that the volume of the space occupied by the first balloon 2 can be increased, the volume of the second space 30 can be further reduced, the volume of the fluid such as liquid or gas filled in the second space 30 can be further reduced, and the time occupied by filling and discharging the fluid such as gas or liquid can be reduced.
Example two
Referring to fig. 3 of the specification, the diameter of the first conduit 11 is smaller than the diameter of the tip 14. In a second preferred embodiment of the invention, the diameter of the first end of the first balloon 2 is smaller than the diameter of the second end of the first balloon 2, and the first space 20 surrounded by the first balloon 2 is a conical space. The first space 20 having a tapered shape is filled with a predetermined volume of gas, so that when the second space 30 is filled with a fluid such as gas or liquid, the first space 20 does not disappear due to the first capsule 2 being completely compressed by the liquid or gas, and the volume of the gas or liquid filled in the second space 30 is reduced when the second capsule 3 is expanded to the same volume. Preferably, the first space 20 surrounded by the first capsule 2 is filled with a predetermined volume of filling material, preferably a gas. Optionally, the first capsule 2 is made of a hard material, such as plastic, hard polymer material, etc., so as to further reduce the size of the first capsule 2 compressed and deformed by the fluid, such as gas or liquid, filled in the second space 30, and reduce the liquid or gas filled in the second space 30.
EXAMPLE III
Referring to the description to fig. 4, a third preferred embodiment of the balloon catheter is shown, in which both ends of the second balloon 3 are mounted on the outer side wall of the first conduit 11; the second end of the second capsule 3 is mounted to the second conduit 12 and the first end of the second capsule 3 is mounted to the tip 14. In the first modified embodiment, the first balloon 2 and the second balloon 3 are separated from each other, so that after the second space 30 between the first balloon 2 and the second balloon 3 is filled with a fluid such as gas or gas, the second balloon 3 can be expanded outward more uniformly, thereby improving the effect of expanding the aortic valve. Preferably, said first capsule 2 is located in the middle of the portion of said first duct 11 beyond said second duct 12.
Example four
Referring to the description of fig. 5 and 6, there is shown a fourth preferred embodiment of the balloon catheter, which in this preferred embodiment is substantially identical to the above-described preferred embodiment, except that in the third preferred embodiment, the catheter body 1 further comprises a third tube 16, the tailstock 13 further comprises a second fluid tube 133, the third tube 16 is mounted to the tailstock 13, and the third tube 16 is located between the first tube 11 and the second tube 12, forming a first gap between the third tube 16 and the first tube 11, and forming a second gap between the third tube 16 and the second tube 12; a first end of the first balloon 2 is mounted to the third conduit 16 and a second end of the first balloon 2 is mounted to the tip 14.
It should be noted that in the fourth preferred embodiment, the first space 20 surrounded by the first balloon 2 and the second space 30 between the first balloon 2 and the second balloon 3 can be respectively filled with fluid such as liquid or gas, so as to reduce the time for the third balloon 3 to expand and contract, thereby reducing the time for the aortic valve orifice to be blocked and reducing the occurrence of surgical complications.
In particular, a fluid, such as a liquid or a gas, is adapted to enter the second space 30 through a second gap between the first fluid conduit 132, the second conduit 12 and the third conduit 16; a fluid, such as a liquid or a gas, is adapted to enter the first space 20 through the second fluid conduit 133, the gap between the first conduit 11 and the third conduit 16.
When the balloon catheter is switched from the contracted state to the expanded state, the first fluid pipe 132 and the second fluid pipe 133 are simultaneously filled with fluid such as gas or liquid, so that the first balloon 2 and the second balloon 3 are simultaneously expanded outwards, and the two fluid channels are filled with liquid or gas, thereby shortening the time required for filling with liquid or gas and reducing the time required for switching the balloon catheter from the contracted state to the expanded state.
Accordingly, when the balloon catheter is switched from the inflated state to the deflated state, the fluid such as liquid or gas in the second space 30 is discharged from the first fluid conduit 132, and simultaneously, the fluid such as liquid or gas in the first space 20 is discharged from the second fluid conduit 133. That is, the fluid such as liquid or gas is discharged from the two channels, so that the time for discharging the fluid such as liquid or gas can be shortened to reduce the time for the balloon catheter to transition from the inflated state to the deflated state.
Preferably, the first capsule 2 and the second capsule 3 are filled with the same type of fluid, for example with a gas or a liquid simultaneously inside the first capsule 2 and the second capsule 3. Optionally, the type of fluid filled in the first capsule 2 and the second capsule 3 is different, for example, the first capsule 2 is filled with liquid while the second capsule 3 is filled with gas; or the first capsule 2 is filled with gas and the second capsule 3 is filled with liquid at the same time. It will be appreciated that when the first balloon 2 is filled with gas and the second balloon 3 is filled with liquid, the liquid in the second balloon 3 can apply a squeezing force to the first balloon 2 when the balloon catheter is switched from the inflated state to the deflated state, so that the gas in the first balloon 2 can be rapidly discharged, and the time for switching the balloon catheter from the inflated state to the deflated state can be increased.
Referring to the accompanying drawings 5 and 6 of the specification, preferably, the length of the third pipe 16 is greater than that of the second pipe 12 and less than that of the first pipe 11, and one end of the third pipe 16 far away from the tailstock 13 extends out of the second pipe 12, so that a first end of a second bladder 3 is mounted at one end of the third pipe 16 far away from the tailstock 13. Optionally, the length of the third conduit 16 can also coincide with the length of the second conduit 12, and the length of the third conduit 16 should not constitute a limitation of the present invention.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. A balloon catheter, comprising:
the catheter comprises a catheter main body, a catheter main body and a catheter tail seat, wherein the catheter main body comprises a first pipeline, a second pipeline, a tip end and a multi-way tail seat, one end of the first pipeline and one end of the second pipeline are respectively installed on the multi-way tail seat, the second channel is located on the outer side of the first channel, a certain gap is formed between the first pipeline and the second pipeline, and the tip end is installed at the other end of the first pipeline; the multi-way tailstock comprises an insertion pipe and a first fluid pipe, wherein the insertion pipe is communicated with the first pipe, and the first fluid pipe is communicated with the second pipe;
a balloon comprising a first balloon and a second balloon, one end of the second balloon being mounted to the second conduit and the other end being mounted to the tip, the first balloon being located within a space surrounded by the second balloon, the first balloon being surrounded to form a first space, a second space being formed between the first balloon and the second balloon, a liquid or gas being adapted to enter the second space through the first fluid conduit and the second conduit.
2. A balloon catheter according to claim 1, wherein said first space surrounded by said first balloon has a quantity of gas or liquid therein.
3. A balloon catheter according to claim 2, wherein the first balloon is mounted at one end to the first conduit and at the other end to the tip, at least a portion of the first conduit being located within the first space.
4. A balloon catheter according to claim 2, wherein both ends of the first balloon are respectively mounted to the first tubes, at least a portion of the first tubes being located in the first space.
5. A balloon catheter according to claim 3 or 4, wherein the first balloon is folded along a direction in which the first tube length extends.
6. The balloon catheter of claim 1, wherein the catheter body further comprises a third tube positioned between the first tube and the second tube with a first gap therebetween, the third tube and the second tube with a second gap therebetween, the third tube having one end mounted to the manifold block and a first end of the first balloon mounted to the other end of the third tube; the multiway tailstock further comprises a second fluid conduit in communication with the third conduit, a liquid or gas being adapted to enter the first bladder through the second fluid conduit, the first gap; a liquid or gas is adapted to enter the second bladder through the first fluid conduit, the second gap.
7. The balloon catheter of claim 6, wherein the third conduit has a length greater than the second conduit and less than the first conduit.
8. A balloon catheter according to any of claims 1, 2, 3, 4, 6, or 7, wherein the second balloon is made of a polymeric elastic material.
9. A balloon catheter according to claim 8, wherein said catheter body further comprises a positioning member mounted to said first conduit and located within a space surrounded by said second balloon for determining the position of the balloon catheter.
10. A balloon catheter according to claim 9, wherein said positioning member is a visualization ring fitted around a peripheral wall of said first conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010391930.XA CN111437495A (en) | 2020-05-11 | 2020-05-11 | Balloon catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010391930.XA CN111437495A (en) | 2020-05-11 | 2020-05-11 | Balloon catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111437495A true CN111437495A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010391930.XA Pending CN111437495A (en) | 2020-05-11 | 2020-05-11 | Balloon catheter |
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| Country | Link |
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| CN (1) | CN111437495A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6719720B1 (en) * | 1997-09-06 | 2004-04-13 | Wolfram Voelker | Balloon catheter |
| US20050015047A1 (en) * | 2003-07-18 | 2005-01-20 | Shah Tilak M. | Inflatable dual balloon catheter |
| CN101822866A (en) * | 2009-03-02 | 2010-09-08 | 东莞市迪凯精密管材有限公司 | Dual balloon hemangiectasis catheter |
| CN212491102U (en) * | 2020-05-11 | 2021-02-09 | 上海纽脉医疗科技有限公司 | Balloon catheter |
-
2020
- 2020-05-11 CN CN202010391930.XA patent/CN111437495A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6719720B1 (en) * | 1997-09-06 | 2004-04-13 | Wolfram Voelker | Balloon catheter |
| US20050015047A1 (en) * | 2003-07-18 | 2005-01-20 | Shah Tilak M. | Inflatable dual balloon catheter |
| CN101822866A (en) * | 2009-03-02 | 2010-09-08 | 东莞市迪凯精密管材有限公司 | Dual balloon hemangiectasis catheter |
| CN212491102U (en) * | 2020-05-11 | 2021-02-09 | 上海纽脉医疗科技有限公司 | Balloon catheter |
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