CN216725489U - Three-balloon catheter assembly - Google Patents
Three-balloon catheter assembly Download PDFInfo
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- CN216725489U CN216725489U CN202122673728.9U CN202122673728U CN216725489U CN 216725489 U CN216725489 U CN 216725489U CN 202122673728 U CN202122673728 U CN 202122673728U CN 216725489 U CN216725489 U CN 216725489U
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- balloon
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- tube
- catheter assembly
- catheter body
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Abstract
The utility model discloses a three-balloon catheter assembly, comprising: the catheter comprises a catheter body (3), a first tube seat (1) and a second tube seat (2) which are arranged at one end of the catheter body (3) in parallel, and a first balloon (4), a second balloon (5) and a third balloon (6) which are arranged on the catheter body (3) in sequence; the first tube seat (1) is respectively communicated with the first balloon (4) and the third balloon (6) through an internal pipeline of the catheter body (3); the second pipe seat (2) is communicated with a through pipeline and axially penetrates through the catheter body (3) to reach the other end; the bypass of the second pipe seat (2) is provided with another internal pipeline communicated with the second balloon (5). The utility model has simple structure, convenient operation and easy mastering. The utility model can quickly position and realize the expansion of the bent blood vessel.
Description
Technical Field
The utility model relates to the manufacturing technology of medical instruments, in particular to a three-balloon catheter assembly.
Background
Stroke, also known as stroke or cerebrovascular Accident (CVA), is an acute cerebrovascular disease, which is a group of diseases that causes damage to brain tissue due to sudden rupture of Cerebral vessels or blood flow failure into the brain due to vessel occlusion, including ischemic and hemorrhagic stroke.
The investigation shows that the number of people dying from stroke in China exceeds the number of tumor and cardiovascular diseases every year, and the disease becomes the first cause of death. Treatment in the acute phase is of paramount importance for the prognosis of stroke patients. The traditional treatment methods mainly comprise drug treatment and surgical treatment. However, because of the complex structure of intracranial blood vessels, these treatment methods have great limitations, and thus the treatment effect is not good. With the rapid development of interventional therapy, the interventional therapy technology of intracranial vascular diseases is more and more advanced, and methods such as intracranial vascular stent forming and the like bring great benefits to patients.
However, a curved and stenotic blood vessel is often encountered during the operation, and when the balloon dilatation catheter is used for pre-dilating the curved and stenotic blood vessel, the balloon dilatation catheter and the curved and calcified blood vessel are not matched in shape, so that the blood vessel is seriously deformed and damaged during the pre-dilation. Therefore, high technical requirements are required for the balloon dilatation catheter, and the balloon dilatation catheter not only needs to have good delivery performance and retraction performance, but also needs to have good shape matching performance with the curved blood vessel, but at present, a proper special balloon catheter product is difficult to find.
SUMMERY OF THE UTILITY MODEL
In view of the above, the main objective of the present invention is to provide a three-balloon catheter assembly, which can match the shape of the balloon catheter and the curved blood vessel when pre-dilating the curved calcified stenotic blood vessel, so as to avoid serious deformation and damage of the blood vessel. In order to achieve the purpose, the technical scheme of the utility model is as follows:
a three balloon catheter assembly comprising: the catheter comprises a catheter body, a first tube seat, a second tube seat, a first balloon, a second balloon and a third balloon, wherein the first tube seat and the second tube seat are arranged at one end of the catheter body in parallel;
the first tube seat is respectively communicated with the first balloon and the third balloon through an internal pipeline of the catheter body; the second pipe seat is communicated with a through pipeline and axially penetrates through the catheter body to reach the other end;
the bypass of the second tube seat is also provided with another internal pipeline communicated with the second balloon.
Wherein: the first balloon is fixedly provided with a first developing mark, the third balloon is fixedly provided with a third developing mark, and a plurality of second developing marks are arranged at two ends of the second balloon.
The first tube seat is communicated with the first balloon and the third balloon through an inner pipeline of the catheter body respectively, and specifically comprises: the first tube seat is provided with a first filling tube with one open end, and the first filling tube is communicated with the interior of a first filling channel in the catheter body; a first filling opening is formed in the first balloon, and a third filling opening is formed in the third balloon; the first filling tube communicates with the first filling opening and the third filling opening through a first filling passage, respectively.
The bypass of second tube socket be equipped with another inside pipeline with the second sacculus intercommunication specifically is: the outside bypass of second tube socket is equipped with the second and is full of the pipe, the second is full of the pipe pass through the second in the pipe body is full of the passageway even with the inside intercommunication of second sacculus, in the second sacculus the second is full of the passageway and is gone up and seted up a plurality of second and full of the mouth, with second sacculus intercommunication.
The second tube seat is communicated with a through pipeline and axially penetrates through the catheter body to reach the other end, and the second tube seat specifically comprises: and a wire guide pipe with one open end is arranged in the second pipe seat, and the wire guide pipe is communicated with a wire guide channel in the catheter body.
In a cross-section of the catheter body: the section of the first filling channel and/or the second filling channel is crescent or circular; the cross section of the guide wire channel is circular.
The first filling pipe is connected, liquid filling medium is conveyed into the first balloon through a first filling opening of the first filling channel and into the third balloon through a third filling opening, and the first balloon and the third balloon can be inflated and opened.
And the second filling pipe is connected, and liquid filling medium is conveyed into the second balloon through a plurality of second filling ports of the second filling channel, so that the second balloon can be expanded and opened.
The first sacculus and the third sacculus are compliance sacculus, and the cross-section of the first sacculus and the third sacculus is in a petal structure.
The second balloon is a non-compliant balloon having a long arc shape.
The three-balloon catheter assembly of the utility model has the following beneficial effects:
1) the utility model discloses an in being applied to intracranial vascular stent plasty, when using this three sacculus pipe subassembly to crooked calcified constrictive blood vessel to carry out the pre-expansion, can make long arc sacculus and crooked blood vessel match each other to reduce the damage to blood vessel.
2) By applying the three-balloon catheter assembly, the balloons at the two ends are inflated and positioned, and the blood flow can normally pass through the balloons at the two ends due to the petal shapes of the balloons at the two ends, so that the influence of plugging on the cerebral blood flow is reduced. After the saccules at the two ends are positioned, the middle saccule can be better matched with the shape of the bent blood vessel after being filled, so that the blood vessel expansion effect is better, and the operation process is safer and more reliable.
Drawings
FIG. 1 is a schematic structural view of a three balloon catheter assembly of the present invention;
FIG. 2 is a schematic cross-sectional view of a three balloon catheter assembly of the present invention;
FIG. 3a is a first schematic sectional view of the body of the triple balloon catheter assembly of the present invention taken along the line A-A;
FIG. 3b is a schematic sectional view of the main body of the triple balloon catheter assembly of the present invention taken along the line A-A;
FIG. 3c is a schematic cross-sectional view of the body of the triple balloon catheter assembly of the present invention taken along the line A-A;
FIG. 4a is a schematic view of a first balloon of a three-balloon catheter assembly of the present invention in cross-section along direction B-B;
FIG. 4B is a schematic cross-sectional view of the first balloon of the three-balloon catheter assembly of the present invention along the direction B-B;
FIG. 4c is a schematic cross-sectional view of the first balloon of the triple-balloon catheter assembly of the present invention taken along line B-B;
FIG. 5 is a schematic view of a second balloon of a three-balloon catheter assembly of the present invention;
FIG. 6 is a schematic view of a curved vessel during pre-dilation using a three balloon catheter assembly of the present invention;
FIG. 7 is a schematic view of the first balloon and the third balloon inflated during use of the three balloon catheter assembly in the tortuous vessels shown in FIG. 6;
fig. 8 is a schematic view of the inflated state of the second balloon when the three-balloon catheter assembly is used in a tortuous vessel as shown in fig. 6.
[ main component/part symbol description ]
1 first tube seat
11 first filling tube 31 first filling passage 311 first filling orifice 312 third filling orifice
2: second tube holder
21: guide wire tube 32: guide wire channel
22 second filling tube 33 second filling passage 331/332 second filling orifice
3: the catheter body 4: first balloon
5: second balloon 51: first balloon leg 52: the balloon body 53: second balloon leg
6: third balloon 7: first development mark 8: second development mark 9: and a third development mark.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings and embodiments thereof.
For purposes of illustrating and describing embodiments of the present invention more clearly, reference is made to one or more of the drawings, but the additional details or examples used to describe the drawings are not intended to limit the scope of any of the inventive concepts of the present application, the presently described embodiments, or the preferred versions. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
In the present invention, "proximal" generally refers to a direction close to the balloon catheter operator; "distal" refers to a direction away from the operator of the balloon catheter.
FIG. 1 is a schematic view of a three balloon catheter assembly of the present invention.
As shown in fig. 1, the three-balloon catheter assembly comprises: a first stem 1, a second stem 2, a catheter body 3, a first balloon 4, a second balloon 5, a third balloon 6, a first development mark 7, a second development mark 8, and a third development mark 9.
Wherein: the first tube holder 1 and the second tube holder 2 are fixedly connected with the catheter body 3, and no mutually communicated channel exists between the first tube holder 1 and the second tube holder 2.
The first balloon 4 is located at the proximal end of the catheter body 3; the second balloon 5 is positioned at the middle section of the catheter body 3; the third balloon 6 is located at the distal end of the catheter body 3. The first balloon 3 and the third balloon 6 are of the same size (diameter). The second balloon 5 has a size (e.g., diameter) slightly smaller than the first balloon 3 and the third balloon 6, but has the same diameter when inflated.
The first developing marks 7 are fixed at the first balloon 4, and the number of the first developing marks 7 is 1; the second developing marks 8 are fixed at the second balloon 5, and the number of the second developing marks 8 is 2; the third developing marks 9 are fixed at the third balloon 6, and the number of the third developing marks 9 is 1.
FIG. 2 is a schematic cross-sectional view of a three balloon catheter assembly of the present invention.
As shown in fig. 2, in the three-balloon catheter assembly, a first filling tube 11 with a proximal opening is arranged in the first tube holder 1, and the first filling tube 11 is communicated with the interior of the first filling channel 31 of the catheter body 3. A first filling opening 311 is provided in the first balloon 4. A third filling opening 312 is provided in the third balloon 6. The first filling tube 11 communicates with the first filling port 311 and the third filling port 312 via a first filling passage 31, respectively.
The second tube holder 2 is provided with a guide wire tube 21 with an opening at the near end, the guide wire tube 21 is communicated with a guide wire channel 32 in the catheter body 3, and the guide wire channel 32 is used as a passage for guide wires to pass through in the operation.
The external bypass of the second tube holder 2 is further provided with a second filling tube 22, and the second filling tube 22 is communicated with a second filling channel 33 in the catheter body 3 and is communicated with the inside of the second balloon 5. A second plurality of filling ports 331, 332 are located in the second balloon 5, the second filling tube 22 communicating with the plurality of filling ports 331, 332 via a second filling passage 33. Two second development marks 8 are provided at both ends of the plurality of filling ports 331, 332, respectively.
FIG. 3a is a first schematic sectional view of the main body A-A of the triple balloon catheter assembly of the present invention. FIG. 3b is a schematic sectional view of the main body A-A of the triple balloon catheter assembly of the present invention. FIG. 3c is a schematic sectional view of the main body A-A of the triple balloon catheter assembly of the present invention.
In the sectional structure of the catheter body taken along the line a-a shown in fig. 3a, the first filling passage 31 of the catheter body 3 has a crescent cross section, and the first filling passage 31 is communicated with the first filling tube 11 of the first hub 1 and the interior is communicated with the first filling port 311 and the third filling port 312 respectively.
The cross section of the second filling passage 33 in the catheter body 3 is also crescent-shaped, and the second filling tube 22 is communicated with the second filling passage 33 in the catheter body 3 and is communicated with the inside of the second balloon 5 through a plurality of second filling ports 331 and 332.
In the catheter body 3, the cross section of the guide wire channel 32 is circular. The guide wire channel 32 is communicated with the guide wire tube 21 of the second tube holder 2 and is used as a passage through which a guide wire passes in an operation.
In another embodiment as shown in fig. 3b, the cross-sectional shape of the first filling passage 31 is elliptical; the cross-sectional shape of the second filling passage 33 is also elliptical.
In yet another embodiment, as shown in fig. 3c, the cross-sectional shape of the first filling passage 31 is circular; the cross-sectional shape of the second filling passage 33 is also circular.
FIG. 4a is a schematic view of a first balloon B-B directional cross-sectional structure of the three-balloon catheter assembly of the present invention. FIG. 4B is a schematic view of the cross-sectional structure of the first balloon B-B of the three-balloon catheter assembly of the present invention. FIG. 4c is a schematic cross-sectional view of the first balloon of the three-balloon catheter assembly of the present invention along the direction B-B.
As shown in fig. 4a, in the B-B cross-sectional structure of the first balloon 4 (like the third balloon 6), the cross-sections of the first balloon 4 and the third balloon 6 are in a petal structure, a three-petal structure is shown in fig. 4a, a four-petal structure is shown in fig. 4B, and a six-petal structure is shown in fig. 4 c. In the operation, the petal structures arranged on the first balloon 4 and the third balloon 6 can make normal blood flow pass through so as to reduce the influence of the operation on blood supply of the blood vessel.
FIG. 5 is a schematic view of a second balloon of a three balloon catheter assembly of the present invention.
As shown in fig. 5, the second balloon 5 includes a first balloon leg 51, a second balloon leg 53, and a balloon body 52. The balloon body 52 is arcuate in shape. The first and second balloon legs 51, 53 are cylindrical in shape.
The operation of the three-balloon catheter assembly of the present invention will be described with reference to fig. 6, 7 and 8 and the following embodiments:
FIG. 6 is a schematic view of a curved vessel during pre-dilation using a three balloon catheter assembly of the present invention. Fig. 7 is a schematic view showing the first balloon and the third balloon inflated state when the three-balloon catheter assembly is applied to a curved vessel as shown in fig. 6. FIG. 8 is a schematic view of the inflated state of the second balloon of the three balloon catheter assembly in use in the curved vessel shown in FIG. 6.
As shown in fig. 6, plaque generated due to a lesion exists in a curved blood vessel.
Referring to fig. 7, firstly, the three-balloon catheter assembly is delivered to the lesion position of the curved blood vessel by an interventional operation, it is determined that the two second visualization marks 8 of the second balloon 5 are located at the plaque position, and then a liquid medium is injected into the first balloon 4 and the third balloon 6 of the three-balloon catheter assembly through the first filling port 311 and the third filling port 312 by using a pressure device, so that the first balloon 4 and the third balloon 6 are filled, and the filled first balloon 4 and the filled third balloon 6 can pass normal blood flow due to the petal structures, and the blood supply at the far end is not affected. At this time, the three-balloon catheter assembly is fixed such that the second balloon 5 is located at the middle position of the curved blood vessel.
Referring to fig. 8, a liquid medium is then injected into the second balloon 5 of the three-balloon catheter assembly through the second filling tube 22, the second filling passage 33 and the second filling ports 331 and 332 by using the pressure device, so that the second balloon 5 is filled, the curved blood vessel is expanded by using the second balloon 5 after being filled, and the damage to the blood vessel can be reduced because the second balloon 5 after being filled is matched with the shape of the curved blood vessel.
In the three-balloon catheter assembly of the utility model, the first balloon 4 and the third balloon 6 are compliant balloons, the second balloon 5 is a non-compliant balloon, and the material of the non-compliant balloon is any one or a combination of more of silicon rubber, synthetic rubber, polyurethane or latex.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A triple balloon catheter assembly, comprising: the catheter comprises a catheter body (3), a first tube seat (1), a second tube seat (2), a first sacculus (4), a second sacculus (5) and a third sacculus (6), wherein the first tube seat (1) and the second tube seat (2) are arranged at one end of the catheter body (3) in parallel, and the first sacculus, the second sacculus and the third sacculus (6) are sequentially and axially arranged on the catheter body (3); the first tube seat (1) is respectively communicated with the first balloon (4) and the third balloon (6) through an internal pipeline of the catheter body (3); the second pipe seat (2) is communicated with a through pipeline and axially penetrates through the catheter body (3) to reach the other end; the bypass of the second pipe seat (2) is also provided with another internal pipeline communicated with the second balloon (5).
2. A three-balloon catheter assembly according to claim 1, wherein a first visualization mark (7) is fixedly arranged at the first balloon (4), a third visualization mark (9) is fixedly arranged at the third balloon (6), and a plurality of second visualization marks (8) are arranged at both ends of the second balloon (5).
3. A triple-balloon catheter assembly according to claim 1, wherein the first hub (1) communicates with the first balloon (4) and the third balloon (6) respectively through an internal conduit of the catheter body (3), in particular: the first tube seat (1) is provided with a first filling tube (11) with one open end, and the first filling tube (11) is communicated with the interior of a first filling channel (31) in the catheter body (3); a first filling opening (311) is formed in the first balloon (4), and a third filling opening (312) is formed in the third balloon (6); the first filling tube (11) communicates with the first filling opening (311) and the third filling opening (312) via a first filling passage (31), respectively.
4. A triple-balloon catheter assembly according to claim 1, wherein the bypass of the second tube socket (2) is provided with another internal conduit communicating with the second balloon (5), in particular: the outside bypass of second tube socket (2) is equipped with second full filling pipe (22), second full filling pipe (22) pass through second full filling passageway (33) in catheter body (3) even with the inside intercommunication of second sacculus (5), in second sacculus (5) second full filling passageway (33) is last to have seted up a plurality of second and is full of mouthful (331, 332), with second sacculus (5) intercommunication.
5. A triple-balloon catheter assembly according to claim 1, wherein the second hub (2) communicates through a conduit axially through the catheter body (3) to the other end, in particular: be equipped with one end open-ended wire guide tube (21) in second tube socket (2), wire guide tube (21) with seal wire passageway (32) through connection in pipe body (3).
6. A triple balloon catheter assembly according to any of claims 1, 3, 4 or 5, characterized in that the cross-section of the catheter body (3) is such that: the cross section of the first filling channel (31) and/or the second filling channel (33) is crescent or circular; the guide wire channel (32) is circular in cross-section.
7. A triple-balloon catheter assembly according to claim 3, wherein the first filling tube (11) is connected to deliver liquid filling medium into the first balloon (4) through the first filling port (311) of the first filling channel (31) and into the third balloon (6) through the third filling port (312) to enable inflation of the first and third balloons (4, 6) open.
8. A triple balloon catheter assembly according to claim 4 wherein the second filling tube (22) is connected to deliver liquid filling medium into the second balloon (5) through a plurality of second filling ports (331, 332) of a second filling passage (33) enabling inflation of the second balloon (5) open.
9. A triple balloon catheter assembly according to any of claims 1, 2 or 3 wherein the first and third balloons (4, 6) are compliant balloons, the cross-section of the first and third balloons (4, 6) being in the configuration of petals.
10. A triple balloon catheter assembly according to claim 1 or 4 wherein the second balloon (5) is a non-compliant balloon having a long arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122673728.9U CN216725489U (en) | 2021-11-03 | 2021-11-03 | Three-balloon catheter assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122673728.9U CN216725489U (en) | 2021-11-03 | 2021-11-03 | Three-balloon catheter assembly |
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| Publication Number | Publication Date |
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| CN216725489U true CN216725489U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122673728.9U Active CN216725489U (en) | 2021-11-03 | 2021-11-03 | Three-balloon catheter assembly |
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| CN (1) | CN216725489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115644983A (en) * | 2022-10-17 | 2023-01-31 | 翌铭科技(广州)有限公司 | Blood vessel ultrasonic expansion integrated device |
-
2021
- 2021-11-03 CN CN202122673728.9U patent/CN216725489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115644983A (en) * | 2022-10-17 | 2023-01-31 | 翌铭科技(广州)有限公司 | Blood vessel ultrasonic expansion integrated device |
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