CN218484993U - Adjustable curved balloon catheter - Google Patents
Adjustable curved balloon catheter Download PDFInfo
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- CN218484993U CN218484993U CN202220713057.6U CN202220713057U CN218484993U CN 218484993 U CN218484993 U CN 218484993U CN 202220713057 U CN202220713057 U CN 202220713057U CN 218484993 U CN218484993 U CN 218484993U
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- pipe
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- elastic component
- catheter
- head end
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Abstract
The utility model discloses an adjustable curved sacculus pipe, including the pipe, set up at the outside sacculus of pipe, set up in the outside liquid gas pipe of pipe, the adjustable head end of pipe is through the bulk phase connection of extendible elastic component and pipe, and the elastic component is provided with the multiunit, connects in the opposite face of pipe with adjustable head end, and along the circumference cross-section evenly distributed of adjustable head end, and the elastic component is the cavity structure, and the elastic component is connected with the inside feed liquor pipe of pipe. The device evenly is provided with a plurality of elastic components in the circumferencial direction of sacculus pipe to can be according to the vascular bending, select the elastic component of suitable position, make the feed liquor pipe make its extension to the inside topping up of elastic component through the control valve, do not need the doctor to apply extra power to the sacculus pipe, make things convenient for the doctor to operate, the accessible changes the flow of feed liquor simultaneously, the realization is to the control of elastic component extension length, the realization is to the accurate regulation of bending, the probability of the damage of reduction vascular wall.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to an adjustable curved sacculus pipe.
Background
Atherosclerosis, dissection or vascular pathologies associated with development, inflammation and autoimmunity can lead to stenosis in blood vessels such as the carotid artery and intracranial artery. The current common surgical methods for treating vascular stenosis include balloon dilatation and stent implantation. The balloon catheter is a common medical device and is commonly used for interventional or implantation treatment of vascular stenosis. The principle is that a pressure pump or an inflator and other devices are used at the near end, liquid or gas is injected into a polymer balloon with certain compliance through an internal liquid-gas channel, so that the balloon is expanded under the action of the pressure of the liquid or the gas, the stenosis is expanded, and the purpose of treating the stenosis is achieved.
The saccule catheter generally enters a human blood vessel along an interventional path established by a guide wire, and the bending shape of the far end of the saccule catheter cannot be adjusted, so that the saccule catheter cannot be adaptively changed according to the bending shape of the blood vessel, the conveying smoothness is poor, the tortuous blood vessel can be damaged, and unpredictable risks are brought to a patient.
The existing bendable catheter, such as the publication number WO2020134219A1, the publication number WO2018130074A1, the publication number CN210785929U and the like, have certain differences in structure, but basically the same bending principle, and the adjustment of the bending shape of the distal end is realized by applying a certain force to a pulling wire connected to a flexible section of the distal end at the proximal end, but the adjustment by applying an external force through the pulling wire has the following problems:
1. the traction force is transmitted to the far end through a long path, certain loss exists in the process, large force is usually applied to the near end, bending is difficult to adjust, and the operation of a doctor is inconvenient;
2. the bending is adjusted by the doctor manually, and the size of the bending that forms relies on doctor's feeling, leads to adjusting roughly, and the precision is relatively poor, and the improper operation probably leads to distal end damage vascular wall and even causes the vascular wall perforation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a balloon catheter with adjustable bending.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an adjustable bending balloon catheter comprises a catheter, a balloon arranged outside the catheter and a liquid-gas tube arranged outside the catheter, wherein an adjustable head end of the catheter is connected with a main body of the catheter through an extensible elastic piece;
the elastic component is provided with a plurality of groups, is connected to the opposite surface of the pipe with the adjustable head end, and follows the circumference cross section evenly distributed of the adjustable head end, the elastic component is of a cavity structure, just the elastic component with the inside feed liquor pipe of pipe is connected, through the feed liquor pipe is to one of them group the elastic component fills water and makes its expansion extension, makes the adjustable head end take place to buckle.
As a further description of the above technical solution: the elastic component is arranged in the bending section, the bending section is of a cavity structure, the wall thickness of the bending section is far smaller than the diameter of the catheter, and the bending section is made of a high polymer elastomer material capable of being stretched and compressed.
As a further description of the above technical solution: the elastic part is made of a semi-compliant material, and the wall thickness of one end, close to the adjustable head end, of the elastic part is smaller than that of one end, close to the catheter.
As a further description of the above technical solution: the elastic pieces are arranged into four groups or the number of the groups is integral multiple of four.
As a further description of the above technical solution: the liquid gas pipe is connected with the saccule through a liquid gas channel arranged inside the catheter.
As a further description of the above technical solution: and the outside of the liquid air pipe is connected with an inflation valve.
As a further description of the above technical solution: the multiple groups of liquid inlet pipes are connected with the liquid-gas pipes.
As a further description of the above technical solution: the size of one side of the elastic element close to the adjustable head end is smaller than that of one side close to the catheter.
As a further description of the above technical solution: and a suction device is connected outside the filling valve.
As a further description of the above technical solution: the outside of every elastic component all is connected with the feed liquor pipe, the outside connection of feed liquor pipe has the control valve.
The utility model discloses following beneficial effect has:
1. the utility model discloses an evenly be provided with a plurality of elastic components at the circumferencial direction of sacculus pipe to can be according to the blood vessel bending, select the elastic component of suitable position, make the feed liquor pipe make its extension to the inside topping up of elastic component through the control valve, do not need the doctor to apply extra power to the sacculus pipe, make things convenient for the doctor to operate, the accessible changes the flow of feed liquor simultaneously, realizes the control to elastic component extension length, the realization is to the accurate regulation of bending, reduces the probability of the damage of vascular wall.
Drawings
Fig. 1 is a schematic view of an adjustable bending balloon catheter according to the present invention;
fig. 2 is a cross-sectional view of an adjustable bending balloon catheter provided by the present invention;
fig. 3 is a perspective view of an elastic member of the balloon catheter with adjustable bending according to the present invention;
fig. 4 is a cross-sectional view of the elastic member of the balloon catheter with adjustable curvature according to the present invention.
Illustration of the drawings:
1. a conduit; 2. a balloon; 3. the head end can be adjusted; 4. an elastic member; 5. bending section adjustment; 6. a filling valve; 7. a liquid gas pipe; 8. a liquid inlet pipe; 9. a control valve; 10. a suction device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides an embodiment: an adjustable bending balloon catheter comprises a catheter 1, a balloon 2 arranged outside the catheter 1, and a liquid-gas pipe 7 arranged outside the catheter 1, wherein an adjustable head end 3 of the catheter 1 is connected with a main body of the catheter 1 through an extensible elastic part 4;
According to the technical scheme, the filling valve 6 is controlled to fill liquid into one of the liquid inlet pipes 8, then the control valve 9 corresponding to the outside of the liquid inlet pipe 8 is opened, so that the liquid enters the corresponding elastic part 4 along the liquid inlet pipe 8, the elastic part 4 is made of a semi-compliant material and has a cavity structure, meanwhile, the wall thickness close to the adjustable head end 3 is smaller than the wall thickness close to the end of the catheter 1, the elastic part 4 extends after the liquid enters the elastic part 4, and the elastic parts 4 distributed at other positions of the adjustable head end 3 do not extend, so that the bending of the adjustable head end is realized, when different directions need to be rotated, the effect of adjusting the angle of the adjustable head end 3 of the balloon catheter can be flexibly realized only by opening the control valve 9 connected with the liquid inlet pipe 8 of the elastic part 4, compared with the existing control through a traction wire, no strong loss exists, the operation is more convenient, meanwhile, the flow of the liquid can be adjusted, so that the angle of the adjustable head end 3 can be changed, and the accuracy is higher.
Further, the spring 4 is arranged inside the bending adjusting section 7, the bending adjusting section 7 is of a cavity structure, the wall thickness of the bending adjusting section 7 is far smaller than the diameter of the catheter 1, and the bending adjusting section 7 is made of a stretchable and compressible high polymer elastomer material, so that the angle of the adjustable head end 3 can be adjusted in all directions without movement interference.
Further, the elastic member 4 is made of a semi-compliant material, the wall thickness of the end, close to the adjustable head end 3, of the elastic member 4 is smaller than that of the end, close to the catheter 1, of the elastic member 4, and when liquid enters the elastic member, the extension amount of the thinner end of the elastic member 4 is larger than that of the end, close to the wall thickness, of the elastic member 4, so that the elastic member 4 achieves the extension effect.
Further, elastic component 4 sets up to four groups or the group number is the integral multiple of four, therefore can be according to the blood vessel bending for balloon catheter distal end can carry out the bending in the cubical space direction and adjust, makes catheter 1 get into the target blood vessel more smoothly, reduces the damage to the vascular wall, reduces the fenestrate risk of patient vascular wall.
Further, the liquid-gas tube 7 is connected to the balloon 2 through a liquid-gas channel provided inside the catheter 1.
Further, an inflation valve 6 is connected to the outside of the liquid/gas pipe 7.
According to the technical scheme, the filling valve 9 is controlled to enable liquid or gas inside the liquid-gas tube 10 to be filled into the balloon 2, so that the balloon 2 is inflated.
Further, a plurality of groups of liquid inlet pipes 8 are connected with the liquid gas pipe 7.
Further, the size of the side of the elastic member 4 near the adjustable tip 3 is smaller than the size of the side near the catheter 1.
Further, a suction device 10 is connected to the outside of the filling valve 6, and the suction device 10 is used for controlling liquid inlet or liquid outlet.
Furthermore, the outside of every elastic component 4 all is connected with feed liquor pipe 8, and the outside of feed liquor pipe 8 is connected with control valve 9, can control every elastic component 4 alone through control valve 9.
The working principle is as follows: when the device is used, the filling valve 6 is controlled to fill liquid into one of the liquid inlet pipes 8, then the control valve 9 corresponding to the outside of the liquid inlet pipe 8 is opened, so that liquid enters the corresponding elastic part 4 along the liquid inlet pipe 8, the elastic part 4 is made of a semi-compliant material and has a cavity structure, meanwhile, the wall thickness close to the adjustable head end 3 is smaller than the wall thickness close to the end of the catheter 1, the elastic part 4 extends after the liquid enters the elastic part 4, and the elastic parts 4 distributed at other positions of the adjustable head end 3 do not extend, so that the bending of the adjustable head end is realized, when different directions need to be rotated, only the control valve 9 connected with the liquid inlet pipe 8 of the elastic part 4 at the corresponding position is needed to be opened, the effect of adjusting the angle of the adjustable head end 3 of the balloon catheter can be flexibly realized, compared with the existing control through a traction wire, no strong loss exists, meanwhile, the operation is more convenient, meanwhile, the flow of the liquid inlet can be adjusted, so that the angle of the adjustable head end 3 can be changed, and the precision is higher.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (10)
1. An adjustable-bending balloon catheter, which comprises a catheter (1), a balloon (2) arranged outside the catheter (1), and a liquid-gas tube (7) arranged outside the catheter (1), and is characterized in that: the adjustable head end (3) of the catheter (1) is connected with the main body of the catheter (1) through an extensible elastic part (4);
elastic component (4) are provided with the multiunit, connect in pipe (1) with the opposite face of adjustable head end, and follow the circumference cross-section evenly distributed of adjustable head end (3), elastic component (4) are the cavity structure, just elastic component (4) with pipe (1) inside feed liquor pipe (8) are connected, through feed liquor pipe (8) are to one of them a set of elastic component (4) fill water and make its expansion extension, make adjustable head end (3) take place to buckle.
2. The adjustable bending balloon catheter according to claim 1, wherein: elastic component (4) set up in the inside of transferring curved section (5), just transfer curved section (5) to be the cavity structure, just the wall thickness of transferring curved section (5) is far less than the diameter of pipe (1), it constitutes for the polymer elastomer material of stretching compression to transfer curved section (5).
3. The adjustable bend balloon catheter of claim 1, wherein: the elastic piece (4) is made of a semi-compliant material, and the wall thickness of one end, close to the adjustable head end (3), of the elastic piece (4) is smaller than that of one end, close to the catheter (1).
4. The adjustable bend balloon catheter of claim 3, wherein: the elastic pieces (4) are arranged into four groups or the number of the groups is integral multiple of four.
5. The adjustable bending balloon catheter according to claim 1, wherein: the liquid air pipe (7) is connected with the saccule (2) through a liquid air channel arranged inside the catheter (1).
6. The adjustable bending balloon catheter according to claim 1, wherein: the outside of the liquid air pipe (7) is connected with an inflation valve (6).
7. The adjustable bending balloon catheter according to claim 1, wherein: the liquid inlet pipes (8) are connected with the liquid gas pipe (7).
8. The adjustable bending balloon catheter according to claim 1, wherein: the size of one side of the elastic part (4) close to the adjustable head end (3) is smaller than that of one side close to the catheter (1).
9. The adjustable bending balloon catheter according to claim 6, wherein: the outside of the filling valve (6) is connected with a suction device (10).
10. The adjustable bend balloon catheter of claim 1, wherein: the outside of every elastic component (4) all is connected with feed liquor pipe (8), the outside of feed liquor pipe (8) is connected with control valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713057.6U CN218484993U (en) | 2022-03-25 | 2022-03-25 | Adjustable curved balloon catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713057.6U CN218484993U (en) | 2022-03-25 | 2022-03-25 | Adjustable curved balloon catheter |
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| Publication Number | Publication Date |
|---|---|
| CN218484993U true CN218484993U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220713057.6U Active CN218484993U (en) | 2022-03-25 | 2022-03-25 | Adjustable curved balloon catheter |
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| CN (1) | CN218484993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117563113A (en) * | 2024-01-15 | 2024-02-20 | 上海玄宇医疗器械有限公司 | Push rod adjusting mechanism and balloon catheter thereof |
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2022
- 2022-03-25 CN CN202220713057.6U patent/CN218484993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117563113A (en) * | 2024-01-15 | 2024-02-20 | 上海玄宇医疗器械有限公司 | Push rod adjusting mechanism and balloon catheter thereof |
| CN117563113B (en) * | 2024-01-15 | 2024-04-09 | 上海玄宇医疗器械有限公司 | Push rod adjusting mechanism and balloon catheter thereof |
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