CN217244651U - Suction catheter - Google Patents
Suction catheter Download PDFInfo
- Publication number
- CN217244651U CN217244651U CN202220713035.XU CN202220713035U CN217244651U CN 217244651 U CN217244651 U CN 217244651U CN 202220713035 U CN202220713035 U CN 202220713035U CN 217244651 U CN217244651 U CN 217244651U
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- Prior art keywords
- suction
- catheter
- wall
- balloon
- valve
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- 238000000034 method Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 208000007536 Thrombosis Diseases 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 10
- 208000005189 Embolism Diseases 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 abstract description 3
- 230000002792 vascular Effects 0.000 abstract description 2
- 230000001225 therapeutic effect Effects 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 7
- 230000002537 thrombolytic effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 230000002490 cerebral effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000005077 saccule Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000004026 tunica intima Anatomy 0.000 description 1
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Abstract
The utility model discloses a suction catheter, including pipe port, body, sufficient valve and suction valve, the pipe port sets up in suction catheter's farthest end, including N group's sacculus, N is greater than or equal to 3, the pipe port appears the horn mouth shape when the sacculus is in sufficient state. The port of suction catheter can become the horn mouth shape through the sacculus is full of, thereby the internal diameter of pipe port has been increased, and then the suction force of promotion suction catheter, reach better suction effect, there are better suitability and suction effect to the great thrombus of volume or hardness simultaneously, the horn mouth that suction catheter formed can furthest's seizure suction in-process produced thrombus fragment, reduce the probability of other vascular occurrences embolism, make therapeutic effect better, the security is higher.
Description
Technical Field
The utility model relates to an intervene the medical instrument field, especially relate to a suction catheter.
Background
Foreign matters in blood vessels, damaged vascular intima, blood flow change and blood property change can cause vascular embolism in heart and cerebral vessels, further cause diseases such as myocardial infarction and cerebral apoplexy, and seriously threaten the life health of patients if the diseases are not treated in time. For intravascular thrombosis, the current treatment methods mainly comprise drug thrombolysis, mechanical thrombus removal and suction thrombus removal.
The suction plug is characterized in that a suction catheter is placed near thrombus in an interventional mode, and negative pressure is applied to the proximal end of the suction catheter, so that the thrombus is taken out of a body through the suction catheter under the action of the negative pressure. Compared with drug thrombolysis, suction thrombolysis and mechanical thrombolysis have the advantages of instant effect and instant blood vessel dredging; compared with mechanical thrombus removal, suction thrombus removal has the characteristics of simple operation, small damage to blood vessels and the like, so that the suction thrombus removal is increasingly the mainstream surgical mode of blood vessel thrombus removal.
The existing suction catheter consists of a catheter tube body and a handle, and the inner diameter and the outer diameter of the tube body are uniform, so that the suction force depends on the inner diameter of the tube body under the same negative pressure value. The existing suction catheter has the following use problems: when the thrombus volume or hardness is large, if the suction force is insufficient, the thrombus can not be smoothly drawn out of the body; if the thrombus breaks during aspiration and the diameter of the distal end of the aspiration catheter is small, thrombus fragments may not enter the distal end of the aspiration catheter and escape to other parts of the blood vessel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a suction catheter.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the method comprises the following steps:
the catheter port is arranged at the farthest end of the suction catheter and comprises N groups of balloons, N is more than or equal to 3, and the catheter port is in a horn mouth shape when the balloons are in a filling state;
the pipe body is connected with the port of the guide pipe, a pipe body cavity is formed in the pipe body, a pipe body pipe wall is arranged outside the pipe body, and a liquid-gas channel is formed in the pipe body pipe wall;
and the filling valve and the suction valve are arranged at the proximal end of the suction catheter, the filling valve is communicated with the balloon through a liquid-gas channel so as to give filling pressure to the balloon, and the suction valve is communicated with the catheter port through the catheter body cavity so as to provide suction pressure of the catheter port.
Preferably, the sacculus includes sacculus outer wall, sacculus inner wall, sacculus left wall and sacculus right wall, sacculus outer wall, sacculus inner wall, sacculus left wall and sacculus right wall all select the elasticity material of semi-compliance, the thickness of sacculus outer wall and sacculus inner wall is greater than the thickness of sacculus left wall and sacculus right wall.
Preferably, a spacing tube wall is arranged between the adjacent groups of the balloons, and the spacing tube wall is made of a soft polymer material.
Preferably, the filling valve includes filling valve inner chamber and filling passageway, filling passageway encircles and sets up in the outside of body, filling valve inner chamber sets up in the inside of filling valve.
Preferably, the filling valve inner cavity is communicated with the tube body cavity through a filling channel.
Preferably, the filling valve is externally connected with an injection device.
Preferably, a suction valve cavity is formed in the suction valve, and the suction valve cavity is communicated with the liquid-gas channel.
Preferably, the suction valve is externally connected with a negative pressure suction device.
Preferably, the number of the liquid-gas channels is the same as that of the balloons, and the balloons are uniformly arranged inside the catheter port.
Preferably, the catheter port is consistent with the diameter of the catheter body.
The utility model discloses following beneficial effect has:
1. the port of the suction catheter can be changed into a horn-mouth shape through the filling of the saccule, so that the inner diameter of the port of the catheter is increased, the suction force of the suction catheter is further improved, a better suction effect is achieved, and meanwhile, the suction catheter has better applicability and suction effect on thrombus with larger volume or hardness;
2. the flare opening formed by the suction catheter can capture thrombus fragments generated in the suction process to the maximum extent, and reduce the probability of embolism of other blood vessels, so that the treatment effect is better, and the safety is higher;
3. the expansion amplitude of the horn mouth of the suction catheter can be adjusted by the filling degree, so that the suction catheter is suitable for blood vessels with different diameters, and the using effect is better.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
fig. 2 is a schematic view of a catheter port structure of the present invention;
fig. 3 is a schematic view of the structure of the four walls of the balloon of the present invention;
fig. 4 is a schematic view of the open state of the catheter port of the present invention.
Illustration of the drawings:
1. a catheter port; 11. a balloon; 111. an outer wall of the balloon; 112. an inner wall of the balloon; 113. a balloon left wall; 114. a balloon right wall; 12. a spacer tube wall; 2. a pipe body; 21. the pipe wall of the pipe body; 22. a liquid-gas channel; 23. a pipe body cavity; 3. an inflation valve; 31. filling the valve inner cavity; 32. filling the channel; 4. a suction valve; 41. a suction valve cavity.
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: the method comprises the following steps:
the catheter port 1 is arranged at the farthest end of the suction catheter and comprises N groups of balloons 11, N is more than or equal to 3, and the catheter port 1 is in a horn mouth shape when the balloons 11 are in a filling state;
the pipe body 2 is connected with the pipe port 1, a pipe body cavity 23 is formed in the pipe body 2, a pipe body pipe wall 21 is arranged outside the pipe body cavity, and a liquid-gas channel 22 is formed in the pipe body pipe wall 21;
the filling valve 3 and the suction valve 4 are both disposed at the proximal end of the suction catheter, wherein the filling valve 3 communicates with the balloon 11 through the liquid-air passage 22 to give the balloon 11 filling pressure, and the suction valve 4 communicates with the catheter port 1 through the catheter body cavity 23 to give the catheter port 1 suction pressure.
Further, the balloon 11 includes a balloon outer wall 111, a balloon inner wall 112, a balloon left wall 113 and a balloon right wall 114, the balloon outer wall 111, the balloon inner wall 112, the balloon left wall 113 and the balloon right wall 114 are made of a semi-compliant elastic material, and the thicknesses of the balloon outer wall 111 and the balloon inner wall 112 are greater than the thicknesses of the balloon left wall 113 and the balloon right wall 114.
According to the technical scheme, under the rated pressure value, as the balloon left wall 113 and the balloon right wall 114 are thinner, the balloon left wall 113 and the balloon right wall 114 expand under the action of pressure, the balloon outer wall 111 and the balloon inner wall 112 are thicker and do not expand, but are stretched under the action of the expanding force of the balloon left wall 113 and the balloon right wall 114, and then the catheter port 1 deforms into a horn mouth shape.
Furthermore, a spacing tube wall 12 is arranged between the adjacent groups of the balloons 11, and the spacing tube wall 12 is made of a soft polymer material.
By adopting the technical scheme, the material of the partition tube wall 12 can be freely stretched, and the balloon can be conveniently expanded when being inflated.
Further, the sufficient valve 3 is including sufficient valve inner chamber 31 and sufficient passageway 32, and sufficient passageway 32 encircles and sets up in the outside of body 2, and sufficient valve inner chamber 31 sets up in the inside of sufficient valve 3.
Through the technical scheme, the liquid and gas sent out by the filling valve 3 can be uniformly sent to the balloon 11 through the annular filling channel 32, so that the expansion of the catheter port 1 is more stable and uniform.
Further, the filling valve lumen 31 communicates with the liquid-gas passage 22 via a filling passage 32.
Further, an injection device is externally connected with the filling valve 3.
Through this technical scheme, when the suction catheter used, filling valve 3 was connected with syringe pump or syringe, and the contrast medium got into sacculus 11 through filling valve inner chamber 31, the inside liquid air passage 22 of body pipe wall 21 for the sacculus is full.
Further, a suction valve cavity 41 and a tube body cavity 23 are formed in the suction valve 4.
Furthermore, the suction valve 4 is externally connected with a negative pressure suction device.
Through this technical scheme, suction valve 4 is connected with the vacuum aspiration pump, and blood and thrombus flow out of the body through body cavity 23 and suction valve cavity 41.
Further, the number of the liquid-gas channels 22 is the same as that of the balloons 11, and the balloons 11 are uniformly arranged inside the catheter port 1.
Through this technical scheme, sacculus 11 evenly sets up in the inside of pipe port 1, and liquid air passage 22 also evenly lays in the inside of body pipe wall 21 to make sacculus 11 sufficient expansion be sufficient.
Further, the catheter port 1 is maintained in conformity with the diameter of the tube body 2.
Through the technical scheme, when the sacculus 11 is in a normal unfilled state, the diameter of the catheter port 1 of the suction catheter is consistent with that of the catheter body 2, so that the catheter is conveniently fed.
The working principle is as follows: a plurality of groups of balloons 11 are arranged at the catheter port 1 at the far end of the suction catheter, a liquid-gas channel 22 is arranged inside the catheter body 2, an filling valve 3 is arranged at the near end of the far end of the suction catheter, and the filling valve 3 can convey a contrast agent to the balloons through the liquid-gas channel 22 so as to fill the balloons 11; the outer wall of four sides of sacculus 11 all chooses to choose for use semi-compliant elasticity material, sacculus left wall 113 and sacculus right wall 114 are thinner, sacculus outer wall 111 and sacculus inner wall 112 are thicker, thinner sacculus left wall 113 and sacculus right wall 114 expand under the pressure effect, thicker sacculus outer wall 111 and sacculus inner wall 112 do not take place the expansion, but stretched under the effect of the expanded effort of sacculus left wall 113 and sacculus right wall 114, thereby make pipe port 1 warp to a horn mouth shape, have bigger internal diameter, the adsorption effect to thrombus and piece is better.
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 aspiration catheter, comprising: the method comprises the following steps:
the catheter port (1) is arranged at the farthest end of the suction catheter and comprises N groups of balloons (11), N is more than or equal to 3, and the catheter port (1) is in a horn mouth shape when the balloons (11) are in a filling state;
the pipe body (2) is connected with the pipe port (1), a pipe body cavity (23) is formed in the pipe body, a pipe body pipe wall (21) is arranged outside the pipe body cavity, and a liquid-gas channel (22) is formed in the pipe body pipe wall (21);
a filling valve (3) and a suction valve (4) which are both arranged at the proximal end of the suction catheter, wherein the filling valve (3) is communicated with the balloon (11) through a liquid-air channel (22) to give the balloon (11) filling pressure, and the suction valve (4) is communicated with the catheter port (1) through a catheter body cavity (23) to give the catheter port (1) suction pressure.
2. A suction catheter as claimed in claim 1, wherein: the balloon (11) comprises a balloon outer wall (111), a balloon inner wall (112), a balloon left wall (113) and a balloon right wall (114), the balloon outer wall (111), the balloon inner wall (112), the balloon left wall (113) and the balloon right wall (114) are made of semi-compliant elastic materials, and the thicknesses of the balloon outer wall (111) and the balloon inner wall (112) are larger than those of the balloon left wall (113) and the balloon right wall (114).
3. A suction catheter as claimed in claim 1, wherein: and an interval tube wall (12) is arranged between the adjacent groups of the balloons (11), and the interval tube wall (12) is made of soft high polymer materials.
4. A suction catheter as claimed in claim 1, wherein: filling valve (3) including filling valve inner chamber (31) and filling passageway (32), filling passageway (32) encircle and set up in the outside of body (2), filling valve inner chamber (31) set up in the inside of filling valve (3).
5. A suction catheter as claimed in claim 4, wherein: the filling valve inner cavity (31) is communicated with the tube body cavity (23) through a filling channel (32).
6. A suction catheter as claimed in claim 1, wherein: the filling valve (3) is externally connected with an injection device.
7. A suction catheter as claimed in claim 1, wherein: a suction valve cavity (41) is formed in the suction valve (4), and the suction valve cavity (41) is communicated with the liquid-gas channel (22).
8. A suction catheter as claimed in claim 1, wherein: the suction valve (4) is externally connected with a negative pressure suction device.
9. A suction catheter as claimed in claim 1, wherein: the number of the liquid-gas channels (22) is consistent with that of the balloons (11), and the balloons (11) are uniformly arranged in the catheter port (1).
10. A suction catheter as claimed in claim 1, wherein: the catheter port (1) and the catheter body (2) are kept consistent in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713035.XU CN217244651U (en) | 2022-03-25 | 2022-03-25 | Suction catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713035.XU CN217244651U (en) | 2022-03-25 | 2022-03-25 | Suction catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217244651U true CN217244651U (en) | 2022-08-23 |
Family
ID=82871889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220713035.XU Active CN217244651U (en) | 2022-03-25 | 2022-03-25 | Suction catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217244651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117137575A (en) * | 2023-09-06 | 2023-12-01 | 上海心玮医疗科技股份有限公司 | Flaring suction catheter with bolt cutting function |
| CN118648950A (en) * | 2024-08-20 | 2024-09-17 | 北京久事神康医疗科技有限公司 | Thrombus aspiration device and system |
-
2022
- 2022-03-25 CN CN202220713035.XU patent/CN217244651U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117137575A (en) * | 2023-09-06 | 2023-12-01 | 上海心玮医疗科技股份有限公司 | Flaring suction catheter with bolt cutting function |
| CN117137575B (en) * | 2023-09-06 | 2024-06-25 | 上海心玮医疗科技股份有限公司 | Flaring suction catheter with bolt cutting function |
| WO2024146238A1 (en) * | 2023-09-06 | 2024-07-11 | 上海心玮医疗科技股份有限公司 | Flarable aspiration catheter with thrombus cutting function |
| CN118648950A (en) * | 2024-08-20 | 2024-09-17 | 北京久事神康医疗科技有限公司 | Thrombus aspiration device and system |
| CN118648950B (en) * | 2024-08-20 | 2024-11-19 | 北京久事神康医疗科技有限公司 | Thrombus aspiration device and system |
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