CN217339748U - Cerebral angiography catheter through flexible artery - Google Patents
Cerebral angiography catheter through flexible artery Download PDFInfo
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- CN217339748U CN217339748U CN202220677750.2U CN202220677750U CN217339748U CN 217339748 U CN217339748 U CN 217339748U CN 202220677750 U CN202220677750 U CN 202220677750U CN 217339748 U CN217339748 U CN 217339748U
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- 238000002585 cerebral angiography Methods 0.000 title description 14
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- 238000002601 radiography Methods 0.000 claims abstract description 6
- 238000002583 angiography Methods 0.000 claims description 19
- 238000013459 approach Methods 0.000 claims description 15
- 210000002321 radial artery Anatomy 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 6
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Abstract
The utility model provides a through flexible artery way brain blood vessel radiography pipe, wherein, including pipe main part, kink, straightway, first bending section, second bending section, pipe head end and tail end joint, kink, first bending section and second bending section all are the arc, and the bending direction of first bending section and second bending section sets up oppositely, so make through flexible artery way brain blood vessel radiography pipe shape set up rationally, conveniently carry out the super-election way of each blood vessel, and the distal end is incurved, reduces the amazing damage to the blood vessel; meanwhile, the radius of the bending part is smaller, and the whole width of the far end is smaller, so that the catheter can form a loop in the aortic arch more easily, and the catheter can be conveniently formed in the aortic arch.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a cerebral angiography catheter by means of radial artery.
Background
The endovascular intervention treatment is a clinical treatment method which establishes a channel from the outside to a target blood vessel through intervention equipment and intervention operation, and conveys diagnostic agents, therapeutic agents or therapeutic instruments (such as a bracket and the like) through the channel, and the interventional treatment has the characteristics of small intervention wound, small operation risk, obvious curative effect and the like, and becomes a main treatment mode for treating cardiovascular and cerebrovascular diseases.
With the global popularization and popularization of interventional techniques, cardiovascular and cerebrovascular interventional diagnosis and treatment techniques often adopt transfemoral arteries as a conventional approach. The approach is convenient and easy to operate, relatively simple to operate and remarkable in curative effect, but with the increase of the number of interventional therapy cases, the occurrence of complications is correspondingly increased, for example, a patient needs to lie in bed for a long time (24h) after operation, the patient is extremely unfavorable for patients with high risk, abdominal diseases or difficult urination caused by lying in bed, and the position of the patient is relatively deep, particularly for obese patients, the postoperative compression is difficult, femoral nerves can be damaged in the puncture process, and complications such as lower limb movement disorder, femoral arteriovenous atrophy and the like are caused; failure of imaging when the abdominal aorta and iliac arteries are severely tortuous and stenotic or occluded; the incidence of local vascular complications such as hemorrhage, pseudoaneurysm, arteriovenous atrophy and distal thrombosis is high.
In recent years, many researchers have begun attempting to perform cerebral angiography and therapy via radial access, which has the added advantage of reducing surgical complications and increasing patient comfort compared to transfemoral access. For example, the superficial surface of the radial artery position and the risks of nerve injury and arteriovenous leakage caused by puncture are obviously less than those of transfemoral arteries; the antiplatelet and anticoagulant drug treatment is not required to be interrupted in the inspection process; long-time bedridden observation is not needed after the operation; before the operation, perineum skin preparation is not needed, and the privacy of the patient is exposed. However, at present, a special catheter with proper function and structure is urgently needed for cerebrovascular operation through radial artery access.
Related researches at home and abroad show that a Simon series catheter is adopted in cerebral angiography via a radial artery, the Simon series catheter is an inverse arc-shaped catheter, and the coronary angiography is developed for patients with II type, III type or bovine type aortic arches via femoral artery, so that the catheter needs to be lucky at the aortic arch, and is subjected to super-selection along with torsion, the super-selection process of the Simon catheter has high technical requirements and is easy to cause the winding and folding of the catheter, and the operation risk is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a flexible artery approach cerebral angiography catheter which is simple and safe to operate.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a flexible artery approach cerebrovascular angiography catheter comprises a catheter main body, a bending part, a straight line part, a first bending section, a second bending section, a catheter head end connector and a catheter tail end connector, wherein the bending part, the first bending section and the second bending section are all arc-shaped, and the bending directions of the first bending section and the second bending section are opposite.
Further, the first bending section and the second bending section are smoothly connected and are S-shaped.
Further, the bending radian of the bending part is 180-190 degrees.
Further, the bending radian of the first bending section is 140-145 degrees.
Further, the bending radian of the second bending section is 130-140 degrees.
Further, the catheter main body is in a long straight tubular shape.
Furthermore, the flexible artery approach cerebrovascular angiography catheter is a medical polymer material catheter.
Further, the outer surface of the cerebrovascular angiography catheter through the flexible artery route is coated with a super-smooth coating.
After the technical scheme is adopted, the utility model has the advantages of as follows:
1. in the utility model, the flexible artery path cerebrovascular angiography catheter is arranged to comprise a catheter main body, a bending part, a straight line section, a first bending section, a second bending section, a catheter head end and a tail end connector, the bending part, the first bending section and the second bending section are all arc-shaped, and the bending directions of the first bending section and the second bending section are opposite, so that the flexible artery path cerebrovascular angiography catheter is reasonable in shape arrangement, the hyperelection of each blood vessel is convenient to carry out, and the far end is bent inwards, so that the stimulation damage to the blood vessel is reduced; meanwhile, the radius of the bending part is smaller, and the integral width of the far end is smaller, so that the catheter can form a loop in the aortic arch more easily, and the catheter can be conveniently formed in the aortic arch.
2. Through with first crooked section and the crooked section of second smooth connection and be the S-shaped, so make through the head end direction of radial artery route cerebrovascular angiography pipe for inside side bending and shorter, the overstep of going up the bow selects intubate and left side vertebral artery more easily selects, has improved the control performance that the pipe is behind the tong "pan", is fit for through radial whole brain angiography more.
3. The bending radian of the bending part is set within the range of 180-190 degrees, so that the radius of the bending part is smaller, the integral width of the far end is smaller, the contrast catheter can form a loop in the aortic arch more easily, and the catheter can be conveniently molded in the aortic arch.
4. The curved radian of the first curved section is set within the range of 140-145 degrees, so that the super-entry of each blood vessel is facilitated, and the far end is curved inwards, so that the stimulation injury to the blood vessel is reduced.
5. The curved radian of the second curved section is set within the range of 130-140 degrees, so that the super-selection access of each blood vessel is facilitated, and the far end is bent inwards, so that the stimulation injury to the blood vessel is reduced.
6. The catheter main body is in a long straight tube shape, so that the operation and the integral production and processing of the radiography catheter are facilitated.
7. The cerebral angiography catheter is made of medical polymer materials with gradually changed hardness through bending the artery, the hardness of the cerebral angiography catheter can be enhanced at the bending part, and the shape holding capacity of the distal end of the catheter and the forming capacity of the distal end of the catheter in an aortic arch are improved; and the catheter tip portion is made of a flexible material to minimize trauma to the vessel during the procedure.
8. The ultra-smooth coating is coated on the outer surface of the cerebral angiography catheter in a radial artery approach, so that the introduction of the angiography catheter is facilitated, and the blood vessel is prevented from being damaged.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a radial artery approach cerebrovascular angiography catheter of the present invention.
Fig. 2 is a schematic view showing the usage state of the radial artery angiography catheter of the present invention.
The names of the components marked in the figures are as follows:
1. a catheter body; 2. a bending section; 3. a straight line segment; 4. a first curved section; 5. a second curved section; 6. a catheter tip; 7. a tail end connector; 8. via a radial radiography catheter; 9. the right subclavian artery; 10. the right vertebral artery; 11. the right common carotid artery; 12. the left common carotid artery; 13. the left subclavian artery; 14. the left vertebral artery; 15. a head and arm trunk; 16. the aortic arch; 17. the ascending aorta.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 to 2, the present invention provides a flexible artery approach cerebral angiography catheter, which comprises a catheter main body 1, a bending portion 2, a straight line portion 3, a first bending portion 4, a second bending portion 5, a catheter head end 6 and a tail end connector 7, wherein the catheter main body 1, the bending portion 2, the straight line portion 3, the first bending portion 4, the second bending portion 5, the catheter head end 6 and the tail end connector 7 are integrally formed to form the flexible artery approach cerebral angiography catheter, the catheter main body 1 is a long straight tube, the proximal end is connected with the tail end connector 7 which can be adapted to a general three-way connector, the distal end is connected with the bending portion 2, the bending portion 2 is an inverse arc shape with a smaller arc diameter, the straight line portion 3 is connected with the bending portion 2, the straight line portion 3 and the catheter main body 1 form an acute angle with a smaller angle, the straight line portion 3 is connected with the first bending portion 4, the first bending portion 4 and the second bending portion 5 are two circular arcs, the combination is a section of bend pipe of approximate "S" shape, 5 distal ends of second bending section connect pipe head end 6, pipe head end 6 is a section of short straight tube, be the direction extension of the intraductal side of guide, be located the end of pipe, wherein pipe main part 1, kink 2, straight line section 3, first bending section 4, second bending section 5, pipe head end 6, tail end joint 7 are integrated into one piece' S hollow structure, the pipe material is the medical macromolecular material of hardness gradual change, the distal end is the softest, outermost coating has the super smooth coating.
In this embodiment, the bending portion 2, the first bending section 4 and the second bending section 5 are all arc-shaped, and the bending directions of the first bending section 4 and the second bending section 5 are opposite, so that the shape of the cerebrovascular angiography catheter through a flexible artery path is reasonably arranged, the hyperelective access of each blood vessel is convenient, and the far end is bent inwards, so that the stimulation injury to the blood vessel is reduced; meanwhile, the radius of the bending part is smaller, and the whole width of the far end is smaller, so that the catheter can form a loop in the aortic arch more easily, and the catheter can be conveniently formed in the aortic arch.
Specifically, the first bending section 4 and the second bending section 5 can be smoothly connected and are S-shaped, so that the direction of the head end of the cerebral angiography catheter in the radial artery path is bent towards the inner side and is shorter, the superior selection of the superior selection cannula on the arch and the left vertebral artery can be more easily carried out, the control performance of the catheter after the catheter is a loop is improved, and the catheter is more suitable for radial whole cerebral angiography.
More specifically, the bending radian of the bending part 2 can be set within the range of 180-190 degrees, and alpha is 186 degrees, so as to ensure that the radius of the bending part is smaller and the whole width of the far end is smaller, so that the contrast catheter can form a loop in the aortic arch more easily, and the forming of the catheter in the aortic arch is facilitated.
Moreover, the bending radian of the first bending section 4 can be set within the range of 140-145 degrees, beta is particularly 142 degrees, the over-selection of each blood vessel is facilitated, and the far end is bent inwards, so that the stimulation injury to the blood vessel is reduced.
And the bending radian of the second bending section 5 can be set within the range of 130-140 degrees, gamma is 135 degrees, the over-selection of each blood vessel is facilitated, and the far end is bent inwards, so that the stimulation injury to the blood vessel is reduced.
Meanwhile, the catheter main body 1 can be arranged to be in a long straight tube shape, so that the operation and the integral production and processing of the radiography catheter are facilitated.
In addition, the cerebrovascular angiography catheter 8 through the flexible artery route can be made of medical polymer materials with gradually changed hardness, namely, the hardness at the bent part 2 is enhanced, so that the shape holding capacity of the distal end of the catheter and the forming capacity of the distal end of the catheter in an aortic arch are improved; while the catheter tip 6 is flexible to minimize trauma to the vessel during the procedure.
Finally, the outer surface of the cerebrovascular angiography catheter 8 in a radial artery approach can be coated with an ultra-smooth coating, so that the introduction of the angiography catheter is facilitated, and the damage to blood vessels is avoided.
As shown in fig. 2, the head end of the cerebral angiography catheter 8 via the radial artery enters from the right subclavian artery 9, and passes through the right vertebral artery 10, the head and arm trunk 15, the right common carotid artery 11 and the ascending aorta 17 to enter the left common carotid artery 12, and is communicated with the aortic arch 16, the left subclavian artery 13 and the left vertebral artery 14.
It is understood that the bending arc of the bent portion may be 180 °, 181 °, 182 °, 183 °, 184 °, 185 °, 187 °, 188 °, 189 °, 190 °, or the like.
It is understood that the degree of curvature of the first curved segment can be 140 °, 141 °, 143 °, 144 °, 145 °, etc.
It is understood that the degree of curvature of the second curved segment can be 130 °, 131 °, 132 °, 133 °, 134 °, 136 °, 137 °, 138 °, 139 °, 140 °, etc.
In addition to the above preferred embodiments, the technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The utility model provides a through flexible artery route cerebrovascular radiography pipe which characterized in that, includes pipe main part, kink, straightway, first crooked section, second crooked section, pipe head end and tail end joint, kink, first crooked section and second crooked section all are the arc, and the crooked opposite direction of first crooked section and second crooked section sets up.
2. The flexible arterial approach cerebrovascular angiography catheter of claim 1, wherein the first and second curved sections are smoothly connected and are S-shaped.
3. The flexible arterial approach cerebrovascular angiography catheter according to claim 1, wherein the bending radian of the bending part is 180 ° to 190 °.
4. The flexible arterial approach cerebrovascular angiographic catheter of claim 1 wherein the first curved section has an arc of curvature of 140 ° to 145 °.
5. The flexible arterial approach cerebrovascular angiographic catheter of claim 1 wherein the second curved section has an arc of curvature of 130 ° to 140 °.
6. The flexible arterial approach cerebrovascular angiography catheter of claim 1, wherein the catheter body is in the shape of a long straight tube.
7. The radial artery access cerebrovascular angiography catheter according to claim 1, wherein the radial artery access cerebrovascular angiography catheter is a medical polymer catheter.
8. The radial artery access cerebrovascular imaging catheter as claimed in claim 1, wherein an outer surface of the radial artery access cerebrovascular imaging catheter is coated with a super-slip coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220677750.2U CN217339748U (en) | 2022-03-25 | 2022-03-25 | Cerebral angiography catheter through flexible artery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220677750.2U CN217339748U (en) | 2022-03-25 | 2022-03-25 | Cerebral angiography catheter through flexible artery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217339748U true CN217339748U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220677750.2U Active CN217339748U (en) | 2022-03-25 | 2022-03-25 | Cerebral angiography catheter through flexible artery |
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|---|---|
| CN (1) | CN217339748U (en) |
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- 2022-03-25 CN CN202220677750.2U patent/CN217339748U/en active Active
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Address after: 519000 Zhuhai City, Guangdong Province, Xiangzhou District, Tangjiawan Town Science and Technology 7 Road No. 1 Zhuhai Medium-Electricity High-tech Industrial Park, 4 1-B Units Patentee after: Tongqiao Medical Technology Co.,Ltd. Country or region after: China Address before: 519000 Zhuhai City, Guangdong Province, Xiangzhou District, Tangjiawan Town Science and Technology 7 Road No. 1 Zhuhai Medium-Electricity High-tech Industrial Park, 4 1-B Units Patentee before: ZHUHAI TONGQIAO MEDICAL TECHNOLOGY CO.,LTD. Country or region before: China |
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