CN219763476U - Sectional type thrombolysis perfusion catheter - Google Patents
Sectional type thrombolysis perfusion catheter Download PDFInfo
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- CN219763476U CN219763476U CN202321276353.5U CN202321276353U CN219763476U CN 219763476 U CN219763476 U CN 219763476U CN 202321276353 U CN202321276353 U CN 202321276353U CN 219763476 U CN219763476 U CN 219763476U
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- catheter
- side opening
- opening region
- outer chamber
- thrombolytic
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- 230000002537 thrombolytic effect Effects 0.000 title claims abstract description 37
- 230000010412 perfusion Effects 0.000 title claims abstract description 9
- 239000003146 anticoagulant agent Substances 0.000 claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 230000002439 hemostatic effect Effects 0.000 claims description 12
- 238000001802 infusion Methods 0.000 claims description 9
- 239000003814 drug Substances 0.000 abstract description 27
- 208000007536 Thrombosis Diseases 0.000 abstract description 20
- 230000023597 hemostasis Effects 0.000 abstract 2
- 229940079593 drug Drugs 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 206010051055 Deep vein thrombosis Diseases 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 3
- 206010047249 Venous thrombosis Diseases 0.000 description 3
- 208000034158 bleeding Diseases 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000002591 computed tomography Methods 0.000 description 3
- 208000010378 Pulmonary Embolism Diseases 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 206010014513 Embolism arterial Diseases 0.000 description 1
- 206010014522 Embolism venous Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003527 fibrinolytic agent Substances 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 208000004043 venous thromboembolism Diseases 0.000 description 1
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Abstract
The utility model belongs to the technical field of medical thrombolysis devices, and provides a segmented thrombolysis perfusion catheter. The catheter comprises a catheter, the catheter contain coaxial inner chamber and outer chamber, the distal end of outer chamber seal, the catheter outer chamber in have along radial radiation and along the wall of axis extension, divide into different independent cavities along all around with outer chamber, be equipped with a plurality of side opening on the distal end pipe wall of every independent cavity, form little side opening region, the little side opening region of a plurality of independent cavity is arranged along the extension, forms a big side opening region, the proximal end of every independent cavity is connected with a rotary hemostasis valve respectively, little side opening region both sides are provided with development mark respectively, the proximal end of inner chamber also is connected with a rotary hemostasis valve. In conclusion, the utility model eliminates the occlusion guide wire component, and has simple operation and short time consumption; simultaneously, the thrombolytic medicine is accurately released into the thrombus, thereby greatly improving the thrombolytic effect.
Description
Technical Field
The utility model belongs to the technical field of medical thrombolysis devices, and particularly relates to a segmented thrombolysis perfusion catheter.
Background
Deep vein thrombosis is a venous return obstructive disease caused by abnormal coagulation of blood in a deep vein, and often occurs in the lower limb. Thrombus shedding can cause pulmonary embolism. Deep vein thrombosis and pulmonary arterial embolism, collectively known as venous thromboembolism, are manifestations of the same disease at different stages, with adverse consequences that can significantly impact the quality of life of a patient, even leading to death. Treatments for deep vein thrombosis and pulmonary embolism are mainly surgical, pharmaceutical and interventional therapies. Interventional procedures include transcatheter mechanical thrombolysis, transcatheter infusion thrombolysis, and the like. Among the treatment modes, surgical operation is large in wound, high in risk and low in patient acceptance, and is often applied to emergency situations such as emergency treatment; the systemic drug has good treatment effect, but the systemic application of thrombolytic drugs brings great bleeding risk; the interventional therapy has good effect, quick response, small invasiveness and guaranteed safety, but the mechanical thrombus taking has the hidden trouble of damaging the vessel wall. Therefore, the catheter direct perfusion thrombolysis with the characteristics of minimally invasive, minimally administered dosage and the like is more favored as a treatment mode combining the drug and the interventional operation.
The current perfusion catheter needs to use a guide wire to establish a passage, then the guide wire is put into the catheter along the guide wire, then the guide wire is withdrawn and is sent into an occlusion guide wire to seal a dosing cavity, the outer surface of the distal end of the catheter is provided with side holes which are regularly arranged to form side hole areas, the lengths of the side hole areas are fixed, development marks are arranged on two sides of the side hole areas, the side hole areas penetrate through the inside of thrombus with the aid of CT scanning perspective development marks, a section of side hole areas are fixed in length and are positioned in the inside of the thrombus, meanwhile, some side hole areas are positioned outside the thrombus, then thrombolysis operation is carried out, a rotary hemostatic valve at the proximal end of the catheter is connected with a micro pump outlet, thrombolytic medicine is injected into the catheter, and thrombolytic medicine is dissolved through the side holes in the side hole areas under the action of micro pump pressure. Therefore, the preparation of a perfusion catheter for accurately releasing the drug into the thrombus is a big problem in the current interventional medicine.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a segmented thrombolytic perfusion catheter which eliminates an occlusion guide wire component, is simple to operate and is short in time consumption; simultaneously, the thrombolytic medicine is accurately released into the thrombus, thereby greatly improving the thrombolytic effect.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: there is provided a segmented thrombolytic infusion catheter, the structure of which comprises: the catheter, wherein, the catheter contain coaxial inner chamber and outer chamber, the distal end of outer chamber seal, the catheter outer chamber in have along radial radiation and along the wall of axis extension, divide into different independent cavities with outer chamber along all around, be equipped with a plurality of side opening on the distal end pipe wall of every independent cavity, form little side opening region, the little side opening region of a plurality of independent cavity is arranged along the extension, forms a big side opening region, the proximal end of every independent cavity is connected with a rotary hemostatic valve respectively, little side opening region both sides are provided with the development sign respectively, the proximal end of inner chamber also is connected with a rotary hemostatic valve.
Further, the aperture of the side hole in the small side hole area gradually increases from the near to the far.
Further, the number of the independent chambers is 3-6.
Further, the number of the side holes is 3-6.
When the device is used, a guide wire is used for establishing a passage, then the guide wire is placed into a catheter along the guide wire, in the process, the inner cavity of the catheter is used for guiding the guide wire to pass through, any section of small side hole area is penetrated into thrombus under the assistance of CT scanning perspective development mark, for example, a second section of small side hole area is penetrated into the thrombus, then the guide wire is withdrawn, meanwhile, the inner cavity proximal end rotary hemostatic valve is closed to prevent the blood in the inner cavity from flowing backwards, then the rotary hemostatic valve at the proximal end of an independent cavity communicated with the second section of small side hole area is connected with a micro pump to pump thrombolytic medicine, at the moment, the thrombolytic medicine is discharged from the side holes of the second section of small side hole area only, the effect of intensively releasing the medicine in the thrombus is achieved, the thrombolytic effect is greatly improved, at the moment, and the rest sections of small side hole areas are not discharged, so that the bleeding risk caused by medicine loss is avoided; if the examination finds that the thrombus of the patient is longer, the first, second, third and other sections of small side hole areas can be penetrated into the thrombus at the same time for combined use. And secondly, the utility model does not inject medicine through the inner cavity of the catheter, so that the use of an occlusion guide wire is canceled, and a passage is established only by using a common guide wire, thereby simplifying the operation flow. In conclusion, the utility model eliminates the occlusion guide wire component, and has simple operation and short time consumption; simultaneously, the thrombolytic medicine is accurately released into the thrombus, thereby greatly improving the thrombolytic effect.
Drawings
FIG. 1 is a schematic view of the overall structure of a segmented thrombolytic infusion catheter according to the present utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the structure of a small side hole area in a segmented thrombolytic infusion catheter according to the present utility model;
fig. 4 is a schematic view of the structure of a large side hole area in a segmented thrombolytic infusion catheter according to the present utility model.
Description of the embodiments
The structure and advantages of the present utility model will become more apparent from the following description of the structure and embodiments thereof, taken in conjunction with the accompanying drawings.
1-4, a segmented thrombolytic infusion catheter, the structure of which comprises: the catheter 1, wherein catheter 1 contain coaxial inner chamber 2 and outer chamber 3, the distal end of outer chamber 3 is sealed, catheter 1 outer chamber 2 in have along radial radiation and along the cut off 4 of axis extension, divide into different independent cavity 5 with outer chamber 2 along all around, be equipped with a plurality of side opening 6 on the distal end pipe wall of every independent cavity 5, form little side opening region 7, the little side opening region 7 of a plurality of independent cavity 5 is arranged along the line, forms a big side opening region 8, the proximal end of every independent cavity 5 is connected with a rotary hemostatic valve 9 respectively, little side opening region 7 both sides are provided with development mark 10 respectively, the proximal end of inner chamber 2 also is connected with a rotary hemostatic valve 9.
Second embodiment referring to fig. 1-4, on the basis of the first embodiment, the method further comprises: the aperture of the side hole 6 in the small side hole area 7 is gradually increased from the near to the far. Because the pressure in the catheter 1 gradually reduces from near to far, in order to ensure that the side hole 6 in the small side hole area 7 is uniform in medicine outlet, the aperture of the side hole 6 is changed, the distal pressure is small, the medicine outlet amount is improved by increasing the aperture, and the proximal pressure greatly reduces the medicine outlet amount by reducing the aperture, so that the thrombolysis effect is improved.
Embodiment III referring to FIGS. 1-4, on the basis of embodiment I, further comprising: the number of individual chambers 5 is 3-6, preferably 4. According to the preparation difficulty and the cost, 3-6 are suitable for clinical trial.
Fourth embodiment referring to fig. 1-4, on the basis of the first embodiment, the method further comprises: the number of side holes 6 is 3-6, preferably 5. According to clinical test, 3-6 are suitable.
The rotary hemostatic valve 9 comprises a guide wire hole and a drug filling hole, the inner cavity 2 of the catheter 1 is communicated with the guide wire hole to provide a guide wire passage, and the independent cavity 5 of the catheter 1 is communicated with the drug filling hole to provide a drug filling passage. When the catheter is used, a guide wire is used for establishing a passage, then the guide wire is placed into the catheter 1 along the guide wire, in the process, the inner cavity of the catheter 1 is used for guiding the guide wire to pass through, any section of small side hole area 7 is penetrated into thrombus under the assistance of CT scanning perspective development mark, for example, the second section of small side hole area 7 is penetrated into thrombus, then the guide wire is withdrawn, meanwhile, the inner cavity 2 proximal end rotary hemostatic valve 9 is closed to prevent the blood backflow of the inner cavity 2, then the proximal end rotary hemostatic valve 9 of the independent cavity 5 communicated with the second section of small side hole area 7 is connected with a micro pump to pump thrombolytic medicine, at the moment, the thrombolytic medicine is discharged from the side hole 6 of the second section of small side hole area 7 only, the effect of intensively releasing the medicine in the thrombus is achieved, at the moment, the thrombolytic effect is greatly improved, and the rest sections of small side hole area 7 are not discharged with the medicine, so that the bleeding risk caused by medicine loss is avoided; if the examination finds that the thrombus of the patient is longer, the first, second, third and other sections of small side hole areas 7 can be simultaneously penetrated into the thrombus for combined use. And secondly, the utility model does not inject medicine through the inner cavity 2 of the catheter 1, so that the use of an occlusion guide wire is canceled, and a passage is established only by using a common guide wire, thereby simplifying the operation flow. In conclusion, the utility model eliminates the occlusion guide wire component, and has simple operation and short time consumption; simultaneously, the thrombolytic medicine is accurately released into the thrombus, thereby greatly improving the thrombolytic effect.
Claims (4)
1. A segmented thrombolytic perfusion catheter, comprising a catheter, characterized in that: the catheter contain coaxial inner chamber and outer chamber, the distal end of outer chamber seal, the catheter outer chamber in have along radial radiation and along the wall of axis extension, divide into different independent cavities with outer chamber along all around, be equipped with a plurality of side opening on the distal end pipe wall of every independent cavity, form little side opening region, the little side opening region of a plurality of independent cavity is arranged along the extension, forms a big side opening region, the proximal end of every independent cavity is connected with a rotary hemostatic valve respectively, little side opening region both sides are provided with the development sign respectively, the proximal end of inner chamber is also connected with a rotary hemostatic valve.
2. A segmented thrombolytic infusion catheter as defined in claim 1, wherein: the aperture of the side hole in the small side hole area is gradually increased from the near to the far.
3. A segmented thrombolytic infusion catheter as defined in claim 1, wherein: the number of the independent chambers is 3-6.
4. A segmented thrombolytic infusion catheter as defined in claim 1, wherein: the number of the side holes is 3-6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321276353.5U CN219763476U (en) | 2023-05-24 | 2023-05-24 | Sectional type thrombolysis perfusion catheter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321276353.5U CN219763476U (en) | 2023-05-24 | 2023-05-24 | Sectional type thrombolysis perfusion catheter |
Publications (1)
Publication Number | Publication Date |
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CN219763476U true CN219763476U (en) | 2023-09-29 |
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ID=88106256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202321276353.5U Active CN219763476U (en) | 2023-05-24 | 2023-05-24 | Sectional type thrombolysis perfusion catheter |
Country Status (1)
Country | Link |
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CN (1) | CN219763476U (en) |
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2023
- 2023-05-24 CN CN202321276353.5U patent/CN219763476U/en active Active
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