CN115429381B - Thrombus aspiration catheter device - Google Patents
Thrombus aspiration catheter device Download PDFInfo
- Publication number
- CN115429381B CN115429381B CN202211021329.7A CN202211021329A CN115429381B CN 115429381 B CN115429381 B CN 115429381B CN 202211021329 A CN202211021329 A CN 202211021329A CN 115429381 B CN115429381 B CN 115429381B
- Authority
- CN
- China
- Prior art keywords
- developing
- pushing rod
- distal end
- aspiration catheter
- braiding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
- A61B2017/22084—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance stone- or thrombus-dissolving
Abstract
The present invention provides a thrombus aspiration catheter device, the aspiration catheter device comprising: a suction catheter; the pushing rod is slidably assembled in the suction catheter and can extend out from the distal end of the suction catheter; the developing piece is arranged on the outer wall of the distal end of the pushing rod and has a certain length; the pushing rod penetrates through the braiding body along the axis of the braiding body, fixed cylinder sleeves are arranged at two ends of the braiding body, and fixed steel sleeves are correspondingly sleeved on the outer wall of the pushing rod; and a fixed disc is arranged between the fixed cylinder sleeve and the braiding body. Set up the fixed disk between fixed cylinder liner and the braid, shelter from the both ends of braid through the fixed disk, can reduce the braid to a certain extent and lead to deformation because of blood impact, in addition, the fixed disk is as stopping piece backstop between fixed cylinder liner and braid, can avoid weaving the silk to roll off from fixed cylinder liner to guarantee to get the bolt effect, avoid weaving the silk to deviate from and damage the vascular inner wall.
Description
Technical Field
The invention belongs to the technical field of thrombus aspiration, and particularly relates to a thrombus aspiration catheter device.
Background
Cerebral apoplexy is also called cerebral apoplexy, is a local brain dysfunction caused by acute cerebrovascular diseases, has the characteristics of high morbidity, high mortality, high disability rate and high recurrence rate after more than 24 hours, and is good for people over 50 years old. At present, the incidence rate of cerebral apoplexy in China rises year by year and becomes the first cause of death in China.
At present, the main treatment means for ischemic stroke is drug thrombolysis and interventional instrument thrombolysis, and the adoption of drug thrombolysis within 4.5 hours of onset is the preferred scheme for treating acute ischemic stroke, but because the time window is too short, few cerebral stroke patients meet the treatment conditions of drug thrombolysis. Meanwhile, due to the factors of short treatment time window, low vascular recanalization rate, high incidence rate of beginner complications and the like, the thrombolysis of the interventional instrument gradually develops, and has good application prospect in clinic. The therapeutic mode of interventional instrument thrombus removal has wider applicability, can rapidly recanalize occluded blood vessels, reduces the incidence rate of drug complications and improves the prognosis of patients. Interventional instrument thrombus extraction is generally divided into a stent thrombus extraction operation and a catheter suction operation, wherein a braid adopted by the stent thrombus extraction operation is easy to be impacted by blood to generate deformation in the thrombus extraction process, deformation force generated by deformation can cause the braid to slip from a fixed cylinder sleeve, thus not only affecting the thrombus extraction effect, but also damaging blood vessels to cause irreversible injury to the body of a patient.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide a thrombi aspiration catheter device.
In order to achieve the above object, the present invention provides the following technical solutions:
a thrombus aspiration catheter device, the aspiration catheter device comprising:
a suction catheter;
a pusher bar slidably mounted within the aspiration catheter and extendable from a distal end of the aspiration catheter;
the developing piece is arranged on the outer wall of the distal end of the pushing rod and has a certain length;
the braiding body is arranged at the distal end of the pushing rod and is connected with the developing piece into a whole so as to stretch out along with the pushing rod after extending out of the distal end of the suction catheter;
the pushing rod penetrates through the braiding body along the axis of the braiding body, fixed cylinder sleeves are arranged at two ends of the braiding body, and the fixed cylinder sleeves are correspondingly sleeved on the outer wall of the pushing rod;
and a fixed disc is arranged between the fixed cylinder sleeve and the braiding body.
Preferably, the outer diameter of the fixed disc is larger than the outer diameter of the fixed cylinder sleeve.
Preferably, the developing part is a developing spring, and the developing spring is correspondingly sleeved on the outer wall of the pushing rod and spirally extends along the axial direction of the pushing rod.
Preferably, the developing member is strip-shaped, and a plurality of developing members extend along the axial direction of the pushing rod and are uniformly distributed in the circumferential direction of the pushing rod.
Preferably, the developing member is a developing ring, and a plurality of developing rings are equidistantly distributed along the axial direction of the pushing rod.
Preferably, the distal end of the pushing rod is a reducing section with a reduced outer diameter corresponding to the developing spring, and the developing spring is correspondingly wound on the reducing section and is fixed by glue or laser welding.
Preferably, the distal end of the pushing rod is in a spherical cap shape, and the developing spring is tightly attached to the outer wall of the pushing rod so as to form a spherical cap-shaped bending at the distal end of the pushing rod.
Preferably, a polymer film layer is provided outside the developing member.
Preferably, the plurality of braiding bodies are distributed at intervals along the axial direction of the pushing rod and are connected in series to form a whole.
The beneficial effects are that: set up the fixed disk between fixed cylinder liner and the braid, shelter from the both ends of braid through the fixed disk, can reduce the braid to a certain extent and lead to deformation because of blood impact, in addition, the fixed disk is as stopping piece backstop between fixed cylinder liner and braid, can avoid weaving the silk to roll off from fixed cylinder liner to guarantee to get the bolt effect, avoid weaving the silk to deviate from and damage the vascular inner wall.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. Wherein:
FIG. 1 is a schematic view of a suction catheter device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a pushing rod according to an embodiment of the present invention;
FIG. 3 is a schematic end view of a braid in accordance with one embodiment of the present invention;
FIG. 4 is a schematic view illustrating the installation of a polymer film layer according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating installation of a fixed disc according to an embodiment of the present invention.
In the figure: 1. a suction catheter; 2. a push rod; 3. a braiding body; 4. a fixed plate; 5. fixing the cylinder sleeve; 6. a developing spring; 7. a polymer film layer; 8. the points are marked.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
As shown in fig. 1-5, a thrombus-aspiration catheter device comprises an aspiration catheter 1, a pushing rod 2, a developing part and a braiding part 3, wherein in the embodiment, one end of the aspiration catheter 1 extending into a blood vessel is a distal end, the other end of the aspiration catheter is a proximal end, the aspiration catheter 1 is used for extending into the blood vessel to aspirate thrombus, the pushing rod 2 is slidably assembled in the aspiration catheter 1 and axially pushes the braiding part 3 along the axial direction of the aspiration catheter 1 and extends out of the distal end of the aspiration catheter 1 to push the braiding part 3 to the distal end of the aspiration catheter 1, the pushing rod 2 pushes the braiding part 3 out of the aspiration catheter 1 after the aspiration catheter 1 passes through thrombus, the developing part has a certain length and is correspondingly arranged on the outer wall of the distal end of the pushing rod 2, the length of the developing part is larger than the length of the braiding part 3, the developing part is used for determining the specific position of the braiding part 3, the braiding part 3 is arranged at the distal end of the pushing rod 2 and forms a whole with the developing part, the pushing rod 2, the braiding part 3 expands and spreads out of the wall of the thrombus to be tightly attached to the distal end of the aspiration catheter, thus preventing thrombus from escaping, the thrombus can be retracted by the pushing the aspiration catheter 1 to the thrombus, and the thrombus can be retracted to the catheter to be prevented from being withdrawn by the catheter, and the thrombus can be retracted by the catheter to be retracted by the catheter after the aspiration catheter is retracted to be opened, and the thrombus is retracted by the catheter, and the thrombus device can be prevented from the thrombus is retracted by the catheter and the thrombus device from the thrombus device is retracted. The distal end of the pushing rod is provided with the braiding body, the pushing rod pushes the braiding body to the distal end of the suction catheter and then opens, when the thrombus is sucked and removed, the inner cavity of the suction catheter is used as a passage, the suction catheter device passes through the distal end of the thrombus and then expands and opens, the thrombus is prevented from escaping from the distal end of the thrombus by the braiding body, and the thrombus blocking effect is achieved. When the suction is started, the suction catheter device is retracted, so that thrombus is returned into the suction catheter together, and the vascular opening efficiency is improved. The pushing rod 2 passes through the braiding body 3 along the axis of the braiding body 3, the pushing rod and the braiding body are concentrically distributed so as to uniformly bear force in a blood vessel after the braiding body is unfolded, meanwhile, both ends of the braiding body 3 are provided with fixed cylinder sleeves 5, the fixed cylinder sleeves 5 are correspondingly sleeved on the outer wall of the pushing rod 2, the braiding body 3 is braided by braiding wires, the fixed cylinder sleeves 5 are connected with the braiding wires in a rivet mode, specifically, the braiding wires pass through the fixed cylinder sleeves 5 and then are riveted with the side wall of the fixed cylinder sleeves 5 by the braiding wires, and the braiding body can be firmly fixed in a rivet mode, so that the braiding body is prevented from sliding out of the fixed cylinder sleeves 5, meanwhile, a fixed disc is arranged, and after the braiding body, the fixed disc and the fixed cylinder sleeves are connected, the braiding body is directly sleeved on the pushing rod and a developing spring to be fixed, so that the assembly can be completed, and the production and the assembly are simple; the push rod 2 is externally sleeved with two fixing plates 4, the two fixing plates 4 are respectively located at two ends of the braiding part 3 and are respectively located between the fixing cylinder sleeves at two ends of the braiding part 3 and the braiding part so as to respectively stop the two fixing cylinder sleeves 5, thereby limiting the braiding part 3, reducing deformation of the two ends of the braiding part due to blood impact to a certain extent, and preventing braiding wires from sliding out of the fixing cylinder sleeves through the stop of the fixing plates 4.
In an alternative embodiment, the developing member is a developing spring 6, and the inner diameter of the developing spring 6 is matched with the outer diameter of the pushing rod, so as to be correspondingly sleeved on the outer wall of the pushing rod 2, and spirally extends along the axial direction of the pushing rod. In some embodiments, in order to facilitate pushing of the pushing rod, the distal end of the pushing rod 2 is a reducing section, so that smoothness and smoothness of the outer wall of the pushing rod 2 after the pushing rod is wound around the developing spring 6 can enable the pushing rod to better transmit proximal pushing force, the distal end can more easily pass through tortuous vessels, and force transmission and product conveying efficiency are facilitated. In this embodiment, the pushing rod 2 may be made of a nickel-titanium or stainless steel material, a reducing section is formed at a distal end through grinding, the reducing section is in a column shape, the reducing section is a section which is located at the distal end of the pushing rod 2 and corresponds to a part of the developing spring 6, the outer diameter of the developing spring is reduced, the developing spring 6 is correspondingly wound on the reducing section, and the developing spring 6 is made of developing metals such as platinum iridium, platinum dock, tantalum, gold and the like and is fixed with the pushing rod 2 in a glue or laser welding mode. In another embodiment, the diameter difference between the variable diameter section and the body of the push rod 2 is adapted to the diameter of the developing spring 6 so that after winding the developing spring 6, the outer diameter of the section coincides with the outer diameter of the body of the push rod 2.
In an alternative embodiment, the distal end of the pushing rod 2 is in a spherical cap shape, and the developing spring 6 is correspondingly attached to the outer wall of the pushing rod 2, and is bent along the spherical cap shape at the distal end of the pushing rod 2, so that the distal end of the pushing rod 2 wound with the developing spring 6 is kept in the spherical cap shape, and the effects of damaging blood vessels due to the tip of the distal end of the stent are avoided.
In this embodiment, a spiral groove extending helically is provided in the diameter-variable section of the push rod 2, and is used for embedding the developing spring 6, so as to improve the connection stability of the developing spring 6 and avoid displacement of the developing spring 6 in the use process, and in this embodiment, the sum of the depth of the spiral groove and the diameter difference (the diameter difference with the main body of the push rod 2) of the diameter-variable section is equal to the outer diameter of the developing spring 6.
In an alternative embodiment, the developing member is in a strip shape, such as a wire shape, a plate shape, a column shape, etc., and a plurality of the developing members extend in the axial direction of the pushing rod and are uniformly distributed in the circumferential direction of the pushing rod 2. In order to be favorable to the propelling movement of propelling movement pole 2, be the reducing section at the distal end of propelling movement pole 2, perhaps, developing piece is developing ring, a plurality of developing rings are along the axial equidistance distribution of propelling movement pole, judge the position of propelling movement pole 2 through a plurality of developing rings, also in this embodiment to outer wall periphery is unanimous with propelling movement pole main part periphery behind the developing piece is set up in propelling movement pole 2, guarantees the smoothness and the smooth degree of propelling movement pole, more is favorable to the transmission of power and the efficiency that the product was carried. The developing part is made of developing metals such as platinum iridium, platinum dock, tantalum, gold and the like, and is fixed with the pushing rod 2 in a glue or laser welding mode. Furthermore, a groove corresponding to the developer can be formed in the reducing section of the push rod 2, so that the connection stability to the developer can be improved.
In an alternative embodiment, the outer diameters of the fixed cylinder sleeve 5 and the fixed disk 4 are smaller than the inner diameter of the suction catheter 1, so as to smoothly insert and push in the suction catheter 1, the fixed cylinder sleeve 5 and the fixed disk 4 can be made of development materials such as platinum dock and platinum iridium, the braiding body 3 can be formed by mixed braiding of memory alloy wires and development material wires such as platinum dock and platinum iridium, and in this embodiment, the braiding body 3 is any one of a sphere, an ellipsoid, a oblate sphere or a horn shape, and the specific shape is that the outer edge can be tightly attached to a blood vessel after the expansion, so as to prevent thrombus from escaping.
In an alternative embodiment, the polymer film 7 is heat-shrunk outside the developing spring 6, and the polymer film can reduce the friction between the pushing rod and the blood vessel. In the application, the distal end of the pushing rod 2 and the developing spring 6 are connected into a whole and jointly penetrate through the braiding body 3, the device braiding body 3 is formed by mixed braiding of memory alloy wires and noble metal wires such as platinum iridium and platinum dock, and the device braiding body is shaped into a required shape through heat treatment, so that the device braiding body has self-expanding and super-elastic characteristics; and a polymer film layer 7 is heat-shrunk outside the developing spring 6, the polymer friction can be made of smooth materials such as PTFE, PTE and the like, the length of the polymer film layer 7 is 0.2-500mm, and the conveying resistance of the materials in blood vessels is reduced. Preferably, the polymer film 7 may be adapted to the length of the developing spring, or the polymer film 7 is only disposed on the developing springs 6 corresponding to the two ends of the braid 3, and the polymer film 7 corresponding to the proximal end of the braid 3 extends toward the proximal end of the push rod 2.
In an alternative embodiment, the proximal end of the push rod 2 is provided with two marking points 8, and the distal end of the push rod 2 approaches the distal end of the suction catheter 1 when one marking point 8 at the more distal end approaches the proximal end of the suction catheter 1; when a marking point 8 on the nearer end is near the proximal end of the suction catheter 1, the distal end of the push rod 2 extends beyond the distal end of the suction catheter 1 and the braid 3 is detached from the suction catheter 1 and opened. The specific positions of the distal end of the pushing rod 2 and the braiding body 3 can be determined through the marking points 8, so that a doctor can conveniently judge the state that the stent enters the microcatheter.
In an alternative embodiment, the fixing disc 4 is fixed on the developing spring 6 and/or the pushing rod 2 through glue or laser welding, the inner ring of the fixing disc 4 is matched with the outer diameter of the pushing rod, and a notch corresponding to the developing spring is arranged, so that the fixing disc is correspondingly fixed on the pushing rod 2, the stopping limit of the braiding bodies is realized, the diameters of the braiding bodies are between 1 mm and 10mm, the lengths of the braiding bodies are between 1 mm and 50mm, and the distal ends of the suction guide pipes are arranged on the developing rings.
In an alternative embodiment, the number of the braiding parts 3 on each suction catheter device can be multiple, the braiding parts 3 are distributed at intervals along the axial direction of the push rod 2, and any two adjacent braiding parts 3 are correspondingly connected, so that the braiding parts 3 form a whole; of course, the knitted bodies 3 can be fixed independently through the fixing disc 4 and the fixing cylinder sleeve 5, any two adjacent knitted bodies 3 can also be fixed through the same fixing cylinder sleeve 5, and the two knitted bodies 3 are respectively connected at two ends of the same fixing cylinder sleeve 5 through a rivet technology. It is to be understood that the above description is exemplary only and that the embodiments of the present application are not limited thereto.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A thrombus aspiration catheter device, said aspiration catheter device comprising:
a suction catheter;
a pusher bar slidably mounted within the aspiration catheter and extendable from a distal end of the aspiration catheter;
the developing piece is arranged on the outer wall of the distal end of the pushing rod and has a certain length;
the braiding body is arranged at the distal end of the pushing rod and is connected with the developing piece into a whole so as to stretch out along with the pushing rod after extending out of the distal end of the suction catheter;
the pushing rod penetrates through the braiding body along the axis of the braiding body, fixed cylinder sleeves are arranged at two ends of the braiding body, and the fixed cylinder sleeves are correspondingly sleeved on the outer wall of the pushing rod;
a fixed disc is arranged between the fixed cylinder sleeve and the braiding part;
the developing part is a developing spring which is correspondingly sleeved on the outer wall of the pushing rod and spirally extends along the axial direction of the pushing rod;
the distal end of the pushing rod is a reducing section with reduced outer diameter corresponding to the developing spring, and the developing spring is correspondingly wound on the reducing section and is fixed through glue or laser welding.
2. The thrombus aspiration catheter device of claim 1, wherein the outer diameter of said stationary disc is greater than the outer diameter of said stationary cylinder liner.
3. The thrombus-aspiration catheter device of claim 1, wherein said developing member is in the form of a strip, and a plurality of said developing members extend in the axial direction of said pusher bar and are uniformly distributed in the circumferential direction of said pusher bar.
4. The thrombus aspiration catheter device of claim 1, wherein said developing member is a developing ring, a plurality of said developing rings being equally spaced along the axial direction of said push rod.
5. The thrombus-aspiration catheter device of claim 1, wherein the distal end of said pusher bar is spherical cap-shaped and said developing spring abuts against the outer wall of said pusher bar to form a spherical cap-shaped curve at the distal end of said pusher bar.
6. The thrombus aspiration catheter device of claim 1, wherein a polymer film layer is provided on the outside of said developing member.
7. The thrombi aspiration catheter device of any one of claims 1-6, wherein said plurality of said braided bodies are arranged at intervals along the axial direction of said push rod and are connected in series as a unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211021329.7A CN115429381B (en) | 2022-08-24 | 2022-08-24 | Thrombus aspiration catheter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211021329.7A CN115429381B (en) | 2022-08-24 | 2022-08-24 | Thrombus aspiration catheter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115429381A CN115429381A (en) | 2022-12-06 |
| CN115429381B true CN115429381B (en) | 2023-04-28 |
Family
ID=84244902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211021329.7A Active CN115429381B (en) | 2022-08-24 | 2022-08-24 | Thrombus aspiration catheter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115429381B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116077138B (en) * | 2022-12-23 | 2024-04-09 | 玮铭医疗器械(上海)有限公司 | Bolt taking support and bolt taking system |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5827304A (en) * | 1995-11-16 | 1998-10-27 | Applied Medical Resources Corporation | Intraluminal extraction catheter |
| US8070694B2 (en) * | 2008-07-14 | 2011-12-06 | Medtronic Vascular, Inc. | Fiber based medical devices and aspiration catheters |
| US8771289B2 (en) * | 2009-12-21 | 2014-07-08 | Acist Medical Systems, Inc. | Thrombus removal device and system |
| JP6636908B2 (en) * | 2013-03-15 | 2020-01-29 | テルモ株式会社 | Embolism prevention device |
| JP7315241B2 (en) * | 2017-11-09 | 2023-07-26 | コンテゴ メディカル インコーポレイテッド | Thrombectomy device and method of use |
| CN113974766A (en) * | 2018-01-19 | 2022-01-28 | 上海唯域医疗科技有限公司 | Thrombus-taking catheter |
| CN109009326A (en) * | 2018-08-27 | 2018-12-18 | 恩脉（上海）医疗科技有限公司 | One kind taking bolt device system |
| CN110680457A (en) * | 2019-09-23 | 2020-01-14 | 珠海中科先进技术研究院有限公司 | Thrombus removing system |
| CN111281484A (en) * | 2020-03-25 | 2020-06-16 | 上海腾复医疗科技有限公司 | Filter screen assembly for removing pulmonary embolism thrombus and thrombus suction assembly |
| CN113180781A (en) * | 2021-06-01 | 2021-07-30 | 上海融脉医疗科技有限公司 | Winding type net disc support and conveying device thereof |
| CN113729860A (en) * | 2021-08-16 | 2021-12-03 | 万漉医疗科技(江苏)有限公司 | Thrombus removal device and method |
| CN113974777A (en) * | 2021-11-24 | 2022-01-28 | 苏州励顶生物科技有限公司 | Thrombus taking device |
| CN114469260A (en) * | 2022-01-14 | 2022-05-13 | 北京久事神康医疗科技有限公司 | Suction-matched embolectomy support and embolectomy system with same |
| CN217244650U (en) * | 2022-03-29 | 2022-08-23 | 李妮 | Intracranial thrombus removing device |
-
2022
- 2022-08-24 CN CN202211021329.7A patent/CN115429381B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115429381A (en) | 2022-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11490896B2 (en) | Delivery and detachment mechanisms for vascular implants | |
| US11857210B2 (en) | Clot retrieval device for removing clot from a blood vessel | |
| CN106618676B (en) | Intravascular thrombus taking-out device | |
| US7731676B2 (en) | Ureteral stent | |
| EP2959853A1 (en) | Thrombectomy device and thrombectomy equipment | |
| AU2016358836A1 (en) | A clot retrieval device for removing occlusive clot from a blood vessel | |
| CN111265277B (en) | Thrombus taking device | |
| CN111434314B (en) | But thrombus support and thrombus extraction device of taking out of development location | |
| CN115429381B (en) | Thrombus aspiration catheter device | |
| JP7461306B2 (en) | Core Assembly for Medical Device Delivery System - Patent application | |
| WO2021128938A1 (en) | Occluder and system | |
| CN111265280B (en) | Thrombus taking device and thrombus taking system | |
| CN108433781B (en) | Intracranial blood vessel clamping type thrombus taking device | |
| CN109350180B (en) | Support-shaped embolectomy device | |
| CN213076116U (en) | Blood flow guiding device applied to treatment of intracranial aneurysm | |
| CN111265278B (en) | Thrombus taking device and thrombus taking system | |
| CN111265279B (en) | Thrombus taking device and thrombus taking system | |
| WO2020003492A1 (en) | Catheter | |
| US20230310004A1 (en) | Hemangioma occlusion apparatus, hemangioma occlusion and treatment apparatus, and hemangioma occlusion system | |
| US20230036591A1 (en) | Medical stents | |
| CN113058134A (en) | Medical implant's propelling movement core silk and medical device | |
| CN114343781A (en) | Multi-section umbrella-shaped intracranial thrombus extraction device | |
| CN111481265A (en) | Quick-exchange type blood vessel thrombus removal device | |
| CN214970941U (en) | Medical implant's propelling movement core silk and medical device | |
| CN116439885B (en) | Multi-segment telescopic intracranial stent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |