CN119258372A - An intracranial balloon aspiration catheter - Google Patents
An intracranial balloon aspiration catheter Download PDFInfo
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- CN119258372A CN119258372A CN202411494028.5A CN202411494028A CN119258372A CN 119258372 A CN119258372 A CN 119258372A CN 202411494028 A CN202411494028 A CN 202411494028A CN 119258372 A CN119258372 A CN 119258372A
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Abstract
The invention provides an intracranial balloon suction catheter, which is characterized in that an outer tube is sleeved outside an inner tube, the distal end of the inner tube extends out of the distal end of the outer tube, the proximal end of the balloon is connected to the distal end of the outer tube, the distal end of the balloon is connected to the distal end of the inner tube, a reinforcing layer is arranged between the inner tube and the outer tube, the length of the reinforcing layer is matched with the length of the outer tube, catheter seats are correspondingly connected to the proximal ends of the inner tube and the outer tube, at least a suction port corresponding to the inner tube cavity and a liquid supply port corresponding to the reinforcing layer are arranged on the catheter seats, and in response to the supply of filling medium to the liquid supply port, the filling medium is supported on the inner wall of a blood vessel after filling the balloon passes through a filling channel, the balloon is positioned at the portion of the distal end of the inner tube extending out of the outer tube, the size of the distal end of the suction catheter is reduced, the suction catheter can conveniently extend into the blood vessel, the distal end of the suction catheter can enter the blood vessel, the diameter of the suction catheter can be increased through balloon support, and the suction force of the suction catheter can be increased.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to an intracranial balloon suction catheter.
Background
A balloon aspiration catheter is a special intravascular treatment device that combines the occlusion function of a balloon with the aspiration function of an aspiration catheter. During surgery, the balloon is placed at the distal end of the aspiration catheter, and the balloon is inflated to block blood flow, thereby creating a relatively closed environment and improving aspiration efficiency.
The balloon is positioned at the distal end of the suction catheter to block blood flow, and the design method increases the size of the distal end of the suction catheter, so that the balloon suction catheter is influenced to enter a target blood vessel, and further effective thrombus suction cannot be performed, so that the operation effect is influenced.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an intracranial balloon suction catheter.
In order to achieve the above object, the present invention provides the following technical solutions:
An intracranial balloon aspiration catheter, comprising:
The inner tube is made of elastic materials, an outer tube is sleeved outside the inner tube, and the distal end of the inner tube extends out of the distal end of the outer tube;
The reinforcing layer is positioned between the inner pipe and the outer pipe, the length of the reinforcing layer is matched with the length of the outer pipe, and a filling channel is formed in the reinforcing layer;
The proximal end of the balloon is correspondingly connected with the filling channel, and the distal end of the balloon is connected with the distal end of the inner tube;
The proximal ends of the inner tube and the outer tube are correspondingly connected with a catheter seat, and the catheter seat is at least provided with a suction port corresponding to the inner cavity of the inner tube and a liquid supply port corresponding to the reinforcing layer;
In response to feeding filling medium into the liquid supply port, the filling medium passes through the filling channel to enable the balloon to be supported on the inner wall of the blood vessel after filling.
Preferably, the reinforcing layer comprises a first layer and a second layer which are sleeved with each other, and a filling channel which is correspondingly communicated with the liquid supply port and the inner cavity of the balloon is arranged between the first layer and the second layer.
Preferably, the filling channels are flexible pipelines, and at least two flexible pipelines are uniformly distributed in the circumferential direction of the reinforcing layer.
Preferably, at least two flexible strips are supported between the first and second layers, the length of the flexible strips being adapted to the length of the reinforcing layer to form a filling channel between adjacent two of the flexible strips.
Preferably, a plurality of the flexible strips are correspondingly distributed on the elastic film sleeve.
Preferably, the diameter of the distal end of the aspiration catheter is smaller than the diameter of the proximal section.
Preferably, the distal end of the catheter seat is correspondingly sleeved with the proximal end of the outer tube, the proximal end of the catheter seat is a suction port, the liquid supply port is arranged in the middle of the catheter seat, and the inner tube extends to the proximal end side of the liquid supply port along the inner cavity of the catheter seat and is in sealing connection with the inner wall of the catheter seat.
Preferably, the inner tube is in sliding sealing connection with the catheter seat so as to adjust the axial length of the balloon by the length of the inner tube extending out of the distal end of the outer tube.
Preferably, the liquid supply port and the proximal end of the suction port are correspondingly provided with quick connectors.
Preferably, the distal ends of the outer tube and the inner tube are provided with developing rings.
The balloon has the beneficial effects that the balloon is positioned at the part of the distal end of the inner tube, which extends out of the outer tube, so that the size of the distal end of the suction catheter is reduced, the suction catheter can conveniently extend into a blood vessel, the suction catheter can enter the farther end of the blood vessel, and when the balloon is filled, the distal end of the suction catheter can increase the caliber of the blood vessel through the balloon support, so that the suction force of the suction catheter is increased.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. Wherein:
FIG. 1 is a schematic view of a suction catheter in accordance with an embodiment of the present invention;
FIG. 2 is a schematic illustration of an aspiration catheter provided with an embodiment of the present invention in a balloon inflated state;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
FIG. 4 is an enlarged schematic view of FIG. 1 at B;
FIG. 5 is a schematic diagram of a distribution of filling pipes according to an embodiment of the present invention;
FIG. 6 is a schematic view of a flexible strip distribution in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view showing the distribution of the curved plate according to the embodiment of the present invention;
FIG. 8 is a schematic view of an embodiment of the present invention in which the balloon is axially elongated;
fig. 9 is an enlarged schematic view at C in fig. 8.
In the figure, 1, a catheter seat, 2, a liquid supply port, 3, a suction port, 4, an outer tube, 5, a reinforcing layer, 6, an inner tube, 7, a balloon, 8, a developing ring, 9 and a sealing ring;
501. first layer 502, second layer 503, filling pipe 504, flexible strip 505, elastic film cover 506, arc plate 507, elastic rod 508, elastic wire.
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, or may be directly coupled or indirectly coupled through intermediate members, as will be apparent to those of ordinary skill in the art, in view of the detailed description of the terms.
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.
Reference in this disclosure to "proximal" refers to the end closer to the operator and "distal" refers to the end farther from the operator.
As shown in fig. 1, the invention provides an intracranial balloon 7 suction catheter, which comprises an inner tube 6, a balloon 7 and a reinforcing layer 5, wherein the inner tube 6 and an outer tube 4 are made of elastic materials, and can be made of PU materials, the outer tube 4 is sleeved outside the inner tube 6, and a hydrophilic coating is arranged on the outer surface of the outer tube 4.
In an alternative embodiment, the outer tube 4 is formed by adopting a plurality of polymer materials with different hardness in a seamless butt joint manner, polyamide (PA), polyether-amide block copolymer (PEBAX), polyurethane (TPU) and polyolefin elastomer (POE) are respectively arranged along the proximal end to the distal end of the outer tube 4, further, the shore hardness of the polyamide and polyether-amide block copolymer is in a range of 25 d-74 d, the material hardness of the outer tube 4 is gradually reduced from the proximal end to the distal end and is in smooth transition, and the shore hardness of polyurethane (TPU) and polyolefin elastomer (POE) at the distal end of the outer tube 4 is 30 a-62 a.
The proximal end of the inner tube 6 is made of etched polytetrafluoroethylene (e-PTFE), the distal end is made of high-density polyethylene (HDPE), the two inner tube 6 materials are in seamless butt joint, the single-side wall thickness is 0.035mm, and the inner diameter of the inner tube 6 is 0.055in. On the one hand, the balloon catheter can adapt to the shape and curvature of the blood vessel, reduce the mechanical stimulation and damage of the catheter to the blood vessel, and on the other hand, has the supporting function, and prevents the balloon 7 from being extruded towards the direction of the suction catheter when being filled.
The distal end of the inner tube 6 extends beyond the distal end of the outer tube 4, the portion of the inner tube 6 extending beyond the distal end of the outer tube 4 is provided with a balloon 7, the balloon 7 is a compliant balloon 7 made of polyurethane (TPU) and is compact and flat in shape and size before inflation, similar to an uninflated balloon, the proximal end of the balloon 7 is bonded to the distal end of the filling channel by means of medical glue, the distal end of the balloon 7 is bonded to the distal end of the inner tube 6 by means of medical glue, and the nominal filling diameter of the balloon 7 after filling is 10mm.
The proximal end of sacculus 7 is connected at the distal end of outer tube 4, the distal end of sacculus 7 is connected at the distal end of inner tube 6, thereby can make the distal end external diameter of aspiration catheter less, and then improved aspiration catheter and inserted vascular smoothness, enhancement layer 5 is located between inner tube 6 and outer tube 4, its length and outer tube 4 length looks adaptation, the proximal end of inner tube 6 and outer tube 4 corresponds and is connected with catheter holder 1, catheter holder 1 is fixed through medical glue bonding with inner tube 6 and outer tube 4, catheter holder 1 distal end is equipped with the diffusion stress interface, the diffusion stress interface is fixed on catheter holder 1 through "back-off" mode, outer tube 4 distal end surface is equipped with the hydrophilic coating of polyvinylpyrrolidone (PVP), realize through the UV photocuring mode.
As shown in fig. 2, the catheter holder 1 is provided with at least a suction port 3 corresponding to the inner cavity of the inner tube 6 and a liquid supply port 2 corresponding to the reinforcing layer 5, the suction port 3 and the liquid supply port 2 are distributed in a Y shape with the catheter holder 1, liquid is supplied to the liquid supply port 2 through liquid supply equipment in response to liquid supply to the liquid supply port 2, and a filling medium is supplied to the balloon 7 from between the reinforcing layers 5 to the distal end so that the balloon 7 is supported on the inner wall of a blood vessel after filling.
As shown in fig. 3, the distal ends of the outer tube 4 and the inner tube 6 are each provided with a developing ring 8. The content of the developing material barium sulfate (BaSO 4) is 40wt%, part of the outer wall of the inner tube 6 extending out of the far end of the outer tube 4 is set to be a conical surface, the far end of the outer tube 4 is provided with a conical head corresponding to the balloon 7, and the balloon 7 is fixed on the end face of a filling pipeline or the conical head through medical glue, so that the compliance of the outer tube 4 in vascular penetration is improved.
In an alternative embodiment, there is no less than one concentric ring of projections on the outer wall of the cone, thereby improving the stability of the connection with the balloon 7.
Correspondingly, the distal end of the balloon 7 is fixed with the inner tube 6 through medical glue, and a smooth end face is arranged at the distal end of the inner tube 6, so that the compliance of the inner tube 6 in vascular penetration is improved.
As shown in fig. 4, the reinforcing layer 5 includes a first layer 501 and a second layer 502 that are sleeved with each other, and a filling channel that is correspondingly communicated with the liquid supply port 2 and the inner cavity of the balloon 7 is arranged between the first layer 501 and the second layer 502, and the filling channel is a filling pipe 503 and is used for supplying filling medium to the balloon 7.
In another alternative embodiment, the first layer 501 and the second layer 502 are both woven layers, specifically, the proximal ends of the first layer 501 and the second layer 502 are made of 8 strands of 0.002in stainless steel double-strand round wires, variable density weaving is performed according to a two-over-two-under weaving mode, the variation range from the proximal end of the weaving section to the distal end of the weaving section is 70-100, and the weaving density of the proximal end of the weaving section is greater than the distal end of the weaving section.
The distal ends of the first layer 501 and the second layer 502 are coil spring sections, a 0.002in nickel titanium round wire double coil spring variable pitch design is adopted, and the weaving sections and the coil spring sections can be in a butt joint or lap joint mode.
In an alternative embodiment, a gap is provided between the first layer 501 and the second layer 502, and the filling channel is a flexible tube, and the material is the same as that of the balloon 7 or the inner tube, so as to ensure the stability of the two during the expansion and contraction process. Not less than two flexible pipes are circumferentially distributed about the reinforcing layer 5. The distal end of the filling channel is fixedly connected with the proximal end of the balloon 7, ensuring that the filling medium can be smoothly delivered into the balloon 7. When it is desired to inflate balloon 7, the physician may inject the appropriate amount of inflation medium into balloon 7 through the inflation channel of balloon 7. With the injection of the medium, the balloon 7 is gradually inflated and deployed, and the size thereof can be adjusted as required.
When the balloon 7 is not inflated, the diameter of the distal end of the aspiration catheter is smaller than the diameter of the proximal section, reducing the diameter of the distal end of the aspiration catheter, facilitating the aspiration catheter to enter the more distal end of the blood vessel. When the balloon 7 is inflated, the distal caliber of the suction catheter becomes larger, and the suction force of the suction catheter is increased.
As shown in fig. 5, the distal end of the catheter holder 1 is correspondingly sleeved with the proximal end of the outer tube 4, the proximal end of the catheter holder 1 is provided with a suction port 3, the liquid supply port 2 is arranged in the middle of the catheter holder 1, an included angle is formed between the liquid supply port 2 and the suction port 3, a diffusion stress tube is connected with the distal end of the catheter holder 1 and used for improving the torque resistance of the outer tube 4 and the inner tube 6 and preventing the outer tube 4 and the inner tube 6 from being broken, the proximal end of the inner tube 6 passes through the diffusion stress tube and is connected with the catheter holder 1, the inner tube 6 is communicated with the guide hole, the outer tube 4 is sleeved outside the inner tube 6, the proximal end of the outer tube 4 is connected with the diffusion stress tube, the inner tube 6 extends to the proximal end side of the liquid supply port 2 along the inner cavity of the catheter holder 1 and is in sealing connection with the inner wall of the catheter holder 1, and thus a supply channel for filling media is formed between the inner wall of the catheter holder 1 and the outer wall of the inner tube 6.
The catheter hub 1 was polyethylene terephthalate-1, 4-cyclohexanedimethanol ester (PCTG). The liquid supply port 2 and the suction port 3 are integrally formed, the diffusion stress tube adopts Polyolefin (PO), a stepped platform corresponding to the outer tube 4 is arranged on the inner wall of the far end of the catheter seat 1, the catheter seat 1 is positioned on the side of the near end of the liquid supply port 2, a stepped platform corresponding to the inner tube 6 is arranged on the side, corresponding to the inner tube 6, of the catheter seat 1, and the inner tube 6 and the outer tube 4 are fixedly connected with the catheter seat 1 through medical glue.
As shown in fig. 6, the present application provides an alternative solution for filling channels, specifically, a gap is formed between the first layer 501 and the second layer 502, at least two flexible strips 504 are supported between the first layer 501 and the second layer 502, the length of the flexible strips 504 is matched with the length of the reinforcing layer 5, the flexible strips 504 can be made of pu material, and the first layer 501 and the second layer 502 can be prevented from being tightly attached by the flexible strips 504, so that the filling channels are formed between the two adjacent flexible strips 504.
In this embodiment, the first layer 501 and the second layer 502 are fixed to the flexible strip 504 by medical glue, and thus are elastically fixed to the outside of the inner tube 6.
In this embodiment, the number of flexible strips 504 is preferably 4-6, the plurality of flexible strips 504 are correspondingly distributed on the elastic film sleeve 505, and the elastic film sleeve 505 has a certain elasticity, so that the elastic film sleeve 505 is fixed with the second layer 502 through sleeving, the material of the elastic film sleeve 505 can be the same as that of the balloon 7, and the elastic film sleeve 505 and the flexible strips 504 are adhered and fixed through medical glue.
In an alternative embodiment, the diameter of the distal end of the aspiration catheter is smaller than the diameter of the proximal section, in particular the outer wall of the outer tube 4 may be provided as a conical surface of far smaller and near larger, the outer diameter of the distal end of the outer tube 4 being 2.70mm.
As shown in fig. 7, the present application provides another alternative scheme of filling channels, specifically, a gap is formed between the first layer 501 and the second layer 502, a supporting sleeve is disposed between the first layer 501 and the second layer 502, the supporting sleeve includes two groups of arc structures that correspondingly enfold the outer wall of the second layer 502, each arc structure includes an elastic rod 507 and a plurality of arc plates 506 that are distributed at intervals, the arc plates 506 and the elastic rods 507 are made of PU materials, between the two groups of arc structures, two arc plates 506 that circumferentially correspond to the suction catheter are fixed by elastic wires 508, the elastic wires 508 may be made of PU materials, so that the two arc structures enfold the second layer, the supporting capability of the suction catheter is improved by the hollow arc structures, and the hollow gap between the two groups of arc structures may be used as a filling channel.
The outer diameters of the elastic rods 507 and the elastic wires 508 are not larger than the thickness of the arc-shaped plates 506, the elastic rods 507 and the elastic wires 508 are integrally formed, the arc-shaped angles corresponding to the arc-shaped plates 506 are 90-120 degrees, the lengths of the arc-shaped plates 506 are 3-10mm, and the interval between two adjacent arc-shaped plates 506 is 5-10mm, so that a hollowed sleeve-shaped structure corresponding to the second layer 502 is formed.
The arcuate plate 506 is secured to the first layer 501 and the second layer 502 by a medical glue.
In an alternative embodiment, the proximal ends of the liquid supply port 2 and the suction port 3 are provided with quick connectors, respectively.
As shown in fig. 8, the suction catheter of the intracranial balloon 7 comprises an inner tube 6, a balloon 7 and a reinforcing layer 5, wherein the inner tube 6 and the outer tube 4 are made of elastic materials, and can be made of PU materials, the outer tube 4 is sleeved outside the inner tube 6, and a hydrophilic coating is arranged on the outer surface of the outer tube 4.
The distal end of the inner tube 6 extends out of the distal end of the outer tube 4, the balloon 7 is arranged at the part of the inner tube 6 extending out of the distal end of the outer tube 4, the balloon 7 is a compliant balloon 7, the proximal end of the balloon 7 is communicated with a filling channel through medical glue adhesion, the distal end of the balloon 7 is adhered to the distal end of the inner tube 6 through medical glue, so that the outer diameter of the distal end of a suction catheter is smaller, the smoothness of the suction catheter in inserting the blood vessel is improved, the reinforcing layer 5 is positioned between the inner tube 6 and the outer tube 4, the length of the reinforcing layer is matched with the length of the outer tube 4, the catheter seat 1 is correspondingly connected with the proximal ends of the inner tube 6 and the outer tube 4, and the catheter seat 1 is adhered and fixed with the inner tube 6 and the outer tube 4 through medical glue. The catheter seat 1 is at least provided with a suction port 3 corresponding to the inner cavity of the inner tube 6 and a liquid supply port 2 corresponding to the reinforcing layer 5, the suction port 3 and the liquid supply port 2 are distributed in a Y shape with the catheter seat 1, liquid is supplied to the liquid supply port 2 through liquid supply equipment in response to liquid supply to the liquid supply port 2, and filling medium is supplied to the balloon 7 from a filling channel between the reinforcing layers 5 to the distal end, so that the balloon 7 is supported on the inner wall of a blood vessel after filling.
The distal ends of the outer tube 4 and the inner tube 6 are provided with a visualization ring 8 for realising the specific position of the aspiration catheter within the vessel.
In this embodiment, the axial length of the balloon 7 can be adjusted, specifically, the inner tube 6 is in sliding sealing connection with the catheter seat 1, so that the axial length of the balloon 7 can be adjusted by the length of the inner tube 6 extending out of the distal end of the outer tube 4, and the effective length of the balloon 7 can be adjusted between 10mm and 30 mm.
In this embodiment, the filling channel is preferably formed by a flexible strip 504, and the flexible strip 504, the first layer 501 and the second layer 502 are connected into a whole by adhesion of glue, and the first layer 501 is fixed with the outer tube 4 by glue, so that the reinforcing layer 5 can not slide along with the inner tube 6 when the outer tube 4 is pulled.
As shown in fig. 9, an annular groove is formed in the inner wall of the proximal end of the catheter seat 1, a sealing ring 9 is arranged in the annular groove, and the sealing ring 9 and the outer wall of the inner tube 6 are in sliding sealing, so that the inner tube 6 can be axially pulled out, and in this embodiment, a quick connector is correspondingly arranged at the proximal end of the inner tube 6 and is used for being connected with a suction device, so that suction is realized.
In an alternative embodiment, the diameter of the distal end of the suction catheter is smaller than that of the proximal section, the balloon 7 is arranged on the distal end and is integrally designed with the suction catheter, the part of the suction catheter corresponding to the outer tube 4 is composed of three layers, the inner tube 6 is made of PU materials and is used for reducing friction between the catheter and blood and reducing the risk of vascular injury, the reinforcing layer 5 adopts a net-shaped woven structure to enhance the radial supporting performance and the negative pressure suction flattening resistance of the catheter, the outer layer is a high polymer layer, and the high polymer material has the characteristic of biocompatibility, ensures good compatibility of the catheter and human tissues, and reduces the risk of infection and rejection reaction.
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 (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411494028.5A CN119258372B (en) | 2024-10-24 | 2024-10-24 | An intracranial balloon aspiration catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411494028.5A CN119258372B (en) | 2024-10-24 | 2024-10-24 | An intracranial balloon aspiration catheter |
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| Publication Number | Publication Date |
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| CN119258372A true CN119258372A (en) | 2025-01-07 |
| CN119258372B CN119258372B (en) | 2025-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411494028.5A Active CN119258372B (en) | 2024-10-24 | 2024-10-24 | An intracranial balloon aspiration catheter |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067965A1 (en) * | 2011-11-10 | 2013-05-16 | 上海微创医疗器械（集团）有限公司 | Balloon dilation catheter |
| CN108472475A (en) * | 2015-11-13 | 2018-08-31 | 波士顿科学国际有限公司 | Direct visualizztion devices, systems, and methods for being passed through across interventricular septum |
| CN210447828U (en) * | 2019-03-21 | 2020-05-05 | 蚌埠医学院第一附属医院 | Anti-falling device for percutaneous transhepatic biliary tract drainage tube |
| CN210992492U (en) * | 2019-06-07 | 2020-07-14 | 赤峰学院附属医院 | A kind of auxiliary device for gastric tube insertion |
| CN215608673U (en) * | 2021-06-24 | 2022-01-25 | 东莞市人民医院 | A microcatheter with a microballoon at the front end |
| CN114247036A (en) * | 2021-12-24 | 2022-03-29 | 巩义市人民医院 | Automatic wetting device of guide wire for interventional therapy |
| CN114796809A (en) * | 2022-03-30 | 2022-07-29 | 深圳市顺美医疗股份有限公司 | Balloon guide catheter |
| CN217091771U (en) * | 2021-12-03 | 2022-08-02 | 上海心玮医疗科技股份有限公司 | Sacculus supporting catheter |
| CN115869519A (en) * | 2023-01-17 | 2023-03-31 | 深圳市第二人民医院(深圳市转化医学研究院) | A balloon guide catheter |
| CN118615562A (en) * | 2023-11-02 | 2024-09-10 | 苏州徕瑞医疗技术有限公司 | A balloon guide catheter |
-
2024
- 2024-10-24 CN CN202411494028.5A patent/CN119258372B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067965A1 (en) * | 2011-11-10 | 2013-05-16 | 上海微创医疗器械（集团）有限公司 | Balloon dilation catheter |
| CN108472475A (en) * | 2015-11-13 | 2018-08-31 | 波士顿科学国际有限公司 | Direct visualizztion devices, systems, and methods for being passed through across interventricular septum |
| CN210447828U (en) * | 2019-03-21 | 2020-05-05 | 蚌埠医学院第一附属医院 | Anti-falling device for percutaneous transhepatic biliary tract drainage tube |
| CN210992492U (en) * | 2019-06-07 | 2020-07-14 | 赤峰学院附属医院 | A kind of auxiliary device for gastric tube insertion |
| CN215608673U (en) * | 2021-06-24 | 2022-01-25 | 东莞市人民医院 | A microcatheter with a microballoon at the front end |
| CN217091771U (en) * | 2021-12-03 | 2022-08-02 | 上海心玮医疗科技股份有限公司 | Sacculus supporting catheter |
| CN114247036A (en) * | 2021-12-24 | 2022-03-29 | 巩义市人民医院 | Automatic wetting device of guide wire for interventional therapy |
| CN114796809A (en) * | 2022-03-30 | 2022-07-29 | 深圳市顺美医疗股份有限公司 | Balloon guide catheter |
| CN115869519A (en) * | 2023-01-17 | 2023-03-31 | 深圳市第二人民医院(深圳市转化医学研究院) | A balloon guide catheter |
| CN118615562A (en) * | 2023-11-02 | 2024-09-10 | 苏州徕瑞医疗技术有限公司 | A balloon guide catheter |
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| CN119258372B (en) | 2025-05-16 |
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