CN114366214B - Hydrophilic guide plugging guide wire - Google Patents
Hydrophilic guide plugging guide wire Download PDFInfo
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- CN114366214B CN114366214B CN202210102384.2A CN202210102384A CN114366214B CN 114366214 B CN114366214 B CN 114366214B CN 202210102384 A CN202210102384 A CN 202210102384A CN 114366214 B CN114366214 B CN 114366214B
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- Prior art keywords
- balloon catheter
- developing spring
- hydrophilic
- rod body
- developing
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- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 210000005077 saccule Anatomy 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 description 9
- 238000011161 development Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 201000008450 Intracranial aneurysm Diseases 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003073 embolic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000031169 hemorrhagic disease Diseases 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12136—Balloons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09008—Guide wires having a balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09116—Design of handles or shafts or gripping surfaces thereof for manipulating guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09133—Guide wires having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09166—Guide wires having radio-opaque features
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Reproductive Health (AREA)
- Vascular Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Neurosurgery (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a hydrophilic guide plugging guide wire, which belongs to the technical field of guide wires, and comprises the following components: the developing spring is positioned at the far end and used for penetrating into the balloon catheter to block the hole in the balloon catheter, and the outer part of the developing spring is coated with a first coating; and the rod body is positioned at the end part of the developing spring and used for enabling the developing spring to enter the balloon catheter. The balloon catheter is plugged by guiding the plugging guide wire, and a physical plugging mode is adopted for the catheter, so that the matched balloon catheter fills more rapidly and effectively fills the balloon; the distal end of the developing spring is provided with the rod body, so that the balloon can be smoothly decompressed when the developing spring part penetrates out of the distal end of the balloon catheter; the guide plugging guide wire has a simple structure, reduces the manufacturing cost, and is more convenient and easy to operate when being matched with a plugging saccule catheter for clinical use.
Description
Technical Field
The invention belongs to the technical field of guide wires, and particularly relates to a hydrophilic guide plugging guide wire.
Background
With the increasing number of patients suffering from hemorrhagic diseases such as intracranial aneurysms, the development of medical instruments and interventional techniques is continuously advocated in recent countries by considering extremely high disability rate and mortality rate, and along with the accumulation of experience of nerve interventional doctors, intravascular treatment has become the first treatment method for reducing the re-bleeding rate and mortality rate of intracranial aneurysms.
The existing balloon catheter is generally designed by adopting a double-cavity tube body, such as a head end double-cavity balloon catheter proposed by publication No. CN110575605A, the common double-cavity tube body comprises a wire guide tube cavity and a water injection tube cavity, the tail end of the catheter body is provided with a wire guide port and a water injection hole, a matched wire enters the wire guide tube cavity through the wire guide port, the guide tube enters a blood vessel, the novel intracranial plugging balloon catheter proposed by the phenomenon is used for assisting temporary blood vessel plugging in other instrument operations, blocking and control of blood flow are facilitated, the balloon plugging device can also be used for balloon auxiliary embolic treatment of intracranial aneurysms, the wire guide function is a single guide effect, the water injection hole is communicated with the balloon through the catheter body under the conventional design to form the water injection tube cavity as a filling balloon channel to realize filling and venting balloons, the design has high requirement on filling and venting operation, the condition of difficult pressure relief operation exists, and the clinical operation is more complicated.
Disclosure of Invention
The invention aims to provide a hydrophilic guide plugging guide wire so as to solve the problem of the prior guide wire in the use process in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a hydrophilic-guiding occlusion guidewire, comprising:
the developing spring is positioned at the far end and used for penetrating into the balloon catheter to block the hole in the balloon catheter, and the outer part of the developing spring is coated with a first coating;
and the rod body is positioned at the end part of the developing spring and used for enabling the developing spring to enter the balloon catheter.
Preferably, the outer diameter of the developing spring is matched with the inner diameter size of the sealing part of the inner cavity of the balloon catheter.
Preferably, an inner core is provided inside the developing spring.
Preferably, the distal end of the inner core is arranged in a rectangular configuration.
Preferably, the proximal end of the core is circular in cross-section.
Preferably, the outer diameter of the circular cross section of the proximal end of the inner core becomes gradually larger toward one end of the rod body.
Preferably, the outer part of the rod body is coated with a second coating.
Preferably, the first coating and the second coating are hydrophilic coatings.
Preferably, the shaft body has a tendency to gradually contract in a distal direction.
Preferably, a rotator is arranged at one end of the rod body away from the developing spring.
Compared with the prior art, the invention has the beneficial effects that:
the balloon catheter is plugged by guiding the plugging guide wire, and a physical plugging mode is adopted for the catheter, so that the matched balloon catheter fills more rapidly and effectively fills the balloon; the distal end of the developing spring is provided with the rod body, so that the balloon can be smoothly decompressed when the developing spring part penetrates out of the distal end of the balloon catheter; the guide plugging guide wire has a simple structure, reduces the manufacturing cost, and is more convenient and easy to operate when being matched with a plugging saccule catheter for clinical use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a developing spring according to the present invention;
FIG. 3 is a schematic view of the core structure of the present invention;
fig. 4 is a schematic view of the mounting structure of the present invention.
In the figure: 1. a developing spring; 11. an inner core; 2. a rod body; 3. a rotator; 4. coating I; 5. and (3) a second coating layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a hydrophilic-guiding occlusion guidewire, comprising:
the developing spring 1 is positioned at the far end and used for penetrating into the balloon catheter to block the hole in the balloon catheter, and the outer part of the developing spring is coated with a coating layer I4;
and a rod body 2 positioned at the end of the developing spring 1 for allowing the developing spring 1 to enter the interior of the balloon catheter.
In this embodiment, the interior hole of balloon catheter is carried out accurate shutoff through the development spring 1 part of seal wire, effectively fills the sacculus to because the distal end of development spring 1 sets up body of rod 2, can make the sacculus pressure release smoothly when the development spring 1 part wears out the sacculus catheter distal end.
The balloon of the balloon catheter is internally provided with a pipe fitting, the pipe fitting is provided with a hole for filling the balloon with fluid, and the part which is required to be plugged is the filling hole.
The guide wire has a rod-like structure as a whole, and the distal end in this case means the end far from the operator, so to speak, the end of the developing spring 1 is the distal end, and the end near the rotator 3 is the proximal end.
Specifically, the outer diameter of the developing spring 1 is matched with the inner diameter size of the sealing part of the inner cavity of the balloon catheter.
In this embodiment, the outer diameter of the developing spring 1 is sized to just block the inflation hole of the balloon catheter, and adjacent coils of the developing spring 1 are tightly connected.
The outer diameter of the developing spring 1 is matched with the inner diameter of the sealing part of the inner cavity of the balloon catheter, so that the sealing state during the matching is achieved, and the hole is physically and accurately sealed.
Specifically, the inside of the developing spring 1 is provided with an inner core 11.
In this embodiment, the developing spring 1 is wound around the inner core 11.
Specifically, the distal end of the core 11 is provided in a rectangular-like structure.
In this embodiment, the distal end of the inner core 11 is processed and designed by a flattening process, so that the circular structure of the inner core 11 is flattened, the circular section is changed into a rectangular or polygonal structure, and the inner wall of the developing spring 1 is fixed by the rectangular structure, so as to improve the concentricity of the developing spring 1.
Specifically, the proximal end of the core 11 is circular in cross-section.
In the present embodiment, the inner core 11 is used to support and fix the developing spring 1.
Specifically, the outer diameter of the circular cross section of the proximal end of the inner core 11 becomes gradually larger toward one end of the rod body 2.
In this embodiment, the proximal end of the inner core 11 is designed as a gradual circle, and its outer diameter gradually increases toward the proximal end for fixing the developing spring 1.
Specifically, the outer portion of the rod body 2 is coated with a second coating layer 5.
Specifically, the first coating layer 4 and the second coating layer 5 are hydrophilic coatings.
In this embodiment, the first coating layer 4 is coated on the outer portion of the developing spring 1, the second coating layer 5 is coated on the outer portion of the rod body 2, and both the first coating layer 4 and the second coating layer 5 are hydrophilic coatings, so that the trafficability of the guide wire is improved, and the developing spring 1 and the rod body 2 can smoothly pass through the balloon catheter.
The first coating 4 and the second coating 5 may be the same or different, and since the distal end of the rod 2 needs to be inserted into the balloon catheter, the end of the rod 2 connected to the developing spring 1 may be provided with the first coating 4, while the other part of the rod 2 is provided with the second coating 5.
Specifically, the rod body 2 has a tendency to gradually contract in the distal direction.
In this embodiment, the diameter of the shaft body 2 gradually decreases toward the distal direction, which may be referred to herein as a gradual diameter design, to improve the softness of the guidewire and make it more smoothly pass through the balloon catheter.
Specifically, the end of the rod body 2 remote from the developing spring 1 is provided with a rotator 3.
In this embodiment, the rotator 3 is used to hold an operative guide wire for ease of surgical manipulation.
Referring to fig. 4, a schematic view of the distal end of the guide wire entering the balloon catheter is shown, when the guide sealing guide wire is matched with the balloon catheter, the balloon can be effectively filled when the guide wire developing spring penetrates to the distal end of the balloon catheter and the inner cavity of the balloon catheter to achieve accurate sealing, and the guide sealing guide wire developing spring can smoothly release pressure when partially penetrating out of the distal end of the balloon catheter.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A hydrophilic guide occlusion guidewire, characterized by: comprising the following steps:
a developing spring (1) positioned at the far end and used for penetrating into the interior of the balloon catheter to seal the filling hole in the interior of the balloon catheter, and the exterior of the developing spring is coated with a first coating (4);
the rod body (2) is positioned at the end part of the developing spring (1) and is used for enabling the developing spring (1) to enter the balloon catheter to plug the filling hole, and after the sealing is finished, the rod body (2) drives the developing spring (1) to penetrate out of the far end of the balloon catheter to expose the filling hole so as to realize balloon pressure relief;
an inner core (11) is arranged in the developing spring (1), and the far end of the inner core (11) is arranged into a rectangular structure and is used for fixing the inner wall of the developing spring (1);
the outer diameter of the circular cross section of the proximal end of the inner core (11) gradually increases towards one end of the rod body (2).
2. A hydrophilic-guiding occlusion guidewire as in claim 1, wherein: the outer diameter of the developing spring (1) is matched with the inner diameter of the sealing part of the inner cavity of the balloon catheter.
3. A hydrophilic-guiding occlusion guidewire as in claim 1, wherein: the cross section of the proximal end of the inner core (11) is round.
4. A hydrophilic-guiding occlusion guidewire as in claim 1, wherein: the outer part of the rod body (2) is coated with a second coating (5).
5. The hydrophilic guided occlusion guidewire of claim 4, wherein: the first coating (4) and the second coating (5) are hydrophilic coatings.
6. A hydrophilic-guiding occlusion guidewire as in claim 1, wherein: the rod body (2) gradually contracts towards the distal direction.
7. A hydrophilic-guiding occlusion guidewire as in claim 1, wherein: one end of the rod body (2) far away from the developing spring (1) is provided with a rotator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210102384.2A CN114366214B (en) | 2022-01-27 | 2022-01-27 | Hydrophilic guide plugging guide wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210102384.2A CN114366214B (en) | 2022-01-27 | 2022-01-27 | Hydrophilic guide plugging guide wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114366214A CN114366214A (en) | 2022-04-19 |
| CN114366214B true CN114366214B (en) | 2024-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210102384.2A Active CN114366214B (en) | 2022-01-27 | 2022-01-27 | Hydrophilic guide plugging guide wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114366214B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115137948A (en) * | 2022-06-27 | 2022-10-04 | 上海心玮医疗科技股份有限公司 | Shutoff sacculus pipe subassembly |
| CN115957425A (en) * | 2022-12-29 | 2023-04-14 | 鼎科医疗技术（苏州）有限公司 | Developable balloon dilatation catheter with folding-resistant conveying system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544217B1 (en) * | 1999-02-01 | 2003-04-08 | Micro Therapeutics, Inc. | Guidewire-occluded balloon catheter |
| JP2004216189A (en) * | 2004-04-27 | 2004-08-05 | Scimed Life Syst Inc | Balloon catheter guide wire assembly |
| CN211214889U (en) * | 2019-06-06 | 2020-08-11 | 徐勇 | Balloon catheter capable of controlling blood flow blocking amount |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020177870A1 (en) * | 2001-05-25 | 2002-11-28 | Ivan Sepetka | Single lumen balloon catheter |
| US20060206137A1 (en) * | 2003-04-24 | 2006-09-14 | Invatec S.R.1. | Balloon structure and balloon catheter |
-
2022
- 2022-01-27 CN CN202210102384.2A patent/CN114366214B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544217B1 (en) * | 1999-02-01 | 2003-04-08 | Micro Therapeutics, Inc. | Guidewire-occluded balloon catheter |
| JP2004216189A (en) * | 2004-04-27 | 2004-08-05 | Scimed Life Syst Inc | Balloon catheter guide wire assembly |
| CN211214889U (en) * | 2019-06-06 | 2020-08-11 | 徐勇 | Balloon catheter capable of controlling blood flow blocking amount |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114366214A (en) | 2022-04-19 |
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