CN115281771A - Embolism device - Google Patents
Embolism device Download PDFInfo
- Publication number
- CN115281771A CN115281771A CN202210977781.4A CN202210977781A CN115281771A CN 115281771 A CN115281771 A CN 115281771A CN 202210977781 A CN202210977781 A CN 202210977781A CN 115281771 A CN115281771 A CN 115281771A
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- Prior art keywords
- elastic body
- guide wire
- limiting
- embolization device
- clamping
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- 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.)
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- 208000005189 Embolism Diseases 0.000 title abstract description 5
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000010102 embolization Effects 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 9
- 230000003073 embolic effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 206010002329 Aneurysm Diseases 0.000 abstract description 29
- 210000004204 blood vessel Anatomy 0.000 abstract description 4
- 230000017531 blood circulation Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011977 dual antiplatelet therapy Methods 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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Classifications
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- 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
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12177—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
-
- 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
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurosurgery (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to an embolism device, which comprises: the elastic body is provided with a hollow cavity; one end of the guide wire penetrates through the elastic body and is connected with the head end of the elastic body, and the other end of the guide wire extends out of the elastic body; the adjusting structure is arranged in the hollow cavity and comprises a limiting part connected with the tail end of the elastic body and a clamping part which is arranged on the guide wire and close to the head end of the elastic body, the guide wire is pulled, the clamping part is driven to move towards the limiting part, and the clamping part is clamped and fixed at the corresponding position of the limiting part so as to change the shape of the elastic body; according to the technical scheme, the shape of the elastic body is changed by pulling the guide wire, so that the elastic body is suitable for aneurysms of different shapes and sizes, the effect of blood flow force on an aneurysm cavity is weakened, the repair and reconstruction of a blood vessel are realized, and the aneurysm is effectively treated; and is fixed on the limiting part through the clamping of the clamping part so as to conveniently fix the shape of the elastic body.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an embolism device.
Background
An aneurysm is an abnormal bulge formed by gradual expansion of an arterial vessel under the action of hemodynamic load and other factors, wherein the arterial vessel is locally damaged by a vessel wall due to congenital abnormality or acquired injury and the like. Wide neck bifurcation aneurysms in aneurysms patients have an increased risk of sudden and potentially fatal bleeding from the aneurysm due to increased arterial flow and pressure. The primary goal in treating wide-necked bifurcated aneurysms is to prevent rupture and associated morbidity and mortality. Interventions currently available for wide-neck bifurcation aneurysms include open surgical clipping and endovascular interventions. Open surgical clips can bring huge wounds and infection risks to patients, and the incidence of postoperative complications is high. The current common intravascular interventional therapies include single coil embolization, balloon-assisted coil embolization, stent-assisted coil embolization, and implantable intravascular devices (e.g., stents and blood flow directing devices), which have many complications and high recurrence rates for wide-necked bifurcated aneurysms and require patients to receive dual antiplatelet therapies.
However, the shape and size of the embolus in the above treatment methods are relatively fixed, and it is difficult to adapt to aneurysms of different shapes and sizes.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect of the prior art that embolization is difficult to adapt to aneurysms of different shapes and sizes, and based on the above, it is necessary to develop an embolization device with adjustable size.
In order to achieve the above object, the present invention provides an embolization device comprising:
the elastic body is provided with a hollow cavity;
one end of the guide wire penetrates through the elastic body and is connected with the head end of the elastic body, and the other end of the guide wire extends out of the elastic body;
the adjusting structure is arranged in the hollow cavity and comprises a limiting part connected with the tail end of the elastic body and a clamping part arranged on the guide wire and close to the head end of the elastic body, the guide wire is pulled to drive the clamping part to move towards the limiting part, and the clamping part is fixed at the corresponding position of the limiting part to change the shape of the elastic body.
Optionally, the locating part is a barrel, the clamping parts are arranged on the guide wire at intervals, a limiting structure is arranged on one side of the head end of the elastic body, which faces the barrel, and a through hole allowing the clamping parts to pass through and be clamped inside the barrel is formed in the limiting structure.
Optionally, a plurality of spaced slots arranged along the radial direction are arranged on the limiting structure, and the inner diameter of the through hole is smaller than the maximum length of the projection of the clamping member in the direction perpendicular to the axial direction of the guide wire.
Optionally, the limiting structure is a conical cylinder, and the through hole is formed in the small end of the conical cylinder.
Optionally, a diameter of a portion of the guidewire within the elastomeric body is smaller than a diameter of another portion extending outside of the elastomeric body.
Optionally, an elastic member is connected between the head end of the elastic body and the guide wire.
Optionally, the method further comprises:
and the fixing structure is arranged at the tail end of the elastic body and corresponds to the limiting part.
Optionally, a developing assembly is disposed on both the elastic body and the fixed structure.
Optionally, the method further comprises:
and the guiding sheath pipe is sleeved outside the elastic body and the fixing structure.
Optionally, the method further comprises:
the releaser is connected with one end of the guide wire extending out of the guide sheath;
a separation point is arranged on the guide wire at one side of the clamping piece close to the tail end of the elastic body;
when the detacher is energized, the guidewire is disconnected at the detachment point.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. the invention provides an embolization device comprising: the elastic body is provided with a hollow cavity; one end of the guide wire penetrates through the elastic body and is connected with the head end of the elastic body, and the other end of the guide wire extends out of the elastic body; the adjusting structure is arranged in the hollow cavity and comprises a limiting part connected with the tail end of the elastic body and a clamping part which is arranged on the guide wire and close to the head end of the elastic body, the guide wire is pulled, the clamping part is driven to move towards the limiting part, and the clamping part is clamped and fixed at the corresponding position of the limiting part so as to change the shape of the elastic body; according to the technical scheme, the shape of the elastic body is changed by pulling the guide wire, so that the elastic body is suitable for aneurysms of different shapes and sizes, the effect of blood flow force on an aneurysm cavity is weakened, the repair and reconstruction of a blood vessel are realized, and the aneurysm is effectively treated; and is fixed on the limiting part through the clamping of the clamping part so as to conveniently fix the shape of the elastic body.
2. The limiting parts are barrel bodies, the clamping parts are arranged on the guide wires at intervals, a limiting structure is arranged on one side of the barrel body, facing the head end of the elastic body, and a through hole allowing the clamping parts to pass through and be clamped in the barrel body is formed in the limiting structure; this application technical scheme prescribes a limit part's concrete structure to through setting up a plurality of cards and holding the piece, hold the piece card with different cards and hold in the through-hole, the seal wire pulls different distances, changes the shape of elastic body, thereby makes elastic body conveniently adapt to the shape of aneurysm.
3. The limiting structure is provided with a plurality of spaced slots arranged along the radial direction, and the inner diameter of the through hole is smaller than the maximum length of the projection of the clamping piece in the direction vertical to the axial direction of the guide wire; according to the technical scheme, the clamping piece can conveniently pass through the limiting structure by arranging the open groove; the relation between the inner diameter of the through hole and the maximum length of the clamping piece is limited, so that the clamping piece is reliably clamped and fixed in the through hole.
4. The limiting structure is a conical cylinder, and the through hole is formed in the small end of the conical cylinder; this application adopts above-mentioned technical scheme, and the form that specifically prescribes a limit to structure is a awl section of thick bamboo, does the card is held the piece and is passed through the through-hole plays certain guide effect.
5. The diameter of one part of the guide wire positioned in the elastic body is smaller than that of the other part extending to the outside of the elastic body; the guide wires are arranged in different diameters, and the guide wires in the elastic body are smaller in diameter, so that the clamping piece can be fixed, and the guide wires have certain flexibility and can smoothly pass through the limiting piece; the guide wire positioned outside the elastic body has a larger diameter, so that the conveying of the elastic body is ensured, and certain strength is achieved.
6. The elastic part is connected and arranged between the head end of the elastic body and the guide wire; this application is through setting up the elastic component, and the blood pressure in the aneurysm is whole to exert pressure to the elastic body, and the elastic component also receives the influence of above-mentioned pressure, promotes the elastic component compression or extension, and then the pulling or promote the head end of elastic body to make the shape and the size of elastic body self-adaptation aneurysm.
7. The embolization device provided by the invention further comprises: the fixing structure is arranged at the tail end of the elastic body and corresponds to the limiting piece; this application adopts above-mentioned technical scheme, sets up fixed knot at elastic body's tail end and constructs to fix reliably elastic body.
8. The developing assemblies are arranged on the elastic body and the fixed structure; this application adopts above-mentioned technical scheme, through setting up the development subassembly, conveniently sees the position of elastic body and fixed knot structure in blood vessel and aneurysm.
9. The embolization device provided by the invention further comprises: the guiding sheath pipe is sleeved outside the elastic body and the fixing structure; by adopting the technical scheme, the elastic body and the fixed structure are protected to a certain extent by arranging the lead-in sheath tube; and conveniently dock with a microcatheter delivering the elastomeric body into the aneurysm.
10. The embolization device provided by the invention further comprises: the releaser is connected with one end of the guide wire extending out of the guide sheath; a separation point is arranged on the guide wire at one side of the clamping piece close to the tail end of the elastic body; when the detacher is energized, the guidewire is disconnected at the detachment point; this application adopts above-mentioned technical scheme, is in with the seal wire the separation point conveniently breaks off to conveniently separate elastic body and seal wire.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a first schematic cross-sectional view of an embolic device provided in an embodiment of the present invention;
FIG. 2 is a second cross-sectional structural schematic of an embolic device provided in an embodiment of the present invention;
fig. 3 is a schematic side view of a position limiting member according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structural view of a position limiting member according to an embodiment of the present invention;
FIG. 5 is a first schematic cross-sectional view of an embolic device in an aneurysm, according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of the structure shown at A in FIG. 5;
FIG. 7 is a second schematic cross-sectional view of an embolic device in an aneurysm according to an embodiment of the present invention;
FIG. 8 is a schematic view of a portion B of FIG. 7;
FIG. 9 is a third schematic cross-sectional view of an embolic device in an aneurysm, according to an embodiment of the present invention;
FIG. 10 is an enlarged partial view of the structure at C in FIG. 9;
FIG. 11 is a first schematic structural view of a retaining member provided in an embodiment of the present invention;
FIG. 12 is a second schematic structural view of a retaining member according to an embodiment of the present invention;
FIG. 13 is a third schematic structural view of a retaining member provided in an embodiment of the present invention;
FIG. 14 is a fourth schematic structural view of a retaining member provided in an embodiment of the present invention;
FIG. 15 is a schematic structural view of a retaining member provided in an embodiment of the present invention
FIG. 16 is a cross-sectional structural schematic view of delivery of an embolic device to an aneurysm as provided in an embodiment of the present invention.
Description of reference numerals:
1. a head end; 2. a retaining member; 3. an elastic member; 4. a separation point; 5. an elastic body; 6. a limiting member; 7. a fixed structure; 8. a microcatheter; 9. a guide wire; 10. a disengager; 11. grooving; 12. and (4) introducing the sheath.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
One embodiment of an embolization device as shown in fig. 1-15 for embolization of aneurysms, particularly wide-necked bifurcated aneurysms, comprises: the utility model discloses an elastic component is including the elastic body 5 that is equipped with the cavity, follow the inside seal wire 9 that runs through of elastic body 5, set up in the regulation structure of cavity, set up in the fixed knot who the 5 tail ends of elastic body 7, cover establish at the leading-in sheath pipe 12 of elastic body 5 and fixed knot portion 7 outside, with seal wire 9 stretches out the ware 10 of releasing that the one end of leading-in sheath pipe 12 is connected and set up elastic component 3 between elastic body 5's head end 1 and seal wire 9 etc..
As shown in fig. 1 and 2, the elastic body 5 is a net structure woven by a plurality of strands of high elastic alloy wires; one end of the guide wire 9 is connected with the head end 1 of the elastic body 5, and the other end of the guide wire 9 extends out of the elastic body 5. The adjusting structure comprises a limiting part 6 connected with the tail end of the elastic body 5 and a clamping part 2 which is arranged on the guide wire 9 and close to the head end of the elastic body 5, the guide wire 9 is pulled to drive the clamping part 2 to move towards the limiting part 6, and the clamping part is fixed at the corresponding position of the limiting part 6 to change the shape and size of the elastic body 5. The diameter of the portion of the guide wire 9 located inside the elastic body 5 is smaller than the diameter of another portion extending outside the elastic body 5. An elastic part 3 is connected between the head end 1 of the elastic body 5 and the guide wire 9, and specifically, the elastic part 3 is a spring. The fixing structure 7 is disposed corresponding to the limiting member 6. The elastic body 5 and the fixed structure 7 are both provided with a developing assembly, specifically, the developing assembly is a developing ring. A separation point 4 is arranged on the guide wire 9 at one side of the clamping piece 2 close to the tail end of the elastic body 5; when the release 10 is energized, the guide wire 9 is disconnected at said separation point 4.
As shown in fig. 1, 3 and 4, the limiting members 6 are cylinders, the clamping members 2 are four that are arranged on the guide wire 9 at intervals, a limiting structure is arranged on one side of the cylinder facing the head end of the elastic body 5, and a through hole allowing the clamping member 2 to pass through and be clamped inside the cylinder is arranged on the limiting structure. The limiting structure is provided with three spaced slots 11 arranged along the radial direction, and the inner diameter of the through hole is smaller than the maximum length of the projection of the clamping piece in the direction perpendicular to the axial direction of the guide wire 9. The limiting structure is a cone, and the small end of the cone is arranged in the through hole.
As shown in fig. 5 to 10, when the guide wire 9 is pulled in a direction away from the head end 1 of the elastic body 5, the size of the elastic body 5 in the lengthwise direction of the guide wire 9 decreases, and the size in the direction perpendicular to the lengthwise direction of the guide wire 9 increases; when the guide wire 9 is pushed towards the direction close to the head end 1 of the elastic body 5, the dimension of the elastic body 5 in the length direction of the guide wire 9 increases, and the dimension in the direction perpendicular to the length direction of the guide wire 9 decreases. The deformation size of the elastic body 5 is adjusted by changing the number of the clamping pieces 2 entering the cylinder, and the more the number of the clamping pieces 2 entering the cylinder is, the larger the deformation of the elastic body 5 is. The elastic member 3 finely adjusts the shape and size of the elastic body 5.
As shown in fig. 11 to 15, the holding member 2 is in the shape of a sphere, a cylinder, a truncated cone, a cone or two strips obliquely arranged relative to each other.
As shown in FIGS. 2 and 16, the embolization device of the present invention may be used in the following brief:
firstly, the guiding sheath 12 is butted with the micro-catheter 8, and the elastic body 5, the fixed structure 7 and the like in the guiding sheath 12 are pushed into the micro-catheter 8; then, the elastic body 5 is conveyed into the aneurysm through a blood vessel by a guide wire 9; observing the position of the conveyance through the elastic body 5 and the developing ring on the fixed structure 7; when the elastic body 5 reaches the inside of the aneurysm, the guide wire 9 is pulled outwards, the shape and the size of the elastic body 5 are changed, and the shape and the size of the elastic body 5 are basically adapted to the shape and the size of the aneurysm through observation of the elastic body 5 and a developing ring on the fixed structure 7, the releaser 10 is electrified, and the guide wire 9 is disconnected at the separation point 4; the broken guide wire 9 is withdrawn. The elastic member 3 finely adjusts the shape and size of the elastic body 5.
As an alternative embodiment, the holding member 2 is provided as one, and a plurality of spaced limiting structures are provided on the limiting member 6. The shape and size of the elastic body 5 are adjusted by changing the positions of the clamping piece 2 and the limiting structure.
As an alternative embodiment, the elastic body 5 is a hollow elastic gel.
As an alternative embodiment, the limiting structure of the cylinder is an elastic membrane, and the inner diameter of the through hole on the limiting structure is slightly smaller than the diameter of the spherical clamping member 2, so that the clamping member 2 can pass through the through hole of the elastic membrane under the driving of the guide wire 9 and be clamped behind the elastic membrane.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. An embolic device, comprising:
an elastic body (5) having a hollow cavity;
one end of the guide wire (9) penetrates through the elastic body (5) and is connected with the head end (1) of the elastic body (5), and the other end of the guide wire (9) extends out of the elastic body (5);
the adjusting structure is arranged in the hollow cavity and comprises a limiting part (6) connected with the tail end of the elastic body (5) and a clamping part (2) close to the head end of the elastic body (5) on the guide wire (9), the guide wire (9) is pulled to drive the clamping part (2) to move towards the limiting part (6), and the clamping part is fixed to the corresponding position of the limiting part (6) to change the shape of the elastic body (5).
2. The embolization device according to claim 1, wherein the limiting member (6) is a cylinder, the retaining members (2) are arranged on the guide wire (9) at intervals, and a limiting structure is arranged on one side of the cylinder facing the head end of the elastic body (5), and is provided with a through hole for allowing the retaining members (2) to pass through and be retained inside the cylinder.
3. The embolization device according to claim 2, wherein a plurality of spaced slots (11) arranged in the radial direction are provided in the limiting structure, and the inner diameter of the through hole is smaller than the maximum length of the projection of the retainer (2) in the direction perpendicular to the axial direction of the guide wire (9).
4. The embolization device according to claim 3, wherein the limiting structure is a conical cylinder, and the through hole is provided at the small end of the conical cylinder.
5. The embolization device according to any one of claims 1 to 4, wherein the diameter of the part of the guide wire (9) located inside the elastic body (5) is smaller than the diameter of another part extending outside the elastic body (5).
6. An embolization device according to any one of claims 1-4, wherein an elastic member (3) is connected between the head end (1) of the elastic body (5) and the guide wire (9).
7. The embolization device of claim 5, further comprising:
and the fixing structure (7) is arranged at the tail end of the elastic body (5) and corresponds to the limiting part (6).
8. The embolization device of claim 7,
and the elastic body (5) and the fixed structure (7) are both provided with developing assemblies.
9. The embolization device of claim 7, further comprising:
and the guiding sheath tube (12) is sleeved outside the elastic body (5) and the fixed structure (7).
10. The embolization device of claim 9, further comprising:
the releaser (10) is connected with one end of the guide wire (9) extending out of the guide sheath (12);
a separation point (4) is arranged on the guide wire (9) of the clamping piece (2) close to one side of the tail end of the elastic body (5);
when the release (10) is energized, the guide wire (9) is disconnected at the separation point (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210977781.4A CN115281771A (en) | 2022-08-15 | 2022-08-15 | Embolism device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210977781.4A CN115281771A (en) | 2022-08-15 | 2022-08-15 | Embolism device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115281771A true CN115281771A (en) | 2022-11-04 |
Family
ID=83829884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210977781.4A Pending CN115281771A (en) | 2022-08-15 | 2022-08-15 | Embolism device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115281771A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030028209A1 (en) * | 2001-07-31 | 2003-02-06 | Clifford Teoh | Expandable body cavity liner device |
| CN215606011U (en) * | 2021-06-24 | 2022-01-25 | 上海暖阳医疗器械有限公司 | Conveying mechanism for fixing aneurysm plugging device by using elastic body |
| US20230320733A1 (en) * | 2020-08-31 | 2023-10-12 | Microport Neurotech (Shanghai) Co., Ltd. | Aneurysm occlusion device, therapeutic apparatus for aneurysm occlusion and aneurysm occlusion system |
-
2022
- 2022-08-15 CN CN202210977781.4A patent/CN115281771A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030028209A1 (en) * | 2001-07-31 | 2003-02-06 | Clifford Teoh | Expandable body cavity liner device |
| US20230320733A1 (en) * | 2020-08-31 | 2023-10-12 | Microport Neurotech (Shanghai) Co., Ltd. | Aneurysm occlusion device, therapeutic apparatus for aneurysm occlusion and aneurysm occlusion system |
| CN215606011U (en) * | 2021-06-24 | 2022-01-25 | 上海暖阳医疗器械有限公司 | Conveying mechanism for fixing aneurysm plugging device by using elastic body |
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