CN112043346A - Intravascular thrombus removal balloon catheter - Google Patents
Intravascular thrombus removal balloon catheter Download PDFInfo
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- CN112043346A CN112043346A CN201910490051.XA CN201910490051A CN112043346A CN 112043346 A CN112043346 A CN 112043346A CN 201910490051 A CN201910490051 A CN 201910490051A CN 112043346 A CN112043346 A CN 112043346A
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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
- A61B17/22—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
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
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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
- A61B17/22—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
- A61B2017/22038—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 a guide wire
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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
- A61B17/22—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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
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Abstract
The invention discloses an intravascular thrombus taking balloon catheter which comprises a balloon catheter body and a thrombus taking sheath, wherein the balloon catheter body consists of a catheter body, a balloon and a Y-shaped catheter seat, the distal end of the catheter body is provided with a head, a thread guide cavity and a balloon cavity are arranged inside the catheter body, a balloon hole is formed outside the balloon cavity, a balloon channel and a thread guide channel are formed in the Y-shaped catheter seat, and a silica gel ring I and a cock I are arranged outside the thread guide channel; the far end of the embolectomy sheath is provided with a string bag, the near end of the embolectomy sheath is provided with a sheath tube seat, the string bag is fixed at the front end of the embolectomy sheath in a welding or bonding mode, the front end of the string bag is provided with a developing ring, and the middle of the developing ring is provided with a hole. The balloon catheter of the invention increases the rigidity of the latex balloon, can keep a certain shape in a blood vessel after being inflated, avoids the balloon from slipping, and is compatible with a guide wire, so that the balloon catheter can reach farther lesion positions under the guide of the guide wire.
Description
Technical Field
The invention relates to a catheter, in particular to an intravascular thrombus removal balloon catheter.
Background
The existing Fogarty thrombus removal balloon catheter is a balloon catheter with a closed front end, the balloon is made of latex materials, and two ends of the balloon can be developed. After the saccule enters a target blood vessel, the saccule is filled, thrombus in the occlusion blood vessel is crushed, and small blood clots formed after crushing flow to the far-end blood vessel along with blood circulation and are slowly absorbed. Larger emboli or old flocculent thrombus can be dragged out of the body following the balloon. The cutting balloon catheter is a balloon catheter which is specially used for cutting plaque tissues deposited on a blood vessel wall and is provided with a blade on the outer wall of a balloon, and benefits mainly by the mode of pressing plaque and slightly expanding the blood vessel wall.
The existing Fogarty embolectomy balloon catheter is a single-lumen tube, the pushing force is poor, and the extremely thin blood vessel with a complicated bifurcation at the distal end is difficult to reach under the condition of lacking the guiding of a guide wire. Small blood clots crushed by the balloon or small emboli that are not captured may occlude some distal vessels, causing some complications and even sudden death. And because the latex saccule is softer, the saccule is easy to slip or break in calcified pathological blood vessels, and the thrombus removal effect is lost.
The sacculus material of cutting sacculus pipe is nylon, and there is cutting blade on the sacculus surface, and it can expand into rated external diameter under rated pressure, and when sacculus diameter exceeded normal blood vessel internal diameter 1.1 times, the blade on sacculus surface very easily caused cutting nature damage to the blood vessel of non-pathological change position, made the vascular wall impaired. When the diameter of the balloon is smaller than the inner diameter of the blood vessel, the embolus is easy to slide out from the gap between the balloon and the blood vessel, so that the embolus removal fails or the operation time is prolonged.
Accordingly, one skilled in the art provides an endovascular embolectomy balloon catheter to address the problems set forth in the background above.
Disclosure of Invention
The invention aims to provide an intravascular thrombus removal balloon catheter, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an intravascular thrombus taking balloon catheter comprises a balloon catheter body and a thrombus taking sheath, wherein the balloon catheter body consists of a catheter body, a balloon and a Y-shaped catheter seat, a net bag is arranged at the far end of the thrombus taking sheath, and a sheath seat is arranged at the near end of the thrombus taking sheath;
the far end of the tube body is provided with a head, a wire guide cavity and a balloon cavity are arranged in the tube body, the wire guide cavity and the tube body are coaxial, the cross section of the balloon cavity can be in an oval shape, a rectangular shape or other shapes, a balloon hole is formed outside the balloon cavity, the wire guide cavity penetrates through the head, and the left end and the right end of the balloon are respectively provided with a far end developing mark and a near end developing mark;
a balloon channel and a wire guide channel are arranged in the Y-shaped catheter seat, the wire guide channel is positioned below the balloon channel, and a silica gel ring I and a cock I are arranged outside the wire guide channel;
a plug sheath channel is arranged in the sheath tube seat, a plug cock II is sleeved on the outer side of the plug sheath channel, a silica gel ring II is arranged at the front end of the plug cock II, and the silica gel ring II is sleeved on the plug sheath channel;
the net bag is fixed at the front end of the bolt taking sheath in a welding or bonding mode, the front end of the net bag is provided with a developing ring, and the middle of the developing ring is provided with a hole;
the outer surfaces of the tube body, the balloon and the embolectomy sheath are coated with hydrophilic lubricating coatings, and the inner surfaces of the guide wire cavity and the embolectomy sheath are coated with silicone oil lubricating coatings.
As a further aspect of the present invention, the material of the head end is not limited to polyurethane (PU, TPU) containing barium sulfate or bismuth subcarbonate, polyether amide elastomer (Pebax) containing barium sulfate or bismuth subcarbonate, Low Density Polyethylene (LDPE) containing barium sulfate or bismuth subcarbonate, polyvinyl chloride (PVC) containing barium sulfate or bismuth subcarbonate, nylon (PA) containing barium sulfate or bismuth subcarbonate, or other thermoplastic elastomers.
As a still further aspect of the present invention, the material of the pipe body is not limited to polyether amide elastomer (Pebax), polyurethane (PU, TPU), Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), nylon (PA), metal wire braided reinforced multilayer composite pipe or hypotube, PI pipe, and the material of the inner and outer layers of the metal wire braided reinforced composite pipe is not limited to polyether amide elastomer (Pebax), nylon (PA), Polytetrafluoroethylene (PTFE), or other high rigidity thermoplastic elastomer.
As still further aspects of the present invention, the material of the distal end developing marker and the proximal end developing marker is not limited to a binder containing a developer, a coating material containing a developer, or stainless steel, pure gold, platinum-iridium alloy, nickel-titanium alloy, and stainless steel processed by gold plating, or other metal and alloy materials.
As a further scheme of the present invention, the material of the balloon is latex, or modified polyurethane (TPU), high elasticity polyolefin (TPE) or other thermoplastic plastics, and the compliance of the balloon can reach 6 to 10.
As a still further aspect of the present invention, the materials of the Y-shaped catheter and sheath holders are not limited to Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Polyoxymethylene (POM), polypropylene (PP) and their alloy plastics.
As a still further aspect of the present invention, the material of the embolectomy sheath is not limited to FEP, PTFE and other fluoroplastics, Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), nylon (PA), wire-braided reinforced multilayer composite tube or hypotube, PI tube; the inner and outer layer materials of the composite tube reinforced by the metal wire weaving are not limited to polyether amide elastomer (Pebax), nylon (PA), Polytetrafluoroethylene (PTFE) or other high-rigidity thermoplastic elastomers, and the coating of the embolectomy sheath can be an ultrathin PTFE outer layer.
As a further aspect of the present invention, the material of the string bag is not limited to nylon thread, polyester thread, nylon thread or other high molecular polymer wire, or nickel-titanium alloy string with memory function and hydrophilic coating, and the string bag is retracted into the embolectomy sheath when not in use.
As still further aspect of the present invention, the material of the developing ring is not limited to stainless steel, pure gold, platinum-iridium alloy, nickel-titanium alloy, and stainless steel processed by gold plating or other metal and alloy materials.
As a further scheme of the present invention, the material of the silica gel ring i and the silica gel ring ii may be silica gel or rubber.
Compared with the prior art, the invention has the beneficial effects that:
1. the balloon catheter of the invention increases the rigidity of the latex balloon, can keep a certain shape in a blood vessel after being inflated, avoids the balloon from slipping, and is compatible with a guide wire, so that the balloon catheter can reach farther lesion positions under the guide of the guide wire.
2. The diameter of the balloon can be changed under the condition that the balloon catheter is not replaced, so that the outer diameter of the balloon can adapt to the inner diameters of different blood vessels, captured emboli can not slip from a gap between the balloon and the blood vessel, and additional cutting and high-friction damage to a normal blood vessel wall can not be caused.
3. When the balloon catheter is used, the clearance between the balloon and the blood vessel becomes smaller, so that thrombus can be prevented from slipping from the thrombus extractor, the thrombus can be prevented from falling off and spreading to a distance, the thrombus removal rate is obviously improved, the thrombus extraction frequency is reduced, the time interval from disease onset to blood vessel recanalization is shortened, precious rescue time is won for a patient, and the balloon catheter plays a vital role in saving the life of the patient; the rigidity of sacculus can be strengthened to the string bag, makes the sacculus even do not take place the slippage in calcification constrictive blood vessel department or complicated branch blood vessel department, and string bag surface unevenness is favorable to the embolus deposit on the string bag, is taken out extracorporeally along with the sacculus.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional view of a tubular body according to the present invention.
Fig. 3 is an enlarged view of the string bag of the present invention.
Fig. 4 is a schematic structural diagram of coronary vessels according to the present invention.
Fig. 5 is a schematic structural view of the balloon in coronary vessels according to the present invention.
Fig. 6 is a schematic structural view of the balloon of the present invention positioned in an arterial vessel.
In the figure: 1-a pipe body; 11-a head; 12-the balloon cavity; 13-balloon orifice; 14-a guidewire lumen; 2-a balloon; 21-distal visualization marker; 22-proximal visualization marker; 3-Y type conduit seat; 31-balloon channel; 32-a cock I; 33-silica gel ring one; 34-a guide wire channel; 4, taking the thrombus sheath; 5-a net bag; 51-a developing ring; 6-sheath base; 61-silica gel ring two; 62-a embolic sheath channel; 63-cock two.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1 to 3, in the embodiment of the invention, an intravascular thrombus taking balloon catheter comprises a balloon catheter body and a thrombus taking sheath 4, wherein the balloon catheter body comprises a catheter body 1, a super-compliance low-pressure filling balloon 2 and a Y-shaped catheter seat 3 with adjustable sealing degree, a net bag 5 is arranged at the far end of the thrombus taking sheath 4, and a sheath catheter seat 6 with adjustable sealing degree is arranged at the near end of the thrombus taking sheath 4;
the far end of the tube body 1 is provided with a flexible and developable head 11, a guidewire cavity 14 and a balloon cavity 12 are arranged inside the tube body 1, the guidewire cavity 14 is coaxial with the tube body 1, the cross section of the balloon cavity 12 can be in an oval, rectangular or other shape, a balloon hole 13 is formed outside the balloon cavity 12 and used for realizing the communication between the balloon 2 and the balloon cavity 12, the guidewire cavity 14 penetrates through the head 11, and the left end and the right end of the super-compliance low-pressure filling balloon 2 are respectively provided with a far end developing mark 21 and a near end developing mark 22;
a balloon channel 31 and a guide wire channel 34 are arranged in the Y-shaped catheter seat 3 with adjustable sealing degree, the guide wire channel 34 is positioned below the balloon channel 31, a silica gel ring I33 and a cock I32 are arranged outside the guide wire channel 34, the tightness of the silica gel ring I33 can be controlled by rotating the cock I32, the minimum inner diameter of the guide wire channel 34 is adjusted, and the guide wire and the balloon catheter are controlled to be in relative positions or the whole guide wire channel 34 is sealed;
the far end of the thrombus taking sheath 4 is provided with a net bag 5, the near end of the thrombus taking sheath 4 is provided with a sheath tube seat 6 capable of adjusting the sealing degree, a thrombus sheath channel 62 is arranged in the sheath tube seat 6, the outer side of the thrombus sheath channel 62 is sleeved with a second cock 63, the front end of the second cock 63 is provided with a second silica gel ring 61, and the second silica gel ring 61 is sleeved on the thrombus sheath channel 62;
the net bag 5 is fixed at the front end of the embolectomy sheath 4 in a welding or bonding mode, the front end of the net bag 5 is provided with a developing ring 51, and the middle of the developing ring 51 is provided with a hole for a guide wire to pass through;
the outer surfaces of the tube body 1, the balloon 2 and the embolectomy sheath 4 are coated with hydrophilic lubricating coatings, and the inner surfaces of the guide wire cavity 14 and the embolectomy sheath 4 are coated with silicone oil lubricating coatings.
The material of the head end 11 is not limited to polyurethane (PU, TPU) containing barium sulfate or bismuth subcarbonate, polyether amide elastomer (Pebax) containing barium sulfate or bismuth subcarbonate, Low Density Polyethylene (LDPE) containing barium sulfate or bismuth subcarbonate, polyvinyl chloride (PVC) containing barium sulfate or bismuth subcarbonate, nylon (PA) containing barium sulfate or bismuth subcarbonate, or other thermoplastic elastomers.
The material of the pipe body 1 is not limited to polyether amide elastomer (Pebax), polyurethane (PU, TPU), Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), nylon (PA), metal wire braided reinforced multilayer composite pipe or hypotube, PI pipe, and the material of the inner and outer layers of the metal wire braided reinforced composite pipe is not limited to polyether amide elastomer (Pebax), nylon (PA), Polytetrafluoroethylene (PTFE) or other high-rigidity thermoplastic elastomers.
The material of the distal end development marker 21 and the proximal end development marker 22 is not limited to a binder containing a developer, a coating material containing a developer, or stainless steel, pure gold, platinum-iridium alloy, nickel-titanium alloy, and stainless steel processed by gold plating, or other metal and alloy materials.
The material of the saccule 2 is latex, and can also be modified polyurethane (TPU), high-elasticity polyolefin (TPE) or other thermoplastic plastics, and the compliance of the saccule 2 can reach 6-10.
The materials of the Y-shaped catheter hub 3 and the sheath hub 6 are not limited to Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Polyoxymethylene (POM), polypropylene (PP), and alloy plastics thereof.
The material of the embolectomy sheath 4 is not limited to FEP, PTFE and other fluoroplastics, Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), nylon (PA), metal wire braided reinforced multilayer composite tube or hypotube, PI tube; the inner and outer layer materials of the composite tube reinforced by the metal wire weaving are not limited to polyether amide elastomer (Pebax), nylon (PA), Polytetrafluoroethylene (PTFE) or other high-rigidity thermoplastic elastomers, and the coating of the embolectomy sheath 4 can be an ultrathin PTFE outer layer.
The material of the net bag 5 is not limited to nylon thread, terylene thread, nylon thread or other high molecular polymer wire, or nickel-titanium alloy net thread with memory function and hydrophilic coating, and the net bag 5 is contracted in the embolectomy sheath 4 when not in use.
The material of the developing ring 51 is not limited to stainless steel, pure gold, platinum-iridium alloy, nickel-titanium alloy, and stainless steel processed by gold plating or other metal and alloy materials.
The first silica gel ring 33 and the second silica gel ring 61 can be made of silica gel or rubber.
Referring to fig. 4-6, taking the thrombus removal of coronary vessels as an example, specifically describing the use of the thrombus removal balloon catheter of the present invention, the inner diameter dimensions of coronary vessels and arterial vessels are shown in fig. 4 below, and it can be clearly seen that the coronary vessels are thinner than the arterial vessels.
When coronary artery vessel thrombus taking is needed, after a guide wire enters a target coronary artery vessel through an artery vessel, a thrombus taking sheath 4 is firstly sent to a blocked part of the coronary artery vessel along the guide wire, under the guidance of an X-ray device, a developing ring 51 at the head end of a net bag 5 is ensured to pass through the blocked part of the vessel, then a balloon catheter is also sent into the coronary artery vessel along the guide wire, at the moment, the balloon catheter is positioned in the thrombus taking sheath 4, the net bag 5 contracted in the thrombus taking sheath 4 is jacked open to the vessel, the balloon 2 is filled through a balloon channel 31 in a Y-shaped catheter seat 3, and at the moment, the states of the balloon 2, the thrombus taking sheath 4 and the net bag 5 are shown in figure 5;
a second cock 63 of the sheath tube seat 6 and a first cock 32 of the Y-shaped catheter seat 3 are well controlled, so that air cannot enter the thrombus taking sheath 4 and the guide wire cavity 14 of the balloon catheter, and the thrombus taking sheath 4 and the balloon catheter are dragged to be withdrawn out of the body along the guide wire;
when the proximal development mark 22 of the balloon 2 is observed to be positioned in the arterial vessel under the guidance of the X-ray equipment, the second cock 63 of the sheath base 6 is slightly loosened, the sheath base 6 is pulled at the same time, the relative distance between the development ring 51 and the head end of the embolectomy sheath 4 is reduced, the balloon 2 is deformed at the moment, the outer diameter of the balloon is increased, the outer diameter of the balloon is observed under the guidance of the X-ray equipment, the balloon 2 is properly filled or released, the gap between the outer diameter of the balloon 2 and the arterial vessel wall is minimized, the embolus is ensured not to slip from the gap, and the outer diameter of the balloon 2 can be observed to be increased when the balloon 2, the embolectomy sheath 4 and the net bag 5 are in the state as shown in FIG;
the relative position of the embolectomy sheath 4 and the net bag 5 and the filling magnitude of the sacculus 2 can be continuously adjusted in the process of withdrawing the sacculus catheter and the embolectomy sheath 4, so that the outer diameter of the sacculus 2 is always matched with the inner diameter of a blood vessel, and the embolus can be prevented from being separated in the process of withdrawing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An intravascular thrombus taking balloon catheter comprises a balloon catheter body and a thrombus taking sheath (4), and is characterized in that the balloon catheter body consists of a catheter body (1), a balloon (2) and a Y-shaped catheter seat (3), a net bag (5) is arranged at the far end of the thrombus taking sheath (4), and a sheath tube seat (6) is arranged at the near end of the thrombus taking sheath (4);
the far end of the tube body (1) is provided with a head (11), a guide wire cavity (14) and a balloon cavity (12) are arranged inside the tube body (1), the guide wire cavity (14) is coaxial with the tube body (1), the cross section of the balloon cavity (12) can be in an oval, rectangular or other shape, a balloon hole (13) is formed outside the balloon cavity (12), the guide wire cavity (14) penetrates through the head (11), and the left end and the right end of the balloon (2) are respectively provided with a far-end development mark (21) and a near-end development mark (22);
a balloon channel (31) and a guide wire channel (34) are arranged in the Y-shaped catheter seat (3), the guide wire channel (34) is positioned below the balloon channel (31), and a silica gel ring I (33) and a cock I (32) are arranged outside the guide wire channel (34);
a plug sheath channel (62) is arranged in the sheath tube seat (6), a second cock (63) is sleeved outside the plug sheath channel (62), a second silica gel ring (61) is arranged at the front end of the second cock (63), and the second silica gel ring (61) is sleeved on the plug sheath channel (62);
the net bag (5) is fixed at the front end of the embolectomy sheath (4) in a welding or bonding mode, a developing ring (51) is arranged at the front end of the net bag (5), and a hole is formed in the middle of the developing ring (51);
the outer surfaces of the tube body (1), the balloon (2) and the embolectomy sheath (4) are coated with hydrophilic lubricating coatings, and the inner surfaces of the guide wire cavity (14) and the embolectomy sheath (4) are coated with silicone oil lubricating coatings.
2. An endovascular embolectomy balloon catheter as defined in claim 1, wherein the material of the tip (11) is not limited to polyurethane containing barium sulfate or bismuth subcarbonate (PU, TPU), polyether amide elastomer containing barium sulfate or bismuth subcarbonate (Pebax), low density polyethylene containing barium sulfate or bismuth subcarbonate (LDPE), polyvinyl chloride containing barium sulfate or bismuth subcarbonate (PVC), nylon containing barium sulfate or bismuth subcarbonate (PA), or other thermoplastic elastomers.
3. An endovascular embolectomy balloon catheter as defined in claim 1, wherein the material of the catheter body (1) is not limited to polyetheramide elastomer (Pebax), polyurethane (PU, TPU), Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), nylon (PA), wire-braided reinforced multilayer composite tube or hypotube, PI tube, and the material of the inner and outer layers of the wire-braided reinforced composite tube is not limited to polyetheramide elastomer (Pebax), nylon (PA), Polytetrafluoroethylene (PTFE) or other high rigidity thermoplastic elastomer.
4. An endovascular embolectomy balloon catheter as defined in claim 1, wherein the material of the distal (21) and proximal (22) visualization markers is not limited to contrast-containing adhesives, contrast-containing coating materials or stainless steel, pure gold, platinum-iridium alloy, nickel-titanium alloy, and gold-plated stainless steel or other metals and alloy materials.
5. The intravascular embolectomy balloon catheter as claimed in claim 1, wherein the material of the balloon (2) is latex, or modified polyurethane (TPU), high-elasticity polyolefin (TPE) or other thermoplastic plastics, and the compliance of the balloon (2) can reach 6-10.
6. An endovascular embolectomy balloon catheter as defined in claim 1, wherein the materials of the Y-shaped catheter hub (3) and the sheath hub (6) are not limited to Polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), Polyoxymethylene (POM), polypropylene (PP) and their alloyed plastics.
7. An endovascular embolectomy balloon catheter as defined in claim 1, wherein the material of the embolectomy sheath (4) is not limited to fluoroplastic, Low Density Polyethylene (LDPE), polyvinyl chloride (PVC), nylon (PA), wire braid reinforced multilayer composite or hypotube, PI tube; the inner layer and the outer layer of the composite pipe reinforced by the metal wire weaving are not limited to polyether amide elastomer (Pebax), nylon (PA), Polytetrafluoroethylene (PTFE) or other high-rigidity thermoplastic elastomers, and the coating of the embolectomy sheath (4) can be an ultrathin PTFE outer layer.
8. The intravascular embolectomy balloon catheter as claimed in claim 1, wherein the material of the net bag (5) is not limited to nylon thread, terylene thread, nylon thread or other high polymer wires, or nickel-titanium alloy wires with memory function and hydrophilic coating, and the net bag (5) is shrunk in the embolectomy sheath (4) when not in use.
9. The endovascular embolectomy balloon catheter as defined in claim 1, wherein the material of the visualization ring (51) is not limited to stainless steel, pure gold, platinum-iridium alloy, nickel-titanium alloy, and stainless steel processed by gold plating or other metal and alloy materials.
10. The intravascular embolectomy balloon catheter as claimed in claim 1, wherein the silicone rings I (33) and II (61) are made of silicone or rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490051.XA CN112043346A (en) | 2019-06-06 | 2019-06-06 | Intravascular thrombus removal balloon catheter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490051.XA CN112043346A (en) | 2019-06-06 | 2019-06-06 | Intravascular thrombus removal balloon catheter |
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| CN112043346A true CN112043346A (en) | 2020-12-08 |
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| CN201910490051.XA Pending CN112043346A (en) | 2019-06-06 | 2019-06-06 | Intravascular thrombus removal balloon catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115969467A (en) * | 2022-09-30 | 2023-04-18 | 北京管桥医疗科技有限公司 | Pulmonary artery thrombus removal system and use method |
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- 2019-06-06 CN CN201910490051.XA patent/CN112043346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115969467A (en) * | 2022-09-30 | 2023-04-18 | 北京管桥医疗科技有限公司 | Pulmonary artery thrombus removal system and use method |
| CN115969467B (en) * | 2022-09-30 | 2024-01-19 | 北京管桥医疗科技有限公司 | Pulmonary artery thrombus removal system and application method |
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