CN111887935B - Vascular dredging and cleaning device - Google Patents
Vascular dredging and cleaning device Download PDFInfo
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- CN111887935B CN111887935B CN202010743507.1A CN202010743507A CN111887935B CN 111887935 B CN111887935 B CN 111887935B CN 202010743507 A CN202010743507 A CN 202010743507A CN 111887935 B CN111887935 B CN 111887935B
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- sacculus
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—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
-
- 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
-
- 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
- A61B2017/22065—Functions of balloons
-
- 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
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
-
- 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
- A61B2017/2215—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having an open distal end
Abstract
The invention discloses a vascular dredging and cleaning device, which comprises a balloon catheter, a balloon and a marking ring, wherein the balloon is wrapped at the distal end of the balloon catheter, the distal end and the proximal end of the balloon catheter are respectively and fixedly connected with the balloon catheter penetrating through the balloon, the marking ring is arranged at the distal end and the proximal end of the balloon catheter, a balloon expansion channel and a guide wire guide channel are arranged in the balloon catheter, a communication hole is arranged on the tube wall of the balloon catheter, the balloon is in an expanded state and has the whole shape of a truncated cone or a cone, the distal end of the balloon is a large-diameter end, the proximal end of the balloon is a small-diameter end, the balloon consists of a distal end surface, a proximal end surface, a conical side wall and unit thrombus taking protrusions, the distal end surface is in circular arc transitional connection with the conical side wall, the unit thrombus taking protrusions are distributed on the conical side wall of the balloon at intervals, and are provided with protruding cavities.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a vascular dredging and cleaning device.
Background
Thrombosis can occur in blood vessels due to a variety of factors, which in turn can lead to a range of symptoms and complications. The treatment of thrombus in blood vessels is commonly surgical treatment, the surgical treatment mostly adopts catheter thrombolysis, the catheter thrombolysis comprises the steps of cutting a blood vessel near a body part formed by thrombus of a patient, inserting a thrombolysis catheter and penetrating a clot part along the blood vessel, wherein a thrombolysis part for pulling thrombus is arranged on the thrombolysis catheter, a clot is carried out by pulling the thrombolysis device, the clot is cleaned after repeated for a plurality of times, and the thrombolysis catheter adopts a balloon as a relatively common design.
Through retrieval, CN2003201210610 discloses a venous thrombus taking tube, CN201320390510.5 discloses an intravascular thrombus taking device, CN2014202557918 discloses a thrombus taking balloon, CN201720528621.6 discloses a balloon thrombus taking device, CN201822036855.6 discloses a thrombus taking device, the balloons are arranged on a catheter, the shape of each balloon is spherical or elliptic, the outer wall of each balloon is attached to the wall of a blood vessel after the balloon is expanded, and thrombus is taken out of the blood vessel when the balloon is retracted.
The existing structure has the following defects: firstly, the balloon is arranged in an oval shape, and when the balloon is retracted, the friction generated by the balloon and the vessel wall is large, so that the damage to the vessel wall of a patient is large; the balloon is arranged in a sphere shape, the contact area between the balloon and the vessel wall is small, and partial crushed thrombus easily flows from the gap between the balloon and the vessel wall to the distal end of the vessel, so that the vessel is blocked again; secondly, the balloon is attached to the wall of the blood vessel, the outer wall of the balloon is smooth, and when thrombus on the wall of the blood vessel is hard and has strong viscosity, the thrombus which is possibly stuck on the wall of the blood vessel can not be cleaned after the balloon is retracted; when the thrombus is softer, the thrombus is easily separated into small thrombus or thrombus fragments in the process of thrombus removal, and the small thrombus or thrombus fragments easily flow to a distal blood vessel, so that secondary embolism is caused, and the dredging effect of the blood vessel is poor; thirdly, the balloon in the prior art has the condition that thrombus cannot be completely removed once, and multiple operations are needed, so that the operation time is prolonged, and the operation risk is increased.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides the vascular dredging and cleaning device which is novel in structure, good in thrombus cleaning effect and small in damage to the vascular wall.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a vascular dredging cleaning device, includes sacculus pipe, sacculus, mark ring, the distal end parcel of sacculus pipe has the sacculus, the distal end, the proximal end of sacculus respectively with pass the sacculus pipe fixed connection of sacculus, the sacculus has shrinkage state and inflation state, be equipped with the mark ring on the sacculus pipe at the distal end, the proximal end of sacculus pipe, be equipped with the sacculus inflation passageway that makes the sacculus inflation and the seal wire guide passageway that the seal wire passed through in the sacculus pipe, be provided with the intercommunicating pore on the pipe wall of sacculus pipe, the intercommunicating pore on the sacculus pipe wall of sacculus inflation passageway and sacculus are linked together, its characterized in that: the balloon is in the whole shape of a circular truncated cone or a cone under an expansion state, the far end of the balloon is a large-diameter end, the near end of the balloon is a small-diameter end, the balloon is composed of a far end face, a near end face, a conical side wall and a unit thrombus taking protrusion, the far end face is in circular arc transition connection with the conical side wall, the unit thrombus taking protrusions are distributed on the conical side wall of the balloon at intervals, the unit thrombus taking protrusions are in a contracted state and an expansion state, the unit thrombus taking protrusions are provided with protruding cavities, the protruding cavities are communicated with the balloon, the far end of the balloon is attached to the wall of a blood vessel by arranging the balloon into the circular truncated cone or the cone, the thrombus can be prevented from flowing to the far end of the blood vessel, friction of the balloon to the wall of the blood vessel can be greatly reduced, the thrombus taking protrusions are arranged on the balloon, and thrombus with strong viscosity and broken thrombus in the blood vessel can be attached to the thrombus taking protrusions, and the thrombus taking effect is good.
The unit thrombus taking protrusions are arranged along the circumferential array of the balloon to form the unit thrombus taking protrusion ring groups, the unit thrombus taking protrusion ring groups are arranged along the axial linear array of the balloon, the unit thrombus taking protrusions of the adjacent unit thrombus taking protrusion ring groups are staggered, and thrombus can be effectively prevented from reaching the far end of the balloon in the thrombus taking process through the staggered arrangement of the unit thrombus taking protrusions of the adjacent unit thrombus taking protrusion ring groups.
The unit thrombus taking convex ring group is arranged at the proximal end and the middle part of the balloon, at least three unit thrombus taking convex ring groups are arranged on the balloon, at least six unit thrombus taking convex rings are arranged on the unit thrombus taking convex ring groups, and the unit thrombus taking convex ring groups are arranged at the proximal end and the middle part of the balloon, so that thrombus is attached to the thrombus taking convex rings when the balloon catheter is retracted, thrombus flowing to the distal end of the balloon can be effectively reduced, and thus, fragmented thrombus is prevented from entering the distal end of a blood vessel, and a better thrombus taking effect is ensured.
The unit thrombus taking protrusion is hemispherical in shape in an expansion state, and adopts the hemispherical design, so that the attachment area of thrombus on the thrombus taking protrusion is increased in the thrombus taking process, the thrombus with strong viscosity on the vessel wall can be scraped off and the vessel wall can not be damaged, and meanwhile, the deformation of the thrombus taking protrusion under the action of resistance force can be effectively prevented when the balloon catheter is retracted, so that part of thrombus attached to the thrombus taking protrusion flows to the far end of the vessel.
According to the invention, the thrombus collecting disc is arranged at the proximal end of the balloon on the balloon catheter, the thrombus collecting disc is in a contracted and expanded state, the whole shape of the thrombus collecting disc is umbrella-shaped with an opening facing the proximal end of the balloon catheter in the expanded state, the outer diameter of the thrombus collecting disc is smaller than that of the large-diameter end of the balloon, the thrombus collecting disc consists of linear unit thrombus taking cilia, the unit thrombus taking cilia are arranged along the circumferential array of the balloon catheter by taking the axial lead of the balloon catheter as the center, the inner ends of the unit thrombus taking cilia are fixedly connected with the balloon catheter, the outer ends of the unit thrombus taking cilia are free ends, and part of thrombus can be collected through the thrombus collecting disc at the proximal end of the balloon when the balloon catheter is retracted, the thrombus collecting disc is arranged into the umbrella-shape with the opening facing the proximal end of the balloon catheter, the contact area with thrombus is increased, the thrombus collecting rate is high, and the thrombus is not easy to fall off in the retracting process.
The unit thrombus taking cilia comprises upper elastic cilia, lower elastic cilia and a bending part, wherein the inner end of the upper elastic cilia is fixedly connected with a balloon catheter, the outer end of the upper elastic cilia is connected with the lower elastic cilia in a bending way through the bending part, an included angle between the upper elastic cilia and the outer wall of the balloon catheter is 60-90 degrees, and an included angle between the lower elastic cilia and the outer wall of the balloon catheter is 0-45 degrees.
According to the invention, the balloon catheter is sleeved with the bolt taking support in a net shape, the distal end and the proximal end of the bolt taking support are respectively and fixedly connected with the balloon catheter, the bolt taking support has a contracted state and an expanded state, the whole shape of the bolt taking support in the expanded state is a truncated cone or cone matched with the balloon, and when the balloon catheter is retracted by arranging the bolt taking support, part of thrombus can be collected through the bolt taking support, so that more thrombus can be taken out further.
The beneficial effects of the invention are as follows: the balloon is arranged into the truncated cone or the cone, the distal end of the balloon is attached to the wall of the blood vessel, so that thrombus can be prevented from flowing to the distal end of the blood vessel, friction of the balloon to the wall of the blood vessel can be greatly reduced, the balloon is provided with the thrombus taking protrusion, thrombus with high viscosity on the wall of the blood vessel and broken thrombus in the blood vessel can be attached to the thrombus taking protrusion, and the thrombus taking effect is good; the thrombus collecting disc is arranged at the proximal end of the balloon, so that partial thrombus can be collected through the thrombus collecting disc when the balloon catheter is retracted, the thrombus collecting disc is arranged in an umbrella shape with an opening facing the proximal end of the balloon catheter, the contact area with the thrombus is increased, the thrombus collecting rate is high, and the thrombus is not easy to fall off in the retracting process; when the balloon catheter is retracted by arranging the thrombus taking support, part of thrombus can be collected through the thrombus taking support, more thrombus can be further ensured to be taken out, the thrombus removing effect is ensured, the operation time is saved, and the injury to a patient is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the balloon and thrombolytic stent of the present invention in its inflated state.
Fig. 2 is a side view of the balloon and thrombolytic stent of the present invention in an expanded configuration. .
FIG. 3 is a schematic view of the assembled whole structure of the balloon and the thrombolytic stent of the present invention in a contracted state.
Reference numerals: balloon catheter-1, marking ring-2, bracket fixing ring-3, thrombus taking bracket-4, balloon-5, distal end face-501, proximal end face-502, conical side wall-503, thrombus taking cilia-6, upper elastic cilia-601, lower elastic cilia-602, bending part-603 and thrombus taking protrusion-7.
Detailed Description
The invention is described below with reference to the drawings and examples.
The utility model provides a vascular dredging and cleaning device, includes sacculus pipe 1, sacculus 5, mark ring 2, the distal end parcel of sacculus pipe 1 has sacculus 5, the distal end, the proximal end of sacculus 5 are respectively with the sacculus pipe fixed connection that passes the sacculus, sacculus 5 has shrinkage state and inflation state, be equipped with mark ring 2 on sacculus pipe 1 in the distal end, the proximal end of sacculus pipe, make things convenient for doctor to develop the location under the X ray, the connecting mode of mark ring and sacculus pipe is prior art, and not be repeated here, be equipped with the sacculus inflation passageway that makes the sacculus inflation and the seal wire guide passageway that the seal wire passed in the sacculus pipe 1, be provided with the intercommunicating pore on the pipe wall of sacculus pipe 1, the sacculus inflation passageway is linked together with the sacculus through the intercommunicating pore on the sacculus pipe wall, sacculus 5 is round platform body or cone under inflation state, the distal end of sacculus is big diameter end, the proximal end is a small diameter end, the balloon 5 is composed of a distal end face 501, a proximal end face 502, a conical side wall 503 and a unit thrombus taking protrusion 7, the distal end face 501 is in arc transition connection with the conical side wall 503, the proximal end face 502 is in arc transition connection with the conical side wall 503, the unit thrombus taking protrusions 7 are distributed on the conical side wall of the balloon at intervals, the unit thrombus taking protrusions 7 have a contracted state and an expanded state, the unit thrombus taking protrusions 7 are provided with protruding cavities, the protruding cavities are communicated with the balloon 5, the distal end of the balloon is attached to the vessel wall by arranging the balloon into a circular truncated cone or a cone, the thrombus flowing to the distal end of the vessel can be prevented, friction of the balloon to the vessel wall can be greatly reduced, the thrombus taking protrusions are arranged on the balloon, thrombus with high viscosity on the vessel wall and broken thrombus in the vessel can be attached to the thrombus taking protrusions, the thrombus taking effect is good. In this embodiment, the balloon is configured as a truncated cone, or alternatively, the balloon may be configured as a cone.
The unit thrombus taking protrusions 7 are arranged along the circumferential array of the balloon 5 to form a unit thrombus taking protrusion ring group, the unit thrombus taking protrusion ring group is arranged along the axial linear array of the balloon 5, the unit thrombus taking protrusions 7 of the adjacent unit thrombus taking protrusion ring groups are staggered, and thrombus can be effectively prevented from reaching the far end of the balloon in the thrombus taking process through the staggered arrangement of the unit thrombus taking protrusions of the adjacent unit thrombus taking protrusion ring group.
The unit thrombus taking bulge loop group is arranged at the proximal end and the middle part of the balloon 5, the balloon 5 is at least provided with three unit thrombus taking bulge loop groups, the unit thrombus taking bulge loop group is at least provided with six unit thrombus taking bulges 7, and the unit thrombus taking bulge loop group is arranged at the proximal end and the middle part of the balloon, so that thrombus is attached to the thrombus taking bulge when the balloon catheter 1 is retracted, thrombus flowing to the distal end of the balloon can be effectively reduced, and thus, fragmented thrombus is prevented from entering the distal end of a blood vessel, and a better thrombus taking effect is ensured.
The unit thrombus taking protrusion 7 is hemispherical in shape under the expansion state, and adopts hemispherical design, so that the attachment area of thrombus on the thrombus taking protrusion is increased in the thrombus taking process, thrombus with strong viscosity on the vessel wall can be scraped off and the vessel wall is not damaged, and meanwhile, the thrombus taking protrusion can be effectively prevented from deforming under the action of resistance when the balloon catheter is retracted, so that part of thrombus attached to the thrombus taking protrusion flows to the distal end of the vessel.
The balloon catheter is characterized in that a thrombus collecting disc is arranged at the proximal end of the balloon and is in a contracted state and an expanded state, the thrombus collecting disc is umbrella-shaped with an opening facing the proximal end of the balloon catheter in the whole shape under the expanded state, the outer diameter of the thrombus collecting disc is smaller than that of the large-diameter end of the balloon, the thrombus collecting disc is composed of linear unit thrombus taking cilia 6, the unit thrombus taking cilia 6 are arranged along the circumferential array of the balloon catheter 1 by taking the axial lead of the balloon catheter as the center, the inner end of the unit thrombus taking cilia 6 is fixedly connected with the balloon catheter 1, the outer end of the unit thrombus taking cilia 6 is a free end, part of thrombus can be collected through the thrombus collecting disc arranged at the proximal end of the balloon, the thrombus collecting disc is arranged into umbrella-shaped with the opening facing the proximal end of the balloon catheter, the contact area with the thrombus is enlarged, the thrombus collecting rate is high, and the thrombus is not easy to fall off in the withdrawing process.
The unit thrombus taking cilia 6 consists of an upper elastic cilia 601, a lower elastic cilia 602 and a bending part 603, wherein the inner end of the upper elastic cilia 601 is fixedly connected with the balloon catheter 1, the outer end of the upper elastic cilia is in bending connection with the lower elastic cilia 602 through the bending part 603, an included angle between the upper elastic cilia 601 and the outer wall of the balloon catheter 1 is 60-90 degrees, and an included angle between the lower elastic cilia 602 and the outer wall of the balloon catheter 1 is 0-45 degrees. The unit thrombus-removing cilia 6 in this embodiment employs a high-elasticity polymer material so that the unit thrombus-removing cilia 6 have a contracted state and an expanded state.
The balloon catheter 1 is externally sleeved with a bolt taking support 4 in a net shape on the balloon 5, the distal end and the proximal end of the bolt taking support 4 are respectively and fixedly connected with the balloon catheter 1, the bolt taking support 4 has a contracted state and an expanded state, the whole shape of the bolt taking support 4 in the expanded state is a round table body or a cone matched with the balloon, and when the balloon catheter is retracted by arranging the bolt taking support, part of thrombus can be collected through the bolt taking support, so that more thrombus can be further ensured to be taken out. The net structure design of the thrombus taking support has multiple modes, the structure adopted in the embodiment is that the thrombus taking support consists of a left unit spiral support and a right unit spiral support, the left unit spiral support and the right unit spiral support are arranged in a crossing mode to form a unit grid, the size of the unit grid gradually becomes smaller from the far end of the balloon to the near end of the balloon under the expansion state of the thrombus taking support, the thrombus taking protrusions of the unit are arranged in the unit grid, when the balloon is expanded through the design, the thrombus taking support is tightly matched with the outer wall of the balloon along with the expansion, part of thrombus is collected through the thrombus taking support, so that thrombus is effectively prevented from flowing to the far end of the balloon, and when a balloon catheter is retracted, the spiral design of the left spiral support and the right spiral support enables the contact area between the thrombus taking support and the thrombus to become larger, the thrombus can be blocked from flowing to the far end of the balloon, and more effective thrombus collection is realized.
In this embodiment, the balloon catheter is fixedly connected with a stent fixing ring 3 at the distal end and the proximal end of the balloon, two ends of the thrombus taking stent are fixed on the stent fixing ring, and the connection mode between the stent fixing ring and the balloon catheter is the prior art and will not be described herein. In this embodiment, the inner ends of the thrombus-removing cilia are also secured to the stent securing ring.
The saccule can be made of rubber, silica gel, latex, nylon and other materials; the thrombus taking support can be made of stainless steel, nickel-titanium alloy, cobalt-chromium alloy and other materials; the thrombus taking cilia can be made of stainless steel, nickel-titanium alloy, cobalt-chromium alloy and other materials, and the diameter of the cilia is between 0.01MM and 0.03 MM.
In this embodiment, as shown in fig. 3, the initial state of the balloon is that the balloon, the thrombus taking support and the thrombus taking cilia are in a contracted state, the sheath tube is sleeved outside the balloon catheter, the balloon is in a contracted state, the whole shape is long strip shape, the thrombus taking support is in a contracted state, and the unit meshes on the thrombus taking support are the same in size.
When the balloon catheter is used, firstly, the guide wire is penetrated in the guide wire guide channel of the balloon catheter, under the guide of the guide wire, the sheath tube carries the balloon catheter to reach the distal end of thrombus, the marking ring plays a role of marking, so that a doctor can observe the position of the balloon catheter, the guide wire and the sheath tube are retracted, the thrombus taking cilia are expanded and opened under the action of elastic force, liquid or gas is injected into the balloon expansion channel to expand the volume of the balloon until the balloon is attached to the vessel wall, the thrombus taking support is expanded along with the balloon, after the balloon is in an inflated state attached to the vessel wall, the thrombus taking protrusion and the thrombus taking support are in an expanded state at the moment, a doctor pulls the balloon catheter to retract the balloon catheter, the thrombus taking cilia firstly contacts with the distal end of thrombus, a part of thrombus is collected, the balloon catheter is continuously retracted, a part of thrombus is attached to the thrombus taking protrusion and the thrombus taking support, and the balloon carries the thrombus to move towards the proximal end of the vessel, and finally, the thrombus is taken out.
The beneficial effects of the invention are as follows: the balloon is arranged into the truncated cone or the cone, the distal end of the balloon is attached to the wall of the blood vessel, so that thrombus can be prevented from flowing to the distal end of the blood vessel, friction of the balloon to the wall of the blood vessel can be greatly reduced, the balloon is provided with the thrombus taking protrusion, thrombus with high viscosity on the wall of the blood vessel and broken thrombus in the blood vessel can be attached to the thrombus taking protrusion, and the thrombus taking effect is good; the thrombus collecting disc is arranged at the proximal end of the balloon, so that partial thrombus can be collected through the thrombus collecting disc when the balloon catheter is retracted, the thrombus collecting disc is arranged in an umbrella shape with an opening facing the proximal end of the balloon catheter, the contact area with the thrombus is increased, the thrombus collecting rate is high, and the thrombus is not easy to fall off in the retracting process; when the balloon catheter is retracted by arranging the thrombus taking support, part of thrombus can be collected through the thrombus taking support, more thrombus can be further ensured to be taken out, the thrombus removing effect is ensured, the operation time is saved, and the injury to a patient is reduced.
Claims (4)
1. The utility model provides a vascular dredging cleaning device, includes sacculus pipe, sacculus, mark ring, the distal end parcel of sacculus pipe has the sacculus, the distal end, the proximal end of sacculus are respectively with the sacculus pipe fixed connection who passes the sacculus, be equipped with the mark ring on the sacculus pipe at the distal end of sacculus, proximal end, be equipped with sacculus inflation passageway and seal wire guide passageway in the sacculus pipe, be equipped with the intercommunicating pore on the pipe wall of sacculus pipe, the communication pore on the sacculus inflation passageway pipe wall is linked together with the sacculus through the sacculus, its characterized in that: the balloon is in an expanded state and is in a round table shape or a cone shape, the far end of the balloon is a large-diameter end, the near end of the balloon is a small-diameter end, the balloon consists of a far end face, a near end face, a conical side wall and a unit bolt taking protrusion, the far end face is in circular arc transition connection with the conical side wall, the near end face is in circular arc transition connection with the conical side wall, the unit bolt taking protrusions are distributed on the conical side wall of the balloon at intervals and are arranged at the near end and the middle part of the balloon, the unit bolt taking protrusions are provided with protrusion cavities, and the protrusion cavities are communicated with the balloon;
the thrombus collecting disc is arranged at the proximal end of the balloon catheter, the whole shape of the thrombus collecting disc is umbrella-shaped with an opening facing the proximal end of the balloon catheter in an expanded state, the outer diameter of the thrombus collecting disc is smaller than that of the large diameter end of the balloon, the thrombus collecting disc consists of linear unit thrombus taking cilia, the unit thrombus taking cilia are arranged along the circumferential array of the balloon catheter by taking the axial lead of the balloon catheter as the center, the inner end of the unit thrombus taking cilia is fixedly connected with the balloon catheter, and the outer end of the unit thrombus taking cilia is a free end;
the balloon catheter is sleeved with a bolt taking support in a net shape, the distal end and the proximal end of the bolt taking support are respectively and fixedly connected with the balloon catheter, and the whole shape of the bolt taking support in an expanded state is a truncated cone or a cone matched with the balloon.
2. A vascular dredging cleaning device according to claim 1, wherein: the unit thrombus taking protrusions are arranged along the circumferential array of the balloon to form a unit thrombus taking protrusion ring group, the unit thrombus taking protrusion ring group is arranged along the axial linear array of the balloon, and unit thrombus taking protrusions of adjacent unit thrombus taking protrusion ring groups are staggered.
3. A vascular dredging cleaning device according to claim 1 or 2, characterized in that: the unit thrombus taking-out protrusion is hemispherical in shape in an expanded state.
4. A vascular dredging cleaning device according to claim 3, wherein: the unit thrombus taking cilia consists of upper elastic cilia, lower elastic cilia and a bending part, wherein the inner end of the upper elastic cilia is fixedly connected with the balloon catheter, the outer end of the upper elastic cilia is connected with the lower elastic cilia in a bending way through the bending part, the included angle between the upper elastic cilia and the outer wall of the balloon catheter is 60-90 degrees, and the included angle between the lower elastic cilia and the outer wall of the balloon catheter is 0-45 degrees.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743507.1A CN111887935B (en) | 2020-07-29 | 2020-07-29 | Vascular dredging and cleaning device |
| PCT/CN2021/104193 WO2022022223A1 (en) | 2020-07-29 | 2021-07-02 | Blood vessel dredging and cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743507.1A CN111887935B (en) | 2020-07-29 | 2020-07-29 | Vascular dredging and cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111887935A CN111887935A (en) | 2020-11-06 |
| CN111887935B true CN111887935B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010743507.1A Active CN111887935B (en) | 2020-07-29 | 2020-07-29 | Vascular dredging and cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111887935B (en) * | 2020-07-29 | 2023-10-20 | 山东维心医疗器械有限公司 | Vascular dredging and cleaning device |
| WO2023087455A1 (en) * | 2021-11-17 | 2023-05-25 | 上海腾复医疗科技有限公司 | Vascular recanalization device |
| CN114948089A (en) * | 2022-05-25 | 2022-08-30 | 北京先瑞达医疗科技有限公司 | Separable bolt taking support device |
| CN116269651B (en) * | 2022-12-06 | 2023-10-10 | 杭州亿科医疗科技有限公司 | Prevent that thrombus extraction net from releasing in advance's thrombus extraction device |
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| WO2022022223A1 (en) | 2022-02-03 |
| CN111887935A (en) | 2020-11-06 |
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