CN111887935A - Blood vessel dredging and cleaning device - Google Patents
Blood vessel dredging and cleaning device Download PDFInfo
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- CN111887935A CN111887935A CN202010743507.1A CN202010743507A CN111887935A CN 111887935 A CN111887935 A CN 111887935A CN 202010743507 A CN202010743507 A CN 202010743507A CN 111887935 A CN111887935 A CN 111887935A
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- sacculus
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 36
- 238000004140 cleaning Methods 0.000 title claims abstract description 14
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 181
- 210000004081 cilia Anatomy 0.000 claims description 42
- 238000013156 embolectomy Methods 0.000 claims description 25
- 230000002792 vascular Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
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- 210000004027 cell Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 6
- 230000007704 transition Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 208000005189 Embolism Diseases 0.000 description 25
- 210000005077 saccule Anatomy 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 230000008602 contraction Effects 0.000 description 9
- 238000013151 thrombectomy Methods 0.000 description 9
- 239000012634 fragment Substances 0.000 description 5
- 208000032825 Ring chromosome 2 syndrome Diseases 0.000 description 3
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- 208000014674 injury Diseases 0.000 description 3
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical class [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 2
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- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; 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
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a blood vessel dredging and cleaning device, which comprises a balloon catheter, a balloon and a marking ring, wherein the distal end of the balloon catheter is wrapped by the balloon, the distal end and the proximal end of the balloon are respectively and fixedly connected with the balloon catheter penetrating through the balloon, the distal end and the proximal end of the balloon are provided with the marking ring, the balloon catheter is internally provided with a balloon expansion channel and a guide wire guide channel, the wall of the balloon catheter is provided with a communication hole, the balloon is integrally shaped like a circular truncated cone or a cone in an expansion state, 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 bulges, the distal end surface is in arc transition connection with the conical side wall, the proximal end surface is in arc transition connection with the conical side wall, the conical side wall of the balloon is provided with the unit, Good thrombus clearing effect, small damage to vessel walls and the like.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a blood vessel dredging and cleaning device.
Background
Thrombosis is caused in blood vessels by various factors, which in turn causes a series of symptoms and complications. The common operation treatment to the treatment of thrombus in the blood vessel, the operation treatment adopts the pipe to get the embolism mostly, the step of pipe get the embolism is for cutting open the blood vessel near patient's thrombosis's body position, insert and get the embolism pipe and pass the clot position along the blood vessel, get and be provided with on the embolism pipe and be used for dragging the portion of getting the embolism of drawing the thrombus, through taking out the device of getting the embolism and taking out the clot, repeat many times after with confirming the clot and be cleared up, it is comparatively common a class of design to use the sacculus as the portion of getting the embolism in getting the embolism pipe.
By retrieval, CN2003201210610 discloses a vein embolectomy tube, CN201320390510.5 discloses an intravascular embolectomy device, CN2014202557918 discloses an embolectomy balloon, CN201720528621.6 discloses a balloon embolectomy device, and CN201822036855.6 discloses an embolectomy device, which are all provided with balloons on a catheter, wherein the balloons are spherical or elliptical, the outer wall of the balloon is attached to the wall of the blood vessel after the balloon is expanded, and the thrombus is taken out of the blood vessel when the balloon is withdrawn.
The existing structure has the following defects: firstly, the saccule is set to be oval, when the saccule is withdrawn, the friction between the saccule and the vascular wall is large, and the injury to the vascular wall of a patient is large; the balloon is arranged in a spherical shape, the contact area between the balloon and the vessel wall is small, and part of broken thrombus easily flows to the far end of the vessel from a gap between the balloon and the vessel wall to cause vessel blockage again; secondly, the balloon is attached to the vessel wall, the outer wall of the balloon is smooth, and when thrombus on the vessel wall is hard and has strong viscosity, part of thrombus stuck on the vessel wall can not be cleaned up after the balloon is withdrawn; when the thrombus is soft, the thrombus is easily divided into small thrombus or thrombus fragments in the thrombus taking process, the small thrombus or thrombus fragments easily flow to a far-end blood vessel to cause secondary embolism, and the blood vessel dredging effect is poor; thirdly, the saccule in the prior art has the condition that the thrombus cannot be completely removed once, and needs to be operated for many times, 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 provide a blood vessel dredging and cleaning device which is novel in structure, good in thrombus cleaning effect and small in damage to a blood vessel wall.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a blood vessel mediation cleaning device, includes sacculus pipe, sacculus, mark ring, the distal end parcel of sacculus pipe has the sacculus, the distal end of sacculus, near-end respectively with the sacculus pipe fixed connection who passes the sacculus, the sacculus has contraction state and inflation state, be equipped with the mark ring at the distal end of sacculus, near-end on the sacculus pipe, be equipped with the seal wire guide passageway that makes sacculus inflation's sacculus inflation passageway and seal wire pass through in the sacculus pipe, be provided with the intercommunicating pore on the pipe wall of sacculus pipe, the intercommunicating pore and the sacculus of sacculus inflation passageway on the sacculus pipe wall are linked: the whole shape of the sacculus under the expansion state is a truncated cone or a cone, the far end of the sacculus is a big-diameter end, the near end is a small-diameter end, the sacculus is composed of a far end face, a near end face, a conical side wall and a unit embolectomy protrusion, the far end face is in arc transition connection with the conical side wall, the near end face is in arc transition connection with the conical side wall, the unit embolectomy protrusion is arranged on the conical side wall of the sacculus at intervals and has a contraction state and an expansion state, the unit embolectomy protrusion is provided with a protrusion cavity which is communicated with the sacculus, the far end of the sacculus is attached to the blood vessel wall by setting the sacculus into the truncated cone or the cone, so that the far end of the sacculus can block the thrombus from flowing to the far end of the blood vessel and greatly reduce the friction of the sacculus to the blood vessel wall, the embolectomy protrusion is arranged on the sacculus, and thrombus with, the thrombus removal effect is good.
The unit thrombus taking bulges are arranged along the circumferential array of the balloon to form a unit thrombus taking bulge ring group, the unit thrombus taking bulge ring group is arranged along the axial linear array of the balloon, the unit thrombus taking bulges of the adjacent unit thrombus taking bulge ring groups are arranged in a staggered manner, and thrombus can be effectively prevented from reaching the far end of the balloon in the thrombus taking process by arranging the unit thrombus taking bulges of the adjacent unit thrombus bulge ring groups in a staggered manner.
The unit thrombus taking protrusion ring groups are arranged at the near end and the middle part of the balloon, at least three unit thrombus taking protrusion ring groups are arranged on the balloon, at least six unit thrombus taking protrusions are arranged on the unit thrombus taking protrusion ring groups, and the unit thrombus taking protrusion ring groups are arranged at the near end and the middle part of the balloon, so that thrombus is attached to the thrombus taking protrusions when the balloon catheter is withdrawn, thrombus flowing to the far end of the balloon can be effectively reduced, fragment thrombus is prevented from entering the far end of a blood vessel, and a good thrombus taking effect can be ensured.
The unit thrombus taking protrusion is hemispherical in shape in an expansion state, and due to the hemispherical design, the attachment area of thrombus on the thrombus taking protrusion is increased in the thrombus taking process, so that the thrombus with high viscosity on the blood vessel wall can be scraped off without damaging the blood vessel wall, and meanwhile, the thrombus taking protrusion can be effectively prevented from deforming under the action of resistance when the balloon catheter is withdrawn, so that part of thrombus attached to the thrombus taking protrusion flows to the far end of the blood vessel.
The balloon catheter of the invention is provided with a thrombus collecting disc at the near end of the balloon, the thrombus collecting disc has contraction and expansion states, the thrombus collecting disc is in an umbrella shape with an opening facing the near end of the balloon catheter in the overall shape in the expansion state, the outer diameter of the thrombus collecting disc is smaller than that of the large-diameter end of the saccule, the thrombus collecting disc is composed of linear unit thrombus taking cilia, the unit embolectomy cilia are arranged along the circumference of the balloon catheter by taking the axial lead of the balloon catheter as the center in an array way, the inner ends of the unit embolectomy cilia are fixedly connected with the balloon catheter, the outer ends of the unit embolectomy cilia are free ends, set up the thrombus catch tray through the near-end at the sacculus to at first can collect partial thrombus through the thrombus catch tray when making sacculus pipe withdraw, the thrombus catch tray sets to the umbrella form of opening towards sacculus pipe near-end, has increased the area of contact with the thrombus, and the thrombus collection rate is high and withdraw in-process thrombus and be difficult to drop.
The unit thrombus taking cilia comprise an upper elastic cilia, a 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 mode 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.
According to the invention, the balloon is sleeved with the reticular thrombus taking support, the far end and the near end of the thrombus taking support are respectively and fixedly connected with the balloon catheter, the thrombus taking support has a contraction state and an expansion state, the whole shape of the thrombus taking support in the expansion state is a circular table body or a cone body matched with the balloon, and when the balloon catheter is retracted by arranging the thrombus taking support, part of thrombus can be collected by the thrombus taking support, so that more thrombus can be further ensured to be taken out.
The invention has the beneficial effects that: the balloon is arranged into a truncated cone or a cone, the far end of the balloon is attached to the vascular wall, so that thrombus can be prevented from flowing to the far end of the blood vessel, friction of the balloon to the vascular wall can be greatly reduced, thrombus taking protrusions are arranged on the balloon, thrombus with high viscosity on the vascular wall and fragment thrombus in the blood vessel can be attached to the thrombus taking protrusions, and thrombus taking effect is good; the thrombus collecting disc is arranged at the near end of the balloon, so that part of thrombus can be collected through the thrombus collecting disc when the balloon catheter is withdrawn, the thrombus collecting disc is arranged to be umbrella-shaped with an opening facing the near 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 withdrawing process; when the thrombus taking support is arranged to enable the balloon catheter to be withdrawn, part of thrombus can be collected through the thrombus taking support, more thrombus can be further ensured to be taken out, the thrombus clearing effect is guaranteed, 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 thrombectomy stent of the present invention in an expanded state.
Fig. 2 is a structural side view of the balloon and thrombectomy stent in an expanded state. .
FIG. 3 is the assembling view of the whole structure of the balloon and the thrombus taking support in the contraction state.
Reference numerals: a balloon catheter-1, a marking ring-2, a stent fixing ring-3, a thrombus taking stent-4, a balloon-5, a far end face-501, a near end face-502, a conical side wall-503, thrombus taking cilia-6, an upper elastic cilia-601, a lower elastic cilia-602, a bending part-603 and a thrombus taking bulge-7.
Detailed Description
The invention is described below with reference to the accompanying drawings and examples.
A blood vessel dredging and cleaning device comprises a balloon catheter 1, a balloon 5 and a marking ring 2, wherein the balloon 5 is wrapped at the far end of the balloon catheter 1, the far end and the near end of the balloon 5 are respectively and fixedly connected with the balloon catheter which penetrates through the balloon, the balloon 5 has a contraction state and an expansion state, the marking ring 2 is arranged at the far end and the near end of the balloon on the balloon catheter 1, so that a doctor can conveniently develop and position under X-ray, the connection mode of the marking ring and the balloon catheter is the prior art, and is not described herein any more, a balloon expansion channel for expanding the balloon and a guide wire guide channel for passing the guide wire are arranged in the balloon catheter 1, a communication hole is arranged on the wall of the balloon catheter 1, the balloon expansion channel is communicated with the balloon through the communication hole on the wall of the balloon catheter, and the balloon 5 is in a circular truncated cone shape under the expansion, the far end of the sacculus is a big-diameter end, the near end is a small-diameter end, the sacculus 5 consists of a far end face 501, a near end face 502, a conical side wall 503 and a unit thrombus taking protrusion 7, the far end face 501 is in circular arc transitional connection with the conical side wall 503, the near end face 502 is in circular arc transitional connection with the conical side wall 503, the unit thrombus taking protrusion 7 is arranged on the conical side wall of the sacculus in a spaced distribution manner, the unit thrombus taking protrusion 7 has a contraction state and an expansion state, the unit thrombus taking protrusion 7 is provided with a protrusion cavity, the protrusion cavity is communicated with the sacculus 5, the far end of the sacculus is attached to a blood vessel wall by setting the sacculus into a circular truncated cone body or a blood vessel wall, so that the far end of the sacculus can be blocked from flowing to the far end of a blood vessel and the friction of the sacculus to the blood vessel wall can be greatly reduced, the, the thrombus removal effect is good. The balloon is arranged as a truncated cone in this embodiment, and may also be arranged as a cone.
The protruding 7 of embolus is got to unit sets up along 5 circumference arrays of sacculus and forms the protruding ring group of embolus is got to unit, the protruding ring group of embolus is got to unit sets up along 5 axial linear arrays of sacculus, the protruding 7 setting of staggering of embolus is got to unit of the protruding ring group of adjacent unit embolus, gets the protruding setting of staggering of embolus through the unit with the protruding ring group of adjacent unit thrombus, can prevent effectively that the thrombus from reaching the sacculus distal end at the process of getting the embolus.
The protruding ring group of embolus is got to unit sets up near-end and middle part at sacculus 5, be equipped with three unit on the sacculus 5 at least and get the protruding ring group of embolus, the protruding ring group of embolus is got to unit is equipped with six unit at least and gets and tie protruding 7, gets the protruding ring group of embolus with the unit and sets up near-end and the middle part at the sacculus to thrombus is attached to when making sacculus pipe 1 withdraw and is being got and tie protruding, can effectively reduce the thrombus that flows to the sacculus distal end, thereby prevents that the piece thrombus from entering into the blood vessel distal end, in order to ensure to play better effect of getting the embolus.
The protruding 7 of embolus is got to unit shape is the hemisphere under the inflation state, adopts hemispherical design, and at the in-process of getting the embolus, has increased the area of adhering to of thrombus on getting the embolus arch, the thrombus that viscidity is strong on the vascular wall also can be scraped off and can not harm the vascular wall, also can effectively prevent simultaneously when sacculus pipe withdraws, gets to tie protruding production deformation under the effect of resistance, leads to the part to adhere to the thrombus flow direction blood vessel distal end on getting the embolus arch.
A thrombus collecting tray is arranged at the near end of the saccule on the saccule catheter, the thrombus collecting tray has a contraction and expansion state, the thrombus collecting disc is in an umbrella shape with an opening facing the near end of the balloon catheter in the overall shape in the expansion state, the outer diameter of the thrombus collecting disc is smaller than that of the large-diameter end of the saccule, the thrombus collecting disc is composed of linear unit thrombus taking cilia 6, the unit embolectomy cilia 6 are arranged along the circumference of the saccule catheter 1 by taking the axial lead of the saccule catheter as the center, the inner end of the unit embolectomy cilia 6 is fixedly connected with the saccule conduit 1, the outer end is a free end, set up the thrombus catch tray through the near-end at the sacculus to at first can collect partial thrombus through the thrombus catch tray when making sacculus pipe withdraw, the thrombus catch tray sets to the umbrella form of opening towards sacculus pipe near-end, has increased the area of contact with the thrombus, and the thrombus collection rate is high and withdraw in-process thrombus and be difficult to drop.
The unit is got and is tied cilia 6 by last elasticity cilia 601, elasticity cilia 602, kink 603 and constitute down, go up the inner and sacculus pipe 1 fixed connection of elasticity cilia 601, the outer end is connected through kink 603 and elasticity cilia 602 bending type down, it is 60-90 degrees to go up the contained angle between elasticity cilia 601 and the sacculus pipe 1 outer wall, the contained angle between elasticity cilia 602 and the sacculus pipe 1 outer wall is 0-45 degrees down, and the design of this angle has further increased the area of contact who gets and tie cilia and thrombus, can collect more thrombus, is difficult to drop the flow direction sacculus distal end at getting the thrombus in-process simultaneously. In this embodiment, the unit-securing cilia 6 are made of a high elastic polymer material, so that the unit-securing cilia 6 have a contracted state and an expanded state.
Be equipped with the shape on sacculus 5 overcoat on sacculus pipe 1 and be netted thrombectomy support 4, distal end, the near-end of thrombectomy support 4 respectively with sacculus pipe 1 fixed connection, thrombectomy support 4 has contraction state and inflation state, thrombectomy support 4 is the round platform body or the cone with sacculus matched with in the whole shape of inflation state, and when setting up thrombectomy support so that sacculus pipe withdraw, partial thrombus can be collected through thrombectomy support, and further assurance can take out more thrombus. The reticular structure of the embolectomy support is designed in various modes, the adopted structure in the embodiment is that the embolectomy support consists of a unit left spiral support and a unit right spiral support, the unit left spiral support and the unit right spiral support are arranged in a crossed mode to form a unit grid, the size of the unit grid of the embolectomy bracket is gradually reduced from the far end of the sacculus to the near end of the sacculus in an expansion state, the unit embolectomy bulges are arranged in the unit grid, by the design, when the saccule is expanded, the thrombus taking support is tightly matched with the outer wall of the saccule along with the expansion of the thrombus taking support, partial thrombus is collected by the thrombus taking support, the thrombus is effectively prevented from flowing to the far end of the saccule, when the sacculus pipe withdraws, the spiral design of left spiral support, right spiral support for the area of contact grow of thrombectomy support and thrombus can block thrombus flow to the sacculus distal end, realizes more effective collection thrombus.
In this embodiment, the distal end and the proximal end of the balloon are fixedly connected with the stent fixing rings 3, respectively, the two ends of the embolectomy stent are fixed on the stent fixing rings, and the connection manner between the stent fixing rings and the balloon catheter is prior art and will not be described herein. In this embodiment, the inner ends of the cilia of the embolectomy are also secured to the stent-securing ring.
The balloon can be made of rubber, silica gel, latex, nylon and the like; 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, the initial state of the balloon is as shown in fig. 3, the balloon, the thrombus taking support and the thrombus taking cilia are in a contracted state, the sheath is sleeved outside the balloon catheter, the balloon is in a contracted state and has a strip-shaped overall shape, and the thrombus taking support is in a contracted state and the unit grids on the thrombus taking support are the same in size.
When the invention is used, firstly, a guide wire is penetrated in a guide wire guide channel of the balloon catheter, under the guide of the guide wire, the sheath catheter is carried to the far end of thrombus by the sheath catheter, 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 catheter are withdrawn, 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 saccule is attached to the wall of a blood vessel, the thrombus taking support is expanded along with the saccule, after the saccule is in an inflated state of being attached to the wall of the blood vessel, the thrombus taking bulge and the thrombus taking support are both in an expanded state, the doctor pulls the balloon catheter to withdraw the balloon catheter, the thrombus taking cilia first contacts with the far end of the thrombus to collect a part of the thrombus, the balloon catheter is continuously withdrawn, the part of the thrombus is attached to the thrombus taking bulge and the thrombus, finally, the thrombus is removed.
The invention has the beneficial effects that: the balloon is arranged into a truncated cone or a cone, the far end of the balloon is attached to the vascular wall, so that thrombus can be prevented from flowing to the far end of the blood vessel, friction of the balloon to the vascular wall can be greatly reduced, thrombus taking protrusions are arranged on the balloon, thrombus with high viscosity on the vascular wall and fragment thrombus in the blood vessel can be attached to the thrombus taking protrusions, and thrombus taking effect is good; the thrombus collecting disc is arranged at the near end of the balloon, so that part of thrombus can be collected through the thrombus collecting disc when the balloon catheter is withdrawn, the thrombus collecting disc is arranged to be umbrella-shaped with an opening facing the near 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 withdrawing process; when the thrombus taking support is arranged to enable the balloon catheter to be withdrawn, part of thrombus can be collected through the thrombus taking support, more thrombus can be further ensured to be taken out, the thrombus clearing effect is guaranteed, the operation time is saved, and the injury to a patient is reduced.
Claims (7)
1. The utility model provides a blood vessel mediation cleaning device, includes sacculus pipe, sacculus, mark ring, the distal end parcel of sacculus pipe has the sacculus, the distal end of sacculus, near-end respectively with the sacculus pipe fixed connection who passes the sacculus, be equipped with the mark ring at the distal end of sacculus, near-end on the sacculus pipe, 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 intercommunicating pore and the sacculus of sacculus inflation passageway on the sacculus pipe wall are linked together, its characterized: the sacculus is round platform body or cone in the whole shape under the inflation state, the distal end of sacculus is big footpath end, and the near-end is the path end, the sacculus is got by distal end terminal surface, near-end terminal surface, toper lateral wall, unit and is tied protrudingly and constitute, distal end terminal surface and toper lateral wall circular arc transitional coupling, near-end terminal surface and toper lateral wall circular arc transitional coupling, interval distribution is equipped with the unit on the toper lateral wall of sacculus and gets to tie protrudingly, the unit is got to tie the arch and is equipped with protruding cavity, protruding cavity is linked together with the sacculus.
2. The vascular dredge cleaning device of claim 1, wherein: the unit thrombus taking bulges are arranged along the circumferential array of the balloon to form a unit thrombus taking bulge ring group, the unit thrombus taking bulge ring group is arranged along the axial linear array of the balloon, and the unit thrombus taking bulges of the adjacent unit thrombus taking bulge ring groups are arranged in a staggered manner.
3. A vascular pull through clearing device as claimed in claim 2, wherein: the unit embolectomy protruding ring groups are arranged at the near end and the middle part of the balloon, at least three unit embolectomy protruding ring groups are arranged on the balloon, and at least six unit embolectomy protrusions are arranged on the unit embolectomy protruding ring groups.
4. A vascular pull through cleaning device as claimed in claim 1, 2 or 3, wherein: the cell embolectomy projections are hemispherical in shape in the expanded state.
5. A vascular pull through cleaning device as claimed in claim 1, 2 or 3, wherein: be equipped with the thrombus catch tray at the sacculus near-end on the sacculus pipe, the thrombus catch tray is the umbrella form of opening towards sacculus pipe near-end under the inflation state overall shape, the external diameter of thrombus catch tray is less than the external diameter of sacculus major diameter end, the thrombus catch tray is got by linear unit and is tied the cilium and constitute, the unit is got and is tied the cilium and use sacculus pipe axial lead to set up along sacculus pipe circumference array as the center, the unit is got and is tied the inner and sacculus pipe fixed connection of cilium, and the outer end is the free end.
6. A vascular pull through cleaning device as claimed in claim 5, wherein: the unit thrombus taking cilia consists of upper elastic cilia, lower elastic cilia and a bending part, 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 mode 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.
7. A vascular pull through cleaning device as claimed in claim 1 or 2 or 3 or 6, wherein: the thrombus taking bracket is sleeved outside the balloon on the balloon catheter and is in a net shape, the far end and the near end of the thrombus taking bracket are respectively and fixedly connected with the balloon catheter, and the whole shape of the thrombus taking bracket in an expansion state is a cone or a truncated cone matched with the balloon.
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 true CN111887935A (en) | 2020-11-06 |
| CN111887935B CN111887935B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010743507.1A Active CN111887935B (en) | 2020-07-29 | 2020-07-29 | Vascular dredging and cleaning device |
Country Status (2)
| Country | Link |
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| CN (1) | CN111887935B (en) |
| WO (1) | WO2022022223A1 (en) |
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| CN113440718A (en) * | 2021-06-23 | 2021-09-28 | 上海翰凌医疗器械有限公司 | Cerebral embolism prevention type balloon dilatation catheter |
| WO2022022223A1 (en) * | 2020-07-29 | 2022-02-03 | 山东维心医疗器械有限公司 | Blood vessel dredging and cleaning device |
| CN114587499A (en) * | 2022-03-14 | 2022-06-07 | 上海腾复医疗科技有限公司 | Vascular opening device |
| CN115737065A (en) * | 2022-11-30 | 2023-03-07 | 上海腾复医疗科技有限公司 | Balloon stent thrombus taking device |
| WO2023087455A1 (en) * | 2021-11-17 | 2023-05-25 | 上海腾复医疗科技有限公司 | Vascular recanalization device |
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| Publication number | Publication date |
|---|---|
| WO2022022223A1 (en) | 2022-02-03 |
| CN111887935B (en) | 2023-10-20 |
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