CN112294395A - Vascular sheath system capable of achieving minimally invasive embolectomy through Fogarty balloon - Google Patents
Vascular sheath system capable of achieving minimally invasive embolectomy through Fogarty balloon Download PDFInfo
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- CN112294395A CN112294395A CN202010888032.5A CN202010888032A CN112294395A CN 112294395 A CN112294395 A CN 112294395A CN 202010888032 A CN202010888032 A CN 202010888032A CN 112294395 A CN112294395 A CN 112294395A
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
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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
- A61B2017/22055—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 with three or more 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, 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
- A61B2017/22071—Steering
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/109—Balloon catheters with special features or adapted for special applications having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
Abstract
The invention discloses a vascular sheath system capable of micro-traumatizing and embolectomy through a Fogarty balloon, which comprises a vascular sheath and a sheath core, wherein the sheath core penetrates through the outlet end and the inlet end of the vascular sheath and is matched and connected with the vascular sheath in the length direction of the vascular sheath, a first balloon is arranged in the inlet end of the vascular sheath in an inner measuring way, a second balloon is arranged around the outer side of the vascular sheath between the first balloon and the second balloon; the sheath wall of the vascular sheath is also provided with a first channel, a second channel and a third channel which are respectively communicated with the first sacculus, the second sacculus and the third sacculus correspondingly, and each inlet of each channel is led out from the side surface of the sheath wall close to the inlet end of the vascular sheath. The invention utilizes the combination of the vascular sheath and the Fogarty balloon thrombus taking catheter to pull the thrombus out of the body through the vascular sheath under the minimally invasive condition, has the characteristics of high efficiency, thoroughness and low cost, and has less bleeding and quick recovery.
Description
Technical Field
The invention relates to the technical field of vascular surgical operation treatment, in particular to a vascular sheath system capable of achieving minimally invasive thrombus extraction through a Fogarty balloon.
Background
The lower limb thrombosis is a frequently encountered disease at present, lower limb venous thrombosis causes limb swelling, serious to delayed recovery and ulcer necrosis, even secondarily causes pulmonary artery embolism to endanger life, acute lower limb artery embolism and thrombosis are more rapid in disease progress, emergency operation is often needed, treatment is complex, and if the problem that lower limb ischemia necrosis can be caused, and amputation at later stage even death can not be solved in time. In addition, with the development of interventional surgery, the occurrence of thrombus in the stent after the lower limb vascular stent is implanted is not rare, and the treatment of the thrombus is a problem that is becoming more and more frequent.
The current major treatment methods include: the conservative method is through peripheral blood vessel thrombolysis anticoagulation treatment, and the operation method is divided into intervention tube thrombolysis, intervention minimally invasive suction thrombus and open operation thrombus removal.
Wherein the conservative treatment effect is poor, and the risk of thrombolysis and anticoagulation hemorrhage is higher. The catheterization and thrombolysis also need anticoagulation thrombolysis treatment, but the thrombolysis catheter contacts thrombus to ensure better effect, but has larger bleeding risk, and the catheterization under the intervention is carried out for a long time, a patient needs to brake for a long time during catheterization, the pain is matched, and the effect on arterial embolic emboli (such as arterial plaque and the like) and old thrombus is not good.
The minimally invasive mechanical thrombus aspiration has the advantages of small wound, quick recovery, incomplete thrombus and plaque removal, large blood loss, incomplete thrombus aspiration and frequent need of subsequent stent implantation. The existing method for dragging the thrombus by the bracket in the neurology department can treat a small amount of thrombus formed by cerebral vessels, is not suitable for removing a large amount of thrombus in lower limb arteries, is expensive, has high medical insurance pressure, and is difficult to be widely developed by subordinate hospitals and local residents.
The open operation is to use a Fogarty balloon catheter to perform vascular incision and thrombus removal in the groin area, the effect is positive, but at present, the most exact effect is to perform vascular incision and thrombus removal under an intervention room, a hospital needs to be equipped with a hybrid operation room to perform incision and thrombus removal, and in addition, the defects that vascular suture is narrow, lymphatic leakage, incision infection, long operation time, complex anatomical structure, slow postoperative recovery and the like are easily formed in the incision operation.
Currently, the interventional surgery for treating diseased blood vessels in an over-selected mode is a well-known concept for treating thrombus more thoroughly, but how to take out or eliminate the thrombus reasonably under the condition of an intervention room is a key problem.
The thrombus removing system adopted in the prior art is used for rotationally cutting the thrombus out of a body by utilizing a mechanical rotary suction technology through a tool bit at the head end of a catheter and utilizing the Bernoulli principle. The thrombus can be quickly and efficiently removed, so that the true lesion of the blood vessel is exposed from acute embolus to chronic embolus, the long-section stent is prevented from being placed, and the probability of postoperative restenosis is reduced; avoids the treatment risk caused by postoperative thrombolysis and reduces the hospitalization time of the patient. But the cost is high, the thrombus is cleared, a large amount of blood loss is difficult to avoid, and all the thrombus on the vessel wall cannot be cleared completely.
The Fogarty balloon embolectomy catheter is used for cutting and embolectomy under the condition of a hybridization operating room, so that the advantages of low cost and relatively thorough embolectomy are achieved, but the conditions of the hybridization operating room are needed, the requirements on the operation technology are high, and the problems of slow recovery, multiple complications and the like of open operation are caused.
Disclosure of Invention
Aiming at the technical problems in the prior art which need to be solved urgently, the invention provides a vascular sheath system capable of taking thrombus through Fogarty balloon micro-trauma, the thrombus is dragged out of the body through the vascular sheath under the micro-trauma by combining the vascular sheath with a Fogarty balloon thrombus taking catheter, the characteristics of definite, efficient, thorough and low-cost thrombus recovery of the Fogarty balloon thrombus taking catheter are utilized, the thrombus recovery is completed under the micro-trauma, the effect is definite, the bleeding is less, and the recovery is fast.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vascular sheath system capable of achieving minimally invasive embolectomy through Fogarty balloons comprises a bendable vascular sheath and a sheath core, wherein the sheath core penetrates through an outlet end and an inlet end of the vascular sheath and is connected with the vascular sheath in a matched mode in the length direction of the vascular sheath, a first balloon is arranged in the inlet end of the vascular sheath in an inner measuring mode, a second balloon is arranged on the periphery of the outer side; and the sheath wall of the vascular sheath is also provided with a first channel, a second channel and a third channel which are respectively and correspondingly communicated with the first balloon, the second balloon and the third balloon, and inlets of the first channel, the second channel and the third channel are led out from the side surface of the sheath wall close to the inlet end of the vascular sheath.
Further, the first balloon comprises a first balloon I and a first balloon II, the first balloon I and the first balloon II are respectively communicated with the first channel, and after the first balloon I and the first balloon II are inflated through the first channel, the inner cavity of the inlet end of the blood vessel sheath is sealed by the first balloon I and the first balloon II.
Further preferably, after the second balloon is inflated through the second channel, the end of the second balloon extends out of the outlet end face of the vascular sheath.
More preferably, the inlet end of the vascular sheath is further provided with a tube seat, the outer diameter of the tube seat is slightly larger than that of the rest part of the vascular sheath, the first balloon I and the first balloon II are positioned in the tube seat, and when the first balloon I and the first balloon II are not inflated, the sheath core penetrates between the first balloon I and the first balloon II.
The third balloon is positioned at the middle position of the blood vessel sheath.
The third balloon is larger than 20mm in diameter after filling.
One end of the sheath core is a conical structure extending 20-40mm out of the outlet end of the vascular sheath (1), and the other end of the sheath core extends out of the inlet end of the vascular sheath by more than 10 mm.
The vascular sheath is made of polyamide-6, the inner side surface of the vascular sheath is coated with a hydrophilic coating, and the sheath core is made of polyethylene and barium sulfate composite materials.
The inner diameter of the vascular sheath is greater than 18F.
The technical scheme of the invention has the following beneficial effects:
A. the vascular sheath system provided by the invention can realize thrombus removal by utilizing the Fogarty balloon catheter under the condition of intervention without incision, compared with the interventional operation, the thrombus removal is more thorough, and compared with the traditional operation, the vascular sheath system avoids complications caused by the incision operation; the thrombus recovery device has the advantages that the arterial thrombus mixed with plaque and the arteriovenous thrombus mixed with old thrombus are recovered more thoroughly, the recovered thrombus can be completely recovered into the sheath tube, the condition that the thrombus falls off to the lower limb of the other side is avoided, and the thrombus dissolving effect is better compared with a tube.
B. When the thrombus removal effect is ensured, if the diseased blood vessel contains thrombus and is also narrow with speckles or the interlayer appears to influence the far-end blood flow, the blood vessel sheath can be used as a channel to carry out the sacculus expansion in the blood vessel and the stent implantation, and further intervene in the intracavity treatment;
C. compared with the current thrombus aspiration system in the blood vessel cavity, the cost of the blood vessel sheath system has obvious price advantage, the price of the blood vessel sheath system is 50 percent of the price of the thrombus aspiration system, and the blood vessel sheath system is easy to popularize; can be applied to arterial thrombosis, venous thrombosis and thrombosis in the stent after the stent is placed; meanwhile, compared with the incision and embolectomy, the invention can realize local anesthesia treatment and save a large amount of medical resources.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings which are needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained from the drawings without inventive labor to those skilled in the art.
FIG. 1 is a schematic overall view of a vascular sheath system provided by the present invention;
FIG. 2 is a schematic view of the inflated state of each balloon on the sheath of the blood vessel provided by the present invention;
FIG. 3 is a schematic structural view showing a sheath exit port of the vascular sheath in an implanted state;
FIG. 4 is a schematic structural view of a sheath outlet filling state of a vascular sheath;
FIG. 5 is a schematic structural view showing a state where a sheath middle portion of the blood vessel sheath is inserted;
FIG. 6 is a schematic structural view of the inflated state of the middle sheath portion of the vascular sheath;
FIG. 7 is a schematic structural view of the open state of the first balloon at the sheath inlet part of the vascular sheath;
FIG. 8 is a schematic structural view of a first balloon of a sheath inlet portion of a vascular sheath in an inflated state;
fig. 9 a-9 i are schematic diagrams of the operation at various stages of a particular working method.
Description of reference numerals:
1-vascular sheath; 2-sheath core; 3-first balloon, 31-first balloon I, 32-first balloon II; 4-a second balloon; 5-a third balloon; 6-a first channel; 7-a second channel; 8-a third channel; 9-tube seat; 10-connecting channel of inner cavity of sheath tube; 20-filling with gas.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
As shown in fig. 1 and fig. 2, the vascular sheath system capable of micro-creating embolus by using a Fogarty balloon provided by the invention comprises a bendable vascular sheath 1 and a sheath core 2, wherein the sheath core 2 penetrates through an outlet end and an inlet end of the vascular sheath 1 and is matched and connected with the vascular sheath 1 in the length direction, a first balloon 3 is arranged in the inlet end of the vascular sheath 1 in a measuring way, a second balloon 4 is arranged around the outer side of; the sheath wall of the blood vessel sheath 1 is also provided with a first channel 6, a second channel 7 and a third channel 8 which are respectively communicated with the first balloon 3, the second balloon 4 and the third balloon 5 correspondingly, inlets of the first channel 6, the second channel 7 and the third channel 8 are led out from the side surface of the sheath wall close to the inlet end of the blood vessel sheath 1, and the balloons can be in a filling state in a gas injection mode and the like. The blood vessel sheath and the sheath core are both made of flexible materials, and the sheath core plays a good radial supporting role for the blood vessel sheath.
In order to leave sufficient space for the Fogarty balloon to retrieve thrombus, the vascular sheath of the present invention has a diameter greater than 18F.
The first balloon 3 here comprises a first balloon I31 and a first balloon II32, the first balloon I31 and the first balloon II32 are respectively communicated with the first channel 6, and after the first balloon I31 and the first balloon II32 are inflated through the first channel 6, the first balloon I31 and the first balloon II32 seal the inner cavity of the inlet end of the blood vessel sheath 1, as shown in fig. 2, and the first balloon I and the first balloon II are symmetrically arranged in the inner cavity of the blood vessel sheath.
In order to make thrombus enter the vessel sheath completely, after the second balloon 4 is inflated through the second channel 7, the end of the second balloon 4 extends out of the outlet end face of the vessel sheath 1, as shown in fig. 3 and 4.
As shown in figure 1, the invention is also provided with a tube socket 9 at the inlet end of the blood vessel sheath 1, the outer diameter of the tube socket 8 is slightly larger than that of the rest part of the blood vessel sheath 1, the first balloon I31 and the first balloon II32 are positioned in the tube socket 9, and when the first balloon I31 and the first balloon II32 are not inflated, the sheath core 2 penetrates between the first balloon I31 and the first balloon II 32.
The third balloon 5 in the present invention is located in the middle of the vascular sheath 1, i.e. the third balloon is located at the bifurcation. The third balloon is larger than 20mm in diameter after filling.
Compared with the common blood vessel sheath core, the blood vessel sheath core adopted by the invention is shorter, so that thrombus on the affected side can be interfered as little as possible, namely, one end of the sheath core adopts a conical structure which extends out of the outlet end of the blood vessel sheath 1 by 20-40mm, the other end of the sheath core extends out of the inlet end of the blood vessel sheath 1 by more than 10mm, the conical structure is shorter, the thrombus in front is not easily influenced, but the risk coefficient of following the blood vessel sheath is increased, and the selection of a proper size is particularly important. The vessel sheath and the sheath core material have better flexibility, can realize the purpose of turning the mountain to the vessel of the lower limb at the opposite side through the femoral artery puncture of the lower limb at the healthy side, but the sheath tube, particularly the sheath tube opening has better longitudinal supporting force, so as to be beneficial to recovering thrombus. The vascular sheath of the present invention is preferably made of polyamide-6 material, the inner side of the vascular sheath is coated with a hydrophilic coating, and the sheath core is preferably made of a composite material of polyethylene and barium sulfate. The first balloon, the second balloon and the third balloon are made of materials such as cross-linked polyethylene, polyethylene terephthalate (PET) and the like.
As shown in fig. 3 to 8, the blood vessel sheath is provided with balloons at the sheath outlet, the sheath inlet, and the intermediate position, respectively, and shows a state when the sheath core is inserted into the blood vessel sheath and when each balloon on the blood vessel sheath is inflated.
As shown in fig. 3 and 4, the sheath outlet of the blood vessel sheath includes a conventional sheath opening, a layer of balloon material is added around the sheath opening to form a second balloon, the second balloon is filled with gas 20, and a three-way catheter is reserved at the sheath inlet to pressurize the second balloon, once the second balloon is pressurized, the second balloon surrounds the blood vessel sheath, so that the sheath outlet can be tightly attached to the surrounding blood vessel, and the thrombus is prevented from being extruded outside the sheath outlet during thrombus recovery.
As shown in fig. 5 and 6, the sheath inlet of the vascular sheath includes a special tube seat structure of the vascular sheath, and the distal end of the tube seat is divided into two channels, namely a second channel and a third channel, which are respectively connected with the second balloon at the sheath outlet and a third balloon in the middle of the vascular sheath. The tube holder structure itself includes an inflatable first balloon and communicates with the first passageway to close the lumen of the sheath and prevent blood flow therethrough.
As shown in fig. 7 and 8, the middle special balloon device is a third balloon, and the balloon cavity of the third balloon is connected to a three-way pipe which is branched close to the sheath inlet through a third channel. The third balloon is sized to be inflated to a diameter of more than 20mm and can be secured to the lower abdominal aorta or inferior vena cava without retracting to the iliac vessels when inflated.
As shown in fig. 9a to 9i, when performing minimally invasive surgery, the blood vessel sheath is placed at the affected part, the healthy side puncture is introduced into the blood vessel sheath, the mountain is smoothly turned to the opposite side, the blood vessel sheath outlet is positioned at the level outside the ilium general ilium, namely the proximal end of thrombus, the second balloon is positioned at the affected side beyond the straddling part, and the third balloon is positioned at the bifurcation as shown in fig. 9 b.
As shown in fig. 9c, a Fogarty balloon catheter is passed through the vascular sheath and extended out of the thrombus site;
as in fig. 9d, the individual balloons are inflated;
adjusting the size of the Fogarty balloon to recover the thrombus into the vascular sheath, and finally slightly relaxing the Fogarty balloon when the Fogarty balloon enters the vascular sheath to recover the balloon into the vascular sheath, as shown in figure 9 e;
as in fig. 9f, the first balloon at the sheath entry site is released, pulling the thrombus out;
when the thrombus is pulled out of the inlet end of the vascular sheath, the first balloon is refilled to prevent a large amount of blood from losing, and then the thrombus is completely pulled out;
see fig. 9h, relax the second and third balloons;
see fig. 9i, finally the vascular sheath is withdrawn, the puncture site is sutured and the minimally invasive surgery is completed.
The invention utilizes the combination of the vascular sheath and the Fogarty balloon thrombus removal catheter to drag thrombus out of the body through the vascular sheath under the minimally invasive condition, not only utilizes the characteristics of exact thrombus recovery, high efficiency, thoroughness and low cost of the Fogarty balloon thrombus removal catheter, but also ensures that the thrombus recovery is completed under the minimally invasive condition, and has definite effect, less bleeding and quick recovery.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (9)
1. A vascular sheath system capable of achieving minimally invasive embolectomy through Fogarty balloons comprises a bendable vascular sheath (1) and a sheath core (2), wherein the sheath core (2) penetrates through an outlet end and an inlet end of the vascular sheath (1) and is in fit connection with the vascular sheath (1) in the length direction of the vascular sheath, and is characterized in that a first balloon (3) is arranged at the inner side of the inlet end of the vascular sheath (1), a second balloon (4) is arranged around the outer side of the vascular sheath (1) of the vascular; a first channel (6), a second channel (7) and a third channel (8) which are correspondingly communicated with the first balloon (3), the second balloon (4) and the third balloon (5) respectively are also arranged in the sheath wall of the blood vessel sheath (1), and inlets of the first channel (6), the second channel (7) and the third channel (8) are led out from the side surface of the sheath wall close to the inlet end of the blood vessel sheath (1).
2. The Fogarty balloon minimally invasive embolectomy vascular sheath system according to claim 1, wherein the first balloon (3) comprises a first balloon I (31) and a first balloon II (32), the first balloon I (31) and the first balloon II (32) are respectively communicated with the first channel (6), and after the first balloon I (31) and the first balloon II (32) are inflated through the first channel (6), the first balloon I (31) and the first balloon II (32) seal the inner cavity at the inlet end of the vascular sheath (1).
3. The Fogarty balloon minimally invasive embolectomy vascular sheath system according to claim 2, wherein after the second balloon (4) is inflated by gas injection through the second channel (7), the end of the second balloon (4) protrudes out of the outlet end face of the vascular sheath (1).
4. The Fogarty balloon minimally invasive embolectomy vascular sheath system according to claim 3, wherein the inlet end of the vascular sheath (1) is further provided with a tube seat (9), the outer diameter of the tube seat (8) is slightly larger than that of the rest part of the vascular sheath (1), the first balloon I (31) and the first balloon II (32) are positioned in the tube seat (9), and the sheath core (2) penetrates between the first balloon I (31) and the first balloon II (32) when the first balloon I (31) and the first balloon II (32) are not filled.
5. A vascular sheath system for minimally invasive embolectomy with a Fogarty balloon according to any of claims 1-4, wherein the third balloon (5) is located in the middle of the vascular sheath (1).
6. The Fogarty balloon minimally invasive embolectomy vascular sheath system of claim 5, wherein the third balloon is larger than 20mm in diameter after filling.
7. The vessel sheath system capable of being used for minimally invasive embolectomy by means of a Fogarty balloon according to claim 1, wherein one end of the sheath core (2) is of a conical structure extending 20-40mm out of the outlet end of the vessel sheath (1), and the other end of the sheath core extends more than 10mm out of the inlet end of the vessel sheath (1).
8. The vascular sheath system capable of achieving minimally invasive embolectomy through the Fogarty balloon according to claim 1, wherein the vascular sheath (1) is made of polyamide-6 materials, the inner side face of the vascular sheath is coated with a hydrophilic coating, and the sheath core (2) is made of polyethylene and barium sulfate composite materials.
9. The Fogarty balloon minimally invasive embolectomy vascular sheath system of claim 1, wherein the inner diameter of the vascular sheath (1) is greater than 18F.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113768617A (en) * | 2021-09-13 | 2021-12-10 | 武汉大学中南医院 | Integrated incision and expansion knife and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020165598A1 (en) * | 2001-05-01 | 2002-11-07 | Velocimed | Emboli Protection devices and related methods of use |
| US8057497B1 (en) * | 2009-07-28 | 2011-11-15 | Seshadri Raju | Thrombectomy removal device kit |
| CN203989422U (en) * | 2014-07-24 | 2014-12-10 | 深圳市金瑞凯利生物科技有限公司 | The two sacculus dilating catheters in three chambeies |
| CN205339056U (en) * | 2015-12-30 | 2016-06-29 | 广州市番禺区中心医院 | Thrombus fixed point thrombectomy device |
| CN211325376U (en) * | 2019-06-06 | 2020-08-25 | 徐勇 | Intravascular thrombus removal balloon catheter |
-
2020
- 2020-08-28 CN CN202010888032.5A patent/CN112294395A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020165598A1 (en) * | 2001-05-01 | 2002-11-07 | Velocimed | Emboli Protection devices and related methods of use |
| US8057497B1 (en) * | 2009-07-28 | 2011-11-15 | Seshadri Raju | Thrombectomy removal device kit |
| CN203989422U (en) * | 2014-07-24 | 2014-12-10 | 深圳市金瑞凯利生物科技有限公司 | The two sacculus dilating catheters in three chambeies |
| CN205339056U (en) * | 2015-12-30 | 2016-06-29 | 广州市番禺区中心医院 | Thrombus fixed point thrombectomy device |
| CN211325376U (en) * | 2019-06-06 | 2020-08-25 | 徐勇 | Intravascular thrombus removal balloon catheter |
Non-Patent Citations (1)
| Title |
|---|
| 王义平 等: "Fogarty取栓改良术在介入治疗May-Thurner综合征的临床应用", 临床放射学杂志, vol. 32, no. 10, pages 1493 - 1496 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113768617A (en) * | 2021-09-13 | 2021-12-10 | 武汉大学中南医院 | Integrated incision and expansion knife and using method thereof |
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