CN112294395B - Vascular sheath system capable of taking thrombus through Fogarty sacculus minimally invasive - Google Patents
Vascular sheath system capable of taking thrombus through Fogarty sacculus minimally invasive Download PDFInfo
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- CN112294395B CN112294395B CN202010888032.5A CN202010888032A CN112294395B CN 112294395 B CN112294395 B CN 112294395B CN 202010888032 A CN202010888032 A CN 202010888032A CN 112294395 B CN112294395 B CN 112294395B
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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
-
- 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
-
- 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
-
- 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
- A61B2017/22055—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 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
- 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
- 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
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a vascular sheath system capable of taking thrombus through Fogarty sacculus minimally invasive, 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 connected with the vascular sheath in a matched manner in the length direction, a first sacculus is arranged in the inlet end of the vascular sheath, a second sacculus is arranged around the outer side of the sheath wall of the outlet end of the vascular sheath, a third sacculus is arranged around the outer side of the sheath wall of the vascular sheath between the first sacculus and the second sacculus, and the inner side surfaces of the second sacculus and the third sacculus are fixed on the outer side of the sheath wall of the vascular sheath; the sheath wall of the vascular sheath is also provided with a first channel, a second channel and a third channel which are respectively correspondingly communicated with the first balloon, the second balloon and the third balloon, 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 vascular sheath to combine with the Fogarty saccule thrombus taking catheter to drag thrombus out of the body through the vascular sheath under the micro-creation, and 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 taking thrombus through Fogarty sacculus minimally invasive.
Background
The thrombus formation of the lower limb is a frequently-occurring disease at present, the venous thrombus of the lower limb causes limb swelling, the lower limb is seriously delayed to be healed, ulcer necrosis is caused, even the pulmonary arterial embolism is secondarily caused to endanger life, the thrombus formation is combined with the arterial embolism of the acute lower limb, the condition progress is rapid, emergency operation is often required, the treatment is complicated, and if the ischemia of the lower limb is not solved in time, the ischemia necrosis of the lower limb, the later amputation of the limb and even death can be caused. In addition, with the development of interventional operations, the occurrence of thrombus in the lower limb vascular stent after the lower limb vascular stent is placed is not rare, and the treatment of thrombus is also a problem which is gradually frequent.
The main treatment methods at present comprise: the conservative method is thrombolysis and anticoagulation treatment through peripheral blood vessels, and the operation method is divided into interventional setting Guan Rong suppository, interventional minimally invasive suction and open operation thrombolysis.
The conservative treatment effect is poor, and the thrombolysis anticoagulation bleeding risk is high. The Guan Rong suppository is required to be subjected to anticoagulation thrombolysis treatment, but the thrombolysis catheter is better in thrombus contact effect, but the bleeding risk is larger, and the long-term catheterization is performed under intervention, so that the long-term braking is required during catheterization of a patient, the pain is matched, and the effects on arterial embolism emboli (such as arterial plaque and the like), old thrombus and the like are poor.
Minimally invasive mechanical thrombolysis has the advantages of small trauma and quick recovery, but often cannot thoroughly remove thrombus and plaque, has large blood loss, is not thorough, and often requires subsequent stent placement. The existing method for pulling the thrombus through the bracket in the neurology can treat a small amount of thrombus formed by cerebral vessels, is not suitable for removing a large amount of thrombus such as lower limb arteries, has high cost and high medical insurance pressure, and is difficult to commonly develop for lower hospitals and local residents.
The open operation is to cut and remove the thrombus in the inguinal region blood vessel by utilizing the Fogarty saccule thrombus removing catheter, the effect is definite, but the current effect is the most definite, and the blood vessel thrombus removing is selected under the intervention room, and the hospital is required to be equipped with a hybridization operating room to realize the cut and remove the thrombus, in addition, the cut operation is easy to form the defects that the blood vessel suture is narrow, lymph leaks, cut infection, long operation time, complex anatomical structure, slow postoperative recovery and the like.
At present, the super-selected treatment of lesion blood vessels in interventional operations is a recognized concept of more thoroughly treating thrombus, but how to reasonably take out or eliminate the thrombus under the condition of an interventional room is a key problem.
The thrombus removing system adopted in the prior art utilizes a mechanical rotary suction technology to send thrombus out of the body by utilizing the Bernoulli principle through high-speed rotary cutting of a catheter head end tool bit. The method has the advantages that thrombus can be rapidly and efficiently cleared, the real lesions of the blood vessels are exposed from acute to chronic embolism, the long-section stent is prevented from being placed, and the probability of restenosis after operation is reduced; the treatment risk caused by postoperative thrombolysis is avoided, and the hospitalization time of the patient is reduced. However, the cost is high, and it is difficult to avoid a great deal of blood loss at the same time, and it is not possible to thoroughly remove all the thrombus on the vessel wall.
The method has the advantages of low cost and relatively thorough thrombus removal, but the method has the advantages of high requirements on the operation technique and slow recovery, more complications and the like of the open operation.
Disclosure of Invention
Aiming at the technical problems which need to be solved in the prior art, the invention provides a vascular sheath system capable of minimally invasive thrombus extraction through a Fogarty balloon, which utilizes a vascular sheath combined with a Fogarty balloon thrombus extraction catheter to pull thrombus out of a body through the vascular sheath under the minimally invasive condition, and not only utilizes the characteristics of definite, efficient, thorough and low-cost thrombus recovery of the Fogarty balloon thrombus extraction catheter, but also ensures that thrombus recovery is completed under the minimally invasive condition, and has definite effect, less bleeding and quick recovery.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The vascular sheath system capable of minimally invasive thrombus removal through the Fogarty balloon comprises a bendable 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 in matched connection 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, a second balloon is arranged around the outer side of the sheath wall of the outlet end of the vascular sheath, a third balloon is arranged around the outer side of the sheath wall of the vascular sheath between the first balloon and the second balloon, and the inner side surfaces of the second balloon and the third balloon are fixed on the outer side of the sheath wall of the vascular sheath; 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 balloon, the second balloon and the third balloon correspondingly, and inlets of the first channel, the second channel and the third channel are led out from the side face 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 channel is inflated, the first balloon I and the first balloon II seal the inner cavity of the inlet end of the vascular sheath.
Further preferably, after the second balloon is inflated through the second channel, an end of the second balloon extends out of an 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 the outer diameter 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 filled, the sheath core penetrates through the space between the first balloon I and the first balloon II.
The third balloon is positioned at the middle position of the vascular sheath.
The diameter of the third balloon after filling is larger than 20mm.
One end of the sheath core is of a conical structure extending 20-40mm out of the outlet end of the vascular sheath (1), and the other end extends out of the inlet end of the vascular sheath by more than 10mm.
The vascular sheath is made of polyamide-6, a hydrophilic coating is coated on the inner side of the vascular sheath, and the sheath core is made of a polyethylene and barium sulfate composite material.
The vessel sheath has an inner diameter 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 taking by using the Fogarty sacculus catheter under the condition of no incision in intervention, compared with an intervention operation, the thrombus taking is more thorough, and compared with a traditional operation, complications caused by the incision operation are avoided; 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, the condition that the thrombus falls off to the lower limb at the other side can not occur, and the effect of thrombolysis is better than that of catheterization.
B. the invention ensures the thrombus taking effect, and if the lesion blood vessel contains a thrombus plug and has plaque stenosis or interlayer which affects the blood flow at the far end, the invention can be used for carrying out the balloon expansion in the blood vessel and the stent implantation operation by taking the blood vessel sheath as a channel, and further intervening in the cavity treatment;
C. Compared with the prior intravascular thrombus absorbing system, the cost of the vascular sheath system has obvious price advantage, the price of the vascular sheath system is 50 percent of that of the thrombus absorbing system, and the vascular sheath system is easier to popularize; can be applied to arterial thrombosis, venous thrombosis and thrombosis in the stent after the stent is put into the stent; meanwhile, compared with the cut and thrombus removal operation, the invention can realize local anesthesia treatment and save a great deal of medical resources.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the embodiments will be briefly described, and it will be apparent that the drawings in the following description are some embodiments of the present invention and that other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a vascular sheath system according to the present invention;
FIG. 2 is a schematic view of the filling state of each balloon on a vascular sheath according to the present invention;
FIG. 3 is a schematic view of the structure of the vascular sheath in the state of the sheath outlet;
FIG. 4 is a schematic view of the structure of the vessel sheath in a state of filling the sheath outlet;
FIG. 5 is a schematic view showing the structure of the middle part of the sheath of the vascular sheath in the state of being put in;
FIG. 6 is a schematic view showing the structure of the vessel sheath in a state of filling the middle part of the sheath;
FIG. 7 is a schematic view of the structure of a first balloon in an open state of the sheath inlet portion of a vascular sheath;
FIG. 8 is a schematic view of a configuration of a first balloon in a inflated state of a sheath inlet portion of a vascular sheath;
Fig. 9 a-9 i are schematic views of the operation of various stages in a particular method of operation.
Reference numerals illustrate:
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-a sheath lumen connecting channel; 20-filling gas.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and fig. 2, the vascular sheath system capable of minimally invasive thrombus removal through 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 the outlet end and the inlet end of the vascular sheath 1 and is in matched connection with the vascular sheath 1 in the length direction, a first balloon 3 is arranged in the inlet end of the vascular sheath 1, a second balloon 4 is arranged around the outer side of the sheath wall of the outlet end of the vascular sheath 1, a third balloon 5 is also arranged around the outer side of the sheath wall of the vascular sheath 1 between the first balloon 3 and the second balloon 4, and the inner side surfaces of the second balloon 4 and the third balloon 5 are fixed on the outer side of the sheath wall of the vascular sheath 1; the sheath wall of the vascular 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, and the inlets of the first channel 6, the second channel 7 and the third channel 8 are led out from the side face of the sheath wall close to the inlet end of the vascular sheath 1, and each balloon can be in a filling state in a mode of injecting gas and the like. The vessel sheath and the sheath core are made of flexible materials, and the sheath core plays a good radial supporting role on the vessel sheath.
In order to leave sufficient room for the Fogarty balloon to retrieve thrombus, the vessel sheath in the present invention has a diameter of greater than 18F.
The first balloon 3 includes 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 by the air injected through the first channel 6, the first balloon I31 and the first balloon II32 seal the inner cavity of the inlet end of the vascular 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 vascular sheath.
In order to fully enter the thrombus into the vascular sheath, after the second balloon 4 is inflated through the second channel 7, the end of the second balloon 4 protrudes out of the outlet end face of the vascular sheath 1, as shown in fig. 3 and 4.
As shown in fig. 1, the invention further provides a tube seat 9 at the inlet end of the vascular sheath 1, the outer diameter of the tube seat 8 is slightly larger than the outer diameter of the rest of the vascular sheath 1, the first balloon I31 and the first balloon II32 are positioned in the tube seat 9, and when the first balloon I31 and the first balloon II32 are not filled, 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 has a diameter greater than 20mm after inflation.
Compared with the common vascular sheath core, the vascular sheath core adopted in the invention is shorter, so that the affected side thrombus is disturbed as little as possible, namely, one end of the sheath core adopts a conical structure which extends out of the outlet end of the vascular sheath 1 by 20-40mm, and the other end extends out of the inlet end of the vascular sheath 1 by more than 10mm, wherein the shorter the conical structure is, the less the influence on the forward thrombus is caused, but the risk coefficient of the vascular sheath is increased, and the proper size is particularly important. The vascular sheath and the sheath core are good in flexibility, and can realize the mountain turning to the blood vessel of the contralateral lower limb through the femoral artery puncture of the healthy lateral lower limb, but the sheath tube, particularly the sheath tube opening, is good in longitudinal supporting force so as to be beneficial to recovering thrombus. In the invention, the vessel sheath is preferably made of polyamide-6, the inner side surface of the vessel 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 vascular sheath is provided with balloons at the sheath outlet, the sheath inlet, and the intermediate positions, respectively, and states when the sheath core is inserted into the vascular sheath and when the balloons on the vascular sheath are inflated are expressed.
As shown in fig. 3 and 4, the sheath outlet of the vascular sheath comprises a conventional sheath mouth, a layer of balloon material is added around the sheath mouth to form a second balloon, whether the second balloon is filled with gas 20 or not can be pressurized by reserving a three-way catheter at the sheath inlet in a pressurizing mode, once the pressure is applied, the second balloon surrounds the periphery of the vascular sheath, so that the sheath outlet is tightly attached to the peripheral blood vessel, and the situation that the thrombus is extruded outside the sheath outlet during thrombus recovery is avoided.
As shown in fig. 5 and 6, the sheath inlet of the vascular sheath comprises 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 a second balloon at the sheath outlet and a third balloon in the middle of the vascular sheath. The tube seat structure comprises an inflatable first balloon which is communicated with the first channel, and the first balloon can close the inner cavity of the vascular sheath through the first channel to prevent blood from flowing out.
As shown in fig. 7 and 8, the intermediate special balloon device is a third balloon, the balloon lumen of which is connected by a third channel to a tee tube branching off near the sheath inlet. The third balloon may be sized to fill more than 20mm in diameter and may be secured to the lower abdominal aorta or inferior vena cava when inflated without retracting to the iliac blood vessel.
As shown in fig. 9a to 9i, when performing the minimally invasive surgery, the vascular sheath is placed on the affected part, the blood vessel sheath is introduced by puncture on the healthy side, the blood vessel sheath is smoothly turned over to the opposite side, the outlet of the blood vessel sheath is positioned at the external level of the total ilium, namely the proximal end of the thrombus, the second balloon is positioned on the affected side beyond the riding 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 was used to pass through the vascular sheath and extend beyond the thrombus site;
As shown in fig. 9d, each balloon is inflated;
As shown in fig. 9e, the Fogarty balloon is adjusted in size, thrombus is recovered into the vascular sheath, and finally when the Fogarty balloon enters the vascular sheath, the balloon is slightly loosened, and the recovered balloon enters the vascular sheath;
As shown in fig. 9f, the first balloon at the inlet position of the vascular sheath is loosened, and the thrombus is pulled out;
Referring to fig. 9g, when the thrombus is pulled out of the inlet end of the vascular sheath, the first balloon is refilled to prevent a great deal of blood loss, and then the thrombus is completely pulled out;
see fig. 9h, relaxing the second balloon and the third balloon;
See fig. 9i, finally, the vascular sheath is withdrawn, the puncture point is sutured, and the minimally invasive surgery is completed.
The invention utilizes the vascular sheath to combine with the Fogarty balloon thrombus taking catheter to drag thrombus out of the body through the vascular sheath under the micro-invasion, not only utilizes the characteristics of definite, efficient, thorough and low-cost recovery of thrombus by the Fogarty balloon thrombus taking catheter, but also ensures that the recovery of thrombus is completed under the micro-invasion, and has definite effect, less bleeding and quick recovery.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.
Claims (8)
1. The vascular sheath system capable of minimally invasive thrombus removal through the Fogarty balloon comprises a bendable vascular sheath (1) and a sheath core (2), wherein the sheath core (2) penetrates through the outlet end and the inlet end of the vascular sheath (1) and is connected with the vascular sheath (1) in a matched mode in the length direction, and the vascular sheath system is characterized in that a first balloon (3) is arranged in the inlet end of the vascular sheath (1), a second balloon (4) is arranged around the outer side of the sheath wall of the outlet end of the vascular sheath (1), a third balloon (5) is arranged around the outer side of the sheath wall of the vascular sheath (1) between the first balloon (3) and the second balloon (4), and the inner side faces of the second balloon (4) and the third balloon (5) are fixed on the outer side face of the sheath wall of the vascular sheath (1); the sheath wall of the vascular 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, and each inlet of the first channel (6), the second channel (7) and the third channel (8) is led out from the side surface of the sheath wall close to the inlet end of the vascular sheath (1);
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 the first balloon I (31) and the first balloon II (32) are sealed with the inner cavity of the inlet end of the vascular sheath (1) after the first channel (6) is filled with gas.
2. Vascular sheath system for minimally invasive thrombus removal by means of a Fogarty balloon according to claim 1, characterized in that the end of the second balloon (4) protrudes beyond the outlet end face of the vascular sheath (1) after the inflation of the second balloon (4) by means of the inflation of the second channel (7).
3. Vascular sheath system according to claim 2, characterized in that the inlet end of the vascular sheath (1) is further provided with a tube socket (9), the outer diameter of the tube socket (9) is slightly larger than the outer diameter of the rest of the vascular sheath (1), the first balloon I (31) and the first balloon II (32) are located in the tube socket (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.
4. A vascular sheath system according to any of claims 1-3, wherein the third balloon (5) is located in a central position of the vascular sheath (1) by means of a Fogarty balloon minimally invasive thrombolysis.
5. A vascular sheath system for minimally invasive thrombus retrieval by a Fogarty balloon according to claim 4, wherein the third balloon is greater than 20mm in diameter after inflation.
6. Vascular sheath system according to claim 1, wherein one end of the sheath core (2) is a conical structure extending 20-40mm beyond the outlet end of the vascular sheath (1), and the other end extends more than 10mm beyond the inlet end of the vascular sheath (1).
7. Vascular sheath system allowing minimally invasive thrombus removal by means of Fogarty balloons according to claim 1, characterized in that said vascular sheath (1) is made of polyamide-6 material, the inner side of which is coated with a hydrophilic coating, said sheath core (2) being made of a polyethylene and barium sulphate composite material.
8. Vascular sheath system for minimally invasive thrombus removal by means of a Fogarty balloon according to claim 1, characterized in that the internal diameter of the vascular sheath (1) is greater than 18F.
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| 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 |
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| US7422579B2 (en) * | 2001-05-01 | 2008-09-09 | St. Jude Medical Cardiology Divison, Inc. | Emboli protection devices and related methods of use |
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|---|---|---|---|---|
| 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 |
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