Far-end protective umbrella system

[0024]The technical solutions of the present invention will be described below in conjunction with the drawings, as will be described, as described herein is an embodiment of the invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0025]In the description of the invention, it is to be described in the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, is merely intended to describe the present invention and simplified description, rather than indicating or implying that the device or component must have a specific orientation. Construct and operation, so it is not understood to be the limitation of the invention. Moreover, the term "first", "second", "third" is only used to describe purposes, and cannot be understood as an indication or implies relative importance.

[0026]In the description of the present invention, it is to be described in that, unless otherwise expressly specified and defined, the term "mount", "connected", "connection" should be broadly understood, for example, may be fixed connection, or detachable Connect, or integrate; it can be mechanical connection, or electrical connection; may be directly connected, or indirectly connected by an intermediate medium, which can be in the interior of the two elements. The specific meaning of the above terms in the present invention will be appreciated to those skilled in the art.

[0027]Such asfigure 1 ,figure 2 ,image 3As shown in the present embodiment, a distal protective umbrella system is provided, including a transport sheath, a vascular distal protector in which the transport sheath is built; the vascular distal protector includes a distal spring 1 in sequentially connected, distal The guidewire 2, the flexible bellows 3 and the proximal guidewire 4 are provided in the flexible bellows 3, which is resistant to hydrolysis filaments in the longitudinal direction of the flexible bellows, which is fixed to the flexible bellows 3, and the distal end The hardness of the guide wire 2 is smaller than the hardness of the proximal guidewire 4, and the outer wall of the flexible bellows 3 is provided with a plurality of annular flexible deployed shrapnel 5 in the longitudinal direction, and the flexible deployment shrapnel 5 is connected to the outer wall of the flexible bellows 3; The flexible bellows 3 outer casing is connected to a tapered basket 6, and the tapered portion of the basket 6 is connected to the distal guide wire 2, and the basket is anywhere with the proximal guide wire 4. The maximum outer diameter of each flexible deployment shrapnel is smaller than the inner diameter of the basket 6 in the corresponding position.

[0028]The present invention provides a remote protective umbrella system, by including a transport sheath, a vascular distal protector in which the transport sheath is included; the vascular distal protector includes a distal spring 1, a distal guide wire 2, flexibility The bellows 3 and the proximal guidewire 4, the flexible bellows 3 is provided with an antlyplified rotary filament in the length of the flexible bellows 3, and the hydrofiber is fixed to the flexible bellows 3, the hardness of the distal guide wire 2 Small than the hardness of the proximal guide wire 4, the outer wall of the flexible bellows 3 is spaced in the longitudinal direction, and the flexible deployment shrapnel 5 is connected to the outer wall of the flexible bellows 3; the flexible bellows 3 jacket There is a tapered basket of a bottom opening, and the tapered shape of the basket 6 is connected to the distal guide wire 2, and the basket is connected to the proximal guidewire 4, each flexible development shrapnel 5 The maximum outer diameter when the expansion is smaller than the inner diameter of the inner diameter of the basket 6 in the corresponding position, can solve excessive thrombosis in the prior art or too large, agglomerate to the narrow range of the basket, easy to cause the basket There is a deformation, affecting the interception effect of the basket, too many large blocks of thrombosis in the basket, will affect the recycling of the basket, and the flexible development shrapnel 5 can be collected by the large block of thrombosis or cutting. , Avoid the narrowness of the large block of thrombosis, can extend the time of the basket in the blood vessel, will not cause the thrombus blockage, and the antifolor can increase the flexible bellows 3 steel, to avoid deformation, to ensure pair The support of the flexible expansion shrapnel 5, and since the flexible bellows 3 is hollow, there is a certain flexibility, it is convenient to pass the corner when the vascular distal protector is in the blood vessel.

[0029]The conveying sheath and antindonation filaments of the present invention are prior art, and the conveying sheath can be selected from the sheath of Shenzhen Lan Medical Technology Co., Ltd., and will not be described again here.

[0030]Specifically, when the basket 6 is expanded, the flexible deployment shrapnel 5 is also expanded. After the thrombus enters the basket, it will pass through a plurality of flexible expansion shrapnel 5, and the volume of thrombus can be hung by the flexible development of the shrapnel 5 or The thrombosis that is cut into small pieces, which will not be accumulated in the tapered in the basket, which can disperse the collected thrombosis, which does not cause the blood vessels, and can extend the blood vessels in the vascular distal protector, which is operational operation. When providing more time, when the vascular distal protector is needed, the proximal guide wire 4 has a basket 6 to incorporate the release sheath, and the flexible deployment shrapnel 5 also presses the tightening of the basket to the flexible bellows. 3 on the outer wall, easy to recover; the antifolor wire can be connected to the integral of the distal guide wire 2 and the proximal guide wire 4, the hardness of the distal guide wire 2 is smaller than the hardness of the proximal guidewire 4, can be used in the distal end A preferred distal guide wire 2, which is easy to operate with a proximal guide 4 having a certain hardness.

[0031]The distal guide wire 2 of the present invention is a tapered wire, and the distal end of the distal guide wire 2 is placed in the distal spring 1, fixed to the distal spring 1, and the proximal end of the distal guide wire 2 passes through the bonding or pressure. The connection is connected to the antifolor wire, and the length of the distal guide wire 2 is 20-50 cm.

[0032]The proximal guidewire 4 of the present invention is a conical shape, and the diameter of the proximal guide wire 4 of the antlyplified spiral filament is 0.20 mm, the proximal guide wire 4 is 0.32-0.39cm; proximal guide wire 4 Connect the laser spot weld and the antlyplified rotary filament, a laser solder joint 13 is formed in the outer wall of the flexible bellows; the proximal guidewire 4 is also coated with polytetrafluoroethylene, which helps improve the grip of the proximal guide wire 4. Holding hands, the length of the proximal guide wire 4 is 180-320 cm.

[0033]The outer wall of the flexible bellows 3 of the present invention is provided with an observation operation port 12 inserted inside the flexible bellows 3, and the distal end of the antlyplified wire and the flexible bellows 3 can be bonded or adopted by the observation operation port 12. The manner is fixed, and the observation operation port 12 may also pass the thermosetting of the thermosetting in the flexible bellows 3 through the observation operation port 12 by the observation operation port 12 through the position of the microscope observation tube 3.

[0034]The distal guide wire 2 and the proximal guide wire 4 of the present invention are not connected, even if the operator accidentally touchs the proximal guide wire 4 in the body, the force does not direct the guide wire 2 and the basket 6 It will be protected from the spiral dispersion to prevent friction or displacement of the relative blood vessel inner wall of the basket 4 to ensure the safety of surgery.

[0035]The antifolor filaments of the present invention are made of single or double wire; the diameter of the distal end of the antifolore wire is smaller than the diameter of the distal end of the distal guide wire thereof, and the diameter of the proximal end of the rotary filament is smaller than The diameter of the adjacent proximal guide wire 4; the diameter of the antifolor is 0.02 to 0.08 mm.

[0036]In some embodiments, each of the flexible deployment shrapnel 5 is deployed, the outer diameter is equal, and each flexible deployment shrapnel 5 can be made into an outer diameter of the deployment.

[0037]In some embodiments, the outer diameter of each flexible deployment shrapnel 5 is insegrade from the distal spring 1 to the proximal guide wire 4, and the corresponding design can be performed according to the actual application.

[0038]In some embodiments, each of the flexible deployment shrapnel 5 is provided with a plurality of reinforcing ribs 7 along the length, and the reinforcing rib 7 can improve the strength of the flexible deployment shrapnel 5.

[0039]The material of the flexible deployment shrapnel 5 of the present invention is a nuckel alloy.

[0040]The reinforcing ribs 7 of the present invention is molded in one integrally to the flexible deployment shrapnel 5, which is convenient for preparation.

[0041]The flexible deployment shrapnel 5 of the present invention is welded to the outer wall of the flexible bellows 3.

[0042]Such asfigure 1 As shown, the present embodiment also includes a developing ring 8, a developing ring 8 ring on a bottom circumference of the basket, and is attached to the distal tag ring 9 on the distal conductive wire 2, which is socket proximally on the proximal guide wire 4. The proximal label ring 10; the developing ring 8 is made of a platinum ruthenium or a gold-plated tungsten wire material, which is placed on the basket 6 by the screen of the basket 6 network, and the distal marker ring 9 and the proximal marker ring. 10 is made of hollow cylindrical sleeves, allocated with a developing material, and the distal marker ring 9 and the proximal label ring 10 can be moved on the distal guide wire 2 and the proximal guide wire 4, respectively, to facilitate the basket 4 into the lesion position. .

[0043]Such asfigure 1 As shown in some embodiments, the distal spring 1 is further provided with a ball cap 11, and the ball cap 11 is at the distal end of the distal spring 1, and the distal spring 1 can be avoided from distal blood vessels.

[0044]It will be noted in that the above embodiments are intended to illustrate the technical solutions of the present invention, not limiting the invention, although the present invention will be described in detail, and those skilled in the art will understand: The technical scheme described in the foregoing embodiments can still be modified, or partially or all of the techniques is equivalent to alternative; and these modifications or replacements do not allow the present invention to take advantage of the present invention. range.