TW503101B - Saccate artificial blood vessel - Google Patents

Abstract

The present invention relates to a saccate artificial blood vessel, particularly a saccate artificial blood vessel that is different from a conventional tubular artificial blood vessel and is suitable for a patient with a low blood pressure or is weak and will not loose blood, cause a re-circulation and cause endometrial hyperplasia of vein. The present invention is not related to a structure of a conventional artificial blood vessel where both ends are open and simultaneously of round tube, but is related to a saccate artificial blood vessel where the central section thereof has a suitable caliber, and the two ends thereof are approximately of a semi-spherical shape. The main section of the saccate body has a linear seam at a specified location which matches with the artery and jointly form a blood sampling point that is not easy to be plugged. One wing end of the saccate body can be installed with an aperture which matches with a vein and forms a bridge-type artery-vein fistula, which can provide a convenient way for a patient to receive continuous blood dialysis or drawing.

Description

5031UI V. Description of the invention d)

The present invention is one of the people currently used today. First, cystic artificial blood vessels, in particular, refers to a structure that breaks through the subcutaneous and arterial = t tube, and enables the artificial blood vessel to be implanted into the patient into a bridge-type dynamic vessel II. The artificial blood vessel coincides with the arteries and veins at the same time, which is medically safe and effective. It is a new invention with more sharp edges than the conventional tubular artificial blood vessel. According to the artificial blood tube, artificial blood tube &, as its name implies, is a simulation of real blood vessels of the human body. The artificial blood vessels have to be used in the mouth for a temporary or short-term treatment. The artificial blood vessels are not equal to the second generation, so that patients can receive necessary medical treatment. Being good is more able to reduce the risk of dimorphism. In addition, the quality of artificial blood vessels is good for artificial blood vessels, and it is also a "safety" factor. Looking at the other segment that is used today is larger =: the segment of the artificial blood vessel is a smaller caliber; ling,-仏 and 疋 is a two-stage artificial with a two-end port (61) (62) ^ ^ ^ The smaller diameter section (6 a) of the artificial blood vessel (6) can be connected with the arterial phase r = (6b) and can be connected with the vein •, which can form a bridge-like movement; = make ;: into / subcutaneous tissue as a long-term 21 i 2 W has the benefit of its medical use, but if it is very weak for the body and the details of the blood vessels, it is more difficult to apply to knowing that the body is very weak = so that there are still some considerations that endanger human safety, that is, it will cause Venous intimal hyperplasia vascular plug. 9. P · (1) Hemorrhage often occurs. (3) Blood pressure and heart, (!) = "There is a phenomenon of recirculation during liquid phase circulation. Often = 2 plugs. (4) Hemodialysis, α Danggong needs surgical repair. The inventor of the present invention is engaged in a medical bed In practice, in view of the professionals who are familiar with the artificial two spears, there is still a shortage of use in the working and blood officers of Pro and Madam.

Page 4 503101 V. Description of the invention (2) Defects were researched, and the invention was finally developed through research and development. The reasons are: The main purpose of the invention is to provide a sac-like artificial blood vessel, which uses the special structure and material of artificial blood vessels. Together with the arterial wall of the human body, it forms a pumping and blood transfusion point that is not easy to embolize, has fewer side effects, and is convenient to use, in order to facilitate the long-term hemodialysis and other medical operations, and can maintain better medical quality. Another main object of the present invention is to provide a sac-like vascular prosthesis. The sac-like vascular prosthesis is not a flexible linear pipe body, but a flexible and plastic body. A proper-caliber tube body has wing ends that are almost hemispheres at both ends, and a slit is provided at the middle part of the capsule, which can be connected with the artery by this slit. Yet another main object of the present invention is to provide a sac-like prosthetic blood vessel. The sac-like prosthetic blood vessel is provided with a slit at the middle portion, and a through hole is opened at one wing end of the capsule. The slit can coincide with an artery. Connection, the through hole can be anastomosed with the vein, enough to form a bridge-type arteriovenous repeat tube. Yet another main object of the present invention is to provide a sac-like prosthetic blood vessel, which has a slit and an artery, and a through-hole and a vein, which form an arteriovenous tube. After the formation of hyperplasia, the repeated tube naturally becomes an artificial blood vessel connected with the dynamic solitary. Regarding the specific structure according to which the present invention is implemented to achieve the foregoing objects, detailed description is given below with reference to the drawings. Please refer to the first figure, which is a structural diagram of a sac-like vascular prosthesis according to the present invention. The vascular prosthesis is a sac (1) with a proper volume. The sac (1) central main section (1a) A pipe body with a proper caliber has two hemisphere-shaped wing ends (1 b) (1 c) at both ends of the main section (1 a), and the main section of the capsule (1)

503101 V. Description of the invention (3) '-The part (la) is provided with a slit (n) having an appropriate length, and the lips (12) on both sides of the slit (ιι) can be matched with the artery. It can be seen from the first figure that the cystic prosthesis of the present invention is completely different from the conventional two-segment prosthesis (6) shown in the tenth figure. Please refer to the second figure for another embodiment of the saccular prosthesis of the present invention. The artificial blood vessel is provided with a slit (20) in the main section (2a) of the capsule (2), and the slit (21) is still on both sides of the lips (22), and can also be located on one of the wing ends (2b) of the capsule (2) ) Or (2c) is provided with a circular through hole (23), and the lip (2 4) around the through hole (23) can coincide with the vein. The second figure also shows that the cystic artificial blood vessel of the present invention and It is known that the two-stage artificial blood vessel (6) shown in the tenth figure is also completely different. The capsule body (丨) of the cystic artificial blood vessel of the present invention can be used with the lips (12) of the slit (丨 丨) to communicate with The arteries (3) are anastomosed. As shown in the third figure, after the capsule (1) and the arteries (3) are anastomosed with each other, the arteries (3) are connected by the connectivity of the slit () [1). The blood can flow from the anterior segment (3 丨) into the capsule (丨), and then from the capsule (1) to the posterior segment of the artery (32) and circulate to the human body. In order to make it easier for your examiner to understand the application of the article of the present invention, examples are given below Description If the cystic prosthesis coincides with the human artery, please coordinate with the fourth, fifth, and sixth figures at the same time. If the total length of the cystic prosthesis is 27 mm, the main segment (ia) in the middle of the sac is 20 mm, and the main segment ( When the inner diameter of la) is about 7 mm, the radius of the hemispherical two wing ends (lb) and (ic) is 3.5mm each, and the slit (U) of the main section (ia) can be 20mm long. The straight crack 'will cut a 20 mm long human artery and the mouth (1 2) of the slit to match the state as shown in the fourth figure. When the blood is in the sac graft (1) and the artery (3 ), The arterial wall body (3a) will be enlarged to be closer to or near the center of the main segment (la) due to blood pressure.

503101 V. Description of the invention (4) 丨 Large-caliber circular state, that is, as shown in the fifth figure, and (1) is close to the slit (in 毐, (3) and artificial blood vessel I, as shown in the sixth figure) As can be seen from the fifth figure, the combined state of the main section can form a difficult to embolize, less side effects, and the second (a) and arterial wall (33) can be used for medical treatment such as long-term hemodialysis. Pumping and blood transfusion points have better medical quality for the blood vessels: Please use the two capsules (1) which are implanted into the subcutaneous group of the human body. The cystic artificial blood can be combined as the fifth. The dry skin in the figure is close to the arteries (3) and 1 blood spot, which can provide patients with easy access to the blood test plug. If a cystic artificial blood vessel is used, a bridge-shaped arteriovenous is formed. Repeated tube can be implanted as shown in Figure 9 as shown in Figure 9 and veins (4) and (2). When the capsule can provide the patient with a long-term needling needle, and it is knitted (5), the capsule (2) I: it for hemodialysis. In particular, it is different from Xi Xuan's blood drawn body (2), which can be formed naturally. ι type does not need surgery =: bright cystic prosthetic blood vessels τ suitable for months ☆ low blood pressure or weakness cysts π) the use of an anastomosis with the artery (3) ^ t action :: (3), venous ⑷ Together, it constitutes a bridge-type dynamic and static Λ 'tube I hyperplasia phenomenon. The cystic prosthetic vessel anastomosis with arteries alone has no venous intima 2 · No stealing blood. 503101 V. Description of the invention (5) 3. No recycling. 4. The arteriovenous tube-shaped capsule (2) will naturally become the type of capsule (1) after the formation of venous intimal hyperplasia. Based on the foregoing, the present invention is different in structure from the conventional artificial blood vessel in terms of structure, and is superior to the conventional artificial blood vessel in use efficiency. It obviously has industrial application value. To this end, an application for an invention was filed. I benefit the patient.

Page 8 503101 Brief description of the drawings The first picture: a three-dimensional structure diagram of the present invention. The second figure is a three-dimensional structure diagram of another embodiment of the present invention. The third figure: a schematic cross-sectional view of the anastomosis of the sac-like vascular prosthesis with the artery. The fourth picture is a three-dimensional view of the anastomosis of the sac-like vascular prosthesis. Fifth figure: is a schematic cross-sectional view of the fourth section A-A. Figure 6: A schematic cross-sectional view of Figure 4B. Figure 7: A schematic diagram of a sac-like artificial blood vessel implanted into the subcutaneous tissue of the human body and matching the arteries. Figure 8: The three-dimensional schematic diagram of the bridge-shaped arteriovenous tube in which the sac-like prosthesis and the arteries and veins meet together. Figure 9: The side view of a sac-like artificial blood vessel implanted into the human subcutaneous tissue to form a bridge-type arteriovenous tube with the arteries and veins. The tenth figure: the structure diagram of the conventional two-stage circular tubular artificial blood vessel. Drawing number: (1 a) main section (1 1) slit (2) capsule (2b) (2c) wing tip (22) lips (1) capsule (lb) (lc) wing tip (12) Lip (2 a) main section (2 1) seam

503101

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Claims (1)

503101 VI. Application scope 1. A sac-like artificial blood vessel, which is a capsule with a proper volume. The central main section of the capsule is a round tube with a proper caliber. The two sections of the main section form a rough outline. It is a hemispherical wing end with a single slit at the main section of the capsule. 2. A kind of sac-like artificial blood vessel, which is a capsule with an appropriate volume. The central main section of the capsule is a circular tube with an appropriate caliber, and a hemispherical wing is formed at both ends of the main section. The mouth is provided with a slit at the main section of the capsule. The capsule is provided with a through hole at one of the wing ends. The slit is connected with the arteries of the human body, and the through hole is connected with the vein, which is sufficient to form a bridge-type arteriovenous repeater. . 3. The "cystic prosthesis" as described in item 2 of the scope of the patent application, wherein after the formation of the venous intimal hyperplasia, the arteriovenous tube repeatedly forms a cystic prosthesis with only a single opening. Page 11