43 results about "Av graft" patented technology

The invention provides a self-sealing arteriovenous graft including a tube having a polymeric inner layer defining a lumen through which blood may flow and an outer textile layer. The outer textile layer is concentrically disposed about the inner layer. Furthermore, an intermediate self-sealing layer is concentrically positioned between the inner and outer layers. The self-sealing layer includes a biocompatible polymer.

It is intended to provide a lactide / epsilon-caprolactone copolymer for a flexible medical implant which has extremely high safety without containing a higher alcohol and is useful for producing a medical implant required to have flexibility such as artificial dura mater or artificial blood vessel. Further, it is intended to provide a method for producing the copolymer, a medical implant and artificial dura mater comprising the copolymer. The invention is directed to a lactide / e-caprolactone copolymer to be used for medical implant application, wherein a molar ratio of lactide to e-caprolactone (lactide / e-caprolactone) is from 40 / 60 to 60 / 40, a weight average molecular weight is 100,000 to 500,000 or less, a higher alcohol component is not contained, and a melting enthalpy of crystal obtained by heat-melting the copolymer to form a molded article is 10 J / g or less.

An intraoperative stent system, comprising an artificial blood vessel portion (4) and a main stent portion (5) sutured together with the artificial blood vessel portion (4); the intraoperative stent system also comprises a side branch stent portion (6), the side branch stent portion (6) transversely extending outward from the artificial blood vessel portion (4) or the main stent portion (5), and connecting to and communicating with the artificial blood vessel portion (4) or the main stent portion (5). The intraoperative stent system saves operation time and reduces operation difficulty.

A method for preventing stenosis and thrombosis of an AV graft is disclosed. An essential fatty acid emulsion is administered to the patient through the AV graft, preferably during dialysis, whereby the anti-inflammatory properties of the essential fatty acid emulsion prevent complications typical of AV grafts.

The invention discloses a suturing-free stent artificial blood vessel, a conveying device thereof and a coincident retaining ring, relates to the technical field of medical instruments and aims to solve the problems of blood leaking and complication caused by the fact that existing artificial blood vessels are difficult in coinciding and too long in coinciding time. The suturing-free stent artificial blood vessel comprises an artificial blood vessel body composed of a line-forming portion artificial blood vessel and a non-line-forming portion artificial blood vessel which are connected sequentially, and an elastic metal stent is arranged on the non-line-forming portion artificial blood vessel; a suturing-free connecting portion is arranged on the line-forming portion artificial blood vessel and composed of a coating member and a supporting sleeve ring, the coating member is positioned on the outer side of the line-forming portion artificial blood vessel and coaxially and seamlessly connected with the same, and the supporting sleeve ring is put between the coating member and the line-forming portion artificial blood vessel.

The invention discloses a suturing-free blood vessel graft and a supporting sleeve ring, relates to the technical field of medical instruments and aims to solve the technical problem that existing suturing-free sleeve rings are prone to causing operation difficulty (high diameter selectivity) or blood leaking (low diameter selectivity) due to fixed diameter. The suturing-free blood vessel graft comprises an artificial blood vessel body, a suturing-free connecting portion is arranged on the artificial blood vessel body and composed of a coating member and the supporting sleeve ring, the coating member is positioned on the outer side of the artificial blood vessel body and coaxially and seamlessly connected with the same, and the supporting sleeve ring is put between the coating member and the artificial blood vessel body; an adjusting portion is arranged on the supporting sleeve ring, part of the adjusting portion is exposed out of the coating member, and the adjusting portion is used for adjusting and fixing diameter of the supporting sleeve ring to enable the suturing-free connecting portion of the suturing-free blood vessel graft to be adjustable in diameter.

The invention relates to a suture-free integrated branch covered stent blood vessel, and belongs to the technical field of medical instruments. The suture-free integrated branch covered stent blood vessel comprises an artificial blood vessel, a membrane-covered stent and a pressure re assembly; The distal end of the artificial blood vessel is connected with the proximal end of the covered stent. The pressure ring assembly comprises a pressure ring and a fixing member. The outer wall of the artificial blood vessel is provided with a fixing part. One end of the pressure ring is movably connectedto the fixing member so that the pressure ring can change the position of the pressure ring relative to the artificial blood vessel around the fixing member. The suture-free integrated branch coveredstent blood vessel use that elasticity of the compression ring to clamp and seal the anastomotic stoma and avoid the anastomotic stoma suture method in artificial blood vessel replacement operation,so as to achieve the effect of hemostasis and reducing the operation time.

The invention discloses a biodegradable blood vessel anastomosis device, a special surgical instrument and a using method thereof which are used for the anastomosis between human blood vessels, between artificial blood vessels or between the human blood vessels and artificial blood vessels. The blood vessel anastomosis device is composed of a pair of coaxial first anastomosis ring / wheel and second anastomosis ring / wheel matched with each other; the anastomosis ring / wheel comprises a blood vessel support bracket, a clamping bracket, and anastomosis needles distributed circumferentially around a free end of the blood vessel support bracket. The anastomosis surface of the blood vessel anastomosis device is of a coaxial geometric structure, thus the blood vessel anastomosis device is high in anastomosis effect and wide in anastomosis area, improves the success rate of operations and reduces the collapse phenomenon of anastomosis positions. The blood vessel anastomosis is prepared by using biodegradable materials, through a reasonable structural design, the blood vessel anastomosis ring / wheel can be degraded by the human body after operations, and during the degradation process, a relatively complete structure is maintained, an appropriate effective support time is maintained after operations according to the conditions of different blood vessels to maintain the function of the blood vessel anastomosis ring / wheel, and the foreign body residual risk caused by the traditional mechanical anastomosis method is avoided. According to the special instrument, the clamping and anastomosis functions are integrated, the operation process is simplified, and the operation efficiency is improved.

The invention provides an improved support artificial blood vessel. The improved support artificial blood vessel comprises a dacron artificial blood vessel body and a support artificial blood vessel body. One end of the dacron artificial blood vessel body is communicated with one end of the support artificial blood vessel body. The pipe wall of the dacron artificial blood vessel body is communicated with a branch artificial blood vessel body. The side, close to the support artificial blood vessel body, of the outer pipe wall of the branch artificial blood vessel body is 1 cm away from the support artificial blood vessel body. A W-shaped titanium-nickel alloy metal support with a self-expansion function is fixed to the inner surface of the support artificial blood vessel body. A W-shaped titanium-nickel alloy metal support with a self-expansion function is fixed to the inner surface of the branch artificial blood vessel body. When the improved support artificial blood vessel with the branch is used for conducting DeBakey I type aortic dissection treatment, the effect of replacing the aortic dissection without replacing the branch of the aortic dissection can be achieved, surgery operation can be simplified, and the improved support artificial blood vessel is easy to master and has important clinical application value.

The invention provides a composite type intraoperative stent system which comprises an artificial vessel capable of being anastomosed, a linear control released left subclavian artery covered stent vessel and a balloon-expandable type descending aorta covered stent artificial vessel; the artificial vessel is connected with the balloon-expandable type descending aorta covered stent artificial vessel; the left subclavian artery covered stent vessel is arranged at the connecting part of the artificial vessel and the balloon-expandable type descending aorta covered stent artificial vessel and communicates with the artificial vessel and the balloon-expandable type descending aorta covered stent artificial vessel; and the balloon-expandable type descending aorta covered stent artificial vessel is internally provided with a balloon. The composite type intraoperative stent system can shorten the operation time, reduces influence of deep hypothermic circulatory arrest on the coagulation function of a patient, lowers the difficulties of vascular anatomy and anastomosis and increase the success rate of an operation.

The invention discloses an arcus aortae stent graft vascular structure for the department of surgery. The structure comprises a first artificial blood vessel, a connecting ring and a second artificial blood vessel. The connecting ring is embedded into the exterior of one side of the first artificial blood vessel. A reflection portion is reserved at the connecting ring and the end of the first artificial blood vessel. The reflection portion is turned outwards to wrap the connecting ring to form the compound end. One end of the second artificial blood vessel is embedded at the compound end to form a connecting portion. A threading hole is formed in the peripheral side wall of the connecting ring. A first branch and a second branch are arranged on the periphery of the first artificial blood vessel. The first branch comprises a first forked portion for being connected with an innominate artery and a second forked portion for being connected with the left common carotid artery. The second branch is connected with a pump blood vessel and then disconnected with the left subclavian artery. The second artificial blood vessel is the stent graft artificial blood vessel, and the far end of the second artificial blood vessel is used for being connected with the thoracic descending aorta.

The invention discloses a simple quick-connection structure for an artificial blood vessel. The simple quick-connection structure for the artificial blood vessel comprises the artificial blood vessel, one side of the artificial blood vessel is nested with a connecting ring and two or more pairs or rows of thread penetrating holes are formed in the side wall in the circumferential direction of the connecting ring. The diameter of the artificial blood vessel is smaller than or equal to 30 mm. The diameter of the connecting ring is smaller than or equal to 30 mm. The diameter of the connecting ring is equal to that of the artificial blood vessel. The two or more pairs of thread penetrating holes are evenly formed in the side wall in the circumferential direction of the connecting ring so as to be beneficial to firmly connecting the broken ends of two artificial blood vessels. The width of the connecting ring ranges from 10 mm to 35 mm. The two or more rows of thread penetrating holes are formed in the connecting ring, and two or more thread penetrating holes are in one row.

The invention discloses an anastomosis fastening ring for main arteries and an artificial blood vessel assembly with the anastomosis fastening ring, and relates to the technical field of medical apparatus and instruments. The anastomosis fastening ring for the main arteries comprises a fastening ring body. The fastening ring body is of an annular opening structure, and first instrument operating holes are respectively formed in two sides of an opening in the fastening ring body; a first fastener is arranged at one tail end of the fastening ring body, a second fastener is arranged at the other tail end of the fastening ring body, and the first fastener and the second fastener are locked with each other in an insertion manner, so that the anastomosis fastening ring for the main arteries can be used for sleeving sleeve rings of artificial blood vessels; the diameter of the anastomosis fastening ring for the main arteries can be decreased along with increase of the quantity of mutual insertion locking overlapped portions of the first fastener and the second fastener; the diameter of the anastomosis fastening ring for the main arteries can be increased along with decrease of the quantity of the mutual insertion locking overlapped portions of the first fastener and the second fastener. The anastomosis fastening ring and the artificial blood vessel assembly have the advantage that the technical problems of inconvenience in operation and difficulty in adjustment when existing sleeve rings of existing artificial blood vessels are fixedly tied off by existing silk sutures (or silk ribbons) can be solved by the aid of the anastomosis fastening ring and the artificial blood vessel assembly.

The invention discloses an artificial blood vessel and covered stent connection mechanism for an aortic operation. The connection mechanism comprises an artificial blood vessel and a covered stent, the artificial blood vessel and the covered stent are connected into an integrated structure through an inner ring made of a hard material, the outer side of the inner ring is sleeved with a fixing ring, and the difference of the radius of the inner circle of the fixing ring and the radius of the outer circle of the inner ring is equal to or smaller than the wall thickness of the blood vessel so that the blood vessel can be clamped between the inner circle of the fixing ring and the outer circle of the inner ring, and the step of sewing or binding is omitted. Besides, connection is more stable, more reliable and quicker, bleeding complications are not likely to happen, and the risk of operations is effectively reduced.

The invention relates to a method for preparing a live animal eye model by a retinal vein artificial blood vessel bypass operation. The method comprises the following steps of: selecting experimental pigs, dogs, sheep and monkeys, artificially causing branch retinal vein occlusion in advance and then performing vitrectomy; setting a point on each of blood vessels on two sides of the occlusion as a starting point and an end point of a vascular bypass respectively, designing a bending curvature, length and acute end angles by taking a macromolecular material microtubule as an artificial blood vessel; and after the artificial blood vessel is introduced into an eye, puncturing vessel walls at the position of the set starting point and the set end point by two acute ends and inserting the two acute ends into the artificial blood vessel sequentially, wherein punctured pores are automatically closed or are promoted to be closed by performing electric coagulation on the blood vessel if necessary. By establishing the live animal eye model used for the research on the time, the effect and the security of curing the branch retinal vein occlusion by the retinal vein artificial blood vessel bypass operation, the method lays a research foundation for developing a new clinical surgery method.

The invention provides an artificial blood vessel with a stent and application of the artificial blood vessel in Stanford A type aortic dissection clinical operations. Treatment can be simplified, andthe operation risk can be reduced. The length of the blood vessel is 15-20 cm, and the blood vessel is made of a dacron artificial blood vessel, wherein the near end is a pure dacron artificial bloodvessel body, the length is 5-10 cm, the length of the far end is 10 cm, and the surface of the far end is a dacron artificial blood vessel body, the interior of the far end is provided with the W-shaped titanium-nickel alloy metal stent with a self-expansion function, and the stent is fixed in a sewn mode; the diameter of the artificial blood vessel with the stent is 24-30 mm. During the operations, artificial blood vessels, with different diameters, provided with stents are selected according to the inner diameters of the aortas of different patients.

The invention provides an artificial blood vessel valved homograft conduit and a production method thereof. The artificial blood vessel valved homograft conduit comprises an artificial blood vessel and a valve arranged in the artificial blood vessel and used for blocking, wherein the valve is in a skirt state extending in the central line direction of the artificial blood vessel; the valve is prepared through sewing of a tubular blood vessel material to the artificial blood vessel, one end of the blood vessel material is connected to the artificial blood vessel in the radial direction of the artificial blood vessel, and the other end is a free end; the whole vessel body part of the blood vessel material is sewn on the artificial blood vessel through multiple sewing threads, and the sewingthreads are parallel to the vessel body of the blood vessel material in the radial direction and arranged at intervals in the peripheral direction of the vessel body of the blood vessel material. Theartificial blood vessel valved homograft conduit is obtained through sewing of a high polymer material and the artificial blood vessel, the valved homograft conduit can be implanted when the artificial blood vessel is implanted into a human body, the process is simple, and the biocompatibility is good.

The invention relates to an individualized branch stent arch reconstruction artificial blood vessel, which relates to an artificial blood vessel. The invention solves the technical problems of high technical requirements, easy bleeding, difficult hemostasis, long operation time and high operation risk in the prior total arch replacement operation. The invention comprises an aortic stent vessel (1), The descending aortic stent blood vessel (2) of the aortic stent blood vessel (1) is sequentially formed into an arch aortic stent blood vessel (3) and an ascending aortic stent blood vessel (4) ina proximal direction, and a plurality of arch partial branches including a branch stent blood vessel (5) are emitted from the arch aortic stent blood vessel (3). The descending aortic stent blood vessel (2), the arch part and the ascending part of the descending aortic stent are integrally formed, and the deep hypothermia circulatory arrest time can be shortened from more than 20 minutes to less than 5 minutes without anastomosis, thereby greatly reducing the risk of spinal cord ischemia and paraplegia. The invention is used for aortic arch replacement surgery.

The invention provides a method for constructing engineering arterial blood vessel in vivo by taking melt-spinning fiber as a skeleton. The method comprises the following steps: firstly preparing a melt spinning and medical silica gel tube composite mandrel, and then preparing the in-vivo engineering arterial blood vessel taking melt-spinning fiber as a skeleton by taking subcutaneous part of an animal as a bioreactor; the specific steps are as follows: 1) preparing the melt spinning and medical silica gel tube composite mandrel; 2) preparing the in-vivo engineering arterial blood vessel taking melt-spinning fiber as a skeleton by taking subcutaneous part of an animal as a bioreactor; and 3) performing in-situ transplanting of the in-vivo engineering arterial blood vessel so as to replace lesion blood vessels. The method has the advantages that the in-vivo engineering arterial blood vessel has good biocompatibility, all the components are originated from autologous tissues, and therefore, the artificial blood vessel is non-toxic, free from immunogenicity, and incapable of causing inflammation; due to the existence of melt spinning fiber, the prepared in-vivo engineering blood vessel has good mechanical strength, tenacity and compliance, and is suitable for surgical sewing operation.

The present invention discloses an artificial blood vessel stent, which can minimize the diameter of a stent insertion device because the diameter (profile) thereof is uniform and small over the entire length upon being loaded, and accordingly can be easily placed in a branched portion of a blood vessel using a puncture method. The artificial blood vessel stent comprises: (I) an artificial blood vessel body 1 in which the upper end part is formed with a single cylindrical shape or partially cylindrical shape and the lower end part is divided into two small cylindrical shapes or partially cylindrical shapes having different lengths; (II) a cylindrical first stent member 2 connected to the upper end of the artificial blood vessel body and being expandable; (III) a cylindrical second stent member 3 connected to the shorter side of the lower end part of the artificial blood vessel body and being expandable; and (IV) a cylindrical third stent member 4 inserted into the longer side of the lower end part of the artificial blood vessel body, so that the upper end surface coincides with the lower end surface of the second stent member, and being expandable.

The invention provides a small-diameter artificial vascular graft preparation method based on electrostatic spinning. The method includes: preparing a polymer spinning solution; filling a spinning solution injection device with the prepared spinning solution and regulating a spinning solution flow speed; selecting a corresponding receiving bar according to preparation requirements and mounting the receiving bar on a rotary receiving device; adjusting a receiving distance; enabling the receiving bar to ground, turning on a high-voltage static generator to regulate static spinning voltage, and providing a high field between a nozzle and the receiving bar through a high-voltage power source; powering off after preparation is completed, demounting the receiving bar and taking down an artificial vascular graft prepared by spinning. The small-diameter artificial vascular graft preparation method based on electrostatic spinning is simple, and the inner wall of the artificial vascular graft prepared based on electrostatic spinning is provided with a spiral groove, so that flow wall shear force in the artificial vascular graft can be enhanced, harmful substances deposited in blood on the artificial vascular graft wall are reduced, and long-term graft patency of the artificial vascular graft, particularly the small-diameter artificial vascular graft, is improved.

The invention discloses an artificial vascular conduit with a hemline and a suturing method thereof. The artificial vascular conduit with the hemline comprises an artificial blood vessel; a connectingend of the artificial blood vessel is connected with an artificial valve; a suture ring is connected to the outside of the end of the artificial valve which is connected with the artificial blood vessel; and a hemline is connected with an outer ring surface of the suture ring. The artificial vascular conduit with the hemline disclosed by the invention is a combination of the artificial blood vessel, the artificial valve, the suture ring and the hemline. In the process of using, when the artificial vascular conduit with the hemline is being sutured with an aortic annulus, the artificial vascular conduit is capable of reducing the risk of bleeding and oozing of blood along the suture line of the suture ring and the aortic annulus, thereby facilitating improvement of success rate of a wholeoperation; and moreover, the whole suturing process is easy and convenient to operate, and performance of the suture operation is facilitated.

The invention relates to an intra-operative rapid blood vessel butt-joint assisting device which comprises a lining ring and long-rod diameter expanding pliers. The lining ring is formed by bending a long-strip-shaped sheet, one end of the long-strip-shaped sheet is provided with a clamp spring, the other end of the long-strip-shaped sheet is provided with multiple clamping holes, and the clamp spring is inserted into the clamping holes to fix the diameter of the lining ring; the outer wall of the lining ring is provided with an upper groove and a lower groove; the head end of the long-rod diameter expanding pliers is provided with two rows of protrusions, and the lining ring is arranged between the two rows of the protrusions to feed the blood vessel and prevent slipping; a plier handle on one side is fixedly provided with a scale metering panel, the corresponding portion of a plier handle on the other side is fixedly provided with diameter reading lines, and the scale metering panel is provided with an anti-slip clamp hoop which can slide along the scale metering panel, so that excessive pressing and holding are prevented. According to the intra-operative rapid blood vessel butt-joint assisting device, butt-joint of the self-blood vessel and the artificial blood vessel can be changed into a binding fixing mode from a suture anastomosing mode, the blood vessel butt-joint operation time and the intra-operative circulatory arrest time can be significantly shortened, the operation difficulty is lowered, anastomotic bleeding and postoperative complications are reduced, and increasing of the survival rate of a patient and improving of the postoperative recovery quality are facilitated.

The invention discloses a built-in device for an individualized branch stent type arch part reconstructed artificial blood vessel and relates to an artificial blood vessel. The built-in device aims atsolving the problems of large bleeding amount, long deep low-temperature circulation stopping time, possible spinal cord damage and the like in an operation process of a patient due to the fact thatexisting full arch replacement operations cannot achieve precise control over bleeding of an arch part and a descending operation field, so that the operation death rate and the complication rate arehigh. The device comprises hard arch parts (20), wherein the hard arch parts (20) are arc-shaped pipelines identical in pipe diameter, and the curvature radii of the hard arch parts are identical or the curvature radii gradually decrease from a proximal end to a distal end; a plurality of branch windows and annular dents (24) are formed in the hard arch parts (20), and the hard arch parts (20) aremounted in an arch part aortic stent blood vessel section of the individualized branch stent type arch part reconstructed artificial blood vessel (3). The device is used for an aortic arch replacement operation.

The invention relates to a method for manufacturing an artificial vessel bracket, in particular a compound artificial small vessel bracket. The compound artificial small vessel bracket is characterized in that the small vessel bracket comprises three layers; a net tube-shaped fabric formed by using sutures to weave medical grade poly-p-dioxanone which is strong and elastic is taken as an intermediate elastic layer; a blending sulfuric acid chondroitin-collagen coating is used as an inner layer; an outer layer is wrapped in a matrix fiber layer, then is reinforced with the sutures, and subjected to compound molding; and a degradable small-caliber (4-5 mm) vessel bracket which is similar to a normal vessel in physicochemical and biomechanical property, and matched with the regeneration of self vessel tissue. The planting of seed cells on the inner surface of the vessel bracket to form an in vitro vessel provides theoretical principles and experimental basis for the clinical application of small-caliber tissue engineering vessels in coronary artery surgery and other fields.

The invention discloses an artificial vascular anastomosis trainer and a using method thereof. First, a fixed bracket is made on a workbench board, and two artificial blood vessels are placed on the fixed bracket. Of the two artificial blood vessels, one is a scalable artificial blood vessel, and the other is a conventional artificial blood vessel. One end of the scalable artificial blood vessel is connected with a three-phase joint, the other two ends of the three-phase joint are respectively connected with a piezometer tube and a liquid injection tube, and the mouth at the other end of the scalable artificial blood vessel faces the mouth at one end of the conventional artificial blood vessel. During operation practice, a medical care worker adjusts the scalable artificial blood vessel according to the position of the blood vessel to make the scalable artificial blood vessel and the conventional artificial blood vessel sutured together, and then, the medical care worker injects dye with color into the liquid injection tube. When the dye with color flows through the joint of the scalable artificial blood vessel and the conventional artificial blood vessel, whether there is leakage and whether there is suturing defects can be observed. Therefore, the practice efficiency of medical care workers is improved.

The invention discloses a bypass blood vessel guiding device for internal arteriovenous fistula of an artificial blood vessel. The bypass blood vessel guiding device comprises a guiding syringe and a connector, wherein the rear end of the connector can be connected with the artificial blood vessel; the guiding syringe is fixedly mounted at the front end of the connector; a sleeve head is fixed outside the syringe needle of the guiding syringe; one end of the artificial blood vessel is arranged at the rear end of the connector in a sleeving manner, a fixing ring for fixing the artificial blood vessel on the connector tightly sleeves the artificial blood vessel, a barrier chip for spacing the fixing ring is fixed on the connector, and the end part of the artificial blood vessel and the end part of the fixing ring are separately jointed with the rear side of the barrier chip. The bypass blood vessel guiding device disclosed by the invention is quite simple in structure, reasonable in design and convenient to use and operate; the blood vessel guiding device can be used for forming a tunnel, so that the artificial blood vessel can be smoothly guided from the tunnel, the whole process has small damage to blood vessels and tissues of a patient, the process operation of a surgery is simple, the pain of the patient can be relieved, and the probability of infection of the patient is reduced.

Disclosed herein is a vascular graft and a method for sealing a vascular graft. The method generally includes applying a hydrogel sealant to the vascular graft thereby sealing the graft, wherein the hydrogel sealant is prepared from material selected from the group consisting of plant sourced material, synthetic material, or a combination thereof. In some embodiments, the hydrogel sealant may be prepared from albumin and a crosslinking agent or from poly(ethylene)oxide and a poly(amine).

The invention relates to an oversleeve type aorta anastomosis device, which is characterized by comprising an anastomosis device oversleeve, wherein the oversleeve is cylindrical or round platform shaped; the diameter of the front end of the oversleeve is smaller or is equal to the diameter of the rear part, but the front end is encircled by preset ligature; the middle part of the oversleeve is encircled by a preset ligature; and the rear part of the oversleeve is encircled by a preset ligature and can be open or unopened. The oversleeve type aorta anastomosis device comprises the other strip-shaped anastomosis oversleeve which is frapped and fixed by Velcro; a supporting bracket is cylindrical or round platform shaped; the outer surface and / or the inner surface of the supporting bracket can be provided with a soft incrusting matter; the supporting bracket can be connected with an artificial blood vessel; and the artificial blood vessel can be of a straight tube type, a bent tube type or a branching type, and each type of the artificial blood vessel can be provided with a branch blood vessel. The oversleeve type aorta anastomosis device is additionally provided with a breaking saccule. The oversleeve type aorta anastomosis device is used for the vascular anastomosis of an aorta operation.

A blood vessel puncture plugging sheath with a balloon comprises a sheath tube 1), a transfusion tube (2) and a sheath handle (5) and is further provided with the balloon (3) and a balloon inflating tube (4). The balloon (3) is communicated with the balloon inflating tube (4) and arranged on the periphery of the sheath tube (1), the transfusion tube (2) and the balloon inflating tube (4) are parallelly arranged in the sheath tube (1), the transfusion tube is communicated with the sheath tube, and the transfusion tube and the balloon inflating tube are two independent tubes and are led out from the sheath handle. The blood vessel puncture plugging sheath with the balloon capable of being filled with liquid (gas) is used as a surgical instrument used for surgical operation on artificial blood vessels and the like, and simultaneously has a good visual field and a good hemostasis effect, the sheath tube not only is used as a normal surgical instrument (for transfusion and the like) in the field, but also can be used for hemostasis, the hemostasis effect is good, and blood loss of a patient in surgery can be greatly reduced. The blood vessel puncture plugging sheath is particularly applicable to hemostasis during artificial blood vessel surgery.