CN115211920A - Artificial blood vessel, anastomosis device and anastomosis method - Google Patents
Artificial blood vessel, anastomosis device and anastomosis method Download PDFInfo
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- CN115211920A CN115211920A CN202210996197.3A CN202210996197A CN115211920A CN 115211920 A CN115211920 A CN 115211920A CN 202210996197 A CN202210996197 A CN 202210996197A CN 115211920 A CN115211920 A CN 115211920A
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 214
- 239000002473 artificial blood Substances 0.000 title claims abstract description 121
- 230000003872 anastomosis Effects 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 18
- 230000002792 vascular Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000009958 sewing Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract 1
- 210000000709 aorta Anatomy 0.000 description 9
- 238000001356 surgical procedure Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 210000003128 head Anatomy 0.000 description 4
- 210000002489 tectorial membrane Anatomy 0.000 description 4
- 208000032843 Hemorrhage Diseases 0.000 description 3
- 208000034158 bleeding Diseases 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 206010056346 Anastomotic haemorrhage Diseases 0.000 description 2
- 241000270923 Hesperostipa comata Species 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000025494 Aortic disease Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/064—Blood vessels with special features to facilitate anastomotic coupling
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
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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
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
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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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1107—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis for blood vessels
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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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1132—End-to-end connections
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Abstract
The invention discloses an artificial blood vessel, which comprises an artificial blood vessel matrix and a skirt edge, wherein the skirt edge is used for realizing the connection of the artificial blood vessel matrix and a self blood vessel. The invention also provides an anastomotic device containing the artificial blood vessel, which further comprises a support component and a covering film, wherein in an initial state, the covering film is sleeved outside the support component, the elastic part is compressed, the support component is in a folded state, after the covering film is completely separated from the support component, under the action of the deformation recovery of the elastic part, the free end of the umbrella ridge rotates towards the direction away from the umbrella framework and drives the everting umbrella to move, at the moment, the support component is in an unfolded state, and the everting umbrella pushes the skirt edge to unfold while unfolding the everting umbrella, and enables the end part of the autologous blood vessel to be everted. The invention also provides an anastomosis method, which utilizes the artificial blood vessel to connect the skirt edge with the eversion part of the autologous blood vessel.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an artificial blood vessel, an anastomosis device and an anastomosis method.
Background
In the field of aortic surgery, the radical treatment of aortic diseases is still the reconstruction of aorta and branch vessels by surgical operation. The blood vessel reconstruction method is a mainstream blood vessel reconstruction method at present, and the blood vessel is used for replacing a diseased blood vessel and anastomoses with a reserved autologous blood vessel through a needle and thread suture technology.
Because the diameter of the aorta is large, when the end-to-end anastomosis of the artificial blood vessel and the autologous blood vessel is carried out, the end part of the artificial blood vessel is butted with the end part of the autologous blood vessel, so that long time is usually consumed, and in addition, due to the difference of suturing experience and level of a doctor, after part of the aorta is anastomosed, blood leakage can occur due to uneven suture density of anastomotic stoma, so that the operation risk of a patient is increased. In order to further shorten the anastomosis time and avoid bleeding of an anastomotic stoma, at present, only the anastomosis and suturing techniques can be improved through continuous training of a doctor, the method has long learning period, different doctors have learning capacity difference, and non-mechanized operation cannot realize the consistency of the anastomosis effect.
Therefore, how to change the current situation that the anastomosis of the artificial blood vessel and the autologous blood vessel is time-consuming and labor-consuming and the operation difficulty of medical workers is large in the aortic surgery in the prior art becomes a problem to be solved urgently by the technicians in the field.
Disclosure of Invention
The invention aims to provide an artificial blood vessel, an anastomosis device and an anastomosis method, which are used for solving the problems in the prior art, reducing the difficulty of anastomosis operation of the artificial blood vessel and an autologous blood vessel and reducing the risk of an aortic surgery.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an artificial blood vessel which comprises an artificial blood vessel base body and a skirt edge, wherein the artificial blood vessel base body is connected with the skirt edge, the artificial blood vessel base body can be communicated with an autologous blood vessel, the skirt edge is of an annular structure, the outer diameter of the skirt edge is larger than the inner diameter of the autologous blood vessel, the skirt edge is sleeved outside the artificial blood vessel base body, the skirt edge can be connected with the autologous blood vessel, and the skirt edge is made of a flexible material.
The invention also provides an artificial blood vessel anastomosis device, which comprises the artificial blood vessel and further comprises:
the supporting assembly comprises an outward-turning umbrella, an umbrella framework and umbrella ridges, the umbrella framework is of an annular structure and is sleeved outside the artificial blood vessel matrix, one end of each umbrella ridge is hinged to the umbrella framework, an elastic part is arranged between the two ends of each umbrella ridge, the number of the umbrella ridges is multiple, the outward-turning umbrella is connected with the multiple umbrella ridges to form an umbrella-shaped structure with an opening, and the outward-turning umbrella is positioned on one side, close to the skirt edge, of each umbrella ridge;
the film covering device comprises a film covering, the film covering is of a hollow cylindrical structure, the film covering is slidably sleeved outside the supporting assembly, when the film covering is sleeved outside the supporting assembly, the free end of the umbrella ridge is close to the artificial blood vessel matrix, and when the film covering is separated from the supporting assembly, the outward-turning umbrella can abut against the skirt edge.
Preferably, the umbrella frame is a split structure and comprises a first half ring and a second half ring, one end of the first half ring is hinged to one end of the second half ring, and the other end of the first half ring is connected with the other end of the second half ring in a clamping mode.
Preferably, the support assembly further comprises a connecting wire, one end of the connecting wire being connected to the first half ring or the second half ring, the other end of the connecting wire being connectable to a vascular delivery element.
Preferably, the connecting lines are made of metal materials, the connecting lines are arranged in parallel to the axis of the artificial blood vessel base body, the number of the connecting lines is two, and the two connecting lines are arranged at two ends of the first half ring or the second half ring respectively.
Preferably, the covering membrane is connected with a pulling strip which extends towards a direction away from the skirt.
Preferably, a plurality of umbrella ridges are uniformly distributed around the axis of the umbrella framework in the circumferential direction, the elastic pieces are twisted springs, and the elastic pieces correspond to the umbrella ridges one to one.
Preferably, the blood vessel conveying element can extend into the artificial blood vessel matrix and can drive the artificial blood vessel matrix, the blood vessel stent and the guiding head to move.
Preferably, the artificial blood vessel anastomosis device further comprises an anastomat, the anastomat comprises a nail seat and a nail bin, the nail bin is movably connected with the nail seat, a suture nail is arranged in the nail bin, and the artificial blood vessel base body can be anastomosed with the autologous blood vessel by the aid of the suture nail.
The invention also provides an artificial blood vessel anastomosis method, which comprises the steps of extending the artificial blood vessel into the autologous blood vessel by using the artificial blood vessel, turning the end part of the autologous blood vessel outwards, and connecting the skirt edge with the turned-out part of the autologous blood vessel so as to realize anastomosis of the artificial blood vessel and the autologous blood vessel.
Compared with the prior art, the invention has the following technical effects:
the artificial blood vessel comprises an artificial blood vessel base body and a skirt edge, and the connection between the artificial blood vessel base body and the autologous blood vessel is realized by utilizing the skirt edge, so that the anastomosis degree of the artificial blood vessel and the autologous blood vessel is effectively improved, the problem of anastomotic bleeding is avoided, and the difficulty of the aortic surgery and the difficulty of anastomosis operation are reduced.
The invention also provides an anastomosis device comprising the artificial blood vessel, wherein in an initial state, a covering film is sleeved outside a support assembly, an elastic part is compressed, the support assembly is in a 'furled' state, the artificial blood vessel is butted with a self blood vessel in working, a skirt edge is made of flexible materials, after the skirt edge is 'furled', the skirt edge extends into the self blood vessel along with an artificial blood vessel base body, then the covering film is slid, the covering film moves towards the direction far away from the self blood vessel, after the covering film is completely separated from the support assembly, under the action force of the elastic part restoring deformation, the free end of an umbrella ridge rotates towards the direction far away from an umbrella framework and drives an everting umbrella to move, at the moment, the support assembly is in a 'spreading' state, the everting umbrella pushes the skirt edge to spread while the everting umbrella is spread, the end part of the self blood vessel is everted to facilitate the connection anastomosis of the skirt edge and the self blood vessel, and after the anastomosis is finished, the support assembly is withdrawn. The artificial blood vessel anastomosis device utilizes the supporting component and the covering membrane, facilitates the end-to-end connection and anastomosis of the artificial blood vessel and the autologous blood vessel, reduces the difficulty of anastomosis operation and reduces the risk of aortic surgery at the same time.
Meanwhile, the invention also provides an anastomosis method, which is characterized in that the artificial blood vessel is extended into the autologous blood vessel by utilizing the artificial blood vessel, the end part of the autologous blood vessel is outwards turned, and the skirt edge is connected with the outwards turned part of the autologous blood vessel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an artificial vascular anastomosis device according to the present invention;
FIG. 2 is a schematic structural view of the artificial vascular anastomosis device of the present invention after the strut assembly is expanded;
FIG. 3 is a schematic structural view of the artificial vascular anastomosis device of the present invention after withdrawal of the supporting members;
FIG. 4 is a schematic side view of the vascular anastomosis device of the present invention after distraction of the support members;
FIG. 5 is a schematic right-side view of the artificial vascular anastomosis device of the present invention;
FIG. 6 is a schematic structural view of an anastomat of the artificial blood vessel anastomosis device;
FIG. 7 is a schematic view of the artificial vascular anastomosis device of the present invention in operation, extending into a native blood vessel;
FIG. 8 is a schematic view illustrating the eversion of a native blood vessel in the operation of the artificial vascular anastomosis device according to the present invention;
FIG. 9 is a schematic view illustrating the completion of anastomosis between an artificial blood vessel and an autologous blood vessel when the artificial blood vessel anastomosis device of the present invention is in operation;
fig. 10 is a schematic structural view of an umbrella frame of the artificial vascular anastomosis device of the present invention.
The artificial blood vessel comprises an artificial blood vessel base body 1, a skirt edge 2, a covering film 3, an outward-turning umbrella 4, an umbrella framework 5, a first half ring 501, a second half ring 502, an umbrella ridge 6, an elastic part 7, a branch blood vessel 8, a connecting line 9, a traction strip 10, a blood vessel conveying element 11, a connecting rod 12, a blood vessel support 13, a guide head 14, a pull ring 15, a nail seat 16, a nail bin 17, a suturing nail 18 and an autologous blood vessel 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention aims to provide an artificial blood vessel, an anastomosis device and an anastomosis method, which are used for solving the problems in the prior art, reducing the difficulty of anastomosis operation of the artificial blood vessel and an autologous blood vessel and reducing the risk of an aortic surgery.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1 to 10, fig. 1 is a schematic structural diagram of an artificial blood vessel anastomosis device of the present invention, fig. 2 is a schematic structural diagram of a support assembly of the artificial blood vessel anastomosis device of the present invention after the support assembly is spread, fig. 3 is a schematic structural diagram of the artificial blood vessel anastomosis device of the present invention after the support assembly is withdrawn, fig. 4 is a schematic side view of the artificial blood vessel anastomosis device of the present invention after the support assembly is spread, fig. 5 is a schematic right view of the artificial blood vessel anastomosis device of the present invention, fig. 6 is a schematic structural diagram of an anastomat of the artificial blood vessel anastomosis device of the present invention, fig. 7 is a schematic structural diagram of an artificial blood vessel anastomosis device of the present invention which is stretched into an autologous blood vessel during operation, fig. 8 is a schematic diagram of the artificial blood vessel which is everted during operation of the artificial blood vessel anastomosis device of the present invention, fig. 9 is a schematic structural diagram of an artificial blood vessel and an autologous blood vessel which are completed during operation of the artificial blood vessel anastomosis device of the present invention, and fig. 10 is a structural diagram of an umbrella frame of the artificial blood vessel anastomosis device of the present invention.
The invention provides an artificial blood vessel which comprises an artificial blood vessel matrix 1 and a skirt edge 2, wherein the artificial blood vessel matrix 1 is connected with the skirt edge 2, the artificial blood vessel matrix 1 can be communicated with a self blood vessel 19, the skirt edge 2 is of an annular structure, the outer diameter of the skirt edge 2 is larger than the inner diameter of the self blood vessel 19, the skirt edge 2 is sleeved outside the artificial blood vessel matrix 1, the skirt edge 2 can be connected with the self blood vessel 19, and the skirt edge 2 is made of a flexible material.
The artificial blood vessel comprises the artificial blood vessel base body 1 and the skirt edge 2, the connection between the artificial blood vessel base body 1 and the self blood vessel 19 is realized by utilizing the skirt edge 2, the anastomosis degree of the artificial blood vessel and the self blood vessel 19 is effectively improved, the problem of anastomotic bleeding is avoided, and the difficulty of aorta surgical operation and the difficulty of anastomosis operation are reduced.
The invention also provides an anastomosis device comprising the artificial blood vessel, which further comprises a support component and a coating film 3, wherein the support component comprises an outward-turning umbrella 4, an umbrella framework 5 and an umbrella ridge 6, the umbrella framework 5 is of an annular structure, the umbrella framework 5 is sleeved outside the artificial blood vessel base body 1, one end of the umbrella ridge 6 is hinged with the umbrella framework 5, an elastic part 7 is arranged between the two ends of the umbrella ridge and the umbrella framework 5, the number of the umbrella ridges 6 is multiple, the outward-turning umbrella 4 is connected with the multiple umbrella ridges 6 to form an umbrella-shaped structure with an opening, and the outward-turning umbrella 4 is positioned on one side of the umbrella ridge 6 close to the skirt edge 2; the tectorial membrane 3 is hollow cylinder column structure, and tectorial membrane 3 slidable suit is in the outside of supporting component, and when tectorial membrane 3 suit was in the outside of supporting component, the free end of umbrella spine 6 was close to artificial blood vessel base member 1 and sets up, and when tectorial membrane 3 and supporting component broke away from, the umbrella 4 that turns up can offset with shirt rim 2.
The artificial blood vessel anastomosis device comprises a support assembly, a covering film 3, an elastic member 7, a flexible member 7 and a flexible member, wherein the support assembly is in a folded state in an initial state, as shown in figure 1, when the artificial blood vessel anastomosis device works, the artificial blood vessel is butted with a self blood vessel 19, a skirt edge 2 is made of a flexible material, after the skirt edge is folded, the skirt edge 2 extends into the self blood vessel 19 along with an artificial blood vessel matrix 1, then the covering film 3 slides to enable the covering film 3 to move towards the direction far away from the self blood vessel 19, after the covering film 3 is completely separated from the support assembly, under the action of the elastic member 7 restoring deformation, the free end of the umbrella ridge 6 rotates towards the direction far away from an umbrella framework 5 and drives an everting umbrella 4 to move, at the moment, the support assembly is in an 'unfolded' state, the everting umbrella 4 pushes the skirt edge 2 to unfold and enables the end of the self blood vessel 19 to be everted at the same time, as shown in figure 8, the connection anastomosis of the umbrella 2 and after the anastomosis is finished, the support assembly is withdrawn, and the umbrella 4 and the umbrella 6 form an umbrella-shaped everted structure with an opening umbrella-shaped ridge structure which is convenient for withdrawing the support assembly. The artificial blood vessel anastomosis device utilizes the supporting component and the covering membrane 3, facilitates the end-to-end connection and anastomosis of the artificial blood vessel and the autologous blood vessel 19, reduces the difficulty of anastomosis operation and reduces the risk of aortic surgery at the same time.
It should be explained here that the vessel stent 13 is connected to the distal contracted segment of the artificial blood vessel base 1, the delivery of the artificial blood vessel and the installation and release of the vessel stent 13 belong to the common general knowledge of those skilled in the art, and similarly, the skirt 2 is made of medical material meeting the requirements of surgical operation, and the materials of other components are reasonably selected to avoid injury to the patient, which is a conventional means of those skilled in the art and will not be described herein again.
Because the artificial blood vessel may have a branch blood vessel 8, the umbrella frame 5 is a split structure, when the supporting component withdraws, the umbrella frame 5 is split to avoid damaging the branch blood vessel 8 of the artificial blood vessel, in this embodiment, the umbrella frame 5 includes a first half ring 501 and a second half ring 502, see fig. 10 in detail, one end of the first half ring 501 is hinged to one end of the second half ring 502, the other end of the first half ring 501 is connected to the other end of the second half ring 502 in a clamping manner, when the umbrella frame 5 needs to be withdrawn, one end of the clamping manner is opened, the first half ring 501 and the second half ring 502 rotate relatively, so that the umbrella frame 5 is taken down smoothly, the structure that the outward-turning umbrella 4 is connected with the umbrella ridge 6 is a non-closed structure with an opening, and meanwhile, the outward-turning umbrella 4 and the umbrella ridge 6 are withdrawn smoothly along with the umbrella frame 5, thereby effectively protecting the branch blood vessel 8 of the artificial blood vessel.
Specifically, the support assembly further comprises a connecting line 9, as shown in fig. 1, one end of the connecting line 9 is connected with the first half ring 501 or the second half ring 502, the other end of the connecting line 9 can be connected with the blood vessel delivery element 11, the connecting line 9 can fix the axial position of the umbrella frame 5, axial sliding dislocation of the support assembly is avoided when the covering film 3 slides, and the working reliability of the support assembly is improved.
In the present embodiment, the connecting lines 9 are made of metal material, so as to improve the structural strength of the connecting lines 9, the connecting lines 9 are disposed parallel to the axis of the artificial blood vessel base 1, the number of the connecting lines 9 is two, so as to improve the force uniformity of the supporting component, and simultaneously avoid the situation of rotation dislocation of the supporting component, the two connecting lines 9 are respectively disposed at two ends of the first half ring 501 or the second half ring 502, in other embodiments of the present invention, a plurality of connecting lines 9 may also be disposed, so as to further improve the stability and flexibility of the supporting component, and two or more connecting lines 9 are disposed on the first half ring 501 or the second half ring 502, so as to avoid affecting the opening and withdrawing actions of the umbrella frame 5.
More specifically, the film 3 is connected with a pulling strip 10, the pulling strip 10 extends towards the direction far away from the skirt edge 2, the pulling strip 10 can be used for conveniently driving the film 3 to slide, and the operation convenience is further improved. It should be explained here that when the artificial blood vessel has a branch vessel 8, the covering membrane 3 can be cut off to avoid damage to the branch vessel 8 of the artificial blood vessel when the covering membrane 3 is withdrawn in a sliding manner.
In addition, the turning-up umbrella 4 is used for pushing the skirt edge 2 to unfold, so that the end part of the autologous blood vessel 19 is smoothly turned up, the force bearing uniformity of the skirt edge 2 is improved by the turning-up umbrella 4, the uniform unfolding of the external skirt edge 2 is favorably ensured, the subsequent connection and anastomosis part of the skirt edge 2 and the autologous blood vessel 19 is uniform and dense, and the bleeding risk of an anastomosis hole is fully reduced. A plurality of umbrella ridges 6 are uniformly distributed in the circumferential direction around the axis of the umbrella framework 5, the stress uniformity of the umbrella 4 with the outwards-turned umbrella is improved, the elastic pieces 7 are twisted springs, the elastic pieces 7 correspond to the umbrella ridges 6 one by one, when the film covering 3 is sleeved outside the supporting assembly, the elastic pieces 7 are compressed, and when the supporting assembly is separated from the film covering 3, the umbrella ridges 6 are turned over under the action force of the elastic pieces 7 restoring deformation to drive the outwards-turned umbrella 4 to be unfolded.
It should be further noted that the blood vessel conveying element 11 can extend into the artificial blood vessel base body 1, the blood vessel conveying element 11 extends into the far-end contraction section of the artificial blood vessel base body 1 by the connecting rod 12, during the operation, the artificial blood vessel is conveyed by the blood vessel conveying element 11, the guiding head 14 can provide guiding for the conveying of the artificial blood vessel base body 1, the guiding head 14 and the installation and release of the blood vessel bracket 13 are all conventional means of a person skilled in the art, the smooth operation of the surgical operation is ensured by the blood vessel conveying element 11, in addition, the blood vessel conveying element 11 is connected with the pull ring 15, and the operation convenience is further improved.
In other specific embodiments of the present invention, the artificial blood vessel anastomosis device further comprises an anastomat, the anastomat comprises a nail seat 16 and a nail bin 17, as shown in fig. 6, the nail bin 17 is movably connected with the nail seat 16, a suture nail 18 is arranged in the nail bin 17, a gap capable of accommodating the skirt 2 and the autologous blood vessel 19 is arranged between the nail bin 17 and the nail seat 16, and the nail bin 17 drives the suture nail 18 to move, so as to fix the artificial blood vessel base body 1 and the autologous blood vessel 19. In practical operation, the anastomat can be set to be of a cambered surface structure, for example, the anastomat is a semi-cylindrical surface, the suturing nail 18 is firstly utilized to fix one side of the skirt edge 2 and the autologous blood vessel 19, and then the direction is switched to fix the other side of the skirt edge 2 and the autologous blood vessel 19; or the anastomat is of two symmetrical semi-cylindrical structures, the suturing nail 18 can be used for fixing the skirt edge 2 and the autologous blood vessel 9 at the same time, secondary operation is not needed, and the anastomosis efficiency is further improved. The nail seat 16 and the nail bin 17 can adopt a sliding connection mode or an articulated connection mode, so that the sewing nail 18 can work conveniently.
Further, the invention also provides an artificial blood vessel anastomosis method, which is characterized in that the artificial blood vessel is extended into the autologous blood vessel 19 by utilizing the artificial blood vessel, the outer diameter of the skirt edge 2 is larger than the diameter of the autologous blood vessel 19, when anastomosis operation is carried out, the end part of the autologous blood vessel 19 is outwards turned, an inclined plane is formed at the outwards turned part, and the skirt edge 2 and the inclined plane at the outwards turned part of the autologous blood vessel 19 are connected and fixed, so that anastomosis of the artificial blood vessel and the autologous blood vessel 19 is realized, the anastomosis degree of the artificial blood vessel and the autologous blood vessel 19 is effectively improved, and the risk of aortic surgery is reduced.
During aortic surgery, the aorta to be resected needs to be fully exposed and then severed proximally and distally, respectively, to perform an anastomosis procedure of the artificial blood vessel. When the distal end is severed, the remaining aortic opening is exposed at the distal end of the incision. At the moment, the artificial blood vessel with the adaptive specification is taken out, and the outer diameter of the skirt edge 2 of the artificial blood vessel is larger than the diameter of the opening of the aorta. The prosthesis is advanced anterogradely into the aortic opening until the skirt 2 is proximally drawn inward and the edge is flush with the edge of the opening, as shown in figure 7. The primary release, i.e. sliding the cover membrane 3, is performed to separate the cover membrane 3 from the support member, since the distal end of the aortic opening is not completely free and immobile, and thus the aortic opening is turned inside out a slant surface circumferentially under the eversion action of the everting umbrella 4 and attached to the skirt 2 to form an anastomotic rim, as shown in fig. 8. The staple holder 16 and the staple cartridge 17 are positioned at the proximal and distal ends of the anastomotic rim and, after suitable positioning, fired so that the staples 18 completely secure the skirt 2 to the everted aortic wall, completing the anastomosis of the aorta, as shown in figure 9. The invention adopts a mode of fixing the release coating 3 and the suturing nails 18, can quickly establish the anastomosis edge and perform anastomosis of the anastomosis edge, can greatly shorten the anastomosis time compared with a mode of sewing by needle and thread, and can adjust the density of the suturing nails 18 in the nail bin 17 according to the actual working condition, thereby achieving the uniform and dense fixing effect and fully reducing the bleeding risk of the anastomosis orifice. And then secondary release is carried out, namely the pull ring 15 of the blood vessel conveying element 11 is withdrawn, so that the blood vessel support 13 is restored to be in a natural form, under the action of deformation restoration, the blood vessel support 13 drives the far-end contraction section of the artificial blood vessel base body 1 connected with the blood vessel support to be in a cylindrical form, so that blood flow can flow into a far-end aorta from the artificial blood vessel with the skirt edge 2, abnormal hydromechanics blood flow is not formed near an anastomotic stoma, related risks are avoided, meanwhile, the blood vessel support 13 provides support for the far-end aorta at the anastomotic stoma, risks caused by vessel collapse are avoided, and finally the blood vessel conveying element 11 and parts connected with the blood vessel conveying element are removed.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (10)
1. An artificial blood vessel, characterized by: the artificial blood vessel comprises an artificial blood vessel matrix and a skirt edge, wherein the artificial blood vessel matrix is connected with the skirt edge, the artificial blood vessel matrix can be communicated with an autologous blood vessel, the skirt edge is of an annular structure, the outer diameter of the skirt edge is larger than the inner diameter of the autologous blood vessel, the skirt edge is sleeved outside the artificial blood vessel matrix, the skirt edge can be connected with the autologous blood vessel, and the skirt edge is made of a flexible material.
2. An artificial blood vessel anastomosis device comprising the artificial blood vessel of claim 1, further comprising:
the supporting assembly comprises an outward-turning umbrella, an umbrella framework and umbrella ridges, the umbrella framework is of an annular structure, the umbrella framework is sleeved outside the artificial blood vessel base body, one end of each umbrella ridge is hinged to the umbrella framework, an elastic part is arranged between the two ends of each umbrella ridge, the number of the umbrella ridges is multiple, the outward-turning umbrella is connected with the multiple umbrella ridges to form an umbrella-shaped structure with an opening, and the outward-turning umbrella is positioned on one side, close to the skirt edge, of each umbrella ridge;
the film covering device comprises a film covering, the film covering is of a hollow cylindrical structure, the film covering is slidably sleeved outside the supporting assembly, when the film covering is sleeved outside the supporting assembly, the free end of the umbrella ridge is close to the artificial blood vessel matrix, and when the film covering is separated from the supporting assembly, the outward-turning umbrella can abut against the skirt edge.
3. The artificial vascular anastomosis device according to claim 2, wherein: the umbrella frame is of a split structure and comprises a first half ring and a second half ring, one end of the first half ring is hinged to one end of the second half ring, and the other end of the first half ring is connected with the other end of the second half ring in a clamping mode.
4. The artificial vascular anastomosis device according to claim 3, wherein: the support assembly further comprises a connecting wire, one end of the connecting wire is connected with the first half ring or the second half ring, and the other end of the connecting wire can be connected with a vascular delivery element.
5. The artificial vascular anastomosis device according to claim 4, wherein: the connecting lines are made of metal materials and are arranged in parallel to the axis of the artificial blood vessel base body, the number of the connecting lines is two, and the two connecting lines are respectively arranged at two ends of the first half ring or the second half ring.
6. The artificial vascular anastomosis device according to claim 2, wherein: the film covering device is characterized in that the film covering device is connected with a pulling strip, and the pulling strip extends towards the direction far away from the skirt edge.
7. The artificial vascular anastomosis device according to claim 2, wherein: the umbrella ribs are uniformly distributed around the axis of the umbrella framework in the circumferential direction, the elastic parts are twisted springs, and the elastic parts correspond to the umbrella ribs one to one.
8. The artificial vascular anastomosis device according to claim 4, wherein: the blood vessel conveying element can extend into the artificial blood vessel matrix and can drive the artificial blood vessel matrix, the blood vessel stent and the guide head to move.
9. The artificial vascular anastomosis device according to claim 2, wherein: still include the anastomat, the anastomat includes nail seat and nail storehouse, the nail storehouse with nail seat activity links to each other, have the sewing nail in the nail storehouse, artificial blood vessel base member can utilize the sewing nail with the autologous blood vessel realizes anastomosing.
10. An artificial blood vessel anastomosis method using the artificial blood vessel of claim 1, wherein: and (3) extending the artificial blood vessel into the autologous blood vessel, turning the end part of the autologous blood vessel outwards, and connecting the skirt edge with the turned-out part of the autologous blood vessel so as to realize anastomosis of the artificial blood vessel and the autologous blood vessel.
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| CN202210996197.3A CN115211920A (en) | 2022-08-19 | 2022-08-19 | Artificial blood vessel, anastomosis device and anastomosis method |
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| CN202210996197.3A CN115211920A (en) | 2022-08-19 | 2022-08-19 | Artificial blood vessel, anastomosis device and anastomosis method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116602723A (en) * | 2023-07-20 | 2023-08-18 | 泓欣科创(北京)科技有限公司 | Auxiliary hanging ring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116602723A (en) * | 2023-07-20 | 2023-08-18 | 泓欣科创(北京)科技有限公司 | Auxiliary hanging ring device |
| CN116602723B (en) * | 2023-07-20 | 2023-11-10 | 泓欣科创(北京)科技有限公司 | Auxiliary hanging ring device |
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Effective date of registration: 20231124 Address after: 100037 Beijing City, Xicheng District No. 167 North Applicant after: FUWAI HOSPITAL, CHINESE ACADEMY OF MEDICAL SCIENCES Address before: 100037 Ward 3, Vascular Center, Fuwai Hospital, Chinese Academy of Medical Sciences, No. 167, Beilishi Road, Xicheng District, Beijing Applicant before: Yu Cuntao |