CN106725682B - Anastomosis buckle ring for aorta and artificial blood vessel assembly using same - Google Patents
Anastomosis buckle ring for aorta and artificial blood vessel assembly using same Download PDFInfo
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- CN106725682B CN106725682B CN201710012261.9A CN201710012261A CN106725682B CN 106725682 B CN106725682 B CN 106725682B CN 201710012261 A CN201710012261 A CN 201710012261A CN 106725682 B CN106725682 B CN 106725682B
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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
- 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
- A61B17/115—Staplers for performing anastomosis in a single operation
-
- 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
- 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
- A61B2017/1103—Approximator
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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
-
- 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
Abstract
The invention discloses an anastomosis buckle ring for an aorta and an artificial blood vessel component applying the anastomosis buckle ring, relates to the technical field of medical instruments, and aims to solve the technical problems that the operation is inconvenient and the adjustment is not easy when an existing silk thread (or silk ribbon) is knotted to fix a lantern ring of an artificial blood vessel. The invention relates to an anastomosis buckle ring for aorta, which comprises: the buckle body is of an annular opening structure, and first instrument operation holes are respectively formed in the buckle body and positioned on two sides of the opening; one end of the buckle body is provided with a first buckle piece, the other end of the buckle body is provided with a second buckle piece, and the first buckle piece and the second buckle piece are mutually inserted and locked, so that the aorta anastomosis buckle ring is used for sleeving and fixing the outer side of the lantern ring of the artificial blood vessel; the more the first fastener and the second fastener are mutually inserted and locked, the smaller the diameter of the aorta anastomosis buckle is; the less the overlap of the first fastener and the second fastener interengaged and locked, the larger the diameter of the aortic anastomosis fastener ring.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an anastomosis buckle ring for an aorta and an artificial blood vessel assembly applying the anastomosis buckle ring.
Background
Since the advent of cardiovascular surgery in the 50's last century, aortic disease has plagued cardiovascular surgeons. The aortic diseases such as aortic aneurysm, particularly aortic dissection aneurysm, are acute, the disease course is fast to progress, the disease condition is complex, and the death rate is extremely high. The vast majority of aortic aneurysms include aortic dissection aneurysms, which require surgical treatment of the patient to replace the diseased artery with an artificial large blood vessel. Due to the fact that most diseased aorta tissues are seriously edematous and highly fragile, the operation of the anastomosis of the artificial great vessel and the diseased aorta of a patient is extremely complex, the technical difficulty is high, anastomotic stoma is easy to bleed, and the anastomosis time is long, so that the time of deep low temperature circulation (DHCA) is prolonged, serious complications such as ischemic brain injury or spinal cord injury are easy to occur, and the operation of the aortic aneurysm is still the operation with the largest difficulty and the highest risk in cardiovascular surgery until now and can only be carried out in the center of few hearts. How to reduce the aorta anastomosis time and the probability of anastomotic bleeding so as to reduce related complications and improve the success rate of surgical treatment of patients with aortic aneurysm is a problem which is urgently desired to be solved by cardiovascular surgical experts at home and abroad.
Since the 70's of the 20 th century, cardiovascular surgeons have attempted to perform aortic anastomoses using a non-suture method to reduce the time of anastomosis and the incidence of anastomotic bleeding. The non-suture method, i.e. the non-suture artificial vascular intraluminal grafting (SIG), is to place the artificial blood vessel with the lantern rings at both ends into the two broken ends of the aorta, and then to tie the part corresponding to the lantern rings outside the aorta to complete the fixation and anastomosis.
However, in the prior art, the umbilical cord is used and tied and fixed on site by a doctor, the force for fixing the knot is not controllable, the blood vessel is easily cut by the too thin silk thread with too large force, the blood vessel is likely to slip due to small force, and the pseudoaneurysm is formed by blood leakage. The back people use the silk ribbon with certain width to knot and fix, though the cutting effect has been avoided but the intensity of knot still receives operator's artificial influence to a great extent, and in addition in case the knot is accomplished the silk ribbon and can closely laminate to the blood vessel and lead to the doctor to release hardly to readjust.
Disclosure of Invention
The invention aims to provide an anastomosis buckle ring for an aorta and an artificial blood vessel component applying the anastomosis buckle ring, so as to solve the technical problems of inconvenient operation and difficult adjustment when the conventional silk thread (or silk ribbon) is knotted to fix a lantern ring of an artificial blood vessel.
The invention provides an anastomosis buckle ring for aorta, comprising: the buckle body is of an annular opening structure, and first instrument operation holes are respectively formed in the buckle body and located on two sides of the opening; one end of the buckle body is provided with a first buckling piece, the other end of the buckle body is provided with a second buckling piece, and the first buckling piece and the second buckling piece are mutually inserted and locked, so that the aorta anastomosis buckle ring is used for sleeving and fixing the outer side of the lantern ring of the artificial blood vessel; the more the first fastener and the second fastener are mutually inserted and locked, the smaller the diameter of the aorta anastomosis buckle ring is; the less the overlapping part of the first fastener and the second fastener which are mutually inserted and locked is, the larger the diameter of the anastomosis buckle ring for the aorta is; the first buckling piece is of a V-shaped arm structure and can be opened and closed in the vertical direction, and the second buckling piece is of a U-shaped arm structure; the opening end of the V-shaped arm structure is respectively provided with a buckling tooth and a buckling groove which can be matched and buckled, and the buckling tooth and the buckling groove are used for self-locking of the first buckling piece; the opening end of the V-shaped arm structure is further provided with a second instrument operation hole, and the second instrument operation hole is used for self-locking and opening of the first buckling piece through an instrument.
In practical application, at least one of the first fastener and the second fastener is a movable structure; the movable structure can be opened and closed in the vertical direction and is self-locked; after self-locking, the diameter of the anastomosis buckle ring for the aorta can be reduced only and cannot be enlarged; after unlocking, the diameter of the aorta anastomosis buckle can be adjusted in two directions.
Specifically, the bent part of the V-shaped arm structure is of a hollow structure.
Furthermore, the V-shaped arm structure is provided with a protruding strip along the extending direction of the buckle body for preventing the first buckle and the second buckle from being dislocated with each other.
Furthermore, the inner sides of the upper surface and the lower surface of the V-shaped arm structure of the first buckling piece are provided with first teeth; and second teeth matched with the first teeth are arranged on the upper side and the lower side of the top surface of the U-shaped arm structure of the second buckling piece.
In practical application, the inner side of the buckle body is provided with a first anti-slip structure and/or a second anti-slip structure.
Wherein the first anti-slip structure is a protrusion and/or a groove; or the first anti-skid structure is a hollow hole.
Specifically, the second anti-slip structure is an elastic polymer material layer or a polyester liner.
Compared with the prior art, the anastomosis buckle ring for the aorta has the following advantages:
the invention provides an anastomosis ring for aorta, comprising: the buckle body is of an annular opening structure, and first instrument operation holes are respectively formed in the buckle body and positioned on two sides of the opening; the anastomosis buckle ring for the aorta is used for sleeving and fixing the outer side of the lantern ring of the artificial blood vessel; specifically, the more overlapping portions of the first fastener and the second fastener that are interlocked and locked with each other, the smaller the diameter of the anastomotic buckle for the aorta; the less the overlap of the first fastener and the second fastener interengaged and locked, the larger the diameter of the aortic anastomosis fastener ring. From the analysis, the anastomosis ring for the aorta provided by the invention has the advantages that as the ring body is of the annular opening structure, and the first buckling piece and the second buckling piece at the two tail ends of the ring body can be mutually inserted and locked, the anastomosis ring for the aorta provided by the invention is convenient to open and is sleeved at the fracture of the aorta, so that the aorta is firmly locked on the lantern ring of the artificial blood vessel, and the mechanical connection between the aorta and the artificial blood vessel is realized; meanwhile, the two sides of the opening on the buckle body are respectively provided with a first instrument operation hole, so that the first instrument operation holes can be matched with a surgical instrument with a long handle for use, and the operation can be conveniently carried out in a narrow space; in addition, the more the overlapping parts of the first buckling part and the second buckling part which are mutually inserted and locked are, the smaller the diameter of the aorta anastomosis buckle ring is, and the less the overlapping part is, the larger the diameter is, so that the aorta anastomosis buckle ring provided by the invention can be bidirectionally adjusted, the size can be conveniently adjusted in the using process, and the aorta anastomosis buckle ring can be conveniently detached and replaced after misoperation.
The present invention also provides an artificial blood vessel assembly comprising: the anastomosis ring is detachably sleeved on the outer side of the artificial blood vessel and corresponds to any one of the anastomosis ring for the aorta at the lantern ring.
The advantages of the artificial blood vessel component and the anastomosis buckle ring for the aorta are the same compared with the prior art, and the description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of an anastomosis ring for aorta according to an embodiment of the present invention;
FIG. 2 is a schematic front view of an anastomosis ring for aorta according to an embodiment of the present invention;
FIG. 3 is a schematic view of an anastomosis ring for aorta with adjustable active size according to an embodiment of the present invention;
FIG. 4 is a schematic view of a dimensionally stable locked configuration of an anastomosis ring for an aorta, according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of the circled portion of FIGS. 3 and 4;
FIG. 6 is a schematic perspective view of an alternative embodiment of an anastomosis ring for use in an aorta, in accordance with the present invention;
fig. 7 is a perspective view of another embodiment of an anastomosis ring for aorta according to the present invention.
In the figure: 1-a buckle body; 11-a first instrument manipulation aperture; 2-a first fastener; 3-a second fastener; 21-a tooth is buckled; 22-a catching groove; 23-a hollow structure; 24-a second instrument manipulation aperture; 25-raised bars; 26-a first tooth; 31-second tooth; 32-reverse adjustment holes; 4-first anti-slip structure.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
FIG. 1 is a schematic perspective view of an anastomosis ring for aorta according to an embodiment of the present invention; FIG. 2 is a schematic front view of an anastomosis ring for aorta according to an embodiment of the present invention; FIG. 3 is a schematic view of an anastomosis ring for aorta with adjustable active size according to an embodiment of the present invention; FIG. 4 is a schematic view of a dimensionally stable locked configuration of an anastomosis ring for an aorta, according to an embodiment of the present invention; fig. 5 is an enlarged schematic view of a circled portion in fig. 3 and 4.
As shown in fig. 1-5, an embodiment of the present invention provides an anastomotic buckle for an aorta, comprising: the buckle body 1 is of an annular opening structure, and first instrument operation holes 11 are respectively formed in two sides, located on the opening, of the buckle body 1; one end of the buckle body 1 is provided with a first buckle part 2, the other end is provided with a second buckle part 3, the first buckle part 2 and the second buckle part 3 are mutually inserted and locked, so that the aorta is sleeved and fixed on the outer side of the lantern ring of the artificial blood vessel by the anastomosis buckle ring; the more the overlapping parts of the first fastener 2 and the second fastener 3 which are mutually inserted and locked are, the smaller the diameter of the anastomosis buckle ring for the aorta is; the less the overlap of the first fastener 2 and the second fastener 3 that are interlocked, the larger the diameter of the aortic anastomosis ring.
Compared with the prior art, the anastomosis ring for the aorta provided by the embodiment of the invention has the following advantages:
the anastomosis ring for aorta provided by the embodiment of the invention, as shown in fig. 1-5, comprises: the buckle body 1 is of an annular opening structure, and first instrument operation holes 11 are respectively formed in two sides of the opening of the buckle body 1; wherein, one end of the buckle body 1 is provided with a first buckle 2, the other end is provided with a second buckle 3, the first buckle 2 and the second buckle 3 are mutually inserted and locked, so that the aorta anastomosis buckle is used for sleeving and fixing the outside of the lantern ring of the artificial blood vessel; specifically, the more the first fastener 2 and the second fastener 3 overlap each other in the form of an interlocking loop, the smaller the diameter of the aortic anastomosis loop; the smaller the overlap of the first fastener 2 and the second fastener 3, the larger the diameter of the aortic anastomosis ring. From the analysis, it can be seen that, in the anastomosis ring for aorta provided by the embodiment of the present invention, because the ring body 1 is of an annular opening structure, and the first fastener 2 and the second fastener 3 at the two ends of the ring body 1 can be mutually inserted and locked, the anastomosis ring for aorta provided by the embodiment of the present invention is convenient to open and cover the fracture of the aorta, so as to firmly lock the aorta on the ring of the artificial blood vessel, thereby realizing the mechanical connection between the aorta and the artificial blood vessel; meanwhile, the two sides of the opening of the buckle body 1 are respectively provided with a first instrument operation hole 11, so that the first instrument operation holes 11 can be matched with a surgical instrument with a long handle for use, and operation can be conveniently carried out in a narrow space; in addition, the more the overlapping parts of the first fastener 2 and the second fastener 3 are mutually inserted and locked, the smaller the diameter of the aortic anastomosis clasp is, and the smaller the overlapping parts are, the larger the diameter of the aortic anastomosis clasp is, so that the aortic anastomosis clasp provided by the embodiment of the invention can be bidirectionally adjusted, the size can be conveniently adjusted in the using process, and the aortic anastomosis clasp can be conveniently detached and replaced after misoperation.
The width of the clasp body 1 is preferably matched with the width of a lantern ring of an artificial blood vessel, so that the anastomotic clasp ring for the aorta provided by the embodiment of the invention can be concentric and coaxial with the lantern ring when in use, and the phenomenon of deflection is avoided.
In practice, as shown in FIGS. 1-4, at least one of the first fasteners 2 and the second fasteners 3 may be configured to be free-moving, i.e., the fasteners in the free-moving configuration are capable of being opened and closed in the vertical direction and are self-locking. Specifically, after self-locking, the diameter of the anastomosis buckle ring for the aorta can be only reduced but can not be enlarged; after unlocking, the diameter of the anastomosis ring for aorta can be adjusted in two directions. In consideration of the processing difficulty, in the anastomosis fastener for the aorta provided by the embodiment of the invention, only one fastener, namely the first fastener 2, is of a movable structure; of course, it is also possible to construct the second fasteners 3 in a flexible configuration, or to construct both the first fasteners 2 and the second fasteners 3 in a flexible configuration during actual manufacturing.
As shown in fig. 1 and 2, in order to facilitate the opening and closing and self-locking of the first fastener 2, the first fastener 2 may have a V-arm structure and can be opened and closed in the vertical direction; in order to facilitate the mating of the second fastener 3 with the first fastener 2, the second fastener 3 may have a U-shaped arm structure; as shown in fig. 3 and 4, the opening end of the V-shaped arm structure may be respectively provided with a tooth 21 and a groove 22 that can be engaged with each other, and the tooth 21 and the groove 22 can be used for self-locking of the first fastener 2, that is, the V-shaped arm structure can be inserted into the U-shaped arm structure, and the tooth 21 can be engaged with the groove 22.
In actual production, as shown in fig. 2, the fastening teeth 21 may be triangular, and the fastening teeth 21 with a triangular structure can have a good fastening effect; of course, the specific shape of the tooth 21 is not limited herein, and other shapes such as a trapezoidal structure and the like are also possible.
Specifically, in order to open and close the first fastener 2 more conveniently, as shown in fig. 1 and fig. 2, the bent portion of the V-shaped arm structure may be a hollow structure 23, so that the stress generated by the deformation of the material at the bent portion in the self-locking state is effectively reduced by the hollow structure 23.
Further, in order to facilitate the locking of the first fastener 2 by the operator using a tool, as shown in fig. 1 and 2, the open end of the V-arm structure may further be provided with a second device operation hole 24, so that the second device operation hole 24 can be used for cooperating with a device used by the operator, thereby conveniently completing the self-locking and opening of the first fastener 2.
Furthermore, in order to prevent the first fastener 2 and the second fastener 3 from being misaligned when they are inserted into each other, as shown in fig. 1 and 2, the V-shaped arm structure may be provided with a protruding strip 25 along the extending direction of the buckle body 1 for preventing the first fastener 2 and the second fastener 3 from being misaligned, so that the protruding strip 25 can function as a limiting strip, thereby effectively preventing the two fasteners from being misaligned.
Still further, since the more the overlapping portions of the first fastener 2 and the second fastener 3 are inserted and locked with each other, the smaller the diameter of the aortic anastomosis ring is, the smaller the overlapping portion is, the larger the diameter is, and therefore, in order to better realize the positioning operation with a specific diameter; as shown in fig. 1 to 4, the inner sides of the upper and lower surfaces of the V-shaped arm structure of the first fastener 2 may be respectively provided with first teeth 26 (the first teeth 26 are disposed all the way below, and may be disposed partially or all the way above according to the needs of fastening and self-locking force), and the upper and lower sides of the top surface of the U-shaped arm structure of the second fastener 3 may be respectively provided with second teeth 31 matching with the first teeth 26, so that the first teeth 26 and the second teeth 31 are engaged with each other to position the specific diameter of the aortic anastomosis ring.
In practical operation, the bidirectional adjustment process of the diameter of the anastomosis ring for aorta can be as follows: the diameter is increased by inserting the device into the distal counter-adjustment hole 32 (shown in fig. 1) of the U-arm structure after unlocking, thereby separating the first and second engaged teeth 26, 31 and further separating the first and second fasteners 2, 3; the diameter is reduced by inserting the instrument into the first instrument access hole 11 after self-locking or unlocking, thereby causing the first fastener 2 to overlap and engage the second fastener 3.
In the prior art, the silk thread (or silk ribbon) needs to be wound in a plurality of circles, the visual field and the operation direction of a doctor are perpendicular to the axis of the blood vessel, so that the silk thread (or silk ribbon) can be wound in the shortest distance, otherwise, the silk thread (or silk ribbon) risks slipping after long-term use.
In practical application, the technical problem of the slippage is effectively solved; in the anastomotic clasp ring for aorta according to the embodiment of the present invention, as shown in fig. 1 and 2, fig. 3 and 4 in combination with fig. 5, a first anti-slip structure 4 may be disposed inside the clasp body 1; alternatively, a second anti-slip structure (not shown) may be disposed inside the buckle body 1; or, the inner side of the buckle body 1 can be provided with both the first anti-slip structure 4 and the second anti-slip structure, so that the anti-slip effect between the anastomosis buckle for the aorta and the artificial blood vessel can be effectively achieved through the first anti-slip structure 4 and the second anti-slip structure.
FIG. 6 is a schematic perspective view of an alternative embodiment of an anastomosis ring for use in an aorta, in accordance with the present invention; fig. 7 is a perspective view of another embodiment of an anastomosis ring for aorta according to the present invention.
As shown in fig. 1 and fig. 2, fig. 3 and fig. 4 in combination with fig. 5, the first anti-skid structure 4 may be a protrusion; or, the first anti-slip structure 4 may be a groove; alternatively, the first anti-skid structure 4 may include both protrusions and recesses.
As shown in fig. 6 and 7, the first anti-slip structure 4 may also be a plurality of hollow holes, and the plurality of hollow holes are uniformly distributed on the buckle body 1 along the circumferential direction.
Specifically, the second anti-slip structure may be an elastic polymer material layer or a polyester liner.
It should be noted that, the second anti-slip structure may be made of an elastic polymer material layer or a dacron pad, which is different from the material of the buckle body 1, or may be made of the same material by different processing techniques.
Of course, the anti-slip effect between the anastomosis buckle ring for the aorta and the artificial blood vessel can also be realized by other modes capable of increasing the friction coefficient between the anastomosis buckle ring for the aorta and the artificial blood vessel, namely, the friction force between the anastomosis buckle ring for the aorta and the artificial blood vessel is increased by increasing the friction coefficient, so that the anti-slip effect is achieved.
It should be added that, in order to enable the first fastener 2 and the second fastener 3 to be self-locked smoothly after being inserted into each other, in the aortic anastomosis ring provided in the embodiments of the present invention, as shown in fig. 1, 6 and 7, at least three specific distribution patterns are provided:
firstly, as shown in fig. 1, the width of the U-shaped arm structure is about half of the width of the V-shaped arm structure, and the teeth 21 and the grooves 22 on the V-shaped arm structure are arranged in a staggered manner with respect to the U-shaped arm structure;
secondly, as shown in fig. 6, an inserting and sliding space is reserved in the middle of the V-shaped arm structure, the width of the U-shaped arm structure is about 1/3 of the width of the V-shaped arm structure, that is, the U-shaped arm structure is arranged corresponding to the inserting and sliding space, and meanwhile, two groups of the fastening teeth 21 and the fastening grooves 22 on the V-shaped arm structure are respectively and correspondingly arranged and are respectively arranged on two sides of the U-shaped arm structure;
thirdly, as shown in fig. 7, an inserting and sliding space is reserved in the middle of the U-shaped arm structure, the width of the inserting and sliding space is about 1/3 of the width of the V-shaped arm structure, and the tooth 21 and the groove 22 on the V-shaped arm structure are arranged corresponding to the inserting and sliding space.
In addition, after all operations are finished, the two first instrument operation holes 11 can be bound through silk threads, silk ribbons or metal pieces, so that the anastomosis buckle ring for the aorta provided by the embodiment of the invention can be effectively ensured to be safely used in vivo for a long time.
An embodiment of the present invention further provides an artificial blood vessel component, including: the anastomosis ring comprises an artificial blood vessel provided with a lantern ring and an anastomosis buckle ring which is detachably sleeved on the outer side of the artificial blood vessel and corresponds to the lantern ring for the aorta.
The anastomosis buckle ring for the aorta and the artificial blood vessel component applying the anastomosis buckle ring provided by the embodiment of the invention mainly have the following advantages:
1. the opening cohesion structure is convenient to place;
2. the inside of the anastomosis ring is designed with anti-skid matching;
3. the operation hole of the surgical instrument is convenient for operation in a narrow space;
4. the size is adjusted in a positive and negative direction, so that the size adjustment in the using process is convenient, and the size can be conveniently released and replaced after operation errors;
5. the two-way buckles are arranged up and down, left and right and the operation holes are bound, so that the size stability after long-term use can be ensured;
6 have certain width, can guarantee with the endovascular lantern ring concentric, provide even pressure when preventing the slippage that the skew caused and prevent to damage the blood vessel and can guarantee locking strength.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An anastomosis grommet for an aorta, comprising: the buckle body is of an annular opening structure, and first instrument operation holes are respectively formed in the buckle body and located on two sides of the opening;
one end of the buckle body is provided with a first buckling piece, the other end of the buckle body is provided with a second buckling piece, and the first buckling piece and the second buckling piece are mutually inserted and locked, so that the aorta anastomosis buckle ring is used for sleeving and fixing the outer side of the lantern ring of the artificial blood vessel;
the more the first fastener and the second fastener are mutually inserted and locked, the smaller the diameter of the aorta anastomosis buckle ring is; the less the overlapping part of the first fastener and the second fastener which are mutually inserted and locked is, the larger the diameter of the anastomosis buckle ring for the aorta is;
the first buckling piece is of a V-shaped arm structure and can be opened and closed in the vertical direction, and the second buckling piece is of a U-shaped arm structure; the opening end of the V-shaped arm structure is respectively provided with a buckling tooth and a buckling groove which can be matched and buckled, and the buckling tooth and the buckling groove are used for self-locking of the first buckling piece;
the opening end of the V-shaped arm structure is further provided with a second instrument operation hole, and the second instrument operation hole is used for self-locking and opening of the first buckling piece through an instrument.
2. The aortic anastomosis ring of claim 1, wherein at least one of the first fastener and the second fastener is a removable type structure; the movable structure can be opened and closed in the vertical direction and is self-locked;
after self-locking, the diameter of the anastomosis buckle ring for the aorta can be reduced only and cannot be enlarged; after unlocking, the diameter of the aorta anastomosis buckle can be adjusted in two directions.
3. The aortic anastomosis ring according to claim 1, wherein the V-shaped arm structure includes a raised strip along an extension of the ring body for preventing the first and second fasteners from being misaligned.
4. The aortic anastomosis ring according to claim 1, wherein the first fastener has first teeth on the inner sides of the upper and lower surfaces of the V-shaped arm structure; and second teeth matched with the first teeth are arranged on the upper side and the lower side of the top surface of the U-shaped arm structure of the second buckling piece.
5. The aortic anastomosis grommet according to claim 1, wherein the inner side of the grommet body is provided with a first non-slip feature and/or a second non-slip feature.
6. The aortic anastomosis grommet of claim 5, wherein the first non-slip feature is a protrusion and/or a recess;
or the first anti-skid structure is a hollow hole.
7. The aortic anastomosis ring of claim 5, wherein the second non-slip structure is a layer of resilient polymer material or a polyester liner.
8. An artificial blood vessel assembly, comprising: an artificial blood vessel provided with a collar, and an anastomosis ring for aorta according to any one of claims 1 to 7 detachably fitted around the outside of the artificial blood vessel and corresponding to the collar.
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| CN109820620A (en) * | 2019-03-28 | 2019-05-31 | 钱希明 | A kind of anastomosis system of novel blood vessel and intravascular stent |
| CN113397761A (en) * | 2021-05-27 | 2021-09-17 | 华中科技大学同济医学院附属协和医院 | Suturing-free artificial blood vessel and conveying device thereof |
| CN113892997A (en) * | 2021-10-19 | 2022-01-07 | 中国人民解放军南部战区总医院 | Adjustable excessive constriction is from fixed rat left kidney vein C clamp |
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