CN113499164A - Elephant trunk support assembly capable of blocking blood and elephant trunk support implantation system - Google Patents
Elephant trunk support assembly capable of blocking blood and elephant trunk support implantation system Download PDFInfo
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- CN113499164A CN113499164A CN202110782856.9A CN202110782856A CN113499164A CN 113499164 A CN113499164 A CN 113499164A CN 202110782856 A CN202110782856 A CN 202110782856A CN 113499164 A CN113499164 A CN 113499164A
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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
- 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
- A61F2002/075—Stent-grafts the stent being loosely attached to the graft material, e.g. by stitching
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Abstract
The invention relates to the field of cardiovascular medical treatment, and particularly discloses a blood-blocking trunk support assembly and a trunk support implantation system. The disclosed can hinder blood trunk support subassembly includes metal support and tectorial membrane pipe, the length of tectorial membrane pipe is greater than metal support's length and forms no support section in the upper end of tectorial membrane pipe, still include communicating pipe and hinder blood spare, communicating pipe is flexible tube structure and its one end stretches into no support section inside and connects the inner wall at no support section with the detachable mode, it connects at communicating pipe outer wall with the detachable mode to hinder blood spare, it connects behind communicating pipe to hinder blood spare makes the closed portion of communicating pipe partial inner wall laminating in order to form and block the communicating pipe inner chamber, and communicating pipe is hindering blood spare and is dismantled the after the reconversion. The disclosed trunk stent implantation system comprises a trunk stent component, an extracorporeal circulation machine, a first blood conveying pipe, a second blood conveying pipe and a third blood conveying pipe. The invention can effectively shorten the time of deep hypothermia and circulation stopping so as to improve the curative effect of the operation.
Description
Technical Field
The invention relates to the field of cardiovascular medical treatment, in particular to a trunk support assembly capable of blocking blood and a trunk support implantation system.
Background
The type A aortic dissection refers to the dissection involving the ascending aorta, and usually requires ascending aorta replacement, full arch replacement and trunk support implantation; in the operation process, the external circulation is generally established by adopting a right axillary artery and a right atrial cannula; the method is limited by the structure of an A-type aorta interlayer, the process of implanting the trunk stent into a descending aorta and the process of inosculating the trunk stent and the far end of a main blood vessel of a four-branch blood vessel all need deep hypothermia, circulation stopping and low-flow unilateral selective cerebral perfusion through a right axillary artery, the circulation stopping time is about 20-30 minutes, a far end organ lacks blood supply, the longer the circulation stopping time is, the greater the adverse effect on an organism is, therefore, how to shorten the circulation stopping time is the key for improving the operation curative effect and the prognosis.
Among the prior art, patent 201910055722X discloses a can hinder elephant trunk support of blood promptly, it includes the support main part, main part inside lining and tectorial membrane pipe, the support main part cover is located on the main part inside lining, the tectorial membrane pipe covers in the support main part, the support main part is configured into through tectorial membrane pipe compression on the main part inside lining, be equipped with in the support main part rather than the blood blocking device of synchronous compression and release, block the blood flow in the support main part after the release of blood blocking device, block the blood blocking device including hindering the blood membrane, block the circumference border fixed connection of blood membrane in the support main part, and block and be equipped with the through-hole that is used for supplying the main part inside lining to pass on the blood membrane, block the blood device still including the membrane frame that is used for supporting to hinder the blood membrane, the membrane frame includes a plurality of roots and is radially distributed's branch, the one end of branch is connected in the support main part, the other end is connected in the main part inside lining.
Although the trunk support disclosed in the patent can shorten the circulation stopping time to a certain extent, the inventor of the invention finds that the blood blocking device of the trunk support is complex in structure, high in use cost and inconvenient to use in clinical practice; more importantly, in the blood blocking device of the trunk support, the blood blocking film is contracted or expanded along with the support main body, and the complete blood blocking structure needs to be matched with a main body lining (also called a support rod) to realize the blood blocking, namely, the main body lining passes through and blocks the through hole in the blood blocking stage, and after the main body lining is removed, the blood blocking effect of the blood blocking device is eliminated; the trunk stent is anastomosed with the far end of the main vessel of the four-branch vessel by withdrawing the supporting rod first, that is, the blood blocking structure can not be applied to the anastomosis process of the trunk stent and the far end of the main vessel of the four-branch vessel, and the process is a long time-consuming stage, and the process can not recover the far end perfusion, which has poor effect on shortening the shutdown time.
Based on this, in order to reduce the surgical risk, the above technical problems need to be solved.
Disclosure of Invention
In view of the above, the present invention provides a trunk stent assembly capable of blocking blood, wherein the blood blocking structure can be applied to the anastomosis process of the trunk stent and the distal end of the main vessel of the four branch vessels, so as to effectively shorten the time of deep hypothermia and circulatory arrest, thereby improving the curative effect of the operation.
In order to achieve the aim, the invention provides a blood-blocking trunk support assembly, which comprises a metal support with a self-expansion structure and a film-coated tube for coating the metal support, wherein the length of the film-coated tube is greater than that of the metal support, and a support-free section is formed at the upper end of the film-coated tube;
the trunk support assembly also comprises a communicating pipe and a blood blocking piece; the communicating pipe is of a flexible pipe structure, one end of the communicating pipe extends into the interior of the non-support section and is detachably connected to the inner wall of the non-support section; the blood blocking piece is detachably connected to the outer wall of the communicating pipe, the blood blocking piece is connected to the communicating pipe, then the inner wall of the communicating pipe is attached to form a closed portion for blocking the inner cavity of the communicating pipe, and the communicating pipe returns to the original shape after the blood blocking piece is detached.
As a further improvement of the technical scheme of the invention, the lower end of the communicating pipe is sewed on the inner wall of the stentless section through a suture, and the suture is knotted at the outer side of the film-coated pipe.
As a further improvement of the technical scheme of the invention, the length of the communicating pipe is 30-50mm, and the lower end of the communicating pipe is connected to the middle part of the non-support section or the position below the middle part.
As a further improvement of the technical scheme of the invention, the communicating pipe is of an artificial blood vessel structure.
As a further improvement of the technical scheme of the invention, the blood blocking piece is of a pipe clamp structure or a wire binding structure.
In order to achieve the above object, the present invention also provides an elephant trunk stent implanting system, which comprises an elephant trunk stent component, an extracorporeal circulation machine, a first blood conveying pipe, a second blood conveying pipe and a third blood conveying pipe;
one end of the first blood transfusion tube is used for being butted with the right atrium of the human body, the other end of the first blood transfusion tube is used for being butted with the inlet end of the extracorporeal circulation machine, one end of the second blood transfusion tube is used for being butted with the first outlet end of the extracorporeal circulation machine, the other end of the second blood transfusion tube is used for being butted with the right axillary artery of the human body, one end of the third blood transfusion tube is used for being butted with the second outlet end of the extracorporeal circulation machine, and the other end of the third blood transfusion tube is used for being butted with the femoral artery of the human body;
the trunk support assembly comprises a metal support with a self-expansion structure, a coating tube for coating the metal support, a communicating tube and a blood blocking piece, wherein the length of the coating tube is greater than that of the metal support, and a non-support section is formed at the upper end of a coating; the communicating pipe is of a flexible pipe structure, one end of the communicating pipe extends into the interior of the non-support section and is detachably connected to the inner wall of the non-support section; the blood blocking piece is detachably connected to the outer wall of the communicating pipe, the blood blocking piece is connected to the communicating pipe, then the inner wall of the communicating pipe is attached to form a closed portion for blocking the inner cavity of the communicating pipe, and the communicating pipe returns to the original shape after the blood blocking piece is detached.
As a further improvement of the technical scheme of the invention, the lower end of the communicating pipe is sewed on the inner wall of the stentless section through a suture, and the suture is knotted at the outer side of the film-coated pipe.
As a further improvement of the technical scheme of the invention, the length of the communicating pipe is 30-50mm, and the lower end of the communicating pipe is connected to the middle part of the non-support section or the position below the middle part.
As a further improvement of the technical scheme of the invention, the communicating pipe is of an artificial blood vessel structure.
As a further improvement of the technical scheme of the invention, the blood blocking piece is of a pipe clamp structure or a wire binding structure.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a trunk support assembly capable of blocking blood and a trunk support implantation system, and the creative contribution lies in the addition of a communicating pipe and a blood blocking piece; specifically, when ascending aorta replacement, full-arch replacement and trunk stent implantation operations are performed, double artery cannulas of the right axillary artery and the femoral artery of a patient are firstly inserted, and extracorporeal circulation is established for the right atrium cannulas; implanting an elephant nose support to a thoracic descending aorta under the conditions of deep low temperature, circulation stopping and low flow unilateral brain perfusion, cutting off a pre-connected communicating pipe through a blood blocking piece after the elephant nose support is released, and restoring distal blood supply through femoral artery intubation so as to finish the deep low temperature circulation stopping and circulation, and enabling the near end of the elephant nose support to be matched with the distal end of a main blood vessel of a four-branch blood vessel under the condition of restoring the distal blood supply; under the condition that the anastomosis is nearly finished, the femoral artery perfusion is suspended, the connection between the communicating pipe and the film-coated pipe is released to separate the communicating pipe and the film-coated pipe, the communicating pipe is pulled out, the remaining anastomosis operation is quickly finished, the near end of the main vessel of the four branch vessels is blocked after the operation is finished, and the distal perfusion is recovered; therefore, through the trunk support assembly, the blood blocking structure can be applied to the anastomosis process of the trunk support and the far ends of the main blood vessels of the four branch blood vessels, so that the time of deep hypothermia and circulation stopping can be effectively shortened, and the curative effect of the operation can be improved.
Moreover, the improvement cost of the invention is lower, and the invention can be directly improved and obtained on the existing trunk support and can be directly popularized and applied.
The invention improves the operation safety, reduces the operation cost, meets the social requirement, has strong practicability and is beneficial to promoting the development of cardiovascular medical technology.
Drawings
FIG. 1 is a schematic view of a blood-blocking trunk support assembly according to the present invention;
FIG. 2 is a schematic view of a blood blocking elephant trunk support assembly with the blood blocking member removed according to the present invention;
FIG. 3 is a schematic view of the connection between the membrane covering tube and the communicating tube of the anti-bloody elephant-trunk support assembly provided by the invention;
FIG. 4 is a view of the present invention showing the use of a blood blocking trunk support assembly;
fig. 5 is a schematic structural diagram of an elephant trunk stent implantation system provided by the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments; of course, the drawings are simplified schematic drawings, and the scale of the drawings does not limit the patented products.
Example one
As shown in fig. 1 to 4: the embodiment provides a blood-blocking trunk stent assembly, which comprises a metal stent 1 in a self-expansion structure and a coated tube 2 coated on the metal stent 1, wherein the length of the coated tube 2 is greater than that of the metal stent 1, and a stent-free section 21 is formed at the upper end of the coated tube 2. The stentless segment 21 is primarily intended for vascular anastomosis.
The directions of "up" and "down" are based on the directions shown in FIG. 1, and the upper end of the film-coated tube 2 is the proximal end. The structure and principle of the stent body composed of the metal stent 1 and the covered tube 2 are well known to those skilled in the art, and the CRONUS type intraoperative stent system produced by the existing minimally invasive heart vessel medical technology (Shanghai) Limited company is a common structure, and in addition, the invention can also refer to Chinese patents CN106618822B and CN 104622600B; therefore, the detailed structure, principle and material of the metal stent 1 and the coated tube 2 are not repeated herein.
The trunk support assembly capable of blocking blood provided by the embodiment is mainly improved in that the trunk support assembly further comprises a communicating pipe 3 and a blood blocking piece 4; the communicating pipe 3 is of a flexible pipe structure, one end of the communicating pipe extends into the interior of the non-support section 21 and is detachably connected to the inner wall of the non-support section 21; hinder blood piece 4 and connect in 3 outer walls of communicating pipe with the mode of dismantling, hinder blood piece 4 and connect and make 3 partial inner walls laminating of communicating pipe in order to form the closure part that blocks the 3 inner chambers of communicating pipe behind communicating pipe 3, just communicating pipe 3 is hindering blood piece 4 and is dismantled the back reconversion.
The communicating pipe 3 is made of flexible materials, has elasticity, can be compressed under the condition of radial acting force, and can be restored to the original shape after the acting force is eliminated; the communicating pipe 3 is in a round pipe shape, and openings are formed at the upper end and the lower end of the communicating pipe, so that the connection between the bracket main body and the conveying device cannot be influenced; preferably, the communicating tube 3 is an artificial blood vessel structure, and in this case, it may be made of synthetic materials such as nylon, dacron, and teflon.
The length of the communicating pipe 3 can be 30-50 mm; as shown in fig. 4, the edge of the mouth of the stentless section 21 forms an anastomosis portion 21a for suturing and anastomosing the distal end of the main four-branch vessel 8, and the lower end of the communicating tube 3 extends below the anastomosis portion 21a, so that the influence of the existence of the communicating tube 3 on the anastomosis of the distal end of the main four-branch vessel 8 can be avoided; therefore, the lower end of the communication pipe 3 is connected to the middle or a position below the middle of the frameless section 21.
The communicating pipe 3 is a temporary pipeline and needs to be conveniently connected and separated with the film-coated pipe 2; as shown in fig. 3, the lower end of the communicating tube 3 can be sutured on the inner wall of the stentless section 21 by the suture 5, and the suture 5 is knotted at the outer side of the coated tube 2; for example, the communicating tube 3 and the coated tube 2 can be continuously sutured by 5-0# medical suture, and the suture is tied at the outer side of the artificial blood vessel in trisection, so that the suture is convenient to suture and take apart; after the suture positioning, the communicating tube 3 communicates with the coated tube 2, and in case of restoration of the distal perfusion, blood can flow into the communicating tube 3, and the compliant medical suture operation can prevent blood leakage from the junction of the two. Under the condition of adopting the suture mode, an operator can connect the communicating pipe 3 to the film covering pipe 2 on site, so that the trunk support assembly of the embodiment can be conveniently manufactured, the production cost is greatly reduced, and the popularization and the application are convenient.
The blood blocking piece 4 is a key part for cutting off the passage of the communicating pipe 3, can be a pipe clamp structure similar to a blood blocking clamp, and forms a closed part in a clamping mode; of course, the blood blocking member 4 may be a wire-tied structure, and a closed portion may be formed by tying.
When ascending aorta replacement, full-arch replacement and trunk stent implantation operations are performed, firstly, double arteries of the right axillary artery and the femoral artery of a patient are intubated, and extracorporeal circulation is established for the right atrium intubated; implanting a trunk support to a thoracic descending aorta 9 under the conditions of deep low temperature, circulation stopping and low flow unilateral cerebral perfusion, cutting off a pre-connected communicating pipe 3 through a blood blocking piece 4 after the trunk support is released, and restoring distal blood supply through femoral artery intubation so as to finish the deep low temperature circulation stopping and circulation, and anastomosing the near end of the trunk support with the far end of a main blood vessel 8 of a four-branch blood vessel under the condition of restoring the distal blood supply; under the condition that the anastomosis is nearly finished, the femoral artery perfusion is suspended, the connection between the communicating pipe 3 and the coated pipe 2 is released to separate the communicating pipe 3 and the coated pipe, the remaining anastomosis operation is quickly finished, the near end of the main four-branch blood vessel 8 is blocked after the operation is finished, and the far end perfusion is recovered; therefore, through the trunk support assembly, the blood blocking structure can be applied to the anastomosis process of the trunk support and the far end of the main vessel 8 of the four-branch vessel, thereby effectively shortening the time of deep low temperature and stopping circulation and improving the curative effect of the operation.
According to general statistics, the operation of the trunk support assembly is shortened from 20-30 minutes of the prior operation to 3-5 minutes in the deep hypothermia and circulatory arrest time, which is of great significance to cardiovascular operations with minutes and seconds.
Example two
As shown in fig. 1 to 5 (the arrow in fig. 5 indicates the direction of blood flow), the present embodiment provides a trunk stent implantation system, which includes a trunk stent assembly, an extracorporeal circulation machine 6, a first blood transport tube 71, a second blood transport tube 72 and a third blood transport tube 73. The structure of the trunk support assembly is the same as that shown in the first embodiment; the structure and the use principle of the extracorporeal circulation machine 6 and the blood transfusion tube are the same as those of the prior art; the external circulation machine 6 and the blood transfusion tube form a perfusion device which is necessary for assisting the implantation of the trunk stent and the anastomosis with other blood vessels.
One end of the first blood transfusion tube 71 is used for being butted with the right atrium of the human body, the other end of the first blood transfusion tube is used for being butted with the inlet end 6a of the extracorporeal circulation machine 6, one end of the second blood transfusion tube 72 is used for being butted with the first outlet end 6b of the extracorporeal circulation machine 6, the other end of the second blood transfusion tube is used for being butted with the right axillary artery of the human body, one end of the third blood transfusion tube 73 is used for being butted with the second outlet end 6c of the extracorporeal circulation machine 6, and the other end of the third blood transfusion tube is used for being butted with the femoral artery of the human body.
The trunk stent assembly comprises a metal stent 1 with a self-expansion structure, a coated tube 2 coating the metal stent 1, a communicating tube 3 and a blood blocking piece 4, wherein the length of the coated tube 2 is greater than that of the metal stent 1, and a non-stent section 21 is formed at the upper end of a coating. The directions of "up" and "down" are based on the directions shown in FIG. 1, and the upper end of the film-coated tube 2 is the proximal end. The structure and principle of the stent body composed of the metal stent 1 and the covered tube 2 are well known to those skilled in the art, and the CRONUS type intraoperative stent system produced by the existing minimally invasive heart vessel medical technology (Shanghai) Limited company is a common structure, and in addition, the invention can also refer to Chinese patents CN106618822B and CN 104622600B; therefore, the detailed structure, principle and material of the metal stent 1 and the coated tube 2 are not repeated herein.
The trunk support implanting system provided by the embodiment is mainly improved in that the trunk support further comprises a communicating pipe 3 and a blood blocking piece 4; the communicating pipe 3 is of a flexible pipe structure, one end of the communicating pipe extends into the interior of the non-support section 21 and is detachably connected to the inner wall of the non-support section 21; hinder blood piece 4 and connect in 3 outer walls of communicating pipe with the mode of dismantling, hinder blood piece 4 and connect and make 3 partial inner walls laminating of communicating pipe in order to form the closure part that blocks the 3 inner chambers of communicating pipe behind communicating pipe 3, just communicating pipe 3 is hindering blood piece 4 and is dismantled the back reconversion.
The communicating pipe 3 is made of flexible materials and can be compressed under the condition of radial acting force; the communicating pipe 3 is in a round pipe shape, and openings are formed at the upper end and the lower end of the communicating pipe, so that the connection between the bracket main body and the conveying device cannot be influenced; preferably, the communicating tube 3 is an artificial blood vessel structure, and in this case, it may be made of synthetic materials such as nylon, dacron, and teflon.
The length of the communicating pipe 3 can be 30-50 mm; as shown in fig. 4, the edge of the mouth of the stentless section 21 forms an anastomotic portion for suturing and anastomosing the distal end of the main four-branch vessel 8, and the lower end of the communicating tube 3 extends below the anastomotic portion, so that the influence of the existence of the communicating tube 3 on the anastomosis of the distal end of the main four-branch vessel 8 can be avoided; therefore, the lower end of the communication pipe 3 is connected to the middle or a position below the middle of the frameless section 21.
The communicating pipe 3 is a temporary pipeline and needs to be conveniently connected and separated with the film-coated pipe 2; as shown in fig. 3, the lower end of the communicating tube 3 can be sutured on the inner wall of the stentless section 21 by a suture, and the suture is knotted at the outer side of the coated tube 2; for example, the communicating tube 3 and the coated tube 2 can be continuously sutured by 5-0# medical suture, and the suture is tied at the outer side of the artificial blood vessel in trisection, so that the suture is convenient to suture and take apart; after the suture positioning, the communicating tube 3 communicates with the coated tube 2, and in case of restoration of the distal perfusion, blood can flow into the communicating tube 3, and the compliant medical suture operation can prevent blood leakage from the junction of the two. Under the condition of adopting the suture mode, an operator can connect the communicating pipe 3 to the film covering pipe 2 on site, so that the trunk support assembly of the embodiment can be conveniently manufactured, the production cost is greatly reduced, and the popularization and the application are convenient.
The blood blocking piece 4 is a key part for cutting off the passage of the communicating pipe 3, can be a pipe clamp structure similar to a blood blocking clamp, and forms a closed part in a clamping mode; of course, the blood blocking member 4 may be a wire-tied structure, and a closed portion may be formed by tying.
When ascending aorta replacement, full arch replacement and trunk stent implantation operations are performed, double arteries of the right axillary artery and the femoral artery of a patient are intubated through a second blood transfusion pipe 72 and a third blood transfusion pipe 73, and an extracorporeal circulation is established by intubatton of the right atrium through a first blood transfusion pipe 71 and cooperation with an extracorporeal circulation machine 6; implanting a trunk support to a thoracic descending aorta 9 under the conditions of deep low temperature, circulation stopping and low flow unilateral cerebral perfusion, cutting off a pre-connected communicating pipe 3 through a blood blocking piece 4 after the trunk support is released, and restoring distal blood supply through femoral artery intubation so as to finish the deep low temperature circulation stopping and circulation, and anastomosing the near end of the trunk support with the far end of a main blood vessel 8 of a four-branch blood vessel under the condition of restoring the distal blood supply; under the condition that the anastomosis is nearly finished, the femoral artery perfusion is suspended, the connection between the communicating pipe 3 and the coated pipe 2 is released to separate the communicating pipe 3 and the coated pipe, the remaining anastomosis operation is quickly finished, the near end of the main four-branch blood vessel 8 is blocked after the operation is finished, and the far end perfusion is recovered; therefore, through the trunk support assembly, the blood blocking structure can be applied to the anastomosis process of the trunk support and the far end of the main vessel 8 of the four-branch vessel, thereby effectively shortening the time of deep low temperature and stopping circulation and improving the curative effect of the operation.
According to general statistics, the operation of the trunk support implanting system is shortened from 20-30 minutes of the prior operation to 3-5 minutes in the deep hypothermia and circulatory arrest time, which is of great significance to cardiovascular operations with minutes and seconds.
Finally, the principle and embodiments of the present invention are explained by using specific examples, and the above descriptions of the examples are only used to help understand the core idea of the present invention, and the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified examples also fall into the protection scope of the present invention.
Claims (10)
1. The trunk support assembly capable of blocking blood comprises a metal support with a self-expansion structure and a film coating tube for coating the metal support, wherein the length of the film coating tube is greater than that of the metal support, and a support-free section is formed at the upper end of the film coating tube; the method is characterized in that:
the trunk support assembly also comprises a communicating pipe and a blood blocking piece; the communicating pipe is of a flexible pipe structure, one end of the communicating pipe extends into the interior of the non-support section and is detachably connected to the inner wall of the non-support section; the blood blocking piece is detachably connected to the outer wall of the communicating pipe, the blood blocking piece is connected to the communicating pipe, then the inner wall of the communicating pipe is attached to form a closed portion for blocking the inner cavity of the communicating pipe, and the communicating pipe returns to the original shape after the blood blocking piece is detached.
2. The assembly of claim 1, wherein the nose piece assembly further comprises:
the lower end of the communicating pipe is sewed on the inner wall of the non-bracket section through a suture, and the suture is knotted at the outer side of the film covering pipe.
3. The assembly of claim 1, wherein the nose piece assembly further comprises:
the length of the communicating pipe is 30-50mm, and the lower end of the communicating pipe is connected to the middle part of the non-support section or the position below the middle part.
4. The assembly of claim 1, wherein the nose piece assembly further comprises:
the communicating pipe is of an artificial blood vessel structure.
5. The assembly of claim 1, wherein the nose piece assembly further comprises:
the blood blocking piece is of a pipe clamp structure or a wire binding structure.
6. An elephant's nasal stent implantation system, characterized by:
comprises a trunk support component, an extracorporeal circulation machine, a first blood conveying pipe, a second blood conveying pipe and a third blood conveying pipe;
one end of the first blood transfusion tube is used for being butted with the right atrium of the human body, the other end of the first blood transfusion tube is used for being butted with the inlet end of the extracorporeal circulation machine, one end of the second blood transfusion tube is used for being butted with the first outlet end of the extracorporeal circulation machine, the other end of the second blood transfusion tube is used for being butted with the right axillary artery of the human body, one end of the third blood transfusion tube is used for being butted with the second outlet end of the extracorporeal circulation machine, and the other end of the third blood transfusion tube is used for being butted with the femoral artery of the human body;
the trunk support assembly comprises a metal support with a self-expansion structure, a coating tube for coating the metal support, a communicating tube and a blood blocking piece, wherein the length of the coating tube is greater than that of the metal support, and a non-support section is formed at the upper end of a coating; the communicating pipe is of a flexible pipe structure, one end of the communicating pipe extends into the interior of the non-support section and is detachably connected to the inner wall of the non-support section; the blood blocking piece is detachably connected to the outer wall of the communicating pipe, the blood blocking piece is connected to the communicating pipe, then the inner wall of the communicating pipe is attached to form a closed portion for blocking the inner cavity of the communicating pipe, and the communicating pipe returns to the original shape after the blood blocking piece is detached.
7. The assembly of claim 6, wherein the nose piece assembly further comprises:
the lower end of the communicating pipe is sewed on the inner wall of the non-bracket section through a suture, and the suture is knotted at the outer side of the film covering pipe.
8. The assembly of claim 6, wherein the nose piece assembly further comprises:
the length of the communicating pipe is 30-50mm, and the lower end of the communicating pipe is connected to the middle part of the non-support section or the position below the middle part.
9. The assembly of claim 6, wherein the nose piece assembly further comprises:
the communicating pipe is of an artificial blood vessel structure.
10. The assembly of claim 6, wherein the nose piece assembly further comprises:
the blood blocking piece is of a pipe clamp structure or a wire binding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782856.9A CN113499164B (en) | 2021-07-12 | 2021-07-12 | Trunk support implanting system |
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| CN113499164B (en) | 2022-08-16 |
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