CN109966014A - Fontan circulatory assit system based on Venturi effect - Google Patents
Fontan circulatory assit system based on Venturi effect Download PDFInfo
- Publication number
- CN109966014A CN109966014A CN201910375298.7A CN201910375298A CN109966014A CN 109966014 A CN109966014 A CN 109966014A CN 201910375298 A CN201910375298 A CN 201910375298A CN 109966014 A CN109966014 A CN 109966014A
- Authority
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- China
- Prior art keywords
- main body
- body tube
- suture ring
- fontan
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 title claims abstract description 40
- 238000003780 insertion Methods 0.000 claims abstract description 21
- 230000037431 insertion Effects 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims description 3
- 230000004088 pulmonary circulation Effects 0.000 abstract description 5
- 201000010099 disease Diseases 0.000 abstract description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000004083 survival effect Effects 0.000 abstract description 3
- 208000035965 Postoperative Complications Diseases 0.000 abstract description 2
- 230000001435 haemodynamic effect Effects 0.000 abstract description 2
- 239000008280 blood Substances 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 210000001147 pulmonary artery Anatomy 0.000 description 6
- 210000000709 aorta Anatomy 0.000 description 4
- 210000005241 right ventricle Anatomy 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 210000002620 vena cava superior Anatomy 0.000 description 2
- 241001468684 Diplocardia Species 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- 206010045545 Univentricular heart Diseases 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 210000002376 aorta thoracic Anatomy 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 201000006370 kidney failure Diseases 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
Classifications
-
- 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
-
- 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
- A61F2002/068—Modifying the blood flow model, e.g. by diffuser or deflector
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of, and the Fontan circulatory assit system based on Venturi effect includes main body tube, suture ring, insertion tube；The main body tube is whole in a tubular form, and the caliber of the main body tube head gradually becomes smaller；Suture ring is fixedly connected at the nozzle of the main body tube head；The suture ring is annular in shape, and described suture ring one end is connected with the head seal of main body tube, the other end is sealedly connected with insertion tube；The insertion tube is cylindrical；Suture ring is fixedly connected at the tail portion nozzle of the main body tube, described suture ring one end and the tail portion sealed connection of main body tube, the other end are sealedly connected with insertion tube.Its advantage is shown: the application of venturi conduit of the present invention can reduce superior and inferior vena cave pressure, increase pulmonary circulation flow, improve Fontan haemodynamics；The disease incidence for reducing Fontan patient's postoperative complications, improves the long term survival rate of patient.
Description
Technical field
The present invention relates to the field of medical instrument technology, specifically, being a kind of Fontan circulation based on Venturi effect
Auxiliary system.
Background technique
The right heart is spacious to set unique scheme that art (Fontan) is current treatment functional single ventricle, it is by superior and inferior vena cave
Blood drain directly into pulmonary artery, without passing through the effect of right ventricle " pump ".Though repeatedly being improved, surgical outcome improves bright
It is aobvious, but postoperative long-term survival rate is not good enough, and there is thoracic cavity and hydropericardium, protein-lost bowel disease, liver in nearly all patient
The complication such as renal failure, heart failure need heart transplant, quality of life and service life far below just more than half patient
Ordinary person group.Basic reason is that Fontan operation lacks the pump blood effect of right ventricle, i.e. pulmonary circulation lacks energy supply.
Therefore, it is badly in need of right ventricle pump blood effect in a kind of raising Fontan operation, i.e. raising pulmonary circulation energy supply at present
Device.
Chinese patent literature: CN207520763U, publication date: 2018.06.22 is disclosed a kind of with Venturi effect
High-efficient reverse blowing system；The confluence ejector pipe of connection is chamfer including shape of a saddle top plate and therewith, and the confluence ejector pipe includes
Taper type pipe and cylindrical tube two parts, the taper type pipe and cylindrical tube are coaxial, the direction and frustum of gas ejection ports
Point-blank, the cylindrical tube and shape of a saddle top plate scarf are ellipse, described in the axle center of shape pipe and cylindrical tube
Gas ejection ports be fixed on cylindrical tube axle center and the elliptical point of intersection.
Chinese patent literature: CN102641525A, publication date: 2012.08.22 discloses a kind of external diplocardia of multipurpose
Room circulatory assit pulsation type blood pump, the blood pump include the round-trip double pumping chamber squeezer of program-controlled straight line, left and right side spherical shape pump chamber and attached
Input and output interfaces, external control valve, external control valve synchronization modulation part, driven by shaking component, the left and right side spherical shape pump chamber is by journey
It controls the round-trip pump chamber squeezer driving of straight line to squeeze, external control valve is adjusted by external control valve synchronization modulation part and run.Driven by shaking group
Part is placed in the rear side of the round-trip double pumping chamber squeezer of straight line.
But it yet there are no report about a kind of Fontan circulatory assit system based on Venturi effect of the invention.
Summary of the invention
The Fontan circulatory assit system based on Venturi effect that it is an object of the present invention to provide a kind of.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of Fontan circulatory assit system based on Venturi effect, the Fontan based on Venturi effect are followed
Ring auxiliary system includes main body tube (1), suture ring (2), insertion tube (3)；The main body tube (1) is whole in a tubular form, the master
The caliber on body pipe (1) head gradually becomes smaller；Suture ring (2) are fixedly connected at the nozzle on the main body tube (1) head；It is described
Suture ring (2) it is annular in shape, described suture ring (2) one end connects with the head seal of main body tube (1), other end sealing connects
It is connected to insertion tube (3)；The insertion tube (3) is cylindrical；Suture is fixedly connected at the tail portion nozzle of the main body tube (1)
The tail portion of ring (2), the suture ring (2) one end and main body tube (1) is tightly connected, the other end is sealedly connected with insertion tube (3).
The Fontan circulatory assit system based on Venturi effect is an integral molding structure.
The invention has the advantages that:
1, the application of venturi conduit of the present invention can reduce superior and inferior vena cave pressure, increase pulmonary circulation flow, improve
Fontan haemodynamics.
2, the present invention reduces the disease incidence of Fontan patient's postoperative complications, improves the long term survival rate of patient.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram one of Fontan circulatory assit system based on Venturi effect.
Attached drawing 2 is a kind of structural schematic diagram two of Fontan circulatory assit system based on Venturi effect.
Attached drawing 3 is a kind of cross-sectional view of Fontan circulatory assit system based on Venturi effect.
Attached drawing 4 is a kind of use schematic diagram of Fontan circulatory assit system based on Venturi effect.
Attached drawing 5 is a kind of use plan view of Fontan circulatory assit system based on Venturi effect.
Attached drawing 6 is the partial enlarged view in the portion A in Fig. 5.
Attached drawing 7 is the cross-sectional view of another Fontan circulatory assit system based on Venturi effect.
Specific embodiment
Below with reference to embodiment and referring to attached drawing, the invention will be further described.
Appended drawing reference involved in attached drawing and component part are as follows:
1, main body tube
2, suture ring
3, insertion tube
4, superior vena cava
5, inferior caval vein
6, right pulmonary artery
7, left pulmonary artery
8, aorta ascendens
9, descending aorta
10, suture
11, upper pipes
12, lower end pipe
13, insert port
Embodiment 1
Attached drawing 1 is please referred to, attached drawing 1 is a kind of Fontan circulatory assit system based on Venturi effect of the present embodiment
Structural schematic diagram one.The Fontan circulatory assit system based on Venturi effect include main body tube (1), suture ring (2),
Insertion tube (3)；
Attached drawing 2 is please referred to, attached drawing 2 is a kind of Fontan circulatory assit system based on Venturi effect of the present embodiment
Structural schematic diagram two.The main body tube (1) is whole in a tubular form, and the caliber on main body tube (1) head gradually becomes smaller；Described
Suture ring (2) are fixedly connected at the nozzle on main body tube (1) head；The suture ring (2) suture ring annular in shape, described
(2) one end is connected with the head seal of main body tube (1), the other end is sealedly connected with insertion tube (3)；The insertion tube (3) is in
Circular tube shaped；It is fixedly connected with suture ring (2) at the tail portion nozzle of the main body tube (1), the suture ring (2) one end and main body
The tail portion of pipe (1) is tightly connected, the other end is sealedly connected with insertion tube (3).
Attached drawing 3 is please referred to, attached drawing 3 is a kind of Fontan circulatory assit system based on Venturi effect of the present embodiment
Cross-sectional view.The Fontan circulatory assit system based on Venturi effect is an integral molding structure.
Embodiment 2
Attached drawing 7 is please referred to, attached drawing 7 is another Fontan circulatory assit system based on Venturi effect of the present embodiment
Cross-sectional view.
Fontan circulatory assit system described in the present embodiment based on Venturi effect and described in embodiment 1 based on text
The Fontan circulatory assit system of effect is essentially identical in mound, the difference is that main body tube (1).
The Fontan circulatory assit system based on Venturi effect includes main body tube (1), suture ring (2), insertion
It manages (3)；
The main body tube (1) is whole in a tubular form, and the main body tube (1) is by upper pipes (11) and lower end pipe (12) group
At；It is fixedly connected with suture ring (2) at the upper end tube nozzle of the upper pipes (11), is set at the lower end nozzle of the upper pipes (11)
There are insert port (13)；Lower end pipe (12) are inserted into the insert port (13)；The upper end tube nozzle of the lower end pipe (12) is inserted in
In insert port (13), the lower end caliber of the lower end pipe (12) is gradually become smaller；Consolidate at the lower end nozzle of the lower end pipe (12)
Surely suture ring (2) are connected with；Described suture ring (2) one end is connected with the lower end ferrule of lower end pipe (12), the other end is close
Envelope is connected with insertion tube (3)；
The length of the main body tube (1) can be adjusted, and can be adapted for different patients.
Embodiment 3
Attached drawing 4, attached drawing 5, attached drawing 6 are please referred to, attached drawing 4 is a kind of Fontan circulatory assit system based on Venturi effect
Use schematic diagram, attached drawing 5 is that a kind of Fontan circulatory assit system based on Venturi effect uses plan view, attached drawing 6
It is the partial enlarged view in the portion A in Fig. 5.
It should be understood that Venturi effect (venturi effect) refers to when fluid passes through the narrow of pipeline
The effect for causing the segment fluid flow static pressure to reduce.In the hydromechanical principle of continuity, incompressible fluid is passing through constriction
Flow velocity increases when mouth, and its static pressure reduces according to conservation of mechanical energy principle.Around this principle, we plan have height on a small quantity
The arterial blood of mechanical energy introduces Fontan surgical stapling position, drives the venous return of low energy to pulmonary artery.This research pair
The chamber lung anastomosis area of the postoperative infant of Fontan carries out three-dimensional reconstruction, and adds use the device of the invention on this basis.
The use process and method of the Fontan circulatory assit system based on Venturi effect:
Firstly, the insertion tube (3) on main body tube (1) head is inserted into superior vena cava (4), inferior caval vein (5), right pulmonary artery
(6), then the suture ring (2) on main body tube (1) head is stitched to by suture (10) in friendship by the position that left pulmonary artery (7) crosses
The position of remittance；The insertion tube (3) of main body tube (1) tail portion is inserted into aorta ascendens (8), then by the suture ring of main body tube (1) tail portion
(2) it is stitched to by suture (10) on aorta ascendens (8).
When the blood in aorta ascendens (8) is flowed into the position to cross by main body tube (1), due to main body tube (1) head
Portion's caliber is smaller, and velocity of blood flow is very fast herein；It is smaller can to show that main body tube (1) head goes out pressure according to Venturi effect.To
Assisted IV blood flows back into pulmonary circulation, forms the effect of right ventricle sample.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the principle of the present invention, can also make several improvement and supplement, these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (2)
1. a kind of Fontan circulatory assit system based on Venturi effect, which is characterized in that described based on Venturi effect
Fontan circulatory assit system include main body tube (1), suture ring (2), insertion tube (3)；The main body tube (1) is integrally in pipe
The caliber of shape, main body tube (1) head gradually becomes smaller；Suture is fixedly connected at the nozzle on the main body tube (1) head
Ring (2)；The suture ring (2) is annular in shape, and described suture ring (2) one end connects with the head seal of main body tube (1), is another
One end is sealedly connected with insertion tube (3)；The insertion tube (3) is cylindrical；It is fixed at the tail portion nozzle of the main body tube (1)
It is connected with suture ring (2), the tail portion of the suture ring (2) one end and main body tube (1) is tightly connected, the other end is sealedly connected with
Insertion tube (3).
2. the Fontan circulatory assit system according to claim 1 based on Venturi effect, which is characterized in that described
Fontan circulatory assit system based on Venturi effect is an integral molding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910375298.7A CN109966014A (en) | 2019-05-07 | 2019-05-07 | Fontan circulatory assit system based on Venturi effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910375298.7A CN109966014A (en) | 2019-05-07 | 2019-05-07 | Fontan circulatory assit system based on Venturi effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109966014A true CN109966014A (en) | 2019-07-05 |
Family
ID=67073001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910375298.7A Pending CN109966014A (en) | 2019-05-07 | 2019-05-07 | Fontan circulatory assit system based on Venturi effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109966014A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468080A (en) * | 2000-08-10 | 2004-01-14 | ���뼼����������˾ | Distally narrowed vascular grafts |
| CN101883539A (en) * | 2007-10-11 | 2010-11-10 | 米卢克斯控股股份有限公司 | Implantable tissue connector |
| CN202920776U (en) * | 2012-12-04 | 2013-05-08 | 中国医学科学院阜外心血管病医院 | Inflow pipeline of axial flow type left heart auxiliary pump |
| CN203493686U (en) * | 2013-09-04 | 2014-03-26 | 武汉杨森生物技术有限公司 | Artificial blood vessel anastomosis device |
| US20150025437A1 (en) * | 2013-07-18 | 2015-01-22 | Cryolife, Inc. | Vascular access system with connector |
| CN107432762A (en) * | 2013-03-08 | 2017-12-05 | 林弗洛公司 | There is provided or maintain the method and system of the fluid stream by body passage |
| CN108289986A (en) * | 2015-11-25 | 2018-07-17 | 柏林心脏有限公司 | Attachment device |
-
2019
- 2019-05-07 CN CN201910375298.7A patent/CN109966014A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468080A (en) * | 2000-08-10 | 2004-01-14 | ���뼼����������˾ | Distally narrowed vascular grafts |
| CN101883539A (en) * | 2007-10-11 | 2010-11-10 | 米卢克斯控股股份有限公司 | Implantable tissue connector |
| CN202920776U (en) * | 2012-12-04 | 2013-05-08 | 中国医学科学院阜外心血管病医院 | Inflow pipeline of axial flow type left heart auxiliary pump |
| CN107432762A (en) * | 2013-03-08 | 2017-12-05 | 林弗洛公司 | There is provided or maintain the method and system of the fluid stream by body passage |
| US20150025437A1 (en) * | 2013-07-18 | 2015-01-22 | Cryolife, Inc. | Vascular access system with connector |
| CN203493686U (en) * | 2013-09-04 | 2014-03-26 | 武汉杨森生物技术有限公司 | Artificial blood vessel anastomosis device |
| CN108289986A (en) * | 2015-11-25 | 2018-07-17 | 柏林心脏有限公司 | Attachment device |
Non-Patent Citations (1)
| Title |
|---|
| 朱放，温臣，施国丞等: "基于文丘里效应自身动力性 Fontan 的数值模拟", 中国胸心血管外科临床杂志, vol. 26, no. 0, pages 1 - 4 * |
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