CN110548185A - Artificial heart outlet pipeline rotating anastomosis joint - Google Patents
Artificial heart outlet pipeline rotating anastomosis joint Download PDFInfo
- Publication number
- CN110548185A CN110548185A CN201910974755.4A CN201910974755A CN110548185A CN 110548185 A CN110548185 A CN 110548185A CN 201910974755 A CN201910974755 A CN 201910974755A CN 110548185 A CN110548185 A CN 110548185A
- Authority
- CN
- China
- Prior art keywords
- tubular structure
- joint
- supporting part
- artificial heart
- side wall
- 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.)
- Granted
Links
- 230000003872 anastomosis Effects 0.000 title claims description 16
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 8
- 230000017531 blood circulation Effects 0.000 abstract description 12
- 239000002861 polymer material Substances 0.000 description 3
- 210000000709 aorta Anatomy 0.000 description 2
- 239000002473 artificial blood Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 208000025494 Aortic disease Diseases 0.000 description 1
- 208000027896 Aortic valve disease Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 238000012404 In vitro experiment Methods 0.000 description 1
- 230000007012 clinical effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
Abstract
A rotating anastomotic joint of an outlet pipeline of an artificial heart belongs to the field of biomedical engineering. Comprises a supporting part and a connecting joint; the supporting part and the connecting joint are integrated; the supporting part is a part of an open arc of the side wall of the long tubular structure, the central radian of the supporting part corresponding to the side wall of the long tubular structure is 60-120 degrees, and the supporting part is used for being attached to the outer side surface of the connecting blood vessel; the whole connecting joint is of a tubular structure and is used for connecting an artificial heart output tube, the tubular port of the connecting joint is connected and communicated with the side wall of the tubular structure of the supporting part in a diagonal rotation mode, the central axis of the tubular structure of the supporting part is not coplanar with the central axis of the connecting joint, a distance is reserved between the central axis of the tubular structure of the supporting part and the central axis of the connecting joint, an included angle theta is smaller than 90 degrees, and the distance between the central axes is smaller than or equal to 30% of the radius of the tubular structure. The flow direction of the artificial heart blood flow is changed by adjusting the distance between the two central shafts and the angle of the included angle between the two central shafts, so as to form the swirling blood flow.
Description
Technical Field
The invention relates to a rotary anastomosis joint for an outlet pipeline of an artificial heart, belonging to the field of biomedical engineering.
Background
The artificial heart has become one of the effective methods for treating heart failure, and the aortic valve diseases and the high incidence of the aortic diseases during the use greatly limit the clinical application of the artificial heart. Earlier studies have shown that the addition of a swirling flow component to the outflow of blood from an artificial heart can effectively reduce the risk of valve and aortic complications. Therefore, patent 2008102229630 discloses an artificial blood vessel with a bias flow guide, which can generate a swirling blood flow to reduce the impact on the blood vessel. Similarly, the patent 2014106871839 discloses a conical helical small-bore artificial blood vessel capable of generating swirling flow, which can generate a certain degree of swirling blood flow and reduce the risk of vascular complications. Although the above invention reduces the valve and aortic complications to some extent, the following problems still remain. First, the swirling flow degree generated in the above invention is greatly influenced by the blood flow velocity, and it cannot be considered to adjust the strength of the swirling blood flow, and it cannot generate the swirling blood flow most matched with the aortic blood flow according to the physiological structure of the patient's aorta. Secondly, the actual clinical effect of the device of the invention is directly influenced by the anastomosis angle and position of the doctor, and the doctor cannot accurately control the actual anastomosis angle. The above problems limit the clinical application and reliability of artificial hearts.
Disclosure of Invention
In order to solve the problems, the invention provides a rotary anastomosis joint for an outlet pipeline of an artificial heart.
The technical solution adopted by the present invention to solve the technical problem is specifically referred to fig. 1 and fig. 2.
A rotary anastomosis joint of an outlet pipeline of an artificial heart comprises a supporting part (1) and a connecting joint (2); the supporting part (1) and the connecting joint (2) are integrated; the supporting part (1) is a part of an open arc of the side wall of the long tubular structure, the central radian of the supporting part (1) corresponding to the side wall of the long tubular structure is more than or equal to 60 degrees and less than or equal to 120 degrees, and the supporting part (1) is used for being attached to the outer side surface of the connecting blood vessel; the whole connecting joint (2) is of a tubular structure and is used for connecting an artificial heart output tube, a tubular port of the connecting joint (2) is connected and communicated with the side wall of the tubular structure of the supporting part (1) in an oblique rotation mode, a central shaft of the tubular structure of the supporting part (1) is not coplanar with a central shaft of the connecting joint (2) and has a distance, an included angle theta is formed between the two central shafts, and the included angle theta is smaller than 90 degrees and preferably ranges from 15 degrees to 75 degrees; the distance between the two central axes is less than or equal to 30 percent of the radius of the tubular structure of the connecting joint (2), and is preferably 15 to 30 percent.
Finally, the connecting part of the supporting part (1) and the connecting joint (2) is formed by embedding the side wall of the long tubular structure of the supporting part (1) and the connecting joint (2) into the side wall of the tubular structure of the connecting joint (2) according to the mode, the connecting common area is lost, and the central inner part of the tubular structure of the connecting joint (2) is communicated with the central inner part of the corresponding long tubular structure of the supporting part (1).
The flow direction of the artificial heart blood flow is changed by adjusting the distance between the two central shafts and the angle of the included angle between the two central shafts, so as to form the swirling blood flow. The supporting part (1) and the connecting joint (2) are both made of hard high polymer materials, the supporting part is made of high polymer materials with good biocompatibility, and the connecting joint is made of high polymer materials and is provided with a groove for fixing an outlet pipeline of the artificial heart.
Drawings
Fig. 1 is a perspective view of the artificial heart outlet conduit rotary anastomosis joint.
Fig. 2 is a top view of fig. 1.
1. A support portion; 2. and connecting the joints.
FIG. 3 is a simplified diagram of the structure of the artificial heart outlet conduit rotary anastomosis joint of the present invention.
A is a schematic view of the joint of the support part and the connecting joint; b is a three-dimensional schematic view of the artificial heart outlet pipeline rotating anastomosis joint, and C is a front view.
Detailed Description
The present invention will be further illustrated with reference to the following examples, but the present invention is not limited to the following examples.
Example 1
The invention relates to a rotating anastomosis joint of an outlet pipeline of an artificial heart, which is shown in figures 1 and 2 and comprises a supporting part (1) and a connecting joint (2); the supporting part (1) and the connecting joint (2) are integrated; the supporting part (1) is a part of an open arc on the side wall of the long tubular structure, and the supporting part (1) is attached to the outer side surface of the connecting blood vessel; the whole connecting joint (2) is of a tubular structure and is used for connecting an artificial heart output tube, a tubular port of the connecting joint (2) is connected and communicated with the side wall of the tubular structure of the supporting part (1) in an oblique rotation mode, a central shaft of the tubular structure of the supporting part (1) and a central shaft of the connecting joint (2) are not coplanar and have a distance, and an included angle theta is formed between the two central shafts; the distance between the two central axes is less than or equal to 30 percent of the radius of the tubular structure of the connecting joint (2).
Finally, the connecting part of the supporting part (1) and the connecting joint (2) is formed by embedding the side wall of the long tubular structure of the supporting part (1) and the connecting joint (2) into the side wall of the tubular structure of the connecting joint (2) according to the mode, the connecting common area is lost, and the central inner part of the tubular structure of the connecting joint (2) is communicated with the central inner part of the corresponding long tubular structure of the supporting part (1).
The length of the supporting part is 20mm, the diameter of the tubular structure corresponding to the supporting part is 20mm, and the central radian corresponding to the cross section is 120 degrees; the diameter of the connecting joint is 12mm, the included angles between the connecting joint and the two central axes of the supporting part are 15 degrees, 30 degrees, 60 degrees and 90 degrees, and the distance between the two central axes is 5 mm.
Through in vitro experiments and animal experimental researches, the joint can generate obvious swirling blood flow, so that swirling blood flow suitable for the aorta can be generated. In vitro data were obtained by measuring the swirling of blood through the joint using vorticity, which is a hydrodynamic moderate amount of fluid swirling strength, as an indicator, and selecting a plane 10mm downstream of the joint that is perpendicular to the axial direction of the blood vessel as the measurement plane. The results of the experiments are shown in Table 1.
Claims (5)
1. A rotary anastomosis joint for an outlet pipeline of an artificial heart is characterized by comprising a supporting part (1) and a connecting joint (2); the supporting part (1) and the connecting joint (2) are integrated; the supporting part (1) is a part of an open arc of the side wall of the long tubular structure, the central radian of the supporting part (1) corresponding to the side wall of the long tubular structure is more than or equal to 60 degrees and less than or equal to 120 degrees, and the supporting part (1) is used for being attached to the outer side surface of the connecting blood vessel; the whole connecting joint (2) is of a tubular structure and is used for connecting an artificial heart output tube, the tubular port of the connecting joint (2) is connected and communicated with the side wall of the tubular structure of the supporting part (1) in an oblique rotating mode, the central axis of the tubular structure of the supporting part (1) is not coplanar with the central axis of the connecting joint (2), a distance is reserved between the central axis of the tubular structure of the supporting part (1) and the central axis of the connecting joint (2), and an included angle theta is formed between the two central axes and is smaller.
2. The artificial heart outlet conduit swirl anastomosis joint according to claim 1, wherein the central axes subtend an angle θ of from 15 ° to 75 °.
3. An artificial heart outlet conduit circumgyrating anastomosis joint according to claim 1, characterised in that the distance between the two central axes is less than or equal to 30% of the radius of the tubular structure of the connection joint (2).
4. An artificial heart outlet conduit circumgyrating anastomosis joint according to claim 1, characterised in that the distance between the two central axes is equal to or less than 15-30% of the radius of the tubular structure of the connection joint (2).
5. An artificial heart outlet conduit rotating anastomosis joint, according to claim 1, characterized in that, finally, at the junction between the supporting portion (1) and the connection joint (2), the side wall of the long tubular structure of the supporting portion (1) and the side wall of the long tubular structure of the connection joint (2) are embedded into the side wall of the tubular structure of the connection joint (2) in the above-mentioned manner, and the common region of the connection is absent, so that the inner part of the center of the tubular structure of the connection joint (2) is communicated with the inner part of the center of the corresponding long tubular structure of the supporting portion (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111988893 | 2018-10-15 | ||
| CN201811198889.3A CN109303939A (en) | 2018-10-15 | 2018-10-15 | A kind of artificial heart outlet conduit turn anastomosis connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110548185A true CN110548185A (en) | 2019-12-10 |
| CN110548185B CN110548185B (en) | 2024-03-19 |
Family
ID=65224322
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811198889.3A Pending CN109303939A (en) | 2018-10-15 | 2018-10-15 | A kind of artificial heart outlet conduit turn anastomosis connector |
| CN201910974755.4A Active CN110548185B (en) | 2018-10-15 | 2019-10-14 | Artificial heart outlet pipeline rotary anastomosis joint |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811198889.3A Pending CN109303939A (en) | 2018-10-15 | 2018-10-15 | A kind of artificial heart outlet conduit turn anastomosis connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109303939A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546499A (en) * | 1982-12-13 | 1985-10-15 | Possis Medical, Inc. | Method of supplying blood to blood receiving vessels |
| US4795446A (en) * | 1986-01-30 | 1989-01-03 | Sherwood Medical Company | Medical tube device |
| CN1123649A (en) * | 1994-10-27 | 1996-06-05 | 布川三樱子 | Artificial blood vessel |
| US6007576A (en) * | 1998-02-06 | 1999-12-28 | Mcclellan; Scott B. | End to side anastomic implant |
| CA2379175A1 (en) * | 1999-07-16 | 2001-01-25 | World Heart Corporation | Conduit for a mechanical circulatory device |
| US20030065344A1 (en) * | 2001-10-03 | 2003-04-03 | Kirsch Wolff M. | Method and device for creating microvascular anastomoses |
| US20090043377A1 (en) * | 2003-01-14 | 2009-02-12 | The Cleveland Clinic Foundation | Branched Vessel Endoluminal Device |
| CN101385667A (en) * | 2008-09-24 | 2009-03-18 | 北京航空航天大学 | Artificial blood vessel with bias current guide |
| CN101536922A (en) * | 2009-04-17 | 2009-09-23 | 北京航空航天大学 | Blood vessel anastomat |
| CN103619369A (en) * | 2011-05-16 | 2014-03-05 | 柏林心脏有限公司 | Connection system for creating a connection channel for bodily fluids |
| US20150196321A1 (en) * | 2014-01-14 | 2015-07-16 | Bivacor Pty Ltd | Cannula |
| RU2644937C1 (en) * | 2017-05-03 | 2018-02-14 | Федеральное государственное бюджетное учреждение "Национальный медицинский исследовательский центр сердечно-сосудистой хирургии имени А.Н. Бакулева" Министерства здравоохранения Российской Федерации (ФГБУ "НМИЦ ССХ им. А.Н. Бакулева" Минздрава России) | Method for forming rast anastomosis at the reconstruction of the right ventricular exit sites by extracardyal conduit in children with congenital heart diseases without pulmonary stem |
| CN211962700U (en) * | 2018-10-15 | 2020-11-20 | 北京工业大学 | Artificial heart outlet pipeline rotating anastomosis joint |
-
2018
- 2018-10-15 CN CN201811198889.3A patent/CN109303939A/en active Pending
-
2019
- 2019-10-14 CN CN201910974755.4A patent/CN110548185B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546499A (en) * | 1982-12-13 | 1985-10-15 | Possis Medical, Inc. | Method of supplying blood to blood receiving vessels |
| US4795446A (en) * | 1986-01-30 | 1989-01-03 | Sherwood Medical Company | Medical tube device |
| CN1123649A (en) * | 1994-10-27 | 1996-06-05 | 布川三樱子 | Artificial blood vessel |
| US6007576A (en) * | 1998-02-06 | 1999-12-28 | Mcclellan; Scott B. | End to side anastomic implant |
| CA2379175A1 (en) * | 1999-07-16 | 2001-01-25 | World Heart Corporation | Conduit for a mechanical circulatory device |
| US20030065344A1 (en) * | 2001-10-03 | 2003-04-03 | Kirsch Wolff M. | Method and device for creating microvascular anastomoses |
| US20090043377A1 (en) * | 2003-01-14 | 2009-02-12 | The Cleveland Clinic Foundation | Branched Vessel Endoluminal Device |
| CN101385667A (en) * | 2008-09-24 | 2009-03-18 | 北京航空航天大学 | Artificial blood vessel with bias current guide |
| CN101536922A (en) * | 2009-04-17 | 2009-09-23 | 北京航空航天大学 | Blood vessel anastomat |
| CN103619369A (en) * | 2011-05-16 | 2014-03-05 | 柏林心脏有限公司 | Connection system for creating a connection channel for bodily fluids |
| US20150196321A1 (en) * | 2014-01-14 | 2015-07-16 | Bivacor Pty Ltd | Cannula |
| RU2644937C1 (en) * | 2017-05-03 | 2018-02-14 | Федеральное государственное бюджетное учреждение "Национальный медицинский исследовательский центр сердечно-сосудистой хирургии имени А.Н. Бакулева" Министерства здравоохранения Российской Федерации (ФГБУ "НМИЦ ССХ им. А.Н. Бакулева" Минздрава России) | Method for forming rast anastomosis at the reconstruction of the right ventricular exit sites by extracardyal conduit in children with congenital heart diseases without pulmonary stem |
| CN211962700U (en) * | 2018-10-15 | 2020-11-20 | 北京工业大学 | Artificial heart outlet pipeline rotating anastomosis joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109303939A (en) | 2019-02-05 |
| CN110548185B (en) | 2024-03-19 |
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