CN110548185B - Artificial heart outlet pipeline rotary anastomosis joint - Google Patents
Artificial heart outlet pipeline rotary anastomosis joint Download PDFInfo
- Publication number
- CN110548185B CN110548185B CN201910974755.4A CN201910974755A CN110548185B CN 110548185 B CN110548185 B CN 110548185B CN 201910974755 A CN201910974755 A CN 201910974755A CN 110548185 B CN110548185 B CN 110548185B
- Authority
- CN
- China
- Prior art keywords
- supporting part
- tubular structure
- joint
- connecting joint
- artificial heart
- 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.)
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Links
- 230000003872 anastomosis Effects 0.000 title claims abstract description 15
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 8
- 239000002861 polymer material Substances 0.000 claims description 4
- 230000017531 blood circulation Effects 0.000 abstract description 9
- 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
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 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
- 230000000694 effects Effects 0.000 description 1
- 238000000338 in vitro 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
An artificial heart outlet pipeline rotary anastomosis joint belongs to the biomedical engineering field. 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 an oblique rotation mode, the central axis of the tubular structure of the supporting part is not coplanar with the central axis of the connecting joint and has a distance, an included angle theta between the two central axes is smaller than 90 degrees, and the distance between the two central axes is smaller than or equal to 30% of the radius of the tubular structure of the connecting joint. 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 rotating blood flow.
Description
Technical Field
The invention relates to a rotary anastomosis joint of an outlet pipeline of an artificial heart, and belongs to the field of biomedical engineering.
Background
Artificial heart has become one of the effective methods for treating heart failure, and the occurrence of aortic valve diseases and high incidence of aortic diseases during use has greatly limited the clinical application of artificial heart. Early studies showed that the addition of swirl flow components to the output blood stream of the artificial heart effectively reduced the risk of valve and aortic complications. For this reason, patent 2008102229630 discloses an artificial blood vessel with a bias flow guide, which can generate a swirling blood flow and reduce the impact on the blood vessel. Similarly, the 2014106871839 design of the patent provides a tapered spiral small-caliber artificial blood vessel capable of generating a swirling flow, which can generate a certain degree of swirling blood flow and reduce the risk of vascular complications. Although the above-described invention reduces valve and aortic complications to some extent, the following problems remain. First, the degree of swirling flow generated in the above-mentioned invention is greatly affected by the flow velocity of blood flow, and it cannot be considered that the intensity of swirling flow is adjusted, and the swirling flow which is most matched with the aortic flow cannot be generated according to the physiological structure of the patient's aorta. Secondly, the actual effect of the device in the invention in clinic is directly influenced by the anastomosis angle and the 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 scheme adopted by the invention for solving the technical problems is specifically referred to fig. 1 and 2.
The rotary anastomosis joint of the artificial heart outlet pipeline 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 center radian of the side wall of the supporting part (1) corresponding to 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 a 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 rotation mode, the central axis of the tubular structure of the supporting part (1) and the central axis of the connecting joint (2) are not coplanar and have a distance, an included angle theta is formed between the two central axes, and the included angle theta is smaller than 90 degrees, preferably 15-75 degrees; the distance between the two central shafts is less than or equal to 30 percent, preferably 15 to 30 percent, of the radius of the tubular structure of the connecting joint (2).
Finally, the joint 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, and the joint is missing in a common area, so that the inside of the center of the tubular structure of the connecting joint (2) is communicated with the inside of the center 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 rotating blood flow. The supporting part (1) and the connecting joint (2) are 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 an external appearance of a rotary anastomosis joint for an outlet duct of an artificial heart according to the present invention.
Fig. 2 is a top view of fig. 1.
1. A support part; 2. and (5) connecting joints.
FIG. 3 is a simplified diagram of the structure of the rotary anastomosis joint of the outlet duct of the artificial heart according to the present invention.
A is a schematic diagram of the joint of the supporting part and the connecting joint; b is a schematic perspective view of the rotary anastomosis joint of the outlet pipeline of the artificial heart, 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 rotary anastomosis joint of an artificial heart outlet pipeline, which is shown in figures 1 and 2 in detail, 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 arc of an opening of the side wall of the long tubular structure, 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 rotation mode, the central axis of the tubular structure of the supporting part (1) and the central axis of the connecting joint (2) are not coplanar and have a distance, and an included angle theta is formed between the two central axes; the distance between the two central shafts is less than or equal to 30% of the radius of the tubular structure of the connecting joint (2).
Finally, the joint 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, and the joint is missing in a common area, so that the inside of the center of the tubular structure of the connecting joint (2) is communicated with the inside of the center 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 section is 120 degrees; the diameter of the connecting joint is 12mm, the included angle between the connecting joint and the two central shafts of the supporting part is 15 degrees, 30 degrees, 60 degrees and 90 degrees, and the distance between the two central shafts is 5mm.
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 experimental data are as follows, the vortex quantity measuring the fluid rotation intensity in the fluid mechanics is used as an index to measure the rotation of blood passing through the joint, and a measuring plane is selected at the position 10mm below the joint and is perpendicular to the axial direction of the blood vessel. The experimental results are shown in table 1.
Claims (3)
1. The rotary anastomosis joint of the artificial heart outlet pipeline 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 center radian of the side wall of the supporting part (1) corresponding to 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 a 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 rotation mode, and the inside of the center of the tubular structure of the connecting joint (2) is communicated with the inside of the center of the corresponding long tubular structure of the supporting part (1); the central axis of the tubular structure of the supporting part (1) is not coplanar with the central axis of the connecting joint (2) and has a distance therebetween, and an included angle theta is formed between the two central axes and is smaller than 90 degrees; the distance between the two central shafts is less than or equal to 30% of the radius of the tubular structure of the connecting joint (2); the supporting part (1) and the connecting joint (2) are made of hard polymer materials.
2. A rotary anastomosis connection according to claim 1, wherein the angle θ between the central axes is 15 ° to 75 °.
3. A rotary anastomosis joint according to claim 1, wherein the distance between the two central axes is less than or equal to 15-30% of the radius of the tubular structure of the joint (2).
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 CN110548185A (en) | 2019-12-10 |
| CN110548185B true 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 (10)
| 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 |
| 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 |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030065344A1 (en) * | 2001-10-03 | 2003-04-03 | Kirsch Wolff M. | Method and device for creating microvascular anastomoses |
| US9125733B2 (en) * | 2003-01-14 | 2015-09-08 | The Cleveland Clinic Foundation | Branched vessel endoluminal device |
| US20150196321A1 (en) * | 2014-01-14 | 2015-07-16 | Bivacor Pty Ltd | Cannula |
-
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 (10)
| 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 |
| 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 |
| 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 |
| CN110548185A (en) | 2019-12-10 |
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