CN117357783A - Blood pump outlet connection structure - Google Patents
Blood pump outlet connection structure Download PDFInfo
- Publication number
- CN117357783A CN117357783A CN202311666647.3A CN202311666647A CN117357783A CN 117357783 A CN117357783 A CN 117357783A CN 202311666647 A CN202311666647 A CN 202311666647A CN 117357783 A CN117357783 A CN 117357783A
- Authority
- CN
- China
- Prior art keywords
- ring
- blood vessel
- blood pump
- pump outlet
- locking
- 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
- 239000008280 blood Substances 0.000 title claims abstract description 45
- 210000004369 blood Anatomy 0.000 title claims abstract description 45
- 239000002473 artificial blood Substances 0.000 claims abstract description 51
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 50
- 238000002788 crimping Methods 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 24
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 230000002861 ventricular Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003394 haemopoietic effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- A61M60/80—Constructional details other than related to driving
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/12—Tube connectors; Tube couplings for joining a flexible tube to a rigid attachment
Abstract
The invention provides a blood pump outlet connecting structure, which comprises an artificial blood vessel, wherein one end of the artificial blood vessel is clamped with a blood pump outlet pipe through a locking ring, and a boss used for being connected with the locking ring is arranged on the blood pump outlet pipe; the one end cover of artificial blood vessel has put first crimping ring, first crimping ring with be provided with the sealing washer between the artificial blood vessel, the cover has put the second crimping ring on the first crimping ring, the locking ring cover is arranged in on first crimping ring and the second crimping ring and with blood pump outlet connection. The beneficial effects of the invention are at least as follows: the structure of the invention takes the artificial blood vessel, the compression joint ring and the like as a whole, and can be assembled and sterilized in a factory in advance, so that a doctor can directly and one-step position through the locking ring during operation, the artificial blood vessel can be smoothly and quickly mounted on the blood pump, an external tool is not needed, and the connecting structure of the invention is safe and reliable, and the operation time is saved to a great extent.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a blood pump outlet connecting structure.
Background
Left ventricular assist devices, i.e., artificial blood pumps, are used to simulate the function of ventricular blood transfusion, pumping ventricular blood into the arterial system, functioning as a partial or complete replacement for cardiac function, known as artificial hearts. The blood pump is used for pumping blood and then is conveyed to an artery through an artificial blood vessel-reinforcing sleeve, the artificial blood vessel is responsible for conveying the blood, the reinforcing sleeve protects the blood vessel from deformation or even collapse of the blood vessel caused by extrusion of human tissues, normal conveying of the blood is affected, and the blood pump outlet pipe is connected with the artificial blood vessel-reinforcing sleeve through a special structure.
Since the human hematopoietic pump is placed in the human body, the overall size of the blood pump needs to be small in order to avoid unnecessary postoperative complications caused by squeezing the heart or peripheral tissues.
In the prior art, when in actual use, a doctor needs to sleeve the human hematopoietic tube on the blood pump outlet tube, and then the artificial blood vessel is hooped by other structures. Because of the limitation of the materials of the artificial blood vessel, the artificial blood vessel can be tightly matched with the blood pump outlet pipe only through interference fit, so that the operation difficulty of doctors is increased intangibly, and the artificial blood vessel is generally carried out by means of an external tool, so that the whole operation time is prolonged. Meanwhile, the existing structure cannot well judge whether the structure is assembled in place after the assembly is completed, and the risk of falling off or bleeding is easy to occur. Therefore, how to realize the rapid connection between the blood pump and the artificial blood vessel in a limited space becomes a technical problem to be solved at present.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the blood pump outlet connecting structure, which has a compact overall structure, and can quickly realize the connection between the artificial blood vessel and the blood pump outlet pipe when a doctor is in actual use, thereby effectively saving the operation time.
The aim of the invention is achieved by the following technical scheme:
the blood pump outlet connecting structure comprises an artificial blood vessel, wherein one end of the artificial blood vessel is clamped with a blood pump outlet pipe through a locking ring, and a boss used for being connected with the locking ring is arranged on the blood pump outlet pipe;
the blood pump is characterized in that a first compression ring is sleeved at one end of the artificial blood vessel, a sealing ring is arranged between the first compression ring and the artificial blood vessel, a second compression ring is sleeved on the first compression ring, and the locking ring is sleeved on the first compression ring and the second compression ring and connected with the blood pump outlet tube.
One end of the artificial blood vessel is provided with a flanging bending part which turns outwards, one end of the first crimping ring is inserted into the flanging bending part, the other end of the first crimping ring is concaved inwards to form an annular groove, and the sealing ring is arranged in the annular groove.
Preferably, the insertion end surface of the first crimp ring is provided with a reverse groove.
Preferably, the second pressure welding ring is sleeved on the flanging bending part of the artificial blood vessel to compress the insertion end of the artificial blood vessel and the first pressure welding ring, the section of the second pressure welding ring is L-shaped, one end of the second pressure welding ring compresses the flanging of the flanging bending part, and the other end of the second pressure welding ring is abutted to the port of the artificial blood vessel, so that the artificial blood vessel, the sealing ring, the first pressure welding ring and the second pressure welding ring are integrated.
Preferably, a strip-shaped locking groove is formed in one end of the locking ring, a notch for the boss to enter is formed in the locking groove, a locking elastic piece is arranged in the locking groove, the locking elastic piece extends from the middle of one side of the locking groove to the other side through the notch, the locking groove is divided into front and rear sides, and the notch is formed in the front side.
Preferably, the distal end of the locking spring is a bending end, the bending end is bent obliquely from the front side to the rear side, and the distance between the proximal end of the bending end and the front side is smaller than the diameter of the boss.
The beneficial effects of the invention are at least as follows: the structure of the invention takes the artificial blood vessel, the compression joint ring and the like as a whole, and can be assembled and sterilized in a factory in advance, so that a doctor can directly and one-step position through the locking ring during operation, the artificial blood vessel can be smoothly and quickly mounted on the blood pump, no external tool is needed, and the connecting structure of the invention is safe and reliable, and the operation time is saved to a great extent.
Drawings
Fig. 1 is a schematic diagram of a connection structure of the present invention after connection with a blood pump.
Fig. 2 is a schematic diagram of the explosive structure of fig. 1 according to the present invention.
Fig. 3 is a schematic structural view of the locking ring of the present invention.
Fig. 4 is a schematic view showing the connection structure after being connected to the boss alone.
FIG. 5 is a schematic view of the structure of the rear part of the section A-A in FIG. 4.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, fig. 1 to 5 and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention discloses a blood pump outlet connecting structure, which comprises an artificial blood vessel 1, wherein one end of the artificial blood vessel 1 is clamped with a blood pump outlet pipe 6 through a locking ring 5, and a boss 7 used for being connected with the locking ring 5 is arranged on the blood pump outlet pipe 6. In this embodiment, the boss 7 is disposed on a collar, and the collar is welded and fixed outside the blood pump outlet tube 6 by welding. The boss 7 is arranged on the lantern ring in a protruding mode, and two bosses are arranged.
The artificial blood vessel 1 is characterized in that a first compression joint ring 2 is sleeved at one end of the artificial blood vessel 1, a sealing ring 3 is arranged between the first compression joint ring 2 and the artificial blood vessel 1, a second compression joint ring 4 is sleeved on the first compression joint ring 2, and a locking ring 5 is sleeved on the first compression joint ring 2 and the second compression joint ring 4 and connected with a blood pump outlet tube 6.
Specifically, the one end of artificial blood vessel 1 is provided with the turn-ups bending portion 11 that turns over outwards, the one end of first crimping ring 2 is inserted and is located in the turn-ups bending portion 11, the indent of the other end forms an annular channel, sealing washer 3 is arranged in the annular channel, through sealing washer 3 further guarantees the leakproofness between first crimping ring 2 and the artificial blood vessel 1. To strengthen the connection tightness, the insertion end surface of the first crimp ring 2 is provided with a reverse groove 21.
The second crimping ring 4 is sleeved on the flanging bending part 11 of the artificial blood vessel 1 to compress the insertion ends of the artificial blood vessel 1 and the first crimping ring 2, the section of the second crimping ring 4 is L-shaped, one end of the second crimping ring is compressed on the flanging 111 of the flanging bending part 11, and the other end of the second crimping ring is abutted to the port of the artificial blood vessel 1, so that the artificial blood vessel 1, the sealing ring 3, the first crimping ring 2 and the second crimping ring 4 are integrated.
The locking ring 5 has one end provided with a bar-shaped locking groove 51, the locking groove 51 is provided with a notch 511 for the boss to enter, a locking spring piece 52 is arranged in the locking groove 51, the locking spring piece 52 extends from the middle of one side of the locking groove 51 to the other side after passing through the notch 511, the locking groove 51 is divided into a front side and a rear side, and the notch 511 is arranged on the front side.
The distal end of the locking spring 52 is a bending end 521, the bending end 521 is bent obliquely from the front side to the rear side, and the distance between the proximal end of the bending end 521 and the front side is smaller than the diameter of the boss 7.
When the locking ring 5 is connected with the boss, the boss 7 will first enter the front side of the locking groove 51 from the notch 511, when the locking ring 5 is rotated, the boss 7 will enter one side of the locking groove 51 and enter the distal end of the locking spring piece 52, when passing through the distal end of the locking spring piece, the locking spring piece will be extruded, and finally smoothly enter into the distal end gap between the bending end 521 and the front side of the locking groove 51, and the gap is smaller than the cross section of the boss 7 under the condition of no stress, so as to ensure that the locking is realized, the whole operation is convenient and quick during the assembly, and the required force is also smaller without using tools. Because the artificial blood vessel is made of the braided fabric, if the artificial blood vessel rotates circumferentially during use, the artificial blood vessel can be knotted, the blood flow is further influenced, thrombus is easy to generate, and in order to avoid the circumferential rotation of the artificial blood vessel, the bending direction of the bending end 521 is limited, so that the locking elastic sheet 52 and the boss 7 cannot axially fall off and rotate circumferentially.
The first crimp ring 2, the second crimp ring 4 and the assembly between the sealing ring 3 and the vascular prosthesis will be assembled as a whole inside the factory. When in use, a doctor can complete the installation after only sleeving the locking ring 5 on the boss 7 of the blood pump outlet tube 6 to rotate, thereby greatly reducing the installation work of the doctor and the installation complexity, and further saving the operation time.
Finally, it should be noted that: the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
And the above embodiments are only for illustrating the technical solution of the present invention, not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A blood pump outlet connection structure, characterized in that: the blood pump comprises an artificial blood vessel (1), wherein one end of the artificial blood vessel (1) is clamped with a blood pump outlet pipe (6) through a locking ring (5), and a boss (7) used for being connected with the locking ring (5) is arranged on the blood pump outlet pipe (6);
the blood pump is characterized in that a first compression joint ring (2) is sleeved at one end of the artificial blood vessel (1), a sealing ring (3) is arranged between the first compression joint ring (2) and the artificial blood vessel (1), a second compression joint ring (4) is sleeved on the first compression joint ring (2), and a locking ring (5) is sleeved on the first compression joint ring (2) and the second compression joint ring (4) and connected with a blood pump outlet tube (6).
2. A blood pump outlet connection structure according to claim 1, wherein: one end of the artificial blood vessel (1) is provided with a flanging bending part (11) which turns outwards, one end of the first crimping ring (2) is inserted into the flanging bending part (11), the other end of the first crimping ring is concaved inwards to form an annular groove, and the sealing ring (3) is arranged in the annular groove.
3. A blood pump outlet connection structure according to claim 2, wherein: the insertion end surface of the first crimping ring (2) is provided with a reverse groove (21).
4. A blood pump outlet connection structure according to claim 3, wherein: the second crimping ring (4) is sleeved on the flanging bending part (11) of the artificial blood vessel (1) to compress the insertion end of the artificial blood vessel (1) and the first crimping ring (2), the section of the second crimping ring (4) is L-shaped, one end of the second crimping ring is compressed on the flanging (111) of the flanging bending part (11), and the other end of the second crimping ring is abutted to the port of the artificial blood vessel (1), so that the artificial blood vessel (1), the sealing ring (3), the first crimping ring (2) and the second crimping ring (4) are integral.
5. A blood pump outlet connection structure according to claim 4, wherein: the locking device is characterized in that one end of the locking ring (5) is provided with a strip-shaped locking groove (51), the locking groove (51) is provided with a notch (511) used for a boss to enter, a locking elastic piece (52) is arranged in the locking groove (51), the locking elastic piece (52) extends from the middle of one side of the locking groove (51) to the other side through the notch (511) in a rear mode, the locking groove (51) is divided into a front side and a rear side, and the notch (511) is arranged on the front side.
6. A blood pump outlet connection structure according to claim 5, wherein: the distal end of the locking spring piece (52) is a bending end (521), the bending end (521) is obliquely bent from the front side to the rear side, and the distance between the proximal end of the bending end (521) and the front side is smaller than the diameter of the boss (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311666647.3A CN117357783B (en) | 2023-12-07 | 2023-12-07 | Blood pump outlet connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311666647.3A CN117357783B (en) | 2023-12-07 | 2023-12-07 | Blood pump outlet connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117357783A true CN117357783A (en) | 2024-01-09 |
| CN117357783B CN117357783B (en) | 2024-02-23 |
Family
ID=89393250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311666647.3A Active CN117357783B (en) | 2023-12-07 | 2023-12-07 | Blood pump outlet connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117357783B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346071B1 (en) * | 1999-07-16 | 2002-02-12 | World Heart Corporation | Inflow conduit assembly for a ventricular assist device |
| JP2011177428A (en) * | 2010-03-03 | 2011-09-15 | Mitsubishi Heavy Ind Ltd | Blood vessel connection device of artificial heart pump and artificial heart pump provided with the same |
| CN102357267A (en) * | 2011-08-31 | 2012-02-22 | 苏州同心医疗器械有限公司 | Outlet connecting mechanism of left ventricle assisting blood pump |
| US20150290370A1 (en) * | 2004-03-23 | 2015-10-15 | Correx, Inc. | Apparatus and method for forming a hole in a hollow organ, connecting a conduit to the hollow organ and connecting a left ventricular assist device (lvad) to the hollow organ |
| US20170000934A1 (en) * | 2013-12-27 | 2017-01-05 | Sun Medical Technology Research Corporation | Artificial-blood-vessel connector and artificial-blood-vessel unit |
| CN107781544A (en) * | 2016-08-24 | 2018-03-09 | 井上廉株式会社 | Pipe joint constructs |
| CN110022913A (en) * | 2016-12-01 | 2019-07-16 | 柏林心脏有限公司 | Intubation, intubation system and blood pump system |
| CN113143368A (en) * | 2021-04-06 | 2021-07-23 | 华融科创生物科技（天津）有限公司 | Vascular anastomosis device |
-
2023
- 2023-12-07 CN CN202311666647.3A patent/CN117357783B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346071B1 (en) * | 1999-07-16 | 2002-02-12 | World Heart Corporation | Inflow conduit assembly for a ventricular assist device |
| US20150290370A1 (en) * | 2004-03-23 | 2015-10-15 | Correx, Inc. | Apparatus and method for forming a hole in a hollow organ, connecting a conduit to the hollow organ and connecting a left ventricular assist device (lvad) to the hollow organ |
| JP2011177428A (en) * | 2010-03-03 | 2011-09-15 | Mitsubishi Heavy Ind Ltd | Blood vessel connection device of artificial heart pump and artificial heart pump provided with the same |
| CN102357267A (en) * | 2011-08-31 | 2012-02-22 | 苏州同心医疗器械有限公司 | Outlet connecting mechanism of left ventricle assisting blood pump |
| US20170000934A1 (en) * | 2013-12-27 | 2017-01-05 | Sun Medical Technology Research Corporation | Artificial-blood-vessel connector and artificial-blood-vessel unit |
| CN107781544A (en) * | 2016-08-24 | 2018-03-09 | 井上廉株式会社 | Pipe joint constructs |
| CN110022913A (en) * | 2016-12-01 | 2019-07-16 | 柏林心脏有限公司 | Intubation, intubation system and blood pump system |
| CN113143368A (en) * | 2021-04-06 | 2021-07-23 | 华融科创生物科技（天津）有限公司 | Vascular anastomosis device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117357783B (en) | 2024-02-23 |
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