CN117398595A - Blood pump outlet pipe connection structure - Google Patents
Blood pump outlet pipe connection structure Download PDFInfo
- Publication number
- CN117398595A CN117398595A CN202311723711.7A CN202311723711A CN117398595A CN 117398595 A CN117398595 A CN 117398595A CN 202311723711 A CN202311723711 A CN 202311723711A CN 117398595 A CN117398595 A CN 117398595A
- Authority
- CN
- China
- Prior art keywords
- ring
- blood pump
- pump outlet
- locking
- reinforcing sleeve
- 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 56
- 210000004369 blood Anatomy 0.000 title claims abstract description 56
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 41
- 239000002473 artificial blood Substances 0.000 claims abstract description 38
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000003394 haemopoietic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002861 ventricular Effects 0.000 description 2
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion 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
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
-
- 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
- A61M60/90—Details not provided for in groups A61M60/40, A61M60/50 or A61M60/80
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
Abstract
The invention provides a blood pump outlet pipe connecting structure, which comprises an artificial blood vessel, wherein a reinforcing sleeve is sleeved on the artificial blood vessel, a clamping ring is arranged between the reinforcing sleeve and the artificial blood vessel, the clamping ring and the reinforcing sleeve are connected by a lock ring in a locking manner, a convex ring is convexly arranged at the front end of the reinforcing sleeve towards the outer ring, a locking opening is formed at a port of the convex ring, a clamping groove is formed on the surface of the convex ring, and the clamping groove and the locking opening are arranged at intervals; one end of the clamping ring is provided with a locking notch groove corresponding to the locking notch on the reinforcing sleeve, the outer ring of the other end of the clamping ring is provided with threads, and the threads are symmetrically provided with flush sections. The beneficial effects of the invention are as follows: can be assembled quickly, so that a doctor can smoothly install the artificial blood vessel on the blood pump during operation. The connecting position with the blood pump outlet pipe is also more definite, not only easy to operate, but also the whole structure is safe and reliable, the operation time is greatly saved, and the blood pump outlet pipe is convenient to detach, for example, when a patient needs to perform a pump replacement operation, the connecting structure can be conveniently removed for replacement.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a blood pump outlet pipe connecting structure.
Background
The left ventricular assist device, namely an artificial blood pump, is also called an artificial heart, and has the main functions of pumping the blood of a ventricle into an arterial system through simulating ventricular blood transfusion to partially or completely replace the heart, wherein the main principle is that the blood pump pumps the blood and then conveys the blood 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, and the blood pump outlet pipe is connected with the artificial blood vessel-reinforcing sleeve through a special structure.
The artificial heart, as the name implies, needs to be placed in the chest of a person, but the chest space of the person is limited, so that the whole size of the human hematopoietic pump needs to be paid attention, if the artificial heart is too large, the artificial heart is easy to squeeze the heart or peripheral tissues, and the probability of postoperative complications is increased. When in use, parts such as an artificial blood vessel, a reinforcing sleeve and the like are required to be assembled on a blood pump outlet pipe by a doctor in the operation process, so that the reliability and the operational convenience of the position structure are also particularly important, the existing structure is complex to install, the artificial blood vessel made of a woven material is usually required to be sleeved on the blood pump outlet pipe firstly, then the blood pump outlet pipe is hooped by other fastening parts, the stability after assembly is ensured by means of an external tool in the whole operation process, the existing structure also cannot provide judgment on whether the doctor is in place or not, the situation that the doctor cannot be in place is easily caused, the operation time of the doctor is prolonged in an intangible way, and unnecessary blood seepage is brought due to the fact that the installation is not in place caused by complex installation, so that the blood pump outlet pipe is also a damage to a patient. Therefore, how to achieve a rapid and effective connection between a human hematopoietic pump and an artificial blood vessel has become a technical problem to be solved by the current minister.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a blood pump outlet pipe connecting structure which has a compact overall structure, is convenient and quick to operate, and can effectively save operation time.
The aim of the invention is achieved by the following technical scheme:
the blood pump outlet pipe connecting structure comprises an artificial blood vessel which is sleeved outside a blood pump outlet pipe, wherein a reinforcing sleeve is sleeved on the artificial blood vessel, a clamping ring is arranged between the reinforcing sleeve and the artificial blood vessel, and locking connection is realized between the clamping ring and the reinforcing sleeve through a locking ring.
Preferably, the front end of the reinforcing sleeve is convexly provided with a convex ring towards the outer ring, locking ports are uniformly distributed on ports of the convex ring, clamping grooves are formed in the surface of the convex ring, and the clamping grooves are arranged at intervals with the locking ports.
Preferably, a locking notch groove corresponding to the locking notch on the reinforcing sleeve is formed in one end of the clamping ring, threads are machined on the outer ring of the other end of the clamping ring, and a group of parallel and level sections are symmetrically arranged on the threads.
Preferably, the clamping ring is provided with an elastic opening, and the elastic opening extends from one end of the clamping ring to the other end of the clamping ring in a bending shape.
Preferably, the outer ring of the front end of the artificial blood vessel is coated with a metal reinforcing ring.
Preferably, an annular groove is formed in the inner wall of the locking groove end of the clamping ring, the front end of the artificial blood vessel is arranged in the annular groove, and a boss is inwards arranged at the bottom of the threaded end of the clamping ring.
Preferably, the lock ring is sleeved at the bottom of the convex ring of the reinforcing sleeve, and two ends of the lock ring are respectively embedded in the adjacent locking notch and the locking notch groove.
Preferably, the inner wall of the port at the locking end of the reinforcing sleeve is obliquely cut from inside to outside to form an inclined plane, and the diameter of the opening at the outer end of the inclined plane is larger than that of the opening at the inner end of the inclined plane.
Preferably, the outer underside of the locking notch end of the clamping ring is provided with a bevel, and the bevel is matched with the bevel in the reinforcing sleeve.
Preferably, the blood pump outlet pipe evagination is equipped with the go-between, the symmetry is provided with the tangent plane on the go-between, be provided with the distance between the root of go-between and blood pump outlet pipe, the symmetry is provided with a set of card post that is used for mutually matching with the fore shaft between the root of go-between and blood pump outlet pipe.
The beneficial effects of the invention are at least as follows: the connecting structure of the invention can rapidly complete assembly, so that doctors can smoothly install the artificial blood vessel on the blood pump during operation. The connecting position with the blood pump outlet pipe is also more definite, not only easy to operate, but also the whole structure is safe and reliable, the operation time is greatly saved, and the blood pump outlet pipe is convenient to detach, for example, when a patient needs to perform a pump replacement operation, the connecting structure can be conveniently removed for replacement.
Drawings
Fig. 1 is an assembled schematic view of the connecting structure of the present invention after being connected to a blood pump.
Fig. 2 is a schematic diagram of the connection structure of the present invention after the connection structure is detached from the blood pump.
Fig. 3 is a schematic view of a connection structure of the present invention.
Fig. 4 is a schematic view of the explosive structure of fig. 3 according to the present invention.
Fig. 5 is a schematic view of another direction structure of the invention after explosion of fig. 3.
Fig. 6 is a front view of fig. 3 in accordance with the present invention.
FIG. 7 is a schematic view of a portion of the structure of section A-A in FIG. 6.
Detailed Description
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 7 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 tube connecting structure, which comprises an artificial blood vessel 2 sleeved outside a blood pump outlet tube 1, wherein the outer ring of the front end of the artificial blood vessel 2 is coated with a metal reinforcing ring 21. The artificial blood vessel 2 is sleeved with a reinforcing sleeve 3, a clamping ring 4 is arranged between the reinforcing sleeve 3 and the artificial blood vessel 2, and locking connection is realized between the clamping ring 4 and the reinforcing sleeve 3 through a locking ring 5. The artificial blood vessel 2, the clamping ring 4, the reinforcing sleeve 3 and the locking ring 5 are assembled into a whole. The blood pump outlet pipe 1 is externally provided with a connecting ring 11, a distance is arranged between the connecting ring 11 and the root of the blood pump outlet pipe, and the connecting structure is sleeved on the connecting ring 11 and is axially connected with the blood pump outlet pipe 1.
Specifically, the front end of the reinforcing sleeve 3 is convexly provided with a convex ring 31 towards the outer ring, and locking ports 311 are uniformly distributed at the ports of the convex ring 31. The surface of the convex ring 31 is provided with a clamping groove 312, and the clamping groove 312 and the locking notch 311 are arranged at intervals. The locking ring 5 is sleeved at the bottom of the convex ring 31 of the reinforcing sleeve 3, and two ends are respectively and selectively embedded in the adjacent locking notch 311 or the clamping groove 312. When the locking ring is unlocked, the two ends of the locking ring 5 are arranged in the clamping grooves 312, when the locking is needed, the two ends of the locking ring 5 are taken out of the clamping grooves 312 and then are arranged in the locking openings 311 to be connected with the clamping ring 4, so that the circumferential rotation between the reinforcing sleeve 3 and the clamping ring 4 is avoided. Correspondingly, for limiting the circumferential rotation with the reinforcing sleeve 3, one end of the clamping ring 4 is provided with a locking slot 41 corresponding to the locking slot 311 on the reinforcing sleeve, and the locking slot 41 is also in an opening form.
The outer ring at the other end of the clamping ring 4 is provided with a thread 42 for locking, the clamping ring 4 is provided with an elastic opening 43, and the elastic opening 43 extends from one end of the clamping ring 4 to the other end of the clamping ring 4 in a bending shape. The elastic opening 43 allows the clamping ring 4 to be elastically stretched or contracted when pressed. In order to avoid damage to the reinforcing sleeve 3 caused by the over sharp interface of the threads 42, a set of flush sections 421 are symmetrically arranged on the threads 42.
An annular groove 44 is formed in the inner wall of the locking groove end of the clamping ring 4, the front end of the artificial blood vessel 2 is arranged in the annular groove 44, and a boss 45 is arranged inwards at the bottom of the threaded end of the clamping ring 4. When the artificial blood vessel 2 is connected with the clamping ring 4, the metal reinforcing ring 21 will firstly prop open the clamping ring 4 and put into the annular groove 44. When the artificial blood vessel 2 is sleeved on the blood pump outlet tube 1, the connecting ring 11 is placed in the annular groove 44 and is abutted with the metal reinforcing ring 21, so that the connection between the artificial blood vessel 2 and the blood pump outlet tube 1 is completed. In order to avoid circumferential rotation, the connecting ring 11 is symmetrically provided with a tangential plane 111, and a group of clamping posts 12 for matching with the locking notch are symmetrically arranged between the connecting ring 11 and the root of the blood pump outlet tube, and are placed in the locking notch groove 41 through the clamping posts 12.
To further ensure the tight connection between the artificial blood vessel 2 and the blood pump outlet tube 1 and between the clamping ring 4 and the artificial blood vessel 2, blood leakage is prevented, the inner wall of the port at the locking end of the reinforcing sleeve 3 is obliquely cut from inside to outside to form an inclined surface 32, and the diameter of the opening at the outer end of the inclined surface 32 is larger than that of the opening at the inner end of the inclined surface 32.
The outer underside of the notch end of the clamping ring 4 is provided with a second bevel 46, which second bevel 46 cooperates with the bevel 32 in the reinforcing sleeve 3 in the direction of inclination.
When the reinforcement sleeve 3 is turned in the direction of the outlet tube 1 of the blood pump, the bevel 32 will press against the second bevel 46, and at the same time, thanks to the presence of the elastic opening 43, the contraction of the clamping ring 4 can be facilitated more, thereby ensuring a tighter connection between the clamping ring 4 and the artificial blood vessel 2. When screwed into place, circumferential locking is accomplished by the end of the locking ring 5 being placed into the locking notch 311 and the notch groove 41.
All parts of the invention can be quickly assembled into a whole. Before leaving the factory, the artificial blood vessel, the clamping ring 4 and the reinforcing sleeve 3 are assembled into a whole after being sterilized, and when a doctor uses the artificial blood vessel, the connection between the artificial blood vessel and the blood pump outlet pipe can be completed only by directly sleeving the assembled product at the position of the connecting ring 11 of the artificial blood pump outlet pipe. Therefore, the installation work of doctors is greatly reduced, the installation complexity is reduced, the operation time is saved, and errors caused by the insertion length between the blood pump outlet tube 1 can not be generated.
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 (8)
1. Blood pump outlet tube connection structure, its characterized in that: the blood pump comprises an artificial blood vessel (2) sleeved outside a blood pump outlet tube (1), wherein a reinforcing sleeve (3) is sleeved on the artificial blood vessel (2), a clamping ring (4) is arranged between the reinforcing sleeve (3) and the artificial blood vessel (2), and the clamping ring (4) is in locking connection with the reinforcing sleeve (3) through a locking ring (5);
the front end of the reinforcing sleeve (3) is convexly provided with a convex ring (31) towards the outer ring, locking ports (311) are uniformly distributed at ports of the convex ring (31), clamping grooves (312) are formed in the surface of the convex ring (31), and the clamping grooves (312) and the locking ports (311) are arranged at intervals;
the clamping ring is characterized in that a locking notch groove (41) corresponding to the locking notch (311) on the reinforcing sleeve is formed in one end of the clamping ring (4), threads (42) are machined on the outer ring of the other end of the clamping ring (4), and a group of parallel and level sections (421) are symmetrically arranged on the threads (42).
2. The blood pump outlet tube connection structure according to claim 1, wherein: an elastic opening (43) is formed in the clamping ring (4), and the elastic opening (43) extends to the other end of the clamping ring (4) in a bent shape from one end of the clamping ring (4).
3. The blood pump outlet tube connecting structure according to claim 2, wherein: the outer ring of the front end of the artificial blood vessel (2) is coated with a metal reinforcing ring (21).
4. A blood pump outlet tube connection structure according to claim 3, wherein: an annular groove (44) is formed in the inner wall of the locking groove end of the clamping ring (4), the front end of the artificial blood vessel (2) is arranged in the annular groove (44), and a boss (45) is arranged at the bottom of the threaded end of the clamping ring (4) inwards.
5. The blood pump outlet tube connection structure according to claim 4, wherein: the lock ring (5) is sleeved at the bottom of the convex ring (31) of the reinforcing sleeve (3), and two ends of the lock ring are respectively embedded in the adjacent locking notch (311) and the locking notch groove (41).
6. The blood pump outlet tube connection structure of claim 5, wherein: the inner wall of the port at the locking port end of the reinforcing sleeve (3) is obliquely cut from inside to outside to form an inclined plane, and the diameter of the opening at the outer end of the inclined plane is larger than that of the opening at the inner end of the inclined plane.
7. The blood pump outlet tube connection structure according to claim 6, wherein: the lower side of the outer part of the locking notch groove end of the clamping ring (4) is provided with an inclined plane, and the inclined plane is matched with the inclined plane in the reinforcing sleeve (3).
8. The blood pump outlet tube connection structure of claim 7, wherein: the blood pump outlet pipe (1) evagination is equipped with go-between (11), the symmetry is provided with tangent plane (111) on go-between (11), be provided with the distance between the root of go-between (11) and blood pump outlet pipe, the symmetry is provided with a set of card post (12) that are used for mutually matching with the fore shaft between the root of go-between (11) and blood pump outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311723711.7A CN117398595B (en) | 2023-12-15 | 2023-12-15 | Blood pump outlet pipe connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311723711.7A CN117398595B (en) | 2023-12-15 | 2023-12-15 | Blood pump outlet pipe connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117398595A true CN117398595A (en) | 2024-01-16 |
| CN117398595B CN117398595B (en) | 2024-02-23 |
Family
ID=89494816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311723711.7A Active CN117398595B (en) | 2023-12-15 | 2023-12-15 | Blood pump outlet pipe connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117398595B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190038819A1 (en) * | 2015-09-11 | 2019-02-07 | Berlin Heart Gmbh | System for connecting a blood pump to a heart |
| CN110022913A (en) * | 2016-12-01 | 2019-07-16 | 柏林心脏有限公司 | Intubation, intubation system and blood pump system |
| US20200121905A1 (en) * | 2018-10-18 | 2020-04-23 | Abiomed, Inc. | Systems and methods for minimizing leaks during insertion of pumps |
| CN111417417A (en) * | 2017-12-01 | 2020-07-14 | 柏林心脏有限公司 | Cannula, cannula system and blood pump system |
| CN217961000U (en) * | 2022-01-10 | 2022-12-06 | 深圳核心医疗科技有限公司 | Connecting clamp and blood pump |
| CN219231203U (en) * | 2022-07-12 | 2023-06-23 | 深圳核心医疗科技股份有限公司 | Clamp and blood pump |
-
2023
- 2023-12-15 CN CN202311723711.7A patent/CN117398595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190038819A1 (en) * | 2015-09-11 | 2019-02-07 | Berlin Heart Gmbh | System for connecting a blood pump to a heart |
| CN110022913A (en) * | 2016-12-01 | 2019-07-16 | 柏林心脏有限公司 | Intubation, intubation system and blood pump system |
| CN111417417A (en) * | 2017-12-01 | 2020-07-14 | 柏林心脏有限公司 | Cannula, cannula system and blood pump system |
| US20200121905A1 (en) * | 2018-10-18 | 2020-04-23 | Abiomed, Inc. | Systems and methods for minimizing leaks during insertion of pumps |
| CN217961000U (en) * | 2022-01-10 | 2022-12-06 | 深圳核心医疗科技有限公司 | Connecting clamp and blood pump |
| CN219231203U (en) * | 2022-07-12 | 2023-06-23 | 深圳核心医疗科技股份有限公司 | Clamp and blood pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117398595B (en) | 2024-02-23 |
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