CN218485008U - Blood pump for percutaneous insertion into blood vessel of patient - Google Patents
Blood pump for percutaneous insertion into blood vessel of patient Download PDFInfo
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- CN218485008U CN218485008U CN202122783525.5U CN202122783525U CN218485008U CN 218485008 U CN218485008 U CN 218485008U CN 202122783525 U CN202122783525 U CN 202122783525U CN 218485008 U CN218485008 U CN 218485008U
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- blood
- flexible sleeve
- blood vessel
- catheter
- tube
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- 239000008280 blood Substances 0.000 title claims abstract description 43
- 210000004369 blood Anatomy 0.000 title claims abstract description 43
- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 19
- 238000003780 insertion Methods 0.000 title claims description 12
- 230000037431 insertion Effects 0.000 title claims description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000010926 purge Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 239000012781 shape memory material Substances 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical group [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000017531 blood circulation Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 229920006264 polyurethane film Polymers 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 210000001765 aortic valve Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000005240 left ventricle Anatomy 0.000 description 2
- 206010007556 Cardiac failure acute Diseases 0.000 description 1
- 206010018910 Haemolysis Diseases 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010007625 cardiogenic shock Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Images
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
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/13—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- 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
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/237—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
-
- 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
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/408—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable
- A61M60/411—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor
- A61M60/416—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor transmitted directly by the motor rotor drive shaft
-
- 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
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/827—Sealings between moving parts
- A61M60/829—Sealings between moving parts having a purge fluid supply
-
- 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
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/871—Energy supply devices; Converters therefor
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Mechanical Engineering (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The utility model relates to the technical field of medical equipment, a blood pump for inserting patient's blood vessel percutaneously is disclosed, including the pipe with attach to the pumping installations of pipe, the pipe extends along longitudinal axis and has the lumen, is provided with electric wire and scavenge pipe that extend to the distal end from the near-end in the lumen, and the scavenge pipe is constructed to receive through the pressurized fluid, be provided with flexible sleeve pipe in the lumen, electric wire and/or scavenge pipe are set up in flexible sleeve pipe. The flexible sleeve is used for accommodating the electric wire, the optical fiber and the cleaning tube, and then the flexible sleeve is placed in the catheter, so that the overall flexibility of the catheter is improved, the radial deformation resistance is facilitated, and the structural support is provided for the smooth running of the catheter in a blood vessel.
Description
The technical field is as follows:
the utility model relates to the technical field of medical equipment, concretely relates to a blood pump for inserting patient's blood vessel percutaneously.
Background art:
blood pumps, also known as mechanical blood circulation support devices or ventricular assist devices, may be introduced percutaneously into the heart and may be configured to assist or replace natural heart pump function by circulatory pumping or continuous pumping of blood, providing hemodynamic support for cardiogenic shock and acute heart failure.
The prior art adopts the technical scheme that the Chinese patent publication number is CN 213667536U: the blood circulation device comprises a pigtail, a blood inflow port, a blood flow channel, a blood outflow port, a motor and an extension tube which are sequentially connected and fixed, wherein the outer sides of the pigtail, the blood inflow port, the blood flow channel, the blood outflow port, the motor and the extension tube are coated with polyurethane films, and a blood inlet and a blood outlet are formed in the positions of the polyurethane films corresponding to the blood inflow port and the blood outflow port. By coating the polyurethane film on the surface of the heart assist device, extending from the pigtail to the extension tube and then hollowing out the polyurethane film corresponding to the blood inflow port and the blood outflow port to form the blood inlet and the blood outlet, the risk of falling off of parts can be completely eliminated, and the use safety of the heart assist device is greatly improved.
The motor is located inside the motor casing, and a gap is formed between the rotating shaft of the motor and the motor casing. Blood can enter the motor shell through the gap to bring about thrombus, hemolysis and other adverse effects, a cleaning pipeline is arranged to extend from the outside to the guide pipe and enter the motor shell, and the blood can be pushed out at the gap by the flowing of cleaning fluid (such as heparin) in the motor shell so as to prevent the blood from entering the shell. However, due to the tortuous path of the blood vessel, radial deformations, such as kinks, of the catheter may occur during the pushing of the blood pump into the heart, resulting in an obstructed flow of cleaning fluid in the cleaning tube, which adversely affects the function of the blood pump.
The utility model has the following contents:
to the problem among the prior art, the utility model aims to provide a blood pump for inserting patient's blood vessel percutaneously.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize: a blood pump for percutaneous insertion into a blood vessel of a patient, comprising a catheter and a pumping device attached to the catheter, the catheter extending along a longitudinal axis and having a lumen in which an electrical wire extending from a proximal end to a distal end and a purge tube are disposed, the purge tube being configured to receive a pressurized fluid, a flexible sleeve being disposed in the lumen, the electrical wire and/or purge tube being disposed in the flexible sleeve.
Preferably, the flexible sleeve has a helical structure or a porous three-dimensional structure.
Preferably, the flexible sleeve is a spiral coil or a rubber tube or a braided tube or a hollowed tube.
Preferably, the flexible sleeve comprises a shape memory material, preferably a shape memory alloy, more preferably nitinol.
Preferably, the braided tube is a knitted fabric, a knotted fabric, a woven fabric or a nonwoven.
Preferably, the flexible sleeve extends intermittently or continuously within the lumen.
Preferably, the flexible sleeve has an outer dimension adapted to pass through a catheter and an inner dimension to accommodate an electrical cord and/or a cleaning tube.
The beneficial effects of the utility model are that:
the utility model discloses an use the flexible sleeve pipe to hold electric wire and scavenge pipe, arrange the flexible sleeve pipe in the pipe again, just so improved the whole flex performance of pipe, be convenient for resist radial deformation, provide structural support for the smooth and easy operation of pipe in the blood vessel.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
FIG. 1 is a block diagram of a blood pump for percutaneous insertion into a patient's blood vessel in accordance with the present invention;
fig. 2 is a schematic view of the internal structure of the motor casing according to the present invention;
fig. 3 is a partial enlarged view of a portion a in fig. 2 according to the present invention;
fig. 4 is a schematic view of the longitudinal section structure of the catheter in the present invention;
fig. 5 is a partial enlarged view of the portion B in fig. 4 according to the present invention;
fig. 6 is a schematic cross-sectional structure diagram of the flexible sleeve according to the present invention;
wherein: 101. a conduit; 102. a motor housing; 103. a blood flow outlet; 104. a blood flow channel; 105. a blood flow inlet; 106. pigtail tube; 201. a flexible sleeve; 202. cleaning the tube; 203. an electric wire; 301. a motor; 302. an axial flow impeller.
The specific implementation mode is as follows:
in order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Example 1:
as shown in fig. 1, in the prior art, as a complete blood pump suitable for left heart assist, the blood pump includes a pigtail 106, a blood inlet 105, a blood flow channel 104, a blood outlet 103, a motor housing 102 and a conduit 101 which are connected and fixed in sequence, a motor 301 is installed inside the motor housing 102, a rotating shaft of the motor 301 penetrates through the housing of the motor 301 and is fixedly connected with an axial flow impeller 302 rotatably connected inside the blood flow channel 104, and an electric wire 204, an optical fiber 203 and a cleaning tube 202 are arranged inside the conduit 101;
in use, the blood flow passage 104 may extend through the aortic valve such that the blood inflow port 105 and the pigtail 106 are positioned in the left ventricle across the aortic valve, the motor 301 rotates the axial impeller 302, and under this driving action, blood in the left ventricle is pumped from the blood inflow port 105 into the blood flow to the inside and flows out through the blood flow outlet 103 into the aorta; during the process of pushing the blood pump into the heart, the catheter 101 may be radially deformed, such as bent, so that the flow of the cleaning fluid in the cleaning tube 202 is blocked, thereby adversely affecting the function of the blood pump.
Example 2:
as shown in fig. 1-6; a blood pump for percutaneous insertion into a blood vessel of a patient, comprising a catheter 101 and a pumping device attached to the catheter 101, the catheter 101 extending along a longitudinal axis and having a lumen in which a wire 204 and a purge tube 202 are arranged, extending from a proximal end to a distal end, the purge tube 202 being configured to receive a pressurized fluid, the lumen having a flexible cannula 201 arranged therein, the wire 204 and/or the purge tube 202 being arranged in the flexible cannula 201.
The flexible sleeve 201 has a spiral structure or a porous three-dimensional structure.
The flexible sleeve 201 is a spiral coil or a rubber tube or a braided tube or a hollow tube.
The flexible sleeve 201 comprises a shape memory material, preferably a shape memory alloy, more preferably nitinol.
The braided tube is a knitted fabric, a knotted fabric, a woven fabric, or a nonwoven.
The flexible sleeve 201 extends intermittently or continuously within the lumen.
The flexible sleeve 201 has an outer dimension suitable for passing through a catheter and an inner dimension to accommodate the electrical wire 204 and/or the cleaning tube 202.
The flexible sleeve 201 is used for accommodating the electric wire 203 and the cleaning tube 202, and the flexible sleeve 201 is placed in the catheter 101, so that the overall flexibility of the catheter 101 is improved, radial deformation is resisted conveniently, and structural support is provided for smooth running of the catheter 101 in a blood vessel.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A blood pump for percutaneous insertion into a blood vessel of a patient, comprising a catheter and a pumping device attached to the catheter, the catheter extending along a longitudinal axis and having a lumen with an electrical wire extending from a proximal end to a distal end and a purge tube disposed therein, the purge tube configured to receive a pressurized fluid, characterized in that: a flexible sleeve is arranged in the lumen, and an electric wire and/or a cleaning tube are arranged in the flexible sleeve.
2. The blood pump for percutaneous insertion into a blood vessel of a patient according to claim 1, wherein: the flexible sleeve has a helical structure or a porous three-dimensional structure.
3. A blood pump for percutaneous insertion into a patient's blood vessel according to claim 1 or 2, wherein: the flexible sleeve is a spiral coil or a rubber tube or a braided tube or a hollow tube.
4. A blood pump for percutaneous insertion into a blood vessel of a patient according to claim 3, wherein: the flexible sleeve comprises a shape memory material, the shape memory material is a shape memory alloy, and the shape memory alloy is nitinol.
5. A blood pump for percutaneous insertion into a blood vessel of a patient according to claim 3, wherein: the braided tube is a knitted fabric, a knotted fabric, a woven fabric, or a nonwoven.
6. A blood pump for percutaneous insertion into a blood vessel of a patient according to claim 3, wherein: the flexible sleeves extend intermittently or continuously within the lumen.
7. A blood pump for percutaneous insertion into a blood vessel of a patient according to claim 3, wherein: the flexible sleeve has an outer dimension adapted to pass through a catheter and an inner dimension to accommodate a wire and/or a cleaning tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122783525.5U CN218485008U (en) | 2021-11-15 | 2021-11-15 | Blood pump for percutaneous insertion into blood vessel of patient |
| NL2030451A NL2030451B1 (en) | 2021-11-15 | 2022-01-06 | Blood pump for percutaneous insertion into patient blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122783525.5U CN218485008U (en) | 2021-11-15 | 2021-11-15 | Blood pump for percutaneous insertion into blood vessel of patient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218485008U true CN218485008U (en) | 2023-02-17 |
Family
ID=81607272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122783525.5U Active CN218485008U (en) | 2021-11-15 | 2021-11-15 | Blood pump for percutaneous insertion into blood vessel of patient |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218485008U (en) |
| NL (1) | NL2030451B1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344512B2 (en) * | 2002-03-15 | 2008-03-18 | Sun Medical Technology Research Corporation | Protector and blood pump system |
| DE102012207056B4 (en) * | 2012-04-27 | 2021-11-11 | Abiomed Europe Gmbh | CATHETHER SYSTEM AND INTRAVASAL BLOOD PUMP WITH THIS CATHETER SYSTEM |
| US11077294B2 (en) * | 2013-03-13 | 2021-08-03 | Tc1 Llc | Sheath assembly for catheter pump |
| EP3398624A1 (en) * | 2017-05-04 | 2018-11-07 | Abiomed Europe GmbH | Blood pump with reinforced catheter |
| EP3823687B1 (en) * | 2018-07-19 | 2025-08-27 | Abiomed, Inc. | Systems and methods for reducing leaks from a catheter |
| EP3666303A1 (en) * | 2018-12-11 | 2020-06-17 | Abiomed Europe GmbH | Catheter for intravascular blood pump |
| EP3782665B1 (en) * | 2019-01-24 | 2021-08-25 | Magenta Medical Ltd. | Ventricular assist device |
-
2021
- 2021-11-15 CN CN202122783525.5U patent/CN218485008U/en active Active
-
2022
- 2022-01-06 NL NL2030451A patent/NL2030451B1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| NL2030451B1 (en) | 2024-11-25 |
| NL2030451A (en) | 2022-05-16 |
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