CN213667536U - Integrated minimally invasive catheter type heart auxiliary device - Google Patents
Integrated minimally invasive catheter type heart auxiliary device Download PDFInfo
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- CN213667536U CN213667536U CN202022033733.9U CN202022033733U CN213667536U CN 213667536 U CN213667536 U CN 213667536U CN 202022033733 U CN202022033733 U CN 202022033733U CN 213667536 U CN213667536 U CN 213667536U
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Abstract
The utility model belongs to the technical field of medical equipment, in particular to an integrated minimally invasive catheter type heart auxiliary device, which 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 arranged at the polyurethane films corresponding to the blood inflow port and the blood outflow port; the utility model discloses a surface coating polyurethane membrane at heart auxiliary device extends to the extension pipe from the pigtail, draws empty formation blood import and blood export in the polyurethane membrane department that corresponds blood inflow mouth and blood outflow mouth afterwards, so, the risk that the elimination part that can be complete drops, very big increase the security that this heart auxiliary device used.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to integration wicresoft's pipe formula heart auxiliary device.
Background
Mechanical heart assist devices have been touted in recent years, particularly short-term heart assist devices (for rescue, heart transition transplantation), of which impela is one currently used for left ventricular assist; the Impella is composed of a pigtail, a blood inflow port, a blood inflow channel, a blood outflow port, an axial flow impeller, a driving motor and the like, and has the action principle that the Impella reversely enters a left ventricle through a catheter, blood is sucked through a cage-shaped blood inflow port at the front end of the catheter, and the blood is directly pumped to the whole body from the outflow port positioned in an ascending aorta through a miniature axial flow pump.
The existing Impella comprises a blood flow conduit, an axial flow impeller and a driving motor; wherein, the blood circulating catheter comprises three parts, namely a pigtail at the most front end, a blood inflow port slightly behind, a longer blood flow channel and a final blood outflow port in sequence; in the existing product manufacturing, the pigtail, the blood inflow port, the blood flow channel and the blood outflow port are all in split design, the number of parts is large, the device has high requirements on the joint degree of all parts, especially the current blood inflow port is made of metal, so that the joint degree is deviated, steps or burrs occur, and serious blood vessel damage can be caused in the process of implanting the blood vessel; the material of current pigtail is medical polyurethane, and the material of blood inflow mouth and blood flow export is the metal, and the material of blood runner is medical polyurethane, and it has the steel wire to embed, adopts glue to bond between the different materials of each part, and this has provided higher requirement to the nature of glue, for example the biocompatibility of glue must reach standard, and in addition, the durability of glue has decided whether above-mentioned each spare part can take place to drop.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide an integration wicresoft's pipe formula heart auxiliary device, avoid droing of each spare part of constituteing heart auxiliary device.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
an integrated minimally invasive catheter type heart auxiliary device comprises a pigtail, a blood inflow port, a blood flow channel, a blood outflow port, a motor and an extension tube which are connected and fixed in sequence,
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 arranged at the positions of the polyurethane films corresponding to the blood inflow port and the blood outflow port.
Preferably, the thickness of the polyurethane film is 0.1 mm.
Compared with the prior art, the utility model provides an among the technical scheme, through the surface coating polyurethane membrane at heart auxiliary device, extend to the extension pipe from the pigtail, dig empty formation blood import and blood export in the polyurethane membrane department that corresponds blood inflow mouth and blood outflow mouth afterwards, so, the risk that the elimination part that can be complete drops, very big increase the security that this heart auxiliary device used.
Other features and advantages of the present invention will be described in detail in the following detailed description.
Drawings
Fig. 1 is a schematic structural view of an integrated minimally invasive catheter type heart assist device according to the present invention;
the reference numbers in the figures illustrate: 1-pigtail tube, 2-blood inlet, 3-blood channel, 4-blood outlet, 5-motor, 6-extension tube.
Detailed Description
In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further clarified by combining the specific drawings.
It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, in the prior art, as a complete minimally invasive catheter type heart assist device, the minimally invasive catheter type heart assist device includes a pigtail 1, a blood inflow port 2, a blood flow channel 3, a blood outflow port 4, a motor 5 and an extension tube 6, which are connected and fixed in sequence, and the connection modes of the above components include glue bonding, electric welding and interference fit. Specifically, the method comprises the following steps: the connection part of the extension tube 6 and the motor 5 adopts interference fit, and the motor 5 and the blood outflow port 4 are welded for a plurality of times by laser welding and then are bonded by glue; the blood outlet 4 is bonded with the blood channel 3 by glue, the blood channel 3 is bonded with the blood inlet 2 by glue, and the blood inlet 2 is in interference fit with the pigtail 1; in the connection mode, the laser welding mode between the motor 5 and the blood outflow port 4 has a certain risk of falling off due to the small connection surface; the blood flow channel 3 is bonded with the blood inflow port 2 and the blood outflow port 4 by glue, and the bonding performance and biocompatibility of the glue need to be considered.
Therefore, the utility model provides an integrated minimally invasive catheter type heart auxiliary device, which comprises a pigtail 1, a blood inflow port 2, a blood flow channel 3, a blood outflow port 4, a motor 5 and an extension tube 6 which are connected and fixed in sequence,
the outer sides of the pigtail 1, the blood inlet 2, the blood channel 3, the blood outlet 4, the motor 5 and the extension tube 6 are coated with polyurethane films, and a blood inlet and a blood outlet are arranged at the polyurethane films corresponding to the blood inlet 2 and the blood outlet 4.
Further, according to the utility model discloses, the thickness of polyurethane membrane is 0.1 mm.
The utility model provides an among the technical scheme, polyurethane membrane pliability strong, through with its cladding at whole device surface, extend to extension pipe 6 from pigtail 1, take out the sky at the polyurethane membrane department that corresponds blood inflow mouth 2 and blood outflow mouth 4 afterwards and form blood import and blood export, so, the risk that the eliminating part that can be complete drops, very big increase the security that this heart auxiliary device used.
The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An integrated minimally invasive catheter type heart auxiliary device is characterized by comprising 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,
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 arranged at the positions of the polyurethane films corresponding to the blood inflow port and the blood outflow port.
2. The integrated minimally invasive ducted heart assist device according to claim 1, wherein the thickness of the polyurethane film is 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033733.9U CN213667536U (en) | 2020-09-15 | 2020-09-15 | Integrated minimally invasive catheter type heart auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033733.9U CN213667536U (en) | 2020-09-15 | 2020-09-15 | Integrated minimally invasive catheter type heart auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213667536U true CN213667536U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022033733.9U Active CN213667536U (en) | 2020-09-15 | 2020-09-15 | Integrated minimally invasive catheter type heart auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213667536U (en) |
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2020
- 2020-09-15 CN CN202022033733.9U patent/CN213667536U/en active Active
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