CN214629462U - Novel accurate perfusion device for experimental rat and mouse hearts - Google Patents
Novel accurate perfusion device for experimental rat and mouse hearts Download PDFInfo
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- CN214629462U CN214629462U CN202120472408.4U CN202120472408U CN214629462U CN 214629462 U CN214629462 U CN 214629462U CN 202120472408 U CN202120472408 U CN 202120472408U CN 214629462 U CN214629462 U CN 214629462U
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Abstract
The utility model relates to a novel experiment is big, accurate perfusion device of mouse heart, keep somewhere the needle including the vein, the vein is kept somewhere the inside instruction light source that is provided with of pjncture needle point of needle, and the vein is kept somewhere the catheter of keeping somewhere in the one end of keeping away from pjncture needle point and is provided with the inflation piece, be used for the card to establish inside the puncture mouth during inflation piece. The utility model has simple and reasonable structure design, and can effectively judge the needle inserting position by arranging the indicating light source at the needle point of the puncture needle; and the end of the indwelling catheter far away from the needle point is provided with the air bag which is clamped inside the puncture port, so that the indwelling catheter can be effectively prevented from slipping during perfusion, the heart perfusion success rate of the rat and the mouse is effectively improved, and the experimental requirements are better met.
Description
The technical field is as follows:
the utility model relates to a novel experiment is big, accurate perfusion of mouse heart device.
Background art:
in scientific research experiments, heart perfusion technology of rats and mice is widely applied, is particularly important in relevant researches on central nervous system diseases and cardiovascular diseases, and the fixation of animal tissue cells through heart perfusion is one of the technical keys of morphological researches.
The conventional fixation method for fixing rat and mouse tissues by heart perfusion at present has a plurality of defects in practical operation, such as: due to the imperfection of the perfusion apparatus and the round and blunt perfusion needle, the puncture needle needs to be cut off the apex of the heart and then penetrated, the wound of the puncture point is larger, meanwhile, the puncture needle is difficult to be accurately inserted into the needed artery, and the technical difficulty is higher for a novice; meanwhile, the perfusion needle head is not easy to fix and slip, so that the perfusion effect is not good enough, and the existing hemostatic forceps are used for fixing the needle head and the heart, so that the injury to the heart tissue is great, and the subsequent experiment is influenced.
The utility model has the following contents:
the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a novel experiment is big, accurate perfusion device of mouse heart is provided, and convenient to use can effectively improve and fill the success rate, from better and satisfy the experiment demand.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a novel experiment is big, accurate perfusion device of mouse heart, includes that the vein is kept somewhere the needle, the vein is kept somewhere puncture needle point inside and is provided with the pilot light source, and the vein is kept somewhere the catheter and is provided with the inflation piece in the one end of keeping away from puncture needle point of needle, be used for the card to establish inside the puncture mouth during inflation piece.
Further, the indicating light source is a cold light source.
Furthermore, the indication light source adopts an ultra-bright LED lamp.
Furthermore, the puncture needle further comprises a power supply assembly used for providing electric energy for the indicating light source, the power supply assembly is connected with the indicating light source through a lead, and the lead penetrates through the needle holding handle of the venous indwelling needle and extends into the puncture needle.
Furthermore, the expansion part comprises an annular air bag fixedly sleeved on the outer side of the indwelling catheter of the venous indwelling needle, an inflation connector is arranged on the air bag, and the inflation connector is connected with an inflation tube.
Furthermore, the inflation joint is positioned on one end face of the air bag far away from the needle point of the puncture needle.
Furthermore, one end of the inflation tube, which is far away from the air bag, is provided with a control valve.
Compared with the prior art, the utility model discloses following effect has: the utility model has simple and reasonable structure design, and can effectively judge the needle inserting position by arranging the indicating light source at the needle point of the puncture needle; and the end of the indwelling catheter far away from the needle point is provided with the air bag which is clamped inside the puncture port, so that the indwelling catheter can be effectively prevented from slipping during perfusion, the heart perfusion success rate of the rat and the mouse is effectively improved, and the experimental requirements are better met.
Description of the drawings:
fig. 1 is a schematic front view of the embodiment of the present invention;
FIG. 2 is a schematic view of a partial configuration of an embodiment of the present invention;
figure 3 is a schematic view of the configuration of the bladder of figure 2 when inflated.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the utility model relates to a novel experimental large mouse heart precision perfusion device, which comprises a vein indwelling needle 1, wherein the vein indwelling needle 1 comprises a puncture needle 10, an indwelling catheter 11, a needle holding handle 12, a transparent three-way joint 13, a connecting hose 14 and an infusion joint 15, the infusion joint 15 is connected with one port of the transparent three-way joint 13 through the connecting hose 14, a needle seat 121 of the needle holding handle 12 and the indwelling catheter 11 are respectively connected with the other two ports of the transparent three-way joint 13, the puncture needle 10 is slidably arranged in the indwelling catheter 11, and one end of the puncture needle 10 is fixedly connected with the needle seat of the needle holding handle 12; an indicating light source 2 is arranged inside the needle point of a puncture needle 10 of the vein indwelling needle 1, an expansion piece 3 is arranged at one end, far away from the needle point of the puncture needle 10, of an indwelling catheter 11 of the vein indwelling needle 1, and the expansion piece 3 is clamped inside a puncture opening 4 when expanding. The needle inserting position can be effectively judged by arranging the indicating light source at the needle point of the puncture needle; and the end of the indwelling catheter far away from the needle point is provided with the air bag clamped in the puncture, so that the indwelling catheter can be effectively prevented from slipping during perfusion.
In this embodiment, the indication light source 2 is a cold light source, which can effectively prevent the heat of the lamp bulb from burning the heart and the blood vessel intima. Preferably, the indicating light source can adopt a miniature ultra-bright LED lamp.
In the embodiment, the puncture needle further comprises a power supply assembly 5 for supplying electric energy to the indicating light source 2, wherein the power supply assembly 5 is connected with the indicating light source 2 through a lead 6, and the lead 6 penetrates through a needle base of the needle holding handle 12 and extends into the puncture needle 10. Preferably, the power supply assembly comprises a power switch box, and a battery for supplying electric energy and a switch for controlling the on-off of the indicating light source are arranged in the power switch box.
In this embodiment, the expansion member 3 includes an annular balloon 31 fixedly sleeved outside the indwelling catheter 11 of the venous indwelling needle 1, the balloon 31 is provided with an inflation connector 32, and the inflation connector 32 is connected with an inflation tube 33. It should be noted that, in use, 0.5-1ml of air or physiological saline can be injected into the balloon through the inflation tube.
In this embodiment, in order to avoid the inflation connector contacting with the puncture opening, the inflation connector 32 is located on an end face of the balloon 31 away from the needle point of the puncture needle 10.
In this embodiment, a control valve 34 is disposed at an end of the inflation tube 33 away from the airbag 31, so as to close the inflation tube after the airbag is inflated.
In this embodiment, the needle tip of the puncture needle 10 is sharp, and the indwelling catheter is a hose; a liquid stopping clip 16 is arranged at one end of the connecting hose close to the transfusion joint.
In this embodiment, it should be noted that the venous indwelling needle is a prior art, and a specific use method thereof is not repeated here.
In the embodiment, when the rapid puncture device is used, the puncture needle 10 of the venous indwelling needle 1 rapidly punctures the apex of the heart, and meanwhile, the power supply assembly 5 is turned on to communicate with the indicating light source 2 at the apex of the puncture needle 10; after the puncture needle 10 is inserted into the heart, the needle head is sent into a required blood vessel according to the indicating light source 2, the puncture needle 10 is withdrawn through the needle holding handle 12, and the indwelling catheter 11 is further sent into the blood vessel; then 0.5-1ml of air or physiological saline is injected into the air bag 34 through the inflation tube 33, and the air bag 34 is clamped inside the puncture after being expanded to fix the indwelling catheter 11; finally, the infusion is performed through the infusion joint 15, the connecting hose 14 and the indwelling catheter 11 of the venous indwelling needle 1, and after the infusion is finished, the air or the normal saline in the air sac 31 is pumped out through the inflation tube, and then the indwelling catheter 11 can be withdrawn.
The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (7)
1. The utility model provides a novel big, accurate perfusion device of mouse heart of experiment, includes that the vein is kept somewhere the needle, its characterized in that: an indicating light source is arranged inside the puncture needle tip of the venous indwelling needle, an expansion piece is arranged at one end, far away from the puncture needle tip, of the indwelling catheter of the venous indwelling needle, and the expansion piece is used for being clamped inside the puncture opening when expanding.
2. The novel precision perfusion device for the heart of experimental rat and mouse as claimed in claim 1, wherein: the indicating light source is a cold light source.
3. The novel precision perfusion device for the heart of experimental rat and mouse as claimed in claim 2, wherein: the indicating light source adopts an ultra-bright LED lamp.
4. The novel precision perfusion device for the heart of experimental rat and mouse as claimed in claim 1, wherein: the venous indwelling needle further comprises a power supply assembly used for providing electric energy for the indicating light source, the power supply assembly is connected with the indicating light source through a lead, and the lead penetrates through the needle holding handle of the venous indwelling needle and extends into the puncture needle.
5. The novel precision perfusion device for the heart of experimental rat and mouse as claimed in claim 1, wherein: the expansion part comprises an annular air bag fixedly sleeved on the outer side of the indwelling catheter of the venous indwelling needle, an inflation connector is arranged on the air bag, and the inflation connector is connected with an inflation tube.
6. The novel precision perfusion device for the heart of experimental rat and mouse as claimed in claim 5, wherein: the inflation joint is positioned on one end face of the air bag far away from the needle point of the puncture needle.
7. The novel precision perfusion device for the heart of experimental rat and mouse as claimed in claim 5, wherein: and one end of the inflation tube, which is far away from the air bag, is provided with a control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472408.4U CN214629462U (en) | 2021-03-05 | 2021-03-05 | Novel accurate perfusion device for experimental rat and mouse hearts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472408.4U CN214629462U (en) | 2021-03-05 | 2021-03-05 | Novel accurate perfusion device for experimental rat and mouse hearts |
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| Publication Number | Publication Date |
|---|---|
| CN214629462U true CN214629462U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120472408.4U Active CN214629462U (en) | 2021-03-05 | 2021-03-05 | Novel accurate perfusion device for experimental rat and mouse hearts |
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| Country | Link |
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| CN (1) | CN214629462U (en) |
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2021
- 2021-03-05 CN CN202120472408.4U patent/CN214629462U/en active Active
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