CN213048651U - Anti-backflow precise filtering infusion apparatus - Google Patents
Anti-backflow precise filtering infusion apparatus Download PDFInfo
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- CN213048651U CN213048651U CN202020964843.4U CN202020964843U CN213048651U CN 213048651 U CN213048651 U CN 213048651U CN 202020964843 U CN202020964843 U CN 202020964843U CN 213048651 U CN213048651 U CN 213048651U
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- backflow
- infusion
- branch pipe
- infusion tube
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Abstract
The utility model provides a backflow-preventing precise filtering infusion apparatus, include: a transfusion tube; a needle head arranged at one end of the transfusion tube; the backflow prevention component is arranged on the infusion tube and is 30-40 cm away from the needle head; the backflow prevention assembly includes: the branch pipe is arranged on the infusion tube, and the branch pipe and the infusion tube form an included angle of 30-70 degrees; the branch pipe and the infusion tube are arranged in a crossed manner to form a crossed area, and the branch pipe is communicated with the infusion tube in the crossed area; the plugging piece is arranged in the branch pipe, the plugging piece is a cuboid, and the upper part of the plugging piece is positioned at the upper part of the crossing region; the density of the plugging piece is 0.8g/cm3～0.9g/cm3. Anti-return microfiltration transfusion system can effectively prevent the blood backward flow to carry out the microfiltration to the medicine.
Description
Technical Field
The utility model relates to the field of medical appliances, and in particular to anti-backflow precise filtering infusion apparatus.
Background
The infusion is used as the most basic treatment means and is widely applied to clinic, when the infusion is finished, if the needle head is not pulled out in time, blood can be caused to return, the blood of a patient can flow back to the infusion apparatus, and thus potential safety hazards can be brought to the patient. Some devices for preventing liquid from flowing backwards by using a one-way membrane are available in the market at present, but the devices are limited by the quality and the service life of the membrane, the actual using effect is not good, some devices cannot realize the function of preventing liquid from flowing backwards, some devices can block a downstream channel to cause negative effects on normal transfusion, and the feedback in clinical use is also unsatisfactory. Therefore, the problem of blood return prevention of the infusion apparatus is always an urgent problem to be solved in the field of clinical care.
SUMMERY OF THE UTILITY MODEL
In order to solve at least part of the technical problem, the utility model provides an anti-return precise filtration transfusion system, it includes:
a transfusion tube;
a needle head arranged at one end of the infusion tube;
the backflow prevention assembly is arranged on the infusion tube, and the distance between the backflow prevention assembly and the needle head is 30-40 cm; the backflow prevention assembly includes:
the branch pipe is arranged on the infusion tube, and the branch pipe and the infusion tube form an included angle of 30-70 degrees; the branch pipe and the infusion tube are arranged in a crossed mode to form a crossed area, and the branch pipe is communicated with the infusion tube in the crossed area;
the blocking piece is arranged in the branch pipe, the blocking piece is a cuboid, and the upper part of the blocking piece is positioned at the upper part of the intersection region; the density of the plugging piece is 0.8g/cm3～0.9g/cm3。
In some embodiments, in the anti-backflow microfiltration infusion set, the blocking member is polyethylene or polypropylene.
In some embodiments, in the anti-backflow precise filtration infusion apparatus, the branch pipe and the infusion tube form an included angle of 45-60 degrees.
In some embodiments, the distance between the top of the blocking piece and the top of the branched pipe is 1/3-1/4 of the length of the branched pipe.
In some embodiments, in the anti-backflow precise filtering infusion set, the length value of the diagonal line of the bottom surface of the blocking piece is smaller than the diameter value of the branched pipe.
In some embodiments, in the backflow-preventing precise-filtering infusion apparatus, the infusion apparatus further comprises a bottle stopper inserting device arranged at the other end of the infusion tube.
In some embodiments, in the anti-backflow precise filtering infusion apparatus, the infusion tube further comprises a drip chamber disposed between the stopper inserting device and the anti-backflow component.
In some embodiments, the anti-backflow precision filtering infusion set further comprises a precision filter arranged between the drip chamber and the bottle stopper inserter.
In some embodiments, in the anti-backflow microfiltration infusion set, the microfiltration device comprises:
a hollow housing, said housing being cylindrical;
a filter membrane disposed inside the housing;
the filter screen is arranged in the shell and is positioned at the upper part of the filter membrane;
a plurality of needles vertically arranged on the filter screen.
In some embodiments, the backflow-preventing precise-filtering infusion set is provided with a plurality of needle-shaped sub-pieces, and the needle-shaped sub-pieces form an included angle of 30-60 degrees.
The utility model has the advantages as follows:
1. in the use process of the utility model, the medicine flows to the backflow preventer along the infusion tube, when the medicine flows to the cross area, the medicine flows to the lower part of the branch tube and fills the lower part of the branch tube due to the plugging of the plugging piece, and the plugging piece suspends in the branch tube under the buoyancy action of the medicine because the density of the plugging piece is smaller than the density value of the medicine, so that the medicine can flow to the lower part of the infusion tube from the cross area and complete the infusion process; after the transfusion is finished, the plugging piece falls back to the branch pipe under the action of gravity, if the patient has blood backflow, the plugging piece plugs in the crossing area, and the blood cannot flow through the crossing area, so that the purpose of preventing the blood backflow is achieved.
2. Anti-return microfiltration transfusion system, set up precision filter, it utilizes filtration membrane to filter the impurity in the medicine, simultaneously, utilizes the needle-shaped piece and the needle-shaped sub-component of vertical setting to eliminate the bubble in the medicine, realizes the precision filtration to the medicine.
Drawings
Fig. 1 is a schematic structural view of the anti-backflow precise filtering infusion apparatus of the present invention.
Reference numerals:
1 denotes an infusion tube, 2 denotes a needle, 3 denotes a backflow prevention member, 31 denotes a branch tube, 32 denotes a stopper, 4 denotes a stopper inserter, 5 denotes a dropping funnel, 6 denotes a fine filter, 61 denotes a housing, 62 denotes a filter membrane, 63 denotes a filter net, 64 denotes a needle-shaped member, and 65 denotes a needle-shaped sub-member.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, the utility model provides a backflow-preventing precise filtering infusion apparatus, which comprises:
an infusion tube 1;
a needle head 2 arranged at one end of the infusion tube 1;
the backflow prevention component 3 is arranged on the infusion tube 1, and the backflow prevention component 3 is 230 cm-40 cm away from the needle head; the backflow prevention assembly 3 includes:
a branch pipe 31 arranged on the infusion tube 1, wherein the branch pipe 31 and the infusion tube 1 form an included angle of 30-70 degrees; the branch pipe 31 and the infusion tube 1 are arranged in a crossed manner to form a crossed region, and the branch pipe 31 and the infusion tube 1 are communicated in the crossed region;
a blocking member 32 provided in the branch pipe 31, the blocking member 32 being a rectangular parallelepiped, an upper portion of the blocking member being located at an upper portion of the intersection region; the density of the blocking piece 32 is 0.8g/cm3～0.9g/cm3。
The utility model discloses an anti-return precise filtration transfusion system, its in the use, the medicine flows to anti-return device along transfer line 1, when the medicine flows to the cross region, because the shutoff of shutoff piece 32, the medicine flows to the lower part of lateral pipe 31 and fills up the lower part of lateral pipe 31, because the density of shutoff piece 32 is less than the density value of medicine, under the buoyancy of medicine, shutoff piece 32 suspends in lateral pipe 31, the medicine can flow to the transfer line 1 lower part from the cross region and accomplish the infusion process; after the transfusion is finished, the plugging piece 32 falls back into the branch pipe 31 under the action of gravity, if the patient has blood backflow, the plugging piece 32 is plugged in the crossing area, the blood can not flow through the crossing area, and the purpose of preventing the blood backflow is achieved.
In the above embodiment, the plugging member 32 is polyethylene or polypropylene.
In the above scheme, the branch pipe 31 and the infusion tube 1 form an included angle of 45-60 degrees. In certain embodiments, the branch tube 31 is at 45 °, 50 °, 55 °, or 60 ° to the infusion tube 1.
In the scheme, the distance value between the top of the blocking piece 32 and the top of the branch pipe 31 is 1/3-1/4 of the length value of the branch pipe 31.
When the blocking piece 32 is suspended in the drug, the drug can flow to the lower part of the infusion tube 1 through the lower part of the branch tube 31.
In the above solution, the length of the diagonal line of the bottom surface of the blocking piece 32 is smaller than the diameter of the branch pipe 31. The blocking piece 32 does not get stuck in the branch pipe 31, ensuring that the blocking piece 32 can be suspended in the branch pipe 31.
In the scheme, the infusion apparatus further comprises a bottle stopper inserting device 4 arranged at the other end of the infusion tube 1.
In the above scheme, the infusion tube 1 further comprises a dropping funnel 5 arranged between the bottle stopper inserting device 4 and the backflow preventing component 3.
In the above scheme, the infusion apparatus further comprises a precision filter 6 arranged between the dropping funnel 5 and the bottle stopper inserting device 4.
In the above solution, the precision filter 6 includes:
a hollow housing 61, said housing 61 being cylindrical;
a filter membrane 62 disposed inside the housing 61;
a filter screen 63 disposed inside the housing 61, the filter screen 63 being located at an upper portion of the filter membrane 62;
a plurality of needles 64 vertically disposed on the filter net 63.
In the above scheme, a plurality of needle-shaped sub-elements 65 are arranged on the needle-shaped element 64, and an included angle of 30-60 degrees is formed between the needle-shaped sub-elements 65 and the needle-shaped element 64.
The precise filter 6 is arranged, impurities in the medicine are filtered by the filter membrane 62, and meanwhile, air bubbles in the medicine are eliminated by the vertically arranged needle-shaped piece 64 and the vertically arranged needle-shaped sub-piece 65, so that precise filtering of the medicine is realized.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a backflow-preventing precise filtering infusion set which characterized in that includes:
a transfusion tube;
a needle head arranged at one end of the infusion tube;
the backflow prevention assembly is arranged on the infusion tube, and the distance between the backflow prevention assembly and the needle head is 30-40 cm; the backflow prevention assembly includes:
the branch pipe is arranged on the infusion tube, and the branch pipe and the infusion tube form an included angle of 30-70 degrees; the branch pipe and the infusion tube are arranged in a crossed mode to form a crossed area, and the branch pipe is communicated with the infusion tube in the crossed area;
the blocking piece is arranged in the branch pipe, the blocking piece is a cuboid, and the upper part of the blocking piece is positioned at the upper part of the intersection region; the density of the plugging piece is 0.8g/cm3～0.9g/cm3。
2. The anti-reflux microfiltration infusion set according to claim 1 wherein the block piece is polyethylene or polypropylene.
3. The backflow-preventing precise-filtering infusion set according to claim 2, wherein the branch pipe and the infusion tube form an included angle of 45-60 degrees.
4. The backflow-preventing precise-filtration infusion set according to claim 3, wherein the distance between the top of the blocking piece and the top of the branched pipe is 1/3-1/4 of the length of the branched pipe.
5. The anti-reflux microfiltration infusion set according to claim 4 wherein the length of the diagonal of the bottom surface of the block piece is smaller than the diameter of the branch tube.
6. The anti-backflow precise filtration infusion set according to claim 5, further comprising a bottle stopper inserter disposed at the other end of the infusion tube.
7. The anti-reflux precise filtration infusion set according to claim 6, further comprising a drip chamber disposed between the stopper penetrating device and the anti-reflux assembly.
8. The anti-reflux microfiltration infusion set according to claim 7 further comprising a microfiltration device disposed between the drip chamber and the stopper insert.
9. The anti-reflux microfiltration infusion set according to claim 8 wherein the microfiltration machine comprises:
a hollow housing, said housing being cylindrical;
a filter membrane disposed inside the housing;
the filter screen is arranged in the shell and is positioned at the upper part of the filter membrane;
a plurality of needles vertically arranged on the filter screen.
10. The anti-backflow precise filtration infusion set according to claim 9, wherein a plurality of needle-shaped sub-pieces are arranged on the needle-shaped piece, and an included angle of 30-60 degrees is formed between the needle-shaped sub-pieces and the needle-shaped piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020964843.4U CN213048651U (en) | 2020-06-01 | 2020-06-01 | Anti-backflow precise filtering infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020964843.4U CN213048651U (en) | 2020-06-01 | 2020-06-01 | Anti-backflow precise filtering infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213048651U true CN213048651U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020964843.4U Active CN213048651U (en) | 2020-06-01 | 2020-06-01 | Anti-backflow precise filtering infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213048651U (en) |
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2020
- 2020-06-01 CN CN202020964843.4U patent/CN213048651U/en active Active
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