CN103920205B - A kind of transfusion device - Google Patents
A kind of transfusion device Download PDFInfo
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- CN103920205B CN103920205B CN201410169620.8A CN201410169620A CN103920205B CN 103920205 B CN103920205 B CN 103920205B CN 201410169620 A CN201410169620 A CN 201410169620A CN 103920205 B CN103920205 B CN 103920205B
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- cylindrical shell
- floating drum
- transfusion device
- air
- pipe
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of transfusion device, comprise conduit, and be successively set on described supravasal needle for inserting bottle, air inlet pipe, flow regulator, drop cylinder, liquid medicine filter and puncture needle, also comprise the part flow arrangement that is arranged on catheter interior between described drop cylinder and liquid medicine filter, and fill in the air filter of the mouth of pipe in described air inlet pipe, wherein: the end face of described part flow arrangement is in protruding sphere; Described air filter comprises bolt head and columniform key; Described drop cylinder comprises cylindrical shell, is arranged on the feed tube at cylindrical shell two ends and drain pipe, floating drum and floating drum seat.The present invention can filter all kinds of impurity one step ahead, thus can not block liquid medicine filter, and adds the quantity of air contact surfaces and air inlet during air filtration, keeps clear air and can not block.Meanwhile, floating drum can not overturn, situation about misplacing, can after transfusion completes effective separation gas.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of transfusion device.
Background technology
Transfusion is one of important treatment means of clinical medicine, and existing transfusion device generally comprises needle for inserting bottle, air intake (air inlet pipe), drips cylinder, conduit etc.Should be noted that many aspects during design: the first, during transfusion, in order to prevent the antibacterial in air from entering in the liquid of transfusion, the mouth of pipe that air enters pipe will fill in air filter.Air filter needs the harmful substance in effective filtered air, simultaneously can not too little because of the air inlet gathered, block very little.The second, some medicinal liquid needs to filter, and the medicinal liquid that need filter is generally by being with the transfusion device of liquid medicine filter to infuse, if used for a long time, all kinds of impurity (the rubber slag be stained with when such as piercing through medicinal liquid bottle) may blocking filter.3rd, can not entrained gas during transfusion, if gas enters human body, can injury be produced.Therefore, for preventing gas from entering human body after transfusion terminates, people devise floating drum for blocking drain pipe.But, the floating drum of at present design due to fault of construction, because medicinal liquid floats, fall after having infused easily overturn, the situation such as dislocation, effectively cannot block drain pipe, not have the effect of effectively isolated gas.
Therefore, the transfusion device for above-mentioned three aspect simplicity of design practicalities is the direction that those skilled in the art make great efforts.
Summary of the invention
The object of the present invention is to provide a kind of transfusion device, all kinds of impurity can be filtered one step ahead, thus can not liquid medicine filter be blocked, and during air filtration, add the quantity of air contact surfaces and air inlet, keep clear air and can not block.Meanwhile, floating drum can not overturn, situation about misplacing, can after transfusion completes effective separation gas.
The technical scheme realizing above-mentioned purpose is:
A kind of transfusion device, comprise conduit, and be successively set on described supravasal needle for inserting bottle, air inlet pipe, flow regulator, drop cylinder, liquid medicine filter and puncture needle, also comprise the part flow arrangement that is arranged on catheter interior between described drop cylinder and liquid medicine filter, and fill in the air filter of the mouth of pipe in described air inlet pipe, wherein:
The end face of described part flow arrangement is in protruding sphere, and the sidewall of described part flow arrangement is close to the inwall of described conduit, and described part flow arrangement is evenly arranged some through holes run through up and down;
Described air filter comprises bolt head and columniform key,
Described key divides and is integrated adjacent top section, middle part and bottom stage; Top section projection is in hemisphere shape; Top section and middle part hollow and communicate, fill active carbon; Bottom stage fills in the mouth of pipe of described air inlet pipe, and bottom stage is evenly provided with some vertically through ventholes;
Described bolt head is hemispherical umbrella crown, and the hemisphere face that described top section detained by cover is fixedly installed, and described bolt head is evenly provided with some through air inlets along its hemisphere face;
Described drop cylinder comprises cylindrical shell, is arranged on the feed tube at cylindrical shell two ends and drain pipe, floating drum and floating drum seat,
Described floating drum seat comprises from described cylinder inboard wall certain altitude h and extends to the first ramp member of cylindrical shell bottom surface around cylinder inboard wall obliquely, and extends to the second ramp member of cylindrical shell bottom surface obliquely around this mouth of pipe from the cylindrical shell inner spout of described drain pipe; Described first ramp member and the second ramp member are at cylindrical shell bottom surface distance c, and Formation cross-section is the annular groove of upside-down trapezoid;
Described floating drum is the cover body of cone shape, when this cover body covers cylindrical shell inboard portion and second ramp member of described drain pipe this cover body circumference bottom embed described annular groove, and to touch with described cylindrical shell bottom surface.
Further, the cross section of described through hole is circular.
Further, the aperture of described through hole is 0.5mm ~ 1mm.
Further, the cross section of described through hole is regular polygon.
Further, the hemisphere face of described bolt head and the hemisphere face of described top section are the same centre ofs sphere.
Further, described drop cylinder also comprises the limited support be arranged on above described inner barrel and floating drum.
Further, the conical side wall of described floating drum and the domatic parallel of described second ramp member.
Further, be extended with bottom the circumference of described floating drum cross section be W shape every liquid parts, should every the inclined-plane, outside of liquid parts and the domatic parallel of described first ramp member.
Further, described height h is 3mm ~ 8mm.
Further, described distance c is 3mm ~ 6mm.
The invention has the beneficial effects as follows: the present invention crosses increase part flow arrangement, the medicinal liquid flow through suitably is shunted, and part flow arrangement end face is designed to sphere, all kinds of impurity is made preferentially to be deposited in spherical edges, can not obstruction conduit completely, add the through hole be evenly arranged, even if the through hole blocking of marginal portion, just reduce the flow velocity of medicinal liquid, transfusion device can use as usual, avoids blocking filter.Simultaneously, the present invention is by arranging the key of hemispheric bolt head and segmentation, effectively increase the quantity of air contact surfaces and air inlet, ensure that and effectively filter and clear air, thus can not block, and the hemisphere face of bolt head and the hemisphere face of top section are designed to the same centre of sphere, specification specification, is beneficial to batch production.And the present invention designs the floating drum of cone shape and the floating drum seat of cooperation, makes the situation that floating drum can not overturn, misplace, can after transfusion completes effective separation gas, considerably increase the safety of transfusion.The specification of design and increase prevent gas from entering the probability of human body further every liquid parts, there is actual meaning.
Accompanying drawing explanation
Fig. 1 is transfusion system structure schematic diagram of the present invention;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1;
Fig. 3 is the top view of part flow arrangement end face in the present invention;
Fig. 4 is the three-dimensional view of air filter in the present invention;
Fig. 5 is the elevation cross-sectional view of air filter in the present invention;
Fig. 6 is the structure front view of drop cylinder in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1 to Fig. 6, transfusion device of the present invention, comprises conduit, and is successively set on supravasal needle for inserting bottle 1, air inlet pipe 2, flow regulator 3, drop cylinder 4, part flow arrangement 5, liquid medicine filter 6 and puncture needle 7, and the air filter 8 filled in the mouth of pipe of air inlet pipe 2, wherein:
The sidewall of part flow arrangement 5 is close to the inwall of conduit, and part flow arrangement 5 is evenly arranged some through holes 51 run through up and down, and the cross section of through hole 51 is circular or regular polygon, and time circular, the aperture of through hole 51 is 0.5mm ~ 1mm.The end face (face towards drop cylinder 4 side) of part flow arrangement 5 is in protruding sphere.Because through hole 51 aperture of part flow arrangement 5 is very little, the impurity such as rubber slag are blocked, and again because the end face of part flow arrangement 5 is sphere, the through hole 51 of periphery, in surrounding, blocks by all kinds of impurity buildups at most, can use for a long time.
Air filter 8 comprises 81 bolt heads and columniform 82 keys,
Key 82 points is integrated adjacent top section 821, middle part 822 and bottom stage 823; Top section 821 is protruding, and in hemisphere shape, the centre of sphere is the key 82 cylinder end face center of circle;
Top section 821 and middle part 822 hollow and communicate, be filled with active carbon, for the harmful substance in absorbed air;
Bottom stage 823 fills in the mouth of pipe of air inlet pipe 2, and bottom stage 823 is evenly provided with some vertically through ventholes 8231, is communicated with middle part 822 and air inlet pipe 2;
Bolt head 81 is in hemispherical umbrella crown, and the hemisphere face that top section 821 detained by cover is fixedly installed, and namely the bottom surface of bolt head 81 and the hemisphere face of top section 821 touch;
Bolt head 81 is evenly provided with some through air inlets 811 along its hemisphere face, that is: air inlet 811 is communicated with extraneous air and top section 821, and point to the centre of sphere from sphere, so increase air contact surfaces because of sphere, in a disguised form add the quantity of air inlet 811 simultaneously, ensure that and effectively filter and clear air, not easily block.Meanwhile, sphere also not easily laying dust, can not block more.The hemisphere face of bolt head 81 and the hemisphere face of top section 821 be same centre ofs sphere, and so, specification specification, is beneficial to production.
Drop cylinder 4 comprises cylindrical shell 41, is arranged on the feed tube 42 at cylindrical shell 41 two ends and drain pipe 43, floating drum 44 and floating drum seat, wherein:
Floating drum seat comprises the first ramp member 451 and the second ramp member 452, first ramp member 451 from cylindrical shell 41 inwall certain altitude h and extends to cylindrical shell bottom surface obliquely around cylinder inboard wall; Second ramp member 452 is from the cylindrical shell inner spout of drain pipe 43 and extend to cylindrical shell bottom surface obliquely around this mouth of pipe; First ramp member 451 and the second ramp member 452 are at the bottom surface distance c of cylindrical shell 41, and Formation cross-section is the annular groove 453 of upside-down trapezoid; In the present embodiment, height h is 3mm ~ 8mm.Distance c is 3mm ~ 6mm, as optimal groove width and groove depth, ensure that the feasibility of separation gas, does not waste material simultaneously and manufactures the space of redundancy, can not affect the effect of transfusion.
Floating drum 44 be cone shape, drift angle upward, the cover body of hollow, this cover body, for covering cylindrical shell 41 inboard portion and second ramp member 452 of drain pipe 43, embeds annular groove 453 bottom the circumference of now cover body, and touches with the bottom surface of cylindrical shell 41, so, effectively gas can be completely cut off after having infused; Floating drum 44 floats because of medicinal liquid, falls after having infused, because of the conical side surface of the domatic and floating drum 44 of the first ramp member 451 and the second ramp member 452, the phenomenon can not overturn, misplaced, offsets slightly even if having, also can be under gravity, along domatic slip, reach final position.
In Fig. 6, the height residing for cylindrical shell inner spout of drain pipe 43 higher than height h, now, after transfusion completes, in annular groove 453, store full medicinal liquid, under now floating drum 44 covers, liquid is immersed bottom the circumference of floating drum 44, thus can effective separation gas, shortcoming is now the waste causing certain medicinal liquid.
In order to cut the waste to greatest extent, during design, make the height residing for cylindrical shell inner spout of drain pipe 43 lower than height h, even only a little more than the bottom surface of cylindrical shell 41, not attached respective drawings; Now, the phenomenon if be not added on restriction, easily overturn, misplaced, therefore, take more following measures:
Above cylindrical shell 41 inside and floating drum 44, limited support 9 is set; Make the domatic parallel of the conical side wall of floating drum 44 and the second ramp member 452; Extend bottom the circumference of floating drum 44, Formation cross-section be W shape every liquid parts 441, and should every the inclined-plane, outside (the outermost inclined-plane of W, as Fig. 6) of liquid parts 441 and the domatic parallel of the first ramp member 451.W shape will not store the isolation of full liquid segment in annular groove 453 every liquid parts 441, so, further ensure the isolation of gas, and ensure that the phenomenon that can not overturn, misplace.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (10)
1. a transfusion device, comprise conduit, and be successively set on described supravasal needle for inserting bottle, air inlet pipe, flow regulator, drop cylinder, liquid medicine filter and puncture needle, it is characterized in that, also comprise the part flow arrangement that is arranged on catheter interior between described drop cylinder and liquid medicine filter, and fill in the air filter of the mouth of pipe in described air inlet pipe, wherein:
The end face of described part flow arrangement is in protruding sphere, and the sidewall of described part flow arrangement is close to the inwall of described conduit, and described part flow arrangement is evenly arranged some through holes run through up and down;
Described air filter comprises bolt head and columniform key,
Described key divides and is integrated adjacent top section, middle part and bottom stage; Top section projection is in hemisphere shape; Top section and middle part hollow and communicate, fill active carbon; Bottom stage fills in the mouth of pipe of described air inlet pipe, and bottom stage is evenly provided with some vertically through ventholes;
Described bolt head is hemispherical umbrella crown, and the hemisphere face that described top section detained by cover is fixedly installed, and described bolt head is evenly provided with some through air inlets along its hemisphere face;
Described drop cylinder comprises cylindrical shell, is arranged on the feed tube at cylindrical shell two ends and drain pipe, floating drum and floating drum seat,
Described floating drum seat comprises from described cylinder inboard wall certain altitude h and extends to the first ramp member of cylindrical shell bottom surface around cylinder inboard wall obliquely, and extends to the second ramp member of cylindrical shell bottom surface obliquely around this mouth of pipe from the cylindrical shell inner spout of described drain pipe; Described first ramp member and the second ramp member are at cylindrical shell bottom surface distance c, and Formation cross-section is the annular groove of upside-down trapezoid;
Described floating drum is the cover body of cone shape, when this cover body covers cylindrical shell inboard portion and second ramp member of described drain pipe this cover body circumference bottom embed described annular groove, and to touch with described cylindrical shell bottom surface.
2. transfusion device according to claim 1, is characterized in that, the cross section of described through hole is circular.
3. transfusion device according to claim 2, is characterized in that, the aperture of described through hole is 0.5mm ~ 1mm.
4. transfusion device according to claim 1, is characterized in that, the cross section of described through hole is regular polygon.
5. transfusion device according to claim 1, is characterized in that, the hemisphere face of described bolt head and the hemisphere face of described top section are the same centre ofs sphere.
6. transfusion device according to claim 1, is characterized in that, described drop cylinder also comprises the limited support be arranged on above described inner barrel and floating drum.
7. transfusion device according to claim 1, is characterized in that, the conical side wall of described floating drum and the domatic parallel of described second ramp member.
8. the transfusion device according to claim 1 or 5 or 7, is characterized in that, be extended with bottom the circumference of described floating drum cross section be W shape every liquid parts, should every the inclined-plane, outside of liquid parts and the domatic parallel of described first ramp member.
9. transfusion device according to claim 1, is characterized in that, described height h is 3mm ~ 8mm.
10. the transfusion device according to claim 1 or 9, is characterized in that, described distance c is 3mm ~ 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169620.8A CN103920205B (en) | 2014-04-24 | 2014-04-24 | A kind of transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169620.8A CN103920205B (en) | 2014-04-24 | 2014-04-24 | A kind of transfusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103920205A CN103920205A (en) | 2014-07-16 |
| CN103920205B true CN103920205B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410169620.8A Expired - Fee Related CN103920205B (en) | 2014-04-24 | 2014-04-24 | A kind of transfusion device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201414965Y (en) * | 2009-05-31 | 2010-03-03 | 广东龙心医疗器械有限公司 | Infusion apparatus with functions of automatically stopping liquid medicine and preventing blood return |
| CN201880113U (en) * | 2010-12-16 | 2011-06-29 | 陈盈 | Infusion set |
| CN202113398U (en) * | 2011-05-13 | 2012-01-18 | 朱福弟 | Disposable automatic liquid-stopping transfusion apparatus |
| CN102580189A (en) * | 2012-02-14 | 2012-07-18 | 河南曙光健士医疗器械集团有限公司 | Disposable self-stopping infusion apparatus |
| CN102614558A (en) * | 2012-03-01 | 2012-08-01 | 戎静华 | Infusion apparatus capable of automatically exhausting due to liquid stop by floating plug |
| CN203915625U (en) * | 2014-04-24 | 2014-11-05 | 张玉榕 | A kind of transfusion device |
-
2014
- 2014-04-24 CN CN201410169620.8A patent/CN103920205B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201414965Y (en) * | 2009-05-31 | 2010-03-03 | 广东龙心医疗器械有限公司 | Infusion apparatus with functions of automatically stopping liquid medicine and preventing blood return |
| CN201880113U (en) * | 2010-12-16 | 2011-06-29 | 陈盈 | Infusion set |
| CN202113398U (en) * | 2011-05-13 | 2012-01-18 | 朱福弟 | Disposable automatic liquid-stopping transfusion apparatus |
| CN102580189A (en) * | 2012-02-14 | 2012-07-18 | 河南曙光健士医疗器械集团有限公司 | Disposable self-stopping infusion apparatus |
| CN102614558A (en) * | 2012-03-01 | 2012-08-01 | 戎静华 | Infusion apparatus capable of automatically exhausting due to liquid stop by floating plug |
| CN203915625U (en) * | 2014-04-24 | 2014-11-05 | 张玉榕 | A kind of transfusion device |
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| Publication number | Publication date |
|---|---|
| CN103920205A (en) | 2014-07-16 |
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