CN102895720B - Transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions - Google Patents
Transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions Download PDFInfo
- Publication number
- CN102895720B CN102895720B CN201210411584.2A CN201210411584A CN102895720B CN 102895720 B CN102895720 B CN 102895720B CN 201210411584 A CN201210411584 A CN 201210411584A CN 102895720 B CN102895720 B CN 102895720B
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- Prior art keywords
- dropping funnel
- filtration rete
- stopping
- liquid
- rete
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- 239000007788 liquid Substances 0.000 title claims abstract description 57
- 239000008280 blood Substances 0.000 title claims abstract description 26
- 210000004369 blood Anatomy 0.000 title claims abstract description 26
- 230000002265 prevention Effects 0.000 title claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 104
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims description 31
- 238000003466 welding Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000004695 Polyether sulfone Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229920006393 polyether sulfone Polymers 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 238000000108 ultra-filtration Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002775 capsule Substances 0.000 description 13
- 239000003814 drug Substances 0.000 description 9
- 238000001802 infusion Methods 0.000 description 5
- 210000003462 vein Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions. The transfusion apparatus comprises an upper drip funnel, a lower drip funnel, a drip funnel cover and a liquid discharge pipe, wherein the drip funnel cover is provided with a liquid inlet pipe and a two-way pipe; the upper drip funnel is connected with the lower drip funnel through a hollow drip funnel seat; the upper end of the hollow drip funnel seat is connected with an alarming device; the inner cavity of the hollow drip funnel seat is provided with a double-layer filtration membrane structure; the filtration membrane structure is composed of an inner filtration membrane layer and an outer filtration membrane layer, and the outer filtration membrane layer is composed of ultrafiltration membranes; the lower part of the hollow drip funnel seat constitutes a liquid discharge barrel; and the side wall of the liquid discharge barrel is provided with multiple liquid discharge holes. The transfusion apparatus is simple and reliable in structure; two layers of filtration membranes made of different materials are adopted, and the outer filtration membrane layer adopts the ultrafiltration membrane, so that the functions of automatic liquid stopping and blood returning prevention are realized; the outer filtration membrane has good hydrophilicity and bubble separation and secondary filtration effects; and the liquid transfusion situation can be known through observing the alarming device, and when an arrow on the alarming device perks upwardly, the liquid transfusion is completed.
Description
Technical field
The present invention relates to the category of medical apparatus and instruments, be specifically related to a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function.
Background technology
Transfusion device is used for the venous transfusion in medicine and hygiene fields.In order to prevent air from entering patient's vein and transfusion device automatic-diversion closure after medicinal liquid infusion-completed, ensureing the safety of patient fluid infusion's overall process, to reach the usefulness of vein safe infusion, having invented automatic liquid-stopping transfusion apparatus.At present, existing automatic liquid-stopping transfusion apparatus, if publication number is that CN102451495A filters capsule blood return preventing infusion device, it is characterized in that: in funnel, have the filter capsule that a liquid medicine filtering membrane is made, its upper end closed, lower end is connected through bipass and downcomer, has a drainage strip, the upper end of drainage strip is connected with filter capsule, and lower end is at funnel outlet.Excessive gas in funnel is discharged downwards through filter capsule and downcomer by this structure, and when liquid level ultra-filtration capsule in funnel, automatic vent stops.When medicinal liquid stream is complete, filter capsule, due to the face table tension force effect of liquid, stops gas to reach automatic liquid-stopping effect by filter capsule, and the debris of hopper base is guided to filter capsule and carried out trace and infuse and reach blood return prevention effect by drainage strip.
But this transfusion device also exists following shortcoming: 1. when replacing the second bottle liquid medicine, because the junction of filter capsule and bipass has concavo-convex, easily produce friction, when liquid is intercepted through out-of-date, thus produce bubble; 2. this bubble is not upwards discharged by filter capsule, can only discharge through downcomer; 3. filter capsule realize blood return prevention, blood return prevention weak effect by with the drainage strip that is connected of filter capsule debris in funnel being entered; 4. the filter membrane of this filter capsule can not realize secondary filter.And medicinal liquid usually and the color of transfusion device be close, be not easy to the liquid medicine that people observe in infusion unit titrimeter and whether be totally lost, can not notify that medical worker takes out transfusion needle in time.
Summary of the invention
The object of the invention is, in order to overcome above deficiency, to provide a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function.This transfusion device has automatic liquid-stopping, intercepts bubble, secondary filter, blood return prevention and warning alert function.
Object of the present invention can be achieved through the following technical solutions:
A kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function, comprise dropping funnel, lower dropping funnel, dropping funnel lid and drain pipe, cover at dropping funnel and be provided with feed tube and bipass, it is characterized in that: described upper dropping funnel is connected with lower dropping funnel by hollow dropping funnel seat, alarming device is connected with in the upper end of hollow dropping funnel seat, be provided with double medium filtration membrane structure at the inner chamber of hollow dropping funnel seat, this filter membrane structure is made up of inner filtration rete and outer filtration rete, and outer filtration rete is made up of ultrafilter membrane; The bottom of hollow dropping funnel seat forms and fluid cylinder, is provided with multiple liquid outlet at the sidewall going out fluid cylinder; Described inner filtration rete is arranged on the liquid outlet bottom of fluid barrel, and described outer filtration rete is arranged on the liquid outlet top of fluid barrel.
Be convenient to by alarming device the situation understanding dropping funnel inner liquid medicine, thus play the effect of warning alert.Double medium filtration membrane structure is set, and the outer rete that filters adopts ultrafilter membrane, inner filtration rete adopts common filter membrane, because medicinal liquid is different in the time of the filter membrane inner filtration of two kinds of unlike materials, the inner filtration rete rate of filtration is slow, outer filtration rete filters fast, when transfusion completes, when the medicinal liquid stream in outer filtration rete is complete, now, the pressure in outer filtration rete feed liquor face is equivalent to human vein pressure, thus achieves automatic liquid-stopping effect, and only after liquid, bubble is discharged from the needle for inserting bottle air lock empty dropping funnel; Because also leaving certain medicinal liquid in inner filtration rete, the medicinal liquid in interior filter membrane slowly infiltrates, and carries out trace transfusion, maintain the state of transfusion, serve the effect of blood return prevention with extremely slow speed; The ultrafilter membrane that outer filtration rete adopts has hydrophilic, intercepts the effect of bubble, secondary filter.
Object of the present invention can also be achieved through the following technical solutions:
Further scheme of the present invention: be provided with two alarming device installing holes in the upper end of hollow dropping funnel seat, described in go out fluid cylinder be coniform.Alarming device installing hole is convenient to install alarming device, and it is coniform for going out fluid cylinder, is convenient to liquid medicine flow and installs filter membrane.
Further scheme of the present invention: alarming device comprises warning mark and warning mark post, the two ends of warning mark post are separately positioned in the alarming device installing hole of hollow dropping funnel seat, ring groove is provided with in the middle part of warning mark post, warning mark is provided with the draw-in groove be slidably matched with ring groove, and one end of warning mark is arrowhead-shaped.This structure is simply convenient to connect, and when there being liquid in dropping funnel, because of the effect of buoyancy, warning mark arrow end is downward, and the other end upwards floats; When the liquid medicine in dropping funnel reduces, the buoyancy of generation is not enough, and when the arrow end of warning mark will be upturned, in warning, dropping funnel inner liquid medicine is totally lost.
Further scheme of the present invention: the arrowhead-shaped arrow that takes on a red color of described warning mark.The arrow of warning mark is arranged and takes on a red color, be convenient to people and observe.
Further scheme of the present invention: described inner filtration rete is arranged on the liquid outlet bottom of fluid barrel; Described outer filtration rete is arranged on the liquid outlet top of fluid barrel.
Part medicinal liquid passes through fluid cylinder and flows in inner filtration rete, outer filtration rete is penetrated into again by inner filtration rete, another part medicinal liquid is flowed directly in outer filtration rete by the liquid outlet of fluid barrel and filters, bubble swims in inner filtration rete upper end because of himself buoyancy, enter in outer filtration rete by the liquid outlet gone out on fluid cylinder, by outer filtration rete, bubble is blocked in outer filtration rete.
Further scheme of the present invention: described fluid barrel is provided with three liquid outlets.Ensure that the medicinal liquid in dropping funnel can meet the supply of outer filtration rete.
Further scheme of the present invention: described inner filtration rete and outer filtration rete are barrel-shaped, the gap of described inner filtration rete and outer filtration rete is 1.5 ~ 2.5mm.Be convenient to contamination precipitation in the medicinal liquid bottom at inner filtration rete and outer filtration rete, medicinal liquid penetrates from inner filtration rete and outer filtration rete wall, the gap between inner filtration rete and outer filtration rete, ensure that the filtration flow-rate of inside and outside two-layer filter membrane is unimpeded.
Further scheme of the present invention: described inner filtration rete and outer filter membrane lamellar spacing are 2mm.This distance makes the strainability of outer filtration rete best.
Further scheme of the present invention: described inner filtration rete is made up of fiber micropore diameter nethike embrane, described outer filtration rete is made up of polyether sulfone compound nethike embrane.Because polyether sulfone compound nethike embrane has stronger hydrophilicity, effectively can intercept bubble, the impurity of 5 microns can be filtered, thus realize secondary filter.Inner filtration rete adopts general fibre micropore diameter nethike embrane, makes the inner filtration rete rate of filtration slow, and outer filtration rete adopts polyether sulfone compound nethike embrane, outer filtration rete is filtered fast, thus achieves the effect of automatic liquid-stopping, blood return prevention.
Further scheme of the present invention: upper dropping funnel and lower dropping funnel by thermal compression welding on hollow dropping funnel seat, inner filtration rete and outer filtration rete by thermal compression welding on fluid barrel.Adopt thermal compression welding welding more accurate, decrease medicinal liquid and produce bubble in flow process in dropping funnel.
Beneficial effect of the present invention:
Of the present invention simple and reasonable for structure, whether be upturned by the red arrow observing alarming device, the situation of dropping funnel inner liquid medicine can be understood, thus serve the effect of warning alert.
The present invention adopts double medium filtration membrane structure, and inner filtration rete adopts common nethike embrane, and outer filtration rete adopts ultrafilter membrane, and has certain distance between inside and outside two membranes.When transfusion completes, the pressure in outer filtration rete feed liquor face is equivalent to human vein pressure, achieves automatic liquid-stopping function afterwards; Because also leaving certain medicinal liquid in inner filtration rete, by filtering rete infiltrating slowly, thus achieve the effect of blood return prevention; Outer filtration rete has again stop bubble and secondary filter effect.Inside and outside two-layer filter membrane adopts barrel-shaped, and be convenient to contamination precipitation bottom drum, medicinal liquid goes out from drum wall perimetric penetration.
This adopts thermal compression welding, thus minimizing produces bubble in infusion process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of hollow dropping funnel seat of the present invention.
Fig. 3 is the structural representation of alarming device of the present invention.
Fig. 4 is the structural representation of the warning mark in Fig. 3.
Fig. 5 is the structural representation of the warning mark post in Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Specific embodiment 1:
As shown in Figure 1, Figure 2, a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function shown in Fig. 3, Fig. 4 and Fig. 5, comprise dropping funnel 1-1, lower dropping funnel 1-2, dropping funnel lid 3 and drain pipe 2, dropping funnel lid 3 is provided with feed tube 4 and bipass 5, described upper dropping funnel 1-1 is connected with lower dropping funnel 1-2 by hollow dropping funnel seat 8, alarming device 6 is connected with in the upper end of hollow dropping funnel seat 8, double medium filtration membrane structure 7 is provided with at the inner chamber of hollow dropping funnel seat 8, this filter membrane structure 7 is made up of inner filtration rete 7-1 and outer filtration rete 7-2, and outer filtration rete 7-2 is made up of ultrafilter membrane; The bottom of hollow dropping funnel seat 8 forms and fluid cylinder 8-2, is provided with three liquid outlet 8-3 at the sidewall going out fluid cylinder 8-2; Described inner filtration rete 7-1 is arranged on the liquid outlet bottom of fluid barrel, and described outer filtration rete 7-2 is arranged on the liquid outlet top of fluid barrel.
Shown in Figure 2, be provided with two alarming device installing hole 8-1 in the upper end of hollow dropping funnel seat 8, described in go out fluid cylinder 8-2 be coniform.
Warning mark 6-1 and warning mark post 6-2 is comprised see alarming device 6 shown in Fig. 3, Fig. 4 and Fig. 5, the two ends of warning mark post 6-2 are separately positioned in the alarming device installing hole 8-1 of hollow dropping funnel seat 8, ring groove 6-3 is provided with in the middle part of warning mark post 6-2, warning mark 6-1 is provided with the draw-in groove 6-4 be slidably matched with ring groove 6-3, one end of warning mark 6-1 is arrowhead-shaped, and relatively with the other end gently, the arrowhead-shaped arrow that takes on a red color of described warning mark 6-1.
Inner filtration rete 7-1 shown in Figure 1 is arranged on out the liquid outlet 8-3 bottom of fluid cylinder 8-2 wall; Described outer filtration rete 7-2 is arranged on out the liquid outlet 8-3 top of fluid cylinder 8-2 wall, described inner filtration rete 7-1 and outer filtration rete 7-2 is barrel-shaped, the gap of described inner filtration rete 7-1 and outer filtration rete 7-2 is 1.5mm, described inner filtration rete 7-1 is made up of fiber micropore diameter nethike embrane, and described outer filtration rete 7-2 is made up of polyether sulfone compound nethike embrane.
Described upper dropping funnel 1-1 is by the outside of thermal compression welding at hollow dropping funnel seat 8, and lower dropping funnel 1-2 is by the inner side of thermal compression welding at hollow dropping funnel seat 8, and in guarantee, dropping funnel 1-1 and lower dropping funnel 1-2 installs stable.Described inner filtration rete 7-1 and outer filtration rete 7-2 is being gone out on fluid cylinder 8-2 wall by thermal compression welding.
Specific embodiment 2:
The feature of this enforcement is: the distance having 2mm between described inner filtration rete 7-1 and outer filtration rete 7-2.Other structures are identical with specific embodiment 1.
Specific embodiment 3:
The feature of the present embodiment is: the distance having 2.5mm between described inner filtration rete 7-1 and outer filtration rete 7-2.Other structures are identical with specific embodiment 1.
Claims (10)
1. one kind has automatic liquid-stopping, the transfusion device of blood return prevention and warning function, comprise dropping funnel (1-1), lower dropping funnel (1-2), dropping funnel lid (3) and drain pipe (2), dropping funnel lid (3) is provided with feed tube (4) and bipass (5), it is characterized in that: described upper dropping funnel (1-1) is connected with lower dropping funnel (1-2) by hollow dropping funnel seat (8), alarming device (6) is connected with in the upper end of hollow dropping funnel seat (8), double medium filtration membrane structure (7) is provided with at the inner chamber of hollow dropping funnel seat (8), this filter membrane structure (7) is made up of inner filtration rete (7-1) and outer filtration rete (7-2), outer filtration rete (7-2) is made up of ultrafilter membrane, the bottom of hollow dropping funnel seat (8) forms and fluid cylinder (8-2), is provided with multiple liquid outlet (8-3) at the sidewall going out fluid cylinder (8-2), described inner filtration rete (7-1) is arranged on the liquid outlet bottom of fluid barrel, and described outer filtration rete (7-2) is arranged on the liquid outlet top of fluid barrel.
2. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 1, it is characterized in that: be provided with two alarming device installing holes (8-1) in the upper end of hollow dropping funnel seat (8), described in go out fluid cylinder (8-2) in coniform.
3. one according to claim 2 has automatic liquid-stopping, the transfusion device of blood return prevention and warning function, it is characterized in that: alarming device (6) comprises warning mark (6-1) and warning mark post (6-2), the two ends of warning mark post (6-2) are separately positioned in the alarming device installing hole (8-1) of hollow dropping funnel seat (8), ring groove (6-3) is provided with at warning mark post (6-2) middle part, warning mark (6-1) is provided with the draw-in groove (6-4) be slidably matched with ring groove (6-3), one end of warning mark (6-1) is arrowhead-shaped.
4. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 3, is characterized in that: the arrowhead-shaped arrow that takes on a red color of described warning mark (6-1).
5. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 1 and 2, is characterized in that: described inner filtration rete (7-1) is arranged on out liquid outlet (8-3) bottom of fluid cylinder (8-2) wall; Described outer filtration rete (7-2) is arranged on out liquid outlet (8-3) top of fluid cylinder (8-2) wall.
6. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 1, is characterized in that: described in go out fluid cylinder (8-2) wall and be provided with three liquid outlets (8-3).
7. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 5, it is characterized in that: described inner filtration rete (7-1) and outer filtration rete (7-2) are in barrel-shaped, and described inner filtration rete (7-1) is 1.5 ~ 2.5mm with the gap of outer filtration rete (7-2).
8. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 7, is characterized in that: described inner filtration rete (7-1) and outer filtration rete (7-2) gap are 2mm.
9. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 1 or 7, it is characterized in that: described inner filtration rete (7-1) is made up of fiber micropore diameter nethike embrane, described outer filtration rete (7-2) is made up of polyether sulfone compound nethike embrane.
10. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 1 and 2, it is characterized in that: upper dropping funnel (1-1) and lower dropping funnel (1-2) are by thermal compression welding on hollow dropping funnel seat (8), and inner filtration rete (7-1) and outer filtration rete (7-2) are being gone out on fluid cylinder (8-2) wall by thermal compression welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411584.2A CN102895720B (en) | 2012-10-24 | 2012-10-24 | Transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411584.2A CN102895720B (en) | 2012-10-24 | 2012-10-24 | Transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102895720A CN102895720A (en) | 2013-01-30 |
| CN102895720B true CN102895720B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210411584.2A Expired - Fee Related CN102895720B (en) | 2012-10-24 | 2012-10-24 | Transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions |
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| Country | Link |
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| CN (1) | CN102895720B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027869B (en) * | 2013-03-06 | 2016-08-10 | 郑州昊能科技有限公司 | A kind of venous transfusion volume dropping funnel |
| CN103977473A (en) * | 2014-05-16 | 2014-08-13 | 戎静华 | Automatic stopping infusion device provided with exhausting fluid storing tube and micro-flow-rate infusion tube |
| CN104189969A (en) * | 2014-05-24 | 2014-12-10 | 戎静华 | Automatic liquid-stopping infusion apparatus with novel exhaust liquid-storage tube |
| CN105944178B (en) * | 2016-06-22 | 2023-02-14 | 南京鑫博维新材料技术有限公司 | Self-destruction type automatic exhaust anti-reflux needleless infusion apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315958Y (en) * | 1997-06-17 | 1999-04-28 | 王建华 | Recovery and infusion device for patient oneself blood |
| CN201263816Y (en) * | 2008-08-21 | 2009-07-01 | 钟秀仙 | Infusion device with filtering function |
| CN101954132A (en) * | 2010-09-30 | 2011-01-26 | 戎静华 | Exhaust device for blood-returning preventive infusion device |
| CN202173641U (en) * | 2011-08-01 | 2012-03-28 | 周一臣 | Transfusion device with an automatic transfusion-stop, blood backflow prevention and filter structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10340012A1 (en) * | 2003-08-30 | 2005-04-07 | Roche Diagnostics Gmbh | Device for gas or liquid separation from microfluidic flow systems |
-
2012
- 2012-10-24 CN CN201210411584.2A patent/CN102895720B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315958Y (en) * | 1997-06-17 | 1999-04-28 | 王建华 | Recovery and infusion device for patient oneself blood |
| CN201263816Y (en) * | 2008-08-21 | 2009-07-01 | 钟秀仙 | Infusion device with filtering function |
| CN101954132A (en) * | 2010-09-30 | 2011-01-26 | 戎静华 | Exhaust device for blood-returning preventive infusion device |
| CN202173641U (en) * | 2011-08-01 | 2012-03-28 | 周一臣 | Transfusion device with an automatic transfusion-stop, blood backflow prevention and filter structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102895720A (en) | 2013-01-30 |
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