CN102895720A - 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
- CN102895720A CN102895720A CN2012104115842A CN201210411584A CN102895720A CN 102895720 A CN102895720 A CN 102895720A CN 2012104115842 A CN2012104115842 A CN 2012104115842A CN 201210411584 A CN201210411584 A CN 201210411584A CN 102895720 A CN102895720 A CN 102895720A
- Authority
- CN
- China
- Prior art keywords
- dropping funnel
- filtration rete
- stopping
- liquid
- automatic liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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 of medicine and hygiene fields.In order to prevent that air from entering patient's vein and transfusion device automatic-diversion closure behind the medicinal liquid infusion-completed, guarantee the infuse safety of overall process of patient, to reach the usefulness of vein safe infusion, invented automatic liquid-stopping transfusion apparatus.At present, existing automatic liquid-stopping transfusion apparatus, be CN102451495A filter capsule blood return preventing infusion device such as publication number, it is characterized in that: the filter capsule that in funnel, has a liquid medicine filtering membrane to make, its upper end closed, the lower end is connected through bipass and downcomer, and a drainage strip is arranged, the upper end of drainage strip is connected with the filter capsule, and the lower end is at the funnel outlet.This structure is discharged the unnecessary gas in the funnel downwards through filter capsule and downcomer, and automatic vent stops when the liquid level ultra-filtration capsule in the funnel.When medicinal liquid has flowed, the filter capsule is because the face table tension force effect of liquid stops gas to reach the automatic liquid-stopping effect by the filter capsule, and drainage strip is guided to the filter capsule with the debris of hopper base and carried out trace and infuse and reach the blood return prevention effect.
But also there is following shortcoming in this transfusion device: 1. when changing the second bottle liquid medicine, because that the junction of filter capsule and bipass has is concavo-convex, easily produce friction, when liquid is intercepted through out-of-date, thereby produce bubble; 2. this bubble can not upwards be discharged by the filter capsule, can only discharge through downcomer; 3. by the drainage strip that links to each other with the filter capsule debris in the funnel is entered the filter capsule and realize blood return prevention, the blood return prevention weak effect; 4. the filter membrane of this filter capsule can not be realized secondary filter.Whether and medicinal liquid usually is close with the color of transfusion device, be not easy to people and observe the interior liquid medicine of infusion unit titrimeter and be totally lost, and can not in time notify the medical worker to take out transfusion needle.
Summary of the invention
The objective of the invention is provides a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function in order to overcome above deficiency.This transfusion device has automatic liquid-stopping, obstruct bubble, secondary filter, blood return prevention and caution warning function.
Purpose 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 to be provided with feed tube and bipass, it is characterized in that: described upper dropping funnel links to each other with lower dropping funnel by hollow dropping funnel seat, upper end at hollow dropping funnel seat is connected with alarming device, inner chamber at hollow dropping funnel seat is provided with the double medium filtration membrane structure, and this filter membrane structure is made of inner filtration rete and outer filtration rete, and outer filtration rete is made of ultrafilter membrane; The bottom of hollow dropping funnel seat consists of and fluid cylinder, is provided with a plurality of liquid outlets at the sidewall that goes out fluid cylinder.
Be convenient to understand the situation of dropping funnel inner liquid medicine by alarming device, thereby play the effect that caution is reported to the police.The double medium filtration membrane structure is set, and filter rete outward and adopt ultrafilter membrane, the inner filtration rete adopts common filter membrane, because of the asynchronism(-nization) of medicinal liquid at 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 is finished, when the medicinal liquid in the outer filtration rete has flowed, at this moment, the pressure of outer filtration rete feed liquor face is equivalent to human vein pressure, thereby has realized the automatic liquid-stopping effect, and only bubble is discharged from the needle for inserting bottle air lock on the empty dropping funnel behind the liquid; Because also leaving certain medicinal liquid in the inner filtration rete, the medicinal liquid in the interior filter membrane slowly infiltrates, and carries out the trace transfusion with extremely slow speed, has kept the state of transfusion, has played the effect of blood return prevention; The ultrafilter membrane that outer filtration rete adopts has hydrophilic, intercepts the effect of bubble, secondary filter.
Purpose 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, describedly go out fluid cylinder and be coniform.The alarming device installing hole is convenient to install alarming device, goes out fluid cylinder and is coniform, is convenient to the medicinal liquid circulation and filter membrane is installed.
Further scheme of the present invention: alarming device comprises warning mark and caution mark post, the two ends of caution mark post are separately positioned in the alarming device installing hole of hollow dropping funnel seat, be provided with ring groove at caution mark post middle part, be provided with the draw-in groove that is slidingly matched with ring groove at warning mark, an end of warning mark is arrowhead-shaped.This simple in structure being convenient to connects, and when in the dropping funnel liquid being arranged, because of the effect of buoyancy, warning mark arrow end is downward, and the other end upwards floats; Liquid medicine in dropping funnel reduces, and the buoyancy of generation is not enough, and when the arrow end of warning mark will be upturned, the dropping funnel inner liquid medicine was totally lost in the caution.
Further scheme of the present invention: the arrowhead-shaped arrow that takes on a red color of described warning mark.The arrow setting of warning mark is taken 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 flows in the inner filtration rete by going out fluid cylinder, penetrate into outer filtration rete by the inner filtration rete again, the liquid outlet of another part medicinal liquid by the fluid barrel flows directly in the outer filtration rete and filters, bubble swims in inner filtration rete upper end because of himself buoyancy, enter in the outer filtration rete by the liquid outlet that goes out on the fluid cylinder, by outer filtration rete bubble is blocked in the outer filtration rete.
Further scheme of the present invention: described fluid barrel is provided with three liquid outlets.Guarantee that the medicinal liquid in the dropping funnel can satisfy the supply of outer filtration rete.
Further scheme of the present invention: described inner filtration rete and outer filtration rete are barrel-shaped, and 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 in the bottom of inner filtration rete and outer filtration rete, medicinal liquid penetrates from inner filtration rete and outer filtration rete wall, and the gap between inner filtration rete and the outer filtration rete has guaranteed 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 of fiber micropore diameter nethike embrane, and described outer filtration rete is made of the compound nethike embrane of polyether sulfone.Because the compound nethike embrane of polyether sulfone has stronger hydrophilicity, can effectively intercept bubble, can filter 5 microns impurity, thereby realize secondary filter.The inner filtration rete adopts general fibre micropore diameter nethike embrane, makes the inner filtration rete rate of filtration slow, and outer filtration rete adopts the compound nethike embrane of polyether sulfone, outer filtration rete is filtered fast, thereby has realized 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 the fluid barrel.Adopt the thermal compression welding welding more accurate, reduced medicinal liquid and in dropping funnel, produced bubble in the flow process.
Beneficial effect of the present invention:
Of the present invention simple and reasonable for structure, whether be upturned by the red arrow of observing alarming device, can understand the situation of dropping funnel inner liquid medicine, thereby play the effect that caution is reported to the police.
The present invention adopts the double medium filtration membrane structure, and the inner filtration rete adopts common nethike embrane, and outer filtration rete adopts ultrafilter membrane, and certain distance is arranged between the inside and outside two membranes.When transfusion is finished, the pressure of outer filtration rete feed liquor face is equivalent to human vein pressure, has realized afterwards the automatic liquid-stopping function; Because also leaving certain medicinal liquid in the inner filtration rete, by filtering rete infiltrating slowly, thereby realized the effect of blood return prevention; Outer filtration rete has again the bubble of stopping and secondary filter effect.Inside and outside two-layer filter membrane adopts barrel-shaped, is convenient to contamination precipitation in the drum bottom, and medicinal liquid penetrates around the drum wall.
This is adopted thermal compression welding, produces bubble thereby reduce in infusion process.
Description of drawings
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 among Fig. 3.
Fig. 5 is the structural representation of the caution mark post among Fig. 3.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Specific embodiment 1:
Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function shown in Figure 5, comprise dropping funnel 1-1, lower dropping funnel 1-2, dropping funnel lid 3 and drain pipe 2, be provided with feed tube 4 and bipass 5 at dropping funnel lid 3, described upper dropping funnel 1-1 links to each other with lower dropping funnel 1-2 by hollow dropping funnel seat 8, upper end at hollow dropping funnel seat 8 is connected with alarming device 6, inner chamber at hollow dropping funnel seat 8 is provided with double medium filtration membrane structure 7, this filter membrane structure 7 is made of inner filtration rete 7-1 and outer filtration rete 7-2, and outer filtration rete 7-2 is made of ultrafilter membrane; The bottom of hollow dropping funnel seat 8 consists of and fluid cylinder 8-2, is provided with three liquid outlet 8-3 at the sidewall that goes out fluid cylinder 8-2.
Referring to shown in Figure 2, be provided with two alarming device installing hole 8-1 in the upper end of hollow dropping funnel seat 8, describedly go out fluid cylinder 8-2 and be coniform.
Comprise warning mark 6-1 and caution mark post 6-2 referring to Fig. 3, Fig. 4 and alarming device shown in Figure 56, the two ends of caution mark post 6-2 are separately positioned in the alarming device installing hole 8-1 of hollow dropping funnel seat 8, be provided with ring groove 6-3 at caution mark post 6-2 middle part, be provided with the draw-in groove 6-4 that is slidingly matched with ring groove 6-3 at warning mark 6-1, the end of warning mark 6-1 is arrowhead-shaped, and relatively and the other end light, the arrowhead-shaped arrow that takes on a red color of described warning mark 6-1.
Be arranged on out the liquid outlet 8-3 bottom of fluid cylinder 8-2 wall referring to inner filtration rete 7-1 shown in Figure 1; 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 are 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 of fiber micropore diameter nethike embrane, and described outer filtration rete 7-2 is made of the compound nethike embrane of polyether sulfone.
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 inboard of thermal compression welding at hollow dropping funnel seat 8, and dropping funnel 1-1 and lower dropping funnel 1-2 install stable in the assurance.Described inner filtration rete 7-1 and outer filtration rete 7-2 are going out on the fluid cylinder 8-2 wall by thermal compression welding.
Specific embodiment 2:
The characteristics of this enforcement are: the distance that 2mm is arranged between described inner filtration rete 7-1 and the outer filtration rete 7-2.Other structures are identical with specific embodiment 1.
Specific embodiment 3:
The characteristics of the present embodiment are: the distance that 2.5mm is arranged between described inner filtration rete 7-1 and the 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), be provided with feed tube (4) and bipass (5) at dropping funnel lid (3), it is characterized in that: described upper dropping funnel (1-1) links to each other with lower dropping funnel (1-2) by hollow dropping funnel seat (8), be connected with alarming device (6) in the upper end of hollow dropping funnel seat (8), inner chamber at hollow dropping funnel seat (8) is provided with double medium filtration membrane structure (7), this filter membrane structure (7) is made of inner filtration rete (7-1) and outer filtration rete (7-2), and outer filtration rete (7-2) is made of ultrafilter membrane; The bottom of hollow dropping funnel seat (8) consists of and fluid cylinder (8-2), is provided with a plurality of liquid outlets (8-3) at the sidewall that goes out fluid cylinder (8-2).
2. a kind of transfusion device with automatic liquid-stopping, blood return prevention and warning function according to claim 1 is characterized in that: be provided with two alarming device installing holes (8-1) in the upper end of hollow dropping funnel seat (8), describedly go out fluid cylinder (8-2) and be coniform.
3. a kind of automatic liquid-stopping that has according to claim 2, the transfusion device of blood return prevention and warning function, it is characterized in that: alarming device (6) comprises warning mark (6-1) and caution mark post (6-2), the two ends of caution mark post (6-2) are separately positioned in the alarming device installing hole (8-1) of hollow dropping funnel seat (8), be provided with ring groove (6-3) at caution mark post (6-2) middle part, be provided with the draw-in groove (6-4) that is slidingly matched with ring groove (6-3) at warning mark (6-1), an 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, it 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: describedly 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 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) is 2mm with outer filtration rete (7-2) gap.
9. according to claim 1 or 7 described a kind of transfusion devices with automatic liquid-stopping, blood return prevention and warning function, it is characterized in that: described inner filtration rete (7-1) is made of fiber micropore diameter nethike embrane, and described outer filtration rete (7-2) is made of the compound nethike embrane of polyether sulfone.
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: on hollow dropping funnel seat (8), inner filtration rete (7-1) and outer filtration rete (7-2) are going out on fluid cylinder (8-2) wall by thermal compression welding by thermal compression welding for upper dropping funnel (1-1) and lower dropping funnel (1-2).
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 true CN102895720A (en) | 2013-01-30 |
| CN102895720B CN102895720B (en) | 2015-06-17 |
Family
ID=47568398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102895720B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104027869A (en) * | 2013-03-06 | 2014-09-10 | 郑州昊能科技有限公司 | Novel venous transfusion volume drip chamber |
| CN104189969A (en) * | 2014-05-24 | 2014-12-10 | 戎静华 | Automatic liquid-stopping infusion apparatus with novel exhaust liquid-storage tube |
| CN105944178A (en) * | 2016-06-22 | 2016-09-21 | 南京鑫博维新材料技术有限公司 | Auto-disposal auto-exhaustion anti-reflux needleless infusion set |
Citations (5)
| 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 |
| WO2005028066A1 (en) * | 2003-08-30 | 2005-03-31 | Roche Diagnostics Gmbh | Device for separating gas or liquid from microfluidic through-flow systems |
| 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 |
-
2012
- 2012-10-24 CN CN201210411584.2A patent/CN102895720B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| WO2005028066A1 (en) * | 2003-08-30 | 2005-03-31 | Roche Diagnostics Gmbh | Device for separating gas or liquid from microfluidic through-flow systems |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027869A (en) * | 2013-03-06 | 2014-09-10 | 郑州昊能科技有限公司 | Novel venous transfusion volume drip chamber |
| 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 |
| CN105944178A (en) * | 2016-06-22 | 2016-09-21 | 南京鑫博维新材料技术有限公司 | Auto-disposal auto-exhaustion anti-reflux needleless infusion set |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102895720B (en) | 2015-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102512723B (en) | Self-exhaust and bubble-proof transfusion apparatus | |
| CN102895720B (en) | Transfusion apparatus with automatic liquid stopping, blood returning prevention and alarming functions | |
| CN202637636U (en) | Blood return prevention liquid medicine filter and automatic venting infusion device with same | |
| CN101927043A (en) | Medical intravenous infusion set | |
| CN203874225U (en) | Automatic nuclear pore film liquid stopping precise infusion filter | |
| CN101927044A (en) | Intravenous infusion set capable of exhausting air automatically | |
| CN201798965U (en) | Venous transfusion device capable of automatic exhaust | |
| CN103120811B (en) | Transfusion device capable of resisting blood return and medical infusion instrument thereof | |
| CN106512138A (en) | Dual-valve purification vein infusion device provided with filtering elastic valve and elastic buoyant valve | |
| CN201949451U (en) | Infusion apparatus with multifunctional medicine liquid filter | |
| CN102000373A (en) | Manufacturing method of safe transfusion system based on bubbling point pressure principle | |
| CN202875941U (en) | Automatic exhausted infusion apparatus | |
| CN203469124U (en) | Dripping bucket with liquid stopping function and filtration function and infusion device | |
| CN111388800A (en) | Self-stopping precise infusion apparatus | |
| CN202173641U (en) | Transfusion device with an automatic transfusion-stop, blood backflow prevention and filter structure | |
| CN201399134Y (en) | Dropping-funnel and filter integrated precise-filtering transfusion device | |
| CN204092699U (en) | New type auto Liquid level, from only liquid transfusion device | |
| CN203196060U (en) | Blood return resistant infusion device and medical infusion device thereof | |
| CN102462873A (en) | Infusion device of multifunctional liquor filter | |
| CN203749921U (en) | Infusion set with anti-bubble precision membrane for liquid stop | |
| CN102872498B (en) | Murphy's drooper assembly with liquid level-lowering function | |
| CN204910356U (en) | Gas -tight bubble is from exhausting liquid medicine filter for transfusion system | |
| CN103041468B (en) | A kind of infusion unit titrimeter of blood return prevention and blood return preventing infusion device | |
| CN201744018U (en) | Puncture outfit for dripping-off-proof infusion set | |
| CN204951842U (en) | A dropping funnel for on transfusion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20181024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |