CN202620388U - Infusion device capable of exhausting automatically for preventing blood return and medical infusion set thereof - Google Patents
Infusion device capable of exhausting automatically for preventing blood return and medical infusion set thereof Download PDFInfo
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- CN202620388U CN202620388U CN 201220277966 CN201220277966U CN202620388U CN 202620388 U CN202620388 U CN 202620388U CN 201220277966 CN201220277966 CN 201220277966 CN 201220277966 U CN201220277966 U CN 201220277966U CN 202620388 U CN202620388 U CN 202620388U
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- buoy
- infusion set
- staving
- blood backflow
- automatic exhausting
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Abstract
The utility model discloses an infusion device capable of exhausting automatically for preventing blood return. The infusion device comprises a barrel body, a barrel cover firmly covered on the barrel body, a water inlet pipe, a water outlet pipe, a vertical limiting frame with two ends opened, a buoy and an elastic membrane, wherein the water inlet pipe penetrates through the barrel cover to be communicated with the barrel body, and the water outlet pipe penetrates through the bottom of the barrel body to be communicated with the barrel body; at least one exhaust hole is arranged on the barrel cover, and a water-blocking hydrophobic filtering membrane is firmly covered on the exhaust hole; the vertical limiting frame is fixed on the barrel body, a gap is formed between the vertical limiting frame and the inner wall of the barrel body; and the buoy is right clamped in the vertical limiting frame and can only move vertically, the elastic membrane is firmly adhered at the bottom of the buoy, and after the buoy sinks, the elastic membrane is firmly adhered onto an upper end port of the water outlet pipe. The utility model further discloses a medical infusion set using the infusion device. The infusion device capable of exhausting automatically for preventing blood return and the medical infusion set are simple in manufacture process, reliable in performance, capable of exhausting automatically, capable of totally preventing blood return, convenient to use and capable of being manufactured and molded easily.
Description
Technical field
This utility model relates to a kind of infusion set, particularly a kind of automatic exhausting anti-blood backflow infusion set; This utility model also relates to a kind of medical Transfusion device that has the automatic exhausting anti-blood backflow infusion set, belongs to medical instruments field.
Background technology
At present; The transfusion device patent of many automatic solution stopping blood return preventions is disclosed both at home and abroad; Wherein the characteristic of most of patent is: a device that is similar to check valve is set (for example: CN202010326U CN101927041A CN2666453Y CN201414965Y CN201625277U CN201643112U CN201668789U CN201701561U CN20273398U CN202161624U CN2546037Y ZL94219401.2 CN201079597Y CN276374Y CN201978273U CN101579549 etc.) in black Fei Shi pipe bottom; After medicinal liquid has flowed when transfusion; This check valve of China ink Fei Shi pipe bottom sinks to blocking the outlet of black Fei Shi pipe automatically, makes downcomer go into liquid and stops to flow, and thinks the effect that can reach automatic solution stopping blood return prevention like this by mistake; In fact; " research of the position of an actuator and blood back during transfusion " literary composition of " the southern nursing magazine second volume first phase of nineteen ninety-five " was set forth, and behind this closed check valve downcomer, the liquid of below is in complete agravity state (promptly being similar to actuator pass death situation attitude in the article); Because the effect that effect that human vein is pressed and liquid have the phase counterdiffusion; Cause blood can flow backwards back in the transfusion device,, can cause thrombosis more easily like this so can't reach the effect of blood return prevention; If the blood return prevention effect that reaches truly must keep a spot of medicinal liquid can keep a transfusion state slowly when medicinal liquid has soon flowed; Based on this principle, Chinese patent CN20206763U designs below buoy and increases two logically, and making increases a spot of residual liquor after the solution stopping; Realize the medicinal liquid sluggish flow through the logical micropore of horizontal break-through two and the cordage of the inside then, keep transfusion state slowly, thereby reach the effect of blood return prevention; Though effect is fine; But complex manufacturing technology is added the existence of foreign body, and foreign body is forbidden at transfusion device, and this patent can not realize spendable product; Chinese patent CN201814935U has adopted filter membrane solution stopping principle in addition; Reach the effect of solution stopping relatively automatically, but owing to the capillary reason that is filter membrane, the solution stopping of transfusion device is had a strong impact on highly; The state of transfusion is complicated, therefore causes the poor effect of automatic solution stopping; This patent is provided with a drainage strip reaches a spot of debris blood return prevention through the front end of the method introducing scalp acupuncture of syphon drainage effect simultaneously; The design ratio of this drainage strip is easier to; Processing technology is difficult with molding, and manufacturing cost is relatively expensive, is difficult to into scale; The also difficult product that becomes real practicality of this patented product.
The utility model content
First purpose of this utility model is to provide a kind of automatic exhausting anti-blood backflow infusion set.
Second purpose of this utility model is to provide a kind of medical Transfusion device that has the automatic exhausting anti-blood backflow infusion set.
First purpose of this utility model is achieved through following technical scheme:
A kind of automatic exhausting anti-blood backflow infusion set of this utility model, it comprises staving, tight bung, water inlet pipe, outlet pipe, the vertical position-limited rack of both ends open, buoy, the flexible sheet that covers in staving upper end all around; Said water inlet pipe passes bung and is communicated with staving, and the bottom that said outlet pipe passes staving is communicated with staving; Have at least one steam vent on the said bung, closely be coated with the hydrophobicity filter membrane that blocks water on the steam vent; Said vertical position-limited rack is fixed on the staving, and and the staving inwall between form the gap; Said buoy is placed in the vertical position-limited rack, and flexible sheet closely sticks on the buoy bottom.
For avoiding medicinal liquid directly drips to influences buoy on the buoy up-down, the bottom lock of said water inlet pipe, its side is stretched out at least one and is communicated in water inlet pipe and staving skirt, and the distal-most end of skirt upright projection exceeds the periphery of buoy.
Be easy to overcome negative pressure for ease of flexible sheet when once beating many bottle liquid medicines, said outlet pipe port establishes one a little more than horizontal palisade of port or netted convexity.
For guaranteeing to have certain clearance between flexible sheet and the convexity, the surface of said convexity (10) is the frosted shape.
For making this apparatus structure more compact attractive in appearance, the bottom of said buoy has the groove that matches with flexible sheet shape size, and flexible sheet is fixedly mounted in this groove.
For guaranteeing buoy at same axis top offset, the inner chamber matched in clearance of said buoy and vertical position-limited rack.
Said vertical position-limited rack is enclosed by at least two ribs and is configured to, and said rib uniform distribution also is fixed on around the medial wall of staving.
For improving the crushing resistance of deflated efficient, increase filter membrane, the said hydrophobicity filter membrane thickness that blocks water is the height from the bung bottom surface to its outlet upper limb smaller or equal to water inlet pipe.
The described hydrophobicity filter membrane that blocks water is close on the bung lower surface, and closely covers steam vent.
Second purpose of this utility model is achieved through following technical scheme:
A kind of medical Transfusion device; It comprises bottle plug puncture unit together, dropping funnel, flow regulator, the intravenous needle that is communicated with by infusion tube; It also comprises foregoing automatic exhausting anti-blood backflow infusion set, and described automatic exhausting anti-blood backflow infusion set is installed on arbitrary position of the eventually last solution stopping height when being higher than transfusion of vertical height between bottle plug puncture unit and the intravenous needle through infusion tube.
The automatic exhausting anti-blood backflow infusion set and the medical Transfusion device thereof of this utility model; Their operation principle is: after medicinal liquid gets into staving through the water inlet pipe on the bung; Because buoy also is pressed on the water inlet of outlet pipe; The pipeline of outlet pipe is in closed condition, and the exhaust passage of the steam vent on the bung is in the state of opening simultaneously; After medicinal liquid flows into this staving, make the intravital air of bucket under medicinal liquid flows the effect of pushing, discharge through the hydrophobicity filter membrane that blocks water, steam vent; The hydrophobic interaction of hydrophobicity filter membrane owing to block water blocks water behind the hydrophobicity filter membrane when medicinal liquid covers full wafer, and medicinal liquid can't outwards flow out through steam vent, and this moment, medicinal liquid was full of staving; Simultaneously when medicinal liquid covers buoy part height; The buoyancy that medicinal liquid produces makes buoy in vertical position-limited rack, float, this moment outlet pipe pipeline in opened condition, medicinal liquid flows into next passage of the medical Transfusion device of being made up of this device; Until the intravenous needle needle point, can begin normal infusion; When transfusion soon finished, after the medicinal liquid of water inlet pipe top had flowed, buoy can descend along with the decline of liquid level; When the gravity of buoy during; buoy is fallen the outlet pipe water inlet, owing between the flexible sheet of the water inlet of outlet pipe and buoy bottom small slit is arranged, cause a small amount of medicinal liquid by the buoy slowly to flow into; keeping transfusion state slowly, thereby in the regular hour, reaching the effect of blood return prevention from this slit greater than buoyancy; After intravital all medicinal liquids of bucket have flowed; buoy avales automatically and, the negative pressure pulling force that the medicinal liquid of this device below produces stretches the flexible sheet of buoy bottom, until blocking the water inlet that water outlet connects; make all medicinal liquid complete agravities below this device, so reaches the effect of automatic solution stopping; When changing the bottle transfusion; After medicinal liquid flows into this device staving; Because the passage of the steam vent of bung is unimpeded; Add palisade or netted convexity to the buoyancy of the last thrust of buoy bottom flexible sheet and buoy greater than the negative pressure pulling force that medicinal liquid produced below this device after, buoy can work on according to above-mentioned principle again.
The automatic exhausting anti-blood backflow infusion set and the medical Transfusion device thereof of this utility model, compact conformation is reasonable, and is aesthetic in appearance, and processing technology is simple, and is easy to use, dependable performance, automatic vent can prevent blood back fully.The automatic exhausting anti-blood backflow infusion set of this utility model is applicable in any medical Transfusion device.
Description of drawings
Fig. 1 is the structural representation of this device embodiment 1;
Fig. 2 is the structural representation of this device embodiment 2;
The section explosive view of Fig. 3 Fig. 2;
Fig. 4 is the three-dimensional explosive view of embodiment 2;
Fig. 5 is one of user mode figure of this device;
Fig. 6 be this device user mode figure two.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described, but this utility model is not caused any qualification.
As shown in Figure 1, a kind of automatic exhausting anti-blood backflow infusion set of this utility model, it comprises staving 1, tight bung 2, water inlet pipe 3, outlet pipe 4, the vertical position-limited rack 5 of both ends open, buoy 6, the flexible sheet 7 that covers in staving 1 upper end all around; Said water inlet pipe 3 passes bung 2 and is communicated with staving 1, and the bottom that said outlet pipe 4 passes staving 1 is communicated with staving 1; Have at least one steam vent 8 on the said bung 2, the hydrophobicity filter membrane 9 that blocks water is close in said bung 2 bottom surfaces, and this hydrophobicity filter membrane 9 that blocks water closely covers steam vent 8; Be coated with the hydrophobicity filter membrane 9 that blocks water on the steam vent 8; Said vertical position-limited rack 5 is fixed on the staving 1, and and staving 1 inwall between form the gap; Said buoy 6 is placed in the vertical position-limited rack 5, can only in vertical position-limited rack 5, move up and down, and flexible sheet 7 closely sticks on buoy 6 bottoms; For guaranteeing buoy 6 at same axis top offset, the inner chamber matched in clearance of said buoy 6 and vertical position-limited rack 5; For avoiding medicinal liquid directly drips to influences buoy 6 on the buoy 6 up-down, the bottom lock of said water inlet pipe 3, its side is stretched out at least one and is communicated in water inlet pipe 3 and staving 1 skirt 11, and the distal-most end of skirt 11 upright projections exceeds the periphery of buoy 6.
Embodiment 2
Like Fig. 2,3, structure shown in 4; Be two of the embodiment of this utility model; It and embodiment 1 difference are, are easy to overcome negative pressure for ease of flexible sheet 7 when once failing many bottle liquid medicines, and said outlet pipe 4 port establish one a little more than the horizontal palisade of port or netted protruding 10; Said protruding 10 surfaces are the frosted shape, and one-body molded with outlet pipe 4; For making this apparatus structure more compact attractive in appearance, the bottom of said buoy 6 has the groove that matches with flexible sheet 7 shape sizes, and flexible sheet 7 is fixedly mounted in this groove; Said vertical position-limited rack 5 is enclosed by four ribs and is configured to, and said rib uniform distribution also is fixed on around the medial wall of staving 1; For improving the crushing resistance of deflated efficient, increase filter membrane 9, said hydrophobicity filter membrane 9 thickness that block water equal the height of water inlet pipe 3 from bung 2 bottom surfaces to its outlet upper limb.
Embodiment 3
Structure as shown in Figure 5 is the medical Transfusion device of this utility model; It comprises bottle plug puncture unit 12, dropping funnel 13, flow regulator 14, the intravenous needle 15 that is serially connected by infusion tube 16 connections; It also comprises the 2 described automatic exhausting anti-blood backflow infusion sets like embodiment, and described automatic exhausting anti-blood backflow infusion set is serially connected between the dropping funnel 13 and flow regulator 14 of medical Transfusion device through infusion tube 16.
Structure as shown in Figure 6 is the medical Transfusion device of this utility model; It comprises bottle plug puncture unit 12, dropping funnel 13, flow regulator 14, the intravenous needle 15 that is serially connected by infusion tube 16 connections; It also comprises the 1 described automatic exhausting anti-blood backflow infusion set like embodiment, and described automatic exhausting anti-blood backflow infusion set is serially connected between bottle plug puncture unit 12 and the dropping funnel 13 through infusion tube 16.
The device of this utility model is not limited to above embodiment, so long as the scheme of mentioning in this description and claims all can be implemented.To one skilled in the art, do not breaking away under the design prerequisite of this utility model, can also make some simple deduction or replace, all should be regarded as the protection domain of this utility model.
Claims (10)
1. automatic exhausting anti-blood backflow infusion set is characterized in that: it comprises staving (1), tight bung (2), water inlet pipe (3), outlet pipe (4), the vertical position-limited rack (5) of both ends open, buoy (6), the flexible sheet (7) that covers in staving (1) upper end all around; Said water inlet pipe (3) passes bung (2) and is communicated with staving (1), and the bottom that said outlet pipe passes staving (1) is communicated with staving (1); Have at least one steam vent (8) on the said bung (2), closely be coated with the hydrophobicity filter membrane (9) that blocks water on the steam vent (8); Said vertical position-limited rack (5) is fixed on the staving, and and the staving inwall between form the gap; Said buoy (6) is placed in the vertical position-limited rack (5), and flexible sheet (7) closely sticks on buoy (6) bottom.
2. a kind of automatic exhausting anti-blood backflow infusion set according to claim 1; It is characterized in that: the bottom lock of said water inlet pipe (3); Its side is stretched out at least one and is communicated in water inlet pipe and staving skirt (11), and the distal-most end of skirt (11) upright projection exceeds the periphery of buoy (6).
3. a kind of automatic exhausting anti-blood backflow infusion set according to claim 1 and 2 is characterized in that: said outlet pipe (4) port establishes one a little more than horizontal palisade of port or netted convexity (10).
4. a kind of automatic exhausting anti-blood backflow infusion set according to claim 3 is characterized in that: the surface of said convexity (10) is the frosted shape.
5. a kind of automatic exhausting anti-blood backflow infusion set according to claim 4 is characterized in that: the bottom of said buoy (6) has the groove that matches with flexible sheet shape size, and flexible sheet (7) is fixedly mounted in this groove.
6. a kind of automatic exhausting anti-blood backflow infusion set according to claim 5 is characterized in that: the inner chamber matched in clearance of said buoy (6) and vertical position-limited rack (5).
7. a kind of automatic exhausting anti-blood backflow infusion set according to claim 6 is characterized in that: said vertical position-limited rack (5) is enclosed by at least two ribs and is configured to, and said rib uniform distribution also is fixed on around the medial wall of staving (1).
8. a kind of automatic exhausting anti-blood backflow infusion set according to claim 2 is characterized in that: said hydrophobicity filter membrane (9) thickness that blocks water is the height from the bung bottom surface to water inlet pipe outlet upper limb smaller or equal to water inlet pipe (3).
9. a kind of automatic exhausting anti-blood backflow infusion set according to claim 8 is characterized in that: the described hydrophobicity filter membrane (9) that blocks water is close on bung (2) lower surface, and closely covers steam vent (8).
10. medical Transfusion device; It comprises bottle plug puncture unit (12), dropping funnel (13), flow regulator (14), the intravenous needle (15) that is serially connected by infusion tube (16) connection; It is characterized in that: it also comprises like the described automatic exhausting anti-blood backflow infusion set of claim 1～9, when described automatic exhausting anti-blood backflow infusion set is communicated with serial connection and is installed on that vertical height is higher than transfusion between bottle plug puncture unit (12) and the intravenous needle (15) through infusion tube (16) on eventually last solution stopping arbitrary position highly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277966 CN202620388U (en) | 2012-06-06 | 2012-06-06 | Infusion device capable of exhausting automatically for preventing blood return and medical infusion set thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277966 CN202620388U (en) | 2012-06-06 | 2012-06-06 | Infusion device capable of exhausting automatically for preventing blood return and medical infusion set thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202620388U true CN202620388U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220277966 Expired - Fee Related CN202620388U (en) | 2012-06-06 | 2012-06-06 | Infusion device capable of exhausting automatically for preventing blood return and medical infusion set thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202620388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698345A (en) * | 2012-06-06 | 2012-10-03 | 陈贤华 | Automatic-exhaust anti-blood-return infusion device and medical infuser thereof |
| CN103394149A (en) * | 2013-05-16 | 2013-11-20 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway |
-
2012
- 2012-06-06 CN CN 201220277966 patent/CN202620388U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698345A (en) * | 2012-06-06 | 2012-10-03 | 陈贤华 | Automatic-exhaust anti-blood-return infusion device and medical infuser thereof |
| CN102698345B (en) * | 2012-06-06 | 2015-09-02 | 浙江康康医疗器械有限公司 | A kind of automatic exhausting anti-blood backflow infusion set and medical Transfusion device thereof |
| CN103394149A (en) * | 2013-05-16 | 2013-11-20 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway |
| CN103394149B (en) * | 2013-05-16 | 2015-02-11 | 何前国 | Infusion apparatus capable of preventing blood from flowing back through sustained release of micropore passageway and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140606 |