CN105561448A - Liquid stopper - Google Patents
Liquid stopper Download PDFInfo
- Publication number
- CN105561448A CN105561448A CN201610005891.9A CN201610005891A CN105561448A CN 105561448 A CN105561448 A CN 105561448A CN 201610005891 A CN201610005891 A CN 201610005891A CN 105561448 A CN105561448 A CN 105561448A
- Authority
- CN
- China
- Prior art keywords
- cambered surface
- bowl
- float
- sealing
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
Abstract
The invention discloses a liquid stopper. The liquid stopper comprises a housing, a limiting ring and a piston, wherein the housing is provided with a lower body and a hollow liquid storage tank arranged in the lower body, as well as a runner arranged at the lower part of the lower body; the limiting ring is located in the liquid storage tank, can float up and down in the liquid storage tank and is provided with an upper hole, an outer wall ring and a plurality of gas-filled chambers, the outer wall ring can be propped against the inner wall of the liquid storage tank, and the gas-filled chambers are filled with nitrogen; the piston is located in the liquid storage tank, can move up and down in the liquid storage tank, and is provided with a piston inclined plane, the piston inclined plane can be propped against an upper hole inclined plane of the upper hole, a floater is arranged at the upper part of the piston, and a seal plug is arranged at the lower part of the piston and can be propped against the side surface of the runner. The liquid stopper is simple in structure, can realize repeated sealing and improve the sealing reliability of liquid conveying pipelines and further improves the safety.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of liquid-stopping device.
Background technology
Transfusion device be a kind of be mainly used in venous transfusion through aseptic process, the common disposable medical treatment consumptive materials of setting up passage between vein and medicinal liquid.Generally connected to form by intravenous needle, helmet, infusion tube, liquid medicine filter, flow regulator, a kettle, bottle plug puncture unit, air inlet pipe air filter, but disposable transfusion device is in transfusion end or when more renewing infusion bottle or transfusion bag, if nursing staff does not note, air will be made to pass through to wear plug pin and to enter patient's intravenous through infusion tube with medicinal liquid, potential safety hazard is brought to patient, easily cause the fear of patient, also easily cause doctor-patient dispute.
Chinese patent CN201220351992.9 discloses a kind of automatic liquid-stopping transfusion apparatus, it comprises wearing of connecting in turn and fills in pin, dropping funnel, tube for transfusion, the flow regulator be arranged on tube for transfusion, filter, transfusion needle and automatic liquid-stopping assembly, and automatic liquid-stopping assembly is set to be communicated with dropping funnel and tube for transfusion respectively up and down; Wherein, automatic liquid-stopping assembly comprise both ends open valve seat, be arranged at locating part in valve seat and relocatable spool, valve seat comprises sealing bulge loop, and spool can abut with the upper surface of sealing bulge loop, and spool can move up and down at locating part and sealing between bulge loop.Automatic liquid-stopping transfusion apparatus of the present utility model, carry out autocontrol valve core by utilizing the buoyancy of medicinal liquid to contact or closed state with sealing bulge loop, thus reach the object of the folding condition automatically controlling liquid outlet, energy Automatic-closing transfusion system passage at the end of exchange infusion bottle (bag) or transfusion nearly, greatly reduce the potential safety hazard of patient in infusion process, also mitigate the pressure of nursing staff simultaneously, decrease doctor-patient dispute.
Chinese patent CN201210088609.X discloses a kind of disposable automatic liquid-stopping transfusion apparatus and preparation method thereof, transfusion device comprises a release mechanism, described release mechanism includes a housing and is arranged in a buoyancy aid of this housing, described housing comprises at least one medicine liquid outlet portion, in described housing, lower end is link, this link has the through hole for liquid medicine flow, this link is raised in the medicine liquid outlet portion of described housing, a concave shaped portion is provided with below described buoyancy aid, sealing cap is provided with in described concave shaped portion, described sealing cap comprises crown and ring cap body, one end of ring cap body is closed through crown, the other end is opening, the opening direction of ring cap body is contrary with the indent direction of concave shaped portion, the diameter of opening part is greater than the diameter of link.The object of the invention is to adopt and repeatedly seal, when exchanging infusion bottle and at the end of transfusion nearly, the self-closed of infusion pipeline can be guaranteed, on the basis really preventing air from entering in patient body, improve the reliability of infusion pipeline sealing, improve safety further.
Though above-mentioned patent can well suppress bubble to enter tube for transfusion, but for some special state, or bubble can be caused to enter, as housing be reversed time, air will float and enter tube for transfusion, with this simultaneously, at some in particular cases, when disengaging is caused in transfusion device end, inner medicinal liquid can continue outflow and cause waste.
Therefore be badly in need of a kind of structure simple, seal reliable novel liquid-stopping device.
Summary of the invention
The present invention is directed to the problems referred to above, the liquid-stopping device that a kind of structure is simple, can repeatedly seal is provided, the reliability of infusion pipeline sealing can be improved, improve safety further.
The present invention's adopted technical scheme that solves the problem is:
A kind of liquid-stopping device, wherein, comprising: housing, and described housing has a lower body and the reservoir be arranged in hollow in lower body and the runner being arranged on lower body bottom; Spacing ring, described spacing ring is positioned at reservoir, and can fluctuate in reservoir, and described spacing ring has upper hole, outer wall ring and several inflatable chambers, and described outer wall ring can be inconsistent with the inwall of reservoir, accommodates nitrogen in described inflatable chamber; Piston, described piston is positioned at reservoir, and can move up and down in reservoir, described piston has piston inclined-plane, described piston inclined-plane can be inconsistent with the upper hole deviation face in upper hole, the top of described piston is provided with float, and the bottom of described piston is provided with sealing-plug, and described sealing-plug can be inconsistent with the side of described runner.
Said structure is known, the contact internal walls of outer wall ring and reservoir, makes the inwall tight seal of spacing ring and reservoir, accommodates nitrogen in inflatable chamber, it is steady when spacing ring is fallen, and not by the impact of housing state, the inwall reliable contacts of outer wall ring and reservoir can be made, play the effect of sealing, piston inclined-plane contacts with the upper hole deviation face in upper hole, play the effect of sealing, the side of sealing-plug and described runner is inconsistent, makes sealing more reliable.
Further, the side of described runner has the first cambered surface and the second cambered surface that are connected successively, described sealing-plug has bowl, the surface of described lower bowl has lower bowl first cambered surface and lower bowl second cambered surface that are connected successively, described first cambered surface and lower bowl first cambered surface inconsistent, described second cambered surface and lower bowl second cambered surface inconsistent.
Said structure is known, and the cambered surface of runner contacts with the cambered surface of lower bowl, makes sealing reliable further.
Further, described spacing ring also has flange, the lower counterbore surrounded by flange and through hole, described flange is arranged on the lower end of outer wall ring, described flange can be kept out on inwall, described through hole and upper hole and lower counterbore connect, described through hole can hold piston inclined-plane, and described lower counterbore can hold sealing-plug.
Further, described sealing-plug also has connecting portion, upper bowl and annular seal space, and described connecting portion ringwise, and tilts upward extension, and described upper bowl is connected between connecting portion and lower bowl, described annular seal space connecting portion, between bowl and lower bowl.
Said structure makes sealing-plug lighter, easily floats, when liquid stream is complete, can decline fast with liquid when liquid is full of housing.
Further, described upper bowls has upper bowl first cambered surface, upper bowl second cambered surface, upper bowl the 3rd cambered surface that are connected successively, and described upper bowl first cambered surface is connected with lower bowl first cambered surface, and described upper bowl the 3rd cambered surface is connected with connecting portion.
Said structure makes sealing-plug lighter.
Further, described sealing-plug also has sealing edge, seal groove and buffer part, and described sealing edge is connected in lower bowl second cambered surface, and described seal groove is positioned at the outside of sealing edge, and described buffer locations is in lower bowl second cambered surface and sealing edge junction.
Said structure makes sealing-plug and runner seal reliably, and prevents sealing-plug from rocking and float.
Further, the radius of curvature of described seal groove is 0.10mm ~ 0.20mm.
Further, the radius of curvature of described seal groove is 0.15mm.
Said structure makes sealing edge have certain elasticity, make sealing edge can with runner side tight seal.
Further, described float hollow is spherical in shape, and described float has float cavity, float edge and float opening, and described float edge is to float extension, and described float opening is positioned at the bottom of float, and is positioned at the inner side of float edge.
Said structure plays the effect of balance, makes above-mentioned each sealing contact surface energy reliable contacts.
Further, described float opening and float cavity connect, the front end semicircular in shape of described float edge.
Advantage of the present invention comprises:
1. in the present invention, spacing ring coordinates the lower body inwall of certain taper, and under the state that syringe needle departs from vein, medicinal liquid flow sharply strengthens, and can accomplish the effect that decline hermetic barrier medicinal liquid is carried timely;
2. the float in the present invention on piston is subject to the buoyancy of medicinal liquid, piston and sealing-plug is moved to the middle and upper part of reservoir, and when medicinal liquid has fallen, float and piston and sealing-plug can decline simultaneously fast, and do not swing when playing decline;
3. in the present invention when liquid-stopping device is reversed, medicinal liquid flow to top, float is floated by sealing-plug closing pipe line, avoids air to enter pipeline.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
Forming the part of this description, showing the preferred embodiments of the present invention for understanding accompanying drawing of the present invention further, and be used for principle of the present invention is described together with description.In the accompanying drawings:
Fig. 1 is complete section structural representation of the present invention;
Fig. 2 is the first partial cutaway structural representation of the present invention;
Fig. 3 is spacing ring structural representation of the present invention;
Fig. 4 is the second partial cutaway structural representation of the present invention; And
Fig. 5 is the sectional view of sealing-plug of the present invention.
Wherein, be labeled as in figure:
10 is housing, 11 is upper cover, 12 is lower body, 13 is reservoir, 14 is inwall, 15 is lower nozzle, 16 is base, 161 is arc on base, 17 is runner, 171 is the first cambered surface, 172 is the second cambered surface, 20 floats, 21 is float cavity, 22 is float edge, 23 is float opening, 30 is piston, 31 is upper piston rod, 32 is piston edge, 33 is piston inclined-plane, 34 is lower piston rod, 40 is spacing ring, 41 is upper hole, 42 is upper hole deviation face, 43 is through hole, 44 is lower counterbore, 45 is outer wall ring, 46 is flange, 50 is sealing-plug, 51 is connecting portion, 52 is sealed groove, 53 is upper bowl, 531 is upper bowl first cambered surface, 532 is upper bowl second cambered surface, 533 is upper bowl the 3rd cambered surface, 54 is lower bowl, 541 is lower bowl first cambered surface, 542 is lower bowl second cambered surface, 55 is annular seal space, 56 is sealing edge, 57 is seal groove, 58 is buffer part.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Embodiment 1
Referring to figs. 1 to Fig. 5, a kind of liquid-stopping device as shown in Figure 1, comprise housing 10, described housing 10 comprises upper cover 11, described upper cover 11 bottom is provided with lower body 12, described lower body 12 comprises base 16, described lower body 12 is provided with the reservoir 13 by being with the inwall 14 of gradient to be formed, and described base 16 comprises arc 161 on a base, is provided with runner 17 in the middle part of described base 16, described runner 17 is made up of the first cambered surface 171 and the second cambered surface 172, is provided with lower nozzle 15 in the middle part of described runner 17.
Referring to figs. 1 to Fig. 3, a kind of liquid-stopping device as shown in Figure 1 to Figure 3, be provided with a spacing ring 40 in described lower body 12, described spacing ring 40 top is provided with outer wall ring 45, and described outer wall ring 45 bottom is provided with flange 46, described outer wall ring 45 is provided with hole 41, be provided with hole deviation face 42 outside described upper hole 41, be provided with through hole 43 below described upper hole 41, in described flange 46, be provided with lower counterbore 44, described lower counterbore 44 is connected through with through hole 43, and described outer wall ring 45 and flange 46 outer wall are conically.
With reference to figure 1, Fig. 4, a kind of liquid-stopping device as Figure 1 and Figure 4, described spacing ring 40 comprises a piston 30, described piston 30 comprises a piston edge 32, described piston edge 32 is provided with upper piston rod 31, be provided with piston inclined-plane 33 below described piston edge 32, described piston inclined-plane 33 and skewed slot 42 are coordinated by inclined-plane and seal and folding, are provided with a lower piston rod 34 below described piston inclined-plane 33; Described upper piston rod 31 top is provided with a float 20, and described float 20 comprises a float cavity 21, and float edge 22, has float opening 23 below described float edge 22.
With reference to figure 1, Fig. 4 and Fig. 5, a kind of liquid-stopping device as shown in Fig. 1, Fig. 4 and Fig. 5, described lower piston rod 34 end is provided with a sealing-plug 50, described sealing-plug 50 comprises the upper bowl 53 be made up of upper bowl first cambered surface 531, upper bowl second cambered surface 532 and upper bowl the 3rd cambered surface 533, be provided with a junction 51 in the middle part of described upper bowl 53 to be connected with lower piston rod 34, described upper bowl 53 and connecting portion 51 form sealed groove 52; Described sealing-plug also comprises lower bowl 54, described lower bowl 54 is made up of lower bowl first cambered surface 541 and lower bowl second cambered surface 542, described upper bowl 53 and lower bowl 54 form an annular seal space 55, described lower bowl 54 end also comprises a sealing edge 56, be provided with a buffer part 58 in described sealing edge 56, outside described sealing edge 56, be arranged with seal groove 57.
Embodiment 2
Referring to figs. 1 to Fig. 5, a kind of liquid-stopping device as shown in Figure 1, wherein, this liquid-stopping device comprises housing 10, spacing ring 40 and piston 30, described housing 10 has a lower body 12, upper cover 11, base 16, reservoir 13, runner 17 and lower nozzle 15, upper cover 11 is arranged on the top of lower body 12, base 16 is fixed on the bottom of lower body 12, reservoir 13 is in hollow, it is inner that it is positioned at lower body 12, runner 17 is arranged in base 16, as shown in Figure 2, lower nozzle 15 is arranged in base 16, and connect with runner 17, base 16 is also provided with arc 161 on base, described spacing ring 40 is positioned at reservoir 13, and can fluctuate in reservoir 13, described piston 30 is positioned at reservoir 13, and can move up and down in reservoir 13, the top of described piston 30 is provided with float 20, the bottom of described piston 30 is provided with sealing-plug 50.
As shown in Figures 2 and 3, described spacing ring 40 has upper hole 41, outer wall ring 45, several inflatable chambers, flange 46, the lower counterbore 44 surrounded by flange 46 and through hole 43, described outer wall ring 45 can be inconsistent with the inwall 14 of reservoir 13, nitrogen is accommodated in described inflatable chamber, accommodating nitrogen in inflatable chamber makes spacing ring 40 steady when falling, and swing few, guarantee flange 46 and inwall 14 tight seal, described flange 46 is arranged on the lower end of outer wall ring 45, described flange 46 can be kept out on inwall 14, described through hole 43 connects with upper hole 41 and lower counterbore 44, described through hole 43 can hold piston inclined-plane 33, described lower counterbore 44 can hold sealing-plug 50.
As shown in Figure 4, described piston 30 has piston inclined-plane 33 and piston edge 32, the top of described piston 30 is provided with upper piston rod 31, float 20 is connected on upper piston rod 31, the bottom of described piston 30 is provided with lower piston rod 34, sealing-plug 50 is connected on lower piston rod 34, described float 20 hollow is spherical in shape, described float 20 has float cavity 21, float edge 22 and float opening 23, the inwall of float cavity 21 is connected on upper piston rod 31, described float edge 22 is to float 20 extension, described float opening 23 is positioned at the bottom of float 20, and be positioned at the inner side of float edge 22, described float opening 23 connects with float cavity 21, the front end semicircular in shape of described float edge 22, described piston inclined-plane 33 can be inconsistent with the upper hole deviation face 42 in upper hole 41, owing to accommodating nitrogen in inflatable chamber, thus piston inclined-plane 33 and upper hole deviation face 42 seal reliably, described sealing-plug 50 can be inconsistent with the side of described runner 17.
As shown in Figure 1, Figure 2 with shown in Fig. 5, preferably, the side of described runner 17 has the first cambered surface 171 and the second cambered surface 172 be connected successively, described sealing-plug 50 has bowl 54, the surface of described lower bowl 54 has lower bowl first cambered surface 541 and lower bowl second cambered surface 542 that are connected successively, described first cambered surface 171 is inconsistent with lower bowl first cambered surface 541, described second cambered surface 172 is inconsistent with lower bowl second cambered surface 542, multiple cambered surface of runner 17 contacts with multiple cambered surfaces of lower bowl, makes repeatedly to seal more reliable.
Described sealing-plug 50 also has sealed groove 52, connecting portion 51, upper bowl 53 and annular seal space 55, sealed groove 52 is positioned at the top of sealing-plug 50, when liquid falls, liquid can be full of in sealed groove 52, when sealing-plug 50 falls, liquid in sealed groove 52 is under the effect of deadweight, sealing-plug 50 can be accelerated fall, guarantee sealing-plug 50 and runner 17 positiver sealing, liquid gravity plays the effect pressing down sealing-plug 50 simultaneously, make multiple cambered surface sealings of multiple cambered surface of lower bowl and runner 17 reliable further, described connecting portion 51 ringwise, and tilt upward extension, described upper bowl 53 is connected between connecting portion 51 and lower bowl 54, described annular seal space 55 is positioned at connecting portion 51, between upper bowl 53 and lower bowl 54, such structure does not swing when sealing-plug 50 is fallen, ensure that multiple cambered surface of lower bowl and multiple cambered surfaces of runner 17 seal reliable further.
Described upper bowl 53 has upper bowl first cambered surface 531, upper bowl second cambered surface 532, upper bowl the 3rd cambered surface 533, sealing edge 56, seal groove 57 and the buffer part 58 that are connected successively, described upper bowl first cambered surface 531 is connected with lower bowl first cambered surface 541, described upper bowl the 3rd cambered surface 533 is connected with connecting portion 51, described sealing-plug 50 also has, described sealing edge 56 is connected in lower bowl second cambered surface 542, described seal groove 57 is positioned at the outside of sealing edge 56, and described buffer part 58 is positioned at lower bowl second cambered surface 542 and sealing edge 56 junction.
Preferably, the radius of curvature of described seal groove 57 is 0.10mm ~ 0.20mm, makes sealing edge 56 have certain elasticity, makes sealing edge 56 more reliable with the side seal of runner 17.
Preferably, the radius of curvature of described seal groove 57 is 0.15mm.Make the side seal best results of sealing edge 56 and runner 17.
From the above, the present invention adopts repeatedly hermetically-sealed construction, when exchanging infusion bottle and at the end of transfusion nearly, the self-closed of tube for transfusion housing 10 can be guaranteed, prevent air from entering in patient body, improve the reliability of infusion pipeline sealing, improve safety further, the integrative-structure of float 20, piston 30 and sealing-plug 50, makes sealing more reliable.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a liquid-stopping device, is characterized in that, comprising:
Housing (10), described housing (10) has a lower body (12) and the reservoir (13) that is arranged in hollow in lower body (12) and the runner (17) being arranged on lower body (12) bottom;
Spacing ring (40), described spacing ring (40) is positioned at reservoir (13), and can fluctuate in reservoir (13), described spacing ring (40) has upper hole (41), outer wall ring (45) and several inflatable chambers, described outer wall ring (45) can be inconsistent with the inwall of reservoir (13) (14), accommodates nitrogen in described inflatable chamber;
Piston (30), described piston (30) is positioned at reservoir (13), and can move up and down in reservoir (13), described piston (30) has piston inclined-plane (33), described piston inclined-plane (33) can be inconsistent with the upper hole deviation face (42) of upper hole (41), the top of described piston (30) is provided with float (20), the bottom of described piston (30) is provided with sealing-plug (50), and described sealing-plug (50) can be inconsistent with the side of described runner (17).
2. liquid-stopping device according to claim 1, it is characterized in that, the side of described runner (17) has the first cambered surface (171) and the second cambered surface (172) that are connected successively, described sealing-plug (50) has bowl (54), the surface of described lower bowl (54) has lower bowl first cambered surface (541) and lower bowl second cambered surface (542) that are connected successively, described first cambered surface (171) is inconsistent with lower bowl first cambered surface (541), and described second cambered surface (172) is inconsistent with lower bowl second cambered surface (542).
3. liquid-stopping device according to claim 1, it is characterized in that, described spacing ring (40) also has flange (46), the lower counterbore (44) surrounded by flange (46) and through hole (43), described flange (46) is arranged on the lower end of outer wall ring (45), described flange (46) can be kept out on inwall (14), described through hole (43) connects with upper hole (41) and lower counterbore (44), described through hole (43) can hold piston inclined-plane (33), and described lower counterbore (44) can hold sealing-plug (50).
4. liquid-stopping device according to claim 2, it is characterized in that, described sealing-plug (50) also has connecting portion (51), upper bowl (53) and annular seal space (55), described connecting portion (51) ringwise, and tilt upward extension, described upper bowl (53) is connected between connecting portion (51) and lower bowl (54), and described annular seal space (55) is positioned at connecting portion (51), between upper bowl (53) and lower bowl (54).
5. liquid-stopping device according to claim 4, it is characterized in that, described upper bowl (53) has upper bowl first cambered surface (531), upper bowl second cambered surface (532), the upper bowl the 3rd cambered surface (533) that are connected successively, described upper bowl first cambered surface (531) is connected with lower bowl first cambered surface (541), and described upper bowl the 3rd cambered surface (533) is connected with connecting portion (51).
6. liquid-stopping device according to claim 5, it is characterized in that, described sealing-plug (50) also has sealing edge (56), seal groove (57) and buffer part (58), described sealing edge (56) is connected on lower bowl second cambered surface (542), described seal groove (57) is positioned at the outside of sealing edge (56), and described buffer part (58) is positioned at lower bowl second cambered surface (542) and sealing edge (56) junction.
7. liquid-stopping device according to claim 6, is characterized in that, the radius of curvature of described seal groove (57) is 0.10mm ~ 0.20mm.
8. liquid-stopping device according to claim 7, is characterized in that, the radius of curvature of described seal groove (57) is 0.15mm.
9. liquid-stopping device according to any one of claim 1 to 8, it is characterized in that, described float (20) hollow is spherical in shape, described float (20) has float cavity (21), float edge (22) and float opening (23), described float edge (22) is to float (20) extension, described float opening (23) is positioned at the bottom of float (20), and is positioned at the inner side of float edge (22).
10. liquid-stopping device according to claim 9, is characterized in that, described float opening (23) and float cavity (21) connect, the front end semicircular in shape of described float edge (22).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005891.9A CN105561448A (en) | 2016-01-06 | 2016-01-06 | Liquid stopper |
| CN201610234870.4A CN105727393B (en) | 2016-01-06 | 2016-04-14 | A kind of liquid-stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005891.9A CN105561448A (en) | 2016-01-06 | 2016-01-06 | Liquid stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105561448A true CN105561448A (en) | 2016-05-11 |
Family
ID=55872431
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005891.9A Pending CN105561448A (en) | 2016-01-06 | 2016-01-06 | Liquid stopper |
| CN201610234870.4A Expired - Fee Related CN105727393B (en) | 2016-01-06 | 2016-04-14 | A kind of liquid-stopping device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610234870.4A Expired - Fee Related CN105727393B (en) | 2016-01-06 | 2016-04-14 | A kind of liquid-stopping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105561448A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466698A (en) * | 2018-12-28 | 2019-03-15 | 马根昌 | From draining safety ship |
| CN109506032A (en) * | 2019-01-09 | 2019-03-22 | 任丘市瑞华星水暖器材有限公司 | A kind of floating ball of exhaust valve |
| CN109562019A (en) * | 2016-07-11 | 2019-04-02 | 诺里瓦尔·卡埃塔诺 | For adjusting, reconstructing to injectable product and/or the valve with switching mechanism of diluted bag |
| CN112426588A (en) * | 2020-11-30 | 2021-03-02 | 李连洪 | Multifunctional medical gas-liquid pot |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107596492A (en) * | 2017-09-29 | 2018-01-19 | 陈芳 | A kind of transfusion device back-flow preventer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125164A (en) * | 2005-11-02 | 2007-05-24 | Advanex Inc | Valve mechanism and infusion set |
| CN101905052B (en) * | 2009-06-08 | 2012-07-04 | 汪贤宗 | Drip infusion fixer and safety infusion water-sealing device |
| CN102188765A (en) * | 2010-03-04 | 2011-09-21 | 廖首猜 | Infusion and transfusion fixed safety device |
| US8328770B2 (en) * | 2011-01-07 | 2012-12-11 | Hsien-Tsung Wang | Disposable blood transfusion device |
| CN102813983B (en) * | 2012-08-09 | 2014-05-07 | 四川普瑞斯生物科技有限公司 | Disposable self-exhausted bidirectional automatic-closing-type liquid-stop anti-blood-return transfusion device |
| CN104815366A (en) * | 2015-05-29 | 2015-08-05 | 江苏康宝医疗器械有限公司 | Disposable automatic liquid-stopping infusion apparatus |
| CN205626634U (en) * | 2016-01-06 | 2016-10-12 | 德施普科技发展温州有限公司 | End liquid ware |
-
2016
- 2016-01-06 CN CN201610005891.9A patent/CN105561448A/en active Pending
- 2016-04-14 CN CN201610234870.4A patent/CN105727393B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109562019A (en) * | 2016-07-11 | 2019-04-02 | 诺里瓦尔·卡埃塔诺 | For adjusting, reconstructing to injectable product and/or the valve with switching mechanism of diluted bag |
| CN109466698A (en) * | 2018-12-28 | 2019-03-15 | 马根昌 | From draining safety ship |
| CN109506032A (en) * | 2019-01-09 | 2019-03-22 | 任丘市瑞华星水暖器材有限公司 | A kind of floating ball of exhaust valve |
| CN112426588A (en) * | 2020-11-30 | 2021-03-02 | 李连洪 | Multifunctional medical gas-liquid pot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105727393B (en) | 2019-06-28 |
| CN105727393A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105561448A (en) | Liquid stopper | |
| US2784733A (en) | Check valve for parenteral solutions | |
| CN201668789U (en) | Automatic liquid-stop infusion set with safety mechanism | |
| US2844147A (en) | Segregation chamber for transfusion sets | |
| CN102772842B (en) | Safe and automatic hydraulic control opening and closing valve and infusion apparatus with safe and automatic hydraulic control opening and closing valve | |
| CN205626634U (en) | End liquid ware | |
| CN201643243U (en) | Safety valve and liquid-blood transfusion device provided with same | |
| CN202426960U (en) | Blood-return-preventing automatic fluid-stopping infusion device | |
| CN203001545U (en) | Improved disposable safe infusion apparatus | |
| CN103800962B (en) | Improved disposable safe transfusion system | |
| CN202682478U (en) | Safe automatic hydraulic-control starting-stopping valve and infusion apparatus having the same | |
| CN208552721U (en) | Automatic liquid-stopping dropping funnel | |
| CN204563141U (en) | Safety type precision filter infusion set | |
| CN105854112B (en) | A kind of automatic liquid-stopping transfusion apparatus | |
| CN201832284U (en) | Safety valve and infusion and blood transfusion device provided with same | |
| CN204864329U (en) | Automatic exhaust ends liquid and prevents back drop of blood fill | |
| CN204655655U (en) | Safety type infusion apparatus dropping funnel | |
| CN2616222Y (en) | Disposable transfusion system with magnetic stop ball | |
| CN205626609U (en) | Automatic liquid -stopping infusion apparatus | |
| CN105126191A (en) | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber | |
| CN204319273U (en) | From moulding soft transfusion bottle | |
| CN203123168U (en) | Automatic flow-stop infusion device | |
| CN204563125U (en) | Single use safe transfusion system | |
| CN210159009U (en) | Positive pressure needle-free infusion joint | |
| CN211434471U (en) | Infusion apparatus capable of preventing air from entering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication |