CN202920732U - Dripping device applied to infusion and blood transfusion device - Google Patents
Dripping device applied to infusion and blood transfusion device Download PDFInfo
- Publication number
- CN202920732U CN202920732U CN 201220398317 CN201220398317U CN202920732U CN 202920732 U CN202920732 U CN 202920732U CN 201220398317 CN201220398317 CN 201220398317 CN 201220398317 U CN201220398317 U CN 201220398317U CN 202920732 U CN202920732 U CN 202920732U
- Authority
- CN
- China
- Prior art keywords
- ebonite accessory
- flexible glue
- accessory
- dropping funnel
- glue base
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a dripping device applied to an infusion and blood transfusion device. The dripping device applied to the infusion and blood transfusion device comprises a drip chamber, a connecting tube and a safety valve. The connecting tube is arranged between the drip chamber and a lower infusion tube. The safety valve comprises a polystyrene accessory and a polyethylene base. The outer lateral wall of the polyethylene base is matched with the inner lateral wall of the polystyrene accessory to seal an open end of the polystyrene accessory. The axial length of the polyethylene base is smaller than the axial length of the polystyrene accessory. The outer lateral wall of the polystyrene accessory and the inner lateral wall of the drip chamber form a fluid discharge channel. The length of the portion of the connecting tube extending into the drip chamber is slightly larger than the distance from a sealing end of the polyethylene base to an opening end of the polystyrene accessory. The sealing end of the polyethylene base conducts sealing on the portion a tube mouth of the connecting tube extending to the inner of the drip chamber. The dripping device applied to the infusion and blood transfusion device solves the problem of the prior art that the safety valve is difficult to flow upward again after adsorbing to the bottom of the drip chamber, and a dripping device applied to the infusion and blood transfusion device easy to flow upward again is further provided .
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, specifically a kind of transfusion apparatus for fluid and blood transfusion apparatus.
Background technology
Transfusion device is mainly used in carrying medicinal liquid or blood to patient, and its structure mainly comprises contact pin, upper tubing, dropping funnel, lower tube for transfusion, by-pass cock and entry needle.When the transfusion device of employing said structure is infused to patient, need medical personnel to check at any time the transfusion situation, especially giving some old men or child transfusion, when the residue medicinal liquid is few, medical personnel can not leave usually, until patient's infusion-completed is extracted infusion needle.If liquid exhausts, but infusion needle also in human body, so can be due to the effect of negative pressure in tube for transfusion, the blood that causes the patient refluxes or air enters in the patient body by transfusion device to tube for transfusion, thereby the patient is damaged or even dead.
In order to solve the problems of the technologies described above, in prior art, patent documentation CN201200719Y discloses a kind of transfusion device universe point drip apparatus, comprise dropping funnel and be arranged at the interior relief valve of described dropping funnel, the relief valve that is arranged in described dropping funnel comprises ebonite accessory and flexible glue base, described flexible glue base is connected to the bottom of ebonite accessory, the ebonite accessory comprises the ebonite fitment body and is arranged on the ebonite accessory connecting portion of ebonite fitment body lower end, be provided with the flexible glue base connecting portion that is connected with ebonite accessory connecting portion on the flexible glue base.Above-mentioned transfusion system safety valve is arranged in transfusion device, after being totally lost liquid, passes through transfusion device the effect of air pressure and liquid suction, relief valve can effectively seal transfusion device, thereby occur blood backflow in the time of effectively preventing from using transfusion device to infuse or cause the appearance of the dangerous situations such as air embolism, thrombosis to human body, reduce to greatest extent the generation of malpractice.
But the liquid outlet of the dropping funnel in above-mentioned patent documentation in transfusion device is a through hole that is formed in the dropping funnel bottom, it is namely the lower liquid mouth that is shaped on the plane that seamlessly transits in the dropping funnel bottom, lower liquid mouth is adsorbed on the flexible glue base by suction the bottom of dropping funnel, the whole face of flexible glue base all contacts applying fully with lower liquid mouth and the bottom surface thereof of transfusion device, and suction is larger.When being absent from the scene, the medical worker maybe needs to be totally lost one bottle of liquid, relief valve has been adsorbed on when continuing defeated another bottle liquid medicine behind dropping funnel bottom again, because the volume of flexible glue base own and quality are very little, this moment is when adding new medicinal liquid again, and the flexible glue base is by being adsorbed on the dropping funnel bottom and being difficult to floating tightly.
The utility model content
For this reason, technical problem to be solved in the utility model is that in the transfusion apparatus of fluid and blood transfusion apparatus of the prior art, relief valve is difficult to floating again after being adsorbed on the dropping funnel bottom, and then a kind of easily transfusion apparatus that is used for fluid and blood transfusion apparatus of floating again is provided.
For solving the problems of the technologies described above, this utility model provides a kind of transfusion apparatus for fluid and blood transfusion apparatus, comprises dropping funnel, also comprises
Connection tube is arranged between described dropping funnel and lower tube for transfusion, and a described connection tube part is extended in the described dropping funnel, a part is connected to described dropping funnel extension and with described lower tube for transfusion; With
Relief valve is arranged in described dropping funnel, and the centrage of described relief valve and the centrage of described dropping funnel coincide, and it comprises
The ebonite accessory, described ebonite accessory is the hollow cylinder with an opening and a blind end, described opening is towards described connection tube; With
The flexible glue base, described flexible glue base is the hollow cylinder with an opening and a blind end, the described ebonite accessory of the medial wall fitted seal opening of the lateral wall of described flexible glue base and described ebonite accessory, the axial length of described flexible glue chassis outer side wall is less than the axial length of described ebonite accessory medial wall;
Be formed with lower liquid passage between the lateral wall of described ebonite accessory and the medial wall of described dropping funnel;
The length of the part that described connection tube extends in the described dropping funnel is a bit larger tham described flexible glue base blind end to the distance of described ebonite accessory opening, and the mouth of pipe of the part that described flexible glue base blind end extends in the described dropping funnel connection tube seals.
It is inner that described flexible glue base blind end stretches into described ebonite accessory, and described flexible glue base blind end and ebonite accessory opening have certain distance.
The opening of described flexible glue base is placed towards described ebonite accessory opening.
Be provided with stopping means near described ebonite accessory blind end one side in described ebonite accessory, for the position of restriction flexible glue base in described ebonite accessory.
Described stopping means is the projection that extends to described ebonite accessory opening from described ebonite accessory blind end.
Described flexible glue base blind end is a thin film.
Be provided with passage on the sidewall of described ebonite accessory or described ebonite accessory blind end.
Be provided with the fluid reservoir of opening on described ebonite accessory blind end, the opening of described fluid reservoir is towards the inlet of described dropping funnel.
The diameter of the opening of described fluid reservoir is 3mm, and the degree of depth is 3mm.
Described fluid reservoir and described ebonite accessory are one-body molded.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) at the transfusion apparatus for fluid and blood transfusion apparatus described in the utility model, comprise dropping funnel, also comprise connection tube, be arranged between described dropping funnel and lower tube for transfusion, a described connection tube part is extended in the described dropping funnel, a part is connected to described dropping funnel extension and with described lower tube for transfusion, and relief valve, being arranged in described dropping funnel, the centrage of described relief valve and the centrage of described dropping funnel coincide, and it comprises the ebonite accessory, and described ebonite accessory is the hollow cylinder of an end opening, an end sealing, with the flexible glue base, described flexible glue base is the hollow cylinder of an end opening, an end sealing, the described ebonite accessory of the sidewall fitted seal opening of the sidewall of described flexible glue base and described ebonite accessory, and described flexible glue base is towards described connection tube, the length of the part that described connection tube extends in the described dropping funnel is a bit larger tham described flexible glue base blind end to the distance of described ebonite accessory opening, the mouth of pipe of the part that described flexible glue base blind end extends in the described dropping funnel connection tube seals, because the flexible glue base can be out of shape, distortion by the flexible glue base is enclosed in the flexible glue base opening part of ebonite accessory, namely extrude portion of air in the ebonite accessory by distortion, inner air and extraneous air reach balance, when medicinal liquid drips off, the mouth of pipe contact of flexible glue base blind end sealing connection tube, except with part that the mouth of pipe contacts, other parts of flexible glue base are not contact with dropping funnel, therefore contact area is identical with the area of the mouth of pipe, real contact area is little, and the axial length of described flexible glue chassis outer side wall is less than the axial length of described ebonite accessory medial wall, portion of air can be enclosed in the cavity of ebonite accessory, when needs add medicinal liquid again, because of its contact area little, the buoyancy of relief valve itself is large, be easy to just can float under the effect of buoyancy, thereby realize the purpose that in transfusion apparatus described in the utility model, relief valve namely seals and can easily again float the dropping funnel liquid outlet.
(2) in transfusion apparatus described in the utility model, it is inner that described flexible glue base blind end stretches into described ebonite accessory, described flexible glue base does not take volume in addition, the relief valve volume is little, and when medicinal liquid adds liquid level also not have the mouth of pipe of described connection tube, relief valve is the described connection tube of sealing under the effect of negative pressure still, after medicinal liquid continues to add and did not have the mouth of pipe of connection tube, form one between the flexible glue base of described relief valve and the horizontal plane of medicinal liquid and have air chamber, this air chamber upwards holds up the negative pressure that relief valve overcomes lower tube for transfusion, easier of described relief valve floating.
(3) in transfusion apparatus described in the utility model, the opening of described flexible glue base is placed towards described ebonite accessory opening, the flexible glue base also has certain wall thickness, therefore, connection tube swingable space in described flexible glue base is less, coordinate further and stablize, rock the closure that also can not affect relief valve and connection tube even have.
(4) in transfusion apparatus described in the utility model, be provided with stopping means near described ebonite accessory blind end one side in described ebonite accessory, for the position of restriction flexible glue base in described ebonite accessory, installation site to the flexible glue base positions, guarantee that the flexible glue base does not have locational change in use for some time yet, guarantee that further connection tube coordinates with the flexible glue base, preferred described stopping means is the projection that extends to described ebonite accessory opening from the blind end of described ebonite accessory, makes simple.
(5) in transfusion apparatus described in the utility model, be provided with passage on the sidewall of described ebonite accessory or blind end, make the air pressure of flexible glue base inside and outside both sides consistent, be more prone to install.
(6) in transfusion apparatus described in the utility model, be provided with the fluid reservoir of opening on described ebonite accessory blind end, the opening of described fluid reservoir is towards the inlet of described dropping funnel, the medicinal liquid that enters dropping funnel from the inlet of dropping funnel drops in fluid reservoir, utilize the gravity of the medicinal liquid increase relief valve in fluid reservoir, guarantee the sealing to the mouth of pipe of connection tube.
(7) in transfusion apparatus described in the utility model, the opening of described fluid reservoir is that diameter is the circular port of 3mm, and its degree of depth is 3mm, guarantees that namely the gravity of the medicinal liquid increase of fluid reservoir can be not excessive, can normally float in the time of making again the relief valve floating.
Description of drawings
For content of the present utility model is more likely to be clearly understood, the below is described in further detail this utility model, wherein according to specific embodiment of the utility model also by reference to the accompanying drawings
Fig. 1 is that the opening of this utility model flexible glue base is towards the structural representation of the described transfusion apparatus of ebonite accessory opening;
Fig. 2 is the STRUCTURE DECOMPOSITION figure of relief valve in transfusion apparatus described in the utility model;
Fig. 3 is that in this utility model, stopping means is the structural representation of the described transfusion apparatus of projection;
Fig. 4 is that the opening of this utility model flexible glue base is towards the structural representation of the described transfusion apparatus of the blind end of ebonite accessory;
Fig. 5 is that stopping means described in the utility model is the structural representation of the described transfusion apparatus of flange.
In figure, Reference numeral is expressed as: 10-dropping funnel, 20-ebonite accessory, 21-ebonite accessory blind end, 22-ebonite accessory opening, the 23-stopping means, 24-passage, 25-fluid reservoir, 30-flexible glue base, 31-flexible glue base blind end, 32-flexible glue base openings end, 40-connection tube, tube for transfusion under 50-.
The specific embodiment
Embodiment 1
Figure 1 shows that a kind of transfusion apparatus for fluid and blood transfusion apparatus, comprise dropping funnel 10, also comprise connection tube 40 and relief valve, wherein, connection tube 40 is arranged between described dropping funnel 10 and lower tube for transfusion 50, and described connection tube 40 parts are connected to described dropping funnel 10 extensions and with described lower tube for transfusion 50 to the interior extension of described dropping funnel 10, a part; Relief valve is arranged in described dropping funnel 10, the centrage of the centrage of described relief valve and described dropping funnel 10 coincides, it comprises ebonite accessory 20 and flexible glue base 30, as shown in Figure 2, described ebonite accessory 20 is for having the hollow cylinder of an opening 22 and a blind end 21, and described ebonite accessory opening 22 is towards described connection tube 40; Described flexible glue base 30 is for having the hollow cylinder of an opening 32 and a blind end 31, the described ebonite accessory of the medial wall fitted seal opening 22 of the lateral wall of described flexible glue base 30 and described ebonite accessory 20, the axial length of described flexible glue base 30 lateral walls is less than the axial length of described ebonite accessory 20 medial walls; Be formed with lower liquid passage between the medial wall of the lateral wall of described ebonite accessory 20 and described dropping funnel 10, the medicinal liquid of being convenient in the liquid pipe flows into dropping funnel 10 bottoms by lower liquid passage; Described connection tube 40 is a bit larger tham described flexible glue base blind end 31 to the distance of described ebonite accessory opening 22 to the length of the part of described dropping funnel 10 interior extensions, and 31 pairs of connection tubes 40 of described flexible glue base blind end seal to the mouth of pipe of the part of described dropping funnel 10 interior extensions; It is a thin film that described flexible glue base blind end 31 is set in the present embodiment, described flexible glue base blind end 31 is set in the present embodiment stretches into described ebonite accessory 20 inside, described flexible glue base blind end 31 has certain distance with ebonite accessory opening 22, and described flexible glue base openings end 32 is towards described ebonite accessory opening 22.
Further, the present embodiment is on the basis of above-described embodiment, described ebonite accessory 20 is interior is provided with stopping means 23 near described ebonite accessory blind end 21 1 sides, for the position of restriction flexible glue base 30 in described ebonite accessory 20, namely be provided with stopping means 23 at the inner described flexible glue base blind end of described ebonite accessory 20 31 places, the projection of described stopping means 23 for extending to described ebonite accessory opening 22 from described ebonite accessory blind end 21 is set, as shown in Figure 3 in the present embodiment.
Further, the present embodiment is provided with passage 24 on described ebonite accessory blind end 21, as shown in Figure 3 on the basis of above-described embodiment.
Embodiment 2
Figure 4 shows that the transfusion apparatus that is used for fluid and blood transfusion apparatus described in the present embodiment, comprise dropping funnel 10, also comprise connection tube 40 and relief valve, wherein, connection tube 40 is arranged between described dropping funnel 10 and lower tube for transfusion 50, and described connection tube 40 parts are connected to described dropping funnel 10 extensions and with described lower tube for transfusion 50 to the interior extension of described dropping funnel 10, a part; Relief valve is arranged in described dropping funnel 10, the centrage of the centrage of described relief valve and described dropping funnel 10 coincides, it comprises ebonite accessory 20 and flexible glue base 30, and described ebonite accessory 20 is for having the hollow cylinder of an opening and a blind end, and described opening is towards described connection tube 40; Described flexible glue base 30 is for having the hollow cylinder of an opening and a blind end, the described ebonite accessory of the medial wall fitted seal opening 22 of the lateral wall of described flexible glue base 30 and described ebonite accessory 20, the axial length of described flexible glue base 30 lateral walls is less than the axial length of described ebonite accessory 20 medial walls; Be formed with lower liquid passage between the medial wall of the lateral wall of described ebonite accessory 20 and described dropping funnel 10, the medicinal liquid of being convenient in the liquid pipe flows into dropping funnel 10 bottoms by lower liquid passage; Described connection tube 40 is a bit larger tham described flexible glue base blind end 31 to the distance of described ebonite accessory opening 22 to the length of the part of described dropping funnel 10 interior extensions, and 31 pairs of connection tubes 40 of described flexible glue base blind end seal to the mouth of pipe of the part of described dropping funnel 10 interior extensions; Described flexible glue base openings end 32 is set in the present embodiment stretches into described ebonite accessory 20 inside, described flexible glue base blind end and ebonite accessory opening 22 have certain distance, and described flexible glue base openings end 32 is towards described ebonite accessory blind end 21.
Further, the present embodiment is on the basis of above-described embodiment, described ebonite accessory 20 is interior is provided with stopping means 23 near described ebonite accessory blind end 21 1 sides, for the position of restriction flexible glue base 30 in described ebonite accessory 20, namely be provided with stopping means 23 at the inner described flexible glue base openings end of described ebonite accessory 20 32 places, the flange of described stopping means 23 for radially extending from described ebonite accessory 20 sidewalls is set, as shown in Figure 4 in the present embodiment; Be provided with passage 24 on described ebonite accessory 20 sidewalls.
Further, the present embodiment is on the basis of above-described embodiment, be provided with the fluid reservoir 25 of opening on described ebonite accessory blind end 21, the opening of described fluid reservoir 25 is towards the inlet of described dropping funnel 10, as shown in Figure 5, described fluid reservoir 25 is set one-body molded with described ebonite accessory 20 in the present embodiment, the diameter that the opening of described fluid reservoir 25 is set in the present embodiment is 3mm, and the degree of depth is 3mm.
Sidewall described in the present embodiment is circumferential side wall.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of this utility model creation.
Claims (10)
1. a transfusion apparatus that is used for fluid and blood transfusion apparatus, comprise dropping funnel (10), it is characterized in that: also comprise
Connection tube (40) is arranged between described dropping funnel (10) and lower tube for transfusion (50), and described connection tube (a 40) part is connected to described dropping funnel (10) extension and with described lower tube for transfusion (50) to the interior extension of described dropping funnel (10), a part; With
Relief valve is arranged in described dropping funnel (10), and the centrage of the centrage of described relief valve and described dropping funnel (10) coincides, and it comprises
Ebonite accessory (20), described ebonite accessory (20) is for having the hollow cylinder of an opening (22) and a blind end (21), and described ebonite accessory opening (22) is towards described connection tube (40); With
Flexible glue base (30), described flexible glue base (30) is for having the hollow cylinder of an opening (32) and a blind end (31), the described ebonite accessory of the medial wall fitted seal opening (22) of the lateral wall of described flexible glue base (30) and described ebonite accessory (20), the axial length of described flexible glue base (30) lateral wall is less than the axial length of described ebonite accessory (20) medial wall;
Be formed with lower liquid passage between the medial wall of the lateral wall of described ebonite accessory (20) and described dropping funnel (10);
Described connection tube (40) is a bit larger tham described flexible glue base blind end (31) to the distance of described ebonite accessory opening (22) to the length of the interior part of extending of described dropping funnel (10), and described flexible glue base blind end (31) seals the mouth of pipe of connection tube (40) to the interior part of extending of described dropping funnel (10).
2. transfusion apparatus according to claim 1 is characterized in that: the blind end of described flexible glue base stretches into described ebonite accessory (20) inside, and described flexible glue base blind end (31) has certain distance with ebonite accessory opening (22).
3. transfusion apparatus according to claim 1 and 2, it is characterized in that: described flexible glue base openings end (32) is placed towards described ebonite accessory opening (22).
4. transfusion apparatus according to claim 1 and 2, it is characterized in that: be provided with stopping means (23) near described ebonite accessory blind end (21) one sides in described ebonite accessory (20), for the position of restriction flexible glue base (30) in described ebonite accessory (20).
5. transfusion apparatus according to claim 4, is characterized in that: the projection of described stopping means (23) for extending from described ebonite accessory blind end (21) to described ebonite accessory opening (22).
6. transfusion apparatus according to claim 5, it is characterized in that: described flexible glue base blind end (31) is a thin film.
7. according to claim 5 or 6 described transfusion apparatus, is characterized in that: be provided with passage (24) on the sidewall of described ebonite accessory (20) or described ebonite accessory blind end (21).
8. transfusion apparatus according to claim 7, it is characterized in that: be provided with the fluid reservoir (25) of opening on described ebonite accessory blind end (21), the opening of described fluid reservoir (25) is towards the inlet of described dropping funnel (10).
9. transfusion apparatus according to claim 8, it is characterized in that: the diameter of the opening of described fluid reservoir (25) is 3mm, the degree of depth is 3mm.
10. according to claim 8 or 9 described transfusion apparatus is characterized in that: described fluid reservoir (25) is one-body molded with described ebonite accessory (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398317 CN202920732U (en) | 2012-08-13 | 2012-08-13 | Dripping device applied to infusion and blood transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398317 CN202920732U (en) | 2012-08-13 | 2012-08-13 | Dripping device applied to infusion and blood transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202920732U true CN202920732U (en) | 2013-05-08 |
Family
ID=48210726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220398317 Expired - Lifetime CN202920732U (en) | 2012-08-13 | 2012-08-13 | Dripping device applied to infusion and blood transfusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202920732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007397A (en) * | 2012-08-13 | 2013-04-03 | 郑万章 | Drip device for transfusion and infusion sets |
-
2012
- 2012-08-13 CN CN 201220398317 patent/CN202920732U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007397A (en) * | 2012-08-13 | 2013-04-03 | 郑万章 | Drip device for transfusion and infusion sets |
| CN103007397B (en) * | 2012-08-13 | 2014-05-14 | 郑万章 | Drip device for transfusion and infusion sets |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015188576A1 (en) | Self-venting, anti-bubble, automatic fluid checking, precision filtration, infusion apparatus | |
| CN108478904B (en) | Exhaust part and guide pipe and injector comprising same | |
| CN103830795A (en) | Disposable automatic liquid stopping infusion set | |
| CN202179740U (en) | Disposable self-exhausting transfusion system | |
| CN202920732U (en) | Dripping device applied to infusion and blood transfusion device | |
| CN206214526U (en) | A kind of anti-blood back self-closed type transfusion device | |
| CN203591474U (en) | Sustainable medical negative pressure drainage device | |
| CN203842130U (en) | Automatic liquid-stop dripping bucket and infusion set capable of conducting infusion smoothly | |
| CN103007397B (en) | Drip device for transfusion and infusion sets | |
| CN204684284U (en) | A kind of negative pressure drainage water sealing bottle | |
| CN203345434U (en) | Multifunctional liquid medicine storage tank | |
| CN202777250U (en) | No-residue self-exhaust infusion apparatus drip cup assembly | |
| CN203090068U (en) | Drip chamber capable of automatically exhausting and stopping liquid and infusion set with drip chamber capable of automatically exhausting and stopping liquid | |
| CN203591483U (en) | Retention enema bag used for medicine dispensing | |
| CN203447590U (en) | Multifunctional transfusion device for soup filtering, automatic air exhausting, automatic soup stopping and blood backstreaming preventing | |
| CN204246500U (en) | A kind of three chamber automatic medicine-change PP infusion bottles | |
| CN203749945U (en) | Automatic liquid stop device for infusion apparatus | |
| CN203598292U (en) | Novel hemodialysis fluid packaging bag | |
| CN202191529U (en) | Self-exhaustion liquid-limited infusion apparatus capable of storing liquid | |
| CN205698686U (en) | A kind of transfusion device with only liquid function | |
| CN202920709U (en) | Safe dripping device applied to infusion device | |
| CN204563141U (en) | Safety type precision filter infusion set | |
| CN202920734U (en) | Check valve and transfusion drip device with the same | |
| CN202920735U (en) | Disposable infusion apparatus capable of stopping liquid automatically | |
| CN203577076U (en) | Self-exhausting liquid medicine filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20140514 |
|
| RGAV | Abandon patent right to avoid regrant |