CN105854112A - Auto-stop infusion set - Google Patents
Auto-stop infusion set Download PDFInfo
- Publication number
- CN105854112A CN105854112A CN201610231660.XA CN201610231660A CN105854112A CN 105854112 A CN105854112 A CN 105854112A CN 201610231660 A CN201610231660 A CN 201610231660A CN 105854112 A CN105854112 A CN 105854112A
- Authority
- CN
- China
- Prior art keywords
- ectosome
- curvature radius
- lower body
- middle body
- face
- 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
- 238000001802 infusion Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 210000002583 cell-derived microparticle Anatomy 0.000 claims description 38
- 239000008280 blood Substances 0.000 abstract description 11
- 210000004369 blood Anatomy 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000007667 floating Methods 0.000 description 9
- 239000003814 drug Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241001411320 Eriogonum inflatum Species 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- A61M5/36—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
-
- 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
- A61M2005/1401—Functional features
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses an auto-stop infusion set, comprising: a shell having an upper body and a lower body sequentially connected together as well as a liquid storage cavity enclosed by the upper body and the lower body, the middle of the upper body having a middle body, and the middle body being received in the liquid storage cavity; a piston that may be abutted to the middle body and has an annulus, minimum curvature radius of the annulus being 0.25-0.36 mm; a seal connected to the lower end of the piston and which has a circular outer body, the circular outer body being abutted to a concave arc face of the lower body, and minimum curvature radius of the concave arc face being 0.35-0.46 mm. The auto-stop infusion set is simple in structure and reliable in sealing, can effectively prevent bubbles from entering an infusion tube and can effectively prevent blood return upon closure of infusion.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of automatic liquid-stopping transfusion
Device.
Background technology
At present in medical industry, when having an intravenous drip to patient infusion, it generally has two kinds of methods:
One is to make dropper air within lower liquid outlet gets rid of dropping funnel up, is filled with dropping funnel in treating dropping funnel
Reappose after half and vertically avoid bubble to produce；Other method is to be closed by flow regulator
Close, pinch pressure dropping funnel and make it suck liquid to behind dropping funnel about 1/2 to 2/3 place, slowly open stream
Amount adjuster, it is possible to avoid bubble to produce.But both approaches is the most numerous
Trivial complexity, as the most improper in operation, cause bubble to enter woven hose and then additionally to release necessarily
The liquid of amount goes to get rid of bubble, the most both brought inconvenience to medical personnel, and also result in liquid
Waste, find the most in time such as patient at the end of transfusion simultaneously, woven hose blood back can be caused,
Patient is made to produce fear.
Chinese patent CN201320129476.6 discloses a kind of automatic liquid-stopping transfusion apparatus, bag
Include the needle for inserting bottle of the most through connection, dropping funnel, flexible pipe, liquid medicine filter and intravenous infusion needle,
Described dropping funnel is provided with the blocking device declined and blocked by flexible pipe along with the liquid page；This practicality
Novel advantage is: after transfusion terminates can automatic liquid-stopping, effectively delay blood back, subtract
The nursery work intensity of light medical worker and the lines of strain and fear mood of patient.
Chinese patent CN201210036854.6 disclose a kind of single use from spacing from
Only liquid transfusion device, including protective sleeve for bottle stopper puncture outfit, bottle plug puncture unit, air-filtering membrane,
Air lock, top hose, dropping funnel lid, latex cap, from stopping means, from only liquid device, on
Dropping funnel, lower dropping funnel, pressurization bead, bottom hose, flow regulator, liquid medicine filter and quiet
Arteries and veins transfusion needle, it is characterised in that: from stopping means by air lock, air-filtering membrane and dropping funnel
The exhaust passage composition covered, includes limit shaft sleeve and only liquid valve, only liquid valve from the most only liquid device
It is made up of floating head, floating axle and soft sucker, in only liquid device is placed in dropping funnel, limit shaft sleeve
Being embedded in lower dropping funnel inner chamber upper end oral area, floating axle is tight with floating head inner sleeve by limit shaft sleeve center
Coordinating, soft sucker top is embedded in depressed part at the bottom of floating axle, and spacing by limit shaft sleeve, floating head
Being connected by floating axle with soft sucker, the inner chamber at upper dropping funnel and lower dropping funnel moves up and down, its energy
Liquid level in fast automatic lower liquid, control dropping funnel after bottle plug puncture unit is inserted infusion solutions bottle stopper
Highly, air in dropping funnel is automatically got rid of；Without medicine in liquid, dropping funnel in medicine bottle in infusion process
When liquid is very few, only liquid valve energy self-closed pipeline, causes after preventing air entrance bottom hose interior
Blood back, had the most both decreased the waste of liquid, decreased again the workload of medical personnel, again
It is avoided that the medical tangle that malpractice causes.
Although above-mentioned two patent can avoid blood back at the end of transfusion while eliminating bubble
The generation of phenomenon, but the most complex, blood back can only be slowed down simultaneously, but can not be complete
The full generation preventing blood back phenomenon.
Therefore it is badly in need of one and can be prevented effectively from bubble entrance woven hose, simultaneously at the end of transfusion
Can the automatic liquid-stopping transfusion apparatus of the most anti-return blood.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that a kind of simple in construction, sealing reliably, can be effective
Bubble is avoided to enter woven hose, simultaneously can the auto-stopping of the most anti-return blood at the end of transfusion
Liquid transfusion device.
The present invention solves the problems referred to above and be the technical scheme is that
A kind of automatic liquid-stopping transfusion apparatus, wherein, including: housing, described housing has successively
The upper body linked together and lower body and the liquid storage cylinder surrounded by upper body and lower body, described on
Having body in the middle part of body, described middle body is contained in liquid storage cylinder；Stopper, described stopper can
Keeping out on middle body, described stopper has an anchor ring, and the minimum profile curvature radius of described anchor ring is
0.25mm～0.36mm；Seal, described seal is connected to the lower end of stopper, described
Seal has an annular ectosome, and the lower body cancave cambered surface of described annular ectosome and lower body is kept out mutually,
The minimum profile curvature radius of described lower body cancave cambered surface is 0.35mm～0.46mm.
Said structure is simple, and the setting of minimum profile curvature radius makes sealing effectiveness compare prior art
Good.
Further, the minimum profile curvature radius of described anchor ring is 0.30mm.
Further, the minimum profile curvature radius of described lower body cancave cambered surface is 0.40mm.
Knowable to above-mentioned, the optimal value of minimum profile curvature radius so that sealing effectiveness reaches optimal.
Further, described middle body has hole and middle body lower opening, institute on convex annular wall, middle body
Stating convex annular wall to contact with anchor ring, described convex annular wall extends to middle body lower opening, described
On middle body, hole is run through mutually with middle body lower opening, and on described middle body, hole is connected with liquid storage cylinder top,
Described middle body lower opening is connected with liquid storage cylinder bottom.
Further, one end of described lower body cancave cambered surface has and is connected in turn down
Body convex globoidal and lower body vertical plane, described annular ectosome has the ectosome the being connected in turn
Simultaneously, ectosome second and ectosome the 3rd, described ectosome first and lower body cancave cambered surface phase
Contact, described ectosome second contacts with lower body convex globoidal, described ectosome the 3rd and under
Body vertical plane contacts.
Further, the minimum profile curvature radius of described ectosome second be 0.15mm～
0.18mm。
Further, the minimum profile curvature radius of described ectosome second is 0.16mm.
Knowable to above-mentioned, the optimal value of minimum profile curvature radius so that sealing effectiveness reaches optimal.
It is an advantage of the invention that simple in construction, have multi-layer sealed, thus seal reliable, energy
Being prevented effectively from bubble and enter woven hose, simultaneously at the end of transfusion, stopper and seal can
Along with liquid declines together, play liquid stream complete before effectively seal woven hose, it is to avoid bubble enters
Enter woven hose, can the most anti-return blood.
In addition to objects, features and advantages described above, the present invention also has other
Objects, features and advantages.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
Constitute the part of this specification, show for the accompanying drawing being further appreciated by the present invention
The preferred embodiments of the present invention, and it is used for illustrating the principle of the present invention together with specification.?
In accompanying drawing:
Fig. 1 is the main sectional view of the present invention；
Fig. 2 is the partial sectional view of the present invention；
Fig. 3 is the partial sectional view of the upper body of the present invention；
Fig. 4 is the structural representation of the stopper of the present invention；
Fig. 5 is lower body and the seal combining structure schematic diagram of the present invention；
Fig. 6 is the partial sectional view of the lower body of the present invention；And
Fig. 7 is the structural representation of the seal of the present invention.
Wherein, figure is labeled as:
10 be housing, 11 be upper body, 12 be middle body, 121 be annular flange flange, 122 for ring
The convex wall of shape, 123 be hole on middle body, 124 be middle body lower opening, 13 be liquid storage cylinder, 14 be under
Body, 141 be lower body cancave cambered surface, 142 for lower body convex globoidal, 143 for lower body vertical plane, 20
Float, 30 be stopper, 31 for upper boom, 32 for lower beam, 33 for anchor ring, 34 for ring set,
40 be seal, 41 be v-shaped cavity, 42 be cannelure, 43 for accommodating chamber, 44 for ring
Shape ectosome, 441 be ectosome first, 442 for ectosome second, 443 for ectosome the 3rd,
45 be body in annular, 46 for loss of weight chamber.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can
Implement with the multitude of different ways being defined by the claims and covering.
Referring to figs. 1 to Fig. 7, a kind of automatic liquid-stopping transfusion apparatus as shown in Figure 1, wherein,
This automatic liquid-stopping transfusion apparatus includes housing 10, float 20, stopper 30, seal 40, floating
Son 20, stopper 30 and seal 40 are contained in housing 10, and described seal 40 is even
Being connected on the lower end of stopper 30, float 20 is connected to the upper end of stopper 30.
As shown in Figures 2 and 3, described housing 10 has the upper body being connected in turn
11 and lower body 14 and the liquid storage cylinder 13 that surrounded by upper body 11 and lower body 14, described upper body
Having body 12 in the middle part of in the of 11, described middle body 12 is contained in liquid storage cylinder 13, described in
Body 12 upper end is annular flange flange 121, and annular flange flange 121 has certain elasticity, described middle body
12 have hole 123 and middle body lower opening 124, described convex annular on convex annular wall 122, middle body
Wall 122 extends to middle body lower opening 124, hole 123 and middle body lower opening 124 phase on described middle body
Running through, on described middle body, hole 123 is connected with liquid storage cylinder 13 top, described middle body lower opening
124 are connected with liquid storage cylinder 13 bottom, as shown in Figure 2 and Figure 4, and described convex annular wall
122 can contact with anchor ring 33.
As shown in Figure 2 and Figure 4, described stopper 30 can be kept out on middle body 12, described plug
Son 30 has an anchor ring 33, the minimum profile curvature radius of described anchor ring 33 be 0.25mm～
0.36mm；Anchor ring 33 top of described stopper 30 has a ring set 34, upper boom 31 and under
Bar 32 is fixed on the two ends of stopper 30, and float 20 is installed on the top of described upper boom 31, floating
Son 20 moves up and down together with upper boom 31 and lower beam 32.
Preferably, the minimum profile curvature radius of described anchor ring 33 is 0.30mm.
As shown in figure 5 and figure 7, described seal 40 has annular ectosome 44, described ring
Lower body cancave cambered surface 141 phase of shape ectosome 44 and lower body 14 is kept out, described lower body cancave cambered surface 141
Minimum profile curvature radius be 0.35mm～0.46mm.
Preferably, the minimum profile curvature radius of described lower body cancave cambered surface 141 is 0.40mm.
As shown in Figure 5 and Figure 6, one end of described lower body cancave cambered surface 141 has and is sequentially connected with
Lower body convex globoidal 142 together and lower body vertical plane 143.
As it is shown in fig. 7, described annular ectosome 44 has the ectosome the being connected in turn
Simultaneously 441, ectosome the second face 442 and ectosome the 3rd face 443, described ectosome the first face 441
Contact with lower body cancave cambered surface 141, described ectosome the second face 442 and lower body convex globoidal 142
Contacting, described ectosome the 3rd face 443 contacts with lower body vertical plane 143, described seal
In 40, in annular, body 45 and annular ectosome 44 surround cannelure 42, accommodate chamber 43 and subtract
Weight chamber 46, wherein said cannelure 42 is positioned at the oblique upper accommodating chamber 43, loss of weight chamber 46
Being positioned at the obliquely downward accommodating chamber 43, in described annular, body 45 and seal 40 center constitute V
Shape chamber 41.
Preferably, the minimum profile curvature radius in described ectosome the second face 442 be 0.15mm～
0.18mm。
Preferably, the minimum profile curvature radius in described ectosome the second face 442 is 0.16mm.
From the foregoing, this automatic liquid-stopping transfusion apparatus simple in construction, Multi-layer sealing can be realized,
Air can be avoided to enter human body and blood back phenomenon.
These are only the preferred embodiments of the present invention, be not limited to the present invention, right
For those skilled in the art, the present invention can have various modifications and variations.All at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection scope of the present invention should being included in.
Claims (7)
1. an automatic liquid-stopping transfusion apparatus, it is characterised in that including:
Housing 10, described housing 10 have the upper body 11 being connected in turn and under
Body 14 and the liquid storage cylinder 13 surrounded by upper body 11 and lower body 14, described upper body 11
Middle part has body 12 in, and described middle body 12 is contained in liquid storage cylinder 13；
Stopper 30, described stopper 30 can be kept out on middle body 12, and described stopper 30 has
Having an anchor ring 33, the minimum profile curvature radius of described anchor ring 33 is 0.25mm～0.36mm；
Seal 40, described seal 40 is connected to the lower end of stopper 30, described close
Envelope body 40 has annular ectosome 44, and described annular ectosome 44 is recessed with the lower body of lower body 14
Cambered surface 141 phase is kept out, and the minimum profile curvature radius of described lower body cancave cambered surface 141 is
0.35mm～0.46mm.
Automatic liquid-stopping transfusion apparatus the most according to claim 1, it is characterised in that described anchor ring
The minimum profile curvature radius of 33 is 0.30mm.
Automatic liquid-stopping transfusion apparatus the most according to claim 2, it is characterised in that described lower body
The minimum profile curvature radius of cancave cambered surface 141 is 0.40mm.
Automatic liquid-stopping transfusion apparatus the most according to claim 1, it is characterised in that described middle body
12 have hole 123 and middle body lower opening 124, described annular on convex annular wall 122, middle body
Convex wall 122 can contact with anchor ring 33, and described convex annular wall 122 is to middle body lower opening 124
Extending, on described middle body, hole 123 is run through mutually with middle body lower opening 124, hole on described middle body
123 are connected with liquid storage cylinder 13 top, described middle body lower opening 124 and liquid storage cylinder 13 times
Portion is connected.
Automatic liquid-stopping transfusion apparatus the most according to claim 1, it is characterised in that described lower body
One end of cancave cambered surface 141 has the lower body convex globoidal 142 and lower body being connected in turn
Vertical plane 143, described annular ectosome 44 has the ectosome first being connected in turn
441, ectosome the second face 442 and ectosome the 3rd face 443, described ectosome the first face 441
Contact with lower body cancave cambered surface 141, described ectosome the second face 442 and lower body convex globoidal
142 contact, and described ectosome the 3rd face 443 contacts with lower body vertical plane 143.
Automatic liquid-stopping transfusion apparatus the most according to claim 5, it is characterised in that described ectosome
The minimum profile curvature radius in the second face 442 is 0.15mm～0.18mm.
Automatic liquid-stopping transfusion apparatus the most according to claim 6, it is characterised in that described ectosome
The minimum profile curvature radius in the second face 442 is 0.16mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008515.5A CN105521530A (en) | 2016-01-06 | 2016-01-06 | Infusion apparatus with automatic infusion-stopping function |
| CN2016100085155 | 2016-01-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105854112A true CN105854112A (en) | 2016-08-17 |
| CN105854112B CN105854112B (en) | 2019-04-26 |
Family
ID=55764268
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008515.5A Pending CN105521530A (en) | 2016-01-06 | 2016-01-06 | Infusion apparatus with automatic infusion-stopping function |
| CN201610231660.XA Expired - Fee Related CN105854112B (en) | 2016-01-06 | 2016-04-14 | A kind of automatic liquid-stopping transfusion apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008515.5A Pending CN105521530A (en) | 2016-01-06 | 2016-01-06 | Infusion apparatus with automatic infusion-stopping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105521530A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1836745A (en) * | 2006-04-21 | 2006-09-27 | 陈庆强 | Automatic balancing buoy type safe transfusion tube |
| WO2007052445A1 (en) * | 2005-11-02 | 2007-05-10 | Advanex Inc. | Valve unit and infusion set |
| CN104623766A (en) * | 2015-02-12 | 2015-05-20 | 武汉博硕聚才科技有限公司 | Manufacturing method of blood return prevention infusion apparatus capable of conducting slow release for long time and infusion apparatus |
| CN104689409A (en) * | 2015-03-04 | 2015-06-10 | 江西丽华鑫朗药业科技有限公司 | Multifunctional transfusion device capable of preventing bubbles and automatically stopping liquid |
| CN205626609U (en) * | 2016-01-06 | 2016-10-12 | 德施普科技发展温州有限公司 | Automatic liquid -stopping infusion apparatus |
-
2016
- 2016-01-06 CN CN201610008515.5A patent/CN105521530A/en active Pending
- 2016-04-14 CN CN201610231660.XA patent/CN105854112B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007052445A1 (en) * | 2005-11-02 | 2007-05-10 | Advanex Inc. | Valve unit and infusion set |
| CN1836745A (en) * | 2006-04-21 | 2006-09-27 | 陈庆强 | Automatic balancing buoy type safe transfusion tube |
| CN104623766A (en) * | 2015-02-12 | 2015-05-20 | 武汉博硕聚才科技有限公司 | Manufacturing method of blood return prevention infusion apparatus capable of conducting slow release for long time and infusion apparatus |
| CN104689409A (en) * | 2015-03-04 | 2015-06-10 | 江西丽华鑫朗药业科技有限公司 | Multifunctional transfusion device capable of preventing bubbles and automatically stopping liquid |
| CN205626609U (en) * | 2016-01-06 | 2016-10-12 | 德施普科技发展温州有限公司 | Automatic liquid -stopping infusion apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105521530A (en) | 2016-04-27 |
| CN105854112B (en) | 2019-04-26 |
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Granted publication date: 20190426 |