CN205626609U

CN205626609U - Automatic liquid -stopping infusion apparatus

Info

Publication number: CN205626609U
Application number: CN201620012617.XU
Authority: CN
Inventors: 陈海燕
Original assignee: Deshipu Technology Development Wenzhou Co Ltd
Current assignee: Deshipu Technology Development Wenzhou Co Ltd
Priority date: 2016-01-06
Filing date: 2016-01-06
Publication date: 2016-10-12
Anticipated expiration: 2026-01-06

Abstract

The utility model discloses an automatic liquid -stopping infusion apparatus, wherein, include: a housing, the stock solution chamber that the casing has the upper part of the body that connects gradually together and the lower part of the body and is enclosed by the upper part of the body and the lower part of the body, the body during the upper part of the body middle part has one, the well body holds at the stock solution intracavity, the stopper, the stopper can be kept out on the well body, the stopper has an anchor ring, the minimum curvature radius of anchor ring is 0.25mm~0.36mm, the seal, the lower extreme at the stopper is connected to the seal, the seal has annular ectosome, the annular ectosome is kept out with the lower part of the body concave arc facial features of the lower part of the body, the minimum curvature radius of lower part of the body concave arc face is 0.35mm~0.46mm. The utility model discloses simple structure, sealed reliable can effectively avoid the bubble to get into the transfer line, can effectively prevent back blood simultaneously when the infusion finishes.

Description

A kind of automatic liquid-stopping transfusion apparatus

Technical field

This utility model relates to technical field of medical instruments, is specifically related to a kind of automatic liquid-stopping defeated Liquid 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 medicinal liquid to behind dropping funnel about 1/2 to 2/3 place, slowly open stream Amount actuator, 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 tube for transfusion and then additionally to release necessarily The medicinal liquid of amount goes to get rid of bubble, the most both brought inconvenience to medical personnel, and also result in medicinal liquid Waste, find the most in time such as patient at the end of transfusion simultaneously, tube for transfusion 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 venoclysis needle, Described dropping funnel is provided with the blocking device declined and blocked by flexible pipe along with the medicinal 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 emotion 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 medicinal 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 medicinal 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 tube for transfusion, simultaneously at the end of transfusion Can the automatic liquid-stopping transfusion apparatus of the most anti-return blood.

Utility model content

This utility model is for the problems referred to above, it is provided that a kind of simple in construction, seal reliable, energy Be prevented effectively from bubble and enter tube for transfusion, simultaneously at the end of transfusion can the most anti-return blood from Dynamic only liquid transfusion device.

The technical scheme in the invention for solving the above technical problem is:

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.

The utility model has the advantages that simple in construction, have multi-layer sealed, thus seal reliable, Bubble can be prevented effectively from and enter tube for transfusion, simultaneously at the end of transfusion, stopper and sealing physical ability Enough decline together along with liquid, play liquid stream complete before effectively seal tube for transfusion, it is to avoid bubble Enter tube for transfusion, can the most anti-return blood.

In addition to objects, features and advantages described above, this utility model also has it Its objects, features and advantages.Below with reference to figure, this utility model is made the most in detail Thin explanation.

Accompanying drawing explanation

Constitute the part of this specification, be used for being further appreciated by accompanying drawing of the present utility model and show Go out preferred embodiment of the present utility model, and be used for illustrating that this practicality is new together with description The principle of type.In the accompanying drawings:

Fig. 1 is main sectional view of the present utility model；

Fig. 2 is partial sectional view of the present utility model；

Fig. 3 is the partial sectional view of upper body of the present utility model；

Fig. 4 is the structural representation of stopper of the present utility model；

Fig. 5 is lower body of the present utility model and seal combinative structure schematic diagram；

Fig. 6 is the partial sectional view of lower body of the present utility model；And

Fig. 7 is the structural representation of seal of the present utility model.

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, embodiment of the present utility model is described in detail, but this reality Implement by the novel multitude of different ways that can be defined by the claims and cover.

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 preferred embodiment of the present utility model, be not limited to this practicality Novel, for a person skilled in the art, this utility model can have various change and Change.All within spirit of the present utility model and principle, any amendment of being made, equivalent Replacement, improvement etc., within should be included in protection domain of the present utility model.

Claims

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.