CN2822655Y

CN2822655Y - Infusion device with automatic flowing shutoff function

Info

Publication number: CN2822655Y
Application number: CN 200520035663
Authority: CN
Inventors: 董中新
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2006-10-04
Anticipated expiration: 2015-09-30

Abstract

The utility model relates to an infusion device with the function of automatic flowing shutoff, which comprises an infusion bottle, a dripping funnel, a flow controller, a filter and an infusion needle which are orderly connected. The utility model is characterized in that the utility model is also provided with an automatic flowing stopping device which comprises a floater which is arranged in the dripping funnel and can float on physic liquor, a floating magnet arranged in the floater and a control magnet arranged below the dripping funnel. When the infusion device with the function of automatic flowing shutoff of the utility model is used for infusion, family does not need to accompany patients to observe the infusion conditions or nurses don't need to frequently inspect and observe the infusion condition. When the physic liquor in the infusion bottle is run out, the utility model can automatically cut off a liquor passage so as to avoid the occurrence of safety accidents that a needle head is not pulled out in time to result in blood return or make air enter blood vessels, etc., therefore the utility model greatly reduces the danger of infusion as well as can not result in any damage to human bodies.

Description

The automatic flow-stop transfusion device

(1) technical field:

This utility model relates to therapeutic medical transfusion device, particularly can realize the transfusion device of automatic flow-stop after transfusion finishes.

(2) background technology:

Transfusion is a kind of the most common medical procedure, also is a slow time-consuming procedure simultaneously.The existing medical Transfusion device that generally uses is normally by the feed liquor pin, air inlet pipe, tube for transfusion, dropping funnel, flow controller, filter, transfusion needle is linked in sequence and forms, as patient when especially the child infuses, generally all need relative accompany or nurse often to make an inspection tour and observe the transfusion situation, when particularly transfusion closes to an end, can not leave a moment, because existing transfusion device can not cut off when medicinal liquid is about to drip to the greatest extent automatically, if in time do not transfer to syringe needle this moment, will cause blood back or make the gas intravasation, thereby the health of having influence on, seriously even the entail dangers to life security.In order to solve the above-mentioned defective of existing transfusion device, many inventors are through big quantity research, various novel transfusion devices have been invented, sum up and get up to be broadly divided into following two classes: a class is to have increased transfusion device electric, the photoelectric alarm device on it, alarm alarm when the medicine liquid droplet in the infusion unit titrimeter is most, but this type of transfusion device complex structure, cost height can't use under the condition of not having electricity; Another kind of for having increased the transfusion device of mechanical type alarm device, but the complex structure that this type of transfusion device has, complex operation, what have can't produce in enormous quantities, can't reach sanitary standard again during the production that has, the technology that also has is unreliable, can not play good alarm effect, and above-mentioned transfusion device all is only to adopt alarm prompting transfusion to close to an end, and can not realize the transfusion back automatic flow-stop that finishes.Application number is 200410055324.1, name is called " full application of brake close transfusion device ", with application number be 200410071728.X, the Chinese patent that name is called " brake monitor in the medical Transfusion device " discloses the use permanent magnet and has controlled transfusion device, make it be about to the device of defeated back automatic flow-stop at medicinal liquid, the structure of above-mentioned two patents all is to establish a float in dropping funnel, establish a Magnet in the float, and the lower end in dropping funnel, if rustless metal part, utilize the magnetic force between Magnet and rustless metal, drip off back float and rustless metal plate adhesive at medicinal liquid, thereby block infusion channel, realize closing automatically.But because foregoing invention is arranged at the rustless metal part in the dropping funnel, so the rustless metal is dipped in the medicinal liquid fully, because the stainless of metal is relative, when producing and storing and using transfusion device, causes secondary pollution easily like this; After float and rustless metal adhesive, can not open automatically in addition, must it be drawn back or squeeze and open, use very inconvenient with hands.

(3) utility model content:

This utility model will disclose safe and reliable, simple in structure, easy to use, can realize the transfusion device of automatic flow-stop after transfusion finishes.

This new type auto fluid stopping transfusion device comprises dropping funnel, also comprises an automatic flow-stop device, and this automatic flow-stop device comprises and is arranged at the set set controlling magnet of unsteady Magnet and dropping funnel below in the float that can float in the dropping funnel on the medicinal liquid, the float.Because the Magnet in the float has a fixed S, the N utmost point, controlling magnet also has a fixed S, the N utmost point, the principle of inhaling mutually according to Magnet homopolar-repulsion, heteropole, when the patient infuses, suppose when floating the Magnet S utmost point down, the N utmost point is up the time, only need down the S utmost point of controlling magnet, the N utmost point up, treat medicinal liquid in the dropping funnel reduce, when liquid level drops to certain altitude, the power that the buoyancy of float will be attracted each other less than float Magnet and controlling magnet, at this moment liquid outlet is sealed in the float bottom that will sink down into dropping funnel rapidly, realizes the automatic flow-stop of transfusion device.And if need open the liquid outlet of sealing, as long as with the N utmost point of controlling magnet down, the S utmost point up, this moment no matter buoyancy what because two S of float Magnet and controlling magnet repel extremely mutually, float promptly can be away from liquid outlet, float on the liquid level, the liquid outlet of sealing promptly is opened.Change the N of controlling magnet, the sensing of the S utmost point for convenience, controlling magnet can be that N, the S utmost point can overturn mutually, be fitted to dropping funnel below versatilely, for example can below dropping funnel, offer a blind hole, directly controlling magnet is inserted in the blind hole, controlling magnet can arbitrarily be overturn or plug as required, or make controlling magnet can in jack, do 180 the degree more than rotation; For the ease of grasping, also controlling magnet can be arranged in the switch controlling device, this switch controlling device can be the inserted link that an end is provided with handle, switch controlling device inserts in the blind hole with the outside form of handle, for the ease of confirming N, the S utmost point of the controlling magnet in the switch controlling device, also can be in the sign of the grip of switch controlling device mark opening and closing; When the unlatching of switch controlling device identifies up, the magnetic pole that the magnetic pole of controlling magnet is and the Magnet that floats repels each other, that is to say that being inserted into blind hole maybe will insert switch controlling device in the blind hole and turn to and open when identifying up, controlling magnet promptly produces repulsive force with unsteady Magnet, and liquid outlet is opened; And when switch controlling device close sign up, the magnetic pole of controlling magnet is the magnetic pole that attracts mutually with the Magnet that floats, that is to say switch controlling device to be inserted blind hole or the switch controlling device in the blind hole turn to and close when identifying up, controlling magnet promptly produces captivation with unsteady Magnet, float is inhaled down, closed liquid outlet.In order further to increase float to the sealing property of liquid outlet, the reliability that guarantees to end medicinal liquid, also can sealing device be set in the bottom of float, described sealing device can be the annular seal seam that is arranged on the end face of float bottom, and the cross section of described annular seal seam can be triangle or circular arc or other shape.Float can be the float of arbitrary structures, for example float can and be located at intermediary Magnet and form by loam cake, lower cover, method as available encapsulate (being quadric injection mould) is formed one with the three, the Magnet of being located in the float is wrapped in it fully, can avoid Magnet to contact like this causing getting rusty and because of adopting the bonding medicinal liquid that polluted of glue with medicinal liquid, both improve the safety of transfusion, and also made transfusion device reach the sanitary standard of regulation easily.And the axial centre of controlling magnet overlaps with the axial centre of dropping funnel as far as possible, make that like this magnetic force of controlling magnet and unsteady Magnet can be along the centrage transmission, allow float be in all the time on the position of center line of dropping funnel, when treating that simultaneously float sinks, just incomplete problem can be able to not appearred sealing in the liquid outlet complete closed.Can judge accurately and rapidly for the ease of medical personnel and can make float float on liquid level on the medicinal liquid, also a liquid level graduation mark can be set on the dropping funnel wall, as long as liquid level is higher than this graduation mark, the Magnet that floats just can not sink because of the captivation of controlling magnet, thereby guarantee before the medicinal liquid of infusion bottle does not drip off the carrying out smoothly of whole infusion process; Have only when the medicine liquid droplet in the infusion bottle is most, along with the liquid level in the dropping funnel descends, float also just and then sinks, along with captivation between the minimizing of distance between two Magnet, Magnet strengthens, when captivation during greater than buoyancy, float moment sinking, the sealing liquid outlet, this graduation mark can adopt method of printing or directly be engraved on the mould.

When transfusion, use this new type auto fluid stopping transfusion device, need not relative accompany observation or nurse and often make an inspection tour the transfusion situation, when the infusion bottle medicine liquid droplet is most, can realize cutting off automatically the liquid road, avoided because in time do not transfer to syringe needle, and cause blood back or make the generation of security incidents such as gas intravasation, both having greatly reduced the danger of transfusion, can not cause any harm to human body yet.And this new type auto fluid stopping transfusion device is simple in structure, with low cost, safety coefficient is high, and it is very convenient to operate, and also is convenient to carry out industrialized mass production.

(4) description of drawings:

Fig. 1 is the schematic appearance of this new type auto fluid stopping transfusion device;

Fig. 2 is the structural representation of this new type auto fluid stopping transfusion device;

Fig. 3 is the structural representation of the float of this new type auto fluid stopping transfusion device;

Fig. 4 is the structural representation of the switch controlling device of this new type auto fluid stopping transfusion device;

Fig. 5 is the cutaway view of Fig. 3.

(5) specific embodiment:

Below in conjunction with accompanying drawing this new type auto fluid stopping transfusion device is elaborated: as shown in Figure 1, 2, this new type auto fluid stopping transfusion device, comprise the infusion bottle 1, dropping funnel 2, flow controller 11, filter 12, the transfusion needle 13 that connect successively in order, also be provided with an automatic flow-stop device on it, this automatic flow-stop device comprises and is arranged at the floats 3 that can float in the dropping funnel 2 on the medicinal liquid, be provided with float Magnet 4 and the set controlling magnet 5 in dropping funnel 2 belows in the float 3; Described controlling magnet 5 is arranged in the switch controlling device 6, and switch controlling device 6 is the inserted link that an end is provided with handle 10 shown in Fig. 3,4, the inserting among the blind hole B in handle 10 outside modes of switch controlling device 6; Confirm S, the N utmost point of controlling magnet 5 in the switch controlling device 6 for convenience, do not mark the sign of " opening ", " pass " at the upper and lower end of the handle 10 of switch controlling device 6; When " opening " sign and knowing up, the magnetic pole of the magnetic pole of controlling magnet 5 for repelling each other with the Magnet 4 that floats will " out " sign this moment and know up that switch controlling device 6 inserts blind hole B, controlling magnet 5 promptly with unsteady Magnet 4 generation repulsive forces; When " pass " sign was known up, the magnetic pole of controlling magnet 5 was the magnetic pole of inhaling mutually with the Magnet 4 that floats, and the switch controlling device 6 that know " pass " sign up this moment inserts blind hole B, and controlling magnet 5 promptly produces captivations with unsteady Magnet 4.The structure of float 3 can be as shown in Figure 2, lower cover 9, the Magnet 4 that floats that it comprises the loam cake 8 made by ebonite, is made by flexible glue, and be wrapped in fully among loam cake 8 and the lower cover 9 with the method for the encapsulate Magnet 4 that will float; On the end face of float 3 bottoms, that is to say on the lower surface of lower cover 9 that also being provided with a cross section is leg-of-mutton annular seal seam 7; Implement in the profit at this, for easy to make, switch controlling device 6 and controlling magnet 5 wherein are located at the place, axis of dropping funnel 2 belows, at this moment, the liquid outlet of dropping funnel 2 bottoms is located on the position of departing from its axis, spacing in the switch controlling device 6 between the liquid outlet center of the axial centre of controlling magnet 5 and dropping funnel 2 bottoms is a (see figure 2), as long as and this spacing a satisfies following condition: even float 3 is partially toward any one side, when promptly being in extreme position, liquid outlet all must be in the annular seal seam 7 of float 3 bottom surfaces, and the axial centre of controlling magnet 5 should overlap with the axial centre of dropping funnel 2 as far as possible, make that like this magnetic force of controlling magnet 5 and unsteady Magnet 4 can be along the centrage transmission, float 3 is on the position of center line of dropping funnel 2 all the time, when treating that float 3 sinks, just liquid outlet is sealed; Also being provided with indication on dropping funnel 2 walls can make float 2 float on liquid level graduation mark A (see figure 1) on the medicinal liquid.

When using this new type auto flow stopping device, earlier switch controlling device 6 is inserted the blind hole B of dropping funnel 2 lower ends, " opening " sign is known up, adopt and common infusion fluid device same operation method then, earlier drain air in the whole piece infusion channel with medicinal liquid, close flow controller 11 again, press dropping funnel 2 gently, at this moment the liquid level of dropping funnel 2 raises, surpass liquid level graduation mark A up to the medicinal liquid liquid level, float 3 also normally floats on the liquid level, then switch controlling device 6 is transferred to from blind hole B, again with its anti-blind hole B that inserts, mark " pass " sign is known up, next human body punctures, loosen flow controller 11, be adjusted to suitable speed, at this moment float 3 floats over and begins transfusion on the liquid level, and when treating that infusion bottle 1 Chinese medicine drop to the greatest extent, float 3 will descend along with the decline of liquid level in the dropping funnel 2, after dropping to certain distance, float 3 sinks, and along with the captivation between controlling magnet 5 and the unsteady Magnet 4 further strengthens, 3 moments of float sink down into dropping funnel 2 bottoms liquid outlet is sealed, realize automatic flow-stop, at this moment just can transfer to transfusion needle 13 to finish transfusion.Continue transfusion if need change one bottle of liquid medicine in addition, after earlier the feed liquor pin being inserted infusion bottle 1, flicking dropping funnel 2, at this moment dropping funnel 2 liquid levels can continue again to raise, when liquid level exceeds graduation mark, transfer to switch controlling device 6, after waiting to transfer to switch controlling device 6, the magnetic force of attracting each other between Magnet 4 and the controlling magnet 5 that floats disappears, and float 3 can freely float, if this moment occurs the phenomenon that float 3 can not freely float, only need that switch controlling device 6 " is opened " the sign knowledge and insert blind hole B up, by the repulsive force effect of two Magnet, float 3 is freely floated, treat in float 3 come-up and the dropping funnel 2 that liquid levels are after on the graduation mark A, the switch controlling device of " pass " sign being known up 6 inserts blind hole B again, can continue transfusion, only need when changing liquid medicine, to repeat aforesaid operations, can finish whole infusion process.

Claims

1, automatic flow-stop transfusion device, comprise that dropping funnel is characterized in that: also have an automatic flow-stop device, this automatic flow-stop device comprises and is arranged at set unsteady Magnet (4) in the float (3) that can float in the dropping funnel (2) on the medicinal liquid, the float (3), and the set controlling magnet (5) in dropping funnel (2) below.

2, automatic flow-stop transfusion device according to claim 1 is characterized in that: described controlling magnet (5) be that N, the S utmost point can overturn mutually, be fitted to dropping funnel (2) below versatilely.

3, automatic flow-stop transfusion device according to claim 2 is characterized in that: dropping funnel (2) below offers a blind hole (B), and described controlling magnet (5) inserts in the blind hole blind hole (B).

4, automatic flow-stop transfusion device according to claim 3, it is characterized in that: described controlling magnet (5) is arranged in the switch controlling device (6), switch controlling device (6) is the inserted link that an end is provided with handle, and switch controlling device inserts in the blind hole (B) in the outside mode of handle (10).

5, automatic flow-stop transfusion device according to claim 4 is characterized in that: the handle (10) of switch controlling device (6) locates to indicate the sign of opening and closing.

6, according to any one described automatic flow-stop transfusion device in the claim 1～5, it is characterized in that: the bottom of float (3) is provided with sealing device.

7, automatic flow-stop transfusion device according to claim 6 is characterized in that: described sealing device (7) is the annular seal seam (7) that is arranged on the end face of float (3) bottom.

8, automatic flow-stop transfusion device according to claim 7 is characterized in that: the cross section of described ring-type seam (7) is triangle or circular arc.

9, according to any one described automatic flow-stop transfusion device in the claim 1～5, it is characterized in that: dropping funnel (2) wall is provided with indication can make float (3) float on liquid level graduation mark (A) on the medicinal liquid.

10, according to any one described automatic flow-stop transfusion device in the claim 1～5, it is characterized in that: switch controlling device (6) and controlling magnet (5) wherein are located at the place, axis of dropping funnel (2) below, at this moment, the liquid outlet of dropping funnel (2) bottom is located on the position of departing from its axis, spacing in the switch controlling device (6) between the liquid outlet center of the axial centre of controlling magnet (5) and dropping funnel (2) bottom is (a), and this spacing (a) satisfies following condition: even float (3) is partially toward any one side, when promptly being in extreme position, liquid outlet all must be in the annular seal seam (7) of float (3) bottom surface.