CN2438457Y - Quantity self-controller for disposable micro-pain-relieving pump - Google Patents

Abstract

The utility model relates to a quantitative self-controller for a disposable micro analgesic pump. A liquid supplying mechanism is composed of a liquid storing capsule, a connecting pipe for a medicine liquid inlet, and a connecting pipe for a medicine liquid outlet, and a control mechanism is composed of a pressure plate, a key, a self-locking key and a spring, wherein, the pressure plate is positioned between the self-locking key and the liquid storing capsule which is arranged between the pressure plate and a bottom plate. The spring which reset and close the connecting pipe for a medicine liquid outlet is arranged on one side of the key. The utility model can safely and uniformly inject the medicine liquid into a patient's body, and can also be automatically controlled by the patient to quickly inject medicine liquid with definite dosage into the patient's body, with the advantages of simple and reasonable structure, high safety, and low cost.

Description

The quantitative self-con-tained unit of disposable micro analgesic pump

This utility model relates to a kind ofly can continue the medical doser that injection can be injected pain relieving and safe medication again in good time fast by trace, belongs to medical instruments field, specifically refers to the quantitative self-con-tained unit of a kind of disposable micro analgesic pump.

Trace continues infusion appliance and disposable patient-controlled pain relieving syringe is to use comparatively general medical apparatus and instruments in medical profession at present, and its major function is by carrying out the vein dispenser to the patient, reaches the purpose of treatment and quickly alleviating pain.Existing trace continues infusion appliance, generally form by compression pump, charger, flow controller, filter, connection tube, contact pin etc., portioned product also comprises the automatic control doser, its objective is by the patient and control dosage and injection speed voluntarily, but this device is except that the function of quantitative, automatic control, do not have time control function due to structure, arbitrarily automatic control of patient causes the medicinal liquid of quick injection very few or too much.The medicinal liquid that injects is very few fast, does not reach the purpose of quickly alleviating pain, and the medicinal liquid that injects is too much fast, lacks safety.

The purpose of this utility model just is to provide a kind of novel disposable micro analgesic pump quantitative self-con-tained unit, with quantitative self control structure by adopting the controlling organization form by pressing plate, button, locking key and spring to match with the liquid storage capsule, make its both can be with medicinal liquid safety, inject in the patient body equably, also can be according to individual patient difference, the medicinal liquid of being controlled doses by the patient oneself injects in the patient body fast, thereby overcomes the shortcoming of prior art.This disposable use micro analgesic pump is done long-time micro-injection for medical institutions, as the usefulness of the lasting injection of the treatment of postoperative analgesia, chronic pain and chemotherapeutics.

The purpose of this utility model realizes in the following manner: the quantitative self-con-tained unit of a kind of disposable micro analgesic pump, consist predominantly of liquid supplying device, controlling organization and shell are formed, it is characterized in that above-mentioned liquid supplying device is by the liquid storage capsule, the medicinal liquid inlet connecting branch, the medicine liquid outlet connection tube is formed, its herb liquid inlet connecting branch is communicated with the flow controller of disposable micro analgesic pump by connection tube, the medicine liquid outlet connection tube then is communicated with the contact pin of disposable micro analgesic pump, controlling organization is by pressing plate, button, locking key, spring is formed, its center platen is between locking key and liquid storage capsule, and can move up and down in the corresponding shell pressing plate chute in the enclosure, locking key carries out matched in clearance by cylinder on it and button, when button pressed, locking key will progressively enter in the shell pressing plate chute and self-locking, side at button is provided with the guide pillar that matches with the button spring stop, and place shell guide pillar chute, spring assembly is between shell spring guide pillar and button spring stop, and the medicine liquid outlet connection tube is closed by the button spring stop under the effect of spring.

The quantitative self-con-tained unit of disposable micro analgesic pump of the present utility model, owing to form by liquid supplying device and controlling organization by having adopted, operation is doser at regular time and quantity very easily, make it when overcoming the prior art shortcoming effectively, have simple and reasonable, safe to use, advantage with low cost, this device both can be with medicinal liquid safety, inject equably in patient's body, also can be according to the patient individual difference, inject fast in patient's body by the medicinal liquid of patient oneself control doses, can be widely used in medical institutions and do long-time micro-injection, ease pain as postoperative, the usefulness of the lasting injection of the treatment of chronic pain and chemotherapeutics.

Description of drawings:

Fig. 1 is a quantitative self-con-tained unit structural representation of the present utility model;

Fig. 2 is the disposable micro analgesic pump structural representation.

Wherein: 1-liquid storage capsule, 2-shell, 3-pressing plate, 4-button, the 5-locking key, 6-medicine liquid outlet connection tube, 7-spring, 8-base plate, 9-medicinal liquid inlet connecting branch, 10-shell guide pillar chute, 11-shell spring guide pillar, 12-button spring stop, 13-shell pressing plate chute, 14-guide pillar, 15-compression pump, the 16-connection tube, 17-charger, 18-filter, the 19-flow controller, 20-contact pin, the quantitative self-con-tained unit of 21-.

Below in conjunction with accompanying drawing this utility model is described in detail.

As shown in the figure, Fig. 2 is disposable use micro analgesic pump, comprises compression pump 15, connection tube 16, charger 17, filter 18, two flow controllers 19, quantitatively self-con-tained unit 21 and contact pin 20 and two threeways.During use, earlier with disposable sterilized syringe with the medicinal liquid for preparing in charger filling opening injection pressure pump.Compression pump links to each other with charger through connection tube, relies on the tension force of medical silicone rubber in the compression pump, and medicinal liquid filters the back by threeway through filter, a part of medicinal liquid by flow controller in the lasting injection patient body of threeway, contact pin trace; Part medicinal liquid flows into quantitative self-con-tained unit through flow controller with certain flow velocity by another outlet of threeway, and by patient oneself control, the medicinal liquid that metering in the quantitative self-con-tained unit is stored injects in the patient body fast through threeway, contact pin when needing.

Fig. 1 is a kind of embodiment of quantitative self-con-tained unit.Quantitative self-con-tained unit of the present utility model is made up of liquid storage capsule 1, shell 2, pressing plate 3, button 4, locking key 5, medicine liquid outlet connection tube 6, spring 7, base plate 8, medicinal liquid inlet connecting branch 9.By finding out among Fig. 1, the quantitative self-con-tained unit of disposable micro analgesic pump of the present utility model, consist predominantly of liquid supplying device, controlling organization, shell and base plate are formed, it is characterized in that above-mentioned liquid supplying device is by liquid storage capsule 1, medicinal liquid inlet connecting branch 9, medicine liquid outlet connection tube 6 is formed, wherein liquid storage capsule 1 is arranged on the base plate 8, medicinal liquid inlet connecting branch 9 is communicated with the flow controller 19 of disposable micro analgesic pump by connection tube 16,6 of medicine liquid outlet connection tubes are communicated with the contact pin 20 of disposable micro analgesic pump, controlling organization is by pressing plate 3, button 4, locking key 5, spring 7 is formed, its center platen 3 is between locking key 5 and liquid storage capsule 1, and can move up and down in the corresponding shell pressing plate chute 13 in shell 2, locking key 5 carries out matched in clearance by cylinder on it and button 4, when button 4 presses down, locking key 5 will progressively enter in the shell pressing plate chute 13 and self-locking, side at button 4 is provided with the guide pillar 14 that matches with button spring stop 12, and place shell guide pillar chute 10, spring 7 devices are between shell spring guide pillar 11 and button spring stop 12, and medicine liquid outlet connection tube 6 is closed by the button spring stop under the effect of spring.Above-mentioned button 4 above-below directions are by guide pillar 14 location, and during external force effect button, guide pillar is along 10 horizontal movements of shell guide pillar chute, and button is that fulcrum rotates with the guide pillar, and button 4 left and right directions are located by spring 7, during external force effect button, but move left and right.

In concrete enforcement, above-mentioned liquid storage capsule 1 is by medicinal liquid inlet connecting branch 9, medicine liquid outlet connection tube 6 and two medical PVC thin film are welded, liquid storage capsule 1 places between pressing plate 3 and the base plate (8), when not having external force effect button 4, medicine liquid outlet connection tube 6 is under the effect of spring 7, by compressing and close every post in button spring stop 12 and the shell; Above-mentioned shell 2 is designed to guiding surface with button 4 right-hand member touching positions, and button 4 right-hand members place the shell guiding surface, and during the button 4 of power effect outside, to the lower slider time, opposite shell produces displacement to the left side to button 4 along the shell guiding surface; The inclined-plane of button 4 right-hand members for matching with the inclined-plane of shell 2, when guaranteeing that button 4 presses down, toward moving left, button 4 middle parts have hole, a garden partly to cooperate with locking key 5 garden posts simultaneously, guide pillar on the button 4 can be left and right mobile in shell guide pillar chute 10, and button 4 is rotated around guide pillar; Pressing plate 3 is installed in the shell pressing plate chute 13 of shell 2, can upper and lowerly move.

When using, under naturalness, utilize the elastic force of spring that the medicine liquid outlet connection tube is closed, locking key, pressing plate relies on action of gravity respectively along the hole, garden, middle part on the button, chute on the shell glides and contacts with the liquid storage capsule, when medicinal liquid under the compression pump effect, pass through flow controller, when the medicinal liquid inlet connecting branch flows into the liquid storage capsule with certain flow velocity, the liquid storage capsule slowly raises, with the slow jack-up of pressing plate, simultaneously pressing plate is the slow jack-up of locking key, when locking key rises to when flushing with button top, liquid storage capsule inner liquid medicine reaches specified volume, and medicinal liquid no longer increases.Just reach the liquid dose and the blanking time of automatic control this moment.As patient's feels pain, button to pressing down, is utilized on button right-hand member inclined-plane and the shell inclined-plane that cooperates with it, button is moved to the left when pressing down simultaneously; Spring compression this moment, the medicine liquid outlet connection tube is opened, with the compression of liquid storage capsule, the medicinal liquid that metering stores in the liquid storage capsule injects in patient's body by medicine liquid outlet connection tube, threeway, the contact pin of opening button fast, realizes the purpose of quickly alleviating pain by locking key, pressing plate.After acting on the pressure disappearance under the button, button resets under the effect of spring force, the medicine liquid outlet connection tube is closed, medicinal liquid flows into the liquid storage capsule with certain flow velocity again through flow controller, medicinal liquid inlet connecting branch, do not reach when a certain amount of at liquid storage capsule herb liquid, locking key still is positioned at shell pressing plate chute can not move left and right, and can't the medicine liquid outlet connection tube is open-minded, realizes the self-locking purpose.Adjacent the shortest blanking time of injecting fast medicinal liquid for twice by flow controller and quantitatively self-con-tained unit controlled, make the intravital medicinal liquid of injection patient in time, obtain dual control on the dosage, thereby reach neither excessive, again can safe aim of alleviating pain.

Claims (5)

1, the quantitative self-con-tained unit of disposable micro analgesic pump, consist predominantly of liquid supplying device, controlling organization, shell and base plate are formed, it is characterized in that above-mentioned liquid supplying device is by liquid storage capsule (1), medicinal liquid inlet connecting branch (9), medicine liquid outlet connection tube (6) is formed, wherein liquid storage capsule (1) is arranged on the base plate (8), medicinal liquid inlet connecting branch (9) is communicated with the flow controller (19) of disposable micro analgesic pump by connection tube (16), medicine liquid outlet connection tube (6) then is communicated with the contact pin (20) of disposable micro analgesic pump, above-mentioned controlling organization is by pressing plate (3), button (4), locking key (5), spring (7) is formed, its center platen (3) is positioned between locking key (5) and the liquid storage capsule (1), and can move up and down in the corresponding shell pressing plate chute (13) in shell (2), locking key (5) carries out matched in clearance by cylinder on it and button (4), at button (4) when pressing down, locking key (5) will progressively enter in the shell pressing plate chute (13) and self-locking, side at button (4) is provided with the guide pillar (14) that links to each other with button spring stop (12), and place shell guide pillar chute (10), spring (7) device is between shell spring guide pillar (11) and button spring stop (12), and medicine liquid outlet connection tube (6) is closed by the button spring stop under the effect of spring.

2, the quantitative self-con-tained unit of disposable micro analgesic pump according to claim 1, it is characterized in that above-mentioned liquid storage capsule (1) is by medicinal liquid inlet connecting branch (9), medicine liquid outlet connection tube (6) and two medical PVC thin film are welded, liquid storage capsule (1) places between pressing plate (3) and the base plate (8), when not having external force effect button (4), medicine liquid outlet connection tube (6) is under the effect of spring (7), by compressing and close every post in button spring stop (12) and the shell.

3, the quantitative self-con-tained unit of disposable micro analgesic pump according to claim 1 is characterized in that above-mentioned shell (2) and button (4) right-hand member touching position are designed to guiding surface, and button (4) right-hand member places the shell guiding surface.

4, the quantitative self-con-tained unit of disposable micro analgesic pump according to claim 1, it is characterized in that the inclined-plane of button (4) right-hand member for matching with the inclined-plane of shell (2), its middle part has hole, a garden partly to cooperate with locking key (5) garden post, guide pillar on the button (4) can be left and right mobile in shell guide pillar chute (10), and button (4) is rotated around guide pillar.

5, the quantitative self-con-tained unit of disposable micro analgesic pump according to claim 1 is characterized in that above-mentioned pressing plate (3) is installed in the shell pressing plate chute (13) of shell (2).

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