CN2363722Y

CN2363722Y - Infusion pump controlled by patient using it

Info

Publication number: CN2363722Y
Application number: CN 99225731
Authority: CN
Inventors: 王锦淇
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-09
Filing date: 1999-02-09
Publication date: 2000-02-16
Anticipated expiration: 2009-02-09

Abstract

The utility model relates to a transfusion pump controlled by a patient, which is a medicine liquid injection device. The utility model comprises a one-way valve 3, a pressure pump 1, current limiters 10, 11, a continuous injection valve 9, a self control injection valve 8, a quantitative injector 7 and an interface 4, wherein, the quantitative injector is a key type, comprising a key 13, a flat medicine bursa 18 and a spring 16. The utility model is used for continuous micro injection. The quantitative injector can be used for automatically controlling to inject large amounts of safe medicament when a patient has serious pain to achieve the fast analgesic effect.

Description

Patient-controlled topping-up pump

This utility model relates to the structure that a kind of medicinal liquid continues infusion appliance, a kind of patient-controlled topping-up pump.

Trace continues the existing report of infusion appliance, has introduced a kind of structure of lasting infusion appliance as Chinese patent 93208989.5, forms by compression pump, filter, reducer, connection tube and entry needle are first-class, and the flow of reducer can be regulated.

The purpose of this utility model is to propose the micro-injection pump that a kind of patient can automatic-control pain-relieving, uses it, and patients after surgery or cancer patient are injected into medicine relatively large and that be safe dose in that si dol urg is self controllable, thereby produce the effect of quickly alleviating pain.

This patient-controlled topping-up pump comprises check valve, compression pump, two current limiters, continuous injection valve, automatic control introduction valve, calibrated shot device and contact pin interface.Check valve is positioned at the import of compression pump, the pressure delivery side of pump links to each other with the import of two current limiters respectively by a threeway, the outlet of a current limiter links to each other with the import of continuous injection valve, another current limiter outlet links to each other with the import of automatic control introduction valve, the outlet of automatic control introduction valve links to each other with the import of calibrated shot device, contact pin interface links to each other with the outlet of continuous injection valve and the outlet of calibrated shot device respectively by a threeway, described calibrated shot device is a button calibrated shot device, comprise button, a pancake medicine bag and a spring, spring is fixed in the middle part of button, medicine bag is positioned at the below of button, and the output connection tube of medicine bag passes through from the below of button front end.

When this patient-controlled topping-up pump uses, the medicinal liquid for preparing is added in the compression pump, connect contact pin in contact pin interface, contact pin is inserted in patient's the vein blood vessel, open the continuous injection valve, rely on the elasticity of the rubber bag tank in the compression pump, medicinal liquid injects in the patient body after the current limiter current limliting lentamente.If the automatic control introduction valve is also opened, then medicinal liquid also passes through another current limiter with in the calibrated shot of the speed inflow slowly device.When calibrated shot device inner accumulated behind a certain amount of medicinal liquid, if patient's pain is unbearably, can press the button of calibrated shot device, medicinal liquid is injected in the body fast, reach the purpose of quickly alleviating pain.The volume of calibrated shot device has guaranteed that fast injection is gone into intravital medicinal liquid can be inexcessive.After fast injection finishes, must wait until the time of setting, could accumulate the medicinal liquid of q.s in the calibrated shot device, carry out fast injection next time, adjacent twice fast injection has enough blanking times, makes the medication amount that enters health controlled, can be inexcessive.

Accompanying drawing 1 is the cut-away view of this patient-controlled topping-up pump;

Accompanying drawing 2 is the outline drawing of patient-controlled topping-up pump;

Accompanying drawing 3 is the side view of Fig. 2;

Accompanying drawing 4 is A-A cutaway views of Fig. 2.

As depicted in figs. 1 and 2, this patient-controlled topping-up pump comprises check valve 3, compression pump 1, two current limiters 10,11, continuous injection valve 9, automatic control introduction valve 8, calibrated shot device 7 and contact pin interface 4.Check valve is positioned at the import of compression pump, and medicinal liquid adds in the compression pump by check valve.The pressure delivery side of pump links to each other with the import of two current limiters 10,11 respectively by threeway 5.The outlet of a current limiter 11 links to each other with the import of continuous injection valve 9, the outlet of another current limiter 10 links to each other with the import of automatic control introduction valve 8, the outlet of automatic control introduction valve 8 links to each other with the import of calibrated shot device 7, and contact pin interface 4 links to each other with the outlet of continuous injection valve 9 and the outlet of calibrated shot device 7 respectively by a threeway 6.Capsule 2 in the compression pump is connected on the port of export of check valve 3, and behind check valve injection medicinal liquid, capsule swells, and relies on capsular elasticity that medicinal liquid is pressed to two current limiters.When only opening continuous injection valve 9, topping-up pump will carry out fluid injection at a slow speed.When only opening automatic control introduction valve 8, can carry out quantitatively fluid injection fast intermittently.When automatic control introduction valve and continuous injection valve are opened simultaneously, can in the process of fluid injection at a slow speed, carry out quantitatively fluid injection fast intermittently simultaneously.

As shown in Figure 4, the calibrated shot device of this patient-controlled topping-up pump is a button calibrated shot device, comprises by strong 13, a pancake medicine bag 18 and a spring 16.Spring is fixed in the middle part of button, and medicine bag is positioned at the below of button, and the output connection tube 15 of medicine bag passes through from the below of the front end 14 of button.At ordinary times, rely on the elastic reaction of spring, the front end of button presses down, and the output connection tube of medicine bag is pushed down, and the output channel of medicine bag cuts off.When pushing button, the output connection tube is opened, simultaneously, medicine bag is pushed by button, and medicinal liquid is just injected in the body fast, after fast injection finishes, compression pump 1 charges into medicinal liquid lentamente by current limiter 10 in medicine bag, prepare fast injection next time, and guarantee between twice fast injection there are enough blanking times, 17 is the base plate of button calibrated shot device among Fig. 4.

As Fig. 1, Fig. 2 and shown in Figure 3, this patient-controlled topping-up pump can also have a pancake shell 12, and except that contact pin interface and connection tube thereof, all parts in addition all are contained in this shell, and the button 13 of described calibrated shot device exposes from the surface of shell.Be convenient to patient-controlled operation.

Claims

1, a kind of patient-controlled topping-up pump, comprise check valve (3), compression pump (1), two current limiters (10) (11), continuous injection valve (9), automatic control introduction valve (8), calibrated shot device (7) and contact pin interface (4), check valve is positioned at the import of compression pump, the pressure delivery side of pump links to each other with the import of two current limiters respectively by a threeway (5), the outlet of a current limiter (11) links to each other with the import of continuous injection valve (9), the outlet of another current limiter (10) links to each other with the import of automatic control introduction valve (8), the outlet of automatic control introduction valve (8) links to each other with the import of calibrated shot device (7), contact pin interface (5) links to each other with the outlet of continuous injection valve (9) and the outlet of calibrated shot device (7) respectively by a threeway (6), it is characterized in that described calibrated shot device (7) is a button calibrated shot device, comprise button (13), a pancake medicine bag (18) and a spring (16), spring is fixed in the middle part of button, medicine bag (18) is positioned at the below of button, and the output connection tube (15) of medicine bag passes through from the below of the front end of button.

2, patient-controlled topping-up pump as claimed in claim 1, it is characterized in that it also comprises a pancake shell (12), parts in addition all except that contact pin interface and connection tube thereof all are contained in this shell, and the button of described calibrated shot device (13) exposes from the surface of shell.