CN203400372U

CN203400372U - Pre-filling type liquid-medicine separated type injection washing device

Info

Publication number: CN203400372U
Application number: CN201320429020.1U
Authority: CN
Inventors: 曹烽
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-17
Filing date: 2013-07-17
Publication date: 2014-01-22
Anticipated expiration: 2023-07-17

Abstract

The utility model belongs to the field of medical equipment, and relates to a pre-filling type liquid-medicine separated type injection washing device. The pre-filling type liquid-medicine separated type injection washing device comprises a needle cylinder and a piston arranged in the needle cylinder. The piston is provided with a first inner axially-through cavity, and a sleeve is connected to the tail portion of the piston in a threaded mode. The rod body of a push rod partially penetrates through the first inner cavity and stretches into a second inner cavity of the sleeve, a piston head is arranged on the front end portion of the push rod, a buckle part is arranged on the rear end portion of the push rod, a clamping groove connector is locked to the tail end of the push rod through the buckle part, a spring is arranged on the rod body, stretching into the second inner cavity, of the push rod in a sleeved mode and is in a compressed state, and the two ends of the spring abut against a necking part at the front end of the sleeve and the clamping groove connector respectively. A medicine storage room is arranged on the rod body, placed in the first inner cavity, of the push rod, and steeping liquid openings are formed in the peripheral surface of the medicine storage room. The pre-filling type liquid-medicine separated type injection washing device ensures that medicine and solvent can be completely isolated when being pre-filled and can be used instantly when mixed.

Description

Pre-filled separating liquid medicine type Disposable irrigator

Technical field

This utility model belongs to medical apparatus and instruments field, relates to a kind of pre-filled separating liquid medicine type Disposable irrigator.

Background technology

Venous indwelling passage often has thrombosis stopping state to occur, and now needs to carry out embolism extinguishing with anticoagulant, and conventional anticoagulant is heparin sodium, and this anticoagulant needs to use immediately after dosing, otherwise will lose efficacy, and this gives the clinical inconvenience of bringing.

At present, carry out the preset difficult point of medicinal liquid and be preparing in advance rear standby, reason is that the shelf life of product is extremely short, only has 2 hours, is not suitable for suitability for industrialized production.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of pre-filled separating liquid medicine type Disposable irrigator simple in structure, ingenious, rational is provided, it can be when the prepackage of medicine and solvent, can guarantee that it isolates completely, during use, can join and use again.

The technical scheme providing according to this utility model: a kind of pre-filled separating liquid medicine type Disposable irrigator, comprise the piston that syringe and syringe are built-in, be characterised in that: described piston has first inner chamber axially connecting, and bush whorl is connected in piston tail; Push rod shank portion stretches in the second inner chamber of sleeve through described the first inner chamber, described push rod leading section has piston head, rearward end has clamping part, draw-in groove joint lock onto push rod tail end by described clamping part, spring housing is loaded on push rod and stretches on the body of rod in the second inner chamber, and spring is in compressive state, and two ends hold out against respectively on barrel forward end closing in portion and draw-in groove joint; Described push rod is placed on the body of rod of the first inner chamber and is provided with storage coyote hole, on the outer peripheral face of storage coyote hole, is provided with immersion mouth.

As further improvement of the utility model, between described piston head and piston, be provided with the first sealing ring.

As further improvement of the utility model, on the push rod body of rod, store coyote hole rear positions place and be provided with groove, in described groove, be provided with the second sealing ring.

As further improvement of the utility model, described draw-in groove joint afterbody is provided with projection, and guide rod is connected in projection by the groove of its front end.

Compared with prior art, advantage is this utility model: this utility model, when the prepackage of medicine and solvent, can guarantee that it isolates completely, during use, can join and use again.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

The specific embodiment

Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.

As shown in Figure 1, comprise syringe 1, piston 2, the first inner chamber 2-1, piston head 3, the first sealing ring 4, sleeve 5, the 5-1 of closing in portion, the second inner chamber 5-2, push rod 6, storage coyote hole 6-1, draw-in groove joint 7, projection 8, guide rod 9, spring 10 etc.

As shown in Figure 1, a kind of pre-filled separating liquid medicine type Disposable irrigator, comprises the piston 2 that syringe 1 and syringe 1 are built-in, and described piston 2 has a first inner chamber 2-1 who axially connects, and sleeve 5 is threadedly connected to piston 2 afterbodys, push rod 6 shank portion are passed described the first inner chamber 2-1 and are stretched in the second inner chamber 5-2 of sleeve 5, described push rod 6 leading sections have piston head 3, rearward end has clamping part 6-3, draw-in groove joint 7 lock onto push rod 6 tail ends by described clamping part 6-3, spring 10 is set in push rod 6 and stretches on the body of rod in the second inner chamber 5-2, spring 10 two ends hold out against respectively on the sleeve 5 front end closing in 5-1 of portion and draw-in groove joint 7, spring 10 has in compressive state the trend outwards flicking, elastic force by spring 10 tightly fits in piston head 3 on piston 2 ends, and between piston head 3 and piston 2, be provided with the first sealing ring 4, push rod 6 is placed in and on the body of rod of the first inner chamber 2-1, is provided with storage coyote hole 6-1, by above-mentioned measure realization medicinal liquid in syringe 1 when not needing to make up a prescription, can not pour in down a chimney in the first inner chamber 2-1 and make to store the loss of drug potency in coyote hole 6-1, on the outer peripheral face of storage coyote hole 6-1, be provided with immersion mouth.

On push rod 6 bodies of rod, store coyote hole 6-1 rear positions place and be provided with groove, in described groove, be provided with the second sealing ring 6-2.

Described draw-in groove joint 7 afterbodys are provided with projection 8, and guide rod 9 is connected in projection 8 by the groove of its front end.

Work process of the present utility model is as follows: in storage coyote hole 6-1, be placed with heparin sodium and wait for medicine, in syringe 1, solvent is housed, when clinical need to use, as long as guide rod 9 is connected in the projection 8 of draw-in groove joint 7 along sleeve 5, and promote guide rod 9 the storage coyote hole 6-1 of push rod 6 front ends is released from the first inner chamber 2-1 of piston 2, make it be placed in the solvent in syringe 1 completely, release, can be used after the medicine dissolution in storage coyote hole 6-1.

Claims

1. a pre-filled separating liquid medicine type Disposable irrigator, comprise the piston (2) that syringe (1) and syringe (1) are built-in, it is characterized in that: described piston (2) has first inner chamber (2-1) axially connecting, and sleeve (5) is threadedly connected to piston (2) afterbody; Push rod (6) shank portion stretches in second inner chamber (5-2) of sleeve (5) through described the first inner chamber (2-1), described push rod (6) leading section has piston head (3), rearward end has clamping part (6-3), draw-in groove joint (7) lock onto push rod (6) tail end by described clamping part (6-3), spring (10) is set in push rod (6) and stretches on the body of rod in the second inner chamber (5-2), and spring (10) is in compressive state, and two ends hold out against respectively on sleeve (5) front end closing in portion (5-1) and draw-in groove joint (7); Described push rod (6) is placed on the body of rod of the first inner chamber (2-1) and is provided with storage coyote hole (6-1), on the outer peripheral face of storage coyote hole (6-1), is provided with immersion mouth.

2. pre-filled separating liquid medicine type Disposable irrigator as claimed in claim 1, is characterized in that: between described piston head (3) and piston (2), be provided with the first sealing ring (4).

3. pre-filled separating liquid medicine type Disposable irrigator as claimed in claim 1, is characterized in that: on push rod (6) body of rod, store coyote hole (6-1) rear positions place and be provided with groove, be provided with the second sealing ring (6-2) in described groove.

4. pre-filled separating liquid medicine type Disposable irrigator as claimed in claim 1, is characterized in that: described draw-in groove joint (7) afterbody is provided with projection (8), and guide rod (9) is connected in projection (8) by the groove of its front end.