CN201036637Y

CN201036637Y - Adjustable disposable continuously injector

Info

Publication number: CN201036637Y
Application number: CNU2007200026613U
Authority: CN
Inventors: 李立辉; 牛建军; 王幸福
Original assignee: Beijing KSH Technology Institute
Current assignee: Beijing KSH Technology Institute
Priority date: 2007-01-26
Filing date: 2007-01-26
Publication date: 2008-03-19
Anticipated expiration: 2017-01-26

Abstract

The utility model discloses an adjustable type disposable continuous injector, which mainly consists of a rotor(1), a positioning ring(2), a stator(3), an end cover(4), a plastic pipe(5) and a positioning pin(6), wherein, the positioning ring(2) is sleeved in a column(32) of the stator(3), and the positioning ring(2) is assembled fully through a self-locking structure(33) of the column(32); the rotor(1) can be sleeved on the stator(3) in a freely rotating manner, and the rotor(1) and the stator(3) can be fixed at some position through the positioning pin(6); the plastic pipe(5) passes externally through the positioning ring(2) through a tee(41), and then is in some position of an arched chute(15) of the rotor(1) through the rotation of the rotor(1), thus the flow section of the plastic pipe(5) is changed, and the flux is changed sequentially so as to realize the switch of three different fluxes. The utility model has the advantages of simple structure, low manufacturing cost, and reliable and easy use.

Description

The disposable use of adjustable type continues infusion appliance

Technical field

This utility model relates to a kind of disposable lasting infusion appliance, and You Zhike realizes the Dispensable continuous infusion appliance of adjustable type that three different flows switch.

Background technology

Present disposable lasting infusion appliance, be mainly used in and solve postoperative analgesia, required dosage is smaller, and the dosage that needs in operation is carried out is bigger, but also need be according to patient's pain and tolerance degree administration, and transfusion set can not satisfy current needs.Press for a kind of lasting infusion appliance of switching between the different flow of can realizing clinically at present, required infusion appliance can avoid electronic pump to cause the excessive of medicinal liquid because of certain accident, tighten a kind of simple in structure that mechanism can guarantee again that flow velocity can be not too fast by machinery for this reason, cheap, use the reliable easy Dispensable continuous infusion appliance of adjustable type, this is the task of top priority.

Summary of the invention

According to background technology, the purpose of this utility model is to provide a kind of infusion appliance that rotor, centring ring, stator and plastic tube are formed that mainly contains, it is by the rotation of rotor, make plastic tube be in a certain position of rotor degree of broadening cambered way, tighten or loosen the flow area of plastic tube, and realize to end or logical, thereby make infusion appliance realize switching between three different flows.

To achieve these goals, this utility model is achieved through the following technical solutions:

The disposable use of a kind of adjustable type continues infusion appliance, mainly by rotor (1), centring ring (2), stator (3), end cap (4), plastic tube (5) and alignment pin (6) are formed, wherein: rotor (1) mainly is made of the barrel-shaped housing (11) with lower bottom part (12), outer surface periphery Lower Half along barrel-shaped housing (11) is shaped on semi-cylindrical projection (13), and be shaped on three alignment pins that have different angles each other along outer peripheral edges and insert ear (16), its lower bottom part (12) center is shaped on circular hole (14), is provided with the arcual slideway of degree of broadening (15) in the both sides of circular hole (14); Centring ring (2) is the cylindrical housings (21) of bottom band flange, and its center is shaped on step variable cross-section hole (22), and is shaped on guide hole (23) in its both sides; Be shaped on step variable cross-section inserting column (32) on the top of drum shape housing (31), and be provided with self-locking structure (33) at the top of inserting column (32), thereby form stator (3), the also symmetric alignment pin that is shaped on is inserted ear (35) in its both sides, also is shaped on drum shape housing (31) and decorates hole (36); Centring ring (2) is sleeved on the inserting column (32) of stator (3), self-locking structure (33) by inserting column (32) is seated centring ring (2), be fixed between positioning step (34) and the self-locking structure (33), rotor (1) free to rotate with stator (3) suit, insert ear (16) and the slotting ear (35) of alignment pin is relatively fixed on a certain definite position rotor (1) and stator (3) by alignment pin (6) and alignment pin, plastic tube (5) is connected with the threeway (41) of end cap (4) from outside, pass two plastic tubes (5) of centring ring (2) guide hole (22), be connected with the threeway (41) of end cap (4) from inside configuration.

Owing to adopted technique scheme, the utlity model has following advantage and effect:

1, this utility model has realized that a kind of adjustable type that switches between three kinds of different flows of can realizing that presses on the hospital clinical once continues infusion appliance, solved the lower problem of some electronic product reliability well, owing to adopt the action of frame for movement to avoid electronic pump once to cause the accident that the excessive patient of causing of medicinal liquid is uncomfortable even suffer a shock because of the program entanglement; Deflation mechanism by machinery guarantees that flow velocity can be not too fast, has realized again simultaneously distributing by patient's situation and the required medicinal liquid that carries out.

2, this utility model is applicable in the operation process and postoperative analgesia, can be used for anesthesia such as subcutaneous, epidural, vein, peripheral nervous retardance, is applicable to the treatment of internal medicine acute pain, cancerous protuberance pain therapy, obstetrics' pain therapy, children's's pain therapy etc.

3, this utility model is simple in structure, and is cheap, uses reliably simple and easy.

Description of drawings

Fig. 1 is this utility model population structure cross-sectional schematic

Fig. 2 A is this utility model rotor structure front elevational schematic

Fig. 2 B is the A-A cross-sectional schematic of this utility model Fig. 2 A

Fig. 2 C is the B-B cross-sectional schematic of this utility model Fig. 2 A

Fig. 3 A is this utility model centring ring structure front elevational schematic

Fig. 3 B is the schematic top plan view of this utility model Fig. 3 A

Fig. 3 C is the side-looking cross-sectional schematic of this utility model Fig. 3 A

Fig. 3 D is that the B of this utility model Fig. 3 A is to sketch map

Fig. 4 A is this utility model stator structure front elevational schematic

Fig. 4 B is this utility model Fig. 4 A schematic top plan view

Fig. 4 C is this utility model Fig. 4 A side-looking cross-sectional schematic

Fig. 4 D is the A-A cross-sectional schematic of this utility model Fig. 4 B

Fig. 5 is three kinds of flow rotors of this utility model and stator switching position sketch map

The specific embodiment

By Fig. 1 to Fig. 5 illustrate, the disposable use of a kind of adjustable type continues infusion appliance, mainly by rotor 1, centring ring 2, stator 3, end cap 4, plastic tube 5 and alignment pin 6 are formed, wherein: rotor 1 mainly is made of the barrel-shaped housing 11 with lower bottom part 12, outer surface periphery Lower Half along barrel-shaped housing 11 is shaped on semi-cylindrical protruding 13, and be shaped on three alignment pins that have different angles each other along outer peripheral edges and insert ear 16, its lower bottom part 12 centers are shaped on circular hole 14, are provided with the arcual slideway 15 of degree of broadening in the both sides of circular hole 14; Centring ring 2 is cylindrical housings 21 of bottom band flange, and its center is shaped on step variable cross-section hole 22, and is shaped on guide hole 23 in its both sides; Be shaped on step variable cross-section inserting column 32 on the top of drum shape housing 31, and be provided with self-locking structure 33 at the top of inserting column 32, thereby form stator 3, the also symmetric alignment pin that is shaped on is inserted ear 35 in its both sides, also is shaped on drum shape housing 31 and decorates hole 36; Centring ring 2 is sleeved on the inserting column 32 of stator 3, self-locking structure 33 by inserting column 32 is seated centring ring 2, be fixed between positioning step 34 and the self-locking structure 33, rotor 1 free to rotate with stator 3 suits, inserting ear 16 and alignment pin by alignment pin 6 and alignment pin inserts ear 35 rotor 1 and stator 3 is relatively fixed on a certain definite position, plastic tube 5 is connected with the threeway 41 of end cap 4 from outside, pass two plastic tubes 5 of centring ring 2 guide holes 22, be connected with the threeway 41 of end cap 4 from inside configuration.

Other knows that this utility model is used for the product of disposable use infusion pump, and required liquid flows into infusion appliance through plastic tube 5, utilizes threeway 41 to be divided into two-way, remerges Cheng Yilu through threeway 41 and flows out infusion appliance through plastic tube 5.

Illustrated by Fig. 1 and Fig. 5, centring ring 2 and stator 3 relative fixed are motionless, and when rotor 1 rotated to the A position of Fig. 5, two plastic tubes 5 circulated simultaneously, and this moment, effusive flow was a two tubes flow sum.

When rotor 1 rotates to the B position of Fig. 5, wherein plastic tube 5 compacted shutoff, this moment, effusive flow was the flow of a pipe.

When rotor 1 rotated to the C position of Fig. 5, another root plastic tube 5 was different from the shutoff of B position by the shutoff of part, and this moment, effusive flow was the flow different with the B position with the A position.

Claims

1. the disposable use of adjustable type continues infusion appliance, mainly by rotor (1), centring ring (2), stator (3), end cap (4), plastic tube (5) and alignment pin (6) are formed, it is characterized in that: rotor (1) mainly is made of the barrel-shaped housing (11) with lower bottom part (12), outer surface periphery Lower Half along barrel-shaped housing (11) is shaped on semi-cylindrical projection (13), and be shaped on three alignment pins that have different angles each other along outer peripheral edges and insert ear (16), its lower bottom part (12) center is shaped on circular hole (14), is provided with the arcual slideway of degree of broadening (15) in the both sides of circular hole (14); Centring ring (2) is the cylindrical housings (21) of bottom band flange, and its center is shaped on step variable cross-section hole (22), and is shaped on guide hole (23) in its both sides; Be shaped on step variable cross-section inserting column (32) on the top of drum shape housing (31), and be provided with self-locking structure (33) at the top of inserting column (32), thereby form stator (3), the also symmetric alignment pin that is shaped on is inserted ear (35) in its both sides, also is shaped on drum shape housing (31) and decorates hole (36); Centring ring (2) is sleeved on the inserting column (32) of stator (3), self-locking structure (33) by inserting column (32) is seated centring ring (2), be fixed between positioning step (34) and the self-locking structure (33), rotor (1) free to rotate with stator (3) suit, insert ear (16) and the slotting ear (35) of alignment pin is relatively fixed on a certain definite position rotor (1) and stator (3) by alignment pin (6) and alignment pin, plastic tube (5) is connected with the threeway (41) of end cap (4) from outside, pass two plastic tubes (5) of centring ring (2) guide hole (22), be connected with the threeway (41) of end cap (4) from inside configuration.