CN103961766B

CN103961766B - A kind of squash type venous transfusion flow regulator

Info

Publication number: CN103961766B
Application number: CN201410203976.9A
Authority: CN
Inventors: 王晓伟; 滕培春; 于艳杰
Original assignee: Shandong Jianzhu University
Current assignee: Shandong Jianzhu University
Priority date: 2014-05-15
Filing date: 2014-05-15
Publication date: 2016-06-22
Anticipated expiration: 2034-05-15
Also published as: CN103961766A

Abstract

A kind of squash type venous transfusion flow regulator, it is made up of upper spiral cover, bottom base, tube for transfusion, shift fork, it is characterized in that: the upper surface perforate of the tube for transfusion upper spiral cover of traverse and the end face mesopore of bottom base, during device work, spiral cover in rotation, drive shift fork to rotate around bottom base straight pin by upper spiral cover cylinder, under eccentric rotary effect, shift fork fork section side extruding tube for transfusion, and so as to deform, it is achieved thereby that the adjustment of infusion flow。The feature such as this device has simple in construction, can easily be accommodated。

Description

A kind of squash type venous transfusion flow regulator

Technical field

The present invention relates to a kind of medical apparatus and instruments, the specifically flow regulator of a kind of disposable transfusion device for venous transfusion。

Background technology

At present, medical personnel, when doing injection drop treatment to injury patient, generally adopt the method for artificial timer counter to regulate and drip speed, adopt and control in this way to drip speed, i.e. not science, also dangerous。Life often occurs due to patient oneself regulate drip speed and cause that transfusion is too fast or complete in transfusion, the situation such as blocking of infusing does not process in time after occurring and causes serious consequence, in simultaneously current armarium, most widely used transfusion speed controller is oblique roller form, its simple in construction, low cost of manufacture, but this infusion regulator use procedure is easily caused the phenomenons such as tube for transfusion deformation, roller bearing displacement, slippage, thus the transfusion speed change caused, regulate and take turns not easily stably fixed position。

Patent ZL03213959.4, ZL00267516.1, ZL00136881.8, ZL00266528.X have employed sensor measurement and display drips number, driven by motor controlling organization to regulate flow velocity, and system complex, cost are high。

Patent ZL98200544.X proposes the device of the plunger displacement pump control pressing plate extruding tube for transfusion adjustment flow velocity of manual operation, and operating technology is required higher and needs also exist for artificial counting, measuring and calculating flow by this device。

Summary of the invention

For above-mentioned deficiency, the invention provides a kind of squash type venous transfusion flow regulator。

The present invention is achieved by the following technical solutions: a kind of squash type venous transfusion flow regulator, it is made up of upper spiral cover, bottom base, tube for transfusion, shift fork, it is characterised in that: tube for transfusion is just passed through the upper surface perforate of spiral cover and the end face mesopore of bottom base。The end face perforate of upper spiral cover is slightly larger than tube for transfusion external diameter, upper spiral cover is internal protrudes a cylinder, this cylinder inserts the groove slidably of shift fork, upper spiral cover circumference hypomere has female thread, screw with bottom base external screw thread, inside upper spiral cover circumference hypomere wall thickness have one section thinning, in order to shift fork rotates wherein。A straight pin is protruded in the other side of bottom base end face mesopore, and this straight pin plays the fixing shift fork effect of support, and the other opposite side of bottom base end face mesopore has a boss, this boss side surfaces contacts with tube for transfusion, realizing the location of tube for transfusion, there is external screw thread on the bottom base face of cylinder, screws with upper rotary cap internal thread。The outer ring annular knurl of upper spiral cover and bottom base, to facilitate rotation。Shift fork inner hole sleeve, on the straight pin of bottom base, is groove in the middle of shift fork fork section, pitches section one side and tube for transfusion outer diameter contact, and for strengthening shift fork rigidity and saving rotation space, shift fork end is designed as an oblique connection；

During device work, spiral cover in rotation, the cylinder of upper spiral cover drives shift fork to rotate around the straight pin of bottom base, owing to being off rotating, shift fork fork section side extruding tube for transfusion, and so as to deform, it is achieved thereby that the adjustment of infusion flow。

Usefulness of the present invention: a kind of squash type venous transfusion flow regulator is provided, to make up the defect of existing transfusion device speed regulator, realize the functions such as easily operated, device is simple, be suitable to the needs of different crowd body constitution treatment, simultaneously simple in construction, easy to manufacture, cost is low, workable。

Accompanying drawing explanation

Accompanying drawing 1 is the structural representation of the present invention。

Accompanying drawing 2 is upper spiral cover profile。

Accompanying drawing 3 is bottom base profile。

Accompanying drawing 4 is shift fork profile。

Wherein, 1, upper spiral cover, 2, bottom base, 3, tube for transfusion, 4, shift fork。

Detailed description of the invention

A kind of squash type venous transfusion flow regulator, is made up of upper spiral cover 1, bottom base 2, tube for transfusion 3, shift fork 4, it is characterised in that: the upper surface perforate 9 of the tube for transfusion 3 upper spiral cover 1 of traverse and bottom base 2 end face mesopore 15。Upper surface perforate 9 aperture of upper spiral cover 1 is slightly larger than tube for transfusion external diameter, upper spiral cover 1 is internal protrudes a cylinder 5, this cylinder 5 inserts in the groove 6 of shift fork 4 and slides wherein, upper spiral cover 1 circumference hypomere female thread 7, screw with the external screw thread 8 of bottom base 2, cambered surface 10 place wall thickness reduction inside upper spiral cover 1 circumference hypomere, in order to the shift fork 4 rotation in this section。A straight pin 13 is protruded in the other side of bottom base 2 end face mesopore 15, this straight pin 13 plays the fixing shift fork 4 of support and acts on, the other opposite side of bottom base 2 end face mesopore 15 has a boss 16, this boss 16 side contacts with tube for transfusion 3, realizing the location of tube for transfusion 3, the external screw thread 8 of bottom base 2 screws with the female thread 7 of upper spiral cover 1。The outer ring annular knurl of upper spiral cover 1 and bottom base 2, in order to rotate。Shift fork 4 endoporus 14 is enclosed within the straight pin 13 of bottom base 2, it is groove 6 in the middle of the fork section 12 of shift fork 4, fork section 12 one side and tube for transfusion 3 outer diameter contact, for strengthening the rigidity of shift fork 4 section of pitching 12 and saving the rotation space of shift fork 4, shift fork 4 end is designed as an oblique connection 11。

During device work, spiral cover 1 in rotation, the cylinder 5 of upper spiral cover 1 drives shift fork 4 to rotate around the straight pin 13 of bottom base 2, and owing to being off rotating, shift fork 4 section of pitching side 12 extrudes tube for transfusion 3, and so as to deform, it is achieved thereby that the adjustment of infusion flow。When needs reduce infusion flow, rotating clockwise spiral cover 1, the cylinder 5 of upper spiral cover 1 drives shift fork 4 to extrude tube for transfusion 3, it is achieved that the reduction of infusion flow；When needing the flow increasing transfusion, upper spiral cover 1 counterclockwise, the cylinder 5 of upper spiral cover 1 drives shift fork 4 to rotate, and reduces the extruding degree to tube for transfusion 3, thus improving infusion flow。

Claims

1. a squash type venous transfusion flow regulator, it is by upper spiral cover, bottom base, tube for transfusion, shift fork composition, it is characterized in that: the upper surface perforate of the tube for transfusion upper spiral cover of traverse and the end face mesopore of bottom base, upper spiral cover is internal protrudes a cylinder, this cylinder inserts the groove slidably of shift fork, a straight pin is protruded in the other side of bottom base end face mesopore, this straight pin plays the fixing shift fork effect of support, the other opposite side of bottom base end face mesopore has a boss, this boss side surfaces contacts with tube for transfusion, realize the location of tube for transfusion, shift fork inner hole sleeve is on the straight pin of bottom base, it is groove in the middle of the fork section of shift fork, fork section one side and tube for transfusion outer diameter contact, during device work, spiral cover in rotation, shift fork is driven to rotate around the straight pin of bottom base by the cylinder of upper spiral cover, under eccentric rotary effect, shift fork fork section side extruding tube for transfusion, and so as to deform, it is achieved thereby that the adjustment of infusion flow。