CN2068826U

CN2068826U - Negative pressure aspirator

Info

Publication number: CN2068826U
Application number: CN 90217237
Authority: CN
Inventors: 钟诚
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-06
Filing date: 1990-08-06
Publication date: 1991-01-09

Abstract

A negative pressure aspirator is a surgical instrument used by a veterinarian. The canister body of the negative pressure aspirator is two layers, the inner layer is a glass canister body, and the outer layer is a metal canister body The right end of the canister body is provided with an o-shaped sealed ring, the left end of the canister body is also provided with a sealed ring, and the canister body is also sheathed with a canister cover to form a closed container. A draw rod is arranged in the canister body, and the right end of the draw rod is provided with two rubber rings. A convex block outside the canister body is connected with a three-way pipe, the both ends of the three-way pipe are all mounted with one-way valves and connecting heads, and the one-way valves and the connecting heads are connected to an animal flushing position and a liquid-holding container. When the draw rod is moved from left to right, flushing liquid is sucked and is drained into the liquid-holding container. The utility model has simple structure, and reliable use, and medical treatment efficiency is obviously enhanced.

Description

Negative pressure aspirator

This utility model relates to a kind of negative pressure-pumping device, is the surgery medical instruments that a kind of veterinary uses.

In the clinic diagnosis of domestic animal, often can see, domestic animal is not good at owing to feeding and management, search for food accidentally, the food of eating poisonous foreign body by mistake or having searched for food in a large number and be difficult to digest, so that cause and poison or dyspepsia, at this moment topmost diagnosis and treatment measure is the flushing the intestines and stomach, in addition, domestic animal is owing to laparotomy or other abdominal operation are carried out in difficult labour, domestic animal (especially big domestic animal) also needs to wash the uterus and be inflamed with control puerperal, and the flushing in peritoneal irrigation and uterus just all is the diagnosis and treatment measure of using always.

Be used to wash gastrointestinal at present, the apparatus of the flushing of uterus and after abdominal cavity operation mainly contains two kinds:

The 1st kind is used rubber hose, the one end is a cecum, have aperture in a side near it, the flexible pipe other end opens wide and links to each other with the negative pressure-pumping device, the general glass syringe that adopts bulk container (100ML), also have and adopt crash tube as aspirator, its principle is similar to bicycle vapour tube, its major defect is that injector head is narrow and small, be easy to be stopped up by particulate matter and make extraction difficult, the shortcoming of using glass syringe or crash tube is that the liquid of suction can only be done unidirectional flowing, in case when being filled liquid in the device, need to interrupt aspiration procedure, continue suction after the evacuation of liquid again.In this external operating process,, and make operator shift position constantly, easily make the injector head breakage often because of animal disturbance uneasiness, the quantity of using crash tube suction can not observe drawing liquid intuitively, crash tube is easy to corrosion, can not be durable in use.

Second kind of negative suction system commonly used, be to adopt jumbo wide mouthful of vial (1000～2000ML), bottleneck is stamped a big rubber stopper, settle above the plug two root rubber flexible pipes with bottle in communicate, the effect of one flexible pipe is identical with first kind of aspirator, beyond one of another root flexible pipe end is connected in the wide mouthful of vial, the other end connects a goose egg shape ball, and installs a check valve on ball, by the extruding ball, make air discharge generation negative pressure in the vial, the negative pressure that this device produces is limited, usually can not adapt to actual needs, and especially vial is big and heavy, operation inconvenience is easy to breakage when carrying.

The purpose of this utility model is that a kind of negative suction system will be provided, and it can overcome above-mentioned shortcoming, and simple in structure, uses reliable.

The purpose of this utility model realizes in this wise, metal cylinder of suit again outside the aspirator cylindrical shell of glass, sealing ring is equipped with at two ends, the cylindrical shell right-hand member is connected with a projection, and projection connects a special-shaped t-bend pipe, and check valve and joint all are equipped with in the two ends in addition of threeway, in the tube the reciprocating pull bar in the left and right sides is arranged, the right-hand member of pull bar is equipped with two rubber rings, and its external diameter and cylindrical shell closely cooperate, no gap.

The sketch map of accompanying drawing 1, negative pressure-pumping device

Now in conjunction with the accompanying drawings the structure of aspirator is described in detail:

In the accompanying drawing, the cylindrical shell of aspirator (1) is the cylindrical shell of a garden cylindricality, make by glass material, the outside of cylindrical shell (1) is a metal cylinder of suit (7) again, between the right-hand member of the right-hand member of glass cylindrical shell (1) and metal cylinder (7), an O shape rubber seal ring is arranged, cylindrical shell (1,7) left end also is equipped with metallic packing ring, the outside is a cover of suit (8) again, the cylindrical shell of aspirator forms the cylindrical shell of a good seal like this, the right-hand member of cylindrical shell (7) stretches out a projection (3), this projection (3) is with the special-shaped t-bend pipe (4) that is threaded, angle the best of bifurcated is 45 degree, with the vertical direction of projection, the right part of tee T (4) is equipped with a check valve (6), part at bifurcated equally also is equipped with a check valve (5), a pull bar (2) is housed in the cylindrical shell (1), there is screw thread the right part of pull bar, two rubber rings of right part suit (10), directly adapt within garden and the cylindrical shell (1) outside the ring, closely cooperate, the left part of pull bar stretches out cylindrical shell (1) outside, left end is equipped with handle (9), pull bar is carved with scale in the intravital part of tube, when about pull bar, moving back and forth, can determine its stroke size from scale, when pull bar is loaded onto rubber ring, twist pull bar simultaneously, two rings are close to mutually, external diameter is enlarged slightly, Gu and the edge of ring and cylindrical shell driving fit, no gap, make pressure guarantee scope at 0～250mmHg, and unlikely gas leakage, when pull bar is moved to the left, swabbing action takes place left in the right-hand member of tee T, enter in the tee T through check valve (6), valve this moment (5) cuts out, when pull bar moves right, valve (6) cuts out, and liquid is just discharged by valve (5).Profiled tee joint pipe (4) is made of copper, its advantage is that price is cheaper than rustless steel, be easy to processing, corrosion does not take place, all there is pipe joint (10,11) at the two ends of tee T, joint (10) is used to connect rubber hose, and flexible pipe can insert the position of animal body planted agent flushing, and another joint (11) is used to connect liquid holding bottle or contains liquid device (not expression on the figure).

Compared with prior art, the advantage of the utility model negative pressure aspirator is simple structure, uses two check valves that suction and Excretion alternately take place, and the sealing of this device is reliable, guarantees that negative pressure is in 0～250mmHg scope.

Claims

1, a kind of negative pressure-pumping device, form by check valve, cylindrical shell, pull bar, it is characterized in that cylindrical shell (1) is the garden column-shaped barrel of glass, the outside is suit one metal cylinder (7) again, 0 shape rubber seal ring is housed between its right-hand member, left end also has metallic packing ring and cover (8), the cylindrical shell right-hand member stretches out a projection (3), be connected with special-shaped t-bend pipe (4), check valve (5,6) and pipe joint all are equipped with in two ends, be equipped with in the cylindrical shell (1) and indicate graduated pull bar, its right-hand member is equipped with two rubber rings, and the pull bar left end stretches out outside the cylindrical shell.

2, aspirator according to claim 1 is characterized in that special-shaped t-bend pipe (4) is made of copper.