CN1317296A - Multifunctional pneumatic injector for animals - Google Patents

Abstract

A pneumatic mulfiunctional injector for animals features that the piston of said injector is driven by a driver using compressed air stored in the handle of injector as power source to do back and forth movement, so realizing injection operation, a connection unit is used to connect a remote injector for realizing remote injection, and a continuous injector is used for continuous injections. Its advantages include saving labour, multiple functions, and high safety and correctness.

Description

Multifunctional pneumatic injector for animals

Affiliated field: veterinary instruments

The veterinary has to the syringe that animal carries out drug administration by injection before this: all-glass syringe, Luer's syringe, plastic injector, continuous injector, transfusion device, dartlike weapon syringe.

All-glass syringe is made up of piston and trocar sheath.Time spent is inserted in piston in the trocar sheath.Utilize hand-power driven plunger liquid medicine injection, but need careful operation, be used for ear vein injection of pig and the injection of small test animal more because of quality is fragile.Advantage is that sterilization is convenient, and consumption is accurate, no leakage phenomenon.

Luer's syringe, it is a metal sleeve, its front end is a syringe nozzle, for connecting syringe needle usefulness, shell is one to have the metal sleeve of slotted hole, and interior dress is the glass tubing of size suitably, the connection part of glass tubing front and back end and syringe nozzle and sleeve glass-tube fixed screw respectively is lined with an elastic tape, when tightening fixed screw, the glass tubing two ends get final product driving fit, and piston is that two ends respectively are made up of several layers of fixed elastic band of metal stator folder.Thereby the rotary-piston regulating handle can make elastic tape compress or loosen the size of regulating piston diameter, makes it to fit tightly with glass-tube.With the capacity regulating screw, be used for limiting institute's expense on the piston scale bar.Holding handle system points the fixedly position of syringe when injecting.Luer's syringe is mainly used under the animal skins, intramuscular injection, is to use maximum syringes, and being characterized in adopting metal sleeve is shell, can protect glass-tube not broken, fastening durable because of falling effectively; Its shortcoming has; The compensating roller difficulty of piston causes leakage easily, so that consumption is inaccurate, distance when being filled medicinal liquid between holding handle and the piston regulating handle is excessive, some point short, and the operator that strength is little is difficult to control, and often cause syringe needle to fracture because of the animal disturbance or syringe drops.

The similar Luer's syringe of continuous injector, different is that a spring assembly is arranged in the handle.Every injection once, handle restores automatically, and sucks medicinal liquid simultaneously to glass tubing, so can do continuous injection, is used for low dose of protective inoculation more.

Dartlike weapon syringe its shape resembles pistol, in spring assembly is housed, the plastic injector that will be similar to the dartlike weapon sample by the compression spring during use ejects and thrusts the injection site, only is used for the anesthesia of violent animal, can not carry out the injection of heavy dose of common drug.

Transfusion device is continued to use the human transfusion device, is used for the usefulness of the infusion solutions of big-and-middle animal.

" the YZX-5 disposable sterilized syringe that also had announce in 1991, seal, dress, bag production line " said a kind of minimum gas that utilizes electrolyte to produce promotes the plastic injector that the pin heart injects medium human body, be only limited to disposable use, its objective is the probability of cross infection when reducing clinical treatment, solve the time-consuming problem in the injection process, drawing medicinal liquid also needs to finish with hands.When treating, veterinary clinic do not have use value.Retrieval on March 18th, 2000 does not find with the Compressed Gas to be power through Wuzhou, Guangxi patent institute, realizes the record data of the multi-functional veterinary syringe of imbibition, fluid injection process by driving device push-and-pull syringe piston.

Animal does not have the consciousness of receiving treatment, slight stimulation also can cause violent disturbance, when syringe needle thrusts skin, if the operator is displacement that can not follower and change direction, can cause that then syringe needle fractures, syringe needle is stayed intramuscular, or syringe falls fragmentation, so that injection is given up midway, resembles cattle, horse, dog, cat, the responsive domestic animal of sow and so in puerperal and those violent wild animals thereof also can bring danger to the people, often the state of an illness nearly by mistake because not finishing injection, so develop and a kind ofly conveniently control, can arbitrarily change direction, adapt to the syringe of displacement, be vast veterinary work person's eager needs.Though and all-glass syringe consumption in the past is accurate, need not the regulating piston degree of tightness, but quality is fragile broken easily; Though Luer's syringe has overcome this shortcoming, but need regulating piston, leak easily, and control difficulty; The dartlike weapon syringe is only limited to the anesthesia of wild animal; Plastic injector for temporary use can't be applied in the veterinary clinic because inject time is long; Therefore develop a kind of laborsavingly, safe, accurate, of many uses and sturdy and durable, the syringe that particularly is suitable for the injection of disturbance animal is exactly a purpose of the present invention.

Injection is divided into imbibition and two processes of fluid injection, imbibition is with in the medicinal liquid inhalation syringe tube chamber, fluid injection is medicinal liquid to be discharged tube chamber inject in the animal body, according to this requirement, design a handle (1) that is easy to control and grasp direction, an air compression storage device (2) that power can be provided is set on this handle, driving device (3), all-glass syringe (4), and connecting device (5), its operation principle is: the Compressed Gas with air compression storage device (2) is a power, by the reciprocating motion of the piston on driving device (3) the sliding glass syringe (4), finish the process of imbibition and fluid injection, realize the purpose of laborsaving injection; Design a remote injection device (6), be connected on the connecting device (5) when needing to use, launch the syringe needle that has catheter, thrust disturbance animal injection site, realize the purpose of remote injection with air compression storage device (2) Compressed Gas; Design a continuous injecting apparatus (7), be connected when needing on the connecting device (5), realize the purpose of injection continuously.

Brief Description Of Drawings:

Fig. 1, handle (1) and be installed in member sketch map on the handle (1);

Fig. 2, air valve one (15) structural representation;

Fig. 3, remote injection device (6) structural representation;

Fig. 4, continuous injecting apparatus (7) structural representation.

Fig. 1, handle (1) and be installed in member sketch map on the handle (1):

The handle of handgun shape (1) is provided with air compression storage device (2), driving device (3), glass syringe (4), connecting device (5).

Air compressor units apparatus for converting (2) is by shown in Fig. 1: pump handle (8), back-moving spring (9), cylinder head (10), inflation cylinder (11), inflation piston (12), non-return gas weir (13), air reservoir (14) are formed; The requirement of withstand voltage of air reservoir reaches more than the 2.5Mpa, volume 60-80 cubic centimetre.The operator fiddles with pump handle (8) to air reservoir (14) inflation, is that injection process is prepared power.

Driving device (3) is by shown in Fig. 1: air valve one (15), air valve two (16), air duct (17), transmission cylinder proparea (18), transmission cylinder back zone (19), drive piston (20), shackle rod (21), preceding sealing ring (22), back sealing ring (23), consumption restriction screw rod (24), consumption restriction nut (25), form as leather sheath pad (26), pressure-air (27) connector.

All-glass syringe (4) is installed in the top of handle (1), form by (28) piston shown in Fig. 1 and (30) sleeve, piston (28) is connected on the rubber sleeve gasket (26) of starting drive (3), sleeve (30) is with on the fixed handle of hold-down screw (29) (1), and sleeve (30) front end connects connecting device (5).

Connecting device (5) is by the syringe needle connecting bolt (31) among Fig. 1, and hold-down nut (32) constitutes, and connects syringe needle during conventional the injection, connects remote injection device (6) when injecting at a distance, connects continuous injecting apparatus (7) when injecting continuously.

Fig. 2, air valve one (15) structural representation:

The structure of air valve one (15) has a, b, c, d, six apertures of e, f as shown in Figure 2 on same section of valve hinges; Wherein d, f, e form threeway by the rotating shaft center of circle.It is the break-make between decision air reservoir and transmission cylinder proparea, transmission cylinder back zone (i.e. (14) (18) (19) shown in the figure one) three; A, b, three apertures of c communicate with the external world respectively, are decision transmission cylinder proparea, transmission cylinder back zone ((18) (19) among the figure one) and extraneous break-make; On the air valve handle, automatic-reset spring is installed, and when the air valve handle was in 0, transmission cylinder proparea (18), transmission cylinder back zone (19) communicated by two apertures of a, c and the external world respectively, two intervals do not have pressure differential, and drive piston (20) remains static; When the air valve handle rotates 45 forward when spending, the gases at high pressure of air reservoir (14) flow into transmission cylinder proparea (18) through f, d, and drive piston (20) move backward, and the gas of transmission cylinder back zone this moment (19) flows out the external world from the b aperture; The gases at high pressure of air reservoir when the air valve handle rotates miter angle backward (14) enter transmission cylinder back zone (19) through e, f, promote drive piston (20) and travel forward, and the gas in transmission cylinder proparea (18) flows out extraneous from the b aperture; Air valve two (16) is a three-way air valve, air valve one (15) and transmission rainbow proparea (18) is communicated with when not using remote injection device (6) always.The travelling forward of air valve handle by air valve one (15), motion, immobilized three states backward like this; And then by shackle rod (21) realized equally glass syringe (4) piston backward, forward, static three kinds of states, satisfied the condition that must arbitrarily advance in the injection process, arbitrarily stop; Utilize Compressed Gas to be power, finally realized reaching the purpose of syringe job requirement.

Fig. 3, remote injection device (6): form (38) by sleeve shown in Figure 3 (33), interface (34), catheter (35), plastic spike (36), pressure-air connection tube (37), foresight;

During use it is connected on the connecting device (5), the pressure-air connection tube is connected on the pressure-air connector (27) among the figure one, earlier air valve two ((16) among the figure one) is rotated an angle of 90 degrees forward.The plastic spike (36) of utilizing the gases at high pressure of air reservoir ((15) among the figure one) will have catheter (35) ejects thrusts the injection site, realizes the purpose of remote injection.

Fig. 4, continuous injecting apparatus (7): by sleeve 39, interface 40, syringe needle joint 41, medicinal liquid bottle connect takes over (42), non-return weir one (43), non-return weir two (44), back-moving spring composition (45);

During use it is connected on the connecting device (5), back-moving spring (45) is installed between the piston and sleeve of glass syringe (4) (i.e. (28) (30) among the figure one), the adjusting amount of having restriction nut (22) is (25) among Fig. 1, air valve one i.e. ((15) among Fig. 1), inject at once when rotating miter angle backward; When air valve one resetted, under the effect of back-moving spring (45), the medicinal liquid bottle liquid medicine reentered in the tube chamber of all-glass syringe (24), has back and forth realized the purpose of continuous injection so back and forth.

The multifunctional pneumatic injector for animals coloured silk is being power in order to Compressed Gas, drive the all-glass syringe reciprocating motion of the pistons and realize the process of imbibition and fluid injection, syringe was compared the change that character has taken place at active force in form in the past, has significant technological progress, " YZX-5 disposable sterilized syringe, seal, dress, the bag production line " said " YZX-5 disposable sterilized injector " compared tangible difference, its main purpose is for realizing the aseptic requirement of syringe, the minimum gas that utilizes electrolyte to produce promotes the pin heart medicinal liquid is slowly discharged, the imbibition process is still needed and is manually finished, the gas motive force is small and weak, can't satisfy veterinary clinic injection require in needs rapid, accurately, at any time carry out, at any time the requirement that stops, on dealing with problems, do not have similarity, can not be applied in the veterinary clinic treatment; Compare with Luer's syringe, when the present invention had overcome Luer's syringe and is filled medicinal liquid, distance was excessive between holding handle and the piston handle, is difficult for controlling the not shortcoming of malleable direction; Regulate the shortcoming that medicinal liquid flows backwards when unreasonable with piston; Adopted the pistol-shaped handle to be easier to control and change direction, prevented in the injection process that syringe needle fractures and syringe drops with imitating more, finished suction, fluid injection process by pulling air valve one starting handle, feasible freely laborsaving more; Realized remote injection by connecting remote injection joint to violent animal disturbance animal; Realized continuous injection by connecting continuous injection joint; Thereby overcome the single shortcoming of syringe purposes in the past, realized the polyenergic purpose of a device, and reduced manufacturing cost effectively.

According to the pattern of handle shown in Fig. 1 (1), select fine aluminum alloy die cast handle (1) for use, wide 18 centimetres if make 20 milliliters syringe long 20 centimetres of handle then, thick 2.6 centimetres.Die casting is if select punching block for use, one-shot forming, cost is minimum, the circular groove of 20 millimeters of diameters is left in the handle top, be used for installing glass syringe (4), the front end of groove gets out the hole of 1.2 centimetres of diameters, and the installing and connecting apparatus of usefulness (5), the last drill with ferrule of groove 4 millimeters the aperture in footpath always play thread in order to install and fix screw (29).5 millimeters places get out 6 millimeters of diameters below the outer rim of groove is taken back, dark 10 centimetres slotted hole, loose slot as consumption restriction screw rod (among Fig. 1 (24)), drill through the slotted hole of 16 millimeters of diameters at 18 millimeters places under the groove outer rim, with as the transmission cylinder (before being Fig. 1 transmission cylinder, back zone (18) (19)), hole wall polishes, and is beneficial to drive piston (20) sliding in cylinder, long 10 centimetres of slotted hole, located inwardly respectively to bore 18 millimeters of diameters for 2 millimeters at two ends, front and back inlet, wide 10 millimeters interior hole is used for installing front and back sealing rings ((22) (23) among Fig. 1), sealing ring is made with rubber, 18.5 millimeters of external diameters, 5.8 millimeters of internal diameters, long 10 millimeters.Below handle, get out two apertures perpendicular to the transmission cylinder with 1.2 millimeters drill bits, handing-over is at front and back sealing ring hole inner edge, outer end closure.Getting out along its parallel direction from 10 millimeters places of transmission cylinder outer rim.1.5 the slotted hole of mm dia, front end is as pressure-air connector (among Fig. 1 (27)), rear end handing-over air reservoir (being (14) among Fig. 1), as air duct, must be on the same longitudinal section with transmission cylinder, air reservoir at individual aperture more than requiring, can not bore partially, the cross point of boring is respectively as air valve one, air valve two, (among Fig. 1 (15)) (16)) the center of circle of rotating shaft.The casing wall of air reservoir (14) can tolerate 2.5MPA pressure more than 4 millimeters, and the bottom of air reservoir stays one to open front, 20 centimetres of bores play the microgroove thread, in order to inflation cylinder (11) to be installed, the inflation cylinder is used long 40 millimeters, 16 millimeters of internal diameters, and the copper sheathing of 20 millimeters bottom sealings of external diameter is made, the outer microgroove thread that rises, inwall polishes, and an aperture is bored in the bottom, in outer rim the non-return gas weir (13) that rubber is done is installed, mix corresponding cylinder head (10) back-moving spring (9) again, pump handle (8).With one long 19 centimetres, the high strength round steel that diameter is 6 millimeters is fixed on thick 2 centimetres, and is long 4 centimetres, on the wide 2.6 centimetres aluminium sheet, on the aluminium sheet corresponding site boring fixedly consumption limit screw rod (24), at piston (28), select the glass syringe of 20 milliliters for use with respect to glass syringe (4).

Connecting device (5), with 10 millimeters of diameters, long 5 centimetres stainless steel bolt gets out the circular hole of 2 millimeters of diameters therebetween, and an end enlarges with glass syringe syringe needle joint identical, one end mill is little and needle hub identical, and the nut of mixing 10 millimeters bores is as hold-down nut (32).

Remote injection device (6), as shown in Figure 3, with 20 millimeters of external diameters, 15 millimeters of internal diameters, long 30 centimetres stainless steel tube is as sleeve (33), boring light in the sleeve, the syringe needle connecting bolt (31) that interface (34) plays thread and connecting device (5) matches, long 2 meters with one, 2 millimeters of internal diameters, the plastic tube that external diameter is 3 millimeters bends to helical form as catheter (35) with it, the rear end expansion, make it to be enclosed within on the interface of connecting device (5), front end connects the plastic spike (36) of 15 millimeters of external diameters, at the 400 meters metallic sheaths of going up welding one 2 centimeter length in the rear end of sleeve (33), as connecting high air connection tube (37) usefulness, the pressure-air connection tube replaces with the plastic tube that can tolerate 2.5M.pa pressure.

Continuous injecting apparatus (7), according to pattern shown in Figure 4, stainless round steel with 2 centimetres of diameters is made sleeve (39), the middle aperture that bores 1.2 millimeters of diameters, the front end car becomes coniform and needle hub coincide, 15 millimeters of rear end car diameters, dark 3 centimetres of circular holes, the connecting bolt kissing that plays 15 centimetres of dark thread connecting devices (5) is combined into adorns one with the thromboembolism of sheet rubber as non-return weir one (43) in interface (40) circular hole; In that 2 centimeters welding endoporus is the tubule of calabash shape from the rear end, interior dress ball is as non-return weir two (44).Be about 0.5 meter with one, 4 millimeters of external diameters, the plastic tube that internal diameter is 3 millimeters is made medicinal liquid bottle connection tube (42), with 2.5 centimetres of internal diameters, 3 centimetres of external diameters, long 8 centimetres, the spring that the elasticity that the journey that contracts is 5 centimetres suits is enclosed within during use between the sleeve and piston of all-glass syringe (4) as back-moving spring (45).

Claims (2)

1, a kind of veterinary of being used for carries out the beastly syringe of multifunctional pneumatic of drug administration by injection to animal, is made up of handle (1), the air compression storage device (2), driving device (3), glass syringe (4), connecting device (5), remote injection device (6), the continuous injecting apparatus (7) that are installed on the handle (1):

It is characterized in that: utilizing the gases at high pressure of the air compression storage device (2) that is installed on the handle (1) is power, finish the process of fluid injection and imbibition by the seesawing of piston that driving device (3) promotes in the all-glass syringe (4), having realized finishing to pneumatic that the pro forma character of active force changes in imbibition, this injection overall process of fluid injection by manually finishing imbibition, fluid injection, is that the veterinary syringe of syringe is in the past distinguished in strictness;

2, multifunctional pneumatic injector for animals according to claim 1, it is characterized in that: connect remote injection device (6) by connecting device (5), the plastic spike of utilizing the gases at high pressure emission band of air compression storage device (2) catheter is thrust the injection site, realizes the purpose to remote animal injection.

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