JPS5894849A - Applicator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an allaplicator, and more particularly to an allaplicator suitable for administering properties requiring injection, such as vaccines.

The invention is particularly suitable for vaccinating animals such as sheep, cattle, pigs and the like. However, the invention is equally suitable for injecting substances such as vaccines into humans.

Throughout the text and claims, the term "substance to be applied" is understood to be used to include vaccines, liquid proboscises, and other substances that require application by injection. I should.

Up to this point, many problems have been associated with applying substances by injection, particularly in sheep, for example.

Problems have arisen in the field of injections into animals such as cattle and pigs.

In the devices provided up to this point, the needle or device for applying the substance is often exposed.

This is dangerous from the point of view of the user of the allaplicator, and also from the point of view of the person or animal being injected. Because the needles are exposed, these needles have often been broken off before, during, or after use. Therefore, this is generally ineffective and in some cases not only costly, but also creates infection and anxiety.

1. Concerning the allapplicators used up to this point, it is often necessary to keep the open animal quiet while injecting the vaccine, and this is difficult in practice.
It was also a problem. For example, until now, it has been necessary to restrain the animal, then position the needle in the correct or desired position, then advance the needle into the animal's body, and then actuate a suitable device (e.g., depressing a plunger). It was often necessary to inject the substance to be removed into the animal's body through a needle.

This was difficult, tedious and time consuming.

The present invention seeks to provide an allapplicator which overcomes or at least minimizes these problems and provides a direct and effective allapplicator for applying substances such as vaccines.

According to one aspect of the invention, an allaplicator includes an allaplicator head having a chamber and a needle, the needle being at least partially provided by a rostral projection that is movable axially with respect to the needle. at least one valve is arranged between said chamber and said needle; intended axial movement of said proboscis with respect to said needle opens and applies said valve device; An allaplicator is provided in which the proboscis is mounted relative to the chamber and the needle such that the substance to be treated is passed from the chamber through the needle.

According to yet another aspect of the invention, an allaplicator includes a reservoir and an allapplicator head having a chamber and a needle, the needle having a rostral projection capable of axial movement with respect to the needle. a valve device is provided between the chamber and the needle; a further valve device is provided between the reservoir and the chamber; a trigger device is provided; Actuation of the trigger device causes the substance to be applied from the reservoir to enter the chamber, and the proboscis is brought into contact with the chamber by a predetermined axial movement of the proboscis relative to the needle. An allaplicator is provided which is mounted relative to the chamber and the needle such that the valve device of the chamber is opened and the substance to be applied is allowed to pass from the chamber through the needle.

The present invention will be described in detail below with reference to the southern drawings.

In one preferred embodiment of the invention, an allapplicator is provided for applying substances, such as vaccines, to animals.

The allaplicator of the invention includes a reservoir 1 for vaccines;
The head members 2 and - are mounted flush against each other in a substantially sealed arrangement. Preferably, the head member 2 and the vaccine reservoir 1, which are rigidly attached to each other, are formed of plastic material and are preferably disposable, with the amount of vaccine provided in the reservoir 1 being utilized. Later on, this jointed or assembled head member and reservoir can be disposed of and replaced.

a suitable housing 5 (FIG. 4 of the accompanying drawings) for positioning the head member 2 and the reservoir 1 in substantially releasable engagement;
is provided and discussed below.

The head member 2 comprises a needle or other injection member having a through-bore cavity for passing the substance to be applied, this member being referred to below as a “needle”. The elongated needle 3 is positioned within a suitable guide and mount 4 and is secured by a protective housing, sheath or stub 6 such as a housing or stub (hereinafter referred to as ``snout''). S is included.

In the form of the invention illustrated in the accompanying drawings, said rostrum is substantially elongated, conical and tapering in shape, opening at the tip of the needle 3 and extending with respect to the longitudinal axis of the needle 3. The head member is positioned for axial movement.

The proboscis 6 covers substantially the entire length of the needle 3 when not in use.

The head member 2 also has a vaccine chamber 8 which communicates with the needle 3 via a valve device 10. Valve device 10 is positioned within head member 2 substantially midway between chamber 8 and needle 3.

The valve 10 between the needle 3 and the chamber 8 is connected to the valve plate 12 and the valve seat.
The ring 13 is adapted to be sealed and includes a 90-shaped ring 13. Arm-like valve actuating device 1 with a button 15a at the end
5 extends outwardly from the valve plate 12 inwardly of the proboscis-shaped projection 6 .

The proboscis-like protrusion 6 has a valve actuation part or device 6a of this protrusion.
An internal hem portion is formed.

When the proboscis 6 is in the rest position substantially covering said needle, the valve actuation device 6a of the proboscis and the valve actuation device 15 associated with the valve 10 are spaced from each other. .

Movement of the proboscis 6 with respect to the needle 3 causes the valve actuation device 6a of said proboscis to be moved towards the valve actuation device 15 of the valve 12, thereby causing the valve 12 of the chamber 8 and the needle 3 to move.
is opened, thus allowing substance to pass from chamber 8 through needle 3.

The position and spacing of the proboscis relative to the needle and chamber are varied as required for the proboscis to move before the valve between the chamber and needle is actuated. You can change the distance. This therefore determines the amount of needle exposed by the actual movement of the proboscis, and thus the depth to which the needle penetrates the skin of the animal.

It will be appreciated that the required depth or amount of needle penetration can be varied or determined in this manner. Therefore, the axial movement of the proboscis 6 will cause the chamber 8 to move between the chamber 8 and the needle 3 until the predetermined amount of the needle 3 is exposed, i.e. until the needle penetrates the skin of the animal to the desired depth. It will not activate the valve (and thus inject a single dose of vaccine).

Injection of the vaccine is therefore prevented if it is not possible to penetrate the needle to the correct depth, taking into account, for example, bone striking, or if the syringe or needle is placed against a resisting surface.

Chamber 8 is designed to hold a single dose of vaccine for injection into the animal through needle 3.

The axial movement of the proboscis 6 with respect to the needle 3, preferably spring-loaded, allows said proboscis-like protrusion to move against the force of the spring towards the chamber 8, with the result that The valve actuating device 6a of the proboscis 6 comes into contact with the valve actuating device 15 of the valve 12 between the chamber 8 and the needle 3. Therefore, the valve 10 and the type 0 ring 13 are spaced apart from the valve seat, so that the chamber 8 is in communication with the needle 3. Thus, one dose of vaccine is expelled through the tube 8 through the needle 3 into the animal's body.

Preferably, the storage tank 1 and the bed member 2 are connected in a permanently sealed relationship and a passage device 8a is preferably provided for connecting the chamber 8 with the storage tank 1.

Preferably, a feed tube 11 leads into the interior of the reservoir 1 and is connected to the outlet and valve 1a as well as to the upper end of said reservoir, said upper end being connected to the v chamber 8 by a passage 8b.

The valve 1a between the storage tank 1 and the chamber 8 is preferably a check valve.

! ! 8, one wall 8a is formed as a movable or flexible wall. The wall may be in the form of a flexible diaphragm, a piston or a ram, by way of example only.

Preferably, the 1iaa is in the form of a flexible diaphragm, preferably constructed of a flexible plastic material, capable of moving in and out of the m8, and sealed. Preferably, the chamber 8 is sealed so as to form a flexible wall.

Actuating device 26 on which the movable wall 8tL is pressed by a spring
The actuating device 26 is coupled to or forming said device, but the actuating device 26 moves the flexible diaphragm 8I! into a position where the flexible diaphragm 8A extends inwardly into the flexible diaphragm 8I! Lt - pressed to extend. A first actuating member 26a is connected to the back side of the diaphragm 8a and a second actuating member 26a is connected to the back side of the diaphragm 8a.
It can be releasably engaged with b and can be positioned with this member. The second actuating member 26b also provides the previously cited spring bias when the first and second actuating members 26a and 26b are interconnected.

However, the flexible diaphragm 8a4t is pressed into a position in which the flexible diaphragm extends inwardly of the chamber 8.

As will be described later, upon actuation of the actuating device 26, the flexible diaphragm 8a is pulled out of the chamber 8 against the force of the actuating spring 27, thereby causing the jump between the reservoir 1 and the head member 2. When the check valve 1a is pulled upward, the guide 1
b and at the same time suck up the vaccine from inside the reservoir.

Next, by the outward movement of the diaphragm 8a, one dose of vaccine is drawn up into the chamber, and when the one dose of vaccine enters the chamber, the pressure of the vaccine prevents the leap between the storage tank 1 and the head member 2. Valve 1a is pushed back downwards into the closed position and is thus closed, sealing the dose of vaccine within chamber 8.

A dose of vaccine is thus kept under pressure in the chamber 8 between the closed valves 1a and 10, i.e. the dialer 2
Pressure is applied from a spring-loaded actuator 26 and a flexible diaphragm 8a, which presses inwardly into the MoSat chamber 8.

For use, one dose of vaccine was loaded into chamber 8 (
e.g. as previously mentioned) after the proboscis 6
is placed against the animal at the desired location and downward pressure is applied to the head member 2 by the operator. The proboscis 6 is thereby moved axially with respect to the needle 3 against the force of the proboscis spring, e.g. The actuating device 15 of the valve 10 is brought into contact and this pressure opens the valve 10 between the chamber 8 and the needle 3. Opening of this valve 10 forces the dose of vaccine out of the Wi8, and with a certain horizontal force assisted by the spring-loaded flexible diaphragm 8a, the dose of vaccine in chamber 8 is forced out of the needle from chamber 8. 3 and is discharged.

According to the invention, the head member 2 and the reservoir 1 can be releasably positioned within the nouji puffer 5, and the housing 5 includes a trigger device and a chamber 8 for storing a single dose of vaccine.
An actuation device is also provided for loading into the container. The housing 5 also includes a handle grip for use by the operator and a counting mechanism that allows the operator to count the number of shots made by the allapplicator.

In Figure 4 of the accompanying drawings, the housing 5 is shown as incorporating an upper body portion 30, and the forward upper body portion 31 is adapted to releasably position the head member 2 within a suitable support and lug. It is being done. The front side 32 is openably and closably attached to the upper body portion 30 in a weave manner, and is open for positioning the head member and extends over and around (and for positioning) the head member 2 in a predetermined position. ) has been allowed to be closed. Suitable releasable fastening devices, such as fasteners, bolts, clips and the like, may be provided for opening and closing of the bolt 32 in front of said housing. In another form of the invention, said housing can be provided with an upper portion 11 mounted pivotably or **openably for positioning and removing said head member. However, these are merely examples, and other variations are contemplated.

The rear upper body portion 33 positions the actuating device 26 (cited earlier) and will be further described below.

The rear upper body portion 33 extends downwardly into a nine-knob needle portion 34 which defines a grip aperture 34a within which a trigger device 35 is pivotally positioned.

The housing further includes a lower body support member;
This member is below, spaced from, and substantially parallel to the front upper body portion 31, defining a spacing therebetween and allowing the reservoir to be positioned within said spacing.

Suitable slots or recesses may be provided in the lower surface of the support member 36 in which the vertical portion 1C of the reservoir 1 can be positioned.

Further, referring to FIGS. 2 and 6 of the accompanying drawings, these figures illustrate the operation of the allaplicator and the trigger mechanism as positioned within the housing 5.

Figure 2 of the accompanying drawings shows the trigger and actuation mechanism in the position where the diaphragm 8a of the chamber 8 is retracted and a dose of vaccine is within the chamber 8. This position is needle 3
This is the position prior to the movement of the proboscis-like protrusion 6 relative to the needle 3, and thus the opening of the valve 1θ between the diaphragm 8 and the needle 3.

FIG. 6 of the accompanying drawings shows the bird and the actuating mechanism in a position prior to the loading of a dose of vaccine into the chamber 8, and in this position the diaphragm 8a is pressed by the spring of the actuating device 26. is shown in a relaxed position extending into the interior of the chamber 8 in response to compression of the chamber 8.

The actuating device 26 positioned within said housing incorporates an actuating member 26b positioned within the rear part 33 of the housing 5.

An actuating spring 2T is arranged around the actuating member 26b and inside the spring guide 41 in order to press the actuating member 26b outwardly of the housing 5 and towards N8.

The actuating member 26a is adjacent to the slot end 26 of the actuating member 26b.
a suitable connecting head 26 for releasably connecting to
It has 0. Thus, with the positioning of the head member 2 and therefore the reservoir 1 within the housing 5, the actuating member 26
& and 26b are releasably engaged with each other.

A trigger 35 is provided and mounted for pivoting rearwardly within the grip opening 345L of the handle 34 in the direction of arrow A shown in the accompanying drawings.

The bird -35 is pivotally connected at its upper end to a nine crank lever 48, and said crank lever is further connected to another pivot lever 49;
This pivot lever engages the lower part of the crank lever 4B in its rest position, for example as shown in FIG. 6 of the accompanying drawings. The trigger spring 50 is I-+)if
- 35 and the inner surface of the housing 5, this bird - and the diaphragm 8a is inside the chamber 8;
to the position as shown in Figure llN3 of the accompanying drawings;
Press.

Counting mechanism 54 with an actuating knot or protrusion 55
is provided and also includes a dial at the rear of the housing, which dial is covered with a suitable glass or perspex so as to be visible from the outside of the housing. A dial is provided which can indicate the number of shots fired by the applicator and is visible through the glass or Perspex. This counting mechanism 54 is such that upon movement or actuation of the lug 55, the kakuunta is advanced by one digit, thus maintaining a clear indication of the number of shots.

Referring now to Figure 5 of the accompanying drawings, the trigger 35 is shown in a rest position such that depression of the trigger causes rearward movement of the crank lever 48 which is pivotally connected to the trigger. It will be done. The crank lever 4B is connected to the abutting end of the actuating member 26b, so that with a -35 movement or depression of the bird and a movement of the crank lever 48, the pushing of the spring 2T passing around the actuating member 26b is opposed to the force. actuator 26 from said chamber, thereby causing diaphragm 8a to
pulled outward. As mentioned above, this opens the valve 1a between reservoir 1 and chamber 8 and releases one dose of vaccine for injection! Sucked into i8. A full press of the trigger causes the crank lever 48 and the additional lever part 49 to be decoupled, as shown in FIG. separated from the operation.

2 and 6 of the accompanying drawings, link arm 4
8 is formed with a substantially flexible hook member or portion 48b in its lower portion.

The trigger 35 is pivotally mounted on a pivot lever 49 having two arms 49a and 49b connected to each other. The lever 49 is pivotally mounted substantially about its midpoint 49f and has a substantially bifurcated or V-shaped configuration.

Free movement or rotation of pivot lever 49 is prevented by pivot control stops or pins 49C and 49d which allow pivot movement of pivot pin 49 but limit the movement to prevent free rotation.

The lever 49 is connected to the lower control pin 49.
It is pressed by a spring to the position where it is pushed towards d.

The handle 35 is provided with an elongated slot 35b and a control pin 49d extends through the slot. Slot 35b therefore allows movement of the bird relative to control pin 49d.

An upper control bin 490 is mounted on and integral with the bird.

Next, in FIG. 2 of the accompanying drawings, when the bird -35 is pushed backward in the direction of the arrow in FIG. 2 of the accompanying drawings, the engaged arm 49 & and the hook 48b of the crank arm The arm 48 is moved rearwardly until the hook 48& is in contact with the rear wall of the housing and in particular with the abutment 75 on the rear wall of the housing. Accordingly, the shift flank arm 48 and the pivot lever 49 are separated from each other. With this push down of -35,
The push pot lever 49 and the connected crank arm 48 pull the actuating member 26 backward against the force of the spring 27, and the movable *ti of the chamber 8 is moved by the diaphragm 8a.
is moved backwards, whereby the dose of substance to be injected is sucked into chamber 8.

When the pot lever 49 and the crank arm 48 are decoupled from each other, the actuator 26 is free to dispense unrestrained, thus injecting regardless of the trigger position. This allows free and unrestrained movement of the actuating device 26 in order to dispense the desired dose of material.

Separation of the retention between the pivot lever 49 and the crank arm 48 ensures that the allapplicator is firmly gripped by the operator when it is loaded with a dose of vaccine and subsequently injected into the animal with said substance. The bird can be further depressed, such as when this applicator is grasped by an operator who wishes to hold it (including pushing the bird downward).

For example, when this allaplicator is applied to an animal to dispense a dose as previously described, and when the valve 10 between chamber 8 and needle 3 is opened, diaphragm 8a
The pressure of the actuating device 26, which is loaded with a spring against the valve 1o, assists in forcing the dose out of the chamber 8 upon opening of the valve 1o, so that the dose of vaccine passes through the needle and becomes effective. will be distributed to

Following the ejection of substance from the interior of the chamber, actuator 26
The crank arm 48 will then return to the position shown in FIG. 6 of the accompanying drawings, but the trigger will be absent and free from engagement with the crank arm 48 and still capable of being depressed.

When the bird is released, for example by an employee, this trigger will e.g.
It will then be returned to substantially the position shown in the accompanying drawings. Substantially flexible hook member 48b of crank arm 48 flexes and pivot lever 49 arm 495L
rests on the edge of the V! The bot arm 49 and the crank lever 48 are engaged with each other so that a further loading of the allaplicator takes place.

When the bird -35 is depressed and the crank lever 48 is pivoted to move the actuator 26 rearwardly, the working or camming surface of the crank lever 48 engages the actuating mechanism 54.
is moved toward the actuating protrusion 55, thus actuating the kakunto mechanism and indicating that 1@ worth of substance has been loaded and injected.

In the present invention, it is preferred that the head member 2 and the reservoir 1 are constructed from plastic materials so that they can be easily disposed of when desired. Preferably, but not necessarily, the housing is formed or molded from a suitable plastic material so that it is lightweight and easy to use and handle. But this is just one example.

In one form of the invention, chamber 8 may be provided with a relief or bleed valve or an opening. Preferably, this valve or opening is located on the top or top surface of i18. The bleed valve may be in the form of a hole or recess with a suitable closure or sluice cap. In a preferred form of the invention, this suitable closure or cap is connected to an adjacent portion of the head member by an integral strap. In use, it has been found that by applying pressure to the reservoir, for example in the form of a "squeeze", the substance to be injected is forced up through the vent and out of the bleed valve.

A particular advantage in this regard is that if this allaplicator is used, there will probably be some air in the reservoir before or during use. With the reservoir being squeezed as described above, air can be expelled from the reservoir via the bleed valve. The cap can thus be removed from the bleed valve in order to vent the air in this manner prior to use. The reservoir is then squeezed and air is forced out of the reservoir through the aeration valve. After the air has been purged from the reservoir (as when starting with liquid out of the bleed valve), the cap is reinstalled. Subsequently, the bleed valve is closed. It has been found that the provision of such a bleed valve and cap prevents or at least reduces the formation of air pockets within chamber 8, which in some cases could reduce the effectiveness and capability of the present invention. . Although the embodiments of the present invention have been described above by way of example only, it will be appreciated that improvements and changes may be made thereto without departing from the scope and spirit of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a side view of a configuration of an allaplicator head of one type of the present invention connected to an upper portion of a reservoir according to one type of the invention, and FIG. 2 is a schematic side view of a handle arrangement incorporating the head member. Fig. 6 is a side view with parts exposed, showing the chamber in a substantially filled state; Fig. 6 is a side view obtained with part of the allaplicator including the housing broken off, and emptied; FIG. 4 is a side view of a housing incorporating a head member and a reservoir according to one form of the present invention. DESCRIPTION OF SYMBOLS 1... Storage tank, 2... Head member, 3... Needle, 4...
...Guidance and mounting body, 5...c, Uzing, 6...
- Roast-shaped protrusion, 6a... Valve actuating portion, 8... Vaccine chamber, 10... Valve, 12... Valve plate, 13... 0 type ring, 15... Valve actuating device, 15a...button,
26... Actuating device pressed by a spring, 26 a
e 26 b...1l11 and second actuating member, 30.
...Upper body part, 31...Front upper body part, 3
3... Rear main body part.

Claims (9)

[Claims] (1) an allapplicator head having an allaplicator head and a needle, the needle being at least partially surrounded by a rostral projection capable of axial movement with respect to the needle; At least 1 at the threshold between the chamber and the needle
a valve is provided; a predetermined axial movement of the proboscis with respect to the needle causes the valve device to open and the substance to be applied to pass from the chamber through the needle; An allaplicator in which a protrusion is mounted with respect to the chamber and the needle. (2) an allaplicator comprising an allaplicator head having an axle, an axle and a needle, wherein said needle is at least partially provided by a proboscis-like projection capable of axial movement with respect to said needle; a valve device is provided between the chamber and the needle; a further valve device is provided between the reservoir and the chamber; a trigger device is provided; the substance to be applied with the needle is allowed to enter the chamber from the reservoir;
An allaplicator mounted with respect to the m chamber and the needle such that the valve device between the chamber and the needle is opened and the substance to be applied is allowed to pass from the chamber through the needle. (3) An allaplicator according to any one of claims 1 or 2, in which the proboscis-like projection includes a valve actuating device; the valve between the chamber and the needle; includes a valve actuating member; a proboscis valve actuator is arranged between the chamber and the needle such that axial deflection of the proboscis with respect to the needle causes the valve between the chamber and the needle to open. an allaplicator adapted to be brought into contact with the actuating member of the valve between the valves; (4) The allaplicator described in any one of Claims 2 and 6, wherein the valve between the storage tank and the chamber is a check valve. (5) In the allaplicator described in any one of claims 1 to 4,
Allaplicator, wherein said chamber comprises at least one movable wall. (6) An allaplicator according to claim 5, wherein the movable wall is in the form of a flexible diaphragm. (7) The allaplicator according to claim 5, wherein the movable wall is in the shape of a piston. (8) In the allaplicator according to any one of claims 5, 6, or 7, the actuating device moves the movable wall in and out of the chamber. an allapplicator connected to or formed with said wall for movement in said wall; (9) The allaplicator according to claim 8, wherein the actuating device is pressed by a spring so as to press the wall inwardly into the chamber. (Ll 1fII) An allaplicator as claimed in any one of claims 1 to 9, in which the bird is provided with a device and connected to at least one movable wall of the chamber. or it is connected by a link to an actuating device formed therewith; said actuating device causes said actuating device to move said wall outwardly of said chamber so that said actuating device draws a dose of substance to be used into said chamber in one actuation of said device; αυ The allapplicator according to claim 10, wherein the tri-I device is connected to the actuating device of the movable wall of the chamber by a lever device. a′jJ % ff An allapplicator as claimed in any one of claims 10 or 11, wherein the crank arm is connected to the end of the actuating device; the trigger device carries a pivot lever; said crank arm and pivot lever are lockable with each other such that when said trigger is depressed, said actuator causes said engaged pivot lever and crank arm to move said wall of said chamber; 13. An allapplicator adapted for outward movement. AS 4I The allapplicator of claim 12, wherein said pivot lever forms upper and lower arms, said pivot lever being adapted for said trigger device to substantially engage said trigger device. is pivotally mounted at the middle point; an allapplicator comprising pivot stops located adjacent to said upper and lower arms to prevent free rotation of said pivot lever. In an allapplicator as described in any one of the ranges 12 or 16, the crank arm has a flexible hook engageable with the upper arm of the pivot lever, which An allapplicator provided at an end portion. (c) In the allapplicator described in any one of claims 12 to 14, an abutment device is provided so that the bird is When pressed down, said engaged crank arm and pivot lever are pulled rearward into contact with said impingement device, and this contact causes said crank arm to be released from said pivot lever. αe % The allaplicator according to claim 15, further comprising a spring device for returning the trigger to a non-depressed position following separation of engagement between the crank arm and the pivot lever. Allaplicator. C1? ) An allaplicator as claimed in any one of claims 12 to 16, including a counting mechanism for indicating that each dose has been delivered; An allaplicator in which the counting mechanism comprises a display surface and an actuating lug which is actuated by contact with the two link arms during actuation of the device. An allapplicator according to any one of claims EI to 17, including a housing adapted to releasably position the allapplicator head and the reservoir; The housing includes an upper body portion and a lower body support member spaced therefrom; the rearward upper body portion communicates with a downwardly extending handle portion defining a grip opening; and the handle portion includes a trigger device within the grip opening. at least a portion of the upper body portion is adapted to releasably position the allaplicator head; the reservoir is mounted on the forward upper body portion and the spaced apart lower support. An allaplicator that can be releasably positioned between a member and a member. - The allaplicator of claim 21, wherein a first actuating device mounted on a movable wall of the chamber is releasably positionable within the upper body portion of the housing and provided within the housing. is connectable to a second actuating device which is pressed by a spring; said second actuating device causes said bird to move by a lever device;
coupled to a device; the arrangement is such that the positioning of the allaplicator head and reservoir within the housing and the coupling of the first and second actuating devices result in activation of the trigger device; , said lever device causes first and second actuating devices connected to each other to move against the force of the spring so as to pull said movable wall out of said chamber and close said reservoir and closure. an allaplicator which is adapted to open a valve device and draw a dose of the substance to be used from the reservoir into the chamber, into which chamber it is held under pressure from the actuating device pressed by the spring. (21$174F The allapplicator described in any one of claims 2 to 19, in which the allapplicator head and the storage tank are connected to each other in a sealed manner.QO In the allaplicator described in any one of claims 1 to 20,
An allaplicator in which a leader valve is formed or arranged in the upper wall of the chamber. Iwa. The allaplicator according to claim 21, wherein the Zoreader valve is provided with a replaceable cap or cover.