Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1997-06-30
1999-11-23
McDermott, Corrine
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 57, 604115, 604134, A61M 3100
Patent
active
059892145
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an apparatus for injecting the body of humans or animals with a pharmaceutical preparation, wherein the preparation is arranged in a rigid carrier, wherein the apparatus comprises: body.
Such an apparatus is known inter alia from WO-93/23110. Such an apparatus is furthermore known in another form from WO-91/12048.
In both cases of these known apparatus there is the danger of the injecting apparatus moving relative to the body during entry, at least at the place of entry of the carrier into the body, which can cause destruction of the carrier, excessive pain to the body for injecting and the danger of injection taking place at an incorrect location in the body.
SUMMARY OF THE INVENTION
The object of the present invention is to avoid the above stated problems.
This object is achieved in that the apparatus is provided with fixation means for fixing the end of the channel relative to the skin of the body for injecting.
As a result of these steps an adequate fixation takes place so that the above mentioned dangers are obviated.
According to a first embodiment the fixation means are adapted for clamping engagement on the skin.
According to a second embodiment the fixation means are formed by chamfered protrusions formed on the part adapted for contact with the skin of the body and extending substantially in the direction of the axis of the channel.
A preferred embodiment relates to an apparatus for injecting the body of humans or animals with a pharmaceutical preparation, wherein the preparation is arranged in a rigid carrier, wherein the apparatus comprises: is arranged which extends round the mouth of the barrel and which is adapted to direct the air flow preceding the carrier during discharging such that the air flow is guided at least partially along at least that part of the skin of the body for injecting where the carrier then enters the skin.
The danger is hereby avoided of contaminants possibly present on the skin being carried along with the carrier into the body and there causing infections or otherwise having an adverse effect. Also avoided is the danger, particularly when the carrier must be placed through a hirsute skin, of hairs also being carried in by the carrier and likewise having adverse effects.
According to another preferred embodiment the spacer element is adapted to hold the mouth of the barrel at a distance from the animal for injecting at least during discharging.
As a result of these steps the air flow preceding the carrier can escape between the barrel and the skin, whereby the required direction of the gas flow is obtained.
According to another preferred embodiment the spacer element is provided with recesses. Due to these recesses the gas flow escaping between the barrel and the skin can also pass through the spacer element without too many obstructions.
According to yet another preferred embodiment the spacer element is provided on its part adapted for conact with the animal with engaging means for preventing a movement of the spacer element in the direction perpendicularly of the axis of the barrel. This prevents so-called lateral slippage of the barrel whereby the position at which the carrier enters the body might be less reliably determined.
Other attractive preferred embodiments will be found in the remaining sub-claims.
BRIEF DESCRIPTION OF THE DRAWING
The present invention will be elucidated hereinbelow with reference to the annexed drawings, in which:
FIG. 1 shows a perspective view of an apparatus according to the invention;
FIG. 2 shows a perspective view of a holder for carriers for use with the apparatus according to the invention;
FIG. 3 shows a partly broken away perspective detail view according to arrow III in FIG. 1;
FIG. 4 shows a partly broken away perspective detail view according to arrow IV in FIG. 1;
FIG. 5 shows a partly broken away perspective detail view of the part shown in FIG. 4 from the other side;
FIG. 6 is a partly broken away perspective detail view of a variant of the mouthpiece shown in FI
REFERENCES:
patent: 3815605 (1974-06-01), Schmidt et al.
patent: 3859996 (1975-01-01), Mizzy
Gring Kent
McDermott Corrine
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