Syringe serving also as an ampule and associated equipment

Details Syringe serving also as an ampule and associated equipment Syringe serving also as an ampule and associated equipment

1998-03-04

2001-11-20

Seidel, Richard K. (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C604S212000

Reexamination Certificate

active

06319235

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a syringe serving also as an ampule and a syringe for collecting blood. In particular, the syringe has a bellows-like cylindrical portion and a pleats reinforcement fold, formed by melting, which make the bellows-like cylinder elastically smooth. The present invention also relates to a three-way cock which is applicable to above syringe.
Generally a conventional syringe
21
has the structure that a piston
23
is inserted within a cylinder
22
and a needle portion
24
is put in a tip shown in FIG.
7
. In the case of injecting a liquid medicine by this conventional syringe, a neck portion of an ampule including the liquid medicine shown in
FIG. 8
has to be cut with a file so that the needle of the syringe
21
sucks up the liquid medicine into the cylinder of the syringe by insertion within the ampule directly.
In this type of ampule enclosed plastics or a cork plug enclose the liquid medicine and the liquid medicine is sucked by inserting the needle of the syringe in the ampule.
At this time it is troublesome to cut the neck of the above ampule. Furthermore the sharp cut surface of the ampules often hurts fingers if it is made of glass. It is very dangerous because the glass ampule may be crushed by earthquake or other displacement force.
The type of ampule sealed by a plug has the problems of choking the needle of the syringe with cork and plastic resin scrap resulting from thrusting the syringe into the sealed cork. This increases infection into the body. The cork also dulls the needle which results in additional pain to a patient. Another problem is that the volume of cork or resin type ampule is large, and using the medicine at more than one occasion may yield infection.
Yet another problem resulting from various kinds of ampules is that when they are put into the syringe, mistakes of picking the ampules are likely to be made. In addition to the danger of injury results from the sharp cut surface of the ampule. And a large amount of empty ampules after use add to the social waste problem.
The problem has occurred in the waste of conventional syringes. Namely conventional syringes shown in
FIG. 7
cannot be smaller than the length X of the needle portion and the length Y of the cylinder and the piston end portion so that conventional syringes are bulky wastes.
SUMMARY OF THE INVENTION
The present invention is made in consideration with the above points at issue. The inventor has completed the present invention after a great deal of experiments and improvements to realize a syringe taking a smaller amount of room by uniting the conventional ampule and the syringe which cannot be shortened into one.
This invention discloses a syringe serving both as an ampule and syringe which has an extruding piston integrally molded in a bellows-like body portion, with a sealing film for enclosing the liquid contents, and a blood collecting syringe having a bellows shape syringe, a bellows-contracted-state retainer and a bellows-expanding grip.
The syringes include a cylindrical portion of the syringe body made of bellows and, to ensure smooth expansion and/or contraction of the bellows-like cylindrical portion, a pleated reinforcing portion is longitudinally provided at several positions by using a melting portion. The syringes include a unit for holding a pressed condition. The syringe is equipped with front and rear wings, and a hook is located on the rear wing to hold the wings together. In addition, a top end of both syringes is conical and includes a piston with a hollow finger pushing portion
9
on the rear portion thereof and a needle portion which can be threadingly fitted to a tip of cylinder body.
The syringe serves also as an ampule has a convex projection inside the needle portion to tear the seal film sealing a content liquid. This syringe serves also as an ampule and can be used as a drip with the top of syringe accommodating a three way cock. And in the collecting syringe, a back wing located at a back portion of the syringe can be used as a holder for stretch bellows.


REFERENCES:
patent: 3557788 (1971-01-01), Swartz
patent: 3938514 (1976-02-01), Boucher
patent: 4753638 (1988-06-01), Peters
patent: 5002066 (1991-03-01), Simpson et al.
patent: 5219338 (1993-06-01), Haworth
patent: 55-62336 (1980-04-01), None
patent: 1-84651 (1989-06-01), None

Affiliated with

Also associated with

Rating

Syringe serving also as an ampule and associated equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Syringe serving also as an ampule and associated equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Syringe serving also as an ampule and associated equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2618670