Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
  • A61M2005/2403—Ampoule inserted into the ampoule holder
  • A61M2005/2407—Ampoule inserted into the ampoule holder from the rear
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
  • A61M2005/2403—Ampoule inserted into the ampoule holder
  • A61M2005/2411—Ampoule inserted into the ampoule holder from the front
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
  • A61M2005/2485—Ampoule holder connected to rest of syringe
  • A61M2005/2488—Ampoule holder connected to rest of syringe via rotation, e.g. threads or bayonet
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/31—Details
  • A61M5/3129—Syringe barrels
  • A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
  • A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/002—Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
  • A61M5/2455—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened
  • A61M5/2466—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened by piercing without internal pressure increase
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/31—Details
  • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
  • A61M5/3202—Devices for protection of the needle before use, e.g. caps
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/178—Syringes
  • A61M5/31—Details
  • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
  • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
  • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw

Definitions

• the present invention has as purpose a syringe equipment with matching needles for injections, mainly meant for use in odontological anaesthesia. Given this main application, the following description shall be made regarding the latter, being besides understood that this does not intend having a restrictive nature, because the object is liable of open to various applications.
• the traditional syringes and needles meant for repetitive use after disinfection have for a large part been replaced by matching syringes and needles equipments, where the syringe includes a piston and a body with a handle, a place to receive the appropriate ampoule, said ampoule or phial and a coupling mean for a matching needle, and every needle owns a body forming an additional coupling mean to the coupling mean of the syringe, in which is fixed a needle appropriately said tubular, which comes out from both parts of the body with a main portion meant for the performance of the injection and a secondary portion meant to perforate the sealed lid of the ampoule, the main portion of the tubular needle being protected by a cover and the secondary portion being protected by a cap.
• the needle with its protection parts is preventively sterilized and meant to be used by only one patient, and is coupled to the syringe through the additional coupling mean of the two parts, after removal of the cap while the cover is subsequently removed at the time of the performance of the injection. In such a way one avoids the necessity of performing the disinfection of the needle while ensuring sterility. Generally the syringe is not subject to disinfection.
• the protection cover of the secondary portion of the tubular needle must be removed before coupling the needle with the syringe, during this operation the protruding point of the tubular needle may injure the operator. If, later, it is necessary to loosen temporarily the needle from the syringe before the end of use of the latter, for example to use on the same patient a new ampoule, the previous one not being sufficient, this operation is difficult for the operator because the body of the needle shows a very small grip surface and the operator's hand must be covered by a glove which reduces the sensitivity and gripping capacity.
• the goal of the present invention is therefore to give remedy to these disadvantages of the known equipment of matching syringe and needles. More in particular one of the first goals is to preserve in the best way the sterility of the needle, without requiring for this purpose a sterilization of the syringe, providing for means likely to avoid any contact of the secondary portion of the needle with non sterile parts of the syringe or otherwise. Another goal is to avoid any possible contact of the syringe with the patient and therefore any possibility of mutual contamination. Another goal of the invention is to avoid , during the coupling of the needle with the syringe, the presence of any protruding point likely to injure the operator.
• an equipment of matching syringe and needles, for injections including a syringe which includes a piston and a body with a handle and with a coupling mean for a matching needle, the said needle at its turn including a body forming an additional coupling mean to the coupling mean of the syringe and in which is fixed a needle appropriately said tubular, protruding from both parts of the body with a main portion meant for the performance of the injection and the secondary portion meant to perforate a lid of an ampoule, due to the fact that the body of the needle extends to form a tubular portion likely to receive an ampoule and that because the additional coupling mean to the coupling mean of the syringe is located at the distal extremity of the said body of the needle.
• the secondary portion of the tubular needle meant to perforate a lid of an ampoule, is close to the bottom of the tubular portion of the body of the needle and does not protrude outwards, so that it cannot in any way injure the operator, and it makes contact only with the lid of the ampoule, which of course is sterile, without on the contrary being able to have any contact with parts of the syringe or others.
• the body of the syringe lacks the extension usually meant to receive the ampoule, and ends this way at a considerable distance from the main portion of the needle, so that no danger remains that during the performance of the injection parts of the syringe, non sterile, make contact with the patient.
• the big extension of the body of the needle due to the fact that in it (instead than in the syringe) is predisposed the cavity meant to receive the ampoule, offers to the operator a large gripping surface, which ensures an easy handling even from a hand covered by a glove.
• Fig. 1 illustrates a lateral view of a known type of syringe, represented as for comparison.
• Fig. 2 illustrates a lateral view of a commercial ampoule, predisposed for use in a syringe according to figure 1
• Fig. 3 represents a needle matching the syringe according to figure 1 , provided with its protection, before use;
• Fig. 4 represents the same needle, as it presents itself after having been deprived from its cap (represented in figure 5) to be coupled with the syringe according to figure 1.
• Fig. 6 illustrates a lateral view of a syringe part of the equipment according to the invention.
• Fig. 7 illustrates a lateral view of an ampoule fit for use with the equipment according to the invention
• Fig. 8 illustrates a lateral view of a needle matching the syringe according to figure 6 as it presents itself before and during its coupling with the syringe.
• Fig. 9 and Fig. 10 illustrate the needle according to figure 8 from which the protection cover has been removed and the cover itself.
• Fig. 11 illustrates the piston of the syringe according to figure 6, isolated from the body of the syringe.
• Fig. 12 is a view of a detail of the piston of the syringe, in a different configuration from that according to figure 11 ;
• Fig. 13 illustrates a lateral view of the syringe and needle according to the invention, coupled, ready for the performance of the injection after removal of the cover which protects the main portion of the tubular needle.
• the syringe comprises a metallic body 1 which forms a handle comprising a ring 2 and a cam 3 and extends in a tubular part 4 meant to receive a slipped on appropriate ampoule.
• a coupling mean in particular a bayonet coupling mean 6, for the coupling of a needle matching the syringe.
• a piston 7 provided with a handle 8 and a head 9, which in certain cases, as in this example, is equipped with an helical system 10.
• FIG. 2 An ampoule fit to be inserted in the syringe according to figure 1 is represented in figure 2.
• the latter includes a tube 11 obstructed at one extremity by a stopper 12 forming a sealed lid which can be perforated, and at the opposite extremity by a cylinder 13 sliding inside tube 11.
• This tube is filled with a liquid which can be injected, as for example an anaesthetic.
• the ampoule 11 -13 is inserted in the cavity of the tubular part 4 of the syringe and the helical system 10 of the syringe (if it is provided for) is screwed in the cylinder 13 of the ampoule.
• the needle matching the syringe described presents itself as shown in figure 3, with a body 14 in which is inserted a tubular needle covered with a cover 17 and a cap 18.
• cap 18 When cap 18 is removed (figure 5), the needle presents itself as shown in figure 4; the main portion of the tubular needle is still protected and obstructed by the cover 17, while the secondary portion of the tubular needle is slightly protruding with its point 16 out of the body 14 of the needle.
• This body presents an additional coupling mean to the coupling mean of the syringe and so, in the represented figure, a pivot 15 to introduce in the bayonet slit 6.
• point 16 of the secondary portion of the tubular needle perforates the sealed lid 12 of the ampoule and places the tubular needle in communication with the inside of the ampoule.
• the head 9 of the piston 7 is capable of pushing cylinder 13 to force the liquid contained in the ampoule through the tubular needle, and perform an injection.
• the syringe is equipped with the helical system 10, the latter is screwed in the cylinder 13 of the ampoule and even grants, if required, the exercising of a suction in order to check if the needle has not been introduced in a vein.
• point 16 of the secondary portion of the tubular needle is protruding out of body 14 of the needle , involves, on the one hand, that during the operations of introducing of the needle in the syringe the operator may be injured by that, and on the other hand that the point itself may come into contact with the extremity of the syringe or with other objects, contaminating itself.
• the distance which separates the extremity of the syringe from the main portion of the tubular needle is only represented by a narrow flange of body 14 of the needle, so that the syringe can easily come into contact with the patient.
• the exposed surface of body 14 of the needle being extremely reduced, its handling from the gloved hand of the operator is difficult, if the needle has to be detached at the same time as the syringe before the end of its use.
• the syringe according to figure 6 comprises a body, usually in metal, 21 , which forms a handle comprising a ring 22 and a cam 23 and extends in a short tubular part 24 at which extremity is formed a coupling mean, for example a bayonet coupling mean 26, for the coupling of a needle matching with the syringe.
• a coupling mean for example a bayonet coupling mean 26, for the coupling of a needle matching with the syringe.
• body 21 is inserted, sliding, a piston 27 provided with a handle 26.
• the needle On its side the needle, illustrated with a removed protection cover in figures 9 and 10, includes a body 34 in which is inserted a needle appropriately said tubular, which protrudes out of it, with a main portion 33, meant to perform an injection, and with a secondary portion 36 meant to perforate the sealed lid 12 of an ampoule 11 , which (figure 7) may be identical to the one usually marketed, fit for the known syringes.
• the particularity of the needle according to the invention consists in the fact that its body 34 extends to form a tubular part 32 predisposed to receive the ampoule 11 and provided at its extremity with an additional coupling mean to that of the syringe, in this example a couple of pivots 35 fit to be used in the bayonet slit 26 of the syringe.
• a cover 37 Before and during the coupling operation with the syringe, the main portion 33 of the needle is protected with a cover 37.
• the body of this needle may be made in only one piece, or its part 34 in which is inserted in the tubular needle, and the tubular part 32, may be made separately and then connected in any manner whatsoever. This permits for example to use different plastic materials in the manufacturing of these two parts. It is also possible to use the needles 33-34-36 existing on the market, equipped with for example a screw coupling, making the tubular part 32 with an additional coupling to which is connected the needle. This grants further production savings.
• This needle may be marketed and kept, as usual, in a sterile pack from which it is taken out at the time of use.
• the secondary portion 36 of the tubular needle being closed in the tubular part 32, may in no way injure the operator, or come into contact with any non sterile part whatsoever, of the syringe or any other body whatsoever, but only the sealed lid 12 of the ampoule 11.
• the extremity of the tubular part 24 of the syringe, when the needle is coupled, is, as for the main portion 33 of the needle, at a distance equal to the length of the tubular part 32, that is at the length of the ampoule, and therefore it cannot even by accident come into contact with the patient
• the needle when the needle is coupled with the syringe, its body offers to the operator all the surface of the tubular part 32, and for this reason it can be manipulated with the maximum facility even from a hand having a glove as obstacle. This can easily be understood from the observation of figure 13.
• the coupling mean of the syringe when it is constituted by a bayonet slip, presents a shrink 25 in which pivot 35 of the body of the needle can be engaged. This provides an additional safety against the discoupling mean by accident of the needle of the syringe.
• the piston 27 of the syringe is preferably provided with a tubular head 29, screwed, which, as figure 11 shows, can leave uncovered an helical system 30 meant to be screwed in the cylinder 13 of an ampoule.
• the head 29 can be moved by turning it, until the helical system 30 is covered, as figure 12 shows it. The syringe is then more easy to use, not requiring the screwing of the helical system 30 in the cylinder 13 of the ampoule.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=11417248

Family Applications (1)

Country Status (3)

Cited By (18)

Citations (6)

• 1998
  • 1998-12-15 IT IT1998TO001046A patent/IT1303584B1/it active IP Right Grant
• 1999
  • 1999-12-15 WO PCT/IB1999/001999 patent/WO2000035519A1/it active Application Filing
  • 1999-12-15 AU AU14048/00A patent/AU1404800A/en not_active Abandoned

Patent Citations (6)

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