Filling system and method for syringes with short needles
First Claim
1. A fluid transfer system for use in transferring a medical substance from a medication container having a septum with a thickness greater than 3 mm into a delivery device, comprising:
- a reservoir within said delivery device adapted for storing a medical substance;
a needle cannula attached to said delivery device having a lumen in fluid communication to said reservoir and having a forward tip extending away from said delivery device a pre-selected usable length of less than 3 mm, such that said usable length is less than a thickness of said septum of said container;
an adapter body including;
a container receiving portion said container receiving portion having a septum access needle having a lumen, anda longitudinal projection extending from said adapter body, said projection including an adapter septum having a distal portion and a thickness that is less than the usable length of said needle cannula, wherein said distal portion is in fluid communication with said septum access needle lumen and said adapter septum is located at a proximal portion of said longitudinal projection;
wherein when said container is received in said container receiving portion and said delivery device needle is penetrated through said adapter septum, fluid communication between said substance in said container and said reservoir of said delivery device is established.
1 Assignment
0 Petitions
Accused Products
Abstract
A filling system for syringes utilizing short needles to be filled from a vial having a thick septum is described. The system may be useful in any situation where the septum or vial stopper of a medication container is thicker than the usable length of the needle on the delivery device. Preferably, the syringe is filled just prior to use. The short needle includes an optional limiter which only permits a certain predetermined length of the needle cannula to protrude beyond the limiter a distance which limits penetration of the needle tip into both the skin and a vial stopper. The system and adapter may be useful for needles having a protrusion distance from approximately 0.5 mm to 3 mm, or any needle with a protrusion length shorter that the thickness of a septum to be accessed. Furthermore, a device is provided with shielding capabilities to shield the needle of the device.
100 Citations
9 Claims
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1. A fluid transfer system for use in transferring a medical substance from a medication container having a septum with a thickness greater than 3 mm into a delivery device, comprising:
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a reservoir within said delivery device adapted for storing a medical substance; a needle cannula attached to said delivery device having a lumen in fluid communication to said reservoir and having a forward tip extending away from said delivery device a pre-selected usable length of less than 3 mm, such that said usable length is less than a thickness of said septum of said container; an adapter body including; a container receiving portion said container receiving portion having a septum access needle having a lumen, and a longitudinal projection extending from said adapter body, said projection including an adapter septum having a distal portion and a thickness that is less than the usable length of said needle cannula, wherein said distal portion is in fluid communication with said septum access needle lumen and said adapter septum is located at a proximal portion of said longitudinal projection; wherein when said container is received in said container receiving portion and said delivery device needle is penetrated through said adapter septum, fluid communication between said substance in said container and said reservoir of said delivery device is established. - View Dependent Claims (2, 3, 4)
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5. A method of transferring a medical substance from a medication container having a septum with a thickness greater than 3 mm into a delivery device having a reservoir in fluid communication to a needle cannula attached to said delivery device having a forward tip extending away from said delivery device a usable length less than 3 mm;
- comprising the steps of;
providing an adapter including a septum access needle having a lumen, in fluid communication with a distal portion of an adapter septum having a thickness less than the usable length of said needle cannula; penetrating said medication container septum with said septum access needle, wherein when said container septum is penetrated with said septum access needle fluid communication between said medical substance and said lumen occurs; penetrating said adapter septum with said delivery device needle, wherein when said adapter septum is penetrated with said delivery device needle, fluid communication between said medical substance and said lumen occurs, whereby, fluid communication between said substance in said container and said reservoir of said delivery device is established; and
,aspirating said medical substance into said delivery device. - View Dependent Claims (6, 7, 8)
- comprising the steps of;
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9. A method of transferring a medical substance from a medication container having a septum with a pre-determined thickness into a delivery device having a reservoir in fluid communication to a needle cannula attached to said delivery device having a forward tip extending away from said delivery device a pre-selected usable length;
- wherein said usable length is less than said pre-determined thickness of said container septum comprising the steps of;
providing an adapter including a septum access needle having a lumen, in fluid communication with a distal portion of an adapter septum having a thickness less than the usable length of said needle cannula; penetrating said medication container septum with said septum access needle, wherein when said container septum is penetrated with said septum access needle fluid communication between said medical substance and said lumen occurs; penetrating said adapter septum with said delivery device needle, wherein when said adapter septum is penetrated with said delivery device needle, fluid communication between said medical substance and said lumen occurs, whereby, fluid communication between said substance in said container and said reservoir of said delivery device is established; aspirating said medical substance into said delivery device; shielding said delivery device needle with a needle shield, thereby concealing said forward tip of said needle cannula, wherein said shield is slidably engaged to said delivery device; performing an injection with said delivery device, locking said shield of said delivery device needle in a distal position after performing said injection step; providing said delivery device with said shield in an initial distal position concealing said forward tip of said needle cannula, wherein said forward tip is engageable to said adapter septum; and moving said shield to a proximal position exposing said usable length of said needle cannula.
- wherein said usable length is less than said pre-determined thickness of said container septum comprising the steps of;
Specification