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US 2024/0226444 A1Published application
Medical syringe
AssigneeCovidien LP
InventorChristian Lars Halvorsen
Life of this patent
Estimating the term…
Abstract
A medical syringe includes a ratchet for use during dispensing. The medical syringe, by virtue of the ratchet, enables repeated dispensing of a fixed amount of a relatively high-viscosity fluid to a target site within a patient. The medical syringe may be pre-filled with fluid and the fluid maybe sealed within the medical syringe. Accordingly, the medical syringe is configured to resist leaks and/or breaches that may occur as a result of manufacturing, sterilization, shipping, and/or storage.
Claims22
A medical syringe comprising:
- a barrel including a barrel body having proximal and distal ends and a longitudinal axis extending therebetween, wherein the barrel body is configured to hold a volume of relatively high-viscosity fluid therein;
- a plunger including a plunger body longitudinally slidable distally in the barrel body to dispense the relatively high-viscosity fluid from the barrel;
- and
- a ratchet configured to enable repeated dispensing of a fixed amount of the relatively high-viscosity fluid from the syringe to a target site within a patient, the ratchet including
- a toothed rack extending along the plunger body and including a plurality of teeth spaced apart from one another along the plunger body, and
- a pawl connected to the barrel and engageable with the toothed rack.
3 more elements
A pre-filled medical syringe comprising:
- a barrel including
- a barrel body having proximal and distal ends and a longitudinal axis extending therebetween, wherein the barrel body defines a longitudinal barrel passage extending through the proximal and distal ends and configured to slidably receive a plunger therein for dispensing fluid from the barrel body,
- a proximal closure cap removably secured to the proximal end of the barrel body and configured to close and seal the barrel passage the proximal end thereof, and
- a distal closure cap removably secured to the distal end of the barrel body and configured to close and seal the barrel passage and the distal end thereof, and
- a relatively high-viscosity medical grade fluid pre-filled in the barrel body,
- wherein the barrel is free from a plunger received in the barrel body.
3 more elements
A medical syringe comprising:
- a barrel including a barrel body having proximal and distal ends and a longitudinal axis extending therebetween, wherein the barrel body is configured to hold a volume of fluid therein;
- a plunger including a plunger body having proximal and distal ends and a longitudinal axis extending therebetween, wherein the distal end of the plunger body closes and seals the proximal end of the barrel body, the plunger body being releasably fixed longitudinally relative to the barrel body to inhibit the plunger from sliding longitudinally within to the barrel body when a longitudinal force is applied to the plunger;
- and
- fluid pre-filled in the barrel body.
1 more element
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Dependencies are inferred from the claim text.