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Syringe

A technology of syringes and connectors, applied in the field of syringes

Pending Publication Date: 2022-05-27
MICROVENTION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, until now this has not been possible because radiopaque reagents settle towards the lowest part of the syringe during transport and storage, creating a fixed build-up mass over time that makes it difficult to later degas and degas the composition. mix

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0112] Physicians prepare liquid embolic compositions for administration to blood vessels in a patient's brain to treat arteriovenous malformations. Liquid embolic compositions are provided in prefilled syringes including conventional syringe caps. As soon as the syringe was unpacked, the physician noticed that the imaging agent had accumulated on the entire delivery end of the syringe. Physicians were unable to degas liquid embolic compositions as directed by the instructions. The physician throws away the prefilled syringe and uses another one that can be properly degassed with no buildup throughout the delivery end.

Embodiment 2

[0114] A doctor prepares a liquid embolic composition to apply to a blood vessel in a patient's brain. The liquid embolic composition is provided in a prefilled syringe including a syringe cap as described herein, the syringe cap including a protruding member. As soon as the syringe was unpacked, the physician noticed that the imaging agent had accumulated throughout the delivery end of the syringe. However, the physician noticed that the syringe cap included a protruding member through the accumulated material. According to the instructions provided, the physician removes the syringe cap and properly degass the composition. The physician then recaps the syringe and reconstitutes the composition. The syringe is then connected to the delivery catheter and ready for injection.

Embodiment 3

[0116] Physicians prepare liquid embolic compositions for administration to blood vessels in a patient's brain to treat arteriovenous malformations. Liquid embolic compositions are provided in prefilled syringes including conventional syringe caps. As soon as the syringe was unpacked, the physician noticed that the imaging agent had accumulated on the entire delivery end of the syringe. Physicians cannot degas liquid embolic compositions as directed by the instructions. Instead of throwing away the prefilled syringe, the physician uses a syringe cap as described herein, which has a pointed protruding member to pierce the accumulated material, thereby creating a channel therethrough. The physician then appropriately degass the composition according to the instructions provided. The physician then recaps the syringe and reconstitutes the composition. The syringe is then connected to the delivery catheter and ready for injection.

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Abstract

Described herein is a syringe cap comprising a stopper portion and a protruding member extending from one end of the stopper portion. The protruding member may extend a length that is longer than the depth of the component accumulated within the syringe.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 883,472, filed August 6, 2019, which is incorporated herein by reference in its entirety. Background technique [0003] Fluid emboli (or emboli) are part of a new class of occlusive products aimed at treating vascular complications. One particular area where fluid embolization provides benefit is in the treatment of arteriovenous malformations (AVMs), which involve numerous tangled abnormal blood vessels that often form in the brain, thereby affecting the normal flow of blood. The fluid embolism hardens or solidifies after delivery, thereby blocking the target treatment area. [0004] To aid in imaging the embolic material after injection, the liquid embolus may include a radiopaque agent. The radiopaque agent can be molecularly attached to the embolic compound, or it can comprise a separate compound suspended in an embolic solution. In the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/178A61M5/28A61J1/20
CPCA61M2005/3104A61M2005/312A61M5/002A61M5/31A61M5/007A61K49/0404A61M2005/3106A61M2202/0468A61M5/31596
Inventor 塞缪尔·陈史蒂夫·特罗姆
Owner MICROVENTION INC