Dual cartridge container applicator with needle penetration connection to tip
Inventors
Assignees
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Publication Number
US-12186534-B2
Publication Date
2025-01-07
Expiration Date
Abstract
A co-reactive liquids delivery applicator, including first and second hollow cylindrical cartridges, each including a stopper at a proximal end and a sealing septum on a distal end and the cartridges containing co-reactive liquids therein, an applicator body including two adjacent chambers configured to secure the first and second cylindrical cartridges, a manifold positioned at a distal portion of the applicator body, the manifold including a pair of hollow needles extending from a proximal portion and a tip connection positioned at a distal portion thereof, and a toggle configured to advance the manifold towards the distal end of the cartridge, wherein upon advancing the manifold each hollow needle penetrates the sealing septum and establishes fluid communication with one of the liquids of the first and second cylindrical cartridges.
Core Innovation
The invention is a co-reactive liquids delivery applicator that delivers co-reactive liquids using first and second hollow cylindrical cartridges. Each cartridge includes a stopper at a proximal end and a sealing septum at a distal end, with co-reactive liquids contained therein. The applicator body secures the cartridges in two adjacent chambers for delivery during minimally invasive surgical procedures and laparoscopic surgery.
A distal manifold positioned at a distal portion of the applicator body carries a pair of hollow needles extending from a proximal portion of the manifold and not in fluid communication with the cartridges until advancement. At least two lumens fluidly connect the needles to a tip connection at a distal portion of the applicator. When the manifold is slidably advanced toward the proximal end, each hollow needle penetrates a sealing septum and establishes fluid communication with one of the liquids of the first and second cartridges.
The toggle advances the manifold and the pair of hollow needles using a toggle latch on the applicator body. The toggle latch includes a lever arm pivotally attached to the applicator body and to a draw bar held within a catch on the manifold. The septum retention can be provided by a crimped metal cap with a central opening in the septum, and needle penetration is directed by slide guides. A distal tip connector can be used with an elongated delivery tip connected to the tip connection.
Claims Coverage
The independent claims include four inventive features, centered on a toggle-advanced distal manifold carrying a pair of hollow needles that pierce two cartridge sealing septa and establish fluid communication to deliver co-reactive liquids to a distal tip connection. The claims also recite the dual adjacent-chamber cartridges, the toggle latch with lever arm and draw bar, and the distal lumens to the tip connection.
Toggle-advanced manifold with dual hollow needle penetration into dual sealing septa
A manifold at a distal portion includes a pair of hollow needles extending from a proximal portion and not initially in fluid communication with first and second hollow cylindrical cartridges, with at least two lumens connecting the needles to a tip connection, and a toggle configured to slidably advance the manifold and the pair of hollow needles so that upon advancing, each hollow needle penetrates one sealing septum and establishes fluid communication with one of the liquids of the first and second cylindrical cartridges.
Dual adjacent-chamber cartridges with stopper and distal sealing septum
An applicator body includes two adjacent chambers securing first and second hollow cylindrical cartridges, each cartridge including a stopper at a proximal end and a sealing septum at a distal end, with the cylindrical cartridges containing co-reactive liquids therein.
Toggle latch with lever arm and draw bar held within a catch on the manifold
The toggle comprises a toggle latch located on the applicator body, where the toggle latch includes a lever arm pivotally attached to the applicator body and to a draw bar held within the catch on the manifold.
Distal needle lumens to tip connection
The manifold includes at least two lumens fluidly connecting the hollow needles to a tip connection positioned at a distal portion thereof, providing fluid flow from the needles after septum penetration to the distal tip connection.
Across the independent claims, the key claim coverage is for a co-reactive liquids delivery applicator where a toggle slidably advances a distal manifold with a pair of hollow needles to penetrate sealing septa of two secured cartridges in adjacent chambers, establishing fluid communication so the liquids are delivered through the needles’ lumens to a tip connection, with actuation provided by a toggle latch including a lever arm and a draw bar held within a catch on the manifold.
Stated Advantages
Avoids awkward luer twisting.
Enables low-force septum penetration.
Includes safety locking behavior.
Documented Applications
Minimally invasive hemostasis during surgical procedures, including laparoscopic surgery, using co-reactive thrombin/fibrinogen tissue sealants delivered by the co-reactive liquids delivery applicator.
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