Device for dispensing adhesive at high pressure

Info

Publication number
WO2009158270A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
adhesive
cylinder
reservoir
dispensing
high
Prior art date
Application number
PCT/US2009/047844
Other languages
French (fr)
Other versions
WO2009158270A2 (en )
Inventor
John Thomas Tolson
Original Assignee
John Thomas Tolson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802Equipment for handling bone cement or other fluid fillers
    • A61B17/8805Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8822Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00491Surgical glue applicators

Abstract

A glue gun for dispensing adhesive at high pressure has a dispensing head block capping an axial end of a tubular, adhesive receiving reservoir and formed with a diametric cylinder with an inlet from the reservoir and an outlet. A working piston is reciprocable along the cylinder between longitudinally spaced adhesive inlet and adhesive outlet ends of the cylinder to dispense adhesive at high pressure. A reservoir cup of a lubricant, anti-setting agent or solvent is mounted on an exterior of the cap block and a small bore passageway extends through the cap block between a location of the cylinder adjacent a rear of the inlet and the reservoir cup to feed the lubricant, anti-setting agent or solvent at a controlled rate to the cylinder wall at least throughout the working stroke of the piston, to prevent the piston jamming.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340433A (en) * 1989-10-30 1994-08-23 Stratasys, Inc. Modeling apparatus for three-dimensional objects
US6056165A (en) * 1998-10-21 2000-05-02 Speranza; James D. Free standing cordless gun for dispensing liquid glue and similar materials
US20080073448A1 (en) * 2006-09-25 2008-03-27 John Kirby Kendall Anti-stringing applicator
KR100831333B1 (en) * 2007-04-19 2008-05-22 최효철 Glue-gun

Also Published As

Publication number Publication date Type
WO2009158270A2 (en) 2009-12-30 application

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