| AMENDED CLAIMS received by the International Bureau on 11 May 2017 (11.05.2017) An endodontic negative pressure irrigation system according to claim 1 further comprising each inlet port being triangular in shape. A negative pressure irrigation system according to claim 1 further comprising the two suction inlet ports being formed by: cutting a slot (25) into a square-cut tip end of a needle material; bending a remaining sidewall portion (27) of the needle material located on opposing sides of the slot toward one another so a respective tip end (29) of each remaining sidewall portion contacts an opposing respective tip end; and joining together the two tip ends when in contact with one another to create the closed distal end. An endodontic irrigation system comprising: at least one negative pressure irrigation needle (20) including a closed distal end (23) and two suction inlet ports (21) located opposite one another immediately proximal to the closed distal end; and a suction manifold (37) including a tube (39) on one side arranged for connection to a dental vacuum system and at least one tube (35) on another side arranged for connection to a corresponding negative pressure irrigation needle. |
Title:
MULTI-CANNULA NEGATIVE PRESSURE IRRIGATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/096382
Kind Code:
A4
Abstract:
A negative pressure irrigation system includes one or more negative pressure irrigation needles sized for insertion into a canal of a tooth, each needle having a closed distal end and two suction inlet ports located opposite one another immediately proximal to the closed distal end. The needles are placed in communication with a dental vacuum system by way of a suction manifold. An irrigant inlet tube supplies irrigant from a irrigant container into a pulp chamber or a tooth. The irrigant inlet tube may include a tapered end designed to tightly fit into a lateral irrigant supply port previously drilled into the pulp chamber. A light-cure polymer seals the inlet tube and needles when in use.
Inventors:
BUCHANAN L (US)
Application Number:
PCT/US2016/064978
Publication Date:
November 29, 2018
Filing Date:
December 05, 2016
Export Citation:
Assignee:
BUCHANAN L STEPHEN (US)
International Classes:
A61C17/02; A61C5/40
Attorney, Agent or Firm:
ROSSLER, Paul, E. (US)
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Claims: