Device for targeted, catherized delivery of medications

• US 20050148939A1
• Filed: 03/01/2005
• Published: 07/07/2005
• Est. Priority Date: 06/06/1995
• Status: Abandoned Application

• Current Assignee: David Gibbs
• Original Assignee: David Gibbs
• Inventors: Gibbs, David
• Application Number:
  US11/068,234
• Publication Number:
  US 20050148939A1
• Time in Patent Office: Days
• US Class Current: 604/164.10
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections

Abstract

Apparatus and method for catheterized delivery or infusion of medication and anaesthesia are disclosed. The perforating catheter is first used to perforate the periodontal ligament and/or the cortical plate of bone tissue, and is then left in place and used as a catheter for insertion of a hypodermic needle of smaller gauge to deliver medication or anaesthesia to a target area. The perforator is a bevelled needle for drilling into the ligament or bone tissue. For drilling, the device comprises an adaptor which transmits the rotational movement from a dental hand piece or the like to the bevelled needle. A cap is also included for protecting the bevelled needle during storage of the device. The adaptor may have a rod which extends axially into the bevelled needle when the device is assembled for drilling. The rod is used to prevent the debris resulting from drilling from blocking the passage in the bevelled needle. As well, the rod reinforces the needle and maintains the alignment between the perforator and the adaptor for improved drilling efficiency. An adapter is disclosed which couples with the catheter once in place easing access to supply medication to difficult to reach areas.

Claims

1-7. -7. (canceled)

8. A rotatable drilling device for use in injecting a substance, said rotatable drilling device comprising:

a) a rotatable hollow drill bit, wherein the rotatable hollow drill bit includes a first hub and a needle having a first outer diameter extending outwardly from an end of the first hub, the first hub being immovably affixed to the needle so that when the first hub is rotated, the needle is rotated with the first hub, wherein the needle has a sharp tip at an end, wherein the rotatable hollow drill bit has a bore extending therethrough through which the substance can be introduced into the bore; and

,

b) an adapter having a rod at a lower end for removable insertion in the bore of the rotatable hollow drill bit, wherein the rod when inserted into the bore extends into and through the needle for substantially preventing debris from entering the needle and blocking the bore when wherein the adapter has an upper end for directly removably coupling with a motorized handpiece and has a second hub immovably coupled with the rod for directly mating with the first hub of the rotatable hollow drill bit, so as to impart rotational motion to the rotatable hollow drill bit when the upper end of the upper end of the adapter is rotated by the motorized handpiece.