US20020055713A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for targeted, catherized delivery of medications
Assignee: INTROSAN DENTAL PRODUCTS Inc
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Filing: 1999-10-18
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Granted: —
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Expires: 2019-10-18
Abstract
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.
Inventors
- 👤 David Gibbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:07
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3472
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
240 words
1 . A device for perforating the periodontal ligaments, cortical plate or small bones, and the like and for injecting substances at a predetermined site, comprising: perforator for drilling a hole into the ligament, bone or tissue, wherein said perforator is provided with an inner passage to form a catheter adapted to remain in the hole for directing a hypodermic needle to the predetermined site; and an adapter for coupling to an end of the perforator and for latching a latching-type powered dental handpiece thereto and for transmitting rotational movement from the powered dental handpiece to said perforator, the perforator having a drilling needle extending from an end thereof, the drilling needle having a uniform outer diameter and a smooth non-varying outer surface allowing removal once inserted into the periodontal ligaments, cortical plate or small bones and the like by withdrawing the needle by pulling backwards along a line defined by a longitudinal axis of the inserted drilling needle; the adapter for coupling with the perforator in a locking engagement such that rotational motion imparted to the adapter, rotates the perforator when the adapter is coupled with the perforator, the adapter having an upper end having a driving shank extending along a rotational axis for removably engaging the powered dental hand tool, the adapter having a rod sized to be accommodated within the perforator and sized to fit into a passage in said drilling needle at a lower end thereof.
Claim 2
Dependent Claim
240 words
1 . A device for perforating the periodontal ligaments, cortical plate or small bones, and the like and for injecting substances at a predetermined site, comprising: perforator for drilling a hole into the ligament, bone or tissue, wherein said perforator is provided with an inner passage to form a catheter adapted to remain in the hole for directing a hypodermic needle to the predetermined site; and an adapter for coupling to an end of the perforator and for latching a latching-type powered dental handpiece thereto and for transmitting rotational movement from the powered dental handpiece to said perforator, the perforator having a drilling needle extending from an end thereof, the drilling needle having a uniform outer diameter and a smooth non-varying outer surface allowing removal once inserted into the periodontal ligaments, cortical plate or small bones and the like by withdrawing the needle by pulling backwards along a line defined by a longitudinal axis of the inserted drilling needle; the adapter for coupling with the perforator in a locking engagement such that rotational motion imparted to the adapter, rotates the perforator when the adapter is coupled with the perforator, the adapter having an upper end having a driving shank extending along a rotational axis for removably engaging the powered dental hand tool, the adapter having a rod sized to be accommodated within the perforator and sized to fit into a passage in said drilling needle at a lower end thereof.
Claim 3
Dependent Claim
24 words
2 . A device as defined in claim 1 , wherein the rod has an cutting end for cutting simultaneously with the drilling needle.
Claim 4
Dependent Claim
27 words
3 . A device as defined in claim 2 wherein the rod is a drilling needle having a smaller diameter than the drilling needle on the perforator.
Claim 5
Dependent Claim
28 words
4 . A device as defined in claim 3 wherein the rod has an outer diameter that is the same as an outer diameter of the hypodermic needle.
Claim 6
Dependent Claim
49 words
5 . A device as defined in claim 3 wherein the rod has an outer diameter that is the same as an outer diameter of the hypodermic needle and wherein the rod has a tip at its end that is the same as the tip of the hypodermic needle.
Claim 7
Dependent Claim
35 words
6 . A device as claimed in claim 1 , wherein said drilling needle has a drilling length and an attachment length, and a passage sized to accommodate the hypodermic needle of a smaller gauge.
Claim 8
Dependent Claim
19 words
7 . A device as claimed in claim 6 , wherein said drilling length ends with a cutting edge.
Claim 9
Dependent Claim
31 words
8 . A device as claimed in claim 7 , wherein said cutting edge of the drilling needle is bevelled and where the rod has a cutting edge that is bevelled.
Claim 10
Dependent Claim
20 words
9 . A device as claimed in claim 7 , wherein said cutting edge is provided with cutting teeth therealong.
Claim 11
Dependent Claim
27 words
10 . A device as claimed in claim 1 wherein said perforator is provided with means for receiving and securing a protective cap over said cutting needle.
Claim 12
Dependent Claim
35 words
11 . A device as claimed in claim 10 , wherein said means for receiving and securing comprises a disc entered about said needle and fixed on said first body for receiving said protective cap.
Claim 13
Dependent Claim
32 words
12 . A device as claimed in claim 1 , wherein said rod comprises: a anchoring part incorporated and fixed into said shank, for driving said rod to rotate with said shank.
Claim 14
Dependent Claim
181 words
13 . A rotatable drilling device for use in injecting medication, said rotatable drilling device comprising: a rotatable hollow drill bit, wherein the rotatable hollow drill bit includes a catheter hub and a needle having a uniform non-varying outer diameter extending outwardly from an end of the catheter hub, wherein the needle has a sharpened tip, wherein the rotatable hollow drill bit has a bore extending through the hub and needle, and wherein an end of the hub opposite the needle has an opening through which medication can be introduced into the bore; and an adapter having a rod at a lower end for removabley insertion in the bore of the rotatable hollow drill bit, wherein the rod when inserted into the bore extends through the bore of the rotatable hollow drill bit to the tip of the needle, the rod and the hollow drill bit being coupled together in locked engagement when the rod is inserted into the bore of the rotatable hollow drill bit, the adapter having an end adapted to couple the rod to handpiece for rotation therewith.
Claim 15
Dependent Claim
181 words
13 . A rotatable drilling device for use in injecting medication, said rotatable drilling device comprising: a rotatable hollow drill bit, wherein the rotatable hollow drill bit includes a catheter hub and a needle having a uniform non-varying outer diameter extending outwardly from an end of the catheter hub, wherein the needle has a sharpened tip, wherein the rotatable hollow drill bit has a bore extending through the hub and needle, and wherein an end of the hub opposite the needle has an opening through which medication can be introduced into the bore; and an adapter having a rod at a lower end for removabley insertion in the bore of the rotatable hollow drill bit, wherein the rod when inserted into the bore extends through the bore of the rotatable hollow drill bit to the tip of the needle, the rod and the hollow drill bit being coupled together in locked engagement when the rod is inserted into the bore of the rotatable hollow drill bit, the adapter having an end adapted to couple the rod to handpiece for rotation therewith.
Claim 16
Dependent Claim
26 words
14 . A device as defined in claim 13 , wherein the rod has a cutting tip for cutting simultaneously with the hollow rotatable drill bit.
Claim 17
Dependent Claim
22 words
15 . A device as defined in claim 13 , wherein the adapter has a hub for coupling with the catehter hub.
Claim 18
Dependent Claim
33 words
16 . A device as defined in claim 13 , wherein the drill bit is a hypodermic needle having the cutting tip is sized to receive a hypodermic needle for delivery of medication.
Claim 19
Dependent Claim
174 words
17 . A method of providing inter-osseous medication to a patient comprising the step of: a) providing a hollow drilling catheter means for penetrating ligament, tissue or bone and adapted to remain in place after drilling, the catheter means having a drilling hypodermic needle having a uniform non-varying outer diameter and a cutting tip; and means for engaging and disengaging the drilling catheter to and from a rotary drive shaft; and, disposing within the drilling needle an axial rod which engages the catheter so that by rotating an upper end of the rod the drilling needle is rotated; coupling an upper end of the rod with a motorized hand tool; engaging the motorized hand tool to drilling a hole with the catheter in a desired site of the patient; and, removing the rod; inserting a hypodermic needle into the catheter and into the drilling needle in the desired site, and injecting medication thereto from the hypodermic needle; and, removing the catheter by pulling the catheter along its longitudinal axis backward away from the patient.
Claim 20
Dependent Claim
174 words
17 . A method of providing inter-osseous medication to a patient comprising the step of: a) providing a hollow drilling catheter means for penetrating ligament, tissue or bone and adapted to remain in place after drilling, the catheter means having a drilling hypodermic needle having a uniform non-varying outer diameter and a cutting tip; and means for engaging and disengaging the drilling catheter to and from a rotary drive shaft; and, disposing within the drilling needle an axial rod which engages the catheter so that by rotating an upper end of the rod the drilling needle is rotated; coupling an upper end of the rod with a motorized hand tool; engaging the motorized hand tool to drilling a hole with the catheter in a desired site of the patient; and, removing the rod; inserting a hypodermic needle into the catheter and into the drilling needle in the desired site, and injecting medication thereto from the hypodermic needle; and, removing the catheter by pulling the catheter along its longitudinal axis backward away from the patient.
Claim 21
Dependent Claim
39 words
18 . A method as defined in claim 17 , wherein the rod has a cutting tip and wherein the rod is rotated with the drilling needle and wherein the rod and the drilling needle drill the hole simultaneously.
Claim 22
Dependent Claim
177 words
19 . A device for perforating the periodontal ligaments, cortical plate of small bones, and the like, for injecting substances at a predetermined site, comprising: a perforator for drilling a hole into the ligament, bone or tissue, wherein said perforator is provided with an inner passage to form a catheter adapted to remain in the hole perforated for directing a hypodermic needle to said predetermined site, the perforator having a hub at an upper end and a drilling needle at a lower end thereof; and, an adaptor having a complementary hub for mating with the hub of the perforator and for locking therewith, such that in locking engagement rotation of the adapter hub rotates the perforator hub, the adapter having an upper end for latching with a latching-type powered dental handpiece for transmitting rotational movement to said perforator, the adapter having a rod at an end thereof sized to be disposed within the perforator inner passage, the rod, and the drilling needle being rotated simultaneously when the powered dental handpiece rotates the upper end of the adapter.
Claim 23
Dependent Claim
177 words
19 . A device for perforating the periodontal ligaments, cortical plate of small bones, and the like, for injecting substances at a predetermined site, comprising: a perforator for drilling a hole into the ligament, bone or tissue, wherein said perforator is provided with an inner passage to form a catheter adapted to remain in the hole perforated for directing a hypodermic needle to said predetermined site, the perforator having a hub at an upper end and a drilling needle at a lower end thereof; and, an adaptor having a complementary hub for mating with the hub of the perforator and for locking therewith, such that in locking engagement rotation of the adapter hub rotates the perforator hub, the adapter having an upper end for latching with a latching-type powered dental handpiece for transmitting rotational movement to said perforator, the adapter having a rod at an end thereof sized to be disposed within the perforator inner passage, the rod, and the drilling needle being rotated simultaneously when the powered dental handpiece rotates the upper end of the adapter.
Claim 24
Dependent Claim
143 words
20 . A rotatable drilling device for use in injecting medication, said rotatable drilling device comprising: a rotatable hollow drill bit adapted for mounting in a a drill, wherein the rotatable hollow drill bit includes a hub and a needle extending outwardly from an end of the hub, wherein the needle has a sharpened tip, wherein the rotatable hollow drill bit has a bore extending through the hub and needle, and wherein an end of the hub opposite the needle has an opening through which medication can be introduced into the bore, wherein the hub further includes an adapter means for coupling the hub to the drill for rotation therewith; and a rod removably inserted in the bore of the rotatable hollow drill bit, wherein the rod extends through the bore of the rotatable hollow drill bit to the tip of the needle.
Claim 25
Dependent Claim
143 words
20 . A rotatable drilling device for use in injecting medication, said rotatable drilling device comprising: a rotatable hollow drill bit adapted for mounting in a a drill, wherein the rotatable hollow drill bit includes a hub and a needle extending outwardly from an end of the hub, wherein the needle has a sharpened tip, wherein the rotatable hollow drill bit has a bore extending through the hub and needle, and wherein an end of the hub opposite the needle has an opening through which medication can be introduced into the bore, wherein the hub further includes an adapter means for coupling the hub to the drill for rotation therewith; and a rod removably inserted in the bore of the rotatable hollow drill bit, wherein the rod extends through the bore of the rotatable hollow drill bit to the tip of the needle.
Claim 26
Dependent Claim
95 words
21 . A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough, and wherein the drill bit is suitable for intraosseous drilling; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing and means for supplying a controlled dose of medication fluid for intraossaous injection through the bore of the drill bit.
Claim 27
Dependent Claim
95 words
21 . A medication injection device comprising: a housing for grasping by an operator, wherein the housing has a distal end; a rotatable hollow drill bit mounted to the distal end of the housing, wherein the drill bit includes a bore therethrough, and wherein the drill bit is suitable for intraosseous drilling; means disposed in the housing for rotating the drill bit; and fluid dispensing means including a fluid reservoir stationarily mounted in the housing and means for supplying a controlled dose of medication fluid for intraossaous injection through the bore of the drill bit.
Claim 28
Dependent Claim
31 words
22 . A device as recited in claim 21 wherein the fluid dispensing means supplies the medication fluid to the bore of the drill bit while the drill bit is rotating.
Claim 29
Dependent Claim
25 words
23 . A medication injection device as defined in claim 21 , wherein the hollow drill bit includes a hypodermic needle having a sharpened point.
References Cited (Backward Citations)
No citation records indexed.
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