EP0506213A1
Expired / Lapsed
EP
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Drill pin guide and method for orthopedic surgery
Assignee: BECKLEY ELLIS ALFRED
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Filing: 1992-02-18
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Granted: —
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Expires: 2012-02-18
Abstract
Abstract A drill pin guide (10) and method is disclosed for the fixation of bone fractures. A surgeon first inserts a small orthopedic pin (203) through a bone fragment into the underlying bone mass to stabilize the fracture. Next a drill guide (10) is placed over a portion of the pin protruding from the bone and is used to position a drill bit for drilling a small hole (208) parallel to the inserted pin. After removing the drill pin guide a surgical screw is inserted into the drilled hole. By properly adjusting the distance between pin and screw, the surgeon may create an interference fit between the two thus preventing either from unintentionally loosening.
Inventors
- 👤 Alfred Beckley Ellis
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 01:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8872; A61B17/16; A61B17/17; A61B17/1728; A61B17/1739; Y; Y10; Y10S; Y10S606/00; Y10S606/916
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
96 words
An orthopedic device for setting a bone fragment relative to an adjacent bone mass, said device comprising: a body; a barrel located on and rotatable relative to said body; a first channel through said barrel for accepting a first elongated orthopedic fastening device installed in said bone fragment and for aligning said barrel along said first elongated orthopedic fastening device; and a second channel for laterally spacing a second elongated fastening device from said first elongated orthopedic fastening device and for aligning said second elongated orthopedic fastening device parallel to said first elongated orthopedic fastening device.
Claim 2
Dependent Claim
38 words
The orthopedic device of Claim 1 wherein said second channel is sized for accepting a drill bit for boring a socket through said bone fragment and into an adjacent bone mass, said socket for accepting said second device.
Claim 3
Dependent Claim
45 words
The orthopedic device of Claim 1 wherein an interference fit is created between said first device and said second device preventing movement of said first device out of said bone fragment and mass when both said devices are installed in said bone fragment and mass.
Claim 4
Dependent Claim
21 words
The device of Claim 3 wherein said first device is an orthopedic pin and said second device is an orthopedic screw.
Claim 5
Dependent Claim
10 words
The device of Claim 1 wherein said body is cylindrical.
Claim 6
Dependent Claim
19 words
The device of Claim 5 wherein said first hole is offset from the longitudinal center line of said body.
Claim 7
Dependent Claim
15 words
The device of Claim 6 wherein said second hole is along said longitudinal center line.
Claim 8
Dependent Claim
21 words
The device of Claim 5 wherein said body has an outer shell and wherein said body rotates within said outer shell.
Claim 9
Dependent Claim
129 words
A drill pin guide for installing an interlocking pin and screw through a bone fragment and into the underlying bone mass, said guide comprising: a body; a barrel located on and rotatable relative to said body; a first channel through said barrel for accepting a pin installed in said bone fragment; and a second channel through said barrel for accepting a drill bit, for boring a socket through a bone fragment and into an adjacent bone mass, the socket for accepting a screw, said second channel aligned parallel to said first channel and laterally separated from said first channel whereby said screw contacts said pin to prevent outward movement of said pin creating an interference fit between said pin and said screw when said pin and screw are installed.
Claim 10
Independent Claim
91 words
The method of joining two pieces of bone to form a rigid structure comprising the steps of: inserting a pin through a first bone piece and into a second bone piece, at least one end of the pin protruding from said first bone piece; drilling a hole through the first bone piece and into the second bone piece, the hole being parallel to the portion of the pin protruding from said first bone piece; installing a screw in the hole; and creating an interference fit between the screw and the pin.
Claim 11
Dependent Claim
39 words
The method of Claim 10 wherein the screw has a head and a shaft, the diameter of the head being greater than the diameter of the shaft and whereby the head tangentially contacts the pin causing the interference fit.
Claim 12
Dependent Claim
23 words
The method of Claim 11 further comprising the step of bending the pin at the base of the bone before said drilling step.
Claim 13
Dependent Claim
23 words
The method of Claim 10 wherein at least one of the threads of the screw tangentially contacts the pin causing the interference fit.
Claim 14
Independent Claim
108 words
The method of joining two pieces of bone to form a rigid structure comprising the steps of: inserting a pin through a first bone piece and into a second bone piece, at least one end of the pin protruding from said first bone piece; drilling a hole through the first bone piece and into the second bone piece, the hole being parallel to the portion of the pin protruding from said first bone piece; and installing a screw in the hole, the screw having a head larger than its shaft, the head creating an interference fit with the portion of the pin protruding from said first bone piece.
Claim 15
Dependent Claim
23 words
The method of Claim 14 further comprising the step of bending the pin at the base of the bone before said drilling step.
Claim 16
Dependent Claim
46 words
The method of Claim 14 further comprising the step of placing a guide over the pin before said drilling step, the guide having a first channel for receiving the pin and a second channel for receiving a drill bit, the channels being parallel to each other.
Claim 17
Independent Claim
123 words
The method of joining two pieces of bone to form a rigid structure comprising the steps of: inserting a first pin through a first bone piece and into a second bone piece, at least one end of the pin protruding from said first bone piece; inserting a second pin through the first bone piece and into the second bone piece along a path parallel to the portion of the first pin protruding from said first bone piece; drilling a hole parallel to one of the first and second pins through the first bone piece and into the second bone piece; installing a screw in the hole; and creating an interference fit between said one of the first and second pins and the screw.
Claim 18
Independent Claim
96 words
The method of joining two pieces of bone to form a rigid structure comprising the steps of: inserting a first pin through a first bone piece and into a second bone piece, at least one end of the pin protruding from said first bone piece; inserting a second pin through the first bone piece and into the second bone piece along a path parallel to the first portion of the first pin protruding from said first bone piece; and bending the first pin at the surface of the bone before said inserting a second pin step.
Claim 19
Dependent Claim
145 words
A hole guide for use in stabilizing fractured bones, where said stabilization occurs as a result of a combination of one pin and one or more pins or screws inserted into at least one of said bones, said guide comprising: a body; a barrel having a width and a thickness located on and rotatable relative to said body; a first hole parallel to the axis of said thickness, said hole having a diameter corresponding to the diameter of a first pin used for insertion in at least one of said bones; and a second hole displaced from said first hole a fixed amount, said second hole substantially parallel to said first hole, said second hole having a diameter corresponding to the diameter of a bit used to construct a hole into at least one of said bones a fixed distance away from said first pin.
References Cited (Backward Citations)
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