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US20050137607A1 Expired / Lapsed US ⏱️ 0.0 years remaining

Bone dilator system

Assignee: Trans1 Inc
•
Filing: 2004-10-22
•
Granted: —
•
Expires: 2024-10-22
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Abstract

Abstract Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.

Inventors

  • 👤 Robert Assell
  • 👤 Stephen Ainsworth
  • 👤 Andrew Cragg
  • 👤 Eugene Dickhudt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/02; A61B17/025; A61B17/68; A61B17/70; A61B17/7074; A61B17/16; A61B17/1604; A61B17/1662; A61B17/1671; A61B17/1697; A61B17/17; A61B17/1739; A61B17/1757; A61B17/22; A61B17/84; A61B17/86; A61B17/8605; A61B17/861; A61B17/8615; A61B17/8875; A61B17/8877; A61B17/888; A61B17/8886; A61B17/8888; A61B17/92; A61B17/0218; A61B17/1613; A61B17/1615; A61B17/8897; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/0046; A61B2017/00469; A61B2017/0256; A61B2017/22038; A61B2017/22042; A61B2017/22044; A61B17/34; A61B17/3417; A61B17/3421; A61B2017/3445; A61B2017/922

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 54 words
1 . A bone dilator system, for enlarging the diameter of a bore through bone, comprising: a first cannulated rod, having a proximal end and a distal end; a handle on the proximal end; and a cannulated slap hammer, for reciprocal movement over a guide pin extending through the cannulated rod and slap hammer.
Claim 2
Dependent Claim 54 words
1 . A bone dilator system, for enlarging the diameter of a bore through bone, comprising: a first cannulated rod, having a proximal end and a distal end; a handle on the proximal end; and a cannulated slap hammer, for reciprocal movement over a guide pin extending through the cannulated rod and slap hammer.
Claim 3
Dependent Claim 16 words
2 . A bone dilator system as in claim 1 , further comprising a guide pin.
Claim 4
Dependent Claim 20 words
3 . A bone dilator system as in claim 1 , further comprising a tapered tip on the distal end.
Claim 5
Dependent Claim 28 words
4 . A bone dilator system as in claim 1 , further comprising at least a second cannulated rod, having a greater diameter than the first cannulated rod.
Claim 6
Dependent Claim 28 words
5 . A bone dilator system as in claim 4 , further comprising at least a third cannulated rod, having a greater diameter than the second cannulated rod.
Claim 7
Dependent Claim 29 words
6 . A bone dilator system as in claim 4 , further comprising a tubular sheath, wherein at least one cannulated rod is removably positionable within the tubular sheath.
Claim 8
Dependent Claim 38 words
7 . A bone dilator system as in claim 6 , further comprising a first retention structure on the sheath and a second, complementary retention structure on the cannulated rod, to releasably attach the sheath to the rod.
Claim 9
Dependent Claim 52 words
8 . A bone dilator kit, for increasing the diameter of a bore through bone, comprising: a first cannulated rod having a proximal handle and a first diameter; a second cannulated rod having a proximal handle and a second diameter; a third cannulated rod having a proximal handle and a third diameter.
Claim 10
Dependent Claim 52 words
8 . A bone dilator kit, for increasing the diameter of a bore through bone, comprising: a first cannulated rod having a proximal handle and a first diameter; a second cannulated rod having a proximal handle and a second diameter; a third cannulated rod having a proximal handle and a third diameter.
Claim 11
Dependent Claim 16 words
9 . A bone dilator kit as in claim 8 , further comprising a slap hammer.
Claim 12
Dependent Claim 26 words
10 . A bone dilator kit as in claim 8 , wherein at least one of the first, second and third diameters is about 6 mm.
Claim 13
Dependent Claim 26 words
11 . A bone dilator kit as in claim 8 , wherein at least one of the first, second and third diameters is about 8 mm.
Claim 14
Dependent Claim 26 words
12 . A bone dilator kit as in claim 8 , wherein at least one of the first, second and third diameters is about 10 mm.
Claim 15
Dependent Claim 32 words
13 . A bone dilator kit as in claim 8 , further comprising a tubular sheath having a central lumen dimensioned to axially slidably receive at least one of the cannulated rods.
Claim 16
Dependent Claim 26 words
14 . A bone dilator kit as in claim 13 , further comprising a lock for releasably retaining the sheath on the at least one rod.
Claim 17
Dependent Claim 57 words
15 . A method of enlarging a bore in bone, comprising the steps of: advancing a first tubular dilator, having a first diameter, over a guide pin and into the bone; removing the first tubular dilator; and advancing at least a second tubular dilator, having a second, greater diameter, over the guide pin and into the bone.
Claim 18
Dependent Claim 57 words
15 . A method of enlarging a bore in bone, comprising the steps of: advancing a first tubular dilator, having a first diameter, over a guide pin and into the bone; removing the first tubular dilator; and advancing at least a second tubular dilator, having a second, greater diameter, over the guide pin and into the bone.
Claim 19
Dependent Claim 30 words
16 . A method of enlarging a bore in bone as in claim 15 , wherein at least one of the advancing steps is accomplished using a cannulated slap hammer.
Claim 20
Dependent Claim 30 words
17 . A method of enlarging a bore in bone as in claim 15 , further comprising advancing a third tubular dilator over the guide pin and into the bone.
Claim 21
Dependent Claim 90 words
18 . A method of positioning a tubular access sheath in communication with a site in a bone, comprising the steps of: advancing a first tubular dilator, having a first diameter, over a guide pin and into the bone; removing the first tubular dilator; advancing at least a second tubular dilator, having a second, greater diameter and a removable tubular sheath, over the guide pin and into the bone; and removing the second tubular dilator, leaving the tubular sheath in position to provide access to the site in the bone.
Claim 22
Dependent Claim 90 words
18 . A method of positioning a tubular access sheath in communication with a site in a bone, comprising the steps of: advancing a first tubular dilator, having a first diameter, over a guide pin and into the bone; removing the first tubular dilator; advancing at least a second tubular dilator, having a second, greater diameter and a removable tubular sheath, over the guide pin and into the bone; and removing the second tubular dilator, leaving the tubular sheath in position to provide access to the site in the bone.

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