Patent US20050137604A1 successfully refreshed from Google Patents.

US20050137604A1 Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for introducing material along an access path to a treatment site

Assignee: Trans1 Inc

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Filing: 2004-10-22

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Granted: —

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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 11:34

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: 16

Claim 1

Independent Claim 55 words

1 . An inserter for introducing material along an access path to a treatment site, comprising: an elongate, tubular delivery cannula, having a proximal end, a distal end, and a central lumen extending therethrough; a packer having an elongate body dimensioned for axial reciprocal movement within the lumen; and an impactor mass on the packer.

Claim 2

Dependent Claim 55 words

Claim 3

Dependent Claim 19 words

2 . An inserter as in claim 1 , further comprising a beveled distal end on the delivery cannula.

Claim 4

Dependent Claim 20 words

3 . An inserter as in claim 1 , wherein the central lumen increases in diameter in the proximal direction.

Claim 5

Dependent Claim 21 words

4 . An inserter as in claim 1 , further comprising a funnel on the proximal end of the delivery cannula.

Claim 6

Dependent Claim 21 words

5 . An inserter as in claim 1 , wherein the impactor mass is on the proximal end of the packer.

Claim 7

Dependent Claim 17 words

6 . An inserter as in claim 1 , further comprising a bushing on the elongate body.

Claim 8

Dependent Claim 19 words

7 . An inserter as in claim 6 , further comprising at least one O ring on the bushing.

Claim 9

Dependent Claim 29 words

8 . An inserter as in claim 6 , wherein the bushing is dimensioned relative to the inside diameter of the central lumen to provide a sliding fit therebetween.

Claim 10

Dependent Claim 56 words

9 . A method of introducing material into a treatment site, comprising the steps of: positioning an elongate, tubular delivery cannula along an access tract to a treatment site; introducing material into the tubular cannula; providing an elongate packer; and axially advancing the packer into the tubular cannula to advance the material to the treatment site.

Claim 11

Dependent Claim 56 words

Claim 12

Dependent Claim 29 words

10 . A method as in claim 9 , wherein the positioning step comprises positioning a distal end of the cannula in communication with a bore in the spine.

Claim 13

Dependent Claim 30 words

11 . A method as in claim 10 , wherein the positioning step comprises positioning a distal end of the cannula in communication with a bore in the sacral spine.

Claim 14

Dependent Claim 18 words

12 . A method as in claim 9 , wherein the introducing step comprises introducing bone graft material.

Claim 15

Dependent Claim 19 words

13 . A method as in claim 9 , wherein the introducing step comprises introducing bone growth facilitation material.

Claim 16

Dependent Claim 17 words

14 . A method as in claim 9 , wherein the treatment site comprises a disc space.

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