Device and method for access to interior body regions
AssigneeJon Kiev
InventorJon Kiev
Life of this patent
Estimating the term…
Abstract
A device and method is provided to gain access to interior body regions. The system includes a stylet needle assembly, a safety needle assembly, a blade assembly, a retractable obturator assembly, and a dilator assembly. The safety needle assembly accesses an interior body region, after which the blade assembly expands the pathway created by the safety needle assembly. The obturator then further expands the pathway and delivers the dilator assembly to the desired location. The safety needle assembly, obturator assembly, and blade assembly are removed, leaving the dilator assembly in place for future procedures.
Claims9
An access device comprising:
- a safety needle assembly operable to create a pathway through skin and into said interior body regions;
- a stylet needle assembly operable to create a pathway through skin and into said interior body regions;
- a blade assembly operable to cut tissue to create a skin nick and provide access into interior body regions;
- a retractable obturator assembly operable to expand said pathway into said interior body regions;
- and
- a dilator assembly operable to maintain said pathway and provide access to said interior body regions.
A method of accessing interior body regions, comprising:
- providing an access device defining:
- a stylet needle assembly, a stylet assembly, a retractable obturator assembly, a blade assembly, and a dilator assembly;
- combining said stylet needle assembly, said retractable obturator assembly, said blade assembly, and said dilator assembly together;
- advancing said retractable obturator assembly against the skin, wherein said advancing of said retractable obturator assembly against the skin allows said stylet needle assembly and said blade assembly to contact the skin;
- advancing said retractable obturator assembly through the skin and soft tissues into said interior body regions, wherein when said retractable obturator reaches said interior body regions, said retractable obturator covers said stylet assembly and said blade assembly and prevents said stylet assembly and said blade assembly from contacting said interior body regions;
- disconnecting said stylet needle assembly, said retractable obturator assembly, and said blade assembly from said dilator assembly, leaving said dilator assembly in the body to provide access to said interior body regions.
A method of accessing interior body regions, comprising:
- providing an access device defining:
- a safety needle assembly, a stylet assembly, a retractable obturator assembly, a blade assembly, and a dilator assembly;
- combining said safety needle assembly, said retractable obturator assembly, said blade assembly, and said dilator assembly together;
- advancing said safety needle assembly through the skin into interior body regions;
- confirming the position of said safety needle assembly by aspirating fluid through said safety needle assembly;
- removing said safety needle assembly from said retractable obturator assembly;
- inserting said stylet assembly through said retractable obturator assembly;
- advancing said retractable obturator assembly against the skin, wherein said advancing of said retractable obturator assembly against the skin allows said stylet needle assembly and said blade assembly to contact the skin;
- advancing said retractable obturator assembly through the skin and soft tissues into said interior body regions, wherein when said retractable obturator reaches said interior body regions, said retractable obturator covers said stylet assembly and said blade assembly and prevents said stylet assembly and said blade assembly from contacting said interior body regions;
- disconnecting said stylet needle assembly, said retractable obturator assembly, and said blade assembly from said dilator assembly, leaving said dilator assembly in the body to provide access to said interior body regions.
Dependencies are inferred from the claim text.