Unlock instant, AI-driven research and patent intelligence for your innovation.

Rotary cutting tool with improved cutting and reduced clogging on soft tissue and thin bone

A soft tissue and tissue technology, applied in the direction of surgical cutting instruments, endoscopic cutting instruments, medical science, etc., can solve the problem that the cutting window is not completely processed

Active Publication Date: 2013-03-20
MEDTRONIC INC
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Thus, while surgical cutting instruments continue to be extremely useful, the need to prevent clogging of the cutting window has not been fully addressed, especially when considering the wide variety of tissue types and procedures involved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotary cutting tool with improved cutting and reduced clogging on soft tissue and thin bone
  • Rotary cutting tool with improved cutting and reduced clogging on soft tissue and thin bone
  • Rotary cutting tool with improved cutting and reduced clogging on soft tissue and thin bone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] An early form of surgical cutting instrument generally similar to that described below can be found in US Patent Application Publication No. US 2005 / 0277970, which is incorporated by reference. Generally, such instruments include a proximal handle and a tool extending distally from the handle. In this case, a preferred embodiment of an improved surgical cutting instrument 30 is illustrated in figure 1 middle. Surgical cutting instrument 30 includes a first blade member or assembly 32 , a second blade member or assembly 34 , and a handle 36 . These components are conventional or are described in more detail below. In general, however, the first blade assembly 32 includes a first tubular member 40 having a cutting end 42 . The second blade assembly 34 includes a second tubular member 44 having a cutting window 46 . The first tubular member 40 is coaxially disposed within the second tubular member 44 such that the cutting end 42 is exposed at the cutting window 46 at t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A surgical cutting instrument including two coaxially arranged tubular members. The first tubular member has a cutting tip and is co-axially disposed within the second tubular member, which in turn has a cutting window to expose the cutting tip to tissue and bone through the cutting window. Movement of the tubular members with respect to each other debrides soft tissue and thin bone presented to the cutting window. The second (outer) tubular member has one or more features which contribute to reduce clogging of the cutting tip as a whole.

Description

Background technique [0001] Surgical cutting instruments in which an elongated inner member (ie, a solid shaft or tube) rotates within an elongated outer tubular member have gained good acceptance in surgical procedures that enable treatment of a surgical site through a narrow inlet or channel. Typically, the outer tubular member includes a distal end forming an opening defining a cutting window or port, and the inner member includes a distal end forming a cutting end for cutting body tissue at the window. The proximal ends of the inner and outer members are often secured to a hub, which in turn is attached to a powered handle for rotating and / or oscillating the inner member relative to the outer tubular member. The cutting end of the inner member may have various configurations for the surgical procedure in question (eg, cutting, resection, cleaning, scraping, etc.), with the cutting window suitably configured to match the particular configuration of the cutting end. [0002...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/32A61B17/3207
CPCA61B17/1613A61B17/320783A61B17/32002A61B17/32A61B17/16A61B17/3207A61B17/56
Inventor 约书亚·D·鲁宾
Owner MEDTRONIC INC