Integrated Infusion and Aspiration System and Method

a technology of infusion and aspiration and aspiration, which is applied in the direction of wound drains, drug compositions, catheters, etc., can solve the problems of post-operative pain and swelling, use of systemic opioid analgesics, and host of possible undesirable side effects

Inactive Publication Date: 2007-03-29
LMA NORTH AMERICA
View PDF7 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the most difficult aspects of enduring a major surgical procedure is coping with the post-operative pain and swelling.
However, the use of systemic opioid analgesics, whether administered by oral, intramuscular, or intravenous methods, includes a host of possible undesirable side effects, including: respiratory depression, renal function depression, nausea, constipation, ataxia, confusion, sweating, and itching.
However, contemporary percutaneous pain medication infusion pumps do not provide consistent relief of pain.
Another challenge associated with percutaneous pain medication infusion pumps is the need to concurrently address edema, or fluid build-up and swelling, at the wound site.
However, concurrent use of a pain medication infusion pump and an aspiration catheter creates two significant compromises to the patient.
First, two percutaneous catheters, one for the aspiration catheter and one for the infusion pump, potentially doubles the risk of infection since two percutaneous tracts are maintained.
Second, an aspiration catheter coupled with an active vacuum source that is designed for the removal of fluid build-up tends to remove the infused pain medication before it has effectively produced the desired local anesthetic effect.

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
  • Integrated Infusion and Aspiration System and Method
  • Integrated Infusion and Aspiration System and Method
  • Integrated Infusion and Aspiration System and Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Shown in FIG. 1 is one embodiment of an integrated infusion and aspiration system 35 incorporating features of the present invention. System 35 is applied to a knee 25 of a patient to treat a surgical wound that would result from, for example, a total knee arthroplasty surgery. While FIG. 1 demonstrates use of one embodiment of integrated infusion and aspiration system 35 for a knee, it is understood that the present invention can be used for any internal body wound created by surgery, trauma, or disease.

[0020] In general, integrated infusion and aspiration system 35 comprises a catheter assembly 20 coupled with a flow control system 19. Viewed as a whole, catheter assembly 20 has a proximal section 21, an opposing distal section 22, and a middle section 23 extending therebetween. More specifically, catheter assembly 20 comprises an infusion catheter 10 and an aspiration catheter 15. Infusion catheter 10 comprises a proximal section 40, an opposing distal section 42, and a m...

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

An integrated infusion and aspiration system includes of a flow control system and a catheter assembly. The catheter assembly includes an infusion catheter and an aspiration catheter, each having ports located at the distal end of thereof. The distal ends of the catheters are separated so that the aspiration catheter ports can be positioned on an opposing side of a surgical wound site from the infusion catheter ports. Methods of operation of the integrated infusion and aspiration system provides for uninterrupted aspiration with concurrent controlled delivery of an infusion solution such that the infusion solution is substantially evenly dispersed of over the wound site.

Description

CROSS-REFERENCE TO RELATED DOCUMENTS [0001] This application is a continuation of: [0002] U.S. patent application Ser. No. 10 / 896,515, filed Jul. 22, 2004, which carries Applicants' Docket No. 13447.26.1 and is entitled INTEGRATED INFUSION AND ASPIRATION SYSTEM AND METHOD, which is a divisional of: [0003] U.S. patent application Ser. No. 10 / 218,106, filed Aug. 12, 2002, now U.S. Pat. No. 6,893,414, which carries Applicants' Docket No. 13447.26 and is entitled INTEGRATED INFUSION AND ASPIRATION SYSTEM AND METHOD. [0004] All of the above are incorporated herein by reference.FIELD OF THE INVENTION [0005] The present invention relates generally to the post-surgical treatment of closed wounds and specifically to methods and systems for concurrent aspiration and infusion of a wound site to manage pain, swelling, bleeding and infection. BACKGROUND OF THE INVENTION [0006] One of the most difficult aspects of enduring a major surgical procedure is coping with the post-operative pain and swel...

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(United States)
IPC IPC(8): A61M31/00A61M27/00A61M1/00A61M25/00
CPCA61M1/0023A61M1/0037A61M1/0058A61M25/0021A61M2025/018A61M27/00A61M2025/0004A61M2025/0037A61M2025/0039A61M25/007A61P23/00A61M1/75A61M1/743A61M1/92A61M1/85
Inventor GOBLE, E. MARLOWEHOWARD, MARK E.MASON, JEFFREY T.FALLIN, T. WADE
Owner LMA NORTH AMERICA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products