FreshPatents.com Logo
stats FreshPatents Stats
2 views for this patent on FreshPatents.com
2013: 1 views
2012: 1 views
Updated: April 21 2014
newTOP 200 Companies filing patents this week


    Free Services  

  • MONITOR KEYWORDS
  • Enter keywords & we'll notify you when a new patent matches your request (weekly update).

  • ORGANIZER
  • Save & organize patents so you can view them later.

  • RSS rss
  • Create custom RSS feeds. Track keywords without receiving email.

  • ARCHIVE
  • View the last few months of your Keyword emails.

  • COMPANY DIRECTORY
  • Patents sorted by company.

AdPromo(14K)

Follow us on Twitter
twitter icon@FreshPatents

Emergency vascular repair prosthesis

last patentdownload pdfdownload imgimage previewnext patent


20120290072 patent thumbnailZoom

Emergency vascular repair prosthesis


A prosthesis system for repair of a transected body vessel is provided. The system can include first and second prostheses each including a tubular graft body and a support structure. Each prosthesis can be expandable between a compressed and an expanded configuration. In the expanded configuration, outer surfaces of the first and second prostheses can engage walls of the body vessel. The system can include a sleeve member formable into a tubular body. The first and second prostheses can be coupled to one another at a joint to form a coupled prosthesis. The sleeve member can receive the coupled prosthesis and cover the joint to inhibit leakage therefrom. The prosthesis system can connect first and second portions of the body vessel to permit blood flow therethrough. The sleeve member can be discrete to the coupled prosthesis or can have one end fixedly attached to the coupled prosthesis.
Related Terms: Prostheses Transected Vascular Repair

Inventors: Elizabeth A. Theobald, Kurt J. Tekulve
USPTO Applicaton #: #20120290072 - Class: 623 115 (USPTO) - 11/15/12 - Class 623 
Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor > Arterial Prosthesis (i.e., Blood Vessel) >Stent Structure

view organizer monitor keywords


The Patent Description & Claims data below is from USPTO Patent Application 20120290072, Emergency vascular repair prosthesis.

last patentpdficondownload pdfimage previewnext patent

BACKGROUND

The present disclosure relates generally to medical devices for emergency repair of body vessels. More particularly, it relates to prosthesis systems used for connecting transected body vessels and gaining hemostasis during open surgical emergency medical procedures.

Trauma physicians frequently encounter patients having traumatic injury to a body vessel, such as lacerated vessels or even transected vessels, resulting from gunshots, knife wounds, motor vehicle accidents, explosions, etc. Significant damage to a body vessel may expose a patient to deleterious conditions such as the loss of a limb, loss of function of a limb, increased risk of stroke, impairment of neurological functions, and compartment syndrome, among others. Particularly severe cases of vascular injury and blood loss may even result in death. In such severe situations, the immediate goal is to obtain hemostasis while maintaining perfusion of adequate blood flow to critical organs, such as the brain, liver, kidneys, and heart.

Examples of treatment that are commonly performed by trauma physicians to treat body vessel injuries include the clamping of the vessel with a hemostat, the use of a balloon tamponade, the ligation of the damaged vessel at or near the site of injury, or the insertion of one or more temporary shunts. However, conventional surgical repair is generally difficult with such actively bleeding, moribund patients. In many instances, there is simply not enough time to repair the body vessel adequately by re-approximating and suturing the body vessel. In many situations, the trauma physician will simply insert a temporary shunt (such as a Pruitt-Inahara Shunt) into the vessel. However, use of temporary shunts has been linked to the formation of clots. This may require returning the patient to the operating room for treatment and removal of the clots, often within about 36 to 48 hours of the original repair. Since shunts are generally placed as a temporary measure to restore blood flow and stop excessive blood loss, the shunt is typically removed when the patient has stabilized (generally a few days later) by a specialized vascular surgeon. After removal, the vascular surgeon will replace the shunt with a vascular graft, such as a fabric graft that is sewn into place. With respect to ligation, ligation of the damaged blood vessel may result in muscle necrosis, loss of muscle function, or a potential limb loss or death.

Due to the nature of the body vessel injury that may be encountered, the insertion of shunts or ligation of a blood vessel, for example, often requires that such treatments be rapidly performed at great speed, and with a high degree of physician skill. Such treatments may occupy an undue amount of time and attention of the trauma physician at a time when other pressing issues regarding the patient\'s treatment require immediate attention. In addition, the level of particularized skill required to address a vascular trauma may exceed that possessed by the typical trauma physician. Particularly, traumatic episodes to the vessel may require the skills of a physician specially trained to address the particular vascular trauma, and to stabilize the patient in the best manner possible under the circumstances of the case.

Some open surgical techniques utilize sutures to affix damaged tissue portions surrounding fittings that have been deployed with the vessel, which requires the trauma physician to take time to tie the sutures properly. Although in modern medicine sutures can be tied in relatively rapid fashion, any step in a repair process that occupies physician time in an emergency situation is potentially problematic. In addition, the use of sutures to affix the vessel to the fitting compresses the tissue of the vessel against the fitting. Compression of tissue may increase the risk of necrosis of the portion of the vessel tissue on the side of the suture remote from the blood supply. When present, necrosis of this portion of the vessel tissue may result in the tissue separating at the point of the sutures. In this event, the connection between the vessel and the fitting may eventually become weakened and subject to failure. If the connection fails, the device may disengage from the vessel. Therefore, efforts continue to develop techniques that reduce the physician time required for such techniques, so that this time can be spent on other potentially life-saving measures, and the blood flow is more quickly restored and damage caused by lack of blood flow is minimized.

Trauma physicians generally find it difficult to manipulate a prosthesis for insertion into a body vessel that has been traumatically injured. For example, one difficulty arises from the trauma physician trying to limit the size of the opening created for gaining access to the injured vessel so that such opening requiring healing is as small as possible. Another difficulty is that the injured vessel can be anywhere in the body, having different surrounding environments of bone structure, muscle tissue, blood vessels, and the like, which makes such obstructions difficult to predict in every situation and leaves the trauma physician working with an even further limited access opening. Another potential consideration is the amount of body vessel removed during a transection. The goal would be to remove a portion of the body vessel as small as possible. Yet, a small portion removed from the vessel leaves such a small space between the two vessel portions, thereby making it difficult to introduce the prosthesis between the two vessel portions.

Thus, what is needed is a prosthesis for use in open surgical repair of an injured body vessel, such as an artery or a vein, (and in particular a transected vessel) during emergency surgery. It would be desirable if such prosthesis is easy for a trauma physician to use, and can be rapidly introduced into two vessel portions of a transected vessel, thereby providing a conduit for blood within the injured body vessel.

SUMMARY

Accordingly, a system is provided herein to address at least some of the shortcomings of the prior art. The system can be used to connect two vessel portions such as for open surgical repair of a transected body vessel. In one example, the system can include a first prosthesis and a second prosthesis, each having a first outer end and a second inner end. Each of the prostheses may be discrete and independently moveable between a compressed configuration and an expanded configuration. Each prosthesis can include a substantially tubular graft body and a support structure. A lumen can extend through each prosthesis between the first and second ends thereof. The first end of each of the first and second prostheses, when in the expanded configuration, can engage a respective first or second vessel portion of the body vessel. The second end of at least one of the first and second prostheses can include a coupling member to engage the second end of the other of the first and second prostheses at a joint to form a coupled prosthesis. The coupled prostheses can have a continuous flow path defined by the lumens of the first and second prostheses in communication with one another. The system further can include a sleeve member. The sleeve member can include a tubular body and a passageway extending therethrough to receive the coupled prosthesis. The sleeve member can sealably cover the joint to inhibit leakage therefrom.

In another example, an apparatus can be used to connect first and second vessel portions. The apparatus can include a coupled prosthesis. The coupled prosthesis can include first and second prosthesis portions. Each prosthesis portion can include a substantially tubular graft body attached to a support structure, a first end, a second end, and a lumen extending between the first and second ends. The second end of one of the first and second prosthesis portions can include a coupling member interlocked with the other of the first and second prosthesis portions at a joint to form the coupled prosthesis. Each of the first and second prosthesis portions may be independently movable between a compressed configuration and an expanded configuration. The first end of each of the first and second prosthesis portions may be adapted to engage the first or second vessel portion, respectively. The apparatus can include a sleeve member that can be formable into a substantially tubular body. The sleeve member can have first and second sleeve ends and a passageway extending longitudinally therethrough to receive the coupled prosthesis. The sleeve member can sealably cover the joint to inhibit leakage therefrom.

In yet another example, a method of connecting first and second vessel portions of a body vessel is provided herein. A first end of a first prosthesis in a compressed configuration can be introduced into an end opening of the first vessel portion of the body vessel. A second end of the first prosthesis can remain exposed external to the first vessel portion. The first prosthesis can be expanded to an expanded configuration to engage a vessel wall of the first vessel portion. A first end of a second prosthesis in a compressed configuration can be introduced into an end opening of the second vessel portion of the body vessel. A second end of the second prosthesis can remain exposed external to the second vessel portion. The second prosthesis can be expanded to an expanded configuration to engage a vessel wall of the second vessel portion. The second ends of the first and second prostheses can be coupled to one another at a joint to form a coupled prosthesis. The joint may be positioned external to the first and second vessel portions. The joint of the coupled prosthesis can be covered with a sleeve member to inhibit leakage from the joint.

BRIEF DESCRIPTIONS OF THE DRAWINGS

FIGS. 1A-1B are perspective views of one example of a prosthesis system.

FIGS. 2A-2C illustrate examples of coupling members.

FIG. 3 illustrates a flexible member threaded into a sleeve material of a sleeve member.

FIGS. 4A-4C are perspective views of another example of a prosthesis system.

FIGS. 5A-5H illustrate a method of connecting two body vessel portions with one example of a prosthesis system.

DETAILED DESCRIPTION

OF THE DRAWINGS AND THE PRESENTLY PREFERRED EMBODIMENTS

For the purposes of promoting an understanding of the principles of the present disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. The prosthesis described herein can be useful for repair of a body vessel, such as a blood vessel, during an emergency open surgical procedure. This prosthesis can be particularly useful for repair of a lacerated artery or vein during emergency surgery, and particularly, to obtain hemostasis while maintaining blood perfusion. Other applications for the prosthesis will become readily apparent to one skilled in the art from the detailed description.

FIGS. 1A-1B depict one embodiment of a prosthesis system 10 having a first prosthesis portion 20, a second prosthesis portion 40, and a sleeve member 60. In some embodiments, the first prosthesis portion 20 and the second prosthesis portion 40 may be identical to one another in all respects. In other embodiments, one prosthesis portion may include features and/or elements that may be distinct from those of the other prosthesis portion. Therefore, the description herein will be confined to the first prosthesis portion 20 except where the features of the second prosthesis portion 40 differ from those of the first prosthesis portion. It will be readily recognized by one skilled in the art that any description of the first prosthesis portion 20 may apply equally to the second prosthesis portion 40 unless such application is inconsistent with this disclosure.

The first prosthesis portion 20 can have an outer first end 21 and an inner second end 22. The first prosthesis portion 20 can include a generally tubular graft body 23 having an inner surface 24 and an outer surface 25. The inner surface 24 of the graft body 23 can define a passageway 26 extending longitudinally within the first prosthesis portion 20. The first prosthesis portion 20 further can include a support structure 27 disposed on the inner surface 24 and/or the outer surface 25 of the graft body 23. At least one anchoring member 30 can be disposed along any portion of the first prosthesis portion 20 between the first end 21 and the second end 22. In one example, the anchoring member 30 can be disposed closer to the first end than the second end, and may be disposed at the first end 21. The anchoring member 30 can be configured to engage an outer wall of a body vessel as further described herein. The anchoring member 30 may include a plurality of anchoring members disposed around the circumference of the prosthesis. The anchoring member 30 can provide vessel fixation, while avoiding adverse conditions associated with disturbing the vasa vasorum and/or pressure induced necrosis of the medium muscular arteries of the type that may result from tying ligatures circumferentially around a connector or a vascular conduit. The anchoring member can include various shaped member structures, including barbs, fibers, bristles, or other protruding and penetrating media, which can be attached to the graft body and/or the support structure, and preferably integral with the support structure.



Download full PDF for full patent description/claims.

Advertise on FreshPatents.com - Rates & Info


You can also Monitor Keywords and Search for tracking patents relating to this Emergency vascular repair prosthesis patent application.
###
monitor keywords



Keyword Monitor How KEYWORD MONITOR works... a FREE service from FreshPatents
1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored.
3. Each week you receive an email with patent applications related to your keywords.  
Start now! - Receive info on patent apps like Emergency vascular repair prosthesis or other areas of interest.
###


Previous Patent Application:
Control of degradation profile of bioabsorbable poly(l-lactide) scaffold
Next Patent Application:
Implantable medical device having enhanced endothelial migration features and methods of making the same
Industry Class:
Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
Thank you for viewing the Emergency vascular repair prosthesis patent info.
- - - Apple patents, Boeing patents, Google patents, IBM patents, Jabil patents, Coca Cola patents, Motorola patents

Results in 0.46002 seconds


Other interesting Freshpatents.com categories:
Amazon , Microsoft , IBM , Boeing Facebook -g2-0.1311
     SHARE
  
           

FreshNews promo


stats Patent Info
Application #
US 20120290072 A1
Publish Date
11/15/2012
Document #
13106560
File Date
05/12/2011
USPTO Class
623/115
Other USPTO Classes
International Class
61F2/82
Drawings
7


Prostheses
Transected
Vascular Repair


Follow us on Twitter
twitter icon@FreshPatents