Vascular wound closure device

a wound closure and wound technology, applied in the field of vascular wound closure devices, can solve the problems of difficult access to other wounds in the vasculature of patients, difficult to locate and access other wounds, and wounds that will reopen and begin bleeding, so as to improve the healing of wounds, facilitate re-entry, and reduce scarring

Inactive Publication Date: 2006-03-23
LOMA LINDA UNIV MEDICAL CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0017] Due to the use of a vacuum, contaminants and blood clots are cleaned off the puncture site allowing better healing of the wound. Also, re-entry is made easier and less scarring is produced.

Problems solved by technology

There exists, however, a significant chance that upon movement by the patient, the wound will reopen and begin bleeding again.
Although efforts have been made to close the puncture wound using staples, clips, and sutures, they have been unsuccessful, largely due to the inability to clearly locate and visualize the puncture wound in the femoral artery.
Other wounds in the vasculature of a patient can also be difficult to locate and access.

Method used

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  • Vascular wound closure device
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Examples

Experimental program
Comparison scheme
Effect test

second alternate embodiment

of the Retractor

[0077] Yet another embodiment of the retractor of the present invention is illustrated in FIGS. 21 and 22. The retractor 200 comprises a body portion 202 having a distal end 204, and a broader, collar portion 206 at its proximal end 205. Like the embodiment described above, this retractor 200 is formed in two halves 202a, 202b and preferably has a tapered distal end 204. Each half of the body of the retractor 202a, 202b, has a semicircular groove 208 on its flat internal surface 209. When the two halves 202a, 202b are joined together, the semi-circular grooves 208 form a channel 210 running through the interior of the device 200, extending from the proximal end 205 to the distal end 204.

[0078] The collar 206 of the device 200 includes a pin assembly 212 comprising two parallel pins 212a, 212b attached at one end to a handle 212c, and two set screws 214a, 214b. As illustrated in FIG. 22, the pins 212a, 212b traverse guide passages 216a, 216b bored through the collar ...

third alternate embodiment

of the Retractor

[0079] Still another embodiment of the retractor of the present invention is illustrated in FIGS. 28 and 29. The retractor 300 comprises a distal body portion 302, and a proximal handle portion 304. The distal body portion 302 of the retractor 300 is formed in two portions or halves 302a, 302b. At the distal end 306 of the body portion 302, a retracting portion 308 extends away from, and at an angle to the body portion 302. Preferably, the retracting portion 308 extends substantially perpendicular to the body portion 302. The retracting portion 308 is also formed in two separable portions or halves 308a, 308b. Each of these portions 308a, 308b can be semi-circular in shape, or have a semicircular groove 312 in its flat, internal surface (FIG. 29). The external surfaces are preferably rounded, and tapered toward the distal end 310. When the two portions 308a, 308b are brought together such that the two portions abut one another, as seen in FIG. 28, a channel 314 is fo...

fourth alternate embodiment

of the Retractor

[0082] Yet another embodiment of the retractor of the present invention is illustrated in FIGS. 48-50. The retractor 600 comprises a distal body portion 602 and a proximal handle portion 604. The distal body portion 602 of the retractor 600 is formed in two portions or halves 602a, 602b. At the distal end 606 of the body portion 602, a retracting portion 608 extends away from, and at an angle to, the body portion 602. Preferably, the retracting portion 608 extends substantially perpendicular to the body portion 602. The retracting portion 608 is also formed in two separable portions or halves 608a, 608b. Each of these portions 608a, 608b preferably has a semi-circular groove 612 in its internal surface. The external surfaces are preferably rounded, and tapered toward the distal end 610. When the two portions 608a, 608b are brought together such that the two portions abut one another, as seen in FIG. 49, a channel 614 is formed through the interior of the retracting p...

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Abstract

An apparatus is provided for facilitating the locating and closing of an opening in a blood vessel. The apparatus includes a catheter and retractor that are advanced over a guidewire until they are positioned at or adjacent the vascular wound. The retractor comprises a plurality of members that close upon and engage the catheter. A coupling member selectively maintains the retractor members in the closed position.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. application Ser. No. 09 / 929,700, filed Aug. 13, 2001, which is a divisional of U.S. application Ser. No. 09 / 325,982, filed Jun. 4, 1999, now U.S. Pat. No. 6,287,322, which is a continuation-in-part of U.S. application Ser. No. 09 / 092,282, now U.S. Pat. No. 6,524,326, filed Jun. 5, 1998, which is a continuation-in-part of U.S. application Ser. No. 08 / 984,757, now U.S. Pat. No. 6,425,901, filed Dec. 4, 1997, which is a continuation-in-part of U.S. application Ser. No. 08 / 943,369, filed Oct. 3, 1997, now abandoned, which is a continuation-in-part of U.S. application Ser. No. 08 / 764,611, U.S. Pat. No. 6,004,341 filed Dec. 5, 1996, which claims the benefit of U.S. Provisional Application Ser. No. 60 / 009,643, filed Dec. 7, 1995. The entirety of each of the priority applications is hereby incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present i...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B17/08A61B17/00A61B17/02A61B17/068A61B17/128A61B17/30A61B17/34
CPCA61B17/0057A61B17/02A61B17/0206A61B17/0682A61B17/08B29K2067/003A61B17/122A61B17/128A61B17/3439A61B2017/306A61B17/10
Inventor ZHU, YONG HUAKIRSCH, WOLFF M.
Owner LOMA LINDA UNIV MEDICAL CENT
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