Device for determining the quality and solidness of the vascular wall

• US 7,997,146 B2
• Filed: 01/23/2009
• Issued: 08/16/2011
• Est. Priority Date: 01/25/2008
• Status: Expired due to Fees

• Current Assignee: Jaroslav Benedik
• Original Assignee: Jaroslav Benedik
• Inventors: Benedik, Jaroslav
• Primary Examiner(s): Caputo; Lisa
• Assistant Examiner(s): ROY, PUNAM P
• Application Number:
  US12/358,849
• Publication Number:
  US 20090191615A1
• Time in Patent Office: 935 Days
• Field of Search: 73/543.7, 73/543.9, 731/50.A, 737/88, 738/26, 738/27, 738/30, 738/31, 738/37, 738/55, 738/60
• US Class Current: 73/788
• CPC Class Codes: A61B 5/0055 by applying suction
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: G01N 2203/0282 Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
• CPC Class Codes: G01N 3/24 by applying steady shearing forces G01N3/26, G01N3/28 take precedence
• CPC Class Codes: G01N 33/4833 of solid biological material, e.g. tissue samples, cell cultures tissue in vivo A61B5/00; cell suspensions G01N33/48735

Abstract

A device for determining the quality and solidness of the vascular wall is provided for testing tissue samples and includes opposed first and second fixation plates. The fixation plates are connectable to an air pump or other source of vacuum for fixing the tissue sample in position. The device is connectable to a detector such as a meter, gauge, or printing device capable of displaying or producing an image or display corresponding to the value of a force required to disrupt or break the internal links between individual layers of the vascular wall. The fixation plates are movable relative to one another and may be abducted by abductors connecting the plates or by rotational movement of one fixation plate relative to the other by a shaft or other rotational mechanism.

Claims

1. A device for determining the quality and solidness of the vascular wall which can be used to determine the mutual cohesiveness of individual layers of the vascular wall by a destructive method on tissue samples comprising:

first and second fixation plates which are movable one relative to another and configured for receiving and fixing a tissue sample therebetween; and

a connector for operatively connecting at least one of the fixation plates to a detector for providing a signal for measuring and/or recording a value corresponding to the solidness of the tissue sample with mutual abduction of the fixation plates,

wherein the first and second fixation plates are each provided with respective opposing walls having holes, each of said first and second fixation plates further including outlets operatively connected to the holes and adapted for connection to a source of negative fluid pressure for fixing the tissue sample to the first and second fixation plates.

2. The device for determining the quality and solidness of the vascular wall according to claim 1, including an abductor for abducting the one of the first and second fixation plates relative to the other in a direction substantially perpendicular to their respective opposing walls.

3. The device for determining the quality and solidness of the vascular wall according to claim 1 including a longitudinal joint connecting the first and second fixation plates and an abductor for abducting one of the first and second fixation plates relative to the other.

4. The device for determining the quality and solidness of the vascular wall according to claim 1, wherein the first and second fixation plates are each provided with respective opposing walls, and wherein the wall of the first fixation plate includes a blade of a closed geometric shape and wherein the wall of the second fixation plate is provided with a groove complementally shaped and sized with the blade, and wherein the blade and groove determine a standard size of a tissue sample having a surface area adapted to the shape and size of the blade and groove which tissue sample is to be tested by the device.

5. A device for determining the quality and solidness of the vascular wall which can be used to determine the mutual cohesiveness of individual layers of the vascular wall by a destructive method comprising:

first and second mutually flexible opposite fixation plates, one being movable relative to the other of random shape, and adapted to receive a tissue sample between and fixed to them, the device being connected to a detector for measuring and recording a value corresponding to the solidness of the tissue sample with mutual abduction of the fixation plates;

wherein the first and second fixation plates are each provided with respective opposing walls having holes, each of said first and second fixation plates further including outlets operatively connected to the holes and adapted for connection to a source of negative fluid pressure for fixing the tissue sample to the first and second fixation plates.

6. The device for determining the quality and solidness of the vascular wall according to claim 5, wherein the fixation plates are capable of being abducted from each other linearly with the aid of an abductor.

7. The device for determining the quality and solidness of the vascular wall according to claim 5, wherein the fixation plates are connected by a longitudinal joint for determining their angular abduction with the aid of an abductor.

8. The device for determining the quality and solidness of the vascular wall according to claim 5, wherein each of the first and second fixation plates include a wall, said wall of the first fixation plate being opposite to the wall of the second fixation plate, and wherein the opposite walls of the fixation plates are equipped with a blade of a closed geometric shape in one of the walls and a groove in the other of the walls, said groove having a shape and size corresponding to the blade, for determining a standard size of a tissue sample to be tested, the tissue sample having a surface area which is adapted to the shape of the blade and groove.

9. A device according to claim 5, wherein said first and second fixation plates are connected to one another by a hinge and are adapted to be shifted away from each other by pivoting about said hinge by an opening element.

10. A device according to claim 5, wherein the wall of said first fixation plate is provided with a blade of a closed geometric shape and the wall of the second fixation plate is provided with a complementally shaped groove, the blade and the groove determining a standard size of the tissue sample, and wherein the openings are located in the areas of the wall defined within the blade and the groove of the respective first and second fixation plates.