Manual assembly for cardio-circulatory resuscitation

• US 20110230821A1
• Filed: 03/07/2011
• Published: 09/22/2011
• Est. Priority Date: 03/20/2010
• Status: Abandoned Application

• Current Assignee: Uros Babic
• Original Assignee: Uros Babic
• Inventors: Babic, Uros
• Application Number:
  US12/932,804
• Publication Number:
  US 20110230821A1
• Time in Patent Office: Days
• US Class Current: 604/28
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 2025/1013 with concentrically mounted balloons, e.g. being independently inflatable
• CPC Class Codes: A61M 2039/0258 for vascular access, e.g. blood stream access
• CPC Class Codes: A61M 2039/0261 Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body
• CPC Class Codes: A61M 2039/0297 at least part of it being inflatable, e.g. for anchoring, sealing or removing
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0668 splittable, tear apart
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 25/10182 Injector syringes
• CPC Class Codes: A61M 25/10184 Means for controlling or monitoring inflation or deflation
• CPC Class Codes: A61M 60/117 for assisting the heart, e.g. transcutaneous or external ventricular assist devices
• CPC Class Codes: A61M 60/13 by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
• CPC Class Codes: A61M 60/258 Piston pumps
• CPC Class Codes: A61M 60/268 the displacement member being flexible, e.g. membranes, diaphragms or bladders
• CPC Class Codes: A61M 60/427 the force acting on the blood contacting member being hydraulic or pneumatic
• CPC Class Codes: A61M 60/438 the force acting on the blood contacting member being mechanical

Abstract

In one embodiment a large volume syringe pump assembly with a mechanism for facilitated manual driving (100) is connected to a large bore access cannula (200) which is placed percutaneously into the arrested left ventricular cavity of a victim. The cannula is equipped with balloons for sealing (212) and for immobilization (218). A large bore 3 way stopcock (208) is incorporated into the proximal end of cannula. The syringe pump assembly includes a large volume syringe (140) with a vent for air removal (141). A tubing length (148) is incorporated into the distal end of syringe. Tubing length has a connector at its distal end (150) for rapid connection to cannula. The syringe pump assembly includes a lever (122) pivotal attached to the syringe. By rearward manual movement of the lever the oxygenated blood is aspirated from the left ventricle and from the left atrium into the large volume syringe. The large volume of aspirated blood is vigorously injected back into the arrested left ventricle through the same access cannula (200). Since the large volume of injected blood exceeds the volume capacity of the non-contracting left ventricle, the surplus of injected blood volume is ejected through the aortic valve into the aorta. Perpetuating the aspiration and injection maneuvers by manual actuation of the syringe pump assembly (100) provides perfusion of vital structures during cardio circulatory arrest. Other embodiments are described and shown.

Claims

1. A manual assembly for invasive cardio-circulatory resuscitation comprising

a large volume syringe pump assembly,

a large bore cannula for accessing a chamber of an arrested heart,

means for a rapid connection of said syringe pump assembly to said cannula.

2. The assembly of claim 1 wherein said syringe pump assembly having

a large volume syringe situated into an immobilization frame

wherein said frame having further means for vigorous manual actuation of said syringe pump that enables repeated aspirations and injections of large volume of blood.

3. The assembly of claim 1 wherein said syringe pump assembly comprises

a large volume syringe situated within a cylindrical frame

wherein said frame having means for stabilization of said syringe

wherein said means for stabilization include syringe fasteners of said frame to said syringe wherein said means for stabilization having further frame props for syringe support

wherein said syringe having further on its distal end a tubing length which is incorporated into the distal end of said syringe, wherein said tubing length having on its distal end a connector for a rapid connection to said cannula, wherein said syringe having further a plunger with a large grip for power double handed driving

whereby said device is immobilized during the procedure by holding the foot of the aid on the pedal of said frame.

4. The assembly of claim 1 wherein

said cannula comprising a large bore tubular body that has a part with a wire reinforced wall and a part with a non braided transparent wall wherein said part with non braided wall has a large bore 3-way stopcock incorporated into proximal end of said non braided part.

5. The assembly of claim 4 wherein

said cannula is assembled with means for direct percutaneous trans-thoracic introduction and placement into a chamber of an arrested heart wherein said means for trans-thoracic introduction include a single large introducing dilator for over the wire introduction.

6. The assembly of claim 5 wherein

said cannula having further means for sealing its own passageway from exterior of the body through the chest wall and through the wall of heart chamber of an arrested heart wherein said means for sealing include a large compliant balloon situated on the outer wall of said cannula wherein said balloon is covering the length of said cannula from exterior of the body through the chest wall and chest cavity through the wall of the heart chamber to the side holes on the distal end of said cannula whereby said compliant balloon when inflated makes a waist within its intracorporeal passageway and expands proximal and distal of said passageway.

7. The assembly of claim 6 wherein said cannula having further means for its own stabilization within the passageway and within the chamber of an arrested heart wherein said means for stabilization include a smaller non compliant balloon situated on the outer wall of said cannula within the larger compliant balloon wherein said smaller balloon is covering only the length of said cannula that is situated within the chamber of arrested heart whereby said non compliant balloon together with inflated said large compliant balloon stabilizes said cannula within the heart chamber preventing its dislodgement during vigorous injections of blood or fluid volume through said cannula.

8. The assembly of claim 7 wherein said cannula having further means for a rapid connection to said pump assembly said means for rapid connection comprising a large bore 3-way stopcock incorporated into proximal end of said cannula wherein said 3-way stopcock having a lumen large enough to accept a large introducing dilator.

9. The assembly of claim 1 wherein said syringe pump assembly is equipped with means for facilitated manual driving comprising a lever pivotally attached to the plunger of said syringe and to the frame into which said syringe is situated.

10. The assembly of claim 9

wherein said syringe having further, a small tubing length for air removal incorporated into its upper distal end

wherein said small tubing length for air removal includes further on its distal end a small 3-way stopcock wherein said syringe having further on its outer wall means for engagement of said syringe into an immobilization frame wherein said means for engagement include a muff incorporated into outer wall of said syringe.

11. The assembly of claim 10 wherein

said frame into which said syringe is situated includes a top plate, a base of frame and vertical arms wherein said frame having further fasteners of said syringe to said frame

whereby said fasteners and said muff of said syringe enabling a rapid, installation, fastening, immobilization or removal of said syringe.

12. The assembly of claim 1 comprising:

a) a large volume syringe equipped with means for facilitated manual driving wherein said means for facilitated manual driving include a lever pivotally attached to the plunger of said syringe and to the frame into which said syringe is situated whereby rearward and forward manual movements of said lever moves plunger and piston of said syringe enabling a perpetual aspirations and injections of large volume of blood wherein said syringe having further on its distal end a tubing length wherein said tubing length is incorporated into the distal end of said syringe wherein said tubing length having on its distal end a connector for rapid connection to a large bore 3-way stopcock wherein said syringe having further on its upper distal end an opening for a small tubing length for air removal wherein said small tubing length for air removal includes further on its distal end a small 3-way stopcock comprising further,

b) a large bore cannula for accessing a chamber of an arrested heart wherein said cannula having a distal part that has a wire reinforced wall and a proximal part having a wireless wall wherein said cannula is assembled with means for direct trans-thoracic introduction and placement into the chamber of an arrested heart wherein said means for trans thoracic introduction include an introducing dilator for advancement over a guiding wire wherein said cannula having further means for sealing its own passageway through the chest wall and through the wall of an arrested heart wherein said means for sealing comprising a compliant large balloon situated at the outer wall of said cannula whereby said compliant balloon covers the whole passageway of said cannula from exterior of the body through the chest wall and through the wall of the heart chamber to the interior of the heart chamber of an arrested heart

wherein said cannula having further means for its own stabilization within the chamber of an arrested heart and within its passageway wherein said means for stabilization include a smaller noncompliant balloon situated on the outer wall of the distal part of said cannula within the said larger compliant balloon whereby said noncompliant balloon together with inflated said larger compliant balloon prevents a dislodgement of said cannula during vigorous injections of blood or fluid volume into the arrested heart wherein said cannula having further a large bore 3-way stopcock incorporated into proximal end of said cannula whereby said 3-way stopcock accepts a passage of said introducing dilator during introduction of said cannula whereby said large bore 3-way stopcock enables a rapid connection of said cannula to said syringe assembly

whereby said 3-way stopcock enables further an alternative connection to an infusor for supply of additional fluid volume and for a rapid application of needed medication during and immediately after a resuscitation procedure.

13. The assembly of claim 1 wherein

said cannula having characteristics and means for trans-vascular access to a chamber of an arrested heart wherein said cannula has a longer braided part distally and a non braided shorter part proximally wherein said proximal part having a large bore 3 way stopcock incorporated into proximal end of said proximal part wherein said means for trans-vascular access include a long guiding wire over which a pigtail shaped catheter is advanced, over which catheter an introducing dilator of appropriate dimension is introduced over which dilator said cannula for transvascular access is introduced and placed through a large vein or through a large artery into the chamber of an arrested heart.

14. A manual assembly for cardio-circulatory resuscitation comprising a doubled syringe pump assembly equipped with means for common simultaneous or individual facilitated manual driving, having further double cannulas for accessing both chambers of an arrested heart, having further means for connection of said doubled syringe pump assembly to said double cannulas.

15. The assembly of claim 14 wherein

said doubled cannulas comprise two cannulas for direct trans thoracic placement into chambers of an arrested heart.

16. The assembly of claim 14 wherein

said doubled cannulas comprise two cannulas for trans vascular access to chambers of an arrested heart

17. The device of claim 14 wherein

said doubled cannulas comprise a cannula for trans vascular access to one chamber of an arrested heart and one cannula for trans thoracic access to another chamber of said arrested heart.

18. A method of providing a manually driven rapid perfusion of vital organs during cardio-circulatory arrest comprising:

(a) inserting a large bore cannula into the left ventricle of an arrested heart by percutaneous over the wire technique,

(b) immobilizing said cannula within its passageway

(c) sealing the intracorporeal passageway of said cannula

(d) connecting said cannula to a manually driven large volume syringe pump assembly,

(e) applying a negative suction pressure within said left ventricle by manual actuation of said pump assembly wherein the mitral valve of said left ventricle opens and the aortic valve closes,

(f) aspirating oxygenated blood from the accessed left ventricle and from the left atrium,

(g) injecting a large volume of aspirated blood back into said arrested left ventricle through the same said access cannula whereby the mitral valve closes and the aortic valve opens wherein the injecting volume exceeds the volume capacity of accessed left ventricle whereby the surplus of injecting blood volume is ejected through the aortic valve to perfuse the vital organs,

(h) perpetuating the manually actuated aspiration and injection maneuvers.