LAPAROSCOPIC FLEXIBLE SUCTION DEVICE AND ASSOCIATED METHODOLOGY

• US 20190321019A1
• Filed: 04/18/2019
• Published: 10/24/2019
• Est. Priority Date: 04/19/2018
• Status: Active Grant

• Current Assignee: Platform Innovations, LLC
• Original Assignee: Fifth Arm Surgical, LLC
• Inventors: Novell, Robert F.
• Granted Patent: US 11,172,914 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 1/00094 Suction openings
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00323 Cables or rods
• CPC Class Codes: A61B 2017/00331 with preformed bends
• CPC Class Codes: A61B 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/00862 elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/00876 magnetic
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61M 1/71 Suction drainage systems containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• 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 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/008 Strength or flexibility characteristics of the catheter tip
• CPC Class Codes: A61M 25/0102 : Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod
• CPC Class Codes: A61M 25/0147 : with movable mechanical means, e.g. pull wires
• CPC Class Codes: A61M 25/0158 : with magnetic or electrical means, e.g. by using piezo materials, electroactive polymers, magnetic materials or by heating of shape memory materials
• CPC Class Codes: A61M 3/0279 : Cannula; Nozzles; Tips; their connection means

Abstract

A laparoscopic flexible suction/irrigation device of the present invention encases a inner rigid cannula with an outer flexible cannula. Upon translating the distal end of outer flexible cannula beyond the distal end of the inner rigid cannula, the outer flexible cannula returns to a preexisting curvilinear shape. This curved extension can thereafter be positioned via a proximal handle to concavities within the surgical site for precise and effective fluid retraction.

Claims

1. A surgical device comprising:

an elongated substantially inner rigid cannula having a first passageway extending from a distal end of the inner rigid cannula to a proximal end of the inner rigid cannula;

a handle connected to the proximal end of the inner rigid cannula;

an outer flexible cannula having a second passageway extending therethrough wherein at least a portion of the inner rigid cannula is deposed within the second passageway of the outer flexible cannula, there being clearance between an interior surface of the outer flexible cannula and an outer surface of the inner rigid cannula to allow fluid flow therebetween; and

a clamping device operable to releasably seal the interior surface of the outer flexible cannula to the outer surface of the inner rigid cannula proximate to the proximal end of the inner rigid cannula.

2. The surgical device of claim 1, further comprising a vacuum source coupled to the first passageway of the inner rigid cannula.

3. The surgical device of claim 1, further comprising a fluid source coupled to the first passageway of the inner rigid cannula.

4. The surgical device of claim 1, wherein the outer flexible cannula includes a curvilinear shape memory.

5. The surgical device of claim 1, wherein the outer flexible cannula having a curvilinear shape is elastically deformable so as to accept the inner rigid cannula.

6. The surgical device of claim 1, wherein responsive to a portion of the outer flexible cannula extending beyond the distal end of the inner rigid cannula, that portion of the outer flexible cannula returns to an original curvilinear shape.

7. The surgical device of claim 1, wherein responsive to the outer flexible cannula extending beyond the distal end of the inner rigid cannula, the outer flexible cannula returns to a preexisting curved shape.

8. The surgical device of claim 1, wherein the outer flexible cannula translates freely along the inner rigid cannula.

9. The surgical device of claim 1, wherein the inner rigid cannula is substantially coextensive with the outer flexible cannula and wherein the outer flexible cannula is longitudinally and radially movable with respect to the inner rigid cannula.

10. The surgical device of claim 1, wherein the outer flexible cannula is electrically nonconductive.

11. A method of using a surgical device for localized fluid injection or removal during laparoscopic surgery, the method comprising:

positioning the surgical device proximate to a surgical site wherein the surgical device includes an elongated substantially inner rigid cannula having a first passageway extending from a distal end of the inner rigid cannula to a proximal end of the inner rigid cannula and an outer flexible cannula having a second passageway extending therethrough wherein at least a portion of the inner rigid cannula is deposed within the second passageway of the outer flexible cannula, there being clearance between an interior surface of the outer flexible cannula and an outer surface of the inner rigid cannula operable to allow fluid flow therebetween;

sliding an outer flexible cannula along the inner rigid cannula such that a distal end of the outer flexible cannula extends beyond the distal end of the inner rigid cannula;

releasably sealing the interior surface of the outer flexible cannula to the outer surface of the inner rigid cannula proximate to the proximal end of the inner rigid cannula; and

applying a fluidic force to the first passageway.

12. The method of using a surgical device according to claim 11, wherein responsive to a portion of the outer flexible cannula extending beyond the distal end of the inner rigid cannula, that portion of the outer flexible returns to an original curvilinear shape.

13. The method of using a surgical device according to claim 12, further comprising restoring the portion of the outer flexible cannula extending beyond the distal end of the inner rigid cannula to a preexisting curved state.

14. The method of using a surgical device according to claim 11, further comprising positioning the inner rigid cannula substantially coextensive with the outer flexible cannula, wherein the outer flexible cannula is longitudinally and radially movable with respect to the inner rigid cannula.

15. The method of using a surgical device according to claim 11, further comprising elastically deforming the outer flexible cannula so as to conform to the inner rigid cannula.

16. The method of using a surgical device according to claim 11, further comprising translating the outer flexible cannula freely along the inner rigid cannula.

17. The method of using a surgical device according to claim 11, wherein the fluidic force removes fluid from the surgical site.

18. The method of using a surgical device according to claim 11, wherein the fluidic force injects fluid to the surgical site.