SURGICAL RETRACTOR INCLUDING ROTATABLE KNOBS

• US 20120245427A1
• Filed: 02/10/2012
• Published: 09/27/2012
• Est. Priority Date: 03/23/2011
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Kleyman, Gennady
• Granted Patent: US 9,033,873 B2
• Time in Patent Office: Days
• US Class Current: 600/208
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes

Abstract

A surgical access port is provided for insertion through an incision formed in a body wall of a patient. The surgical access port generally includes a sleeve assembly having a folding assembly provided at a proximal end of the sleeve assembly. The sleeve assembly includes a flexible sleeve and a flexible distal ring provided at a distal end of the flexible sleeve. A proximal end of the sleeve assembly includes a pocket formed in the sleeve material. The folding assembly is located in the pocket and generally includes a proximal ring and one or more ring knobs rotatably mounted on the proximal ring. Locking structure, in the form of a ratchet and pawl mechanism, may be provided to secure the ring knobs in position relative to the proximal ring.

Claims

1. A surgical access port comprising:

a sleeve assembly including a flexible sleeve having a distal end and a proximal end; and

a folding assembly positioned at the proximal end of the sleeve, the folding assembly including a proximal ring and a ring knob rotatably mounted on the proximal ring.

2. The surgical access port as recited in claim 1, wherein the folding assembly is located within a pocket of sleeve material formed in the proximal end of the sleeve assembly.

3. The surgical access port as recited in claim 2, wherein the pocket is formed by attaching a proximal most end of the sleeve back onto itself.

4. The surgical access port as recited in claim 2, wherein the ring knob includes a ring portion rotatably mounted on the proximal ring and a handle extending from the ring portion.

5. The surgical access port as recited in claim 4, wherein the folding assembly includes a locking structure to secure the ring portion relative to the proximal ring.

6. The surgical access port as recited in claim 5, wherein the locking structure is a ratchet and pawl mechanism.

7. The surgical access port as recited in claim 6, wherein the ratchet and pawl mechanism includes ratchet teeth formed on an outer surface of the proximal ring and a pawl tooth formed in the ring portion, the pawl tooth being engageable with the ratchet teeth.

8. The surgical access port as recited in claim 7, wherein the ratchet teeth cover about one quarter of the outer surface of the proximal ring.

9. The surgical access port as recited in claim 1, wherein the sleeve assembly includes a distal ring at the distal end of the sleeve.

10. The surgical access port as recited in claim 9, wherein the distal ring is flexible.

11. A surgical access port comprising:

a sleeve assembly including a flexible sleeve having a distal end and a proximal end, the proximal end forming a pocket of sleeve material; and

a folding assembly positioned within the pocket formed at the proximal end of the sleeve, the folding assembly including a proximal ring and at least two ring knobs rotatably mounted on the proximal ring.

12. The surgical access port as recited in claim 11, wherein the folding assembly includes at least three ring knobs rotatably mounted on the proximal ring assembly.

13. The surgical access port as recited in claim 12, wherein the folding assembly includes four ring knobs rotatably mounted on the proximal ring.

14. The surgical access port as recited in claim 12, wherein the at least three ring knobs are equally spaced about the proximal ring.

15. The surgical access port as recited in claim 11, wherein the sleeve assembly includes a distal ring at the distal end of the flexible sleeve.

16. The surgical access port as recited in claim 15, wherein the distal ring is flexible.

17. A method of providing a surgical access port in the body of a patient:

providing a surgical access port having a sleeve assembly including a flexible sleeve having a distal end and a proximal end, the proximal end forming a pocket of sleeve material and the distal end including a flexible distal ring; and

a folding assembly at the proximal end of the sleeve, the folding assembly including a proximal ring and at least two ring knobs, positioned within pockets formed at the proximal end of the sleeve, and rotatably mounted on the proximal ring;

inserting the distal end of the flexible sleeve and the flexible distal ring through an incision formed in a body wall of a patient by compressing the flexible distal ring and inserting the flexible distal ring distally through the incision until it passes into a body cavity;

tensioning the surgical access port in a proximal direction to bring the flexible distal ring into engagement with an inner surface of the body wall;

grasping the pockets and rotating the at least two ring knobs through an arc sufficient to bring the pockets into engagement with an outer surface of the body wall.

18. The method as recited in claim 17, wherein the at least two ring knobs are rotated through an arc of approximately 90°

.

19. The method as recited in claim 17, wherein the at least two ring knobs are rotated through an arc greater than 90°

to capture a portion of the sleeve about the pockets.

20. The method as recited in claim 19, wherein the at least two ring knobs are rotated through an arc of approximately 270°

.